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033937 RES - 05/19/2026
RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CORPUS CHRISTI, TEXAS ADOPTING THE UPDATED WATER CONSERVATION PLAN TO BE SUBMITTED TO THE TEXAS COMMISSION ON ENVIRONMENTAL QUALITY Whereas, the Texas Commission on Environmental Quality rules in the Texas Administrative Code, Title 30, Chapter 288 require Water Conservation Plans to be reviewed and updated every five years; NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF CORPUS CHRISTI, TEXAS: Section 1. The updated Water Conservation Plan attached hereto as Exhibit A is hereby adopted by the City Council of the City of Corpus Christi, Texas. Section 2. A copy of this Resolution along with the attached updated Water Conservation Plan shall be submitted to the Texas Commission on Environmental Quality and the Texas Water Development Board as required by Texas Administrative Code, Title 30, Chapter 288. Section 3. This Resolution shall be effective upon approval by the City Council of the City of Corpus Christi, Texas. PASSED and APPROVED on the k tk%ay of tV\u•--\ , 2026. ATTEST. Paulette Guajardo, M Re ecca Huerta, City Secretary 033937 SCANNED EXHIBIT A t 11 11 •1- .1+ M 11 CITY OF CORPUS CHRISTI 1. IT �'1 I liekkA f ifittrom 2025 Water Conservation Plan 1 9,0 Other Required Conservation Measures 35 9.1 Public Education & Information 9.1.1 Public information 9.2 Water Rate Structure 9.3 Reservoir System Operation 9.4 Implementation 8 Enforcement 9.5 Requirement for Water Conservation Plans by Wholesale Customers 9.6 Coordination With Regional Water Planning Groups 10.0 Additional Conservation Efforts 10.1 Our Water Resources 10.2 Reuse 10.3 Landscape Water Management 10.4 Prohibition on Wasting Water 10.5 Advanced Metering Infrastructure 10.6 Rainwater Harvesting 11.0 Potential Conservation Programs 35 37 38 40 40 41 42 43 43 43 44 44 45 46 47 11.1 Customer Characterization 47 11.2 Plumbing Assistance Programs for Economically Disadvantaged Customers 47 11.3 Conservation Programs for Industrial, Commercial, & Institutional 48 11.31 Identify ICI Accounts 48 11.3.2 ICI Customer Incentive Programs & Water -Use Surveys 48 11.4 Irrigation & Landscape Ordinance Review 49 11.5 Irrigation Design Criteria 49 12.0 Adoption of Water Conservation Plan, Periodic Review, & Update of Plan 50 Appendix A Listol References A - 1 Appendix B Texas Commission on Environmental Quality Rules on Municipal WatcrConservation Plans B - 1 Appendix C City afCorpus Christi Utility Profile Based onTCEQForma t C - 1 Appendix City of Corpus Christi Model Industrial Water ConservationPtin D - 1 Appendix E Letters to Region N Water Planning Group E -1 Appendix F Resolution for Adoption olWater Callan' valion Plan F - 1 1.0 Welcome Dear Community Members, Water has always defined Corprm Christi, Including ow name, our economy, and our quality of life. But what sets our community apart Is not rapid population growth; It Is our uniquely high and complex water demand driven by a substantial Industrial base Refineries, petrochemical facilities, the Port of Corpus Christi, and other major industries are essential to our focal and regional economy, yet they place significant, continuous demands on our water system. As a result, Corpus Christi Must plan not only for residents, but for one of the most Industrially intensive water use profiles in Texas. I or generations, this community has depended on the same surface water sources, which now face unprecedented stress. Our greatest chailengo is not simply growth. It is sustaining both our community and our economic engine by maintaining a strong, reliable water system in the face of declining reservoir levels, climate extremes, and rising infrastructure costs. The City's prirnary water sources, Choke Canyon Reservoir and Lake Corpus Chita', reached historic lows in 2025, with combined storage tailing below 10%. Extended drought, record heat, and reduced inflows have made water conservation notjustprudent, but essential. While supplemental suppliesfrom Lake Texans and the Colorado River have helped stabilize operations, these sources remain vulnerable to curtailment and cannot along ensure long-term reliability —especially given thescaleand consistency of industrial demand. The overarching goal of this2025 Water Conservation Plan is to meet Corpus Christi Water's current and future needs by ensuring a reliable, resilient, and sustainable water supply for our residents, businesses, and industries. Achieving this requires balancing efficiency with economic vitality and proactively managing demand across an sectors. This plan cans for a renewed focus on efficiency, education, and partnership. It establishes clear, measurable goals, Including reducing total gallons per capita fur day acrossresidential, commercial, Institutional, and Industrial sectors while maintaining system kisses below 10%and keeping the Infrastructure Leakage Index (ILI) at or under 3. These targets reflect our commitment to. managing every drop responsibly while supporting the industrial base that underpins our economy. Conservation is no longer just an environmental Ideal; it Is the most immediate and cost-effective tool we have to extend existing supplies while new sources are developed. Every gallon saved through improved eticiency, modernized infrastructure, and informed water use helps preserve reservoir storage, reduce treatment costs, and maintain reliability for both households and industry. The 2025 Water Conservation Plan builds on prior efforts while addressing todays realities, including persistent drought, evolving climate conditions, and the demands of a water -Intensive economy. It outlines speclf lc actions to reduce demand, minimize losses, and integrate conservation into everyday practices across all sectors. Safeguarding our water future requires shared responsibility. 1 hrough education, partnerships, and forward -looking planning, we can protect this critical resource while continuing to suppor t economic strength and community well-being. With collaboration among city leadership, regional partners, industry, and the public, Corpus Christi will maintain a resilient water system capable of meeting today's needs and securing tomorrow's future. Building on thls strum foundation, Corpus Christi Water is advancing strategic investments tosecure the region's long-term water future. These offer is include developing new supplies through desalination, expanding groundwater access, and enhancing intrastructure to Improve delivery and system connectivity. By diversifying its water portfolio and strengthening resilience, the city is reducing dependence on traditional sources, preparing for drought conditions, and supporting sustainable regional growth. Thank you for your commitment to sustaining Corpus Christi's most essential resource: our water. Chief Operating Officer Corpus Christi Water 4 2.0 Executive Summary Corpus Christi's water supply is anchored in a highly Integrated regional system that draws from multiple surface water sources across South and Central Texas, including the Nueces and Colorado River basins. Key supplies —Choke Canyon Reservoir, Lake Corpus Christi, and Lake Texana—are connected via the Mary Rhodes Pipeline System, enabling flexible water movement to meet municipal, Industrial, and environmental nods across the Coastal Bend. This diversified portfolio supports a population of more than half a million residents while also sustaining one of the region's most significant industrial corridors. Water delivered through this system undergoes treatment at the C.N. Stevens Water Treatment Plant, ensuring a consistent supply of high -quality water for households, businesses, and major Industrial users. 2.1 Our Water Resources Western Supplies Chao Canyon RssM'oe ON .rnr' W.}n 1sesCmm plant 107 lea kotsdC. * t, lsk• Caput CNisu ��werv C•y of Cprpen CPrlUI PssIGMs ev.rna tscs JI, Cub Eastern Supplies Lake Toasts 00000eRHM MmyR6edssPiporn• was cd•aw Tag II J,, nI1 7CFq&tmart In�caVia Iwrvcp>uvco 1'/n'u At:ni(<01$ Quick Stats Bar • 4 Major Sources • 500,000+ People Served • 23 Billion Gallons of Treated Water Per Year = 100 Million Gallons Per Day(MGD) • Reclaimed Water for Parks, Golf Courses, and Industry • Added in 2025 )tit Eastern Well Field-11MOo /lftftft�eeoi Western Well Fiekl- 17 M00 locKsutiaeewiit i b 2.2 The State of Our Water Supply Corpus Christi's regional water system is the foundation of South Texas's economy and quality of life, serving approximately half a million residents and industries across the Coastal Bend. As of 2025, the region faces some of the most challenging supply conditions in history. Combined storage in the Choke Canyon and Lake Corpus Christi reservoirs has falien to critically low levels due to prolonged drought, record heat, and record low inflows throughout the Nueces River Basin, Supplemental sources such as Lake Texana and the Colorado River (via the Mary Rhodes Pipeline) have become increasingly essential to maintaining daily operatbns, highlighting the urgent need for conservation and resource diversification. Over the past decade, declining rainfall and rising temperatures have placed increasing stress on the region's water supplies. In 2024 and 2025, average annual rainfall across the Nueces River Basin fell well below normal, while summer temperatures reached record highs; accelerating evaporation and reducing inflows to Choke Canyon and Lake Corpus Christ I. The correlation between these prolonged dry, hot conditions and the sharp decline in reservoir storage underscores how climate extremes directly impact local water availability. these patterns highlight the need for continued conservation and adaptive management to preserve limited supplies during extended droughts Drought Stages & Triggers. Drought Stagg combined Re5001o4 Iuvul Target Water Demand RaductIon Goal Water Shortage Watch <50% 5% Stage 1- Mild <40% 5% Stago 2 - Moderate Stage 3-Critical <30% 10% <20% 15% Water Emergency Lovell tcvcl2 Other Triggers (See Drought Contingency Mae) 25% 50% Water Shortage Conditions s1AOE si AOt Drought Status Meter Combined storage levels of Choke Canyon Reservoir and LakeCorpus Christi: 10.0% As of 01.15.2025 6 c% a On Average, Corpus Christi Residents Use 60 Gallons Per Person Per Day Percent of Raw Water Used by Source & Location (%) C!/of a'Patto ct nca CL:aa lNw p4 on -run VIYy %r..n Oq.a 0A% OAK 11=1 lit En prz Ake Iwn:'e Mel,/ Mnsr 4ludc: P1Veb Matta? 0Aac11r4) . I Ala CorpusCMal Percentage of Water Consumption by Category i' 'J 2 ti;_ I r2• IIF V,:=dq (n2anrt 1):i:'.;tlr!l !(;) 2.3 How We Use Our Water Total Raw Water Gallons Used by Source & Location (MGaI) t4-0 HW Cr 0 523 Otya. Ei9}l%:l Cet:CU4 Weer F a.nMWlP Gd(CIt 392 425 2 13 65 05 13 6v-r• tan!: t /:cc Rec. MILK* ■ Mnyflfoduflipalby • Macccs Rwc• (1141 . lake Carpus Cl!rie4 Residential (Single -Family & Multi -Family) Industrial 49.6% Commercial Other Authorized 2.4 Existing Conservation & Efficiency Programs The City of Corpus Christi promotes responsible water management to protect r. ources and support growth. Through education and partnerships with schools and businesses, the City encourages efficient water use and long-term stewardship, bulkling a sustainable and resilient water hiture. Statistics for public information outreach can be found In Section 9. ra • • IMME School Programs: Learning to Be Water Wise (6th Grade): Introduces students to the water cycle, local sources, and conservation through hands-on activities. Water Source Book (Grades 6-8): A middle school curriculum connecting science and geography lessons on sustainable water use and pollution prevention. Coastal Bend Teacher Resources: Provides teachers with lesson plans, classroom kits, and field trip Ideas focused on local water management. City -Led Water Efficiency Efforts: Reclaimed Water Program: Corpus Christi Water's reclaimed water program is evolving from a conservation -focused initiative into a key component of the city long-term water supply strategy. Historically used for non -potable purposes like Irrigation and construction, often at low or no cost during drought, the program helped reduce demand on limited potable supplies. It Is now shifting toward large-scale Industrial reuse, anchored by agreements with Valero and Flint Hills. The 30-year Valero agreement will supply up to 8 MGD through privately funded infrastructure that will ultimatelytransfer to the City, while the Flint Hills agreement will provide up to 2 MGD with customer -funded on -site treatment. Together, these projects create about 10 MGD of consistent demand, significantly advancing theCity reuse goals. Reclaimed Water Distribution Stations: Established In 2025, Corpus Christi Water offers Type I and Type II treated waste- water in bulk for construction and other non -drinking uses. This recycled water helps conserve our drinking water supply and is currently available at no subscription cost The reclaimed water will be processed and collected at the City's Oso. Wastewater Treatment Plant. Infrastructure Efficiency: Replacement of outdated plumbing fixtures, adoption of rainwater harvesting systems available for City departments, and Xeriscape landscaping for city facilities. Leak Detection: A full-time team conducts 24/7leak detection and repairs to minimize water loss. Community Education: The Xeriscape Learning Center and Design Garden demonstrates sustainable, drought -tolerant landscaping. Visitors learn how proper plant selection, soil management, and efficient Irrigation reduce water use without sacrificing beauty. Self -guided tours, work- shops, and events engage homeowners, professlonals, and students in hands -an conservation practices. Public Information Campaigns: Citywide outreach through social media, TV, radio, print, and billboards promotes everyday water -saving actlons— Ilkefixing leaks and adjusting sprinklers. The Water Hotline (361-826-1600) connects residents with free conservation klts, educational materials; and expert guidance to support responsible water use. Incentives and Pricing: Tiered Rate Structure: Corpus Christi Water uses a tiered rate structure to promote responsiblewater use and ensure long -tern sustainabllity of thecommunity's water supply. Underthis system, the cost of water increases In stages based on how much a customer uses, charging higher rates for higher levels of consumption. This approach encourages conservation, supports infrastructure investment, and helps manage demandduring periods of limited water availability. a 2.5 Key Strategies & Quantifiable Target Goals Corpus Christi's 2025 Water Conservation Plan translates long-term sustalnabiiity goals Into clear, measurable performance targets. These metrics track annual progress toward reducing water use, improving efficiency, and enhancing system reliability across the Coastal Bend. Each goal aligns with the City's core objectives, promoting conservation, strengthening Infrastructure, engaging the community, and ensuring preparedness during drought. Together, these metrics provide a transparent framework for account- ability and continuous Improvement, allowing the City to evaluate performance, prioritize investments, and demonstrate measurable water savings year over year. The plan's metrics span eleven focus areas, each designed to strengthen reliability and efficiency throughout the water cycle: reducing daily water use, Improving system performance, expanding reuse, and promoting responsible water management at every level. Annual goals include lowering per capita consumption by 1% each year, reducing system water Toss by 1% annually, expanding reclaimed water use by 5% annually, and achieving 90%compliance with drought restrictions. Broader program objectives Include upgrading metering technology, supporting Industrial and wholesale customer conservation, enhancing leak detection, and ensuring that all now development meets modern efficiency standards. Water Use Reduction Systeril Efficiency/ Water Loss Control Public Education &.Outreach Meta:Gaawis iKr capita pc day (GPC1)nftot+hnuudcipotwaltz use reduction Goa11: RatuceGPCDby 1% em u:1y. Thisequsa toa drop of 12GPCO by 2030. Mettle: Percentagereductron initmmerpadod WY Ito September30)damand compared torte bane*ceyear. McUto:'IOTA water lossredtatloo. Metric: Win ntwaterinnpected end tehahlitated per year. Metric: MVMerotconservation oulmathEvents hefd Goal 1: Rcduco warmer penal peak demand by 10%. Ibis equals to teductkaof to notion gallons of vests: Outlay doting Da tluoe-monthperiod. Goal 1: Reduce total water loss by l%Ennua8y. This equals a reduction & 51,124 gatlans per day. Goal 2 Implement 3 Water IS TaskFyce to assess/idwdXy oplartahy areas for apparent and ratwatertoss, Goal 1:Irrtp(entent proactive leak detectMn and managementptogram. Goat 1: Conduct al least %bcwtvtuadty outroach events pa yeas. Goal Z: Ispoct25%ot the t resbibulkat system' arvetally vAh teak dotcction oqubrnanL This equals Lo 428 niesof plpoGaper yeat. Mark: Numb« &atudeote reached through Wood education Ifmgwnt Goal 1: Deimos conservation ctxrku4on toattoast MOOD studada of study. 9 Landt:eape Irrigation Management (Rtc:ktont;tInilyjlillnA.s essrueula) Metering, Monitoring,& Data Metric: Number on violations frauon(w un*nus rot non -outnpfia tcovent wahanng ochekies dutklg drought gaga Insure/dance with the Myna:wevad Drought Contingency Plan Motric: Percent td niatnrxr of ooa whh a dvancedmetering Infrastructure (AMII. Goal1: Ruducc ktlgaaon vOlo[kmoby le'b arnn?r tlnruglt enforcement and erk.mimn. Goal 1: to .tnil Avo for twit of vesairrtsa mrtneyy rmtg tee%%echie red. Metric: Avurago Linn tx:hvcco meta[ roads and blimp (l1lint)BLUYacY) Goal 1: Matn•:.1n Mug aecufacyabove 9R% Reuse & Alternative Water Supply thought Contingency Integration New Development & 8u11ding Standards Metrio: Numbcr of Ica abrto sent tocostonlas geounh AMI. Metric: Galan el Ueelcil efiduenl reused amnhafv. Metric: Percent increase rem :e. connections Mekio: Increase roma hum WI coulees, pat ks, and othe rat° the red.Nr..d system (rnr Itdgntknl Metrk:Cornplianeorate with dranild. cMUktonh(nienaued %Iv Inopatlortgritatie/s) Mottle: Reduction in demand Miring drrughtstage activation L46eresewharersiel. Slott c: the locenent and inmkmentotkvl of year-round restnrtkxa Itvp catly n DC PA, sunhat tyke net weekwterirg. Metric: Nutrberrocmcolagc of new tkvoctpme Mmenling waw-clr krd hula codes. Goal 1: Pnwlde at lest 1,000 le:tk natifcotknc par year /inceAMf ie in place Goal 1: Lapurul mtrae water delivetiu (N bfl re/iannfy. Goal 1: Add 1-o!anv retae cU tottnrs7Xn yUw. Goal 1: And 1 park or golf corvne to reclaimed water annually. Goal 1: ABeee 9O% corv6ance w+lh restrictions on eachdroudtt 5Wuc Goal 1: Padua* va:er demand NY 1-2C%dump drought trigge's Goat 1: hryper, eat twice pa, wcck w minores!,ktloneyear- ro t.d Inc other from DCP; men eval,ate OCP magest. Goal 1: t n wee 100% c.omprunre wil h al rmbIng code requirements ter inn -firer brown in new construction and major renaraticns. Wliolasele Customer Conservation Metric Maribor of wh ierale customers auterittng annual conservation refArts. Metric: Whde41 ecustomers adopting rev/waterccnsensUon programs Industrial, Commercial & Institutional (ICI) Prograrna Ordinance Development, Review, &Enforcement Menlo: Iq sector bervhnatling, ktentifcation of rah -water users, and the number of water etticercy assesanw as derietod Metric: Eatlrnatedwetor swings identified though comp!etedICI asaesartumta. Metric: Verified water savings acNr-vedbycustomers ass result of imis'ementing recarmanded efffCfenwymenswEs Mobto:GvVonaof water savings fromInduatrial best iinUkeS Metde: Eno:wage organization le esiatt3th water u:ieintens ty as defined byaoons:stent d& aminetorreletent to ink sector(a g.,water use per square footage, per tcnol product pat unit manufactured, per revenue ddar) Both absolute water use and intensity abol id be Is ac ku d. Metric: Strengthen eminences end ensure alignment with existing aM have programs Goal 1: Addeve10e% annual reMrdng comp&ancefrom a wholesale customers. Goat I. Assistattaastl wholesale customer panzer in adopting new cal ssrvatim PraQrsrna Goal 1: Identify big/meter-use I(:1 nttomersand