HomeMy WebLinkAbout032238 ORD - 10/13/2020Ordinance to adopt the City Of Corpus Christi Water Conservation Plan Revised
2020 Edition and revising the City Code of Ordinances Section 55-150 (a) regarding
Adoption of Revised Plan with the addition of an explanation of the Model Industrial
Water Conservation Plan and other adjustments updating information.
BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF CORPUS CHRISTI,
TEXAS:
SECTION 1. That the City of Corpus Christi hereby adopts the City of Corpus Christi
Water Conservation Plan Revised 2020 edition, which is attached and incorporated as
Exhibit A. The 2020 edition replaces the prior edition of the Water Conservation Plan.
SECTION 2. That City Code of Ordinances, Chapter 55, Article XII Water Resource
Management, Section 55-150 (a) is revised to replace the Water Conservation Plan
approved on May 28, 2013 with the Water Conservation Plan Revised 2020 edition as
follows:
Sec. 55-150. - Scope, purpose, authorization, and definitions.
(a) Scope. There is hereby established a City of Corpus Christi Water Conservation
Plan and Drought Contingency Plan. The City of Corpus Christi Water Conservation
Plan approved on May 28, 2013 Revised 2020 edition, and the Drought Contingency
Plan Revised 2018 edition, approved January 30, 2018, as amended by ordinance,
a true copy of each which is on file in the office of the city secretary, is -have been
adopted, and shall be followed in matters concerning water conservation, drought
management, and water supply enhancement programs.
SECTION 3. This Ordinance takes effect upon publication.
The foregoing ordinance,was read` for the first time and passed to its second reading on this the
•-C9TV\ day of T _ Wit! , 2020, by the following vote:
Joe McComb
V
Roland Barrera
Rudy Garza
Paulette M. Guajardo
Gil Hernandez
Michael Hunter
AY-
Ben
Molina
Everett Roy N.
Q
Greg Smith Y
032238
SCANNED
The foregoing ordinance wap read for the second time and passed finally on this the
1day of 0C-1-01 , 2020, by the following vote:
Joe McComb / Michael Hunter /.
Roland Barrera Ben Molina JJJ
Rudy Garza Everett Roy / FP
Paulette M. Guajardo
Greg Smith
Gil Hernandez 0
PASSED AND APPROVED
ATTEST:
elf2-crof-ru��
Reb'ecca Huerta
City Secretary
EFFECT$VE DATE
day of , 2020.
032238
The f`oregoing ordinance wa r ad for the second time and passed finally on this the
13 day of OCTU , 2020, by the following vote:
Joe McComb N_ Michael Hunter
Roland Barrera / t-�V( Ben Molina Alk_
Rudy Garza Everett Roy
Paulette M. Guajardo Greg Smith
Gil Hernandez
PASSED AND APPROVED I 3* day of J\ , 2020.
ATTEST:
R1052 -e-ej- 10/1/47/N (,(A?-kv‘V
Reb cca Huerta Joe M C mb
City Secretary Mayo
EFFECTIVE DATE
032238
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REVISED 2020
Water Conservation Plan
2020
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Table of Contents
1. Introduction 1
1.1 Background of the Water Utilities Department 1
1.2 Purpose of the Plan 1
1.3 Public Involvement 2
1.4 Organization of the Water Conservation Plan 2
2. Supply Profile 3
2.1 Supply Sources 3
2.2 Potential Future Sources (Undeveloped Sources) 5
2.3 Water Customers 6
2.3.1 Wholesale Customers 6
2.3.2 Retail Customers 6
2.4 Water Treatment Plant 6
2.5 Distribution 7
2.6 Master Meter 7
2.7 Wastewater Utility Profile 7
3. Demand Profile 7
3.1 Current Population 8
3.2 Raw Water Diversions 8
3.3 Other Raw Water Demands 10
3.4 Treated Water Demands 10
3.5 Seasonal Demands 12
3.6 Projected Populations and Demands 12
4. Goals 13
4.1 Benefits of Conservation 13
4.2 Water Planning/Conservation Goals and Objectives 14
4.3 Five and Ten-Year Quantifiable Conservation Goals 14
4.4 Schedule for Implementing Plan 16
5. Water Conservation Practices 17
5.1 Water Conservation Measures 17
5.2.1 Prohibition on Wasting Water 18
5.2.2 Irrigation Timing 18
5.2.3 Restaurant Water Saving 18
5.3 Future Updates to Codes 18
5.4 Landscaping Standard 20
5.5 Rebates and Incentive Programs 20
Table of Contents
5.5.1 Plumbers to People 20
5.5.2 Rainwater Harvesting 20
5.5.3 Irrigation Consultation Program 20
5.6 City-led Water Conservation Programs 21
5.6.1 Use of Reclaimed Water 21
5.6.2 Improvements in City-owned Properties 21
5.6.3 Identifying and Repairing Leaks 22
5.6.4 Park Water Conservation 22
5.6.5 Metering All Connections 23
5.6.6 Record Management 24
5.6.7 System Water Audit and Water Loss 24
5.6.8 Water Conservation Staff 24
5.7 Education 25
5.7.1 School Education 25
5.7.2 Public Information 26
5.7.3 Water-Wise Landscape Design and Conservation Program 28
5.8 Water Conservation Pricing 28
5.9 Coordination with Region N (Coastal Bend) Regional Water Planning Group 29
5.10 Method to Monitor the Effectiveness of Conservation Measures 29
5.11 Means of Implementation and Enforcement 29
5.12 Reservoir System Operating Plan 30
6. Wholesale Customer Conservation 30
6.1 Introduction 30
6.2 Wholesale Customer Targets and Goals 30
6.3 Metering, Monitoring, and Records Management 31
6.4 Leak Detection and Repair 31
6.5 Contractual Requirements 31
Appendices
A. Water and Wastewater Utility Profile
B. TCEQ 2001 Agreed Order
C. Corpus Christi Water Rates
D. Reservoir Operating Plan
E. ARTICLE_XII._Water_Resource_Management
F. Model Industrial Water Conservation Plan
G. Supplement to Corpus Christi Water Conservation Plan to Address TAC§288.7
Table of Contents ii
Water Conservation Plan
1. Introduction
This Water Conservation Plan (WCP) is a guidebook and reference manual for the City
of Corpus Christi Water Utilities, its partners and customers. This chapter outlines the
background of the City of Corpus Christi's Water Utilities, the purpose and reasoning of the
WCP, expected results, and an overview of its layout and organization.
1.1 Background of the Water Utilities Department
The City of Corpus Christi Water Utilities has been in operation for over 100 years. It serves
nearly 500,000 residents in Corpus Christi and the Coastal Bend Region.
Its mission is to effectively manage the City's water supply, production, and distribution system
through the operation and maintenance of the water supply system in order to meet water
supply needs; to provide safe drinking water; to review design and construction of water
facilities that will ensure water system quantity and reliability to meet projected growth; and
to identify and meet consumer needs and expectations.
The Water Utilities supplies water for municipal and industrial use in a seven-county service
area. Major raw (untreated) water customers include municipalities such as Alice Water
Authority, Beeville Water Supply District, City of Mathis, and San Patricio Municipal Water
District and industries such as Celanese and Flint Hills Resources. Treated water customers
include Nueces County Water Improvement District No. 4 (Port Aransas), San Patricio
Municipal Water District, South Texas Water Authority, and the Violet Water Supply
Corporation. The Water Utilities operates a water laboratory and water maintenance activity
that oversees the repair and replacement of transmission and distribution water lines.
The Water Utilities also has a well-established conservation program. The City was the first in
Texas to develop a Drought Contingency Plan in 1986, which served as a guide for state
officials. Since 1988 there has been a conservation coordinator and/or team of professionals
developing and implementing outreach programs to help reduce water waste and improve
efficiency. Conservation outreach includes everything from school education to the Xeriscape
Garden and is explained in detail in Chapter 5.
1.2 Purpose of the Plan
The purpose of this WCP is to ensure long-term water security and efficiency for the residents
and businesses served by the City of Corpus Christi Water Utilities. This long-term
planning and management is critical so that supplies of water will always meet and exceed
the demands of Coastal Bend customers. It allows water supplies to be sustainable as the
region grows. Short- term water security and planning during dry times is explained in a
separate Drought Contingency Plan, which can be found in the City Water Utilities website .
1
As a water supplier, the City of Corpus Christi's Plan must adhere to Title 30 of the Texas
Administrative Code (TAC) Chapter 288 (30 TAC § 288). This Plan contains all the provisions
required in 30 TAC§288 including conservation plans for municipal users,wholesale providers,
a model plan for industrial users, and a drought contingency plan.
General and specific goals of the Plan are explained in Chapter 4.
1.3 Public Involvement
The City provided citizens opportunity to learn about the plan during the Council meeting on
September 29, 2020, citizens were also given an opportunity to become informed, ask
questions, and provide feedback about the plan. The notice was posted on the official
electronic bulletin board in the atrium of Corpus Christi City Hall.
1.4 Organization of the Water Conservation Plan
This revised WCP is organized in a way to make information easy to find and understand.
This Plan is a separate document from the Drought Contingency Plan (DCP). The chapters
guide the reader through the most important issues and are shown below. Supporting
documents are in the appendix section to assist the reader in understanding the plans
contents.
• Chapter 1: Introduction —the basics of the Water Utilities Department, purpose of the
Plan, and organization of the Plan.
• Chapter 2: Supply Profile — details on the supply of the Water Utilities Department
including the water sources, distribution system, and water treatment plant.
• Chapter 3: Demand Profile — details on the current customer population and demand,
and estimated projections of future population and demands. Demands are provided
in totals and divided into sectors.
• Chapter 4: Goals — benefits of conservation; overall water planning and conservation
goals; quantifiable five- and ten-year conservation goals and water loss goals based on
per capita consumption.
• Chapter 5: Water Conservation Practices—efforts that encourage and/or enforce the
conservation of water, or that increase the efficiency of water use.
• Chapter 6: Wholesale Customer Conservation—goals that the City encourages its
wholesale customers to adopt.
• Appendices: include the Utility Profile, Summary of Texas Commission on
Environmental Quality (TCEQ) 2001 Agreed Order, Water Rates, Reservoir Operating
Plan, Water Resource Management Code of Ordinance, Model Industrial Water
Conservation Plan, and a supplemental document to the Corpus Christi Water
Conversation Plan to address TAC 288.7.
• Note: Model Industrial Water Conservation Plan — This water conservation model
highlights best management practices that could be implemented for industrial customers
who are required to submit an individual water conservation plan to the TCEQ.
2
2. Supply Profile
This Chapter explains the four sources from which the City gets water supply to its customers
in the Coastal Bend region. In addition to the supply sources, the distribution system, water
treatment plant, and the wastewater utility profile are briefly explained.
2.1 Supply Sources
The City of Corpus Christi Water Utilities obtains its raw water solely from surface water
sources. These surface water bodies are Lake Corpus Christi, Choke Canyon Reservoir,
Lake Texana and the Colorado River of each of these water bodies are explained below.
Lake Corpus Christi
Lake Corpus Christi is a water storage reservoir located approximately 33 miles northwest of
the City. It was completed on April 26, 1958 with the dedication of the Wesley Seale Dam.
When full, the lake level is 94 feet above sea level and has a capacity of 256,339 acre-feet(83.5
billion gallons). The surface area of the reservoir is 19,748 acres (30.8 mi2).
Lake Corpus Christi is part of the Nueces River Basin (or watershed). It receives inflow from
the Nueces, Frio, and Atascosa Rivers. Inflow from the Frio River also goes through the
Choke Canyon Reservoir. Supply in Lake Corpus Christi relies on rainfall in the Nueces/Frio
River basins. These two watersheds covers a combined area of 16,764 square miles and
reach as far north as Rocksprings in Edwards county, and west close to Eagle Pass in
Maverick County.
Choke Canyon Reservoir
Choke Canyon Reservoir is located approximately 70 miles northwest of Corpus Christi. It has
a capacity of 662,821 acre-feet (215 billion gallons). When it is full, the water level is 220.5
feet above sea level, and the surface area is 25,989 acres (39.7 mi2).
The United States Bureau of Reclamation financed, designed, and built the reservoir, which
was dedicated on June 8, 1982. The City operates and maintains the facility.
Choke Canyon Reservoir receives inflow from the Frio River Watershed. This watershed
covers an area of 5,529 square miles from Three Rivers in the south to Kerr County in the
north. Water from the reservoir travels down into the Frio River, which flows into the Nueces
River and then Lake Corpus Christi.
3
Lake Texana
The third surface source of water for the City is Lake Texana in Jackson County, located
approximately 90 miles northeast of Corpus Christi. When full, the lake has a capacity
of 161,085 acre-feet (52.5 billion gallons) and the water level is 44 feet above sea level. Its
surface area when full is 9,727 acres (15.2 mi2).
Lake Texana was formed with the completion of the Palmetto Bend Dam in 1980 by the U.S.
Bureau of Reclamation. It is on the Navidad River, which is part of the Lavaca River Basin
and mainly flows through Lavaca and Jackson Counties. The Lake is currently owned and
operated by the Lavaca-Navidad River Authority (LNRA).
The City contracted 41 ,840 acre-feet from LNRA in the 1990s after a severe drought
between 1993 and 1996. During that time, Nueces River Basin stream-flows were the lowest
recorded, even lower than the much-remembered 1950s Drought. The City is currently
contracted to divert 31,440 acre-feet after the LNRA recalled 10,400 acre-feet.
The City of Corpus Christi, the City, the Nueces River Authority, the Port of Corpus Christi,
and the Lavaca-Navidad River Authority worked together to deliver water via a new pipeline
from Lake Texana to the City. The 101-mile-long pipeline was named for the late Mary
Rhodes, mayor of Corpus Christi from 1991 to 1997, in recognition of her special
contribution to the development of water resources for the residents and industries of the
Coastal Bend. The pipeline came online in September 1998. It pumps water through a 64-
inch pipeline from Lake Texana directly to the O.N. Stevens Water Treatment Plant in Calallen.
Approximately 40 to 70 percent of the water used by Corpus Christi comes from Lake Texana
through the Mary Rhodes Pipeline.
Colorado River
On September 22nd, 1992 the City of Corpus Christi entered into a contract with the Garwood
Irrigation Company to purchase a portion of the Garwood's watertight. The City can purchase
up to 35,000 acre-foot per year of the168,000 acre-foot per year. In 2010 the City of Corpus
Christi began the initial steps of planning and designing Mary Rhodes Pipeline Phase II and
construction of the 42-mile pipeline started in April 2014. The project consisted of a pipeline, a
pump station, and a sedimentation basin that starts at the Colorado River near Bay City and
connects to Phase I of the pipeline at Lake Texana.
A map of the regional water supply system and watershed is shown in Figure 2.1.
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Figure 2.1.Map of the Coastal Bend Regional Water Supply,including the three surface water supply
reservoirs
2.2 Potential Future Sources (Undeveloped Sources)
To meet the demands of a growing community, the City has been taking steps to ensure future
water supplies.
The City is involved with the Corpus Christi Aquifer Storage and Recovery Conservation
District (CCASRCD). This groundwater conservation district was formed in 2005 by the 79th
Texas Legislature and is:
"...dedicated to protecting groundwater supplies within the District, developing and
maintaining an aquifer storage and recovery program, providing the most efficient use of
groundwater resources to supplement existing supplies, while controlling and preventing waste
of groundwater."
The CCASRCD explored the possibility of using groundwater aquifers as storage for extra
supply for the City. During wetter-than-normal years, the City would pump excess, partially-
treated water into the aquifer storage area, which is not subject to water loss from
5
evaporation. Water from the storage area could then be used during drought periods. A similar
project by the San Antonio Water System stores over 90,000 acre-feet of water as an
emergency supply.
The City of Corpus Christi is also working on activities for a procurement of a Seawater
Desalination plant with a base design output of 20 MGD (million gallons a day) expandable to 30
MGD located on the Corpus Christi Inner Harbor while simultaneously working on acquiring
permits for a future plant in the La Quinta Channel area for the Coastal Bend Region.
Other potential sources of water supply are still being researched and explored. A detailed list
of water management strategies for the Coastal Bend Region can be found in the Region N
Regional Water Plan, located at:
https://www.twdb.texas.qov/waterplanninq/rwp/regions/n/index.asp
2.3 Water Customers
The City has both wholesale and retail customers who purchase water from the supply system.
2.3.1 Wholesale Customers
The wholesale customers are water utilities or businesses who purchase the water in bulk,
and then bill their own respective customers. The City provides both raw and treated
water to wholesale customers. Those wholesale customers receiving raw water can pump it
directly from the source or divert from the Mary Rhodes Pipeline. The following wholesale
customers receive raw water: Alice, Beeville, Mathis, Robstown, and San Patricio Municipal
Water District (MWD). In addition, Celanese, and Flint Hills Resources receive raw water,
but are industrial, not wholesale customers. Those utilities/companies have their own water
treatment facilities. Other wholesale customers purchase the water from the City after it has
been treated at the O.N. Stevens Water Treatment Plant (explained in next section). These
customers include: Port Aransas, San Patricio MWD, South Texas Water Authority, and Violet
Water Supply.
2.3.2 Retail Customers
The remaining customers receive their water directly from the City. These retail customers
are billed individually. They receive their water after it has been treated at the O.N. Stevens
Water Treatment Plant.
2.4 Water Treatment Plant
The O.N. Stevens Water Treatment Plant, located in Calallen, is the only water treatment facility
for the City. All raw water is pumped directly to the Plant from either the Nueces River intake,
or via the Mary Rhodes Pipeline. In the Plant, Nueces River water is blended with water from
the pipeline and then treated to meet Texas Commission for Environmental Quality drinking
water standards. After being treated to potable standards, large pumps distribute water to the
6
City's distribution system and to its wholesale water customers.
Approximately 23 billion gallons of water are treated each year. The O. N. Stevens Water
Treatment Plant has a rated capacity of 167 MGD,well above the current peak summer demand
of around 100 MGD.
2.5 Distribution
The City has an extensive distribution network that transports water from the O.N. Stevens
Water Treatment Plant throughout the City to every customer, both retail and wholesale. The
Water Utilities Department operates five pumping stations and four elevated storage tanks and
maintains over 1,700 miles of potable water pipeline.
2.6 Master Meter
In order to keep track of diverted water, the City uses a series of Master Meters from its points
of diversion. The City itself uses meters to track water use from the Nueces River system and
Mary Rhodes Pipeline. In addition, City staff keeps monthly meter records of seven other
wholesale and industrial customers who divert raw water from City's water supply.
2.7 Wastewater Utility Profile
The Utility Profile, a detailed summary of the City's water and wastewater systems is included
in Appendix A.
3. Demand Profile
This chapter explains demands placed on the City's water supply system. Water demand is a
measure of how much water is being used. Knowing current demand is critical for the City's
daily operations. Projecting future demands helps City workers plan for future growth.
The region's population provides the basis of its water demands. Therefore, this chapter will
provide an overview of current population figures of Corpus Christi and the Coastal Bend
Region.
The water demands in the Coastal Bend area are complex because of the various customers
that the City serves. Besides its own retail customers in and around Corpus Christi, the City
provides wholesale water to utilities that serve 18 other cities and 2 businesses. These people
and businesses have their own unique water demands. In addition, there are other demands on
the supply system, including evaporation from the reservoirs and environmental inflows into the
Nueces Bay and Delta.
Because the demands on the supply system are so complex, the next sections are divided as
follows: Section 3.2 will discuss demands based on raw water diversions, or water taken directly
from the supply source. Section 3.3 will include evaporation and environmental inflows. Section
3.4 will discuss demand on treated water, or water that is consumed in the City. This section will
also look at demand based on customer type. Section 3.5 will discuss seasonal demand,
including summertime peaks. In Section 3.6, projected demands and populations will be
discussed.
3.1 Current Population
According to the Texas Demographic information the regional population's total customers was
close to a half a million people. The majority of this was in the City of Corpus Christi communities
with a population of 325,406. The other 20 that depend on Corpus Christi for their water and
their estimated 2020 populations are show in Table 3.1.
Table 3.1 Estimated 2020 populations for the communities and cities in the Coastal Bend
serviced by the City of Corpus Christi Water Utilities Department.
City Population (2020) I City Population (2020)
Alice 18,591 Kingsville 24,959
Agua Dulce 889 I Mathis 4,623
Aransas Pass 7,957 Odem 2,392
Banquete 389 I Port Aransas 4,277
Beeville 12,489 Portland 18,418
Bishop 3,006 I Ricardo WSC 648
Driscoll 745 Robstown 11,107
Fulton 1,601 I Rockport 10,969
Gregory 1,998 Taft 2,798
Ingleside 9,990 I Three Rivers 1,990
3.2 Raw Water Diversions
The raw water demand is the amount of water taken directly (diverted) out of the water supply
system. It provides demand information of the system and gives an overview of which entities
are using water. As explained in Chapter 2, the City has several raw water customers in
addition to diverting water for its own needs.
After raw water has been diverted from either the Nueces River System or Mary Rhodes
Pipeline, it is pumped to the O.N.S. plant. All raw water customers operate their own water
treatment facilities in order to comply with drinking water standards for their customers they
also each have their own demands, based on their retail customer characteristics (Treated
water demands are explained in Section 3.4).
In 2019, the total amount of raw water diverted from the City's water supplies was
103,984 acre-feet (approximately 33.9 billion gallons). This included water from both the
Nueces River System and the Mary Rhodes Pipeline. The raw water demands of each customer
from the Nueces River System are shown in Table 3.2.
8
Table 3.2 Raw water demands(diversions) in 2019 from Nueces River System by customer
(acre-feet and million gallons).
Raw Water Customer I Diversion Amount (ac-ft) I Diversion Amount(MG)
Alice 6,273 2,044
Beeville I 4,212 I 1,373
Mathis 802 261
Celanese I 1,486 I 484
Flint Hill Resources 3,658 1,192
San Patricio MWD I 11,503 I 3,748
Corpus Christi 30,409 9,909
Total 58,343 19,011
The raw water demands of the San Patricio MWD and the city of Corpus Christi from
Mary Rhodes Pipeline are shown below in Table 3.3.
Table 3.3. Raw water demand (diversions) in 2019 from Mary Rhodes Pipeline by Customer
(acre-ft and million gallons).
Raw Water Customer I Diversion Amount(ac-ft) I Diversion Amount (MG)
San Patricio MWD 10,794 3,517
Corpus Christi I 34,767 I 11,329
Total 45,561 14,846
In 2019, the City of Corpus Christi received 56% of its raw water from the Nueces River
System and 44% from the Mary Rhodes Pipeline.
Table 3.4 Raw water demand (diversions) in 2019 from Nueces River System, and Mary
Rhodes Pipeline by Customer(acre-feet and million gallons)
Raw Water Customer I Diversion Amount(ac-ft) I Diversion Amount(MG)
Alice 6,273 2,044
Beeville I 4,212 I 1,373
Mathis 802 261
Celanese I 1,486 I 484
Flint Hill Resources 3,658 1,192
San Patricio MWD I 22,297 I 7,265
Corpus Christi 65,176 21,238
Total ' 103,904 ' 33,857
9
3.3 Other Raw Water Demands
One uncontrolled demand of water placed on the supply system is evaporation. As mentioned
in Chapter 2, the two reservoirs of the Nueces River supply system cover a large surface area
of 45,186 acres when full. Because of this large area, combined with high
evapotranspiration rates, water loss to evaporation is high, especially in recent hot, dry
years.