otter them amual, no -cost, robattaryvrater efficiency lency assessments that Identdyeffi ienryopportwties, potential cost savings, and payback periods Goal 1: Track estimated water atrings identified through the completed leiassessments Goal is rreckverifed customer water savingsroadtio) front iter%nesitelionof ossesytttnt TCpet L ICCaIIIUIttiadplie. Goal 1: Secure M least Me annual water wtstre t from ICI of fof te. Ms equals to 432,87G gallonssofwaterpeday Goal 1: Pertrcpabng aganitlt Anal are encouraged to adopt a water tee intensity target defined bya cartoon percentage oven sat number of yeas Goal 1: Review oxisUtpwater consavatioo-rdolod ardnoncsS Of applicabk) and cubs/rid dovdopbylupdotklg them Welkin with water* rangergoals 2.6 Additional Water Supply Projects & Strategies Corpus Christi Water isadvanchngarange offuture projects andstrategle tohelpsecure areliable, resilient, and sustainable water supply for the community. These efforts include developing new water sources through seawater desalination, ground- water development, brackish water treatment, and wastewater reuse, as well as investing in the Infrastructure needed to treat, transport, and deliver water where it is needed most. Together. these hatiatives reflect a long-term strategy to diversify the City's water portfolio and reduce dependence on trad6- tional surface water supplies. In addition to Increasing supply reliability, lhc,^,e projects are intended to strengthen system fiexi- blfity, improve drought preparedness, and create greater resilla..nce in the City s overall water system. By pursuing a mix of local, regional, ancl Innovative water supply solutions, Corpus Christi Water is positioning itself to better meet future water demands, support continued Industrial and population growth, and enhance long-term water security for the Coastal Bend region. Inner Harbor Seawater Desalination The proposed Inner Harbor Seawater Desalination Plant ha major supply diversification project designed to provide Corpus Christi with a drought -resistant water source by treating seawater for potable use. The facility would strengthen system resWence by providing a water source Independent of theCity's existing surraw water treatment operations and by taking advantage of Its strategic location near the City's.water distribution system. Regulatory permits have been se- cured, and the City continues advancing design, contract negotiations, optimization testing, and funding coordination. Harbor Island Desalination Plant Corpus Christi has entered into an agreement with the Nueces River Authority to reserve future participation in the pro- posed Harbor Island Seawater Desalination Plant, a regional water supply project being advanced under the New Water for South Texas Plan. The project represents a collaborative regional approach to developing a new drought -resistant water source to support participating communities. Engineering, permitting, and development activities continue as project partners advance planning and evaluate next steps for implementation. Barney Davis Seawater Desalination Project Corpus Christi is exploring the feasibility of developing a seawater desalination facility adjacent to the Barney Davis Power Plant In partnership with CPS Energy. The protect is being considered as another potential opportunity to expand the City's drought -resistant water supply portfolio through strategic use of existing Industrial infrastructure and coastal access. Initial coordination and site discussions are underway as both parties evaluate project development options. Corpus Christi Polymers Seawater Desalination Plant Corpus Christi is evaluating a potential agreement with Aquatech to complete and operate an existing desalination facility that could provide an additional water supply source for the City. This protect would Involve utilizing existing infra- structure while completing the necessary upgrades, permitting, and treatment requirements needed for potable water use. Ongoing discussions are focused on feasibility, project timing, contractual terms, and operational considerations. 12 Additional Seawater Desalination Project Corpus Christi is reviewing a proposal for a potential additional seawater desalination facility on the south side of the city as part of lts broader strategy to diversifywater.supply sources. The project is in the early evaluation stage, wfth City staff reviewing the proposed business concept and awaiting additional information to assess feasibility and con- tractual considerations. If determined viable, the project could provide another long-term drought -resistant water supply option for the community. Nueces Groundwater Program The Nueees Groundwater Program Includes the development and operation of groundwater well fields alongthe Nueces River to strengthen Corpus Christi% water supply reliability and reduce dependence on surface water sourc- es during drought conditions. The project represents a major long-term investment in groundwater Infrastructure, including well field development, monitoring systems, and supporting facilities. Well operations, infrastructure im- provements, and expansion activities continue as the City advances this important groundwater resource program. Evangeline Groundwater Project The Evangeline Groundwater Project is a regional groundwater supply Initiative developedthrough agreements with project partners to provide Corpus Christ) with an additional water source. The project includes groundwater rights ac- quisition, well development, pipeline infrastructure, and integration with the City's broader water supply system. Engi- neering, construction, and permitting activities continue as regulatory review and project devebpment move forward. Brackish Groundwater Reverse Osmosis Treatment Project Corpus Christi Is advancing a brackish groundwater reverse osmosis treatment project to expand the use of ground- water resources through advanced treatment technology. The project Includes treatment facilities, conveyance pipelines, pump stations, storage infrastructure, and supporting electrical and regulatory coordination needed to integrate the treated supply Into the City% water system. Design, procurement, permitting, and phased construction activities are actively underway. Seven Seas Water Group Corpus Christi is In discussions with Seven Seas Water Group regarding a potential brackish groundwater reverse osmosis project in Nueces County as another possible water supply diversification opportunity. Early project work Includes land evaluation, test well planning, and hydrogeologic studies to determine whether the site can support long-torm groundwater development. The project remains in the feasibility assessment stage as City staff continue evaluating Its potential. Reclaimed Water Infrastructure Project Corpus Christi is expanding its reclaimed water infrastructure to increase the beneficial use of treated wastewater as an additional non -potable water supply'soure.e. The project Includes conveyance infrastructure, pump station improvements, and coordination with industrial and other future end users to reduce reliance on potable water far appropriate reuse applications. Design, construction planning, land coordination, and end -user agreements continue as the City advances its long-term wastewater reuse strategy. Collectively, these efforts reflect Corpus Christi's commitment to a comprehensive and regionally coordinated ap- proach, one that emphasizes innovation, diversification, and responsible resource management to ensure a sustain- able water future for residents, businesses, and industries across the Coastal Bend. 13 2.7 Limitations Of GPCD as a Benchmark for Corpus Christi Using Gallons Per Capita Per Day (GPCD) as a measure of water efficiency can be misleading for Corpus Christi due to the City'; distinctive water demand characteristics. whlleGPCD is a common benchmark for comparing municipal water use, It assumes that most water consumption is residential or commercial and directly tied to population. In Corpus Christi, however, a significant portion of total water demand comes from industrial customers, particularlyIn the petrochemical, refining, and manufacturing sectors that support the regional economy. Because GPCD divides total water use by population, the inclusion of significant Industrial water use skews the metric, making Corpus Christi appear to haw higher per -person water use than similar -sized cities with smaller industrial bases. As a result, the metric does not accurately reflect residential efficiency or conservation progress. Moreover, Corpus ChrCstrs role as a regional water supplier further complicates direct comparisons. The City provides water not only for its residents but also to surrounding communkies and industries through- out the Coastal Bend area. These wholesale and Industrial demands fall outside traditional residential pattems, yet they are included In tho Citys total consumption figures. For these reasons, GPCD alone does not fully capture the effectiveness of Corpus Christi's conservation programs or operational efficiency. A more representative assessment would Include sector -specific metrics, such as separate tracking of residential, commercial, Institutional, and Industrial GPCD, along with efficiency ratios or total system demand relative to economic output. These measures would provide a clearer picture of the City s dual commitment to supporting economic growth while promoting responsible wator use. Next Steps: Developing Improved Water Benchmarking Tools Given Corpus Christi's diverse customer base and industrial demand, refining water -use benchmarking is essential to better evaluate efficiency across sectors. The City plans to develop a more representative framework that distinguishes between Residential, Commercial, Institutional, and Industrial water use. This approach will provide clearer insights intoconsumption patterns, conservation progress, and resource management. Establish Sector -Specific GPCD Metrics Instead of a single, citywide Gallons Per Capita Per Day (GPCD) figure, Corpus Christi plans to track and report separate metrics for each majorcategory of use: Residential GPCD: Measures per capita water use by households, reflecting direct community conservation performance. This metric should serve as the primary benchmark for evaluating public outreach, education, and rebate program of fectiveness. Commercial GPCD: Tracks water use for businesses such as offices, retail, restaurants, schools, government buildings, hospitals, and public facilities. Benchmarking this category helps Identify opportunities for efficiency improvements in non-residential but population -related sectors. City Industrial GPCD (or industrial Use): Calculated and reported separately from population -based metrics. This category captures large-scalo, process -related water use associated with the region's ref Ineries, petrochemical plants, and rnanufacturing facilities. Because industrial demand is not population -driven, separating it avoids distorting the overall GPCD and provides a fairer assessment of residential and community efficiency. Wholesale: Wholesale will be recorded separately. By tracking these four metrics Independently, Corpus Christi can more accurately compare performance across customer classes and align conservation of forts with specific water -use patterns. In addition, Corpus Christi wilt evaluate the following Initiatives: Develop Industrial Water Intensity Benchmarks Beyond total use, the City plans to collaborate with industrial customers to create water -intensity benchmarks, such as gallons of water per unit of output (e.g., por barrel of product, per ton processed, or per megawatt -hour generated). These indicators provide production -based efficiency measures, allowing Industries to assess performance relative to peers and identify opportunities for improvement. Conduct Voluntary Water Audits & Data Collaboration Partner with major Industrial and commercial customers to perform voluntary water audits. These audits will help identify process inof flcioncies, potential reuse systems, and technology upgrades. Aggregated, anonymized results can Inform regional benchmarks and guide targeted efficiency programs. Create a Corpus Christi Water Efficiency Dashboard Develop a Water Efficiency Dashboard that consolidates data from all sectors, Residential, Commercial, and Industrial, Into a single reporting platform. The dashboard would display year -over -year trends, GPCD by sector, and progress toward conservation goals, increasing transparency and accountability. Integrate Sector Metrics into Long -Term Planning Incorporate the new sector -based GPCD metrics and Industrial benchmarks into the City's Water Conservation and Drought Contingency Plans. These distinctions will Improve forecasting accuracy, support reclaimed water planning, and ensure conservation goats are aligned with sector -specific realities. 15 3.0 Introduction & Objective Water supply has always been a key issue in the development of Texas In recent years, Increasing economic development across Texas has led to growing demands for water supplies. Severe drought conditions in the recent past highlight the importance of the efficient use of our existing supplies to make them last as long as possible. Extending current supplies will delay the need for new supplies, minimize the environmental impacts associated with developing new supplies, and delay the cost of additional water supply development. Recognizing the need for efficient use of existing water supplies, the Texas Commission en Environmental Quality (TCEQ) has developed guidelines and requirements governing the development of water conservation plans. The TCEQ guidelines and requirements are included In Appendix B. The City of Corpus Christi (the City) has developed this Water Conservation Plan (Plan) In accordance with TCEO guidelines and requirements The 2025 Water Conservation Plan replacesthe previous Plan, adopted October 13, 2020. This Plan reflects the City's commitment to water conservation andefficiency strategiiesthat safeguard regional water supplies, promote responsible use across all customer sectors, and ensure king -term water reliability for the Coastal Bend. It builds upon decades of local and regional planning to reduce per capita demand, minimize system losses, expand reuse and alternative supplies, and foster a culture of stewardship through education, innovation, and equitable access to conservation resources �1A ate- _ . 1- _ 11 .. ita The objectives of this Plan are as follows: 0 To reduce water consumption from the levels that would prevail without conservation efforts; To reduce the loss and waste of water; To improve efficiency in the use of water; To encourage efficient outdoor water use; To report the level of recycling and reuse in the water supply; and To extend the life of current water supplies by reducing the rate of growth In demand. The Plan charts a path to achieve lasting water conservation savings that preserve existing supplies and protect customers frorn unnecessary costs. Table 1-1: Abbreviations Ab^.rcv'3tion AMI rgbNomenclature Advanced Metering lnfresurcture AMR A tnrnaterrMeterReedng AWWA AmerxsnWater Works Assori liar 8MP Best har..agemenlRaolicea EPA Emvonrranta! ProtoctiorAaotcy HOA I toteeethene Action ICC International Code Cauel ICI 6mdrstriet, Commercial, ktslitullotd 1L1 mfio ilium et eakagetrdex LNRA I a vaca•NAvkradlxverAutherily MGD MIOutGapnts pet Uay TAC 1estiltAdmWstrativeCode TCEQ Tars Corn rtkaion on Environmental Quatly TWDB IersWatne Iee.gxr.entBasd UARL UnewldeSe Annual Real Lor as WCP or Plan water Conseiva6vI Plat 16 4.0 Regulatory Basis for Water Conservation Plan TCEQ RULES GOVERNING CONSERVATION PLANS TCEQ rules governing the development of water conservation plans for public water suppliers are contained In Title 30, Part 1, Chapter 288, Subchapter A, Rule 288.2 of the Texas Administrative Code (TAC), which is included in Appendix B. For these rules, 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." 5.0 Description of Water Sources The City serves as the regional water provider for the Coastal Bend, delivering safe and reliable drinking water to moro than half a million residents, businesses, Industries, and wholesale customers across a multi -county area. Operating In one of Texas's most drought-prono regions, the Citys water supply system Is strategically designed to ensure long-term reliability through a diversified portfolio of surface water sources, legally secured water rights, strategic storage, and extensive conveyance Infrastructure. A critical component of this reliability is the City's portfolio of water rights, which varies in seniority, firm yield, and susceptibility to regulatory curtailment during drought conditions. Senior water rights, particularly thoseassociated with the Nueces River system, provide a higher level of supply security, while more junior or interruptible rights, including certain transferred or imported supplies, may face curtail- ment under priority administration by the Texas Commission on Environmental Quality (TCEQ). As a result, the City actively manages its system to balance these risks, leveraging storage, Interconnections, and operational flexibility to maintain supply during periods of reduced availability. Surface water remains the cornerstone of Corpus Christi supply portfolio. Major sources include Lake Corpus Christi and Choke Canyon Reservoir on the Nueces River system, Lake Texana via the Lavaca-Navidad River Authority, and Colorado River water conveyed through the Mary Rhodes Pipeline. Together, these sources form an Integrated regional network managed by Corpus Christi Water in coordination with the Nueces River Authority, Lavaca- Navidad River Authority, and TCEQ to optimize reliability, regulatory compliance, and drought resilience. The Mary Rhodes Pipeline is a critical piece of this system, serving as a large-dlamoter, long-distanceconveyance facility that transports wator from multiple basins into the City's supply network. Originally constructed to deliver water from Lake Texana, the pipeline has since been expanded and Integrated with additional interconnections to convey Colorado River supplies and other contracted sources. The system includes multiple pump stations, delivery points, and Interties that enable operational flexibility, allowing the City to shift between sources based on availability, water rights conditions, and system demand. This infrastructure not only diversifies the City's supply geographically but also mitigates risks associated with localized drought, basin -specific regulatory restrictions, and curtailment of junior water rights. However, because portions of the conveyed supplies are subject to differing legal and contractual frameworks, including Interruptible agreements, the pipeline's operation is closely managed to account for potential curtailment scenarios and ensure continuity of service. In addition to managing raw water supply and conveyance, the O.N. Stevens Water Treatment Plant In Calailen treats all potable water for the City and its wholesale customers, ensuring compliance with state and federal drinking water standards. Corpus Christi Water further supports regional sustainability through reclamation, treatment, and discharge operations across six regional wastewater treatment plants. The following sections detail each of the four major surface water sources, highlighting their geographic location, capacity, ownership, water rights characteristics, including seniority and curtailment risk, and their operational significance to the City's long-term water security and resilience strategy. 