Another raw water demand is environmental flow. After the impoundment of Choke Canyon
Reservoir in 1982, freshwater flowing in the Nueces River Delta decreased dramatically.
In order to maintain an ecosystem balance in the Delta, the City worked with TCEQ, the
Nueces River Authority, and the City of Three Rivers to develop an Agreed Order in 1995. This
document, revised in 2001, outlines required monthly freshwater inflows by the City into
the Delta (Table 3.5). The 2001 Agreed Ordered is included in Appendix B.
Table 3.5.Target Inflows to Nueces Bay from the 2001 Agreed Order(*When lake levels are
above 70%)
Month Target Inflows (ac-ft) I Month Target Inflows (ac-ft)
January 2,500 July 6,500
February 2,500 I August 6,500
March 3,500 September 28,500
April 3,500 I October 20,000
May 25,500 November 9,000
June 25,000 I December 4,500
3.4 Treated Water Demands
In 2019, the Corpus Christi Utility Business Office billed a total of 67,635 ac-ft (approximately
24 bil gal) of water, coming from the O.N. Stevens Water Treatment Plant in Calallen.
Separating treated demand by customer class, industrial customers represent the highest
demand. Of the 67,635 ac-ft billed usage in 2019, industrial customers used just over 33,000
ac-ft or 49 percent of the total. Residential customers consumed 21,610 ac-ft, representing
32 percent of the total. See Figure 3.5 below.
io
Figure 3.5.Treated Water Use by Customer Class
■ Residential • Institutional •Commercial • Industrial
In 2019, there was approximately 110,217 treated water connections. These connections can
be divided into the customer classes of residential, multi-family, commercial, industrial,
wholesale, and institutional. Figure 3.5.1. shows a breakdown of connections by customer type.
The total of institutional (1,307 connections) and industrial (31 connections) customers
constitute far less than the total for all connections. Residential Single-Family customers make
up the largest percentage of connections at over 90 percent.
Figure 3.5.1 Connections by Customer
• Residential • Institutional •Commercial •Industrial
11
3.5 Seasonal Demands
Seasonal demands by customers lead to "peak demands." These peak demands put the most
stress on operations, including distribution and treatment. It is extremely important that peak
demand for the cap remains under 167 million gallons per day, which is the maximum volume
that the O.N. Stevens Water Treatment Plant can treat. Figure 3.6 below shows daily treatment
plant production volumes for each month of 2019 as minimums, maximums, and averages.
The maximum values of each month (in green) represent the peak demand volume for that
month. Despite the fact that 2019 was a dry year, maximum production never reached above
100 MGD.
Figure 3.6. Daily production volumes of the O.N. Stevens Water Treatment Plant,showing seasonal
demand as minimums, maximums, and averages for each month of 2019.
> i00
2019 Finished Water
G
Min Daily Prod
1-5N 90 Max Daily Prod
c
0
, 80—Average Daily Prod
° 70
c— 60
c
0
50
0
a 40
I
O 10
0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
3.6 Projected Populations and Demands
The Texas Water Development Board estimates population projections for regional water
planning groups. For Corpus Christi, they estimate that the population could reach 403,638 by
the year 2060. This increase in population will result in an increase in water demand.
The TWDB estimates that municipal water demand (residential and commercial) for Corpus
Christi will increase 40% by 2060, reaching 86,962 ac-ft per year. These projections are for the
City of Corpus Christi only. Other cities that rely on Corpus Christi for water will also have
increases in population and demand, resulting in an even higher demand on the supply system.
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However, these projections only factor in a minor decrease in per capita water use from
conservation measures. A more aggressive conservation program could help municipal demand
level off or decrease, even with an increase in population. A goal of 1% annual reduction in
municipal consumption (greater than the 0.9% population growth) would defer the need for
additional supplies. This goal, along with others, is explained in Chapter 4.
Projecting industrial consumption, which comprises over 40% of the City's water use, is
challenging considering the large volumes that one additional customer can demand. The
Region N Water Planning Group projects treated industry water demand could increase by
5,422 acre-feet by 2060. Other industrial demands are expected to increase by 29,000 acre-
feet by 2060.
4. Goals
This Chapter explains the water conservation goals of the City. These goals are what the
City aims to achieve by the implementation of this Plan. Included in these goals are both
qualitative goals and measurable, quantifiable goals. Before these goals are discussed, the
first section (4.1) explains the benefits of conservation. This will give reason and justification
for the City's conservation efforts and provide a driving factor for the goals.
4.1 Benefits of Conservation
There are several benefits to having a strong conservation program for Corpus Christi. These
benefits not only include maintaining the City's water supply, but also include saving the City
and residents money by deferring capital expenses. Other benefits may be more difficult
to quantify or may take years to materialize, but that does not lessen their importance.
Each benefit of conservation listed below will help the City of Corpus Christi grow and thrive
at a sustainable rate. The benefits of conservation include:
• Sustainable Water Supply — By reducing per capita water use, the City can grow
without compromising supplies for future generations.
• Reduces Peak Demand — Peak demand puts the most stress on the Water Utilities
Department's operations. Conservation measures would help to reduce this peak
demand.
• Reduces Energy Costs — The City spends a significant portion of its electric bill
on moving water through its distribution system. Conservation would reduce the
amount of water pumped, thus reducing electric costs.
• Reduces Wastewater Costs — Less water being used by customers equals less
wastewater that needs to be treated. Having less wastewater will save the City
in treatment costs.
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4.2 Water Planning/Conservation Goals and Objectives
The main, overall goal of this Plan is to reduce total per capita consumption by one percent
annually over the next decade. This goal is based on the 2019 figure of 201 gallons per capita
per day (gpcd). A secondary related goal is to reduce summertime peak demand. To achieve
these goals, the City has specific conservation objectives which are:
• Reduce water loss by one percent annually
• Educate the public on water conservation practices
• Educate the public on the City's water resources
• Implement incentives and/or rebate programs to encourage conservation
• Convert certain drought restrictions into regular conservation measures
• Adopt new water conservation city ordinances
• Enforce the conservation city ordinances
• Strengthen conservation measures at City-owned facilities
4.3 Five and Ten-Year Quantifiable Conservation Goals
As mentioned in the previous section, the goal of the Plan is to decrease total per capita water
consumption by one percent each year. To track the progress of the goal, the City records
the gpcd every year and sets five and ten year goals. The gpcd is measured by taking the
volume of water produced by the O.N. Steven Water Treatment Plant, excluding water sold
to treated wholesale customers, and dividing it by the permanent population and then dividing
it by 365 days. Because industry uses close to 50% of the treated water, Corpus Christi's gpcd
is greater than most Texas cities. In addition, there is high variability in annual consumption
due to changes in weather. Residents tend to use much more water in dry years to keep
landscape vegetation alive. The total gpcd, residential gpcd, and water loss are show in
Tables 4.1-4.3 below. The five and ten year goals listed below in Table 4.4, and are based
on a 1% annual reduction from the 2019 consumption of 201 gpcd.
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Table 4.1.Total Gallons Per Capita Per Day(gpcd) in 2019
Total System Input in Gallons Water Total GPCD(System
Produced +Wholesale Imported -Wholesale Retail Population' Input/Retail
Exported Population)/365
23,980,034,792 326,554 201
Retail Population is the total permanent population of the service area,including single
family,multi-family,and group quarter populations
Table 4.2. Residential Gallons Per Capita Per Day(gpcd) in 2019
Residential Use in Gallons Residential GPCD(Residential Use/
(Single Family+ Multi-family) Residential Population2
Residential Population)/365
7,041,510,000 326,554 59
2Residential Population is the total residential population of the service area,including
only single family and multi-family populations
Table 4.3.Total Water Loss Per Capita Per Day(gpcd) in 2019
Total Water Loss in Gallons Apparent+ Retail Population L GPCD3 Water Loss
Real=Total Water Loss Wateross
Percent
1,770,594,834 326,554 15 7.38%
3(Total Water Loss/Residential Population)/365=
Water Loss GPCD(Total Water Loss/Total System
Input)*100=Water Loss Percentage
Table 4.4.Targets and Goals
Achieve Target for Current Target for Current Target for Current Water Target for Current Water
Date Total Total Residential Residential Water Loss Loss GPCD Water Loss Loss
GPCD GPCD GPCD GPCD GPCD Percentage Percentage
Five-year
Target Date 195 201 60 59 13 15 6.67% 7.38%
2024 _
Ten-year
Target Date 184 201 56 59 12 15 6.52% 7.38%
2029
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4.4 Schedule for Implementing Plan
In order to achieve the targets and goals of the plan, the City will use the schedule below
in Table 4.5 to gradually introduce new or strengthen existing conservation measures and
programs. These programs will utilize all and possibly additional measures as detailed
in Chapter 5. The measures aim to reduce per capita water use through changes in habit,
improvements in efficient devices, decreases in water waste, and smart planning. This
schedule is not all inclusive and is a living document and is therefore subject to change.
Conservation Measures Purpose Target Date
Plumbers to people Reduce leaks in homes of lower income residents Planning
School education Educate youth about water resources and the Ongoing
importance of conservation
Public information Educate the public about water conservation Ongoing
through several media outlets
Xeriscape education Educate the public about Xeriscaping through the Ongoing
Xeriscape garden,fliers and the annual
symposium
Use of Reclaimed Water Reduce potable demand by increasing the Ongoing
number of golf courses parks etc.that are using
reclaimed water for irrigation
System Water Audit Identifying areas of water loss to target Annually
and Water Loss remediation efforts
Park Water Reduce consumption by the City by improving Ongoing
Conservation irrigation
Prohibition on wasting Reduce consumption by prohibiting the wasting Ongoing
water of water regardless of drought conditions
Irrigation Timing Reduce evaporative loss and waste by prohibiting Ongoing
sprinkler irrigation between 10am and 6pm
regardless of drought conditions
Restaurant water saving Reduce water waste by requiring restaurants to Ongoing
only serve water upon request
Rainwater harvesting Reduce potable demand by encouraging Ongoing
rebate rainwater harvesting
Changes to Unified Make change in the UDC to include certain Ongoing
Development Code requirements in new construction for rainwater
harvesting condensate collection car washes
cooling towers, laundry facilities and site
appropriate turf grass
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5. Water Conservation Practices
Water conservation is any practice that reduces the use of water, whether through changes
or improvements in the efficiencies of water devices. Reducing the use of water reduces
the stress placed on water supplies and their ecosystems. It also frees up water supplies
to allow for population and economic growth without having to search for "new" water.
Conservation is a cost-effective and commonsense approach to ensuring a sustainable water
supply for generations to come.
The City has a long-standing commitment to promoting water conservation in the community.
It has adopted several practices, ranging from public education to conservation pricing,
that encourage a reduction in excessive water use. As was mentioned in Chapter 4 (Goals),
the long term goal of the conservation program is to reduce per capita water use by one percent
per year over the next decade. This Chapter highlights all of the ways that the City intends to
reach that goal.
Chapter 5 begins with conservation measures (5.2). These are regulated best-management
practices that are in effect year-round, regardless of the drought condition or the levels of
the City's reservoirs. Section 5.3 explains planned changes to development and building codes
that would make buildings and landscapes more water efficient, while Section 5.4 explains
the current code related to landscaping. Section 5.5 explains Rebates and Incentives, which
include Plumbers to People, Rainwater Harvesting Rebate, and an Irrigation Consultation
Program. Section 5.6 discusses City-led Programs, including reclaimed water use,
improvements to City-Owned properties, park water conservation, metering, system audits,
and a water conservation staff. This is followed by Section 5.7 which highlights the
educational efforts by the City, including both schools and public programs, and Section 5.8
on water conservation pricing. The last two parts of Section 5 explain coordination with the
Region N Water Planning Group, methods to monitor the effectiveness of the various
conservation practices, and means of implementation and enforcement.
5.1 Water Conservation Measures
As water demands increase and water supplies become less available, it is critical that water
conservation measures become regular, year-round best management practices. They are
common sense approaches that reduce water waste and improve efficiency. This section lists
those water conservation measures that are regulated and enforceable. They are the only
measures in the WCP that are enforceable. The Water Resource Management Ordinance
(Section 55) gives the City the authority to enforce these measures and is included in Appendix
A. Explanations of each of these conservation measures are shown in the next page.
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5.2.1 Prohibition on Wasting Water
Under the Prohibition on Wasting Water Conservation Measure, it is unlawful to
wastewater. Actions leading to the wasting of water are prohibited and will be enforced.
No person shall:
1. Allow water to run off property into gutters or streets.
2. Permit or maintain defective plumbing in a home, business establishment or
any location where water is used on the premises. Defective plumbing includes out-
of-repair water closets, underground leaks, defective or leaking faucets and taps.
3. Allow water to flow constantly through a tap, hydrant, valve, or otherwise by
any use of water connected to the City water system.
4. Use any non-recycling decorative water fountain.
5. Allow irrigation heads or sprinklers to spray directly on paved surfaces
such as driveways, parking lots, and sidewalks in public right-of-ways;
6. Operate an irrigation system at water pressure higher than recommended,
causing heads to mist, or to operate with broken heads.
5.2.2 Irrigation Timing
Landscape irrigation is most efficient during early-morning or nighttime hours, when there is
less potential for evaporation from the sun. This conservation measure prohibits irrigation by
spray or sprinklers between the hours of 10 am and 6 pm. It is still permissible to water by
hand or by drip irrigation at any time of the day.
5.2.3 Restaurant Water Saving
Under this conservation measure, commercial dining facilities must only serve water upon
request. In addition, any hand-held dish-rinsing wand must have an automatic shut-off.
5.2.4 Conservation Measures
When the combined storage in the Choke Canyon/Lake Corpus Christi reservoir system falls
below 40% of the total system storage capacity, the City of Corpus Christi shall issue public
notice advising and informing the water users of the region of voluntary conservation
measures that are requested immediately and required drought management measures to
be taken should the Reservoir System Storage fall to under 40% and/or 30% of the total
system storage capacity.
5.3 Future Updates to Codes
Additional water conservation practice that will help to conserve water in the long term is
updates and improvements to codes. The City has adopted several codes for development and
construction, which are updated on a regular basis. There are several codes which could be
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updated or amended to include requirements for water conservation. A list of potential updates
to codes is included below. The process of updating these codes is ongoing and will be included
in the WCP as an amendment when complete. These bulleted items are proposed updates only
and are listed here as a placeholder.
• Car Wash Water Conservation — Many commercial car washes in the region do not
recycle water in their operations. Under this proposed measure, new car washes using
an automatic system would need to reuse a minimum of fifty(50) percent of water from
vehicle rinses in subsequent washes. All car washes that are self-service would be
required to have spray wands that do not emit more than three (3) gallons of water
per minute.
• Water Saving Plumbing Fixtures—This proposed conservation measure would
require plumbing fixtures to meet or exceed the standards set by the WaterSense
label of the Environmental Protection Agency (EPA). The fixtures would include
gravity flush toilets, bathroom aerators, showerheads, and urinals. This measure
would apply to new plumbing installations
• Laundry Facility Conservation — Under this proposed measure, any new
installation of a coin-operated washing machine would have to meet or exceed the
standards for the most current Energy Star label of the EPA and Department of
Energy. This measure applies to any location that may have a coin operated facility,
such as laundromats, apartment communities, or university residential buildings.
• Cooling Tower Recycling—This proposed conservation measure would require
newly constructed cooling towers to utilize recycled water for a minimum of four(4)
cycles.
• Rainwater Harvesting—This proposed conservation measure would require any new
building construction with a minimum roof surface area of ten-thousand (10,000)
square feet to install a rainwater collection system. The stored water could be used for
non-potable indoor use and/or outdoor irrigation.
• Condensate Collection —Under this proposed measure, any new commercial
building with an air conditioning system would be required to divert and collect the
condensate water. This water could be used in cooling tower operation or landscape
irrigation.
• Xeriscape Landscaping —This proposed measure would allow xeriscaping as an
option for landscaping in any residential neighborhood or subdivision, regardless of
deed restrictions. It also would require homebuilders and/or developers who are
constructing new, single-family residential homes to offer a xeriscaping option.
• Turfgrass Species Requirement—This proposed conservation measure would
promote the use of turfgrass appropriately suited for a particular site in order to save
on irrigation water. For any new construction, the turfgrass species/variety installed
on a property would have to be chosen from a list of approved species. In addition,
irrigated turfgrass would not be able to exceed 50% of the landscaped area.
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5.4 Landscaping Standard
The City adopted a Landscaping Standard as part of its Unified Development Code (Section
7.3 of the UDC). This standard requires landscape plantings within commercial developments
to enhance the beauty of the City. The ordinance assigns points to the various plant materials.
To encourage the use of water-wise landscaping, drought-tolerant and low-water-use species
are assigned a higher point value. To comply, a landscape design must surpass an
established threshold number of points, which is achieved more easily with the water-wise
and drought- tolerant plants.
5.5 Rebates and Incentive Programs
This section explains the programs that the City offers or plans to offer to provide assistance to
customers who wish to implement water conserving practices. These programs include the
Plumbers to People program and is planning an Irrigation Consultation Program. Additional
rebate and incentive options are being researched.
5.5.1 Plumbers to People
Plumbers to People would be an affordability program to provide plumbing assistance to
low- income residential customers seeking to repair plumbing fixtures in their homes. The
intent of the program is two-fold: (1) to eliminate the cycle of uncollected high water bills
resulting from water leaks; (2) to promote water conservation.
Persons eligible for the program must contact the Utility Business Office (UBO) to
identify their eligibility for the program. Eligibility is based on the individual's income
limits and need for assistance.
The UBO office arranges for a contracted plumber to do repairs at the individual's
home. The plumber will fix minor leaks or other issues, then send a report and invoice
back to the UBO office.
5.5.2 Rainwater Harvesting
The City has developed a rainwater harvesting program. Under this program, customers of
the Water Utilities will be eligible to purchase a rain barrel from the City.
5.5.3 Irrigation Consultation Program
The City plans to develop an Irrigation Consultation Program to reduce water waste and
improve efficiency on large, existing irrigation systems. The service will be free to commercial
sites and would provide feedback to property owners about how they can make meaningful
changes to their irrigation system. It would begin with a consultation request from the
property owner of a large irrigation system. The Water Utilities Department will coordinate a
consultation with a contracted, licensed irrigator for that property. The licensed irrigator would
perform a thorough inspection of the irrigation system's performance.
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A report with recommendations would be provided to the property owner and the Water
Utilities Department. The recommendations may include ways that the property owner can
drastically reduce water consumption. The Water Utilities Department will analyze each report
and may provide assistance with the recommended changes, depending on the cost and
benefits. One year after the inspection, a follow-up would be performed to see if
recommendations were implemented and determine how much water consumption was
decreased.
5.6 City-led Water Conservation Programs
This section explains the programs that the City has initiated in order to improve its own efficiency
and promote conservation. These programs include the use of reclaimed water, improvements
in City-owned properties, park water conservation, accurate water metering, and a system to
audit water loss. It also includes the use of a permanent, full- time water conservation staff.
5.6.1 Use of Reclaimed Water
Reclaimed water by definition is, "domestic or municipal wastewater which has been treated
to a quality suitable for a beneficial use, pursuant to the provisions of this chapter and other
applicable rules and permits"(30 TAC§210.3(24)).The City currently has five reclaimed water
use customers and recognizes that the direct use of reclaimed water is an effective method
of reducing potable water usage. Corpus Christi reclaimed water is used primarily for irrigating
recreational tracts.
Historically, Corpus Christi began its reuse program in the early 1960s when it began
delivering reclaimed effluent to its first customer, the Gabe Lozano Golf Course. Over the
next several decades, the City acquired additional reuse customers which include other
golf courses, parks, and recreational areas.
In 2019, the City supplied 5 million gallons of reclaimed water to its irrigation
customers, saving 100% of the amount in potable water.
To facilitate future expansion of its reuse program, the City will identify and rank industrial,
commercial, and institutional (ICI) customers according to volume of water use, and
investigate the feasibility of using reclaimed water. The City will also investigate reuse
opportunities within its own accounts or with third parties outside its service area. The City
owns several public areas that are candidates for reuse.
5.6.2 Improvements in City-owned Properties
In order to be a representative of its conservation message, the City has pushed for increased
Xeriscape landscaping of City-owned properties. This includes water-wise landscaping at the
Water Utilities Department building, and the Xeriscape Design Garden and Learning Center
adjacent to the Museum of Science and History in downtown Corpus Christi (see Section
5.6.3). The Water Utilities Department will encourage the future conversion of City
landscaping to more water-wise design.
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In addition, the City has been proactive in replacing out-dated, inefficient plumbing fixtures in
its buildings. The City plans to install a rainwater harvesting system at the Water Utilities
building to be used for on-site irrigation.
5.6.3 Identifying and Repairing Leaks
The Water Utilities Department has a full team of employees committed to identifying and
repairing leaks in the water distribution system throughout the City. A crew of round-the-clock
responders follow the procedure below to find and fix a leak:
1. The initial responder, called a first responder is sent to the location to identify
and mark the priority of the leak. Response time can be 30 minutes to an
hour.
2. On site crews may need to close valves to isolate the leaking line. Line locates
are called in to mark all other utility lines in the area of the leak prior to repairs.
Depending on the severity of the leak these locates can take up to approx. 24
hours
3. After line locates are complete, Distribution Leak crews respond to the leak and
make all needed repairs.
4. After repairs are complete, the dirt and dressing crews back fill the area and
replace grass as needed.
5.6.4 Park Water Conservation
The City of Corpus Christi Parks and Recreation Department manages golf courses, large
City-wide parks, recreation centers, decorative fountains, public swimming pools, and close
to 200 neighborhood parks, some with irrigated athletic fields.
Because many of the parks in the City require irrigation, it is critical that proper conservation
measures are in place so the City demonstrates and promotes those measures to the
public. The Water Utilities Department works with the Parks and Recreation Department to
implement several water conservation practices within the park system. Some of these
measures include:
1. Converting manual irrigation systems to automatic irrigation systems.
2. Including the park properties in the water system audit.
3. Voluntarily adopting landscape ordinance provisions of the Corpus Christi Zoning
Ordinance (explained in Section 5.2.12).
4. Replacing several spray irrigation heads with drip irrigation.
Some of the conservation measures that the City is pursuing for the future include:
1. Updating automatic irrigation systems with a "smart" Baseline Controller, which
can remotely control up to 50 irrigation zones with 10 different programs. These
include moisture sensors in the soil.
2. Implementing an irrigation consultation program to target specific areas where
water efficiency improvements can be made.
3. Converting turfgrass species to more appropriate varieties to reduce water use.
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To track the progress of water conservation in the parks, the Water Utilities Department
will gather the following:
1 . Water savings resulting from the offset of potable water use by irrigating with
reclaimed wastewater.
2. Water savings attributable to the repairs of leaks
3. Changes to irrigation systems, retrofits, or upgrades; regular leak detection;
maintenance policies, and estimated water savings from conservation practices.
4. Estimated water savings attributable to changes implemented.
5. Costs of repairs, equipment upgrades, or new equipment installed.
The Water Utilities Department will evaluate data from sites before and after significant
irrigation system changes or upgrades. The City maintains performance measure software
to monitor the progress of leaks repaired. The Maximo software will identify individual
categories to estimate the volume of water savings attributable to repairs of leaks.
5.6.5 Metering All Connections
Metering is a critical aspect in water conservation. It provides a method for customers to relate
their water usage to their utility bill. For the City, meters help keep track of water use in order
to target areas of inefficiency or locate areas where there may be potential leaks. New
technology allows the city to track water use remotely and alert employees when there are
spikes in water use among customers.