17 5.1 Lake Corpus Christi Lake Corpus Christi, completed in 1958 with the construction of the Wesley Seale Dam on the Nueces River, is a major water supply reservoir for the City of Corpus Christi. Situated about 33 miles northwest of the City. It has a full-capacty elevation of 94 feet above mean sea level and a storage capacity of 256,339 acre-feet, or roughly 83.5 billion gallons. Covering nearly 19,748 acres (about 31 square miles), the lake serves both municipal and recreational purposes. It forms part of the Nueces River Basin, which is primarily fed by the Nueces, Fdo, and Atascosa Rivers, with Inflows from the Frio River first collected by Choke Canyon Reservoir upstream before joining Lako Corpus Christi. The Nueces and Frio River basins together span roughly 16,764 square miles, capturing rainfall from varied climatic regions. However, because streamf low is highly dependent on seasonal rainfall, the lake'swater levels can fluctuate significantly during droughts, underscoring the importance of Corpus Christi's diversifiedwater supply system. Beyond supplying municipal water, Lake Corpus Christi also provides ecological and recreational benefits, supporting wildlife habitats regional tourism, and the health of the Nueces Estuary —One of Texas's most productive coastal ecosystems. Figure 5-1: Corpus Christi Service Water Sources /1uo 111 Mr 14M,u Coastal Bend Region Raw Water Supply 5.2 Choke Canyon Reservoir Choke Canyon Reservoir, located about 70 miles northwest of Corpus Christi in Live Oak and McMullen Counties, is the largest storage reservoir in The City% water supply system and a cornerstone of Its long-term water security. Completed In 1982 by the U.S. Bureau of Reclamation as part of the Nueces River Project, the reservoir provides flood control and a dependable raw water source for municipal, industrial, and agricultural use across the Coastal Bend. At full capacity, it holds approximately 662,821 acre-feet (around 215 billion gallons) of water at an elevation of 220.5 feet above mean sea level, spanning nearly 26,000 acres. Together with Lake Corpus Christi, it forms the backbone of the Nueces River Basin storage system, capturing inflows primarily from the Frio River Watershed. 18 Beyond its storage and flood -control functions, Choke Canyon Reservoir plays a vital role In balancing The Citys overall water operations and supporting regional ecosystems. Its upstream location provides protection from flooding while enabling regulated downstream releases that sustain municipal supply and environmental flows to the Nueces Oelta and estuary. Jointly managed by The City of Corpus Christi, the Nueces River Authority, and Texas Parks and Wildlife Department, the reservoir and adjacent Choke Canyon State Park also support recreation, tourism, and wildlife conservation, reinforcing Its value as both an operational and ecological asset to South Texas. 5.3 Lake Texana Lake Texana, located about 90 miles northeast of Corpus Christi In Jackson County, is a key Inter -basin water source that strengthens the Citys long -temp water security and diversification strategy. Completed in 1980 with the construction of the Palmetto Bend Dam on the Navidad River, the reservoir Is owned and operated by the Lavaca-Navidad River Authority (LNRA). With a storage.capadty of 161,085 acre-feet (about 52.5 billion gallons) and a surface area of 9,727 acres, it provides raw water to Corpus Christi through the Mary Rhodes Pipeline System —a alit -mile, 64-inch transmission line completed In 1998 that delivers water directly to the O.N. Stevens Water Treatment Plant TheCity's contract with LNRA, established In the 1990s after a historic drought, secured 31,440 acre-feet per year of supply. Lake Texana and the Mary Rhodes Pipeline together provide 40 to 70 percent of Corpus Christi's raw water under normal conditions, offering vital hydrologic diversity and reliability during droughts when local reservoir inflows are low. Beyond municipal use, the lake supports regional agriculture, industry, recreation, and wildlife habitats, contnbutingto both ecological balance and economic vitality in the area. The success of this system also paved the way for future Inter -basin transfer initiatives, including the Mary Rhodes Pipeline Phase II, which further enhances Corpus Christi's capacity to.draw water from multiple watersheds across South Texas. 5.4 Colorado River The Colorado River is the newest addition to Corpus Christi's diversified water supply system ande major milestone in securing long-term, reliable surface water from multiple basins. Located In Matagorda County, this source connects to the Citys network through the Mary Rhodes Pipeline Phase II, which extends 42 miles from the Colorado River near Bay City to lake Texana and the existing Phase I pipeline. The City%1992 agreement with the Garwood Irrigation Company granted rights to purchase up to 35,00o acre-feet per year of run -of -the -river water, expanding Corpus Christi's portfolio beyond the Nueces and Lavaca-Navidad basins. Phase II of the pipeline was completed In 2016 after years of coordination among regional and state agencies. The project now provides a seamless 140-mile inter -basin transfer system linking the Colorado River to the O.N. Stevens Water Treatment Plant. Water from the Colorado River serves as a strategic reserve. Its inclusion strengthens the City's hydrologic diversity and operational flexibility, enabling balanced withdrawals across multiple watersheds while supporting environmental and agricultural needs upstream. The system's reach across diverse climatic zones —from the Hill Country to the Gulf Coastal Plain —offers vital protection against localized droughts. Overall, the Colorado River supply and Mary Rhodes Pipeline Phase II highlight Corpus Christi's long-term commitment to regional cooperation and sustainable water management for future growth and resilience. 6.0 Description of Service Area & Utility Profile brat 41YM4 lfE4 It.r. ?Pen \I rare Lnman W r::,1 —Ml Orb nC•,r. O IOW r.s...•Y.. lrlun On lasep, 04 (4:1 InN I:wpr Ya 111\I Figure 6-1: Corpus Cristi Water Service Areas Inr.,y�dr. r,ti Is(rvlra arou and whoIeaalcrxrvu:, urea Source: Plummer IL:^nriate=_ 6.1 Description of Water Sources Corpus Christi Water and Its regional partners are active participants In the Region N Regional Water Planning Group, which covers the Coastal Bend region of Texas, including all or parts of Aransas, Bee, Brooks, Duval, Jim Wells, Kenedy, Kleberg, Live Oak, Nueces, Refugio, and San Patrick) counties. Within city limits, the City provides retail water and wastewater service to about 317,000 residents while also supplying wholesale treated and/or raw water to moro than 20 regional partners, including San Patrick) Municipal Water District (SPMWD), South Texas Water Authority (STWA), Nueces County WCID No. 4 (Port Aransas), and the Cities of Alice, Mathis, and Beeville. Altogether, the City provides water, directly or Indirectly, to nearly half a million people across the Coastal Bend, reflecting both retail customers and wholesale deliveries to surrounding communities and industries. Figure 6-1 illustrates the combined retail and wholesale service area. a 6.2 Water Treatment Capacity The Cityt regional water supplysystem delivers safe, reliable drinking water to more than 500,000 people across a seven -county, 140-square-mile service area through an extensive network of more than 1,800 miles of pipelines, pump stations, and storage tanks. At the center of this system Is the O.N. Stevens Water Treatment Plant in Calallen, the City's sole treatment facility, which receives raw water from Lake Corpus Christi, Choke Canyon Reservoir, Lake Texana, and the Colorado River via the Mary Rhodes Pipeline System. These sources are blended at the plant, treated to drinking water quality standards established by the Texas Commission on Environmental Quality (TCEQ), and distributed throughout the city and to wholesale customers via a network of pipelines and high -capacity pumps. The plant Is currently rated for a maximum treatment capacity of 161.5 million gallons per day (MGD). Ongoing projects will increase the maximum rated capacity to 200 MGD, exceeding the City's current peak summer demand of approximately 130 MGD. The O.N. Stevens facility treats roughly 23 billion gallons of water each year using advanced processes such as coagulation, sedimentation, filtration, and disinfection to meet stringent state and federal standards. Supported by SCADA monitoring, system redundancy, and ongoing infrastructure upgrades, the treatment and distribution network maintains high reliability during maintenance, droughts, or emergencies. In addition to serving Corpus Christi residents, the City provides wholesale water to surrounding communities and industries, extending the benefits of its diverse, drought -resistant water supply system throughout the region. Appendix C contains Corpus Christi's most recent Water Utility Profiles based on the formats recommended by TCEQ for both retail suppliers and wholesale suppliers. Rgure33- Corpu9CturtlConsumptIon by Water Um Category {\ iarart 1111 2020 PISCOW OOMacw t WC PalsoSal 2023 •2024 Figure 63: l+rcentagaat Rot a11 Water Contumptlon by Category Ct d on CORO.2024,Av0raae Veto lyCcn.ump0o0(0 MCI) nguea-2ahurrallreaJ.eaodnot wale, the tot awpe,tltil6:jhtfiier hu1hdIm000MulnD6WcM e.vSSeera4+aulhalld lot OW me a. Walingback b.Mrg%rntaushbx {totaoalankdea t.g.0m0•00 nwauu, enorMulemmr.nem erriwe ermunkgnrgog cowsnaMparka. 21 7.0 Specification of Water Conservation Goals 7.1 TCEQ Water Conservation Goals TCEQ rules require the adoption of specific water conservation goals for a Water Conservation Plan. The goals for this Plan Include the following: Maintain a 5-year moving average for total and residential per capita water use below the specified amounts In Table 7-1 Maintain a program of universal metering and meter replacement and repair as discussed in Section 8 Maintain the Infrastructure Leakage Index (ILI), below the specified amount in Section 8 • Maintain the level of water loss in the system below the specified amount in Table 8-3 Raise public awareness of water conservation and encourage responsible public behavior through a public education and information program as discussed in Section 9 Increase efficient water usage and decrease waste in lawn Irrigation by enforcement of reasonable irrigation and landscape water management regulations described in Table 7-2 7.2 GPCD Goals The 2022 State Water Plan requires each regional water planning group to establish per capita water use (GPCD) goals for municipal water users. About half of the planning groups, Including Region N (Coastal Bend), selected a goal of 144 gallons per capita per day (GPCD). While the City has not yet met this target, it continues to make steady progress toward achieving the GPCD goals shown In Table 7-1 and Figure 7-1. The overall GPCD remains elevated primarily due to Industrial water demand, which increases total per -capita use. Duo to recent drought stages and outside watering restrictions, consumption for other users has declined. As part of the Citys Water Conservation Plan, goals are established to gradually reduce water consumption over time, based on a reduction rate of approximately 0.75 gallons per capita por day per year for the five- and ten-year planning periods. Figure 7-1: Historic & Projected GPCD (Totted, Residential, 5-Year Average, & Target Goals) 260 220 1 200 0 150 8$ 100 1 8 5o 213' 201 ______ h. 191 ........_.._._I 64 60 57 0 2016 l'ea Aar tam POS tote $PI £NJ 1L3 Alta 2Cf6 Po3a 2031 207e COPS TOM Pohl 2032 EOM PoSt Pan mteIGPC06YearAversoa _ _ _ TeWGPtP ojedlon ReddenGellPC05•Yeer Avenge — — — etedeoliele9CA7PtaiddiOn reta10P50 Dni6ndWGPCO Table 7-1: GPCD Goals (5-Year Rolling Avorago) DESCRIPTIONS Total GPCD' Resktential GPCD• (Lral% 'i - Ibwwy GPCD Baas IFM6-Year Rolling Average) UNITS AVERAOE2O20.2024 2030 GPCD 213 GPCD 84 201 OD 2035 191 `Total GPCD =(Total Gaautts In System t Permanent Popuratlun) • 365 •Rosidaerial GPCD= (Gallons Used for Renickel lat UseReeldenlrel Population)' 365 57 Table 7-101d4rates the historic and ;Selected tntaland residential GPCD trendse 2020 6ecauseweather and drought resttiktiorls can *Intl lraitykdki nce water use, annual conaimotioncanvary widely. To uininlirn tim effects of 60oft-term vitae r(trctuaticrl5, the City hacks (114x) teak ttS;r10 fore-yEar rolling average, which provides a more reliable measure of Iorg-term jxogress toward conservation objectives. Drought Stage Effects on GPCD GPCD CATEGORIES 2019 NO PR000NI STAGE 2020 STAGE 2021 2022 2023 2024 STAGEI STAGE I STAGE I STAGE 3 Non •Residential GPCD Residential GPCO Intel GPCO Change in Total GPCO Change In Non-RnsSdongal GPCO Change in Residential GPCO 0 69 142 2019 NGIYO.ENT SVGA 142 59 201 0 0 0 129 62 191 40544 -92% 508% 146 67 213 1b2 168 146 65 67 59 217 235 205 8O% 16.9% 2034 13.2'/. 41% 1Ct5% -13,l% 8Oh% -2.991% 3.08%-119474 GPCD by Type, Year, & Drought Stage 62 120 67 146 2021 65 162 2022 67 168 ■ Non•ResldeMWOPCP ■ RcrwQrn6AlGPCP 2023 suett Sipe? vim ilNdmivnredontAadl U../OM Siege, wanfl MSnledoOUeowma InOZ•. 59 142 2024 311li1zf) twit GPCD CATEGORIES 2019 no 000J14T Eu3E 2019 ItO °ROVGon STAGE agitsco--,77.1•41w4P111141t -.4 • 2020 2021 2022 2023 2024 STAgEI STAGEI STAGEI 51AGEI STAGE) 62 5.08% 65 -2.99% Residential GPCD by Year & Drought Stage 2020 woe 2021 SWitl . Roildontto16PC0 2022 SOili' gnat 2023 59 2024 Star 2wn inp'auntaicnlAwd. tz. O24:St. a 2Wei ilh'SIHntnt(dnn O.iwnWn Ka2024. r- te 7 7.3 Analysis of Best Management Practices To update the Water Conservation Plan, the City evaluated Best Management Practices (BMPs) outlined In the TWOB's Water Conservation Best Management Practices Guide. Table 7-2 summarizes the City's implementation status, planned actions, and schedule for each applicable BMP for Municipal Water Providers and Wholesale Water Providers. The City's review focused on identifying both longstanding conservation measures and new or enhanced practices planned for implementation during this planning cycle. Table 7-2 presents the current and planned Implementation schedule for BMPs across key program areas, Including municipal planning, system operations, landscaping, public education, financial incentives, conservatinntechnalogy, and regulatory enforccment.Thc City of Corpus Christi continues to strengthen its conservation framework by incorporating a broad range of BMPs. These efforts include maintaining a Water Resource Manager fulfilling the role of Conservation Coordinator shoe 1988, implementing an Outdoor Watering Schedule, and sustaining public education partnerships that date back to 1992 with the Museum of Science and History's Xeriscape Learning Center. New and evolving initiatives include the Residential Leak Repair Program (in planning), graywater system implementation urx;or the 2021 Plumbing Code, and the expansion of water reuse projects through 2025. Corpus Christi maintains close coordination with its wholesale customers through regular meetings, updates, and individualized support. The City's Water Conservation staff are available to assist wholesale partners in developing and implementing conservation programs tailored to their local needs. Wholesale Conservation Rates The City Is evaluating rate structures to encourage conservation while maintaining cost recovery and operational sustainablllty. Future consideration will be given to tiered or efficiency -based rate options for wholesale customers to reinforce regional conservation goals. Water Conservation Education and Public Awareness Corpus Christi operates a comprehcnsfvo conservation education and outreach program. Efforts include school -based curricula such as Learning to Be Water Wise and The Water Source Book, community programs through the Xeriscape Learning Center and Design Garden, and public information campaigns via TV, radio, print, and billboards. These programs emphasize practical, actionable steps residents can take to reduce water use. The Water Hotline (361-826-1600) continues to provide the public with free conservation kits and educational materials. Financial Incentives and Rebates The City offers and continues to evaluate rebate and retrofit programs that support direct customer participation, Including: Residential Toilet Incentive Program (under consideration) • Plumbing Assistance for Economically Disadvantaged Customers (Residential Leak Repair Program) — (In planning stage) • Custom Conservation Rebates (under consideration) Showerhead, Aerator, and Toilet Flapper Retrofit Kits (active since 2020) Waterwise Landscape Design and Conversion Program These efforts complement broader initiatives such as rain barrel programs, landscape irrigation evaluations, and targeted outreach to large water users. Corpus Christi Integrates conservation BMPs Into Its Tong -term Water Conservation and Drought Management Plans. Many of those efforts, such as system water audits, rouse projects, and landscape Irrigation management, are updated periodically to align with changing state regulations, code amendments, and new conservation technologies. Upcoming efforts include expansion of graywater reuse, completion of a residential reclaimed -water fill station (2025), and continued Integration of conservation goals Into city ordinances and operational policies. Table 7-3i Water Conservation Best Management Practices Implementation Schedule Celt abiwire .rdPtXGaa n4-•rW.al Adapavl eco,. i *Aare a1M. rhnr.s Q,rwervatfnn An-or:ki R Pf,701, ,g 2.1 22 23 arose taiknOcadratot Coq RiaWnwtaAria`v %ttatuwefr4t,gri.Fanlr4 MOtl.Fantr 2A uetornarCronaertretkrrMeech toRioritheBLIPSOaauon 1988 ✓ Win limign.11984 ()mobs Ceetkorcopaut V.VtaCetann Ao{tunCest nae&JWIAnlV'gplar l'priu.rcros.Tlya Aticw Ibo City to tktcamno the Elfatbr,.zn of fhb PodrakkTwncot Vo$lnpet Tnwsrda gauSared. 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AaeaoaA tohtaplaOWilke Wtae lest Je-Ts'n CooxKy Othsti,210.Atioue WIaMvald envOntneer-gGectun 5b Th Sad Anvdvdhtst633251 Cassratkn Oinacs Yavi+g S Ifa ohawrc OdamtPad tots Inwotan Staa:sd9 2001 2001 ✓ Wales Fe wtr MYagwiblle Rutin $calm 55cOngviu) putt itW ordnemalawfng wde HduncarnM a htmt:A to iyna a bettemf lntie15.ka y +al siatSLtaL3ty knifte aenila3140111t a I w.dn-edllosd nbIgrituet mote iota tuunslrne to I IQedrncepnt.It. tdtrdxa.* cage ttududt IlthltaaScs NA eat Ow tuft gas au. Watt/ ro-twae Mrapfm91t QafrmcKSscJb155-ibt (lad Adaei'a120101 8.0 Metering, Water Use Records, Control of Non -Revenue Water, Leak Detection, & Repair One of the key elements in water conservation Is careful tracking of water use and control of logs. Reducing non -revenue water is one of the few conservation programs that directly impacts rates. Programs for universal metering, meter testing, meter repair, and periodic meter replacement have been developed using American Water Works Association (AWWA) standards and are essential elements In Corpus Christi's program to control losses. 8.1 Practices to Measure & Account for the Amountof Water Delivered Water deliveries from Lake Corpus Christi, Choke Canyon Reservoir, Lake Texana, and the Gdlurado River are metered by the City using meters with accuracy of at least ±5%. Authorized agonies can access the meters at all reasonable times, and meters are calibrated to maintain the required accuracy. • 8.2 Monitoring & Record Management Program for Determining Delivering, Sales, & Losses Corpus Christi has an effective record management system In place. As required by TAC Title 30. Part 1, Chapter 288, Subchapter A, Rule 288.2 (a)(2)(8), the Corpus Christi Water record management system allows for the separation of orator sales and uses Into residential, commercial, municipal, and Industrial categor les. This Information is included in the TCEQ-required Water Conservation Annual Report, as described in Section 7.0. The City of Corpus Christi meters all the connections In the distribution system. The meter distribution by water use category is included in Table 8 1 below, Meters range in size from 5/8 Inches to i6 Inches. All meters met AWWA accuracy standards when Installed. As of October 2025, there were a total of 98,169 active retail customer meters in the city. Table 8-1: Meter Distribution !ablea-1: Meter Ixslrtx,tkw METER TYPE BY WATER USE CATEGORY TOTAL NUMBER Residential-5inale FenRy 88,659 Resden tial - Mutti 1-emiW IndusIratlM ng 18 Commercial 6,758 Institutional 986 Other/wholesale 11 I TOTAL 96169 Metering Is a critical aspect in water conservation. It provides a method for cuaturrlets to n3lato their water usage to their utility bill. For the City, meters help keep track of water use to target areas of inefficiency or locate areas where there maybe 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% ongoing metering program: Required metering of all connections • A policy for tho Installation of adequate, properly sized meters as determined by a customer's current wator use patterns Direct utility metering of each duplex, triplex, and four-piex unit, whether each Is on its own separate lot or there are multiple buildings on a single commercial lot Metering of all utility and publicly owned facilities Use of construction meters and ar ePss keys to account for water used In now construction Implementation of the State requirements in HB 2404, passed by the 77th Legislature Regular Section and Implemented through Texas Water Code 13.502, which requires all new apartments be either directly metered by the utility or sub -metered by the owner Regular replacement of 5/8" and 3/4" meters af tor 15 years of service An accounting of water savings and revenue gains through the Implementation of Corpus Christi Water's meter repair and replacement procedures Each year, the Clty estimates annual water savings achieved through its meter repair and replacement program. These savings are determined by using a statistical sample of meters analyzed as part of the ongoing replacement effort. The Clty follows a meter replacement policy that prioritizes action when a customer reports potential meter inaccuracies. Records of all replaced meters are maintained In the City's Maximo asset management software. In most cases, meter replacement is preferred over repair due to the higher cost and lower reliability of repairing older meters. The City has improved operational efficiency and reduced water loss by phasing oul aging meters and converting standard units to automated meter reading (AMR) technology. Within this system, AMR refers specifically to meters capable of automatically transmitting meter reads, while advanced metering infrastnrcture (AMI) refers to the broader systorn infrastructure that supports data collection, communication, and billing operations. The AMR system remotely records consumption data and automatically integrates it into the billing process, enhancing accuracy and reducing manual labor costs. Currently, approximately 99 percent of the City's meters are equipped with AMR technology, resulting In more reliable readings and Improved water accountability. The meter replacement program Is implemented In coordination with the City% AMI deployment, as further described in Section 10.5. 8.3 Leak Detection, Repair, & Water Loss Accounting A system water audit is used annually to monitor the total amount of non -revenue water. Many variables influence revenue and nonrevenuecomponents of the utility's water system, Including meter Inaccuracy, data discrepancies. unauthorized consumption, reported breaks and leaks, and unreported losses, Since the TWDB approved the initial water loss thresholds In 2014, the American Water Works Association (AWWA) Water Loss Control Committee has developed updated water loss performance indicators based on standardized AWWA water audits, and more recent, quality -controlled statewdie audit data Is now available to Wean revisions to the thresholds- New thresholds developed Using statewide water loss audit data front 2015 to 2020 and reflect industry -accepted metrics that better distinguish between apparent and real water loss. In particular, the revised approach emphasizes real loss performance Indicators -such as gallons per connection per day and the Infrastructure Leakage Index (ILI)-rather than percent water loss, which can be misleading and does not adequately reflect system leakage or operational conditions. The thresholds are based on service connection density rather than population to align with current Industry standards. These water loss threshold values address canccrns with utilities that experience high volumes of real water loss and ensure that water loss mitigation Is considered as an effective strategy for utilities receiving financial assistance for drinking water prolects. The thresholds apply only to retail public utilities requesting financial assistance front the TWDB for a water supply project and are used toevaluateapplications received after July 1, 2023. The City uses gallons per capita per day (GPCD) as its primary metric for tracking water loss. In the 2020 Plan, the City reported a water loss of 15 GPCD, with targets of 13 GPCD by 2024 and 12 GPCD by 2029 (Table 8-2). For2024, the actual water loss was 20 GPCD, while the five-year average (2020-2024) was 16 GPCD. Updated goals for the current planning period are presented in Table 8-3. These goals are considered conservative, as the Citys average water loss percentage from 2020 to 2024 was 7.5% well below the 10-12% benchmark range commonly used In urban Texas Regional Water Plans. The Infrastructure Leakage Index (ILI) measures how efficiently a water system manages real (physical) losses by comparing existing leakage to the theoretically lowest possible leakage. Each city's IU is unique and depends on factors such as system pressure, the distance from curb stops to meters, and the number of service connections per mile of main. In 2024, the Citys Unavoidable Annual Real Losses (UARL) were estimated at 1.5 million gallons per day, representing the minimum leakage achievable with current Infrastructure and service density, Corpus Christi Water's adjusted IU of approximately 2.07 places it among the most off iclent systems In the United States, An ILI below 3.0 Is considered highly efficient, and the goals outlined In this Plan alm to maintain that level of performance over the long term. Table 8-2: Water Loss GPCD Target Goals (2020 Plan) Description Units 2019' 2024 2029 Masted Watertossero 15 12 *2019 Water trs GPCD (15) =(2019 Tol al Water Loss (1770,594,9341) i (2019 Petmawnt Popololioo (320,554)) 4 305 34 Table 8-3: Water Loss GPCD Target Goals Description Units Average (2020.2024Y 2030 2035 Adjusted Water LessGPCD OP(2) 16 13 11 'Average Water Lon GPM) for2020-2024 (15) = (Average Total Weter Lots2020-2624 (r,8Re,054,208)) 4 (Avenge Permanent Population2020•2DM I320,696)) a 366 The City maintains a dedicated team of employees committed to identifying and repairing leaks throughout the water distribution system. A crew of round-the-clock responders follow established procedures to promptly locate and repair teaks, minimizing water loss and service disruptions: O 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. O On -site crews may need to close valves to Isolatethe 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. O After fine locates are complete, distribution leak crows respond to the leak and make all needed repairs. 0 After repairs are complete, the dirt and dressing crews back fill the area and replace grass as needed. 9.0 Other Required Conservation Measures 9.1 Public Education & Information The City Is committed to keeping our community Informed, inspired, and engaged in protecting our most precious resource: water. Through a wide range of media platforms and communication channels, we deliver clear, consistent, and compelling messages that highlight the Importance of water conservation and efficiency. Our public Information program alms to educate and empower customers by raising awareness of the region's water resources and encouraging everyday actions that promote sustainabllity. In addition to ongoing education and outreach, the department uses these communication tools to share timely updates during critical events such as drought conditions or water -related emergencies. 35 The City 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 to Identify any new potential opportunities. To keep track of the Impact of these various programs, Corpus Christi records: • The number of presentations made Thenumber and type of curricula materials developed and/or provided The number and percentage of students reached by presentations and by curriculum • Maid bu�rggetrelated to conservation Each year, the department publishes and mails the Consumer Confidence Report to every customer, ensuring transparency and trust. This report, also available online for easy access by all residents, Including new customers, provides detailed information on local water quality, system performance, and conservation resources to help customers mako informed decisions about their water use. Public school education programs playa vital role In promoting water conservation. These programs not onlystrengthen local conservation efforts and enhance Corpus Christi Water's community Image but also support Texas state education goats by helping students learn about the Importance of protecting our water resources. When students share what they learn about water sources and conservation with their families, they can Inspire real changes in household habits, leading to meaningful water savings both now and in the future. Corpus Christi offers various educational programs to all grade levels throughout the City. These programs Include: Learning to be Water Wise This program is used In Rh -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 teaks, are given to each student. Water Source Book The Water Source Book, developed by the Water Environment Federation, reinforces water resource issues with 26 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 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 sponsors events, which brings environmental resources to teachers throughout the %as Education Agency Region 2 area. The City also participatess in annual events, offering valuable opportunities and resources for teachers, students, and the general publio. Xeriscape Learning Center and Design Adjacent to the Corpus Christi Museum of Science and History, The City 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 aro used as teaching tools for children and adults. Other Educational Materials The City 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. 3G V 9.1.1 Public Information The City 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 convoy urgent messages, such as those about drought or emergencies. Each year, Corpus Christi malls 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. Corpus Christi Water employs the following methods to raise water resources awareness and to instill the importance of conservation in the community: Multi -Tiered Media Campaign Annual television, radio, and print campaigns promoting water use of flciency. Agreements with radio and television stationsprovide 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 wobsito 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 Corpus Christi Water, the TWDB, and Texas A&M Agril.lfe Extension, and are available at multiple City locations and programs. City Call Center & Request Line The City's Call Cantor (361-826-CITY) was created to encourage customers to report water lino breaks and to request service calls. Customers may also utilize a dedicated Water Hotline number (361826-1600) to request water conservation kits and other Information. Water conservation staff implemented or enhanced public education activities forthe lasttfive-years are summarized In Table s-1. ri Table 9-1: Public Education and Information Summary' Type 2020 2021 2022 2023 2024 IJn No'. nb. Reaoh No. Ready Brochures 25 25,000 26 10.000 Mmage rrruwltictl on Utility It 14 88,000 }2 200000 liens Res 2 14000 4 154000 27 200,000 1 V/Radio VBAs 630 100,000 720 85.000 0 0 t.400 210.003 RadaPublic Service Amawrmnmta 630 100,000 720 6JucauwmtSchool Far co urns 1A0112t. Sernkrars, aresanlalker 68.000 300 350000 1,342 210000 4 300 4 303 0 0 12 240 1 30 Cnmmont(yryents - 1 153 5 300 5 300 Soc13114o68 U§ic `. ooki 60 70 40000 N8 221,304 25 64,332 SocINMerle (X, formerly Thine') 60 Social Merin flnetagrrnl 50,000 70 40,000 20 125,600 25 97A00 Social 1.Iada 1YouTubel FacetyTOAS 9.2 Water Rate Structure 60 3 60 The City has Conservation -oriented water rate structures in place. The current rate structure consists of the following fiveclbsses: Residential, Commercial, Large Volume, Irrigation, and Raw Water. Each customer is first charged a flat rate based on molar size as outlined in Table 9-2. Usage charges are then assessed according to customer class .asshown in Table 9-3 to Table 9-8. The rate structures for all customer classes are designed to encourage water conservation, and an increasirig block rate structure is in place for residential and irrigation classes to reduce peak usage. The City analyzes each customer rlaasand sets rates in proportion to those classes which place the most demands upon the water system. The rates shown In the tables are effective January 1, 2026, and are subjecttochange as Carpus Christi Water continuos to refine its rate structures to improve Impact on water conservation and manage cost of service most effectively. 38 Mete; Size Table 9-2: Minimum Monthly Charge (For First 2,000 Gallons) Service Charge (inside city limits) Service Charge (outside city limits) 5/6• X3/4• - Real/Witty S1725 $15,95 6/6'X3/C—Oommerctd $17.25 S15.35 1' S43:13 33387 11/2' 38025 S7973 2' SI38.00 3' $259:75 $239.17 4• $431.25 Snow $846:75 $67693 8 S1,552.50 $1A3498 to- S2.98740 $2,39183 $2.95,50 $2.391,83 Table 9-3: Residential Monthly Volume Charges Per 1,000 Gallons (Above The Minimum Level) Monthly Volume Inside City Limits Outside City Limits Fist2,000 $075 S075 Next4,000 S406 Next 9,900 $7.11 S406 Nod 10.000 $1137 511.17 Over 25,000 51624 $16.24 Table 9-4: Commercial Water Rates Per 1,000 Gallons Monthly Volume First 2,000 Inside City Limits Outside City Limit:; Oust 2000 $406 5075 34.08 Monthly Volume Table 9-5: Large Volume Inside City Limits Outside City Limits Fist Io000000 545,50000 545,50000 Uer1000 ,000{per 1,000) $434 $424 3D Table 9-6: Residential & Commercial Irrigation Water Rates (Water on Separate Meter) I Monthly Volume Inside City Limits Outside City Limits Ps1,000G4ncu Pet 113000allon Table 97: 'Agency for Resale. Metered at Site of Treatment 4180 411.17 Water Delivered Through City Facilities Table 9-8: Monthly Charge for Raw Water per 1,000Gallons Raw Water Rate Payers ICL and OCL Raw Water Non -Rate Payers Raw Water Agency for Resale Slip $138 9.3 Reservoir System Operation The City relies primarily on a surface -water network built around the Lake Corpus Christi and Choke Canyon Reservoir system (within the Nueces River Basin) to serve hundreds of thousands of people In the region. These reservoirs supply raw water that is treated and delivered for residential, commercial, industrial, and municipal uses. This reservoir system Is managed under a multi -phase operational structure designed to ensure reliable supply, maintain water quality, accommodate recreation, and satisfy downstream ecological/regulatory flow requirements. 9.4 Implementation & Enforcement The City completes the TCEQ required Water Conservation Annual Report by May 1 of each year. The report Includes various water conservation strategies that have been implemented, Including the date of implementation. Additionally, the report includes progress made on the five- and ten-year per capita water use goals from this Plan. If the goals are not being mot, Corpus Christi Water documents why not. The amount of water saved Is also documented in this report. 9.5 Requirement for Water Conservation Plans by Wholesale Customers The City 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 regions water security and also ensures that customers, both inside and outside the City, are treated equitably. This Section explains the contractual requirements between the City and its wholesale customers. Each of Corpus Christi's wholesale customers with 3,300 connections is responsible to develop, implement, and update water conservation plans or conservation measures using the applicable requirements of TCEQ Water Conservation Plans, Drought Contingency & Emergency Water Management Plans, Guidelines and Requirements, and Texas Administrative Code 30 TAC Chapter 288(a)(2)(C). The best way to reduce water waste and Increase conservation Is to set targets and goals. As mentioned in Section 7.2, the City has adopted a water conservation goal of achieving a one percent annual reduction In total water consumption. This target corresponds to a projected residential GPCD of 67 and a total system GPCD of 191 by the year 2035. 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 9-9. The GPCD of wholesale customers 1s 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 rogion's water supplies. ■1 Table 9-9: Wholesale Customer GPCD Targets Wholesale Customer Baseline 5-YearGoal 10-Year Goal hit t45 '41 BeeviteWines Supply District 130 190 13s NiecesOouittyW00 41Pocl tiren1 407 sei G50 San PatticiaMScpal wolp I1itAtci 4C7 134 • Note: Nat Avalatte Each wholesale customer Is asked to provide a copy of their Water Conservation Plan and required Water System Audit (as required by the TWDB water audit reporting requirement as specified by House Bill 3338) to Corpus Christi Water. This will be required In any new contracts developed with wholesale customers as specified In 30 TAC Chapter 288. In 2000, Corpus Christi Waters wholesale customers accounted for slightly over one quarter of the raw water pumped. By 2023, wholesale customers accounted for more than one third of the raw water pumped. As needed, the City will hold meetings with their wholesale customers to provide information on Corpus Christi Water's programs and conservation best management practices. 9.6 Coordination with Regional Water Planning Groups Corpus Christi Water works with the Costal Bend Regional Water Planning Group (Region N) to help develop the water conservation plan documents. This Plan Is consistent with Regional Water Planning Group and their methodology and structure. Letters documenting that a copy of tho Water Conservation Plan was sent to the Co-Chaks of the TWDB Region N Water Planning Groups and are attached In Appendix E. 10.0 Additional Conservation Efforts 10.1 Our Water Resources The Cityt plumbing code is based on the 2021 International Code Council (ICC) standards with tonal amendments. The City has adopted the International Plumbing Code, which Includes regulations for the design, construction, and maintenance of plumbing systems to ensure safety and compliance with public health standards. For more detailed information, you can refer to the official city website or the FCC's resources, with the followinglanguage to be consistent with the 1.28-gallon toilet requirement of the Texas Health and Safety Code, Title 5, Subtitle 8, Chapter 372, effective January 1, 2014. 'IPC Section 604.4.1' added to read as follows: 604.4.1 State maximum flow rate. Where the State mandated maximum flow rate is more restrictive than those of this section, the State flow rate shall take precedence. 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 5210.3(24)). The City currently has five reclaimed water use customers and recognizes thatthe 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, the City 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 rouse customers which include other golf courses, parks, and recreational areas. In 2024, the City supplied 4,100,000 gallons of reclaimed water to approximately 1,200 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 muse. 10.3 Landscape Water Management Ordinance g55-151 establishes time -of -day restrictions to promote efficient water use and reduce waste. Under this regulation, landscape watering using sprinklers or irrigation systems Is not allowed between 10:00 a.m. and 6:00 p.m., when evaporation rates are highest. However, residents may still water by hard or use drip irrigation during these hours, and brief system operation Is permitted for maintenance or repair. These measures are Intended to conserve water resources and encourage more responsible outdoor watering practices. Exceptions to these restrictions are covered under the declared drought stages as Included In the most up-to-date version of the Corpus Christi Drought Contingency Plan, adopted under this same ordinance. 