The following elements are part of the City's on-going metering program:
1. Required metering of all connections.
2. A policy for installation of adequate, proper-sized meters as determined by a
customer's current water use patterns.
3. Direct utility metering of each duplex, triplex, and four-plex unit, whether each is on
its own separate lot or there are multiple buildings on a single commercial lot.
4. Metering of all utility and publicly owned facilities.
5. Use of construction meters and access keys to account for water used in new
construction.
6. Implementation of the State requirements in HB 2404, passed by the 77th
Legislature Regular Session and implemented through Texas Water Code 13.502,
which requires all new apartments be either directly metered by the utility or
submetered by the owner.
7. Regular replacement of 5/8" and 3/4" meters after 15 years of service.
8. An accounting of water savings and revenue gains through the implementation of
the Water Utilities Department's meter repair and replacement procedures.
Each year the Water Utilities Department estimates its annual water savings from the
program. Savings can be estimated based upon a statistical sample analyzed as part of
the meter repair and replacement program.
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The City maintains a meter replacement policy based upon a customer's concern about the
accuracy of their meter. Annual records of replaced meters are maintained through the
City's Maximo software. Meter replacement takes precedence over meter repair due to the
cost of repairing old meters. The City has improved efficiency and cut water loss by purging
old meters and converting standard meters to automated meter reading (AMR.). The
AMR program is a metering system that remotely records usage and accurately integrates
that data into the billing system. Around 99 percent of the City's water meters have been
installed with the AMR, benefiting the City by improving meter accuracy and reducing the
cost of reading meters manually.
5.6.6Record Management
The City has a system of record management to classify customers by sector for billing
purposes and to keep track of water consumption by class. The billing system has the ability
to categorize customers into sectors that can be summarized into those required by the Texas
Water Development Board and the Texas Commission on Environmental Quality. These
sectors include: residential (including single-family and multi-family); commercial; institutional;
industrial; and wholesale (the City does not have any agricultural customers).
5.6.7System Water Audit and Water Loss
As with any aging infrastructure system, the City does have water loss between the
treatment plant and the point of use. In order to reduce this water loss, the City performs an
annual system water audit. This estimate of system water efficiency is achieved by
comparing the quantity of water delivered to the treatment plant, potable water produced,
and water sold. The Water Utilities Department tracks numerous leak detection and repair
activities and is able to evaluate its success using the asset management software to compile
and track work orders. Using this data from the audit, the City is able to focus on specific
areas where improvements in efficiency can be achieved.
5.6.8 Water Conservation Staff
The Water Utilities Department has two staff members who coordinate and implement
water conservation programs for the City and its service area. These employees include
the Water Resource Manager and the Utilities Compliance Superintendent. They are critical
to ensuring the success of the City's overall conservation program.
The Water Resource Manager is responsible for planning conservation programs; public
relations; seeking and identifying new opportunities in conservation and water supply;
program analysis; contributions as a member of regional workgroups(BBACS, GMAs, Region
N, Nueces Feasibility, CCASRCD); assistance with educational/promotional material;
planning Irrigation Consultation Program; meetings with stakeholders; assistance with
marketing strategies for conservation programs; assistance with annual conservation
budget; preparation and submittal of annual conservation status reports to Water Utilities
Department management.
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The Utilities Compliance Superintendent is responsible for implementing conservation
programs; conservation education and marketing; coordinating with other departments and
wholesale customers; coordinating programs within the Water Utilities Department;
development of marketing strategies for conservation programs; management of
consultants, and contractors, when appropriate; preparation of annual conservation budget.
This conservation team takes part in several educational events and programs, which are
explained in detail in section 5.7.
5.7 Education
One of the most effective ways to improve conservation and water-use efficiency is through
education. The Water Utilities Department is very active in educating its customers and has
several programs to do so. The Water Utilities Department has two purposes for its educational
programs: to disseminate information and to change behavior. Information dissemination is
education that makes the public aware of something timely, such as a current drought stage
and its implications. A change in behavior occurs when education teaches the public practices
that should be permanently adopted. Behavioral changes take place over a longer span of time
than information dissemination, but both purposes are critical to a well-informed public.
This section highlights the educational programs that the Water Utilities Department plans,
manages, and implements. These programs include school education, public information, and
the water- wise landscape and conservation program.
5.7.1 School Education
School education programs increase the viability of water conservation efforts, enhance the
utility's public image, contribute to the attainment of Texas state education goals by students,
and increase customer goodwill. The message conveyed by students to their families based
upon greater knowledge of water sources and conservation can lead to behavioral changes
resulting in both short- and long-term water savings.
The Water Utilities Department offers various educational programs to all grade levels
throughout the City of Corpus Christi. These programs include:
• Learning to be Water Wise — This program is used in 5th grade classrooms to
connect science, math, language arts, and social studies with water
conservation activities. Boxed kits, which include a toilet water displacement
bag, toilet leak detector tablets, showerhead and faucet aerators, and
instructions for repairing common toilet leaks, are given to each student.
• Water Source Book — The Water Source Book, developed by the Water
Environment Federation, reinforces water resource issues with hands-on
classroom activities and experiments for grades 6 through 8. The classroom
activities feature water, wastewater, and stormwater experiments. This book is
provided by the City to all local school resource libraries. Continuing education
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workshops introduce local classroom teachers to the Water Source Book.
Teachers can utilize this teaching aid to satisfy certain TEKS objectives as
established by the Texas Education Agency.
• Coastal Bend Teacher Resource—the City Water Utilities Department sponsors
events, which brings environmental resources to teachers throughout the Texas
Education Agency Region 2 area. The City Water Utilities Department also
participates in annual event, offering valuable opportunities and resources for
teachers, students and the general public.
• Xeriscape Learning Center and Design Garden — Adjacent to the Corpus Christi
Museum of Science and History, Water Utilities has an educational gazebo
targeted to children, featuring various showcases and an 8-foot interactive
topographic map of the Nueces River Basin. The touch of a button activates
lights and sound to explain the area's water resources. Displays throughout
the Xeriscape Learning Center and Design Garden are used as teaching tools
for children and adults.
• Other educational materials — The Water Utilities Department keeps a stock
of Splash Activity Book, My Book About Water and How to Use it Wisely, and
The Story of Drinking Water. Spanish material is also available upon request.
The Water Utilities Department continues to offer the programs mentioned above, being sure
to stay up-to-date on any changing information related to water. They also continue to stay
connected to local schools in order to identify any new potential opportunities.
To keep track of the impact of these various programs,the Water Utilities Department records:
• The number of presentations made
• The number and type of curricula materials developed and/or provided
• The number and percent of students reached by presentations and by curriculum
• Annual budget related to conservation.
5.7.2 Public Information
The Water Utilities Department employs several types of media resources and modes of
mass communication to present a compelling and consistent message about the importance
of conservation and water use efficiency. The overall goal of the public information
program is to raise awareness among customers of the regional water resources and the
importance of conservation. The public information is also used to convey urgent
messages, such as those about drought or emergencies. Each year, the Water Utilities
Department mails a Consumer Confidence Report to every customer. This report is available
online to anyone including new customers. It explains water quality and provides details
to customers where they can get more information on water conservation.
The Water Utilities Department employs the following methods to raise water resources
awareness and to instill the importance of conservation in the community:
26
• Multi-tiered media campaign — Annual television, radio, and print campaigns
promoting water use efficiency. Agreements with radio and television stations
provide for matching airtime for each ad purchased by the City.
• Billboard advertisement — Ads on billboards, bus benches, and other public
spaces are used to promote water conservation and water quality.
• Website — The department's Water Conservation website includes tips on
outdoor and indoor conservation, Xeriscape landscaping, irrigation
regulations, and educational materials for youth.
• Printed brochures — The City provides the public with printed brochures on
various topics ranging from Xeriscaping to indoor water conservation. They are
produced by several entities, including the Water Utilities Department, the
Texas Water Development Board, and Texas A&M AgriLife Extension and
are available at multiple City locations and programs.
• School Education — Programs targeted to grade schools.
• Xeriscape Learning Center and Design Garden —As part of the Corpus Christi
Museum of Science and History, the Xeriscape Corpus Christi Steering
Committee, in partnership with the City, maintains a Xeriscape demonstration
garden with more than 100 plant varieties. Within the garden an educational
gazebo, The Water Story Exhibit, showcases an 8-foot interactive topographic
map of the Nueces River Basin. A second gazebo named the Learning Center
features practical landscape ideas and photographs. Educational Walk 'n' Talk
Tours are held annually to enhance public education.
• City Call Center and Request Line—The City's Call Center (361 826-CITY) was
created to encourage customers to report water line breaks and to request
service calls. Customers may also utilize a dedicated Water Hotline number(361
826-1600) to request water conservation kits and other information.
To track the progress and effectiveness of this educational effort, the Water Utilities
Department tracks the following information when possible:
• Number of activities, pieces of information distributed, and number of
customers at an activity or program;
• Number of public school children who received instruction in water resources or
water conservation;
• Number of news programs or advertisements that featured the water
conservation message and how many customers had the opportunity to receive
each message;
• Total budget by category for public information; and
• Results of annual or biannual customer survey and/or focus groups to
determine the reach and impact of the program.
Water savings due to public information efforts are difficult to quantify. Water savings for
other public information programs that result in specific actions by customers, such as
changes in irrigation scheduling or reduction in water waste occurrences, may be quantified
through surveys or analysis of water waste reporting in future years.
27
5.7.3 Water-Wise Landscape Design and Conservation Program
The use of water for outdoor irrigation can often account for over 50% of a customer's
consumption. The purpose of this program is to decrease both peak summertime water
consumption and overall water use through the installation of water-wise landscapes at
residential and commercial properties, and through improved efficiency of existing
landscapes. Water-wise landscaping involves not only plant selection, but continued
attention to appropriate irrigation and landscape maintenance. The program is
multifaceted, implemented through a landscape standard (Section 5.4), school education
(Section 5.7.1), public outreach (Section 5.7.2), and city-implemented measures (Section
5.6).
Below are some public-outreach programs explained in more detail that specialize in
water-wise landscaping or emphasize the importance of using less outdoor water.
• Xeriscape To-Go: Planning and Designing a Gardener's Dream—This brochure,
available in both print and online and was designed to educate local residents
on how to design and maintain a water-wise garden. It features a list of plants
suitable for the Coastal Bend and an explanation of the seven principles of
Xeriscaping.
• Purple Water-Wise Plant Labels— A brochure produced in cooperation with
Xeriscape Corpus Christi, commercial nurseries, and Texas A&M AgriLife
Extension to bring public awareness to lists of plants that are proven performers
in the Coastal Bend since 2004. Water-wise plants are labeled with purple tags
at commercial nurseries for easy identification. Purple labels are affixed to
water- wise and drought-tolerant plants offered at retail nurseries.
To encourage the seven principles of Xeriscape landscaping, the non-profit organization,
Xeriscape Corpus Christi, was formed. The organization built and maintains a demonstration
Xeriscape garden at the Museum of Science and History. The steering committee's
members include the City of Corpus Christi Water Utilities Department, Public Works
Department, Park and Recreation Department, Nueces County Master Gardeners, and
Texas A&M AgriLife Extension of Nueces County.
5.8 Water Conservation Pricing
One of the most effective methods to influence water consumption is through changes in price
structure. Water conservation pricing is a type of structure that promotes conservation by
making the water rate higher as consumption increases. Another term for this type of structure
is increasing block rate. The City has an increasing block rate structure for residential customers
which is not "promotional." It ensures that residents receive their most basic needed water at
a reasonable price, which covers the fixed costs of the Water Utilities Department. They
are billed on actual metered water use. As consumption goes into discretionary amounts, the
price per gallon increases, resulting in a higher bill. A copy of the current water rate structure
28
is attached as Appendix C.
At least annually, the Water Utilities Department staff will review consumption patterns
(including seasonal use) and the income and expense levels to determine if the conservation
rates are effective. They then make appropriate, regular rate structure adjustments as
needed. In the past, such studies resulted in an elimination of the decreasing block rate for
industrial accounts and increasing block rates for residential customers. In order to further
encourage conservation, the Water Utilities Department will examine the follow potential pricing
measures:
1. Seasonal rates to reduce peak demands during summer months.
2. Increasing block rates for other customer classes.
3. Restructuring of commercial rate structure to an increasing block rate.
The successful transition to a new rate structure will include public input and a process
to educate the community about the new rate structure. Public involvement in the
development and implementation of conservation rates helps to assure that the goals of the
conservation pricing initiatives are met and accepted by local constituents. Public meetings,
advisory groups, and public announcements are among ways to generate public involvement.
5.9 Coordination with Region N (Coastal Bend) Regional Water Planning Group
The service area of the City of Corpus Christi is located within the Coastal Bend, designated
as Region N Planning area, and the City has provided a copy of its Water Conservation
and Drought Contingency Plan to the Coastal Bend Regional Water Planning Group (RWPG).
The Region N Planning Group was initially appointed by the Texas Water Development
Board (TWDB), under the authority of Senate Bill 1, and includes representatives from 12
interests including the public, counties, municipalities, industries, agriculture, the
environment, small businesses, electric-generating utilities, port authorities, river authorities,
water districts, and water utilities from across the region. This Plan is consistent with the
City's role as a leader in water supply planning in Region N, and meets the standards for water
conservation planning in TAC Chapter 288.
5.10 Method to Monitor the Effectiveness of Conservation Measures
The best way to monitor to the effectiveness of the conservation measures of this chapter is
to track the per capita water use. As was mentioned in Chapter 4, the goal of this Plan is to
reduce per capita water use (gcpd) by one percent each year over the next decade.
Successful water conservation measures will result in a reduction of that per capita water use.
Because water use can vary each year due to weather conditions, the City will consider
rainfall amounts when analyzing water use.
5.11 Means of Implementation and Enforcement
This Water Conservation Plan was approved by the Corpus Christi City Council on September
29, 2020. The passage of this WCP provides the Water Utilities the authority and guidance to
implement the included conservation measures and programs.
29
The Water Resource Management Ordinance provides the legal authority for the City of Corpus
Christi to enforce certain conservation measures and all drought contingency measures.
A copy of the Water Resource Management Ordinance (Section 55) is attached as a
supporting document.
5.12 Reservoir System Operating Plan
Because all customers rely on the reservoir systems for their supplies, they are subject to
the Reservoir Operating Plan. A copy of this is included in Appendix D.
6. Wholesale Customer Conservation
6.1 Introduction
The City of Corpus Christi serves four wholesale customers with treated water and seven
wholesale customers with raw water. As part of the Water Conservation Planning Process, it
is important to keep customers informed of the City's decision making processes.
This chapter explains the conservation goals that the City encourages its wholesale customers
to adopt. Although wholesale customers outside of the city limits are not legally bound by the
ordinances of Corpus Christi, the City requires wholesale customers to adopt conservation
measures outlined in the Plan. It helps to ensure the region's water security and also ensures
that customers, both inside and out of the City, are treated equitably. Section 6.5 explains
the contractual requirements between the City and its wholesale customers.
6.2 Wholesale Customer Targets and Goals
The best way to reduce water waste and increase conservation is to set targets and goals.
As mentioned in Chapter 4, the City of Corpus Christi has set a water conservation goal of one
percent annual reduction in consumption which translates to 184 gpcd in 2029. The City, though
it has no authority to require it, suggests to each of its wholesale customers to achieve a one
percent annual reduction in consumption. The Coastal Bend Regional Water Planning
Group recommends consumption reductions as shown below in Table 6.1. The gpcd of
wholesale customers is shown with 5- and 10-year consumption goals. Though the group's
targets are not as aggressive as the City's, they still help in conserving the region's water
supplies.
30
Table 6.1 Wholesale Customer Consumption and Goals of Regional Water Planning Group
(gcpd)
Wholesale Customer 5—Year Goal 10—Year Goal
Alice Water Authority 176 173
Beeville Water Supply 110 100
District
Nueces County WCID 396 376
4(Port Aransas)
San Patricio Municipal 141 134
Water District
South Texas Water 145 140
Authority
6.3 Metering, Monitoring, and Records Management
The City meters all water diverted from the raw water supply to its wholesale customers.
The City also meters all treated water delivered to its wholesale customers. By contrast,
these meters are calibrated on a semiannual basis, and must be accurate within 2 percent.
The meters are read on a monthly basis for billing purposes.
A summary report is prepared, which aggregates all meter readings from wholesale raw water
meters, wholesale treated water meters, and all retail customers, as well as the readings
from the meters at the intake to the O. N. Stevens Water Treatment.
6.4 Leak Detection and Repair
The treated water wholesale customers are supplied from portions of the City's distribution
system. The meter location is the point of sale at which the water enters the customer's system.
From there, it is the customer's responsibility to operate and maintain. The portions of the City's
distribution system that serve these wholesale customers are subject to the same leak detection
and repair program described Section 5.4.5, System Water Audit and Water Loss.
All raw water delivery systems to the wholesale customers are owned and operated by those
customers. Therefore, they are responsible for any leak detection and repair programs as
well as for unaccounted-for water. Wholesale customers are encouraged to voluntarily report
their results to the City in order to promote cooperative efficiency efforts. In addition, wholesale
customers are encouraged to keep their water loss rates below ten percent.
6.5 Contractual Requirements
The City has raw water contracts with various wholesale customers including: Alice Water
Authority, Beeville Water Supply District, City of Mathis, and San Patricio Municipal Water
District. The city also has wholesale contracts for treated water which
include Nueces County Water Improvement District No. 4 (Port Aransas), San Patricio
31
Municipal Water District, South Texas Water Authority, and the Violet Water Supply
Corporation. Industrial wholesale customers include Celanese and Flint Hills Resources. All of
these contracts contain language related to water use restrictions in drought situations. Each
contract has a section requiring the customer to accept reduced volumes in the event of
shortages in supply, whether due to natural or unforeseen circumstances which prevent
the City from delivering the water. With the exceptions of the Beeville Water Supply District
and San Patricio Municipal Water District contracts, the contracts further stipulate that should
there be a shortage in the basic supply of water which requires the restriction or curtailing
of any consumer of water within the city limits of Corpus Christi, that the wholesale customer
shall limit and restrict all of its customers to the same extent.
The San Patricio Municipal Water District has the discretion to either implement water
conservation and drought measures similar to those imposed by the City or to reduce the water
it takes from the City's water supply system. If the district elects to reduce the amount of water
it takes from the City's water supply system, the reductions are based on the average
deliveries for the same month of the year over the three previous years. The percent of the
reduction is based on the available water in the City's reservoir system. The required
decrease in the amount of water that can be taken is 10% when the reservoirs fall below
40% (Stage 1), 20% when the reservoirs fall below 30% (Stage 2), 30% when the reservoirs
fall below 20% (Stage 3), and Stage 4 would be an emergency condition such as a system
outage or contamination event separate from lake levels. The San Patricio Municipal Water
District contract includes provision for year-round conservation. As the need to renegotiate
other contracts arises, the City will include contract language requiring conformance with
applicable state and federal regulations concerning water conservation.
The City will require in every wholesale water supply contract entered into or renewed after
official adoption of this Plan (by either ordinance, resolution, or tariff), including any contract
extension, that each wholesale customer develop and implement a water conservation plan
and drought contingency plan or water management measures using the applicable elements
in this Plan and City's Drought Contingency Plan (City Ordinance 55-151). If the customer
intends to resell the water, the contract between the initial supplier and customer must provide
that the contract for the resale of the water must have water conservation and drought
contingency requirements so that each customer in the resale of the water will be required to
implement water conservation measures and drought contingency measures in accordance
with the provisions of this Plan and the Drought Contingency Plan.
32
Appendix A
Texas Water
DareloMnent Board
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
CONTACT INFORMATION
Name of Utility: City of Corpus Christi
Public Water Supply Identification Number(PWS TX1780003
ID):Certificate of Convenience and Necessity 10554
(CCN)Number: Surface Water Right ID Number: 1947,2345,2464-A,3214-C,5434-F,5655,5736
Wastewater ID Number: 20207
Contact: First Name: Maria Last Name: Corona
Title: Utilities Compliance
Superintendent
Address: 2726 Holly Rd City: Corpus Christi State: TX
Zip Code: 78413 Zip+4: Email mariacr(a)cctexas.com
Telephone Number: 3618261826 8/27/2019
Is this person the designated U Yes 0 No
Conservation Coordinator?
Regional Water Planning Group: N
Groundwater Conservation District:
�i Our records indicate that you:
I Received financial assistance of$500,000 or more from TWDB
❑.� Have 3,300 or more retail connections
❑✓ Have a surface water right with TCEQ
A. Population and Service Area Data
• Current service area size in square miles: 205
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2. Historical service area population for the previous five years,starting with the most current year.
Year Historical Population Historical Population Historical Population
Served By Served By Served By
Retail Water Service Wholesale Water Wastewater Water
Service Service
2019 326,554 0
2018 325,733 0
2017 324,074 0
2016 320,435 229,565
2015 320,231 180,000
3. Projected service area population for the following decades.
Year Projected Population Projected Population Projected Population
Served By Served By Served By
Retail Water Service Wholesale Water Wastewater Water
Service Service
2030 362,388 565,243 362,388
2040 381,044 589,035 381,044
2050 391,967 607,332 391,967
2060 400,094 621,759 400,094
2070 405,536 632,862 405,536
4. Described source(s)/method(s)for estimating current and projected populations.
Attached file(s):
File Name File Description
TWDB supplied 2021 Regional Water Plan Population
pop_Region_N_2021_plan.xlsx Projections
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B.System Input
System input data for the previous five years.
Total System Input=Self-supplied+Imported-Exported
Year Water Produced in Purchased/Imported Exported Water in Total System Total
Gallons Water in Gallons Gallons Input GPCD
2019 22,038,810,651 0 436,220,522 22,475,031,173 201
2018 24,053,096,907 0 1,284,475,258 22,768,621,649 192
2017 22,903,189,691 0 1,344,741,237 21,558,448,454 182
2016 25,064,414,141 0 1,327,069,388 23,737,344,753 203
2015 23,269,618,947 15,099,738,852 12,668,445,835 25,700,911,964 220
Historic 23,465,826,067 3,019,947,770 3,412,190,448 23,248,071,599 200
Average
C.Water Supply System
1. Designed daily capacity of system in gallons 120,000,000
2. Storage Capacity
2a. Elevated storage in gallons: 5,000,000
2b.Ground storage in gallons: 8,600,000
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D.Projected Demands
1.The estimated water supply requirements for the next ten years
using population trends, historical water use,economic growth,etc.
Year Population Water Demand(gallons)
2020 332,709 34,122,925,486
2021 337,367 34,426,619,523
2022 3- 42,090 34,733,016,437
2023 346,879 35,042,140,283
2024 351,736 35,354,015,332
2025 356,660 35,668,666,068
2026 3- 61,653 35,986,117,196
2027 366,716 36,629,520,542
2028 3- 71,850 36,955,523,275
2029 382,335 37.284,427,432
2030 416,439 40,610,198,359
2. Description of source data and how projected water demands were determined.
The population projections were estimated with a 0.0892%
population growth.Water Demand was projections were estimated
with 0.0892%
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E.High Volume Customers
1.The annual water use for the five highest volume
RETAIL customers.
Customer Water Use Category Annual Water Use Treated or Raw
Valero Corporation Industrial 5,238,887,000 Treated
Citgo Corporation Industrial 1,359,335,000 Treated
Flint Hills Resources Industrial 1,191,964,548 Raw
Lyondell Besell Industrial 1,774,217,000 Treated
Corpus Christi Industrial 590,475,000 Treated
Cogeneration
2.The annual water use for the five highest volume
WHOLESALE customers.