10.4 Prohibition on Wasting Watef Under the Prohibition on Wasting Water Conservation Measure, It is unlawful to waste water. Actions leading to the wasting of water are prohibited and will be enforced. No person shall: O Allow water to run off property into gutters or streets. ID 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. 0 Allow water to flow constantly through a tap, hydrant, valve, or otherwise by any use of water connected to the City water system. 0 Use any non -recycling decorative water fountain. ® Allow Irrigation heads or sprinklers to spray directly on paved surfaces such as driveways, parking lots, and sidewalks In public right-of-ways; O Operate an irrigation system at water pressure higher than recommended, causing heads to mist, or to operate with broken heads. grat 1 r MILL 10.5 Advanced Metering Infrastructure AMI unlocks the benefits of leveraging granular water consumption data and empowers utilities to: ® Minimize water loss and unbllled consumption by responding swiftly to indicators of leaks, main breaks, and meter tampering A Foster greater operational transparency and efficiency 0 Optimize resource allocation and streamline workflows 0 Enhance customer service through user-friendly digital platforms p Provide insights for customers to understand and manage their water usage 0 Facilitate targeted conservation ef forts and programs Corpus Christi Water currently utilizes a fixed -network AMR system that enables remote meter data collection across the utility system. As the City continues to modernize its metering infrastructure, it is transitioning toward broader AMI capabilities and the advanced communications and data management functions associated with AMI systems. Installation & Deployment The City rolled out a fixed -network AMR system covering approximately 146,000 meters for water. Because meters are read automatically rather than walking or drive -by meter readers, Corpus Christi Water -staff time and access issues (yards locked, pets. etc.) are significantly reduced. Also, a study of the pilot systern showed expected savings of about US $ 32 million aver 20 years (clout US $t6 million/year) from the AMR Implementation. Additionally, the City separated out savings and cost -avoidance by removing the need far montidy manual reads. Key Benefits Improved Accuracy & Billing With AMR, the City gets regular, automated readings (for example twice daily readings In the pilot) which improves data accuracy and reduces the number of estimated bills, re -reads, and customer disputes. Better data also meansbetter detection of anomalies (e.g., unexpectedly high usage, leaks). The City has converted -99 %of its water meters to AMR, enabling improved meter accuracy and reduced manual reading cost Enhanced Customer Service/Usage Visibility Because the system can deliver more frequent data, customers (and the utility) have more timely Insight Into consumption trends, enabling earlier detection of problems (e.g., leaks, unusual usage) and opportunities for conservation. For example, In pilot descriptions, the City noted the ability to "jive a direct call ... if somebody is usingan inordinate amount of water." This transparency also builds trust In utility billing and service reliability (fewer surprises). Water Conservation/System Efficiency Because AMR enables more aceurate and frequent meter data, the utility is better able to monitor and manage water usage, detect leaks or inefficiencies, and reduce losses. Benefits also include better demand management, faster outage or leak detection, and improved asset management Foundational Infrastructure for Other Applications In the case of the City,. the AMRdeployment served as the launch -pad for a broader wireless mesh/city-wide WIFI/smart infrastructure Investment. For example, the AMR system led to deployment of a wiretess network covering 147 square miles, enabling other municipal applications (public safety, mobile field workers, building inspection, etc). In other words: the meter -reading network becomes multi -use backbone, not Just for utilities. Sending Leak Alerts Improving Billing Providing Detailed Transparency Usage Data 10.6 Rainwater Harvesting The City has developed a rainwater harvesting program that allows Corpus Christi Water customers to purchase rain barrels andcapture rainfall for reuse. Those systems collect water from rooftops and store It for uses such as irrigation, helping reduce demand on potable water and manage stormwater runoff. For those interested in getting started, the Texas Water Development Board provides the Texas Manual on Rainwater Harvesting, a practical guide covering system design. components, water quality, costs, and maintenance best practices for residential and small -sole commercial applications. 46 11.0 Potential Conservation Programs 11.1 Customer Characterization One of the newer BMPs is Customer Characterization, the practice of analyzing a utility's customer data trends towards the purpose of realizing targeted water savings. Undertaking a Customer Characterization allows the utility to better understand how water is used within its service area, to recognize the differences between various subsets within its customer base, and to facilitate positive experiences between the utility and the customer that inform both parties of their resr-wctive values and familiarize high water users with Ways to reduce their usage. Just as the motivations for deploying an HMI program will be different across utilities, each utility's purpose for embarking on Customer Characterization will be different, and the analysis should be crafted with their specif ic goals) in mind. Customer Characterization is one of the most effective tools for tailoring a utility -wide consenration program, because it yields actionable insight and stimulates community conversation. 11.2 Plumbing Assistance Programs for Economically Disadvantaged Customers Plumbing assistance programs help both utilities and customers by conserving water and lowering household bills. These programs are most effective when targeted toward economically disadvantaged homeowners, who often struggle to afford plumbing repairs or replace Inefficient fixtures. By funding or performing repairs for leaks and replacing high -flow toilets and showerheads, utilities can help customersreduce their water use and bills while improving payment reliability. At the same time, the utility benefits from overall water conservation and reduced system demand. The success of such programs depends on identifying and engaging a sufficiently large ' group of qualifying customers who will benefit from and participate in the assistance offered. 11.3 Conservation Programs for Industrial, Commercial, & Institutional Conservation programs for ICI accounts am essential for increasing water efficiency among ICI users. For many utilities, consumption In the ICI sector isa significant proportion of total consumption, and average water use by ICI customers Is higher than average water use by residential customers. In these circumstances, significant overall reductions in water demand can be more rapidly achieved by developing a Conservation Program for ICI Accounts. 11.3.1 Identify ICI Accounts Identify and rank commercial, Industrial, and Institutional accounts (or customers If the agency chooses to aggregate accounts) according to water use and highest conservation potential. For purposes of this 13MP, ICI accounts are defined as folbws: Commercial Accounts: any water user that provides or distributes a product or service, such as hotels, restaurants, office buildings, commercial businesses or other places of commerce. These do not include multi -family residences, agricultural users, or customers that fall within the industrial or institutional dasslfications. Industrial Accounts: any water users that are primarily manufacturers or processors of materials as defined by the Standard Industrial Classifications (SIC) Code numbcrs 2000 through 3999 or the North American Industry Classif icatlwt System. Institutional Accounts: any water -using establishment dedicatd to public service. 7his includes schools, courts, churches, hospitals, and government facilities. All facilities serving these functions are to be considered institutions regardless of ownership. 11.3.2 ICI Customer Incentive Programs & Water -Use Surveys Impiemernt an ICI and Ctntwner Incentives Program Develop a custrxner tanlettng and markethno ctratty to prrnrkle customer Incentive:to ICaccermts such that each ICI sccler c averaga annual water demand, alter corn: dating orchid), In demand that may occur tram new ICI customers, is reduced 10 percent will Ili 10 years of the date k mtmeritation is to vixrvriernce Directly contact (Weletter. telephone. ar peroonull viral) and niter eater ere sxwnyr, and customer tncenlrvea to sit feat 10 percent of -each ICI doctor on a recurring basis Financial Incentive£ can be offered on a dollar ann,mt net riece of equipment 'etiolated aucti astudota, clothes washers, er caolino lanes conductivity meters Aromas notion ler determining the amount of Potential incentives Is uttering an open-ended irr,.entnve DEC gallon per day saved so that fealty manarg„ru raopoce the neglects. This approachputtuV IIVMarnInone de at such prupcsata. Poi utikthta which Choose to otter water -use Surveys, the surveys locked") a site visit, an avatuatiwn u1 al water -using aopanitasond WGcearres. a Cuetorner report identifying;eccrnmerideit etficixn w ne.asures with the' expected payback period, and available agency incentives . The Industrial Water Audit BIM can csovide goal guhLrct ter drv!opmentof the survey. vs 11.4 Irrigation & Landscape Ordinance Review To reinforce water conservation goals, It Is Imperative to review and strengthen Irrigation and landscape ordinances, as well as outdoor water use practices among all customers. Actively involving landscape and Irrigation professionals in this process is critical, as their expertise ensures that regulations are practical, effective, and aligned with current industry standards and technologies. By instituting firmer guidelines, leveraging AMI data, and collaborating with these professionals, the City can more effectively manage, monitor, and optimize water usage. Reviewing and updating Irrigation and landscape ordinances in partnership with Industry experts will promote the adoption of water -efficient irrigation systems, support comprehensive evaluations to Identify teaks and inefficiencies, and improve detection of remote ordinance violations. Additionally, engaging Landscape and Irrigation professionals In educational events for residents and businesses will enhance outreach efforts, encourage best practices, and further reduce reliance on outdated or inefficient irrigation methods. Review of ordinances may Include but is not limited to: • Review of the existing ordinances for alignment with the goals of this Plan; • Utilization of AMR/AMI consumption data for possible violation detection; Identification of new high -efficiency landscape fixtures; Benchmarking of the current ordinance with ordinances from other cities promoting water conservation; Identification of drought tolerant turf, groundcover, shrubs, and trees that arc allowed to be planted at new homes; Integrating landscape ordinances and other outdoor conservation strategies into land use planning; • Providing opportunity for feedback from Interested partios and citizens; and • Homeowner support for turf reduction within homeowners' associations (I-LOA). 11.5 Irrigation Design Criteria As part of the requirement that all new irrigation systems comply with stato design and installation regulations (Texas Administrative Code Title 30, Chapter 344), the City reviews Irrigation design during development reviews. The reviews verify that the landscape design meets state and City standards. 12.0 Adoption of Water Conservation Plan, Periodic Review, & Update of Plan Opportunity for public comment on the plan was provided at the City of Corpus Christi Council (Council) meeting on 5/19/2026. Appendix F contains a copy of the resolution from the 5/19/2026 Council meeting at which this Plan was adopted. TCEQ requires that water conservation plans be reviewed and, if necessary, updated every five years to coincide with the regional water planning process. This Plan will be updated as required and will be continually reassessed for opportunities to improve water efficiency and conservation based on now or updated Information. Appendix A - List of References List Of References American Water Works Association (AWWA). (n.d.). Water loss control resources (1L1/UARL/CARL overview). https://wvnv.aenva.nrg City of Corpus Christi. (2001). Agreed Order information and overview (Nueces Estuary freshwater inflows). Corpus Christi Water. City of Corpus Christi. (2020). Water Conservation Plan (Revised 2020 ed.). hnns //ww.•r.r•atpuschrisritx gpvirnedia/5inlekti/water-conservation-ptan.pol City of Corpus Christi. (2023). Drought Contingency Plan. ttnns:/fcomuschristi.legistar.com City of Corpus Christi. (2024). Corpus Christi now under Stage 3 water restrictions. https://www.cornusc hr is1ita.govinewsion sts/cofpus-christi-now-under-stage-37water- re6 00111 City of Corpus Christi. (2024). Stage 3 water restrictions—FAQs. Corpus Christi Water. City of Corpus Christi, (2025, February 25). Reclaimed water nowavailabte for residential use during Stage 3 drought restrictions. hltps:Uwvry Cat puer'hrisfit eov/newsloasts/rer.,taimed-water- now-available-for-resrdentiat-use-dutirlP-stage-3-drni Mu -restrictions/ City of Corpus Christi. (2025, June 23). City of Corpus Christi announces utilityassistance program applications now available (Project One Water). https:f/www.corpusclinstitx.gov/HEWS/hosts/ciry- ot-cornus-christi-announces-utility-assistance-progtam-applications Dow-avallablei City of Corpus Christi. (n.d.). Drought information. httpsdIwww.cornusnhristitx.envrdenartment- directoryfcorp u s-chri sti-water/d roughtintor rtlation/ City of Corpus Christi. (n.d.). Rain Barre! Program. lotus-liwl .w cnrpuschristitx.gov/rieuartment- directory/corpus-christi-watcriwa+ter-pmktanishain-harret-urneram/ City of Corpus Christi. (n.d.). Water conservation —Programs and resources. Corpus Christi Water. City of Corpus Christi. (n.d.). Water programs inws://wwwcornuschristitx.govJdepartment- direcioty/curpu$christi-water/water-nrots ams/ Coastal Bond Regional Water Planning Group. (2025). Home — Coastal Bend (Region N) Regional Water Planning Group. Corpus Christl,Tex., Code of Ordinances Ch. 55, art. XI I (Water Resource Management). lrttns://cornuschrisri.etaws.us/codelcoor ch55_arixii KRIS 6 News. (2025, lune 23). New program helps Corpus Christi residents pay water bills (Project One Water via Mission 911). htlps;f/vemY ktiStY.iattnfnewsliocat-newslin-vour- ne igttbur h000/corpus-cllfiiti/ca• ou s-christi -tau nches-project-ane-water-program A-2 LEAKSSuite Library. (n.d.). UARL and IV —Concepts & equations. https://teskssuitelibrary.co Nueces River Authority. (n.d.). Planning —Region "N" (Coastal Bend) sponsorship and process overview. Texas Administrative Code. (n.d.). Title 30, Chapter288—Water conservation and drought contingency plans. State of Texas. Texas Commission on Environmental Quality (TCEQ). (n.d.). Water conservation plans and implementation reports (TWC Ch. 11: 30 TAC Ch. 288). Texas Water Development Board. (2013). Water conservation best management practices guide (Report 362). Texas Water Development Board. Texas Water Development Board. (2016). Usinglandform and hydraulic modifications to increase the ecological benefit of freshwater inflows to the Nueces Delta (Contract No. 1400011717). Texas Water Development Board. Texas Water Development Board. (2020). Best management practices for municipal water providers (Mini -Guide). https://www.twdb.texas govlconservation/BMPs/Murtrdoer2020%20U ndate%20Files/Mu ni MiniGui de2020,pdf Texas Water Development Board. (2021). 2022 State Water Plan (interactive portal). Texas Water Development Board. Texas Water Development Board. (2024). 2022 State Water Plan (PDF). Texas Water Development Board. Texas Water Development Board. (n.d.). Municipal BMPguide: The complete guide to BMPs for municipal water providers. https://www.twdb.texas.2ov/conservation/BMPs/Mun/index.aso Texas Water Development Board. (n.d.). Region N planning group (State Water Plan portal page). Texas Water Development Board. TWDB. (2010). Guidelines for setting target Infrastructure Leakage Index (ILI). Texas Water Development Board. TWDB &Water Conservation Advisory Council. (n.d.). Municipal workgroup—Save Texas Water (BMP hub). httns://vww.savetexaswater.org Water Environment Association of Texas. (2025). One Water Summit (event page). hnps://www.weat.org/events/one-water-summit A - 3 Appendix B - Texas Commission on Environmental Quality Rules on Municipal Water Conservation Plans Texas Commission on Environmental Quality Rules On Municipal Water Conservation Plans TITLE 30 ENVIRONMENTAL QUALITY PART 1 TEXAS COMMISSION ON ENVIRONMENTAL QUALITY CHAPTER 280 WATER CONSERVATION PLANS, DROUGHT CONTINGENCY PLANS, GUIDELINES AND REQUIREMENTS SUBCH PTERA WATER CONSERVATION PLANS RULE 88.1 Definitions The foll wing words and terms, when used in this chapter, shall have the following meanings, unless he context clearly indicates otherwise. (1) Agri uRural or Agriculture —Any of the following activities: A) cultivating the soil to produce crops for human food, animal feed, or planting seed or to reducefibers; 8) the practice of Floriculture, viticulture, silviculture. end horticulture, Including the ultivation of plants in containers or non -soil media by a nursery grower; C) raising,feeding, or keeping animals for breeding purposes or for the production of cud or fiber, leather, pelts, or other tangible products having a Commercial value; D) raising or keeping equine animals; E)wildfre management; and p)planting cover crops, Including cover crops cultivated for transplantation, or leaving and idle for the purpose of participating in any governmental program or normal crop or vestock rotation procedure. (2) Agri figuraluse--Anyuse or activity involving agriculture, includingirrigation. (3)Bes management practices —Voluntary efficiency measures that save a quantifiable amount of water, ither directly or Indirectly, and that can be implemented within a specific period. (4) Con ervatiom-Those practices,techniques. and technologies that reduce the consumption of waters dueethe loss or waste ofwater. improve the efficiency in the use of water, or increase the iecy lingand reuse of water so that a water supply is made available forfuture oralternative (5) Commercial use --The use of water by a place of business, such as a hotel, restaurant, or office building. This does not include multi -family residences or agricultural, industrial, or institutional users. (6) Drought contingency plan --A strategy or combination of strategies for emporary supply and demon management responses to temporary and potentially recurring water supply shortages and other water supply emergencies. A drought contingency plan may be a separate document identified as such or may be contained within another water management document(s). 