Customer Water Use Category Annual Water Use Treated or Raw
San Patricio Municipal Municipal 7,265,639,154 Raw
Water District
City of Alice Municipal 2,044,012,513 Raw
City of Beeville Municipal 1,372,501,548 Raw
South Texas Water Municipal 546,900,000 Treated
Authority
Nueces County WCID Municipal 334,332,000 Treated
#4
F.Utility Data Comment Section
Additional comments about utility data.
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Section II: System Data
A.Retail Water Supplier Connections
1. List of active retail connections by major water use category.
Water Use Category Total Retail Percent of Total
Type Connections(Active+ Connections
Inactive)
Residential-Single Family 100,282 90
Residential-Multi-Family 1,148 1 %
Industrial 27 0.02
Commercial 7,612 7%
Institutional 1,245 1.1 %
Agricultural 0 0.00%
Total 110,314 100.00%
2. Net number of new retail connections by water use
category for the previous five years.
Net Number of New Retail Connections
Year Residential - Residential - Industrial Commercial Institutional Agricultural Total
Single Multi-Family
Family
2018
2017
2016
2015
2014
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B.Accounting Data
The previous five years'gallons of RETAIL water provided in each major water use category.
Year Residential- Residential- Industrial Commercial Institutional Agricultural Total
Single Family Multi-Family _
2019 5,651,208,796 1,390,300,939 10,875,599,656 3,336,176,829 785,524,431 0 22,038,810,651
2018 5,546,113,000 1,362,233,000 11,148,298,000 3,471,732,000 1,546,572,000 0 23,074,948,000
2017 6,034,448,450 1,494,068,000 8,188,363,000 3,043,424,000 678,662,000 0 19,438,965,450
2016 5,589,095,000 1,591,016,000 10,794,585,000 3,077,473,000 606,886,000 0 21,659,055,000
2015 6,058,677,000 1,655,549,000 10,927,064,000 3,150,832,000 928,322,000 0 22,720,444,000
C. Residential Water Use
The previous five years residential GPCD for single family and multi-family units.
Year Residential- Residential- Total
Single Family Multi-Family Residential
2019 30 29 59
2018 33 33 66
2017 32 32 64
2016 30 31 61
2015 33 33 66
2014 52 21 73
Historic 36 30 66
Average
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D.Annual and Seasonal Water Use
1.The previous five years'gallons of treated water
provided to RETAIL customers.
Total Gallons of Treated Water
Month 2019 2018 2017 2016 2015
January 1,645,700,000 1,739,185,225 1,799,185,225 1,817,185,225 1,769,185,225
February 1,488,988,768 1,432,185,225 1,628,185,225 1,747,185,225 1,469,185,225
March 1,729,265,346 1,786,185,225 1,771,185,225 1,722,185,225 1,804,185,225
April 1,707,664,225 1,757,185,225 1,804,185,225 1,573,185,225 1,894,185,225
May 1,857,007,342 2,029,185,225 1,968,185,225 1,694,185,225 1,960,185,225
June 1,942,713,283 2,178,185,225 1,912,185,225 1,755,185,225 2,003,185,225
July 2,296,315,566 2,143,185,225 2,174,185,225 1,991,185,225 2,198,185,225
August 2,425,930,079 2,192,185,225 2,131,185,225 2,078,185,225 2,311,185,225
September 1,954,393,912 1,770,185,225 1,854,185,225 1,859,185,225 2,038,185,225
October 1,935,354,061 1,770,185,225 1,854,185,225 1,751,185,225 1,923,185,225
November 1,724,464,548 1,640,185,225 1,832,185,225 1,635,185,225 1,855,185,225
December 1,767,234,042 1,673,185,225 1,726,185,225 1,665,185,225 1,870,185,225
Total 22,475,031,173 22,111,222,700 22,455,222,700 21,289,222,700 23,096,222,700
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2.The previous five years'gallons of raw water provided to RETAIL customers.
Total Gallons of Raw Water
Month 2019 2018 2017 2016 2015
January 174,510,000 115,828,400 184,678,400 96,608,900 45,776,200
February 133,850,000 150,378,000 147,539,000 68,863,800 143,190,200
March 125,150,000 135,481,000 187,304,000 114,625,900 100,729,600
April 105,880,000 181,971,500 153,458,360 120,504,600 73,477,016
May 72,450,000 184,758,200 143,048,640 94,475,200 125,432,194
June 98,440,000 60,706,000 36,786,400 53,759,600 55,820,390
July 143,880,000 120,239,019 60,681,400 183,442,900 148,819,200
August 171,430,000 99,710,406 103,786,000 119,090,200 158,387,000
September 164,520,000 67,777,008 90,382,900 79,231,000 130,416,700
October 172,940,000 153,475,821 146,291,000 145,655,397 145,981,248
November 149,260,000 104,272,320 93,214,400 136,531,569 29,978,292
December 163,990,000 119,913,168 103,185,400 126,756,039 37,147,014
Total 1,676,300,000 1,494,510,842 1,450,355,900 1,339,545,105 1,195,155,054
3.Summary of seasonal and annual water use.
Summer RETAIL Total RETAIL
(Treated + Raw) (Treated + Raw)
2019 7,078,708,928 24,151,331,172
2018 6,794,211,100 23,605,733,542
2017 6,418,809,475 23,905,578,600
2016 6,180,848,375 22,628,767,805
2015 6,875,582,265 24,291,377,754
2014 7,104,872,381 39,969,442,019
Average in Gallons 6,674,864,719.20 26,880,179,944.00
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E.Water Loss
Water Loss data for the previous five years.
Year Total Water Loss Water Loss in Water Loss as a
in Gallons GPCD Percentage
2019 1,770,594,834 15 7.38
2018 1,968,883,749 17 8.65
2017 1,945,982,363 16 9.02 0/0
2016 1,679,428,947 14 7.08
2015 2,597,051,964 22 10.10
Average 1,992,388,371 17 8.45°A)
F.Peak Day Use
Average Daily Water Use and Peak Day Water Use for the previous five years.
Year Average Daily Peak Day Use Ratio
Use(gal) (gal) (peak/avg)
2019 61,502,348 69,099,887 1.1235
2018 64,673,242 73,850120 1.1419
2017 65,494,735 69769668 1.0653
2016 61,996,624 67183134 1.0837
2015 66,551,719 74734589 1.1230
G.Summary of Historic Water Use
Water Use Category Historic Percent of Percent of
Average Connections Water Use
Residential -Single 5,775,908,449 90.92% 25.63
Family
Residential -Multi-Family 1,498,633,388 1.04% 6.30
Industrial 10,386,781,931 0.02% 49.34
Commercial 3,215,927,566 6.90% 15.16
Institutional 909,193,286 1.12% 3.55
Agricultural 0 0.00% 0.00%
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H.System Data Comment Section
Attached file(s):
File Name File Description
Section III: Wastewater System Data
A.Wastewater System Data
1. Design capacity of wastewater treatment plant(s)in gallons per 42,700,000
2. List of active wastewater connections by major water use category.
Water Use Metered Unmetered Total Percent of
Category Connections Total
Connections
Municipal 95,638 0 95,638 92.89%
Industrial 14 0 14 0.01%
Commercial 6,644 0 6,644 6.45%
Institutional 657 0 657 0.64%
Agricultural 0 0 0 0%
Total 102,953 0 102,953 100%
3. Percentage of water serviced by the wastewater system.
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4. Number of gallons of wastewater that was treated by the utility for the previous five years.
Total Gallons of Treated Water
Month 2019 2018 2017 2016 2015
January 812,260,000 850,000,000 749,000,000 861,000,000 809,000,000
February 726,370,000 724,000,000 693,000,000 721,000,000 738,000,000
March 771,710,000 831,000,000 892,000,000 946,000,000 1,070,000,000
April 803,420,000 757,000,000 770,000,000 806,000,000 1,045,000,000
May 914,150,000 795,000,000 857,000,000 1,054,000,000 1,325,000,000
June 838,350,000 1,030,000,000 878,000,000 898,000,000 937,000,000
July 808,670,000 967,000,000 820,000,000 833,000,000 888,000,000
August 795,930,000 834,000,000 783,000,000 866,000,000 824,000,000
September 823,980,000 1,358,000,000 829,000,000 852,000,000 836,000,000
October 800,470,000 978,000,000 828,000,000 807,000,000 917,000,000
November 795,990,000 889,000,000 765,000,000 770,000,000 833,000,000
December 824,620,000 794,000,000 878,000,000 767,000,000 820,000,000
Total 9,715,920,000 10,807,000,000 9,742,000,000 10,181,000,000 11,042,000,000
5.Could treated wastewater be substituted for potable water?
Yes 0 No O
Page 12 of 13
Texas Watt
Development Board
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
B. Reuse Data
1. Data by type of recycling and reuse activities implemented during the current reporting period.
Type of Reuse Total Annual Volume
(in gallons)
On-site Irrigation
Plant wash down
Chlorination/de-chlorination
Industrial
Landscape irrigation 5,858,863
(park,golf courses)
Agricultural
Discharge to surface water
Evaporation Pond
Other
Total 5,858,863
C.Wastewater System Data Comment
Additional comments and files to support or explain wastewater system data listed below.
Page 13 of 13
S:
•
•
TEXAS NATURAL RESOURCE CONSERVATION COMMISSION
•
AN AGREED ORDER Amending the operational procedures and continuing an Advisory
Council pertaining to Special Condition 5.B., Certificate of
Adjudication No.21-3214;Docket No. 2001-0230-WR
On April 4,2001, came to be considered before the Texas Natural Resource Conservation
Commission("Commission")the Motion by the City of Corpus Christi and Nueces River Authority
for the adoption of an amendment to the Agreed Order issued April 28,1995,establishing operating
procedures pertaining to Special Condition 5.B., Certificate of Adjudication No. 21-3214,held by
the City of Corpus Christi,the Nueces River Authority,and the City of Three Rivers"(the two cities
and river authority shall be referred to herein as"Certificate Holders"). The Certificate Holders and
the Executive Director of the Texas Natural Resource Conservation Commission have agreed to the
provisions of this Agreed Order.
The City of Corpus Christi (managing entity) requests that Section 2 of this Agreed Order
be amended to add further detail to the provisions regarding the use of water for bays and estuaries
• and to make changes in the required passage of inflows for the bays and estuaries automatic at 40
percent and 30 percent of total reservoir system capacity upon institution of mandatory outdoor
watering restrictions. Additionally,Certificate Holders request the most recent bathymetric surveys
be used for determining reservoir system storage capacity. The Certificate Holders request details
be added regarding provisions for two projects to enhance/augment the amount of freshwater going
into the receiving estuary and timelines for those projects.
After considering the proposals and the presentations of the parties, the Commission finds
that it has authority to establish operational procedures under Special Condition 5.B.of Certificate
of Adjudication No. 21-3214, and that operational procedures previously established should be
amended. The Commission finds that, because of the need to continue to monitor the ecological
environment and health of related living marine resources of the estuaries to assess the effectiveness
of freshwater inflows provided by requirements contained in this Agreed Order relating to releases
and spills from Choke Canyon Reservoir and Lake Corpus Christi (collectively referred to.as the,
Reservoir System),as well as return flows,and to evaluate potential impacts which may occur to the
reservoirs as well as to the availability of water to meet the needs of the Certificate Holders and their
customers which may result from those operational procedures,the existing advisory council should
be maintained to consider such additional information and related issues and to formulate
recommendations for the Commission's review.
The Commission additionally finds that based on the preliminary application of the Texas
Water Development Board's Mathematical Programming Optimization Model,(GRG-2), 138,000
acre-feet of fresh water is necessary to achieve maximum harvest in the Nueces Estuary; and,
therefore,when water is impounded in the Lake Corpus Christi-Choke Canyon Reservoir System
to the extent greater than 70 percent of the system's storage capacity, the delivery of 138,000
i -
acre-feet of water to Nueces Bay and/or the Nueces Delta, by a combination of releases and spills,
together with diversions and return flows noted below, should be accomplished; and that during
periods when the reservoir system contains less than 70 percent storage capacity, reductions in
releases and spills,along with diversions and return flows,are appropriate in that a satisfactory level
of marine harvest will be sustained and the ecological health of the receiving estuaries will be
maintained.
The Commission finds that return flows,other than to Nueces Bay and/or the Nueces Delta,
that are delivered to Corpus Christi Bay and other receiving estuaries are currently in the assumed
amount of 54,000 acre-feet per annum (per calendar year), and that they shall be credited at this
amount until such time as it is shown that actual return flows to Corpus Christi Bay and other
receiving estuaries exceed 54,000 acre-feet per annum.
The Commission finds that by contractual relationships, the City of Corpus Christi is the
managing entity for operating the Reservoir System.
The Commission finds that the Motion by the City of Corpus Christi and Nueces River
Authority to Amend this Agreed Order is reasonable and should be granted. Benefits ofthe proposed
diversion project and operating changes will include increased water supply, increased reservoir
storage levels, increased positive flow events for Rincon Bayou and the upper Nueces Delta,
increased sources of nitrogen for the upper delta, and lower'salinity levels in the upper delta.
When the Commission uses the word "release" in this Order, release means spills, inflow
passage,intentional releases,and return flows;provided,however,under this Order no release from
storage is required to meet conditions of this Order.
By consenting to the issuance of this Agreed Order,no party admits or denies any claim,nor
waives with respect to any subsequent proceeding any interpretation or argument which may be
contrary to the provisions of this Agreed Order.
NOW,THEREFORE,BE IT ORDERED BY THE TEXAS NATURAL RESOURCE
CONSERVATION COMMISSION THAT:
1. a. The City of Corpus Christi, as operator of the Choke Canyon/Lake Corpus Christi •
reservoirs.(the"Reservoir.System"),shall provide not less than 151,000 acre-feet of
water per annum (per calendar year)for the estuaries by a combination of releases
and spills from the Reservoir System at Lake Corpus Christi Dam and return flows
to Nueces and Corpus Christi Bays and other receiving estuaries (including such
credits as may be appropriate for diversion of river flows and/or return flows to the
Nueces Delta and/or Nueces Bay),as computed and to the extent provided for herein.
b. .When water impounded in the Reservoir System is greater than or equal to 70
percent of storage capacity, a target amount of 138,000 acre-feet is to be delivered
to Nueces Bay and/or the Nueces Delta by a combination of releases,and spills from
Page 2 of 11
•
•
the Reservoir System as well as diversions and return flows. In accordance with the
monthly schedule and except as provided otherwise in this Agreed Order, target
inflows to Nueces Bay and/or the Nueces Delta shall be in the acre-foot amounts as
• • follow:: . . • . .. . •
January 2,500 July 6,500
February 2,500 August 6,500
March 3,500 September 28,500
April 3,500 October 20,000
May 25,500 November 9,000
June 25,500 ` • December 4,500
It is expressly provided,however,that releases from Reservoir System storage shall
not be required to satisfy the above targeted inflow amounts, as calculated in
• Subparagraph d.
•
c. When water impounded in the Reservoir System is less than 70 percent but greater
than or equal to 40 percent of storage capacity,a targeted amount of 97,000 acre-feet
is to be delivered to Nueces Bay.and/or the Nueces Delta by a combination of
• releases and spills from the Reservoir System as well as diversions and return flows.
. In accordance-with•the monthly schedule and except as:provided otherwise in this
• Agreed.Order,target inflows to Nueces Bay and/or the Nueces Delta shall be in the'
acre-foot amounts as follows: .
January 2,500 July• .4,500
February 2,500 August .5,000
March 3,500 September 11,500
• April • 3,500 October 9,000
May 23,500 November . 4,000
June 23,000 December 4,500
It is expressly provided,however,that releases from Reservoir System storage shall
•
. not be required to satisfy the above targeted inflow amounts as calculated- in
.. . Subparagraph d. • . .. •
•
d. . .The amounts of water required in.subparagraphs 1..b.and 1.c.will consist of return •.
flows, and intentional diversions, as well as spills and releases from the Reservoir
System as defined in this subparagraph. For purposes of compliance with monthly
targeted amounts prescribed above,the spills and releases described in this paragraph
shall be measured at the U.S. Geological Survey stream monitoring station on the
. Nueces River at Calallen, Texas (USGS Station No. 08211500). Any inflows,
including measured wastewater effluent and rainfall runoffmeeting lawful discharge
standards which are intentionally diverted to the upper Nueces Delta region,shall be
credited toward the total inflow amount delivered to Nueces Bay and/or the Nueces
• Page 3 of 11
•
•
Delta. Inflow passage from the Reservoir System for the purpose of compliance with
the monthly targeted amounts prescribed in subparagraphs 1.b. and 1.c. shall in no
case exceed the estimated inflow to Lake Corpus Christi as if there were no
. impoundment of inflows at Choke Canyon Reservoir. The estimated inflow.to Lake
. ' • 'Corpus' Christi as if there were no impourdment of inflows at Choke,Canyon • .
Reservoir shall be computed as the sum of the flows measured at the U.S.Geological
Survey(USGS)STREAMFLOW GAGING STATIONS ON THE Nueces River near
• Three Rivers (USGS No. 082,10000), Frio River at.Tilden, Texas (USGS No.
08206600), and San Miguel Creek near Tilden, Texas (USGS No. 08206700) less
• computed releases and spills from Choke Canyon Reservoir.
• e. The passage of inflow necessary to meet the monthly targeted allocations may be •
distributed over the calendar month in a manner to be determined by the City. Relief
from the above requirements shall be available under subparagraphs(1)or(2)below •
and Section 2.(b) and 3.(c) at the option of the City of Corpus Christi. However,
passage of inflow may only be reduced under one of those subparagraphs below,for
any given month.
• (1) Inflows to Nueces Bay and/or the Nueces Delta in excess of the required monthly
targeted amount may be credited for up to fifty (50) percent of the targeted
. requirement'for.the following month,based on the amount received. . .
(2) When the mean salinity in Upper Nueces Bay(Lat. 27°51'02", Long. 97°28'52")for
a .10-day period, ending at any time during the calendar month for which the •
reduction of the passage of inflow is sought, is below the SUB*, pass through of
inflow from the reservoir system for that same calendar month may be reduced as
follows:
•
• (a) For any month other than May, June, September and October, if 5
parts per thousand(ppt)below the SUB for the month,a reduction of
25%of the current month's targeted Nueces Bay inflow;
(b) .If 10 ppt below the SUB for the month, a reduction of 50 % of the
• • • current month's targetedNueces Bay inflow•except that.credit under
• . • • this provision,is limited to 25 % dunng the months of May, June,
.. September and October;:. • • • •
* "SUB"means "salinity upper bounds"as set forth more specifically in Section 3.b. •
• (c) • If 15 ppt below the SUB.for that month, a reduction of 75% of the
current month's targeted Nueces Bay inflow.
•
'Page 4 of 11
•
•
•
f. . The City of'Corpus Christi shall submit monthly reports to the Commission
containing daily inflow amounts provided to the Nueces Estuary in accordance with
this Agreed Order through releases,spills,return flows and other freshwater inflows.
•
2. ' a: ' Certificate holders are to provide in any future contracts'or any amendments,': '
modifications or changes to existing contracts the condition that all wholesale-
customers and any subsequent wholesale-customers shall develop and have in effect
a water conservation and drought management plan consistent with Commission rule.
The City of Corpus. Christi shall solicit from its customers and report to the
Commission annually the result of conservation under the City's plan,the customers'
plans, and the feasibility of implementing conservation plans and programs for all
• users of water from the reservoir system. This report shall be submitted with the
• Certificate Holder's annual water use report as provided by 31 T.A.C. §295.202.
b. The Certificate Holders may reduce targeted Nueces Bay inflows during times of
prolonged drought in accordance with this subparagraph 2.
(1) When the combined storage in the Choke Canyon/Lake Corpus Christi
reservoir system (Reservoir System Storage) falls below 50% of the total
• . system storage capacity,the City of Corpus.Christi shall issue public notice
. . . advising`and informing the.water users of'the region of voluntary
• conservation measures that are requested irrimediately'and required drought .
management measures to be taken should the Reservoir System Storage--fall• .
to under 40% and/or 30%of total.system':storage.capacity. To the'extent of
its legal authority, the City of Corpus Christi shall require its wholesale
•
customers to issue public notice advising and informing the water users ofthe
• region of voluntary conservation measures that are requested immediately and
required drought management measures to be taken should the Reservoir
System Storage fall to under 40%.and/or 30% of total system storage
• capacity. . •
• (2) In any month when Reservoir System Storage is,less than 40%,but equal to.
. or greater than 30% of total.system storage capacity, the City of Corpus
. • • Christi shall implement time of day outdoor watering restrictions and shall
• - . • - . • reduce targeted inflows-to Nueces Bay to 1,200 acre-feet per month(1,200"
• acre-feet•per month represents the quantity of water that is the median inflow
into Lake Corpus Christi during the drought of record). Time of day outdoor
watering restrictions prohibit lawn watering between the hours of 10:00
o'clock a.m. and 6:00 o'clock p.m.and are subject to additional conditions
as described in the City of Corpus Christi's approved"Water Conservation
and Drought ContingencyPlan("Plan")." To the extent of its legal authority,
the City of Corpus Christi shall require its wholesale customers to implement
• time of day outdoor watering restrictions similar to those of the City.
• Page 5 of 11 -
i - '
•
(3) In any month when Reservoir System Storage is less than 30%of total system
storage capacity,the City of Corpus Christi shall implement a lawn watering
schedule in addition to time of day outdoor watering restrictions (see
• . subparagraph 2.b.(2)) and shall suspend the passage of inflow from the.• •
• - Reservoir System for targeted inflows to Nueces Bay. However,return flows
directed into Nueces Bay and/or the Nueces Delta shall continue. The lawn
watering schedule shall allow customers to water lawns no oftener than every
five days, subject to the time of day restrictions described in subparagraph '
2.b.(2) and any additional conditions as described in the City's Plan.
(4) Certificate Holders' may implement whole or partial suspension of the
passage of inflow through the reservoir as described above when the City
implements,and requires its customers to implement,water conservation and
drought management measures at diminished Reservoir System levels,as set
forth in subparagraphs b.(2) and b.(3).
c. For purposes of this Agreed Order, Reservoir System storage capacity shall be
determined by the most recently completed bathymetric survey of each reservoir. As
of 2001, completed bathymetric surveys of each reservoir reports conservation
storage capacities of 695,271 acre-feet(below 220.5 feet mean sea level)for Choke
Canyon Reservoir (Volumetric Survey of Choke Canyon Reservoir, TWDB ••
• • September 23, 1993)and 241,241 acre-feet(below 94 feet mean sea level)for Lake
• • Corpus Christi(Regional Water Supply Planning Study-Phase I Nueces River Basin,
HDR,December, 1990).
d. Percentage of the Reservoir System capacity shall be determined on a daily basis and
shall govern, in part, the inflow to be passed through the reservoir during the
remaining days of the month..
e. Within the first ten days of each month,the City of Corpus Christi shall submit to the
• Commission a monthly report containing the daily capacity of the Reservoir System •
in percentages and mean sea levels as recorded for the previous month as well as
reservoir surface areas and estimated inflows to Lake Corpus .Christi assuming no
• •impoundment of inflows at Choke .Canyon•Reservoir. The report shall indicate • • . •
• • . • . • • which gages or measuring devices were used to determine Reservoir System capacity • .
. and estimate inflows to Lake Corpus Christi.
f. Concurrent with implementing subparagraphs 2.b.(1)through 2.b.(3),the City shall
proceed to: • "
1. Acquire land rights to properties necessary to re-open the Nueces River
Overflow Channel and make the Nueces River Overflow Channel and Rincon
Bayou Overflow Channel permanent features ofthe Rincon B ayou Diversion;
• *.Page 6of 11
•
2. Construct and operate a conveyance facility to deliver up to 3,000 acre-feet
• • per month of required Reservoir System"pass-throughs" directly from the
Calallen Pool into the Upper Rincon Bayou by use of one or two of the five
. • • • authorized points of diversion under Certificate of Adjudication No. 2464,
• being the.existing San Patricio Municipal Water:District point of diversion '
and/or a point on the North bank of the Calallen Pool located at Latitude. •
. • 27.8823°N, Longitude.97.6254°W, also bearing S 27° 24' W, 4,739 feet
• • from the southwest corner of the J.H.W. Ottman Survey,Abstract No.212,
San.Patricio County,Texas,where the water will be pumped at the maximum
rate of 45,000 gprri; and
3.. Implement an on-going monitoring and assessment program designed to.
• facilitate an "adaptive management"program for freshwater inflows into the
• Nueces Estuary.•
.
•
. 4. Construction necessary to implement subparagraph 21.1. shall be
accomplished by December 31, 2001 and work necessary.to accomplish S
subparagraph 212. shall be accomplished by December 31, 2002.
•
• 5. In the event the City fails to timely complete the work set forth in
•• subparagraphs 2.f.1.and 2.f.2.,this amendment shall automatically terminate
and the provisions of the Agreed Order of April 28, 1995 shall be reinstated
• and become operative despite this amendment;unless the Executive Director•
grants a modification after considering the recommendations of the Nueces •
• Estuary Advisory Council.
g. The Executive Director is delegated authority to make modifications to subparagraph
2.f.,after considering the recommendations of the Nueces Estuary Advisory Council.
However,changes maybe made through this process only with the City's consent if
the changes result'in increased costs to the City.
• If the Executive Director makes modifications to subparagraph 2.f. as authorized in
• • this paragraph, any affected person.may file With the chief clerk a motion for
• reconsideration of the Executive Director's action no later.than 23 days after the date
the Executive Director mails notice of themodificatiOntO the City. This motion shall .
• be considered under the provisions of 30 Texas Administrative.Code§50.39(d)and ••
(e)• •
h.. The City shall obtain all necessary permits from the.Commission before beginning
these projects. The deadlines set out above include time necessary to apply for,
process and,if necessary,complete hearings.on these permits.
3. a. • The City of Corpus Christi,with the assistance and/or participation of federal, state
and local entities, shall maintain a monitoring program to assess the effect of this
• ..Page 7 of 11 .
•
operating plan on Nueces Bay. The cornerstone of this program is the development
of a salinity monitoring program. The program shall include at least two monitoring
stations,one in upper Nueces Bay(Lat.27°51'02",Long.•97°28'52")and one in mid
• •Nueces Bay (Lat..2.7°51'25",Long. 97°25'28") with the capability of providing • .
. • • . • continuous salinity and/or conductivity.data,temperature;pH,and dissolved oxygen •
levels. Additional stations may be established at the recommendation of the
• Advisory Council(continued by paragraph 4 of this Agreed Order)to assess inflow
effects throughout the estuarine system, but the City shall not.be obligated to
establish such additional stations except to the extent authorized by its City Council.
b. The City of Corpus Christi or its designated representatives shall monitor salinity
levels in Upper and Mid-Nueces Bay. The lower(SLB) and upper(SUB) salinity
bounds(in parts per thousand-ppt)developed for application of the Texas Estuarine
• Mathematical Programming Model and considered appropriate for use herein,are as
follows:
SLB SUB ' SLB SUB.
January 5 30 July 2 25
February 5 30 August 2 25
March 5 • 30 • September 5 . 20
April • 5 30 .October 5 '30
• May • 1 20 November 5 30 . • . •
June 1 • 20 -December 5 30
c. When the average salinity for the third week(the third week includes the seven days
• from the 15th through 21st) of any month is at or below the subsequent month's
established SLB for upper Nueces Bay(Lat.27°51'02",Long.97°28'52"),no releases
from the Reservoir System to satisfy targeted Nueces Bay inflow mounts shall be
required for that subsequent month. •
d. All data collected as a result of the monitoring program required by paragraph 3 of
this Agreed Order shall be submitted monthly to the Commission within,the first ten
. .days of the immediately following month. The Nueces Estuary Advisory. Council •:. .
shall study the feasibility of developing a method'of granting.credits for inflows. •
which exceed the required amounts' to replace the credits that are set out in
subparagraph 1.e.(1) and make recommendations to the Commission for possible
implementation. That method shall have as its goal the maintenance of the proper
ecological environment and health of related living marine resources and the
. provision of maximum reasonable credits towards monthly inflow requirements.
•
4. a. To assist the Commission in monitoring implementation of this Order and making
• recommendations to the Commission relating to any changes to this Agreed Order
and the establishment of future operating procedures,the Nueces Estuary Advisory
Page 8-of 11 • •
• •
•
Council shall be continued. Its members shall include, but are not limited to a
qualified representative chosen by each of the following entities or groups: the
Executive Director of the Texas Natural Resource Conservation Commission,whose
• representative shall serve as chairthe Texas Water Development Board; the Texas •
Parks and Wildlife Department;the Texas Department of Health; the General Land
Office;the holders of Certificate of Adjudication No.21-3214(the Cities-of Corpus '
Christi and Three Rivers and the Nueces River Authority; the University of Texas
Marine Science Institute; Texas A&M University- Corpus Christi; Save Lake
Corpus Christi; Corpus Christi Chamber of Commerce;the City of Mathis; Coastal
Bend Bays and•Estuaries Program, Inc.; a commercial bay fishing group; a
• conservation group (e.g.. the Sierra Club and'the Coastal Bend Bays Foundation);
wholesale water suppliers who are customers of the Certificate Holders (e.g., the
South Texas Water Authority and the San Patricio Municipal Water District); the
Port of Corpus Christi Authority; arid a representative of industry.. The
representatives should have experience and knowledge relating to current or future
water use and management or environmental and economic needs of the Coastal
Bend area.
•
b. No modification shall be made to this Order without the unanimous consent of the
Certificate Holders, except to the extent provided by law. •
• . c. Matters to be studied by the Nueces Estuary Advisory Council.and upon which the .
Executive Director shall certify recommendations to the Commission-shall include, '
but are not limited to:
• (1) the effectiveness of the inflow requirements contained in this Agreed Order
on Nueces Estuary and any recommended changes;' '
(2) the effect of the releases from the Reservoir System upon the aquatic and
• • wildlife habitat and other beneficial and recreational uses of Choke Canyon
Reservoir and Lake Corpus Christi; •
(3) the development and implementation of a short and long-term regional water
• . •management plan for the Coastal Bend Area; ••
(4) . . the salinity level to be applied in Paragraphs i.e. and 3.c., at which targeted
inflows in the subsequent month may be.suspended;
• (5) the feasibility of discharges at locations where the increased biological
productivity justifies an inflow credit computed by multiplying the amount
of discharge .by a number greater than one; and development of a
• • • . methodology for granting credits for inflows which exceed the required
amount to replace the credits that are set out in subparagraph i.e.. That
methodology shall have as its.goal the maintenance of the proper ecological
Page9of 11 . •
•
environment and health of related living marine resources and the provision
• of maximum reasonable credits towards monthly inflow requirements; and,
• • . .(6) • •••any other matter pertinent to the conditions contained in this Agreed Order. •
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5. This Agreed Order shall remain in effect until amended or superseded by the Commission.
• • Issued.date: •APR:05 2001. • • .• • • TEXAS NATURAL RESOURCE
. • .CONSERVATION COMMISSION
• •
R Vert J. uston, airman
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Appendix C
/gip U 5 Cy
/`O 4,,�\ CITY OF CORPUS CHRISTI
!0 .- UTILITY BUSINESS OFFICE
> filing
KUTILk I
ITY RATE SCHEDULE
J c! WATER SERVICE
Effective January 1,2020
MINIMUM MONTHLY CHARGE(FOR FIRST 2,000 GALLONS)
INSIDE CITY LIMITS OUTSIDE CITY LIMITS
Meter Size Minimum Meter Size Minimum
5/8"X 3/4" Residential $ 12.92 5/8"X 3/4" Residential $ 15.51
5/8"X 3/4" Commercial 12.92 5/8"X 3/4" Commercial 15.51
1" 19.39 1" 23.26
1 1/2" 32.31 1 1/2" 38.77
2" 64.60 2" 77.52
3" 103.36 3" 124.04
4" 206.72 4" 248.07
6" 323.00 6" 387.60
8"or larger 646.00 8"or larger 775.20
MONTHLY VOLUME CHARGES PER 1,000 GALLONS(above the minimum level)
INSIDE THE CITY LIMITS OUTSIDE THE CITY LIMITS
PER 1,000/GALLONS PER 1,000/GALLONS
Residential Residential
First 2,000 Gallons Minimum First 2,000 Gallons Minimum
Next 4,000 $ 6.46 Next 4,000 $ 2.49
Next 9,000 7.42 Next 9,000 3.10
Over 15,000 8.09 Over 15,000 3.92
Commercial Commercial
First 2,000 Gallons Minimum First 2,000 Gallons Minimum
Over 2,000 $ 7.17 Over 2,000 $ 3.36
Large Volume- Large Volume-
Minimum Minimum Minimum Minimum
First 10,000,000 Gallons $ 24,202.00 First 10,000,000 Gallons $ 40,382.00
Over 10,000,000 5.90 Over 10,000,000 2.20
Residential Irrigation(Water on separate meter) Residential Irrigation(Water on separate meter)
First 2,000 Gallons $ Minimum First 2,000 Gallons $ Minimum
Over 2,000 8.09 Over 2,000 3.92
Agency for Resale Agency for Resale
Metered at the site of treatment Water delivered through City facilities
First 2,000 Gallons Minimum First 2,000 Gallons Minimum
Over 2,000 $ 1.464 Over 2,000 $ 2.096
Monthly charge for Raw Water(includes Raw Water
Supply Dev) Golf Course/Athletic Field[irrigation
Effective January 1,2020 First 2,000 Gallons Minimum
Raw water rate payers ICL&OCL$1.070/TGAL Over 2,000 $ 3.45
Raw water non rate payers ICL&OCL$1.111/TGAL
Appendix D
OPERATIONS PLAN FOR THE
LAKE CORPUS CHRISTI-CHOKE CANYON RESERVOIR SYSTEM
The following operations plan for the Lake Corpus Christi—Choke Canyon Reservoir water system
provides for the two reservoirs to be operated as a regional water supply with primary purpose to be
furnishings a dependable supply to the people in the Coastal Bend area.The plan also recognizes the
need for the recreational facilities for public use and the Texas Water Commission adjudicated water
permit which requires a minimum flow of 151,000 acre-feet of water annually to bays and estuaries
from return flows,spills,or fresh water releases from Lake Corpus Christi once Choke Canyon Reservoir
fills.
The Plan consists of four phases of operation depending on the water levels in the two reservoirs.
PHASE I- This phase applies only to the initial filling period of Choke Canyon Reservoir. It is
necessary that this reservoir be filled at the earliest opportunity so that all structures
and mechanical equipment can be tested. Initial filling of the reservoir also triggers the
requirement that minimal flows be made available for bays and estuaries.
1. During the initial period, only the releases requires required by agreement between
the City of Corpus Christi and the Texas Parks and Wildlife Department,varying
between 15 and 33 cubic feet per second depending on the reservoir level,will be
made unless Lake Corpus Christi elevation falls below elevation 86 feet.
2. If water user demand is less than 200,000 acre-feet annually and Lake Corpus Christi
is at elevation 86 feet,water will be released from Choke Canyon to maintain this
elevation until Choke Canyon Reservoir falls to elevation 184 feet.
3. When Lake Corpus Christi has fallen to elevation 86 feet and Choke Canyon has
fallen to elevation 184 feet, Lake Corpus Christi will be allowed to drop to elevation
76 feet, at which time water will be released from Choke Canyon to allow user's
intake structures at Lake Corpus Christi to be used.
4. Should water user demand excess 200,000 acre-feet annually,the water level of
Lake Corpus Christi will be allowed to drop to elevation 76 feet prior to releases
from Choke Canyon Reservoir.
PHASE II- This phase applies after Choke Canyon Reservoir is filled and water user demand is less
than 150,000 acre-feet annually.
1. A minimum of 2,000 acre-feet per month will be released from Choke Canyon
Reservoir to meet conditions of the release agreement between City of Corpus
Christi and the Texas Parks and Wildlife Department.
2. Whenever Lake Corpus Christ water surface falls to elevation 88 feet and Choke
Canyon Reservoir surface elevation is above 204 feet, releases will be made from
Choke Canyon Reservoir to maintain Lake Corpus Christi surface at elevation 88 feet.
3. Whenever Lake Corpus Christi water surface is at or below elevation 88 feet and
Choke Canyon Reservoir surface elevation is below 204 feet, the Choke Canyon
release for the current month is made equal to the Lake Corpus Christi release from
the preceding month. This minimizes drawdown at Lake Corpus Christi for
recreation purposes and promotes a more constant quality of water by mixing
Choke Canyon Reservoir releases with Lake Corpus Christi content.
PHASE III- This phase applies after Choke Canyon Reservoir is filled and water user demand is
between 150,000 and 200,000 acre-feet annually. During this period,water release plan
prepared by the Bureau of Reclamation will be followed to produce a dependable yield
of 252,000 acre-feet.
1. A minimum of 200,000 acre-feet per month will be releases from Choke Canyon
Reservoir to meet conditions of the release agreement between the City of Corpus
Christi and the Texas Parks and Wildlife Department.
2. Whenever Lake Corpus Christi water surface is at or below elevation 88 feet, and
the ratio of Choke Canyon Reservoir content to Lake Corpus Christi content (both at
the end of the preceding month) exceeds the corresponding ratio with 6-foot
drawdown at both reservoirs, the Choke Canyon Reservoir release for the current
month is made equal to the Lake Corpus Christi release during the preceding month.
This equalizes drawdown at the two reservoirs for recreation purposes and
promotes a more constant quality of water by mixing Choke Canyon Reservoir
releases with Lake Corpus Christi content.
PHASE IV- This phase applies after Choke Canyon Reservoir is filled, water user demand exceeds
200,000 acre-feet annually, and developed long-term supply is less than 300,000 acre-
feet annually.
1. A minimum of 2,000 acre-feet per month will be released from Choke Canyon
Reservoir to meet conditions of the release agreement between the City of Corpus
Christi and the Texas Parks and Wildlife Department.
2. In order to provide maximum dependable yield from the two reservoirs, the water
level in Lake Corpus Christi will be allowed to drop top elevation 74.0 feet
(Ordinance Changed #022661) before water is released from Choke Canyon
Reservoir in excess of the 2,000 acre-feet per month requirement. When the
elevation of Choke Canyon Reservoir drops to 155 feet, Lake Corpus Christi will be
lowered to its minimum elevation.
LAKE CORPUS CHRISTI-CHOKE CANYON RESERVOIR STATISTICAL DATA
Water Elevation Minimum Functional
Capacity,Acre-Feet* When Full, Feet Elevation, Feet
Lake Corpus Christi 272,000 94.0 76.0
Choke Canyon Reservoir 692,000 220.5 147.5
Intake Structure Elevations of Customers Withdrawing Water Directly from Lake Corpus Christi:
Elevation, Feet
City of Mathis 73.0
Beeville Water Authority 74.0
Alice Water Authority 67.0
City of Corpus Christi 55.0
Annual Lake Corpus Christi Withdrawals:
Fiscal Year Total Withdrawn From Lake,Acre-Feet
1975-76 86,416
1976-77 86,408
1977-78 101,596
1978-79 96,029
1979-80 106,851
1980-81 104,657
1981-82 107,002
1982-83 107,348
1983-84 119,701
1984-85 90,226
1985-86 105,469
* 1 acre-foot=325,850 gallons
Appendix E
ARTICLE XII. -WATER RESOURCE MANAGEMENT"
Footnotes:
---(7) ---
Editor's note—Ord. No. 24396, § 1, adopted Mar. 20, 2001, amended art. XII, in its entirety, to read as
herein set out. Former art. XII pertained to similar subject matter. See the Code Comparative Table.
Sec. 55-150. -Scope, purpose, authorization, and definitions.
(a) Scope. There is hereby established a City of Corpus Christi Water Conservation Plan and Drought
Contingency Plan. The City of Corpus Christi Water Conservation Plan approved on May 28, 2013
and the Drought Contingency Plan Revised 2018 edition, approved January 30, 2018, as amended
by ordinance, a true copy of which is on file in the office of the city secretary, is adopted, and shall be
followed in matters concerning water conservation, drought management, and water supply
enhancement programs.
(b) Declaration of policy.
(1) It is hereby declared that the general welfare requires that the water resources available to the
city be put to the maximum beneficial use to the extent to which they are capable, and that the
waste or unreasonable use, or unreasonable method of use of water be prevented, and the
conservation of such water is to be extended with a view to the reasonable and beneficial use
thereof in the interests of the people of the area served by the city's water resources and for the
public welfare.
(2) In making decisions under this article concerning the allocation of water between conflicting
interests, highest priority will be given to allocation necessary to support human life and health;
i.e., the minimum amount of water necessary for drinking, prevention of disease, and the like.
Second highest priority will be given to allocations which will result in the least loss of
employment to persons whose income is essential to their families.
(c) Authorization. The city manager, or his designee, upon the recommendation of the assistant city
manager, public works and utilities, is hereby authorized and directed to implement the applicable
provisions of this article upon their determination that such implementation is necessary to protect
the public welfare and safety.
(d) Definitions. The following terms used in this article are defined as follows:
(1) "City manager"means the city manager or the city manager's designee.
(2) "Drip irrigation" means an irrigation system that applies water at a controlled low-flow levels
directly to the soil.
(3) "Fountain" means an artificially created jet or stream of water; a structure, often decorative,
from which a jet or stream of water issues.
(4) "Industrial customers use of water for processing" means the use of water in processes
designed to convert materials of lower value into forms having greater usability.
(5) "Non-essential purpose" means water uses that are not essential or not required for the
protection of public health, safety and welfare.
(Ord. No. 24396, § 1, 3-20-2001; Ord. No. 029846, § 3, 5-28-2013; Ord. No. 029946, § 1, 9-10-
2013; Ord. No. 030545, § 1, 7-14-2015; Ord. No. 031355, § 1, 1-30-2018; Ord. No. 031533, § 1,
9-11-2018)
Sec. 55-151.-Water conservation measures at all times.
(a) The following measures are year-round water conservation best management practices that are in
effect at all times, regardless of the reservoir levels or drought contingency levels:
(1) Prohibition on wasting water: Actions leading to wasting of water are prohibited and will be
enforced. No person shall:
a. Allow water to run off property into gutters or streets.
b. Permit or maintain defective plumbing in a home, business establishment or any location
where water is used on the premises. Defective plumbing includes out-of-repair water
closets, underground leaks, defective or leaking faucets and taps.
c. Allow water to flow constantly through a tap, hydrant, valve, or otherwise by any use of
water connected to the city water system.
d. Use any non-recycling decorative water fountain.
e. Allow irrigation heads or sprinklers to spray directly on paved surfaces such as driveways,
parking lots, and sidewalks in public rights-of-way.
f. Operate an irrigation system at water pressure higher than recommended, causing heads to
mist, or to operate with broken heads.
(2) Time of irrigation: Irrigation by spray or sprinklers is prohibited between the hours of 10:00 a.m.
and 6:00 p.m. It is still permissible to water by hand or by drip irrigation at any time of day,
unless the city enters Reservoir System Stage 3. However, the use of water is permitted at any
hour for short periods of time for testing related to the installation, maintenance, and repair of
sprinkler systems.
(3) Restaurant water saving: Commercial dining facilities must only serve water upon request.
(Ord. No. 24396, § 1, 3-20-2001; Ord. No. 24726, § 1, 1-8-2002; Ord. No. 026235, § 1, 4-26-
2005; Ord. No. 026542, § 1, 11-15-2005; Ord. No. 028141, § 1, 4-28-2009; Ord. No. 029846, §
3, 5-28-2013; Ord. No. 029946, § 1, 9-10-2013; Ord. No. 031355, § 1, 1-30-2018)
Sec. 55-152. - Drought management: Reservoir system stages.
(a) The level of reservoir system severity determines the extent of potential water use restrictions that
shall be implemented. Following are the levels of reservoir system in the form of stages:
(1) Stage 1: Mild water shortage watch.
(2) Stage 2: Moderate water shortage condition.
(3) Stage 3: Critical water shortage condition.
(4) Stage 4: Emergency water shortage condition.
(b) Criteria for initiation and termination of reservoir system response stages:
(1) The city manager, or designee, shall monitor water supply and/or demand conditions on a
weekly basis and shall determine when conditions warrant initiation or termination of each
stage, that is, when the specified "triggers" are reached. However, the city manager, in the
exercise of the city manager's discretion, may initiate or terminate any stage when the city
manager deems necessary at any particular time.
(2) The triggering criterion to be monitored for determining reservoir system response stages is the
combined reservoir storage levels of Choke Canyon Reservoir and Lake Corpus Christi.
(3) Whenever any of the stages listed below are triggered, the city manager shall publish a public
notice of the particular stage, in the daily newspaper of general circulation in Nueces County.
(4) To the extent of city's legal authority, the city manager shall require the city's raw water and
wholesale treated water customers to issue public notice advising their water customers of
conservation and drought management activities consistent with the stages listed below.
(c) The triggering criterions are as follows:
(1) Stage 1 - Mild water shortage watch:
Requirements for initiation -The combined storage level for Choke Canyon Reservoir and Lake
Corpus Christi declines to below forty(40) per cent.
Requirement for termination - Stage 1 of the plan may be rescinded when the combined storage
level increases above fifty (50) per cent.
(2) Stage 2-Moderate water shortage condition:
Requirements for initiation -The combined storage levels declines to below thirty (30) per cent.
Requirement for termination -Stage 2 of the plan may be rescinded when the combined storage
level increases above forty (40) per cent. Upon termination of Stage 2, Stage 1 becomes
operative.
(3) Stage 3- Critical water shortage condition:
Requirements for initiation -The combined storage levels of Choke Canyon Reservoir and Lake
Corpus Christi declines to below twenty(20) per cent.
Requirement for termination -Stage 3 of the plan may be rescinded when the combined storage
level increases above thirty (30) per cent. Upon termination of Stage 3, Stage 2 becomes
operative.
(4) Stage 4-Emergency water shortage condition:
Requirements for initiation - When the city manager, or designee, determines that a water
supply emergency exists based on:
• A major water line breaks, or pump or system failures occur, which causes unprecedented
loss of capability to provide water service; or
• Water production or distribution system limitations; or
• Natural or manmade contamination of the water supply source occurs.
Requirement for termination -The emergency water shortage condition may be rescinded when
the city manager, or designee, deems appropriate.
(Ord. No. 24396, § 1, 3-20-2001; Ord. No. 24576, § 1, 9-11-2001; Ord. No. 029846, § 3, 5-28-
2013; Ord. No. 029946, § 1, 9-10-2013; Ord. No. 030545, § 1, 7-14-2015; Ord. No. 031160, § 1,
5-30-2017; Ord. No. 031355, § 1, 1-30-2018)
Sec. 55-153.- Drought management: Reservoir system best management practices per stage.