8-2 (31 mstltunonatuse—The use of water by en establishment dedicated to public service, such as a school, university,church,hospital, nursing home, Prison, or government facility. AU facilities dedicated to public service are considered institutional regardless of ownership. (9)Irrigation--The agricultuatuse of water for the lnigatlon of crops, trees, and pastureland, incttiding, but not limited to, golf courses and parks which do not receive water from a pubtio water supplier. NM Irrigation water use efficiency —The percentage at that amount of irrigation water which is beneficially used by agriculture crops or other vegetation relative to the amount al water diverted from the source(s) of supply. Beneficial uses of water for irrigation purposes include, but are not limited to, evapotranspiration needs for vegetative maintenance and growth, salinity management, and leaching requirements associated with irrigation. (11) Mining use —The use of water for mining processes including hydraulic use, drilling, washing sand and gravel, and oil field re -pressuring. (12) Municipal use --The use of potobte water provided by a public water supplier as well as the use of sewage effluent for residential, commercial, industrial, agrlcuhuf al. institutional. and wholesate (13) Nursery grower --A person engaged In the practice of floriculture, viticulture, silviculture, and horticulture, Including the cultivation of plants In containers or nonsoil media, who grows more than 50% of the products that the person either setts or bases, regardless of the variety sold, leased, or grown. For the purpose of this definition, grow means the actual cultivation or propagation of the product beyond the mere holding or maintaining of the Item prior to sale or lease, and typically includes activities associated with the production or multiplying of stock such as the development of new plants from cuttings, grafts, plugs, or seedlings. (10) Pollution —The alteration of tile physical,thermal, chomisat, or biological quality of, or the contamination of, any water in the state that renders Inc water harmful, detrimental, or injurious N humans, animal Lite, vegetation, or property, or to the public health, safety, or welfare, or impairs the usefulness or the public enjoyment of the water for any Lawful. orreasonable purpose. (15) Public water supplier —An individual or entity that supplies warofto the public for human consumplion. (16)Regional water planning group —A group established by the Texas Water Development Board to prepare a regional water plan under Texas Water Code, 616.053. (17) Residential gauons per capita per day —The total gallons sold ter residential use by a public water supplier divided by the residential population served and than divided by the number of days In the year. (16) Residential use --The use of water that is billed to single and multi -family residences, which applies to Indoor and outdoor uses. (16)Retail public water supplier —An individual or entity that tor compensation supplies water 10the public for human eonsthnphat The temp does not include en individual or entity that supplies water to itself or Its employees or tenants when that water Is not resold to or used by others. (20)Reuse-40o autherizod use for one or more beneficial purposes of use of water that remains unconsumed atter the water is used for origtnat purpose of use and before that water is either disposed of or discharged or otherwise atlowod to how into a watercourse, lake, or other body of state-owned water. (21) Total use —The volume el raw or potable water provided by a public water supplier to billed customer sectors or nonrevenue uses and thevolume lost during conveyance, treatment, or transmission of that water. (22) Tonal gallons per capita per day(GPCD)—The total amount of water diverted and/or pumped ter potable use divided by the total permanent population divided by the days of the year. Diversion volumes of reuse as defined in this chapter shall he credited against otal diversion volumes fortlte purposes of calculating GPCD for targets and goals. (23) Water conservation coordinator --The person designated by a retail public water supplier that is responsible for implementing a water conservahon plan. (24) Water conservation plan --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). (25) Wholesale public water supplier —An individual or entity that for compensation supplies water to another for resafetothe puhno for human consumption. The term does not include an individual or entity that supplies water to itseti or its employees or tenants as an incident of that employee or tenancy when that water is not resold to or used by others, or an individual or entity that serviceor water to another individual or entity. but does not own the right to the water which is conveyed, whether or not for a deliver/fee. (26) Wholesale use —Water sold from one entity or public water supplier to other retail water purveyors for resale to individual customers. Source Note: The provisions of 0288.1 adopted to be effective May3, 1993, 10 TexReg2558; ended to be effective February21, 1999,24 TexReg949; amended to be effective Apti127,, 2000, 25 TexReg3544: amended to be effectiveAugusr 15, 2002, 27 TexReg 7146; amended to be effective October 7,2000, 29 TexReg 9384; amended to be effective January 10, 2008, 33 Texfleg 193: amended to be effective DOcember6, 2012, 37 TexReg9515; amended to be effective August 16, 2018,43 Texlieg5218 B-4 TITLE 30 ENVIRONMENTAL QUALITY PART 1 TEXAS COMMISSION ON ENVIRONMENTAL QUALITY CHAPTER 288 WATER CONSERVATION PLANS, DROUGHT CONTINGENCY PLANS, GUIDELINES AND REQUIREMENTS SUBCHAPTER A WATER CONSERVATION PLANS RULE §288.2 Water Conservation Plans for Municipal Uses by Public Water Suppliers (al A water conservation plan for munlcipelwator use by public water suppliers must provide Information In response to the following. If the plan does not provide information for each requirement, the public water supplier shall include In the plan an explanation of why the requirement is not appijcable- (1) Minimum requirements. All water conservation plans for municipal uses by public water suppers must Include the following elements: (A) a utlllly profile in accordance with the Texas Water Use Methodotogry, including, but not limited to, information regarding population and customer data, water use data (including total gallons per capita per day(OPCU) and residential GPCD), water supply system data, and wastewater system data; (B) a rcord management system which allows for the classification otwater sales and es Into the most detailed level of water use data currently available to it, including, if possible, the sectors listed in clauses (1) - of this subparagraph. Any new billing system purchased by a pubticwater supplier must be capable of reporting detailed water use data as desc ibed in clauses p) - (vl) of this subparagraph: p residential; I) single leanly; II) multi -family; it commercial; ii) institutional.; N) industrial; v) agricultural; and, vi) wholesale. (C) spa tie, quantified Live -year and ten-year targets for water savings to include goats tor water loss programs and goals 1or municipal use in total GPCD and residential GPCD. The goals estab0shed by a public water supplier under this subparagraph are not enforceable; (D) metering device(s), within an accuracy of plus er minus 5.0%in order to measure and account amount of water diverted from the source of supply; (E) a program for universal metering of both customer and public uses of water, for muter testing and repair, and for periodic meter replacement; (F) measures to determine and control water loss (for example, periodic visual inspections along distribution lines; annual or monthly audit of the water system to determine illegal connections; abandoned services: etc.); {G} a program of continuing public education and 0nformation regarding water conservation; (H) a water rate structure which is nor promotional,' i.e., a rate structure which is cost- based and which does not encourage the excessive use of water, (I) a reservoir systems operations plan, if applicable, providing for the coordinated operation of reservoirs owned by the applicant within a common watershed or river basin in order to optimize available water supplies; and (I) a means of implementation and enforcement which shalt be evidenced by: (i) a copy of the ordinance,resolution, or tariff indicating official adoption of the water conservation plan by the water supplier; and (ii) a description of the authority by which the water supplier will implement and enforce the conservation plan; and (K) documentation of coordination with the regional water planning groups tor service area of the public water supplier in order to ensure consistency with the appmpdate approved regional water plans. (2) Additional content requirements. Water conservation plans for municipal uses by public drinking water suppliers serving a current population of 5.000 or more and/ora projected population of 5,000 or more within the next ten years subsequent to the ettective date of the plan must include the following elements: (A) a program of leak detection, repair and water loss accounting for the water transmission, delivery, and distribution system; (B) a requirement in every wholesale water supply contract entered Into or renewed after official adoption of the plan (by either ordinance, resolution, or tariff), and including any contract extension, that each successive wholesale customer develop and implement water conservation plan or water conservation measures using the applicable elements in this chapter. If the customer intends to resell the water, the contract between the initial supplier and customer nust provide that the contract or the resale of the water must have water conservation requirements so [bat ach successive customer in the resale of the water wilt required to implement water conservation measures in accordance with the provisions of this chapter. (3)Additional conservation strategies. Any combination of the following strategies shall he selected by the water supplier, in addition to the minimum requirements in paragraphs (1) and (2) of this subsection, if they are necessary to achieve the stated water conservation goals of the plan. The commission may require that any of the following strategies he implemented by the water supplier it the commission determines that the strategy is necessary to achieve the goals of the water conservation plan: (A conservation -oriented water rates and water rate structures such as uniform or increasing block rate schedules, and/or seasonal rates, but not flat rate or decreasing block rates; (B) adoption of ordinances, plumbing codes, and/or rules requiring water -conserving plumbing fixtures to he installed in new structures and existing structures undergoing substantial modification or addition; (G) a program for the replacement or retrofit of water -conserving plumbing fistures in existing structures; (D) reuse and/or recycling of wastewater and/orgraywater; (E) a program for pressure control and/or reduction In the distribution system and/or for ustomer connections; (F) a program and/or ordinancels) tor landscape water management (G) a method for monitoring the effectiveness and efficiency:A tho water conservation plan; and (H) any other water conservation practice, method, or echnique which the water supplier B 6 shows to be appropriate for achieving the stated goal or goals of the water conservation plan. (b) Awater conservation plan prepared in accordance with Al TAC §363.t5 (relating to Required Water Conservation Plan) of the Texas Water Development Board and substantially Ineeting the requirements of this section and other applicable commission roles may be submitted to meet application requirements In accordance with a memorandum of understanding between the commission and the Texas Water Development Board. (c) A public water supplier for municipal use shall review and update Its water conservation ptan, as appropriate, based on an assessment of previous live -year and ten-year targets and any other new or updated information.Thepublic water supplier for municipal use shalt review and update the next revision of Its water conservation plan every five years to coincide with the regional water planning group. Source Note: The provisions of thisS288.2 adopter to be effective May3. 1993, 18 TexReg2558; tended to be effective February21. 1999, 24 TexReg949; emended to be effective Apri127,, 2000, 25 TexReg3544; amended to be effective October 7,, 2004,29 Texfeg 9394; amended to be effective December G, 2012,37 TexReg 9515 9 TITLE 30 ENVIRONMENTAL QUALITY PART t TEXAS COMMISSION ON ENVIRONMENTAL QUALITY CHAPTER288 WATER CONSERVATION PLANS, DROUGHT CONTINGENCY PLANS, GUIDELINES AND REQUIREMENTS SUBCHAPTER A WATER CONSERVATION PLANS RULE 5288.5 Water Conservation Pans forWholesale Water Suppliers A water conservation Mentor a wholesale water supplier must provide information in response to each of the following paragraphs. lithe plan does not provide information for each requirement, the wholesale water supplier shall include in the plan an explanation of wily the requirement is not a pplicabte. (I) Minimum requirements. All water conservation ptanster wholesale water suppliers must Include the following elements: (A) a description of the wholesalers service area, including population and customer data, water use data, water supply system data, end wastewater data; (A) specific, quantified five-year and ten-year targets for water savings including, where appropriate, target goals for municipal use in gallons per capita per day for the wholesaler's service area, inaximuin acceptable water loss, and the basis for the development of these goals. The goals established by wholesale water suppliers under his subparagraph are not enforceable; (C) a description as towhich practice(s) and/or device(s) will utilized to measure end account for the amount of water diverted from the source(s) of supply; (D) a monitoring and record management program for determiningwater deliveries, sales, and losses; (E) a program of metering and leak detection and repair for the wholesaler's water storage, delivery, end distribution system; (F) a requirement in every water supply contract entered into or renewed after official adoption of the water conservation plan, and including any contract extension, that each successive wholesale customer develop and implement a water conservation plan or water rvation measures using the applicable elements of this chapter. If the customer intends to resell the water, then the contract between the initial supplier and customer must provide that the contract tor the resale of firewater must have water conservation requirements so that each successive customer in the resale of the water will be required to implement water conservation measures in accordance with applicable provisions of this chapter; (G)a reservoir systems operations plan, if applicable, providing for the coordinated operation of reservoirs owned by the applicant within a common watershed or river basin. The reservoir systems operations plans shall include optimization of water supplies as one ofthe significant goals of the plan; (H) a meanstor implementation and enforcement, which shall be evidenced by a copy of the ordinance, rule, resolution, or tariff, indicating official adoption of the water conservation plan by the water supplier; and a description of the authority by which the B-8 water supplier will implement and enforce the conservation pan; and (I) documentation of coordination with the regional water planning groups for the service a of the wholesale water supplier in order to ensure consistency with the appropriate approved regional water plans. 12) Addhlpnatconservation strategies. Any combination of the following strategies shall be selected bythewater wholesaler, in addition to the minimum requirements of paragraph (t) otihfs section, if they are necessary In order to achieve Inc staled water conservation goats of the plan. The commission may require by commission order that any of the following strategies be implemented by the water supptlerif Inc commission determines that Inc strategies are necessary in order for the conservation plan to be achieved: (A)conservation-oriented water rates and water rate structures such as uniform or increasing block rate schedules, and/or seasonal rates, but not flat rate or decreasing block rates; 18) a program to assist agricultural customers in the development of conservation pollution prevention and abatement plans; l0) a program tor reuse and/or recycling of wastewater and/or graywater; and ID) any other water conservation practice, method. or technique which the wholesaler shows to be appropriate for achieving the stated goal or goats of the water conservation plan. (3)Review and update requirements. The wholesale water supplier shall review and update its water conservation plan, as appropriate, based on an assessment of previous five-year and ten- year targets and any other new or updated information. Awholesale water supplier shall review and update the next revision of its water conservation plan every five years to coincide with the regionalwater planning group. Source Note: The provisions of this 5288.5 adopted to be effective Mey3. 1993, 18 TexReg2558; mended to be effective Februery21, 1999, 24 TexReg949; amended to be effective Apdi27, 2000, 25 TexReg3544; amended to be effective October 7,, 2004, 29 TexReg9384; amended to be effective December& 20t$ 37 Texgeg9515 8-9 Appendix C - City of Corpus Christi Utility Profile Based on TCEQ Format f' Texas Commission on Environmental Quality Water Availability Division MC-160, P.O. Box 13087 Austin, Texas 78711-3087 Telephone (512) 239-4600, FAX (512) 239-2214 Utility Profile and Water Conservation Plan Requirements for Municipal Water Use by Retail Public Water Suppliers This form is provided to assist retail public water suppliers in water conservation plan assistance in completing This form or In developing your plan, please contact the Conservation staff of the Resouresc Protection Team in the Water Availability Division at (512) 23944600, Water users can find best management practices (RMRs) at the Texas Water Development Board's websife hat:/As.w .l wdb.texas.yovico;;xervation/BMPs/m,te x.asti. The practices are broken out into sectors such as Agriculture, Commercial mtd Institutional, Industrial, Municipal and Wholesale. BMPs are voluntary measures that water users use to develop the required components of Title 30, lexas Administrative Code, Chapter 288. BMPs can also he implemented in addition to the rule requirements to achieve water conservation goals. Contact information Name of Water Supplier: City of Corpus Christi Address: 2726 Holly ltd, Corpus Christi, TX 78415 Telephone Number: (361) 826-1826 Fax: ( ) Water Right No.(s): 1947..2345, 2464, 3214. 5434, 5655, 5736; 13675, 13676, 14124 Regional Water Planning Group: Regional Waterl'laiming Group N Water Conservation Coordinator (or person responsible for implementing conservation program): Esteban, Ramos Phone: (361) 826-3294 Form Completed by: Esteban Ramos Title: Signature: Assistant Director of Water supply rian:tgunenl Date: / / A water conservation pian for municipal use by retail public water suppliers must include the following requirements (as detailed in 30 TAC Section 288.2). If the plan dales not provide information for each requirement, you must include in the plan an explanation of why the requirement is not applicable. C-2 Utility Profile POPULATION AND CUSTOMER DATA A. Population and Service Area Data 1. Al i arh a copy of your service -area map and, if applicable, a copy of your Certificate of Convenience and Necessity (CCN). Corpus grist- CCN 10554 IJxnwe, 6.OI3I PRI — Wale: OM I" Keay Wes WOW CON Scats Amu 2. Service area size (in square miles): 22.2 (Please attach a copy of service -area map) 3. CStrrent population of service area: 317,742 4. Current population served for: a. Water 317,742 b. Wastewater 470,00 aWyaa I a s ry an 711 C-3 5. Populatitm serval for previous five years; Year Population 2024 .317.742 2023 314,204 2022: 317,863. 