(a) In order to achieve water use reductions, a series of best management practices will be enacted
and enforced at each reservoir system stage. These best management practices (BMP) are listed
below by stage. During Stages 1, 2, and 3, requests for exceptions may be presented to the director
of water operations or his designee.
(b) Stage 1 response- Mild water shortage watch.
(1) Target: During Stage 1, achieve a ten (10) per cent reduction in daily treated water demand
relative to treated water demand with the water use restrictions below.
(2) The best management practices for supply management: The city will also do the following
during Stage 1:
a. Use more repair crews if necessary to allow for a quicker response time for water-line leak
repair; and
b. City crews (water and other departments) begin monitoring customers' compliance with
Stage 1 restrictions during the course of their daily rounds.
(3) The following water use restrictions shall apply to all persons during Stage 1:
a. Irrigation of landscaped areas with hose-end sprinklers or automatic irrigation systems
shall be limited to once per week. The watering schedule will be determined by the city
manager or designee. Customers will be made aware of their designated watering day in
accordance with drought contingency plan.
However, irrigation of landscaped areas is permitted on any day if it is by means of a hand-
held hose (with positive shutoff nozzle), a faucet filled bucket or watering can of five (5)
gallons or less, or drip irrigation system with a positive shutoff device. Exceptions for this
restriction may be permitted, upon review and approval by the director of water operations
or his designee for the following uses: new plantings (for up to sixty (60) days), vegetable
gardens, athletic playing fields, and botanical gardens. In addition, this restriction does not
apply to customers irrigating with well water or an aerobic septic system. Customers
irrigating with well water or an aerobic septic system must apply for a permit from the city
water department to be prominently posted on the premises within two (2) feet of the street
number located on the premises.
b. Use of water from hydrants shall be limited to firefighting, related activities, or other
activities necessary to maintain public health, safety and welfare, except that use of water
from designated fire hydrants for construction purposes may be allowed under special
permit from the City of Corpus Christi Water Department.
c. Use of water for the irrigation of golf course greens, tees, and fairways is prohibited except
on designated watering days. However, if the golf course utilizes a water source other than
that provided through City of Corpus Christi Water Department infrastructure, the facility
shall not be subject to these regulations.
d. The use of water to maintain integrity of building foundations is permitted on any day at any
time only by use of hand-held hose or drip irrigation.
e. Except for immediate fire protection or flushing of water lines, the use of water from a
hydrant is only allowed with a permit granted by the director of water operation or his
designee and a construction meter obtained from the utility business office.
(c) Stage 2 response- Moderate water shortage conditions .
(1) Target: During Stage 2, achieve a fifteen (15) per cent reduction in total daily treated water
demand relative to treated water demand with the water use restrictions below.
(2) Best management practices for supply management: In addition to the best management
practices for supply management listed under Stage 1, the city will also do the following during
Stage 2:
a. Eliminate the flushing of water mains unless required for decontamination and/or public
safety; and
b. Review customers' water usage for compliance based on the previous month's water use
and notify violators verbally or in writing as the situation dictates.
(3) Water use restrictions for demand reduction: All requirements of Stage 1 shall remain in effect
during Stage 2 except as modified below:
a. Irrigation of landscaped areas shall be limited to once every other week. The watering
schedule will be determined by the city manager or designee. Customers will be made
aware of their designated watering day. However, irrigation of landscaped areas is
permitted on any day if it is by means of a hand-held hose (with positive shutoff nozzle), a
faucet filled bucket or watering can of five (5) gallons or less, or drip irrigation system with
a positive shutoff device. Exceptions for this restriction may be permitted, upon review and
approval by the director of water operations or his designee, for the following uses: new
plantings (for up to sixty (60) days), vegetable gardens, athletic playing fields, and
botanical gardens. In addition, this restriction does not apply to customers irrigating with
well water or an aerobic septic system. Customers irrigating with well water or an aerobic
septic system shall still apply for a permit from the city water department to be prominently
posted on the premises within two (2)feet of the street number located on the premises.
b. The watering of golf course fairways with potable water is prohibited. The watering of
greens and tees are limited to once every other week unless the golf course utilizes a
water source other than that provided through City of Corpus Christi Water Department
infrastructure or done by means of hand-held hoses, hand-held buckets, or drip irrigation.
(4) During Stage 2, the following measures are optional water use restrictions that may be
implemented by the city manager, or designee, with city council approval, as conditions warrant:
a. For residential and multi-unit customers, a drought surcharge of up to and including one
hundred (100) per cent of the total monthly water bill over the monthly allocation may be
added to the customers' bill to deter discretionary water use.
(d) Stage 3 response -Critical water shortage conditions.
(1) Target: During Stage 3, achieve a thirty (30) per cent or greater reduction in daily treated water
demand relative to treated water demand with the water use restrictions below. An additional
surcharge will be added to each utility bill during Stage 3 water shortage conditions to
discourage discretionary water use, as described in section 55-154 for retail customers and
section 55-159 for wholesale customers.
(2) Best management practices for supply management: In addition to the best management
practices for supply management listed under Stage 2, the city will also do the following during
Stage 3:
• Upon written notice, disconnect the water meters'of willful violators if absolutely necessary
to prevent the deliberate wasting of water.
(3) Water use restrictions for demand reduction: All requirements of Stages 1 and 2 shall remain in
effect during Stage 3 except as modified below:
a. Irrigation of landscaped areas shall be prohibited at all times.
b. Use of water to wash any motor vehicle, motorbike, boat, trailer, or other vehicle not
occurring on the premises of a commercial car wash and not in the immediate interest of
public health, safety, and welfare is prohibited.
c. The filling, refilling, or adding of water to swimming pools, wading pools, and jacuzzi-type
pools, and water parks (unless utilizing water from a non-city alternative source) is
prohibited.
d. The use of water to maintain the integrity of a building foundation is still permitted on the
designated Stage 2 watering day and shall be done by hand or drip irrigation method.
e. All fountains shall only operate to circulate water in order to maintain equipment.
f. The use of water for construction purposes from designated fire hydrants with a special
permit will continue with a ten (10) per cent surcharge added to the water rate.
(4) During Stage 3, the following measures are optional water use restrictions that may be
implemented by the city manager, or designee, with city council approval, as conditions warrant:
a. No application for new, additional, expanded, or increased-in-size water service
connections, meters, service lines, pipeline extensions, mains, or water service facilities of
any kind shall be approved, and time limits for approval of such applications are hereby
suspended for such time as this drought response stage shall be in effect.
b. For residential and multi-unit customers, a drought surcharge of up to and including one
hundred (100) per cent of the total monthly water bill over the monthly allocation may be
added to the customers' bill to deter discretionary water use.
(e) Stage 4 response-Emergency water shortage conditions.
(1) Target: During Stage 4, achieve a fifty (50) per cent or greater reduction in daily treated water
demand relative to treated water demand with the below water use restrictions. Surcharges and
reduced allocations are enforceable during Stage 4 water shortage conditions, as described in
section 55-154.
During emergency conditions such as system outage, supply source contamination, or supply
sources draining empty, alternative water sources and/or alternative delivery mechanisms may
be necessary with prior approval of the city manager. For emergency water shortage conditions
associated with contamination of Nueces Basin stored supplies, the city, under the city
manager's direction, will cease pumping from the Nueces River and will contact the LNRA to
identify additional, temporary water that may be available from Lake Texana on a short-term
basis to meet essential water needs. For emergency water shortage conditions associated with
contamination of Lake Texana supplies, the city, under the city manager's direction, will cease
pumping from the Mary Rhodes Pipeline.
(2) Best management practices for supply management: In addition to the best management
practices for supply management listed under Stage 3, the city will also do the following:
• Call the ten (10) largest water customers in the area affected by the emergency condition,
and if necessary, use runners in key areas to begin spreading the message of a major
outage.
(3) Water use restrictions for demand reduction: During Stage 4, all requirements of Stages 1, 2,
and 3 shall remain in effect except as modified below:
a. Irrigation of landscaped areas is absolutely prohibited.
b. Use of water to wash any motor vehicle, motorbike, boat, trailer, or other vehicle is
absolutely prohibited.
c. Associated uses of water not related to business process which are discretionary, such as
equipment washing, shall be deferred until the Stage 5 emergency has been terminated.
(4) During Stage 4, the following measures are optional water use restrictions that may be
implemented by the city manager, or designee, with city council approval, as conditions warrant:
For residential and multi-unit customers, a drought surcharge of up to and including one
hundred (100) per cent of the total monthly water bill over the monthly allocation may be added
to the customers' bill to deter discretionary water use.
(Ord. No. 24396, § 1, 3-20-2001; Ord. No. 24576, § 2, 9-11-2001; Ord. No. 029846, § 3, 5-28-
2013; Ord. No. 029946, § 1, 9-10-2013; Ord. No. 030545, § 1, 7-14-2015; Ord. No. 031160, § 1,
5-30-2017; Ord. No. 031355, § 1, 1-30-2018)
Sec. 55-154. -Surcharges for reservoir system stages 2, 3 and 4, and service measures.
(a) General.
(1) The surcharges established herein are solely intended to regulate and deter the use of water
during a period of serious drought in order to achieve necessary water conservation. The city
council expressly finds that the drought poses a serious and immediate threat to the public and
economic health and general welfare of this community, and that the surcharges and other
measures adopted herein are essential to protect said public health and welfare.
(2) This section, and the surcharges and measures adopted herein are an exercise of the city's
regulatory and police power, and the surcharges and connection fees are conservation rates
intended to meet fixed costs as a result of lost revenue.
(3) With city council approval, the city manager or designee is authorized to determine trigger
points and surcharges during Stages 2, 3 and 4 emergency water shortage conditions.
(4) In this section, institutional customer means city utility customer which operates as a not-for-
profit entity.
(5) A customer may appeal an allocation or drought surcharge triggering point established under
this section to the director of water operations or his designee on grounds of unnecessary
hardship through the process outlined in section 55-155.
(6) Reservoir system surcharge funds will first be applied towards annual debt service payments
and operating and maintenance expenses of the water department as reflected in the city
operating budget to offset revenue loss due to drought conditions. Additional funds will be
reported to city council for city council direction.
(b) Residential water customers, who are not billed through a master water meter.
(1) A monthly base amount of three thousand (3,000) gallons shall be established as a trigger
point for each customer. Water consumption up to and including this amount will not include a
drought surcharge.
(2) Above the three thousand (3,000) gallon monthly consumption trigger point, with city council
approval, a drought surcharge shall be added up to and including one hundred (100) per cent of
the customer's total monthly water bill over the allocation.
(c) Residential customers who are billed from a master water meter.
(1) Once Stage 1 condition has been declared, property managers of multi-tenant units shall notify
the city director of water operations of number of residential units in their facility for
determination of allocations. Until so notified, the city shall calculate the allocation based on two
(2) residential units per master water meter. A monthly base amount of three thousand (3,000)
gallons shall be established as a trigger point for each residential unit.
(2) When consumption for the month is less than or equal to three thousand (3,000) gallons times
the number of residential units, there will be no surcharge.
(3) With city council approval, when consumption is above the three thousand (3,000) gallons
times the number of units, a drought surcharge shall be added up to and including one hundred
(100) per cent of the customer's total monthly water bill over the allocation.
(d) Commercial or institutional customer.
(1) A monthly water usage allocation shall be established by the city manager or designee for each
commercial or institutional customer.
(2) Method of establishing allocation:
a. When the combined reservoir capacity is less than twenty (20) per cent of total capacity
(Stage 3), the commercial or institutional customer's allocation shall be ninety (90) per cent
of the customer's usage for the corresponding month's billing period during the previous
twelve(12) months prior to the implementation of Stage 1 condition.
b. If the customer's billing history is shorter than twelve (12) months, the monthly average for
the period for which there is a record shall be used for any monthly period for which no
history exists.
c. Provided, however, a customer, ninety (90) per cent of whose monthly usage is less than
six thousand (6,000) gallons, shall be allocated six thousand (6,000) gallons.
d. The city manager shall give best effort to see that notice of each commercial or institutional
customer's allocation is mailed to such customer.
e. If, however, the customer does not receive such notice, it shall be the customer's
responsibility to contact the city' utilities billing office to determine the allocation, and the
allocation shall be fully effective notwithstanding lack of receipt of written notice.
f. Upon request of the customer or at the initiative of the city manager, the allocation may be
reduced or increased by the city manager:
1. If one (1) nonresidential customer agrees to transfer part of its allocation to another
nonresidential customer; or
2. If other objective evidence demonstrates that the designated allocation is inaccurate
under present conditions.
(e) Industrial customers, who use less than one hundred thousand (100,000) gallons of water per day
for processing.
(1) A monthly water usage allocation shall be established by the city manager or designee for each
industrial customer, which uses less than one hundred thousand (100,000) gallons of water per
day for processing (e.g., an industrial customer).
(2) Method of establishing allocation.
a. When the combined reservoir capacity of Choke Canyon Reservoir and Lake Corpus
Christi is less than twenty (20) per cent of total capacity (Stage 3), the industrial customer
allocation shall be ninety (90) per cent of the customer's usage for the corresponding
month's billing period during the previous twelve (12) months prior to the implementation of
Stage 1 condition.
b. If the customer's billing history is shorter than twelve (12) months, the monthly allocation
shall be one-twelfth of ninety (90) per cent of the customer's maximum annual contracted
amount until twelve (12) months of billing history are established. However, if the industrial
customer does not have a water contract and does not have at least twelve (12) months of
billing history, then the new industrial customer will provide data regarding expected water
use and city will determine allocation based on ninety (90) per cent of expected use to
determine initial allocation until twelve (12) months of billing history are established.
c. The city manager shall give his best effort to see that notice of each industrial customer's
allocation is mailed to such customer.
d. If, however, the industrial customer does not receive such notice, it shall be the customer's
responsibility to contact the city utilities billing office to determine the allocation, and the
allocation shall be fully effective notwithstanding lack of receipt of written notice.
e. Upon request of the industrial customer or at the initiative of the city manager, the
allocation may be reduced or increased by the city manager, if:
1. The designated period does not accurately reflect the customer's normal water usage
because customer had to shut down a major processing unit for overhaul during the
period.
2. The customer has added or is in the process of adding significant additional
processing capacity.
3. The customer has shut down or significantly reduced the production of a major
processing unit.
4. The customer has previously implemented significant permanent water conservation
measures.
5. The customer agrees to transfer part of its allocation to another industrial customer.
6. Other objective evidence demonstrates that the designated allocation is inaccurate
under present conditions.
(f) Commercial customers, institutional customers, and industrial customers who use less than one
hundred thousand(100,000) gallons of water per day for processing shall pay the following reservoir
system surcharges:
(1) Customers whose allocation is six thousand (6,000) gallons through twenty thousand (20,000)
gallons per month:
a. Five dollars ($5.00) per one thousand (1,000) gallons for the first one thousand (1,000)
gallons over allocation.
b. Eight dollars ($8.00) per one thousand (1,000) gallons for the second one thousand (1,000)
gallons over allocation.
c. Sixteen dollars ($16.00) per one thousand (1,000) gallons for the third one thousand
(1,000) gallons over allocation.
d. Forty dollars ($40.00)for each additional one thousand (1,000) gallons over allocation.
(2) Customers whose allocation is twenty-one thousand (21,000) gallons per month or more:
a. One (1) times the block rate for each one thousand (1,000) gallons in excess of the
allocation up through five (5) per cent above allocation.
b. Three (3) times the block rate for each one thousand (1,000) gallons from five (5) per cent
through ten (10) per cent above allocation.
c. Five (5) times the block rate for each one thousand (1,000) gallons from ten (10) per cent
through fifteen (15) per cent above allocation.
d. Ten (10) times the block rate for each one thousand (1,000) gallons more than fifteen (15)
per cent above allocation.
e. The surcharges shall be cumulative.
f. As used herein, "block rate" means the charge to the customer per one thousand (1,000)
gallons at the regular water rate schedule at the level of the customer's allocation.
(g) Industrial customers, who use one hundred thousand(100,000)gallons or more of water per day for
processing.
(1) A monthly water usage allocation shall be established by the city manager or designee for each
industrial customer, which uses water for processing (e.g., an industrial customer).
(2) Method of establishing allocation.
a. When the combined reservoir capacity of Choke Canyon Reservoir and Lake Corpus
Christi is less than thirty (30) per cent of total capacity (Stage 2), the industrial customer
allocation shall be eighty (80) per cent of the customer's usage for the corresponding
month's billing period during the previous twelve (12) months prior to the implementation of
Stage 1 condition.
b. If the customer's billing history is shorter than twelve (12) months, the monthly allocation
shall be one-twelfth of eighty (80) per cent of the customer's maximum annual contracted
amount until twelve (12) months of billing history are established. However, if the industrial
customer does not have a water contract and does not have at least twelve (12) months of
billing history, then the new industrial customer will provide data regarding expected water
use and city will determine allocation based on eighty (80) per cent of expected use to
determine initial allocation until twelve (12) months of billing history are established.
c. The city manager shall give his best effort to see that notice of each industrial customer's
allocation is mailed to such customer.
d. If, however, the industrial customer does not receive such notice, it shall be the customer's
responsibility to contact the city utilities billing office to determine the allocation, and the
allocation shall be fully effective notwithstanding lack of receipt of written notice.
e. Upon request of the industrial customer or at the initiative of the city manager, the
allocation may be reduced or increased by the city manager, if:
1. The designated period does not accurately reflect the customer's normal water usage
because customer had to shut down a major processing unit for overhaul during the
period.
2. The customer has added or is in the process of adding significant additional
processing capacity.
3. The customer has shut down or significantly reduced the production of a major
processing unit.
4. The customer has previously implemented significant permanent water conservation
measures.
5. The customer agrees to transfer part of its allocation to another industrial customer.
6. Other objective evidence demonstrates that the designated allocation is inaccurate
under present conditions.
(h) Industrial customers using one hundred thousand (100,000) gallons or more of water per day for
processing shall pay the following drought surcharges:
(1) Customers whose allocation is eighty thousand (80,000) gallons per month or more:
a. Three (3) times the block rate for each one thousand (1,000) gallons in excess of the
allocation up through five (5) per cent above allocation.
b. Six (6) times the block rate for each one thousand (1,000) gallons from five (5) per cent
through ten (10) per cent above allocation.
c. Nine (9) times the block rate for each one thousand (1,000) gallons from ten (10) per cent
through fifteen (15) per cent above allocation.
d. Twelve (12) times the block rate for each one thousand (1,000) gallons more than fifteen
(15) per cent above allocation.
e. The surcharges shall be cumulative.
f. As used herein, "block rate" means the charge to the customer per one thousand (1,000)
gallons at the regular water rate schedule at the level of the customer's allocation.
(i) Nonresidential customer is billed from a master meter.
(1) When a nonresidential customer is billed from a master meter which jointly measures water to
multiple residential dwelling units (for example: apartments, mobile homes), the customer may
pass along any surcharges assessed under this plan to the tenants or occupants, provided that:
a. The customer notifies each tenant in writing:
1. That the surcharge will be passed along.
2. How the surcharge will be apportioned.
3. That the landlord must be notified immediately of any plumbing leaks.
4. Methods to conserve water(which shall be obtained from the city).
b. The customer diligently maintains the plumbing system to prevent leaks.
c. The customer installs water saving devices and measures (ideas for which are available
from the city)to the extent reasonable and practical under the circumstances.
(j) For residential customers, the following measures come into effect after city council approves a
drought rate surcharge; for nonresidential customers, these measures come into effect at Stage 3.
Water service to the customer may be terminated under the following conditions:
(1) Monthly residential water usage exceeds trigger point by four thousand (4,000) gallons or more
two (2) or more times (which need not be consecutive months).
(2) Monthly water usage on a master meter which jointly measures water usage to multiple
residential dwelling units exceeds trigger point by four thousand (4,000) gallons times the
number of dwelling units or more two (2) or more times (which need not be consecutive
months).
(3) Monthly nonresidential water usage for a customer whose allocation is six thousand (6,000)
gallons through twenty thousand (20,000) gallons exceeds its allocation by seven thousand
(7,000) gallons or more two (2) or more times (which need not be consecutive months).
(4) Monthly nonresidential water usage for a customer whose allocation is twenty-one thousand
(21,000) gallons or more exceeds its allocation by fifteen (15) per cent or more two (2) or more
times (which need not be consecutive months).
(5) For residential customers and nonresidential customers, after the first disconnection, water
service shall be restored upon request for a fee of fifty dollars ($50.00).
(6) For such customers, after the second disconnection, water service shall be restored within
twenty-four(24) hours of the request for a fee of five hundred dollars ($500.00).
(7) If water service is disconnected a third time for such customer, water service shall not be
restored until the city re-enters a level of water conservation less than Stage 2. For master
meter customers, the service restoration fees shall be the same as above times the number of
dwelling units.
(8) The city manager is directed to institute written guidelines for disconnection of water service
under this provision, which will satisfy minimum due process requirements, if any.
(k) It shall be a defense to imposition of a surcharge hereunder, or to termination of service, that water
used over allocation resulted from loss of water through no fault of the customer (for example, a
major water line break)for the following conditions:
(1) The customer shall have the burden to prove such defense by objective evidence (for example,
a written certification of the circumstances by a plumber).
(2) A sworn statement may be required of the customer.
(3) This defense shall not apply if the customer failed to take reasonable steps for upkeep of the
plumbing system, failed to reasonably inspect the system and discover the leak, failed to take
immediate steps to correct the leak after discovered, or was in any other way negligent in
causing or permitting the loss of water.
(I) When this section refers to allocation or water usage periods as "month," monthly," "billing period,"
and the like, such references shall mean the period in the city's ordinary billing cycle which
commences with the reading of a meter one (1) month and commences with the next reading of that
meter which is usually the next month.
(1) The goal for the length of such period is thirty (30) days, but a variance of two (2) days, more or
less, will necessarily exist as to particular meters.
(2) If the meter reader system is prevented from timely reading a meter by any obstacle which is
attributable to the customer, the original allocation shall apply to the longer period without
modification.
(Ord. No. 24396, § 1, 3-20-2001; Ord. No. 029846, § 3, 5-28-2013; Ord. No. 029946, § 1, 9-10-
2013; Ord. No. 031355, § 1, 1-30-2018; Ord. No. 031533, § 2, 9-11-2018)
Sec. 55-155. -Requests for exemptions and variances.
(a) The director of water operations or his designee, may, in writing, grant a temporary variance to any
of the provisions for water users found in this article XII upon determination that failure to grant such
variance would cause an emergency condition adversely affecting the public health, sanitation, or fire
protection for the public or person requesting such a variance.
(b) A person requesting an exemption or variance from the provisions of this article shall file request on
city-provided application for exemption/variance with the city water department within five (5) days
after a particular reservoir system response stage has been invoked. All request forms shall be
reviewed by the director of water operations or his designee, and shall include the following:
(1) Name and address of the water user(s).
(2) Purpose of water use.
(3) Specific provision(s) of the ordinance from which the water user is requesting relief.
(4) Detailed statement as to how the specific provision of the ordinance adversely affects the water
user or what damage or harm will occur to the water user or others if water user complies with
this plan.
(5) Description of the exemption or variance requested.
(6) Period of time for which the exemption or variance is sought.
(7) Alternative water use restrictions or other measures the water user is taking or proposes to
take to meet the intent of this plan and the compliance date.
(8) Other pertinent information; or as required on permit application.
(c) No exemption nor variance shall be retroactive or otherwise justify any violation of this article
occurring prior to the issuance of the exemption/variance.
(d) All requests for variances/exemptions shall be reviewed and determined within three (3) business
days of receipt of complete application.
(e) The director of water operations or his designee shall consider requests of water users for special
consideration to be given as to their respective particular circumstances and is hereby authorized to,
in special cases, grant such variance from the terms of this plan if such compliance would cause an
emergency condition adversely affecting the public health, sanitation, or fire protection for the public
or person requesting such a variance as will not be contrary to the public interest, where, owing to
special conditions, a literal enforcement of the provisions of this plan will result in unnecessary
hardship, and so that the spirit of this plan shall be observed and substantial justice done.
(f) Should a permit for special exception be granted, it shall be in effect from the time of granting
through the termination of the then current stage, unless revoked by the director of water operations
for noncompliance; provided, that the permit is prominently posted on the premises within two (2)
feet of the street number located on the premises.
(g) A person denied request for permit or exception from these rules may appeal the decision to the
assistant city manager for public works, utilities and transportation by submitting written request for
appeal to the assistant city manager within five (5) business days from issuance of denial. The
decision of the assistant city manager shall be final.
(h) Violations of any permit condition may be enforced under section 55-156.
(Ord. No. 24396, § 1, 3-20-2001; Ord. No. 24576, § 3, 9-11-2001; Ord. No. 029846, § 3, 5-28-
2013; Ord. No. 029946, § 1, 9-10-2013; Ord. No. 031355, § 1, 1-30-2018)
Sec. 55-156. -Violations, penalties, and enforcement.
(a) A violation under this article is a class C misdemeanor.Any person that violates any provision of this
article shall be subject to a fine of not more than five hundred dollars ($500.00) per violation per day.
The culpable mental state required by V.T.C.A., Penal Code § 6.02 is specifically negated and
dispensed with and a violation of this article is a strict liability offense.
(b) The commission of a violation of each provision, and each separate violation thereof, shall be
deemed a separate offense, in and upon conviction thereof, shall be fined as hereinabove provided.
(c) If any person or a second person in the same household or premises, is found guilty of a second
violation of this article, the water superintendent shall be authorized to discontinue water service to
the premises where such violation occurs.
(d) Cases filed under this section shall be expedited and given preferential setting in municipal court
before all other cases.
(e) Any person whose name is on file with the utilities billing office as the customer on the water
account for the property where the violation occurs or originates shall be presumed to be the violator,
and proof that the violation occurred on said premises shall constitute prima facie evidence that the
customer committed the violation, but said customer shall have the right to show that he did not
commit the violation.
(f) If any person fails to respond to a citation or summons issued for a violation of this article within the
time allowed, upon receipt of notice from the director or a judge of the municipal courts, the water
superintendent is authorized to discontinue water service to the premises where such violation
occurs.
(Ord. No. 24396, § 1, 3-20-2001; Ord. No. 24576, § 4, 9-11-2001; Ord. No. 029846, § 3, 5-28-
2013; Ord. No. 029946, § 1, 9-10-2013)
Sec. 55-157. - Effluent distribution; permit and regulations.
(a) Upon implementation of the City of Corpus Christi Water Conservation Plan as provided in this
section, the city may make available effluent water discharged from its sewage treatment plants for
the purpose of watering lawns, grass, and other plants, dust control and similar uses.
(1) Such effluent water shall be made available only under the terms and conditions herein
provided and only to such persons as are duly permitted as distributors as provided in this
section.
(2) The city shall be under no obligation to provide such effluent and reserves the right to
discontinue such service at any time and to limit the volume and to establish or alter loading
procedures and/or locations as necessary for the efficient administration of the wastewater
division.
(b) No effluent distribution permit shall be issued except upon application filed with the wastewater
division of the city. Every such application shall contain the following information:
(1) Name of applicant.
(2) Name of authorized representative (e.g., president of corporation; partner, etc.) if applicant is
other than an individual.
(3) Business address and phone number.
(4) Residence address and phone number of authorized individual representative.
(5) Description of each vehicle and container unit to be used in the transportation or distribution of
effluent water, including the make, year, model, type, weight and gross vehicle weight, container
capacity in gallons, vehicle registration number, and the state safety inspection certificate
number and expiration date.
(6) Names and driver's license number of every proposed driver of such vehicles.
(7) Statement of previous use of container units and any proposed use after or concurrently with
such units use for effluent distribution.
(8) Statement of the proposed uses of any effluent water, including whether the use is proposed
for residential, commercial, or industrial purpose.
(c) Upon the filing of the required application, and payment of the permit fee specified herein for each
container unit, the wastewater superintendent, or the superintendent's designee, shall upon his
determination that the applicant and vehicles and container units are in compliance with all
applicable provisions of this article, issue a permit for each such container unit.
(1) The permit shall identify the particular unit for which it is issued and shall be displayed in a
prominent place upon the unit.
(2) Each unit shall be separately permitted.
(d) The permit fee shall be fifty dollars ($50.00) per month for each unit plus five dollars ($5.00) per
month for each unit per one thousand (1,000) gallons of capacity (or portion thereof) over the first
one thousand (1,000)gallons of capacity.
(e) Permits shall be issued on a quarterly basis from the effective date of this plan; fee proration shall
be on a monthly basis.
(f) Notwithstanding subsection (g) of this section, a resident of the City of Corpus Christi may obtain
effluent at no charge from a wastewater treatment plant, designated by the wastewater
superintendent, for the irrigation of vegetation, dust control, or watering a foundation at the
individual's personal residence.
(1) Any effluent received under this subsection may not be sold or transferred to another individual
or used for commercial purposes.
a. Before receiving effluent the resident must obtain a permit from the wastewater
superintendent, or the superintendent's designee.
b. Prior to receiving a permit, the resident must complete a course of instruction on the
handling of wastewater effluent that has been developed by the city's health department.
c. Any container used to receive and transport effluent must have a lid or cap, be watertight,
and be properly secured to the vehicle.
d. All containers are subject to inspection and approval of the city health department or
wastewater department.
e. Any effluent received under this subsection must be immediately transported to the
personal residence of the individual receiving the effluent and used for the irrigation of
vegetation, dust control, or watering a foundation.
f. The effluent may not be stored for future use.
g. A resident using effluent for the irrigation of vegetation or dust control must post a sign on
the property legible from the street stating that effluent is being used on the property.
h. Every resident obtaining effluent under this subsection must either:
1. Provide proof of and maintain in force a property liability insurance policy
(homeowner/renter) in the amount of three hundred thousand dollars ($300,000.00)
per occurrence; or
2. Sign a form provided by the superintendent that releases the City of Corpus Christi
from any liability resulting from the resident's improper use or transportation of the
effluent and agree to hold the city harmless, including reimbursing the city for the
costs of defending itself.
(g) Every effluent distribution permit shall be subject to the following terms and conditions and no
person shall receive or distribute effluent water except in compliance herewith:
(1) Container units or tanks shall have a minimum capacity of five hundred (500) gallons; shall be
capable of being closed water-tight and shall be so closed during transport of effluent water;
and shall be maintained in a leak-proof condition; provided, however, that special permits may
be issued for container units with a capacity of less than five hundred (500) gallons upon the
determination by the wastewater division superintendent that all other container unit
specifications herein required have been met and that the particular container unit does not
create an increased risk to the public health and safety.
(2) No vehicle may be used in connection herewith which has not been reported on the application
and approved for such use.
(3) Every driver or handler must be certified by the wastewater division prior to receiving any
effluent water from the city.
a. The wastewater division may certify a driver or handler who has completed a course of
instruction on the handling of wastewater effluent that has been developed by the city's
health department.
(4) Effluent water shall be used as soon as possible to prevent regrowth of bacteria.
a. Permittees shall check effluent water in their units not less than every four (4) hours for
chlorine residual, except for effluent stored in fixed-site containers which shall be checked
not less than every eight(8) hours.
(5) Chlorine residuals shall be maintained at one (1) milligram per liter (parts per million) [one (1)
mg/one (I) (ppm)], consistent throughout the effluent container.
(6) The minimum quality of the effluent must not exceed conditions on the use of effluent set out in
any permits or authorizations issued to the city by a federal or state regulatory agency or the
applicable regulations of a federal or state regulatory agency.
(7) Effluent containers, including those used for storage, shall be subject to inspection and
approval of the city health department or wastewater division, whose inspectors are hereby
authorized to prohibit the use of any container or effluent water which is determined to be
outside the parameters established in this section or is otherwise determined to present a
danger to public health.
(8) Every permittee shall provide proof of, and shall maintain in force, a policy of comprehensive
general liability insurance in the amount specified by the city's risk manager under section 17-
19; or shall maintain a policy of general business liability insurance in the same or greater
amount with a contractual liability endorsement; and shall maintain a policy of automobile
liability insurance in the minimum amounts set by state law. The city shall be named as an
additional insured on the general liability insurance policies.
(9) By acceptance of a permit under this section and/or receipt of effluent water from the city
system, the permittee and/or recipient of such effluent agree to fully indemnify, save and hold
harmless, the City of Corpus Christi, Texas, its agents and employees, from and against all
claims and actions, and all expenses incidental to the investigation and defense thereof, based
upon or arising out of damages or injuries to person or property in any way related to or in
connection with the use or distribution of effluent water under this section.
(10) Permittees shall provide a written notice to every person to whom effluent is furnished which
shall state in not less than 10-point type, substantially as follows:
"CAUTION"
"You are hereby advised that effluent water is the discharged water from a sewage treatment
plant. The Director of Public Health has determined that improper use or handling could be
harmful and recommends the following precautions:
1. Do not use effluent water for drinking, bathing, or personal hygiene purposes.
2. Do not use effluent water for washing autos, clothes, or other personal contact items.
3. Do not use effluent water in swimming pools or for similar recreational uses.
4. Do not allow children to play on grass wet with effluent water, wait until it dries.
5. Do not use effluent which has been stored for more than four (4) hours unless the chlorine
residual level has been tested and is not less than one (1) part per million [one (1) mg/one
(1)(p.m.)].
6. Application of effluent shall be by coarse stream and shall not be by fine spray."
(h) Violation of any of the cautions set forth in subsection (g)(10) of this section, by any person, is a
violation of this section.
(i) Violation of any of the provisions of this section, in addition to the general penalties provided in this
particle, shall result in denial or revocation of any such violator's effluent distribution permit.
(Ord. No. 24396, § 1, 3-20-2001; Ord. No. 24576, § 4, 9-11-2001)
Editor's note—Formerly numbered § 55-158.
Sec. 55-158. -Operations plan for reservoir system.
To maximize the amount of water reliably available to the city and its water customers, the city
manager shall operate the Lake Corpus Christi/Choke Canyon Reservoir System as follows:
(1) A minimum of two thousand (2,000) acre-feet per month will be released from Choke Canyon
Reservoir to meet conditions of the release agreement between the City of Corpus Christi and
the Texas Parks and Wildlife Department.
(2) In order to provide maximum dependable yield from the two (2) reservoirs, the water level in
Lake Corpus Christi will be allowed to drop to elevation seventy-four (74) feet before water is
released from Choke Canyon Reservoir in excess of the two thousand (2,000) acre-feet per
month requirement.
(3) Under the agreed order of the Texas Natural Resource Conservation Commission under
Certificate of Adjudication No. 21-3214, city shall: (1) reduce targeted inflows of water to
Nueces Bay to one thousand two hundred (1,200) acre-feet when reservoir system storage falls
below forty (40) per cent of capacity; and (2) suspend targeted inflows when reservoir system
storage falls below thirty (30) per cent of capacity.
(Ord. No. 24396, § 1, 3-20-2001; Ord. No. 24576, § 4, 9-11-2001; Ord. No. 029846, § 3, 5-28-
2013; Ord. No. 029946, § 1, 9-10-2013)
Sec. 55-159. - Procedures for allocating water to raw water and wholesale treated water customers on a
pro rata basis during a water shortage.
(a) In the event that the triggering criterion specified in section 55-152 for Stage 2 have been met, the
city manager, or designee, is hereby authorized to initiate allocation preparations of water supplies
on a pro rata basis to raw water and wholesale treated water customers in accordance with V.T.C.A.,
Water Code§ 11.039.
(1) A raw water or wholesale treated water customer's monthly allocation shall be a percentage of
the customer's water usage baseline. The percentage will be set by resolution of the city council
based on the city manager's assessment of the severity of the water shortage condition and the
need to curtail water diversions and deliveries, and may be adjusted periodically by resolution of
the city council as conditions warrant. Once pro rata allocation is in effect, water diversions by
or deliveries to each raw water or wholesale treated water customer shall be limited to the
allocation established for each month.
(2) A monthly water usage allocation shall be established by the city manager, or the city
manager's designee, for each raw water or wholesale treated water customer. The raw water or
wholesale treated water customer's water usage baseline will be computed on the average
water usage by month for the previous five-year period. If the raw water or wholesale treated
water customer's billing history is less than five (5) years, the monthly average for the period for
which there is a record shall be used for any monthly period for which no billing history exists.
(3) The city manager shall provide notice, by certified mail, to each raw water or wholesale treated
water customer informing them of their monthly water usage allocations and shall notify the
news media and the Executive Director of the Texas Commission on Environmental Quality
upon initiation of pro rata water allocation.
(4) Upon request of the raw water or wholesale treated water customer or at the initiative of the
city manager, the allocation may be reduced or increased if:
a. The designated period does not accurately reflect the raw water or wholesale treated water
customer's normal water usage;
b. The customer agrees to transfer part of its allocation to another raw water or wholesale
treated water customer; or
c. Other objective evidence demonstrates that the designated allocation is inaccurate under
present conditions. A customer may appeal an allocation established under this section to
the City Council of the City of Corpus Christi.
(b) Pro rata surcharges and enforcement.
(1) During any period when pro rata allocation of available water supplies is in effect, wholesale
customers shall pay the following surcharges on excess water diversions:
a. Two (2.0) times the normal water charge per unit for water diversions and/or deliveries in
excess of the monthly allocation up through five (5) per cent above the monthly allocation.
b. Two and one-half (2.5) times the normal water charge per unit for water diversions and/or
deliveries in excess of the monthly allocation from five (5) per cent through ten (10) per
cent above the monthly allocation.
c. Three (3.0) times the normal water charge per unit for water diversions and/or deliveries in
excess of the monthly allocation from ten (10) per cent through fifteen (15) per cent above
the monthly allocation.
d. Three and one-half(3.5) times the normal water charge per unit for water diversions and/or
deliveries more than fifteen (15) per cent above the monthly allocation.
(c) Variances.
(1) The city manager, or the city manager's designee, may, in writing, grant a temporary variance
to the pro rata water allocation policies provided by this section if it is determined that failure to
grant such variance would cause an emergency condition adversely affecting the public health,
welfare, or safety, and if one (1) or more of the following conditions are met:
a. Compliance cannot be technically accomplished during the duration of the water supply
shortage or other condition for which the plan is in effect.
b. Alternative methods can be implemented which will achieve the same level of reduction in
water use.
(2) Raw water or wholesale treated water customers requesting an exemption from the provisions
of this section shall file a petition for variance with the city manager within five (5) days after pro
rata allocation has been invoked.
(3) All petitions for variances shall be reviewed by the city council, and shall include the following:
a. Name and address of the petitioner(s).
b. Detailed statement with supporting data and information as to how the pro rata allocation of
water under the policies and procedures established in this section adversely affects the
petitioner or what damage or harm will occur to the petitioner or others if petitioner
complies with this section.
c. Description of the relief requested.
d. Period of time for which the variance is sought.
e. Alternative measures the petitioner is taking or proposes to take to meet the intent of this
section and the compliance date.
f. Other pertinent information.
(4) Variances granted by the city council shall be subject to the following conditions, unless waived
or modified by the city council:
a. Variances granted shall include a timetable for compliance.
b. Variances granted shall expire when the pro-rata allocation of water to raw water or
wholesale treated water customers is no longer in effect, unless the petitioner has failed to
meet specified requirements.
c. No variance shall be retroactive or otherwise justify any violation of this section occurring
prior to the issuance of the variance.
(d) Contractual remedies not affected. Nothing in this section supersedes any remedies available to the
city under any contract with a raw water or wholesale treated water customer due to the customer's
failure to adopt or impose water conservation measures required by the contract.
(Ord. No. 24605, § 1, 10-9-2001; Ord. No. 029846, § 3, 5-28-2013; Ord. No. 029946, § 1, 9-10-
2013; Ord. No. 031355, § 1, 1-30-2018)
Editor's note—Formerly numbered § 55-159.1.
Sec. 55-159.1. - Non-mandatory drought surcharge exemption fee.
(a) Establishment of non-mandatory "drought surcharge exemption fee" effective October 1, 2018.
Large-volume industrial customers may voluntarily pay a non-mandatory and non-refundable"
drought surcharge exemption fee" or "fee" of twenty-five cents ($0.25) per one thousand (1,000)
gallons of water per month to be exempt from the applicable allocation surcharges of city Code
section 55-154 during the month of billing. The city will begin to charge the fee as of October 1, 2018
to all large-volume industrial customers. The fee will be charged with the large-volume industrial
customer's regular monthly water bill which is due as stated on the bill. By payment of the fee, the
large-volume industrial customer has determined that the fee is fair,just, and reasonable.
Note—For purposes of this section 55-159.1 the term "large-volume industrial customer" shall
mean a utility customer who uses water in minimum quantity of one hundred thousand(100,000)
gallons a day in processes designed to convert materials of a lower order of value into forms
having greater usability and commercial value, including the development of power by means
other than hydroelectric, but does not include agricultural use.
(b) Notice of opt-out. A large-volume industrial customer may opt out of the drought surcharge
exemption fee (or "fee") by providing written notice to the city manager. A large-volume industrial
customer is deemed to have opted out of the fee as of the date payment of the fee remains
delinquent after notice and opportunity to cure. A large-volume industrial customer who has opted
out of said fee is subject to aforementioned allocation surcharges of city Code section 55-154 in
addition to compliance with all applicable city ordinances.
(c) Request to opt back into the drought surcharge exemption fee or "fee". There is no right nor
entitlement to opt back into the fee. The city manager or designee retains sole discretion to
determine whether granting large-volume industrial customer's request to opt back into the fee is in
the best interest of the city. At a minimum, the large-volume industrial customer will be required to
comply with the following mandatory conditions:
(1) The large-volume industrial customer must submit a written request to the city manager to
request to opt back into the drought surcharge exemption fee subject to city manager review.
(2) Upon receipt of invoice, the large-volume industrial customer must timely pay the drought
surcharge exemption fees calculated on said customer's actual water usage from date of city's
receipt of written request back to said customer's date of opt out, up to a maximum of ten (10)
years.
(3) The large-volume industrial customer remains subject to compliance with the aforementioned
allocation surcharge provisions of the city Code as may be amended and all other applicable
ordinances, rules and regulations of the city for the mandatory reinstatement period of twenty-
four (24) months. The mandatory reinstatement period begins upon date of notice from the city
to said customer and continues for twenty-four (24) consecutive calendar months. During the
reinstatement period, the large-volume industrial customer will timely pay a non-refundable
reinstatement fee of twenty-five cents ($0.25) per one thousand (1,000) gallons of water upon
receipt of invoice. By payment of said reinstatement fee, the large-volume industrial customer
has determined that the fee is fair,just, and reasonable.
(4) Despite compliance with these conditions, the large-volume industrial customer will not be
allowed to opt back into the fee when the combined storage level of the Choke Canyon
Reservoir and Lake Corpus Christi declines below forty (40) per cent.
(d) Dedicated use of the drought surcharge exemption fees.
(1) The fee shall be dedicated by the city for development of a drought-resistant water supply and
shall not be used for operation and maintenance costs of any water supply, treatment facility or
distribution system.
(2) The fee paid to the city will be reserved in a separate account ("account") and used only for
capital costs to develop and/or acquire an additional drought-resistant water supply including,
but not limited to, payment of debt for an allowable capital project.
(3) The city manager may execute documents necessary for the establishment of a dedicated
fund.
(e) Review and adjustment of the drought surcharge exemption fee. The fee shall be reviewed and
adjusted by city council action no more frequently than every five (5) years. Any subsequent fee
increase is limited to increases based upon changes to the following Consumer Price Index: CPI-All
Urban Consumers (Current Series) for water and sewer and trash collection services in U.S. city
average, all urban consumers.
(f) Participation by wholesale water suppliers. A wholesale water supplier with a water supply contract
with the city may choose to establish an identical voluntary drought surcharge exemption fee and
standard agreement for its large-volume industrial customers with said fee and agreement to be
equivalent to the ordinance and standard agreement adopted by the City of Corpus Christi. Upon
adoption of said identical voluntary drought surcharge exemption fee and standard agreement for its
large-volume industrial customers, the wholesale water supplier shall assess and collect the fees
from its large-volume industrial customers and then remit said fees to the city. In addition, the
wholesale water supplier shall notify the city manager or designee of the volume of water used by its
large-volume industrial customers each month.
(g) The city manager may execute letters of commitment and standard agreements regarding payment
and use of drought surcharge exemption fee with terms consistent with this section 55-159.1 (i.e., an
"agreement"). The agreement may be terminated by the city upon five (5) years' notice to terminate
the agreement. A copy of the standard agreement is attached as an exhibit to the ordinance which
enacted this section 55-159.1. The city manager is authorized to adjust the terms of the standard
agreement as long as said adjustments are consistent with the terms of this section 55-159.1 and
said adjustment is made available to all large-volume industrial customers participating in the
drought surcharge exemption fee.
(h) The drought surcharge exemption fee established by this section 55-159.1 continues to be billed
and paid except during periods when the balance in the account exceeds one hundred fifty million
dollars ($150,000,000.00), to be adjusted annually for inflation by the following Consumer Price
Index: CPI-All Urban Consumers (Current Series) for water and sewer and trash collection services
in U.S. city average, all urban consumers. While balance exceeds one hundred fifty million dollars
($150,000,000.00) the city will cease billing and collection of the fee and the large-volume industrial
customer remains exempt from the allocation surcharges.
(i) The city may repeal this section 55-159.1 upon at least five (5) years' notice to the then participating
large-volume industrial customers and participating wholesale water suppliers.
(j) Upon city's repeal of this section 55-159.1 or city's termination of the agreement, any unencumbered
balance remaining in the account will be returned to the then-participating large-volume industrial
customers and then-participating wholesale water suppliers on a pro-rata basis.
(k) The large-volume industrial customer paying the drought surcharge exemption fee established by
this section 159.1 is exempt from city curtailment of water during reservoir system Stages 1, 2, and
3, except when such curtailment is required by V.T.C.A., Water Code § 11.039 or required by other
applicable state laws and state regulations.
(Ord. No. 031533, § 3, 9-11-2018)
Appendix F
CITY OF CORPUS
CHRISTI
MODEL INDUSTRIAL WATER
CONSERVATION PLAN
2020
Prepared by:
Freese and Nichols, Inc.
4055 International Plaza
Suite 200
Fort Worth, TX 76109
817-735-7300
FOREWORD
This Model Industrial Water Conservation Plan was prepared by Freese and Nichols for the City of
Corpus Christi as an addendum to the 2019 Water Conservation Plan. It is intended as a model
water conservation plan for industrial customers highlighting best management practices that
could be implemented for those industrial customers who are required to submit individual water
conservation plans to the Texas Commission on Environmental Quality (TCEQ). The Model
Industrial Water Conservation Plan was prepared pursuant to TCEQ rules.