2021 327,673 2020 326,000 6. Projected population for service area in I.he following decades: Year Population 2030 313,373 2040 318,911 2050 319,214 2n6o 317,292 2070 315,382 7. list source or method for the calculation of current and projected population site. Source: Draft 2026 Coastal Bend Regional Water Plan 1:October 2025 Population and Water Demand Projections [31 TAC §357311 2026 Regional Water Plans ( Texas Water Development Board 11. CustomerData Senate Bill 181 requires that uniform consistent methodologies for calculating water use and conservation be developed and available to retail water providers and curtain other water use sect ors as a guide for preparation of water use reports, water conservation plans. and reports on water conservation efforts. A water system must -provide the most detailed level of customer and water use data available to it. however. any new billing system purchased must he capable of renortina data for each of the sectors listed below. More guidance eau be folmdat: httn://WWWJwdb.texas. envlcoflservattun/due/St3181(and an r.pdf 1. Quantified 5-year and 10•year goals for water savings: C-4 Hisrotfe 5- Syear goal 10-yeargoal year Average 'Baseline for year 2025 for year 2035 Total GPCD 213 200 201 191 Resident iul CPCD 64 63 60 57 Water Loss GPCD 16 17 13 11 Water Loss Percentage 7.5% 8.5% 7% t% Notes: Jowl CPCt)-ITmW Gallons in $sternla Permanent IopWllbN-er65 esid nisi CPO) -(GNIma Usch lo'ltesiental User Red mtal Population) i 365 Water I on. CPen- (total Water Loss - Permanent Population) e 1.65 WVate' Loss percentage = IIor 1 Wader . Loral Gallons In simians 100, or (Water Lob Mkt) s Tut al G'VCI))x Il 2. Luri'eni number ofaclive connections. Check whether mull -family service is counted as ® Residential or ❑ Commercial? Sheared Water Users Metered Non -Metered Totals Residential 91.470 0 91,470 Single -Family 89,686 0 89 686 Multi-Pamily 1,184 0 1,784 Commercial 6,887 0 6,887 Indus' rial/Mining 20 11 2(1 institutional 1028 0 1 028 Aeriailture 0 0 0 Other/Wholesale 11 0 3. list the mmher of new cot' prc year for most reeen Year 2022 2023 2(124 Treated Water Users 707 65 1.11c Residential 668 56 1 417 single-Panuly 669 871 651 Multi -Family -1 -815 766 _ Co on er'eiul 32 0 -33 Indns'rial/Mining 6 0 0 Institutional 13 9 33 Agriculture 0 0 0 Other/wholesale 0 0 0 tithe base/ads listed were calculated as the 2015 to 2019 average 4. List of annual water are Grr the Ilvc highest volume Customer's. ustomer Valero (West Plant) Flint Hills Ree m'u_s Ilse (1,000 idol/year) 'I Yeared or Raw Water 1,097„1489,000.00 Treated ra6as00,0D1.00 Treated LvondellBasell Treated Citgo 1,138,882,croo.00 'Treated Valero (Earl [9mrU yn6,zgl,non.o0 die tied 11. WATER USE DATA FOR .SERVICE AREA A. Water Accounting Dula I. list the amnont 0f water usr.Cur the previous five years (1111,000 gal bus). Indicate whether this is®Myth/ ed er ® treated water. Year. 2020 2021 2022 2023 2024 Month Jalmary February March April May June hay Atguel seplrmber On ober November December 2,512,24400 2343A91 00 2,768,141.00 2425,019 00 2806,60200 2,7/030200 2.802,54400 3,165,36400 2,591,214.00 4427088.00 3110,22600 3,6-15'927,00 27117,77139 3,427,813 3233,982.87 3499,966.60 2 561 087 18 2828,060.83 2,750,308.29 2791,19467 2900, 19773 3,424,012.31 3, 435,121.24 2ABH,11 91 3,461 I17.83 2,908,320.18 _ 2123,498.92 3,658,05.03 3,487,909.10 3,600,79983 3,012,492.50 II,955, A:11.19 3,014,448.06 3330,950.26 2,921,680.07 4;113,49245 4,182,949,20 3,687,20366 3,270,892.34 9,N14,U43A6 452t1,530. J2 3.793.84 3.42 3,107,,64099 3,152,606313 4,036,84495 3,508,373.40 2,836.838.AI 3,314,230352 3,762,997 IS 3,49],441.G3 2,851.84] 93 2,090,55171 3,326,e1286 3,230,284.80 3062,67353 3 039 7(12 60 'I 619,227 W 3,359, 84906 TOWS 34 698 962.00 35 001 611.02 40 791612.54 43,261,282.16 40 614 831.04 2. Describe how the above figures were. delmin/led (e.g, from a master meter located at 1hr point of a diversion from the source or located al a palm where raw water enters the treatment planl, or from water sales). Master ureters at point of dmern011 c-6 3. Amount of water 1111,000 gallons) delivered/sold asxeco'ded by the lPion ing account types for !hep(w five yi ars. Year 020 2021 2022 2023 2024 Account lama Residential 7,439,1)70 8,017,726 7,526,000 7,693,000 6,910,269 woupwily 6,013,510 5,723,642 5,971,000 6,026,000 5,279,397 021110212 1 425 540 2 294 084 1 555 000 1 667 000 1630.872 Commercial 3140,037 3[273,851 3364(100 3829000 3,292,682 lndpsu'ial/Mudmt 11,192,854 12,096,031 _11,560,000 12,443,000 10,7 1318 Institutional 717,169 677,565 1108410(1 931,000 884,354 A8riculion. 0 (1 11 0 0 Odle/Wholesale 14,471,523 10,186,505 27,739,111 28,405,249 28,768892 4. list the previous records for water loss for the past five years (the difference between wal rr diverted or treated and water delivered or sole). Year Amour( (gallons) Percent% 2020 8619469%I A2 2021 4389.995,797 5.4 2022 1,227,027,086 6.9 2023 4980,5o3,o92 7.3 2624 24470,798.492 9.8 R. Naiades) Wet Demuods 1. if applicable! Mach nr rile projected water supply demands from ilia. uppliroblc Regional Water planting Group for the next ten year's using information such as populadon trends, any additional water supply requirements from such growth. C- Panel 2025 Coastal Bend Regional Wafer Mani October 202$ Popubbon and WeYrDlvnacdP2tttorts A3I 7AC 17357.3Q fcate r•-.t ti,yN, %te,h. Ciagt-0 (Inuit CilylCtwnty Hlstorlcsl Projections' 2000 2010 2020 2030 2040 2050 2060 2070 2080 County -Other 684 765 1,273 039 614 605 610 632 643 Live Oak County 1,990 1.649 2,437 1,631 1,575 1,538 1,628 1,618 1,508 three Rivers -- -- •• 12 12 11 10 9 0 Counly•Other 135 156 183 61 56 54 50 40 42 McMullan County 135 156 183 73 88 65 GO 55 61 Bishop 450 4t7 384 550 559 558 555 551 547 Crapes CMs11 55.629 40.514 31,565 59,084 59.885 59.942 59,581 59.223 58,868 Driscoll 97 96 75 80 61 81 81 80 80 Nuecra MC 085 534 980 997 999 097 094 092 River Acres WSC' 314 442 344 315 319 320 318 316 313 CounlyOthet 5,214 3.347 2,608 2,00/ 2.639 2,1141 2,625 2,609 2,503 Corpus Chisu Naval Air Station _ 675 526 2.078 2.111 2,112 2. 005 2,096 2,080 Nueces County WCID 3' — 4.460 3.475 3,452 3.504 3.507 3.485 3,463 3.441 Nueces County WCID 4 •• 2.648 2.063 1.370 1.391 1,392 1.384 1.374 1.365 Vrdel MC — 246 192 228 229 230 228 227 225 Nuoces Counly 61,725 63,681 41,746 70,760 71,714, 71,782 71,359 70,933 70,508 Aransas Pa35(P) 1,210 724 1,132 1.185 1,160 1,183 1.191 1,199 1.20/ Gregory 249 176 275 270 260 257 262 266 270 Ingleside 873 582 910 988 1,008 1,022 1,021 1,020 1,019 Mathis 671 534 835 469 419 400 417 434 451 Odem 319 276 431 432 423 421 426 431 437 Portland 1.970 1.503 2.349 3.555 3.837 4,155 4,500 4.873 5,277 Rlncon W3C -- 351 549 378 396 406 402 399 396 Sinlon 1,036 825 1.289 1,073 1,051 1,045 1.058 1.071 1.084 Tall 559 317 495 337 323 310 324 330 336 CounlyOther 1,980 4.513 7,053 1,664 1.785 1,683 1.310 915 493 San Patriclo County 8,873 9,802 16,318 10,349 10,882 10,889 10,911 10,938 10,970 Total tor Region 98,573 90,620 83,775 107,817 109,080 109,273 108,888 108,641 108,269 Note. (PI Panda ProjaWns horn Texas Veer Urrefopment Ooanf 'These Gatos rely on suspits &Weed by Memos COurdy WCID t Nueces Coady WOO 3 divans vase horn tee loot Fleeces River and ccnvels supptes through an vaned canal. Bylining the cants, the amount d water necessary lot diversion by Nueces Candy WOO 3 tomeel customer needs ewtdd Co tedo ed C - 8 nl. WATER. SUPPLY system DATA A. Water Supply Sources 1. List all emxeltt water Supply sources and the amounts authorized (in acre foci) will (0 i . Water lime Source Surface Water bluntple Sources SIT Below Gromidwater Water light Permit (14124) Other 0 Amouni Authorized 812.748 17 920 WR Number WR Type Source Acre Feet 1947 Water Supply Contract (WSC) tavaca Basin 41,840 2345 Water Supply Contact (WSC) Lavaca Basin 4,500 2464 Certificate of Adjudication (AM) Nueces Basin 304,898 3214 Certificate of Adjudication (AIM Nueces Basin 139,000 5434 Certificate of Adjudication (ADJ) Colorado Basin 35,000 5655 Water Right Permit) WRPERM) Nueces-Rio Grande Basin 67.2 5736 Water Right Permit) WRPERM) Nueces Basin 8,000 13675 Water Right Permit (WRPERM) San Antonio-Nueces Rasin 186,295 13676 Water Right Permit WRPERM) Nueces-Rio Grande Basin 93,148 14124 Water Right Permit) WRPERM) Nueces Basin(Groundwater) 17,920 C - 9 B.. Trealmenl and Distribution System Of providing treated eater) I. Design daily capacity of systmn (MGD): 101.5 2. Storage capacity (MGD): a. Eleva led 40 MGD b. Ground 27.5 MGD 3. If surface water do you re( ycle filter backmtsh to the head of the plan M Yes ❑No If yes. approximate mmonm(MGD):2-5% of treated water flow. Current effective output Is 159 AIGD, making Hater backwash between 3.2 and 8 MGD. The O.N. Stevens Water Treatment Plan uses a wash -water recycle pond (Lagoon-7) where fitter backwash water is sea for solids to settle. After settling, the decanted backwash water is paned back to the head of the plant using the eusting wash -water return pump station. It is estimated that spun filter backwash volumes are 2-5%of treated nabs Ilow. WASTEWATER SYSTEM DATA A. Wastewater System Data Of applicable) 1. Design capacity of wastewater treatment plant(s)VICAR 42.700,000 2. Treated effluent ie used for 0 nn site irrigation, M off- sire triigmdpn, for ❑ plan tw.lsh- dosm.and/or tor chlorination/dechbinn1Gon. If Yes, approximate amount an gallons per month). 488,239 t. Briefly describe the wastewater system(s)ofthe area servlreti by the water tit Pity. Describe bow neared wastewater is disposed. Where applicable, Identify treatment plant(s) with the ICEQ name and number, the operator, owner, and the receiving stream if wastewater is discharged a. Overview of the Corpus Christi Wastewater System corpus Christi Water (CCW) operates an extensive municipal collects, transports, mat s, and either discharges or businesses, and industrial users throughout he city. Ihesyste roughly 324,000 residents across about 137 sdnare miles of In b. Key components include: • Sanitary sewer collet mains interwoven wit uphill and toward irea no appro. nem plant. ter that in homes, serves a populadon of lservice area. ,200 runes of h C-10 • Six wastewater treatment plants (W WTPS or WRPs) stralegi throngs the city to treat flows before discharge or reuse. • Pretreatment and inspection programs to regulate Industrial dischargers and food establishments to protect plant processes. • Reclaimed water distribution services that allow some neaten effluent to be rcused in initiation and industrial uses. Together. the plants typically treat an average of -28 million gallons of was t wa ter per day and have a combined capacity of around 42-43 million gallons per day. Wastewater Collection System Wastewater from toilets, sinks, showery and commercial / industrial processes enters Ow sewer network via local sewer lines. TThe collection system moves nmvs by gravity where possible, and by lift stations where needed to overcome terrain differences. Components: • Gravity Mains: Over 1,200 miles of underground sewer pipe. • lift Stations: Around 100 pump/lift stations that move wastewater to higher elevations for continued transport. • Maintenance: Repair crews respond to thousands of servicecalls manually, including cleaning sewer main lines and maintaining manholes. Wastewater Treatment Plants (W WTPs 5 WRPs) Corpus Christi operates six treatment fai1111ies, earls serving di fTetent areas of the dty's ea sewer network. • Oso Water Reclamation Plant (WRP) — tint hinged facility, handling roughly half of Ilan city's wastewater. Recent opglades are underway to modernize treatment basins and expand capacity. the Oso Water Reclamation Plant (DTP) is lot :eked to Carpus Christi, Texas, and is parr of the Texas Commission on Environmental Quality CTCEQ). The plant is r'urrcnity permitted under T1'DES Perrin N0. WQO(110401004, which allows for the d!scharge of treated ivasr ewal er al n volume net to exceed 24 million gallons per day directly to Blind ()so Bay. The plant is undergoing improvements to enhance its treatment Papo0l y and infraslrutl ter', which is part or the city's capital imprnvemrnl plan. • Allison Wastewater Treatment Plant The Allison Wastewater Treatment Plant (Allison W V P) is a municipal wastewater treatment facility operated by the City of Corpus Christi in the northwest potion of the city, located at 4101 Allison Driven Nueces County, Texas. It serves a portion of city's wastewater system (part of the Allison Se wershed) and is one of several treatment plants managed by the dly's wastewater division. ilie plan is currently perr it d under Wastewater Permit WQ0010401006 and has b capacity of million gallons per dal' treated effluent is discharged into the Nueces River tidal segment and eventually flows toward Nueces Bay. This discharge point is part of a TPDLS (Texas Pollutant Discharge Elimination System) permit that governs effluent limits to protect water quality. C-11 • New Broadway Wastewater Treatment Plan — The New Broadway Wastewater Treatment Plant s a mmtidpal wastewater treatment faculty operand by the City of Corpus Christi. As one of the city's treatment plains, New Broadway WRrP handles astewater from portions of the city'x anlledion network — particularly central w sewer and nearby urban areas around Broadas Street. The design erelwcurrently permitted n under surf day. Treated entWQ0010401005dandhasa the Cnparchdewofr Harbor gallons t f the Co. us ChritlShip Isnnel system land theCorpusCm1ad hoot Harbin o➢ Mexico. o.e This discharge Ship t is pary of aand ultES (Texas i !mthe arge of Mnaiio System) d)spevge point a ➢s e lu ]mi s (Tends t water q a ityhsge. Elimination s'yomN permit that governs effluent limits m protect wider quality. • Greenwood Wastewater Treatment Plant— The Criienwood WISTP'x primary clew to collet and treat sewage (wastewater) from homes businesses, tmd other sources in its service area so that it meets state and federal standards before. discharge. The federalreenwood WWTP serr1es what the dty calls the Greenwood Service Basin, which includes approximately 18II❑ stations and divers an area from roughly Minter (toad (north) to Chapman Ranch Road (south) —around 38 square mitre of the ail y's sewer collection service area. The plant is anTently pernntted under Wastewater Permit W00010401008 and has u permit led average flow capacity of about 8 nnlhon gallons per day (MGD) and a peak flow capacity near 24 MGD. Under its Texas Pollutant Discharge Elimination System (TRUES) permit, the Greenwood treated diluent is released into a local tributary known locally us Lu VI ha Creek. That creek flows Into Est Creek,swine r 35C eventually timorous [o Oso Bay and then the larger Bays and Eemmiea around Corium Christi. • Iagtna Madre WWTP — The It Madre WWTP serves portions of the eastern/southeastern area of Corpus Christi near the bay front and coastal neighborhoods in file city ihnits It is one of several waste water piums operated by Corpus (Swish Water supporting are muniripaiity's wastewater infrastructure. The plant is inrtentlypernnued under Wastewater Permit W (10010401008 has it permit tad ferage flow capacity of about 3 million gallons per day (MCD). The treated effluent rom ibe Laguna Madre WW11' is authorized to discharge into Comas Christi Bay— port of the Texas Bays and Estuaries system (Water duality Segment No. 24814 C - 12 • Whitecap Wastewater Treatment Mani. — Whitecap Wastewater ➢'eatment Plan (Whitecap MOW) is located at 13409 Whitecap Boulevard, near the wem end of Whitecap Boulevard on Padre Island, Carpus Christi, Notices County, Texas, 78418. The plant is V rently permitted under Wastewater PermWQO010401000 has a permitted average flow capacity of 1.2 to 2 nulhon gallons per day (MGD). The Whitecap Wastewater 'treatment Plant On Corpus Christi, Texas) discharges its treated effluent into the lagona Madre, a shallow coastal lagoon on ibe Gulf Coast of Texas. The plant's discharge permit authorizes direct discharge or treated wastewater to Laguna Madre. In. Segment No. 2491 of the Bays and Estuaries. Waslewaler Data for Service Area (if applicable) Percent of water service area served by wastewmel rymtem: l0(YM 2. Monthly volume treated for previous five years On 1,000 gallons): Year Month 2020 2021 2022 2023 2024 January 772, 501303 February 682157A8 March 351,77432 April 789,26495 May 032,11315 June 8654456 July 8) 5,61024 August 776,747.07 September 885,14862 October 81]68]A4 November 766,303.94 December 771,63940 Totals 9 730,009.00 87278322 811.570.10 77050520 71635/38 962.338,(0 804,84451 _ 891,71527 829,17434 105344479 979.560,87 977,896.34 909311.05 921,48030 850,851.78 8]],572.51 810,02149 1000 27105 930,11050 923,827.59 859,03494 805,(7381 8u5,052.10 828,32233 879,531.75 731,44432 776,60494 913,315.67 969,77964 846,28995 999, %80.72 028,08082 898,01018 1,061,59021 985, 457,62 871,51871 923,605 37 832,867.64 884.35807 949,31534 1,008,005.34 876,76642 910,970,80 821,66099 872,46814 875,191.26 813309.25 83060]0 881,958.41 10,993.000D0 10,222,000,00 10,433,000.00 11,078,000.00 C-13 Water Conservation Plan In aadwnn to the utilitypnAle, please attach the following as requiredby Title 30, Texas Administrative Code, §288.2. Note: If the water conservation plan noes not proilde information for l'avh requirement, an explanation must be included as to why the remu¢enent is nor applicable. A. Record Management System The water conservation plan must include a record management system which allows for the classification of water sales and uses in to the most detailed level of water use data currently available to it, including if possible, the following sectors: residential (single and multi -family), commercial. Specific, Quaint! fled 5& 103@nr Targets The rater conservation plan must tndude sped fir, quantified five year and ten year targets for water savings to include goals for water lass programs and Foals for mtmirlpiO use in gallons per capita per clay. Noe that the goals established by a public water supplier under this subparagraph are not enforceable. There goals mnx1 be updated during the Rayvmr review and submittal C Measuring and Accounting for Diverrimrr The water conservation plan must Include a statement about the water suppliers metering aount),within an accuracy of pima or norms S.u%in order to measure and account for ore amount of water diverted titan the source of supply. D. ilnWendt Metering The water conservation plan must i note: lr and and public uses of water, for meter term r Measurer ro neternime Lind Control crater loss and eying of both castouer The water conservation plan must include measures to determine and e coital water loss (for maple periodic shawl inspections along distributionlinen, annual o monthly audit of the example, system to determine illegal connections; abandoned services: etc.). F. cum inadng Public Education &niformmmn The macs r talon plan must include a description of the program of comtimang pubic educalimt and Information regarding water conservation by the miner supplier. C Non -Promotional Wafer Rote SVneUve The water supplier eaten have a water tale structure structure which is cost -based and which does not enrnnrugo the structure must be listed in the water conservation plan. H. Reservof Systems Operations Plan C - 14 The wva er conservation plan must include a reservoir .steins operations plan if applicable, providing for the rnordimded operation of reservoirs owned by the applicant within a common watershed or river basin in order to optimize available water supplies. L Enforcement Procedure and Plan Adoption The water conservation plan must include a means far implementation and en forcenent, which shall be evidenced by a copy of the ordinance, tale, resolution, or tariff, indicating official adoption of the water conservation plan by the water supplier; and a description of the authority by which the water supplier will implement and enforce the conservation plan. I. Coordination with the Regional lvarerPlanning croup(s) The water conservation plan must include documentation of coordination uvlilt the regional water planning groups for the service area of the public water supplier In order to ensue consistency with the appropriate approved regional water plans. If Plan Review and Update Apublic water supplier for muucipal use shall review and update its water conservation Nan, as appropriate, based on an assessment of previous five-year and ten-year targets and any other r updated information. The public ter supplier hit municipal use shall review and update. thewater next revision of its water conservation plan not later than May 1, 2009, and every five years after that dale to coincide with the regional water planning group. The revised plan must also include an implementation report. ADDITIONAL. REQUIREMENTS FOR IMAGE SUPPLIERS Required of suppliers serving population of 5,000 or more or a projected population of 5,000 or more within the next tan years: Leak Detection and Repair The plan must include a description of the program of leak detection, rep accounting for the water transmssLon, delivery, and distribution unaununi d for tars of water. Control Requirements A requirement in every wholesale water supply contract entered into or renewed after official adoption of the plan My either ordinance, resolution, or tariff), and including any Contract extension, that each successive