The City of Corpus Christi has many industrial users with widely varying processes and water uses,
and it is difficult to generate a model plan that is applicable for all industries. This model plan
provides best managements practice that an industrial customer may implement to reduce water
consumption.
Questions regarding this Model Industrial Water Conservation Plan should be addressed to the
following:
Esteban Ramos
Water Resource Manager
City of Corpus Christi, Water Utilities Department
(361)826-3294
estebanr2@cctexas.com
This Model Industrial Water Conservation Plan is based on the Texas Administrative Code in effect
on October 16, 2019 and considers water conservation best management practices from the
Texas Water Development Board's Best Management Practices for Industrial Water Users.
Currently, the Water Conservation Advisory Council (WCAC) is reviewing additional Best
Management Practices (BMPs)for industrial water users.
TABLE OF CONTENTS
1. INTRODUCTION AND OBJECTIVES 1-1
2. TEXAS COMMISSION ON ENVIRONMENTAL QUALITY RULES 2-1
3. DESCRIPTION OF WATER USE IN THE PRODUCTION PROCESS 3-1
3.1 City of Corpus Christi Sources and Industrial Water Use Description 3-1
3.2 Model Industrial Water Conservation Plan Description of Water use in the
Production Process 3-2
4. SPECIFICATION OF WATER CONSERVATION GOALS 4-1
4.1 City of Corpus Christi Water Conservation Plan Goals 4-1
4.2 Model Industrial Water Conservation Plan Specification of Water
Conservation Goals 4-1
5. ACCURATE METERING TO MEASURE AND ACCOUNT FOR WATER 5-1
5.1 City of Corpus Christi Metering to Measure and Account for Water 5-1
5.2 Model Industrial Water Conservation Plan Metering to Measure and Account
for Water 5-1
6. LEAK DETECTION,REPAIR,AND WATER LOSS ACCOUNTING 6-1
6.1 City of Corpus Christi Leak Detection, Repair, and Water Loss Accounting. 6-1
6.2 Model Industrial Water Conservation Plan Metering to Measure and Account
for Water 6-1
7. WATER USE EFFICIENCY PROCESS AND/OR EQUIPMENT UPGRADES 7-1
7.1 Model Industrial Water Conservation Plan Water Use Efficiency Process
and/or Equipment Upgrades 7-1
8. OTHER CONSERVATION PRACTICES,METHODS,OR TECHNIQUES 8-1
8.1 Model Industrial Water Conservation Plan Other Conservation Practices,
Methods or Techniques 8-1
9. IMPLEMENTATION AND UPDATE OF THE MODEL WATER CONSERVATION PLAN 9-1
9.1 City of Corpus Christi Implementation and Update of the Model Water
Conservation Plan 9-1
9.2 Model Industrial Water Conservation Plan Implementation and Updates 9-1
APPENDICES
APPENDIX A List of References
APPENDIX B Texas Commission on Environmental Quality Rules on Industrial or
Mining Use Water Conservation Plans
• Texas Administrative Code Title 30, Part 1, Chapter 288, Subchapter
A, Rule§288.3
APPENDIX C TCEQ Industrial Water Conservation Plan
APPENDIX D Council Resolution Adopting the Model Industrial Water Conservation
Plan
APPENDIX E Letter to the Region N Water Planning Group
i
City of Corpus Christi
Model Industrial Water Conservation Plan
2020
1. INTRODUCTION AND OBJECTIVES
Water supply has always been a key issue in the development of Texas. In recent years,the increasing
population and economic development in Corpus Christi have led to growing demands for water
supplies. At the same time, local and less expensive sources of water supply are largely developed.
Additional supplies to meet higher demands will be expensive and difficult to develop. It is therefore
important that efficient use of existing supplies is emphasized to make them last as long as possible.
Recognizing the need for efficient use of existing water supplies, the Texas Commission on
Environmental Quality (TCEQ) has developed guidelines and requirements governing the
development of water conservation plans for industrial or mining uses(Appendix B)1.
This Model Industrial Water Conservation Plan includes measures that are intended to result in
ongoing, long-term water savings. Best management practices established by the Texas Water
Development Board were also considered in the development of the water conservation measures2.
This Model Industrial Water Conservation Plan addresses all of the elements required by TCEQ.
Each industrial user should customize the details to match its unique situation.At a minimum, an
industry's conservation plan should include:
• Setting five-year and ten-year goals for water use (Section 4).
• Completing a water conservation implementation report (Section 9).
• Adopting policies or regulations approving the model plan (Section 9).
The final adopted version should be provided to the City of Corpus Christi and the TCEQ.
The objectives of this model plan are:
• To reduce water consumption from the level that would prevail without conservation
efforts.
• To reduce the loss and waste of water.
• To improve efficiency in the use of water.
• To document the level of recycling and reuse within the industrial processes and for non-
potable uses.
The model plan lists the TCEQ rules; describes industrial customers for the City of Corpus Christi;
provides recommendations for setting conservation goals; describes water measurement devices
and methods; discusses leak detection, repair, and water loss accounting; and reports existing and
future water use efficiency practices.
1 Superscripted numbers match references listed in Appendix A.
I-1
2. TEXAS COMMISSION ON ENVIRONMENTAL QUALITY RULES
The TCEQ rules governing development of water conservation plans for industrial or mining use are
contained in Title 30,Part 1,Chapter 288,Subchapter A,Rule 288.3 of the Texas Administrative Code
(TAC).Applicable TAC rules are presented in Appendix B.Holders of an existing permit,certified filing,
or certificate of adjudication for the appropriation of surface water in the amount of 1,000 acre-feet
a year or more for industrial uses must develop,submit,and implement a water conservation plan.
A water conservation plan is defined as "A strategy or combination of strategies for reducing the
volume of water withdrawn from a water supply source,for reducing the loss or waste of water,for
maintaining or improving the efficiency in the use of water,for increasing the recycling and reuse of
water, and for preventing the pollution of water. A water conservation plan may be a separate
document identified as such or may be contained within another water management document(s)3."
Conservation Plan Requirements
The minimum requirements in the TAC Title 30,Part 1,Chapter 288 for water conservation plans for
industrial or mining uses are shown below.
TAC Reference Subject Plan Location
30 TAC§288.3(a)(1) Water Use in the Production Process Section 3
30 TAC§288.3(a)(2) Water Conservation Goals Section 4
30 TAC§288.3(a)(3) Accurate Metering Section 5
30 TAC§288.3(a)(4) Leak Detection, Repair, and Water Loss Section 6
Accounting
30 TAC§288.3(a)(5) Water Use Efficiency Process and/or Equipment Section 7
Upgrades
30 TAC§288.3(a)(6) Other Conservation Practices Section 8
30 TAC§288.3(b) Review and Update of Plan Section 9
30 TAC§288.30(2) Water Conservation Implementation Report Section 9
TCEQ has also developed a Water Conservation Model Plan for Industrial Use4 which is available on
their website that meets the requirements listed above.
2-1
3. DESCRIPTION OF WATER USE IN THE PRODUCTION PROCESS
3.1 City of Corpus Christi Water Sources and Industrial Water Use Description
The City of Corpus Christi utilizes multiple sources from multiple river basins.Current sources include
• Lake Corpus Christi via the Nueces River(Nueces River Basin)
• Choke Canyon Reservoir via the Nueces River(Nueces River Basin)
• Lake Texana via the Mary Rhodes Pipeline (Lavaca River Basin)
• Colorado River via the Mary Rhodes Pipeline(Colorado River Basin)
All the current sources are treated at the O.N. Stevens Water Treatment Plant before distribution
Separating treated demand by customer class, industrial customers represent the highest demand.
accounting for 49 percent of the total. Figure 3-1 below shows the 2019 water use percentage by
customer class for the City of Corpus Christi.
Figure 3-1:Water Use Percentage By Customer Class
11,
■ Residential ■ Institutional ■ Commercial ■ Industrial
In 2019, there was approximately 110,217 treated water connections. These connections can be
divided into the customer classes of residential,multi-family,commercial,industrial,wholesale,and
institutional. Both institutional (1,307 connections) and industrial (31 connections) customers
have so few connections that they constitute only a small percentage of the total connections.
Residential Single-Family customers make up the largest percentage of connections with over 90
percent of the total.
3-1
Table 3-1:Annual Water Use for the Five Highest Volume Retail Customers
Customer Water Use Annual Water
Category Use Gallons
Valero Corporation Industrial 5,238,887,000
Citgo Corporation Industrial 1,359,335,000
Flint Hills Resources Industrial 1,191,964,548
Lyondell Besell Industrial 1,774,217,000
Corpus Christi Cogeneration Industrial 590,475,000
3.2 Model Industrial Water Conservation Plan Description of Water use in the Production
Process
[Insert a description of water use in the production process. Show a schematic of the production
process with all water use locations and flowrates.
This section must include a description of the use of the water in the production process, including
how the water is diverted and transported from the source(s)of supply, how the water is utilized in
the production process,and the estimated quantity of water consumed in the production process and
therefore unavailable for reuse, discharge, or other means of disposal.]
3-2
4. SPECIFICATION OF WATER CONSERVATION GOALS
4.1 City of Corpus Christi Water Conservation Plan Goals
The City of Corpus Christi has set five and ten-year goals in the 2019 Water Conservation Plan as
shown in Table 4-1. Reducing water consumption at industrial facilities will help to achieve this goal.
Table 4-1:City of Corpus Christi Targets and Goals
Achieve Date Target for Total Target for Water Target for Water
GPCD Loss(Gallons) Loss Percentage
Five-Year Target 195 1,611,000,000 6.6
Date:2024
Ten-Year Target 184 1,487,000,000 6.5
Date:2029
4.2 Model Industrial Water Conservation Plan Specification of Water Conservation Goals
This section must include specification of 5-year and 10-year water conservation goals and the basis
for development of such goals. The goals established by an industrial user under this subparagraph
are not enforceable.
To determine feasible water conservation goals, to provide the basis for these goals, and to identify a
schedule for conservation savings, a four-step water conservation implementation process may be
completed:
1. The first step consists of a water audit for the industrial facility.A water audit consists of an
inventory of all water supplied to the site and all on-site water uses,including the amount of
water used for each purpose.A comparison of the water supplied to the water used will reveal
the amount of water loss. Water loss should be no more than 6.0 percent of total water
supplied.
2. The second step is to identify sources of water waste and to design procedures to reduce
water waste and minimize water loss. Water waste reduction measures may include reducing
flow to process equipment, installing pressure-reducing valves, installing control or limit
switches, or other measures.
3. The third step is to identify methods to conserve water use in the industrial process,landscape
irrigation, and other water uses. Emphasize water conservation methods that address the
largest water uses identified in the audit step.Conservation methods could involve upgrading
to water-efficient process equipment, water-wise landscaping, retrofit of domestic plumbing
fixtures with water-efficient fixtures, employee education, and other methods.
4. The fourth step is to identify opportunities to reuse process water.At the end of the process,
is the water quality suitable for other uses?Is it economical to provide water treatment to
improve the water quality to make it suitable for other uses?
Based on the findings of the first four steps,set five and ten-year goals similar to the example below.
4-1
The[Company/Facility Name]has set a five-year goal of reducing water use to ac-ft/yr by
[five years from date of plan]and a ten-year goal of reducing water use to ac-ft/yr by [ten
years from date of plan]. These goals will be achieved using the following water conservation
methods:
In response to a charge by the 82nd Texas Legislature, the Texas Water Development Board and the
TCEQ in consultation with the Water Conservation Advisory Council, developed water use and
calculation methodology for preparation of water use reports and water conservation plans in
accordance with TCEQ rules. The guidance documents contains a chapter on developing and
evaluating water use in the industrial sector,including identifying total water use,appropriate metrics
for evaluating water use, factors that may affect industrial water use, establishment of water
conservation goals,and measurement of water savings.
4-2
5. ACCURATE METERING TO MEASURE AND ACCOUNT FOR WATER
5.1 City of Corpus Christi Metering to Measure and Account for Water
One of the key elements in water conservation is careful tracking of water use and control of losses.
In order to carefully track and control losses, the City of Corpus Christi meters water entering
industrial facilities within an accuracy of plus or minus 5.0 percent.Meter type and sizing varies based
on the industrial facility.
5.2 Model Industrial Water Conservation Plan Metering to Measure and Account for Water
[Insert a description of meter locations;meter types;meter calibration frequency;meter calibration
tolerance; and meter data collection, tabulation, and storage. Refer to the water use diagram as
necessary.
This section must include a description of the device(s)and/or method(s) within an accuracy of plus
or minus five percent to be used to measure and account for the amount of water diverted from the
source of supply.
To assist in tracking of water usage, consider installing additional meters at key locations in the
industrial process,particularly if water loss is greater than 5 percent.]
5-1
6. LEAK DETECTION,REPAIR,AND WATER LOSS ACCOUNTING
6.1 City of Corpus Christi Leak Detection,Repair,and Water Loss Accounting
The Water Department has a full team of employees committed to identifying and repairing leaks in
water distribution throughout the City.A crew of round-the-clock responders follow the procedure
below to find and fix a leak:
1. A first responder is sent to the location to identify and mark the priority of the leak. Response
time is 30 minutes to an hour.
2. Crews begin to turn the needed valves to isolate the leaking line. Line locates are called in to
mark all other utility lines in the area of the leak prior to repairs. Depending on the severity
of the leak these locates can take up to approx. 24 hours
3. After line locates are complete, Distribution Leak crews respond to the leak and make all
needed repairs.
4. After repairs are complete,the D&D crews back fill the area and replace grass as needed.
As with any aging infrastructure system,the City does have water loss between the treatment plant
and the point of use. In order to reduce this water loss, the City performs an annual system water
audit. This estimate of system water efficiency is achieved by comparing water delivered to the
treatment plant, potable water produced, and water sold. The Water Department tracks numerous
leak detection and repair activities and is able to evaluate its success using the asset management
software to compile and track work orders. Using this data from the audit,the City is able to focus on
specific areas where improvements in efficiency can be achieved.
The City of Corpus Christi has five-year goal to maintain water loss below 6.5 percent and a ten-year
goal to maintain water loss below 6.0 percent.The City encourages its industrial customers to adopt
similar goals.
6.2 Model Industrial Water Conservation Plan Metering to Measure and Account for Water
[This section must include a description of leak-detection, repair, and water loss accounting in the
water distribution system. Please amend the description below to match operations at your facility.
Plant personnel are encouraged to observe leaks as they operate and maintain facilities throughout
the day. Inspection of aboveground piping and pump packing should be a normal part of employee
duties. In addition,flow meter readings should be logged on a daily basis. If a water leak is indicated
by any of the above means, the source of the leak should be investigated and a work order for repairs
should be issued as necessary.
Consider implementing an active leak detection and repair program if water loss is greater than 6.0
percent which is consistent with the City's ten-year goal.]
6-1
7. WATER USE EFFICIENCY PROCESS AND/OR EQUIPMENT UPGRADES
7.1 Model Industrial Water Conservation Plan Water Use Efficiency Process and/or
Equipment Upgrades
[This section must include a description of equipment and/or process modifications to improve water
use efficiency.
It is suggested that each facility include a description of existing water-efficient equipment or
processes to demonstrate any water conservation savings that is already being achieved.
Equipment upgrades or process modifications should be a result of the third step in the four-step
process recommended in Section 4.]
7-1
8. OTHER CONSERVATION PRACTICES, METHODS,OR TECHNIQUES
8.1 Model Industrial Water Conservation Plan Other Conservation Practices,Methods or
Techniques
[This section must include any other water conservation practice, method, or technique which the
user shows to be appropriate for achieving the stated goal(s)of the water conservation plan.
Other sections emphasize process water usage,equipment upgrades,and process modifications. This
section should report on proposed conservation practices, methods, or techniques that address other
water uses,such as domestic water use, housekeeping water use, and landscape irrigation.
The water audit in Section 4 should include a survey of landscape irrigation water use. This includes
measurement of the landscape area, measurement of the total irrigable area, irrigation system
checks and distribution uniformity analysis, and review or development of irrigation system
scheduling. The water use survey should identify currently irrigated areas where irrigation can be
discontinued due to low visibility or the plant materials that do not need supplemental irrigation. The
survey should also identify areas with the opportunity for process water reuse,stormwater reuse,and
reuse of treated effluent for landscape irrigation.
Best management practices established by the Texas Water Development Board should also be
considered in the development of the water conservation measures!)
8-1
9. IMPLEMENTATION AND UPDATE OF THE MODEL WATER CONSERVATION PLAN
9.1 City of Corpus Christi Implementation and Update of the Model Water Conservation Plan
Appendix D contains a copy of the City of Corpus Christi City Council resolution adopting this Model
Industrial Water Conservation Plan. The resolution designates responsible officials to implement the
Model Plan.
Appendix E contains a copy of a letter to the chairman of the Region N Water Planning Group to
inform the planning group of this Model Industrial Water Conservation Plan.
This Model Plan will be reviewed and updated every five years.
9.2 Model Industrial Water Conservation Plan Implementation and Updates
For facilities required to submit an industrial water conservation an annual implementation report is
required. The implementation report for industrial use must include the following:
• The list of dates and descriptions of the conservation measures implemented;
• Data about whether or not targets in the plans are being met;
• The actual amount of water saved;and
• If the targets are not being met,an explanation as to why any of the targets are not being
met, including any progress on that particular target.]
[Company/Facility]will submit a copy of their industrial water conservation plan to the City of Corpus
Christi for their review and record.
A copy of the Board of Directors resolution adopting this industrial water conservation plan for
[Company/Facility]is included as an attachment. The resolution designates responsible officials to
implement and enforce the industrial water conservation plan.
A copy of a letter to the chairman of the Region N Water Planning Group to inform the planning group
of this industrial water conservation plan is included.
This water conservation plan will be reviewed and updated every five years.
9-1
Appendix A
List of References
List of References
1. Texas Commission on Environmental Quality:"Water Conservation Plans for Industrial or
Mining Use," Texas Administrative Code Title 30 Part I Subchapter A§288.3,effective
December 6,2012.
2. Texas Water Development Board:Best Management Practices for Industrial Water Users,
Austin, [Online]Available URL:
https://www.twdb.texas.gov/conservation/BMPs/Ind/doc/IndMiniGuide.pdf, February
2013.
3. Texas Commission on Environmental Quality: "Definitions," Texas Administrative Code Title
30 Part I Subchapter A§288.1,effective August 16, 2018.
4. Texas Commission on Environmental Quality TCEQ Form 20839"Industrial Water
Conservation Plan",Austin [Online]Available URL:
http://www.tceq.texas.qov/assets/public/permitting/forms/20839.docx, Revised June 2019
5. Texas Water Development Board and Texas Commission on Environmental Quality in
consultation with Water Conservation Advisory Council:Guidance and Methodology for
Reporting on Water Conservation and Water Use,Austin, [Online]Available URL:
http://www.twdb.texas.gov/conservation/doc/SB181Guidance.pdf, December 2012.
Appendix B
Texas Commission on Environmental Quality Rules on Water Conservation Plans for
Industrial or Mining Water Use
Appendix C
TCEQ Industrial Water Conservation Plan
Appendix D
City Council Resolution Adopting the Model Water Conservation Plan
[Insert City Council resolution adopting the water conservation plan.]
Appendix E
Letter to the Region N Water Planning Group
[Insert letter to the Region N Water Planning Group]
Appendix G
Supplement to Corpus Christi Water Conservation Plan
To Address TAC§288.7
Water Conservation Plans Submitted with a Water Right Application for New
or Additional State Water
This supplement to Corpus Christi's Water Conservation Plan addresses the requirement of§288.7
of the Texas Administrative Code that a water conservation plan submitted with an application for a
new or additional appropriation of water must include data and information which:
1. Supports the applicant's proposed use of water with consideration of the water
conservation goals of the WCP;
2. Evaluates conservation as an alternative to the proposed appropriation;and
3. Evaluates any other feasible alternative to new water development including,
but not limited to,waste prevention, recycling and reuse, water transfer and
marketing, regionalization,and optimum water management practices and
procedures.
Applicant's proposed use of water. The applicant (City of Corpus Christi) proposes to use the water
as requested from the Inner Harbor and La Quinta Channel by desalination and use for municipal
purposes within Aransas, Kleberg, Nueces and San Patricio Counties. This water would be used to
meet water supply needs within those counties, including retail sales to residential, commercial,
manufacturing and institutional customers. Water needs were identified through the state water
planning process,which considers reduced per capita water use that is consistent with the goals of
Corpus Christi's WCP.
Conservation as an alternative to the requested appropriation. As part of the regional planning
process,the planning groups are required to perform a comprehensive analysis of potentially feasibly
water management strategies, including consideration of water conservation. The proposed water
right application supports a recommended project in the 2016 Region N Water Plan and 2017 State
Water Plan. The five-year and ten-year per capita goals outlined in Corpus Christi's WCP are
consistent with the 2016 Region N projections. In addition,this project promotes regionalization and
serves as an alternative to existing fresh water supplies that further promotes conservation of
existing fresh water supplies.
Other feasible alternatives. The proposed amount of appropriation outlined in the application is
consistent with the 2016 Region N Plan as evidenced by a letter attached with the water right
application.
The 2016 Region N Plan identified additional potentially feasible alternatives to the proposed
desalination project to meet needs in Nueces County which include:
• GBRA Lower Basin Off-Channel Reservoir
• Additional Reuse—Corpus Christi
• Manufacturing Water Conservation
• O.N. Stevens WTP Improvements
The 2016 Region N Plan identified additional potentially feasible alternatives to the proposed
desalination project to meet needs in San Patricio County which include:
• GBRA Lower Basin Off-Channel Reservoir
• Manufacturing Water Conservation
• Portland Reuse Pipeline
• SPMWD Industrial WTP Improvements
Desalination is the only recommended strategy that has sufficient quantity to meet the projected
needs in these counties.
' : i . ' - . , ._.
Caller Times '' �+
PART OF THE USA TODAY NETWORK POpp Ol,! f (? 3: 5 C
Certificate of
Publication
NOTICE OF PASSAGE OF
ORDINANCE(S)
CITY OF CORPUS CHRIS TI -SECRETARY NO. 032238, ORDINANCE
TO ADOPT THE CITY OF
PO BOX 9277 CORPUS CHRISTI WATER
CONSERVATION PLAN
REVISED 2020 EDITION.
CORPUS CHRISTI,TX 78401 This ordinance was passed
and approved on second
reading by the Corpus
Christi City Council on Oc-
tober 13,2020.
STATE OF WISCONSIN) /s/Rebecca Huerta
)) City Secretary
COUNTY OF BROWN)
I,being first duly sworn,upon oath depose and say that
am a legal clerk and employee of the publisher,namely,the
Corpus Christi Caller-Times,a daily newspaper published
at Corpus Christi in said City and State,generally circulated
in Aransas,Bee, Brooks,Duval,Jim Hogg,Jim Wells,
Kleberg,Live Oak,Nueces, Refugio,and San Patricio,
Counties,and that the publication of which the annexed is a
true copy,was inserted in the Corpus Christi Caller-Times
on the following dates:
10/19/2020
On this October 19,2020,I certify that the attached
document is a true and exact copy made by the publisher:
/111
Legal Notice CI-rk
OF i
Nota lic,State of isconsin, it unty of Brown
1/0.A
Notary Expires
0 /
Publication Cost:$72.90 \\\`\GK'( FEz�"i,,,�
Ad No:0004422736 ,� J\ . • J-
Customer No: 1490432
PO#: 032238 .1pTARy• ,
#of Affidavits 1 `ii® i —
This is not an invoice cn'' PUB��G ?
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