wholesale customer develop and Implement u water ,,nservati/in plan or water conservation measures 'Ishii; the applicable elements in Pus chapter. If the pustomer 1nie d5resell i,e water, the contract between the initial supplier and customer must rovide that the contract for the resale of the water must have hater conservation requirements a that each successive customer in the resale of the water %will be required to implement water conservation measures in accordance with the provisions of this chapter. VI. ADDITIONAL CONSERVATION STRATEGIES C-15 Any combination of the following strategies shall he stktRd by the water supplier, in addition to the minimum requirements of 30 TAC §zfta z(1), if they are cry in order to achirve me stated water conservation goals of the plan. The commission may require by conmusalmh order that any of the following strategies be implemented by the malls Supplier If the c determines that thestrategiesre necessary 1 order for the conservation plc tohe'h' veran l 1. Conservation -oriented ted water rates and water rate structures such as uniform or increasing block rate schedules, and/or seasonal rates, but not nth rate or decreasing block rates, 2. Adoption of ordinances, plumbing codes, and/or rules requiring water conserving plmnbing fixtures to be installed in new structures and existing structures undergoing substantial modification or addition; 3. A program for the replacement or retrofit of water -conserving plmubing fixtures in eUsting .structures; 4. A program for reuse and/or recycling of wastewater and/or gmYwatrr, 5. A program for pressure control and/or reduction in the distribution system and/or for customer corrections; e. A program and/orm'muance(s) for landscape water management; 7. A met hod for monitoring the effectiveness and efficiency) of the water conservation plan; and H. Any other water alai aamnlon practice, nwthod, or technique which the water supplier shows to be appropriate for achieving the stated goal or goals of the water conservaton plan. VII. WATER CONSERVATION PLANS SUBMr(IED WITH A WATER RIGHT APPLICATION FUR NEW OR ADDITIONAL STATE %%ATER Water Conservation Plans submitted MU a water right application for New or Additional State water must include data and information ,mum: 1. support the apphcanrs proposed use of hater with consideration of the water conservation goals of the water conservation plan, 2. °milk°es (miser eLitton as an an ernnIpe to the pNpntad nppropdatahq and 3. valuales an) other feasible alternative to new,ruter development including, but not linked to, waste pre cation, re( yeling Intl rrns., water trimsfer and markettnµ, ]tginnall'rallon, and opttmmn wares management practices and procedures. Additionally, it shall be the burden of proof of the applicant to demonstrate that no feasible alternative to the proposal appropriation exists and that the requested amount fir appropriation is necessary and reasonable for the proposed use. C-1s Texas Commission on Environmental Quality Water Availability Division MC-160, P.O. Box 13087 Austin, Texas 78711-3087 Telephone (512) 239-4600, FAX (512) 239-2214 Utility Profile and Water Conservation Plan Requirements for Wholesale Public Water Suppliers 11iis formic; provided to assist wholesalepublic water suppliers in water conservationpian development. If you need assistance in completing this form or in developing your plan, please contact the Conservation staff of the Resource Protection Team in the Water Availability Division at (512) 239-4600. Water users can find best management practices BMPsl at the Texas Water Development website httn://www.twdb.texas-yov/conscnvahlon/BhMPs%utdex.asn. The practices are broken out into sectors such as Ayrlculture, Contmerctal and Institutional, Industrial, Municipal and Wholesale. BMPs are voluntary measures that water users use to develop the required components of Title 30, Texas Administrative Code, Chapter 288. RPM can also be implemented in addition to the ntle regttirenfents to achieve water conservation goals. Contact Information Name: City of Corpus ch dsti Address:. 2726 Holly Rd, Corpus Christi, TX 78415 Telephone Number: (361.) 826-1826 Fax: ( ) Water Right No.(s): 1947, 2345, 2464, 3214, 5434, 5655, 5736, 13675. 13676,14124 Regional Water Planning Group: Regional Water Planning Group N Person responsible for implementing conservation program: EstebanRamos Phone: (361) 826-3294 Form Completed By: Esteban Ramos Title: Assistant Director of Water Supply Management Signature: Date: / / A water conservation plan for wholesale public water suppliers must include the following requirements (as detailed in 30 TAC Section 288.5). If the plan does not provide information for each requirement, you must include in the plan an explanation of why the requirement Is not applicable. C-17 Utility Profile L WHOLESALE SERVICE AREA POPULATION AND CUSTOMER DATA A. Population and Service Area Data: MICE, TX CCN 10052 (Please attach a copy of service -area map) Service area size (in square miles): 12.6 ArcGIS Web Map 18712026. 5:15:16 PM Water CCN Servir a Areas 0 Sewer CCN Service Areas 1:60.116 n es 1 201 0 035 13 )kr C-18 B. Population and Service Area Data: BEEVILLE, TX CCN 10550 Service area size (In Square miles): 6.38 ArcGIS Web Map 111712025; 5.37,06 PM ICI Water CCN Service Areas Sewer CCN Service/yeas io32,510 O 08 05 1m t ie e r , 1 O Oil OM ISMI Lan.. £a la.las i.... In Mita WA l MY+Ye AA M. , IY M OA W 0.rv1•0 C-19' C. Aopulation and Service .Area Data: UfATFlrs, TX CCN 11045 Service areasize f nsquare miles); 3.32 ArcGIS Web Map Ls►ashore Gardens -Hidden Acres 1lidden Actos it 314 lakeside t 4 11045 Ma -\ 't0419 Vahlsing 111 /12020. 4 54 os PM IC water CCN Service Areas Sewer CCN Service Areas 160.685 0 01S 00 111I4 1 I % % •, • a OM IS 1 • m 1.a.. Cho 1.. t.. Lew r,0 1a& . A.w.0111. gee sass vs Yt. gar*. C-20 D. Population and Service Area Data: NUL•'CES COUNTY 1VC1D 4 CCN 10571 ArcGIS Web Map 13290 'h 10565 Q 12018 Ir172026. 628.11 PM Waler CCN Facility Lines Water CCN Service Areas I —I Sewer CCN Service Areas 1A85.A80 0 375 75 ( e i. - ti t e 0 5 10 TO 1,11 151n 1.r.r. 1w 1^M lw••. 1✓1 M'U V CA ' 'M.8.A1. +.• him . .111+. a*w. 4,....q C-21 E. Population and Service Area Data: SAN PATRICIO MUNICIPAL WATER D1STIUCT SAN PATItLCIO MWD CCN 10572 CITY OF ARANSAS PASS CCN 11181 CITY OF GREGORY CCN 13275 CITY or INGLESIDE CCN 10562 CITY OF INGI.P.SR)E BY TIW. RAY CCN 20837 CITY OF ODEM CCN 10555 NUECES COUNTY 4 CCN 10571 CITY OF PORTKANT) CCN 10541 RINCON WATER SUPPLY CCN 11440 CITY OF ROKPORT CCN 10565 SEARORD WSC CCN 12584 ArcGIS Web Map /10570 i 12912 12504 12996 • 12554 C,13311 13028 1w723 4 1326 (/c 10650_ 13049 70209 10573 20.45 r1 10538 10563 10540 lots 7 $ l ^�132 1981� 17064 106627 '»n 10571 0556 1o9920, 5i_]25t 12167. 111600� 11889 10924 otts 13165 t IC152020. 101543M1 — Wolof CCN Foc44y lines © wife, CCN Serwce Arens — Sawa CCN Facility Lines r— Sewer CCN Sernce Aieas I970001 e u• tit I ti s U / 11 b.•. C-22 F. Population and Service Area Data: SOUTH TEXAS WATER AUTHORITY an OF KINCSVTTT E CCN 12167 (includes Ricardo WSC) NUTtCES WSC 10544 (h)cludts City of Agua Duke) NUECES WSC 10561 (Includes City of llishop) NUECPS WSC 111148 (Includes City of Driscoll) ArcGIS Web Map 12167 1 1.1600 11192028, 11:19AIAM 0 Water CCN Service Areas Sewer CCN SeniceAreas 0206 1/1440 10555 1.405.400 0 iY r. 15m - • . l 1 e 1 • 1 0 5 10 xim .n i . Tab. 4a IUD rlM U A CyrJanatit =tW\y*Y+VIIT. On% C-23 G. Population and Service Area Data: VIOLET WATER .SUPPLY CORPORA71ON CCN 10920 10561 ;U203 13264 1118.2028. 11:4328AM 0 Water CCN Service Areas 1-1 Sower CCN Service Areas ArcGIS Web Map L242740 o in 75 Jn 0 215 55 .a1 .. 1ST, Gi4r C-24 I. Goren➢opulation of ¢ VOA er area: 153,933 2. (harem popular ion served for: u. Water 153,933 b. Wastewater 0 3. Population nerved for previous five Year PoavIaHan 2020 156409 2021 157645 2022 150134 2023 152,143 2024 153.933 4- Projected population for service area in the following decades: Year Population 2030 142,699 2040 150,313 2050 150,963 2060 149,561 2071/ 148,663 5. list anent: or method for the calculation of current arar projected population size. Population data for the wholesale service area was taken from available census data and from data provided in Texas Water Development Board Water Use Surveys provided by the City of Corpus Christi. H. Customer Data list (or attach) the names of all wholesale customers, amount of annual contract, and amount of annual use for each customer for the previous year: Wholesale Cavbmer City of Alice, TX Bt Contracted Amount (Acre-feeO 7,500 10W. Above Pfevlune Yeats name or the Three Year High Average, whichever is Greater Previous Year Amount of Water Delivered (acre-feet) 3 109 2396 C!ry of Mathis Nueces County VYCID 4 San Patnei0 MWD As NeWcd 442 Acre Feet Skmmmn per Ytsi Maximum of 81,560 Aae Bon per Year 693 2212 45,951 C-25 South Texas Water 19,000 Acre Feet per Year 1 731 AuthoriIY VioletWSC As Needed 192 II. WATER USE DATA FOR SERVICE Alt A WalerDebvery 1. Indicate if the water provided under wholesale contr the annual innmis for the previous five year's On ac reated or raw water and Year ('rested Water Raw Water 2020 3971 2021 1,950 34,547 2022 4,172 45,423 2023 4,113 44304 2024 4 135 52099 Totals 21:10 211822 Water Accounting Data 2. Total amount of wider diverted at the point of diversion(s) for the previous (I years (in acre-feet) for alt water area: Year 2020 2021 2022 2023 2024 Month January 3 063 2794 3,500 3860 4,444 February 2 821 2,852 'i 443 3 361 3 987 March 3,169 3,118 4,229 3,944 4,146 April _ 3,045 _ 2,7(18 4,080 3,007 4 817 May 3,215 3,079 3,010 4,150 4,934 June 3,506 3077 5,187 4,394 4,694 July 3 706 3 216 4,003 4,G18 5,129 August 3,946 3,786 4,861 5,009 5,211 Seplemhrr 3,353 3,520 3934 1705 4,822 October 3,307 2 970 3,916 1,108 5,137 November 3,154 3 210 3 769 3 161 4,273 December 3,134 4,826 3 833 3,978 4,638 C - 26 Totals 39,419 39.497 49 595 48,417 56,234 3. Wholesale popola0on served and total mnoury of water diverted for municipal use for the previous five years (in acre-feet): Total Annual Water Diverted Year Total Population Served for Municipal Use 2020 156,409 39,419 2021 I$],645 39,497 2022 150.134 49,595 2023 152,143 48,417 2024 153 933 562134 C. Projected Water Demands R applicable. project and attach water supply demands for the next ten years using information such as population trends, historical water use, and economic growth In the service aria over the next ten years and any additional water supply requirements from such growth. III. WATER SUPPLY SYSTEM DATA A. Projected Wafer Demands . List all current water supply sources and each. Water Type Source aunts unthor'i zed do acre feet) loth Surface % rater Multiple Serums (See Below) Groundwater Water lught Permit 114124) Dlher 812 748 17 920 WR Number WR Type Source Acre Feet 1947 Mrtcr Supply Comlaet(WSC) LowtaBmin 41 840 21i45 Waiter Supply Contract WSC) Lava© Baeln 4,500 2464 Certificate of Adjudication (ADJ) Nieces Basin 304898 B214 Certificate of Adjudication (AD➢ N ces Basin m 139,000 5434 T Inane of Adl dration (ADJ) Crdo A"in 3 35000 5655 Water Right Pennil (WRPERM) Nuio Grand Plasm 672 5736 Water Right Permit (WRPERM) 8 P.'n 8000 C-27 13673 Water Right tP 'mit (1VRPERM) San AM onio-Nueces Basin 186,295 13676 %leder ARhtPrmil (WRPLRM) Nueces—RioNueces-Rio Grande Basin 93,1d5 14124 Water Right Prmu (WRPEPM1) Nueces Basnt(Grotutdwatt) 17,92(I B. Trento If provk ng v'rated motet) I. Design daily capacity of system(MMD): 161.5 MGD 2. Storage capacity (MGD)'. a. Elevated 10 MGD b. Ground 27.5 MGD 3. Please attach a description of the watt plants, wens, and storage taws Water treatment infrastt'ucnire tem bm,de the nth • The system operates a single surface water treatment plant — the D.N. Stevens Water Treatment Plant — which treats raw water from regional surface smm'es for drinking supply. Water sources and wells • Ti adit tonally the system has relied on surface water from four regional sources (Lake Corpus Christi, Choke Canyon Reservoir, Lake lexana, and the Colorado River vat the Mary Rhodes Pipeline) rather than +veils • Groundwater wens have recently been added as purl of drought response efforts: the II is now usher about eight municipal groundwater wens in rtual Nueces County and has additional wells under construction or planned to augmrnl supply amid tow reservoir levels. Storage facilities • The water system Includes nine water storage tanks that help ha ante distribution and maintain pressure 1hrougl out the service area. IV. WASTEWATER SYSTEM DATA A. Wastewater Systems Data (if applicable) Wastewater data is not applicable. I. Design celiacBy of wastewater treatment plant IGD)'. C-28 2. Briefly describe the water supplier. Ash trt town( plant(s) sit receiving stream if ern(s) of the area serviced by the wholesale public tted wastewater is disposed Where applicable, identify he ICED name and number, the operator, owner, :mil the INmtewater Data for service Area Of applicable) Wastewater data is not applicable. J. Percent of water service area served by wait 1 ew¢ter system: 2. Monthly volume treated for previous five years (In 1,000 gallons): Year Month January February March April May Jame July August September October November December Totals C - 29 Water Conservation Plan In addition to the description of the wholesaler's a area (profile from above), a water conservation plan for a whN(Main puhiir water .vLpplierhn service clude, alit ,additional information as required by Tttie30, Texas Administrative Code, Chapter 288.5. Note: If the water conservation plan dues nil provide information for each requirement an explanattor must be included as to why the requirement tit is not apphrahle. A. Specific, Quantified 5 & 10 Year Targets the water conservation plan must include sped ,rNlmblied 5-weir andI 0-yeartargets for water savings including, where appropriate, target goals for municipal use in gallons per capita per day for the wholikaler's neryitr - acceptable )water loss, and the basis for the development of these goals.Note that the goals eetdilished by a wholesale water supplier under tins subparagraph are not enforceable. These goals must be updated during he year review and submit tad B. Measuring and Accounting for Diversions The water conservation plan nasal indade a description as to which practice(s) and/or device(s) will be utilized to measure and account for the amount of water diverted from the. source(s) of supply. C. Record Manageolenl Program T he was et mnservallon plan must indude a monitoring and record management program for determining water deliveries, sales, and losses. D. Metering/Leak-Defection and Repair Program 'the water conservation plan must include a program of metering and leak detection and repair for (M wholesaler's timer storage, delivery, and distribution system. n Contract Remrrletnen'sfor Successive Ctr.vlanrer Conservation The water conservation plan mast include a requirement in every water supply contract entered into or renewed after official ado➢bon of the water conservation Nan. and including any contract edensfuhr, (tut each successive svbolesale customer develop and implement a water ewservadun plan or water rnnserlvcrnn meavnrev USA ng me applicable the tr of Title ill 1hC chapter Zee. a d the lit mere intents to provide t hat) the water, then the rcmreot between the initial supplier and customer meet ntpvlde that cad' 'otncessive the resale or the watermustofthave atewill be required d oliemnm Slanr was a conservaaton assurer in tat resale of the water will be this cd to implement eater conservation measures s in accordance with the Provlrinhac of Ietir chapter. F. Reservoir Syvlerm' One rnllnm' Plan The water conservation plan mull Include c reservoir systems operations plan, if applicable, providing for the) ordlnated operatnal of reservoirs owmd by l he applhmn within a coalition watershed or river basin the reservoir systems operations plan shall include optimization of water supplies as one of the significant goals of the plan. G. lnforremem Procedure and Official Adoption C - era The hinter conservation plan must include a means for impiemen1ation and enforcement, which shall be evidenced by o copy of he ordinance, rule, resolution, or tariff, indicating off -al adoption of the water conservation plan by the water supplier; and a description of the authority by which the water supplier will implement and enforce the conservation plan. H. Coordination with the Regional Water Planting Group(s) The Waller conservation plan must include documentation of coordination with the regional water planning groups for thr_seni,:, Irca of the wholesale water supplier in order to ensure consistency with the appro➢nate approved regional water plans. Example statement to be included within the water conservation plan: The service area of the Winne of wader supplier) is loaned within the (rare of regional Water planning area or mvas) and (name of (naregional has provided a ropy mtiros water conservation plan m dhe (name of re9iatal waver planning gaup or groups). 1. Plan Review and Update A wholesale water supplier shalt review and update its water conservation plow, as approprate based on an assessment of previous 5-year and 10-year targets and any other new or updated information A wholesale water supplier shall eview and update the next revision of its water conservation Nan no later than May I, 2009, and every five years after that date to coincide with the regional water planting group. The revised plan must also include an implementation report. ADDITIONAL CONSERVATION STRATEGIES Any combination of the following strategies shall he selected by the realer wholesaler, in addition to the minimum requirements of 30 TAC B283.5(1), if they It necessary In order to achieve the stated water runserval inn goals of the plan. The commission may require by commission order that any of the following strategies be Lnplernnu ed by the water supplier if the emnmvssion determines Ilhot the stratrgies are necessary in order for the conservation plan to he achieved: 1. Conservation-onerned water rates and watrr rle structures such as uniform or increasing mock rate schedules, and/or seasonal rates, ben not tint raw or decreasing block rates; 2. A program to assist agricultural customers in the development of conservation pollution prevention and abatement plans; 3. A➢rogram for reuse and/or recycling of mast ewmer and/or graywater; 4. Any other Winer conservation practice, nm1hod, or technique which the wholesaler shows to be appropriate for achiesang the stated goal or goals of the water conservation plan. VI. WATER CONSERVATION PLANS SUBMITTED WITH A WATER RIGHT APPLICATION FOlt NEW OR ADDITIONAL STATE WATER C-31 Water Conservation Plans submitted with a water right application for New or Additional state water must include data and information tvhlch: I. support the applicant's proposed sue of water with consideration of the water conservation goals of the 'MU et nmaervalinn plan; 2 evaluates conservation as an alga native to the proposed upprnpriattoq and 3 evaluates any other feasible uhernative to new rater development !minding, but not hunted to, waste prevention, leg chug and reuse, water transfer anti marketing, regionalization, and optWwn water management practices and procedures. Additionally, It shall be the burden of proof of the applicant to demonstrate Owl no feasible alternative to the proposed appropriation exists and that the requested amount of appro➢riatfon is necessary and reasonable for the proposed use. C - 32 • • •• • 61rr• • • • • • • • • •• • •• • • • • u • • •• ••=111.• • • •• • ••• • •• •• • 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 (Steve) Ramos Assistant Director of Water Supply Management Corpus Christi Water (361) 826-3294 esteban! 2@cctexas.co to 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. D - 2 Table of Contents 1.0 introduction and Objectives 4 2.0 Texas Commission on Environmental Quality Rules 5 3.0 Description of Water Use in the Production Process 6 3.1 City of Corpus Christi Water Sources and Industrial Water Use Description 6 3.2 Model Industrial Water Conservation Plan Description of Water Use in the Production Process 7 4.0 Specification of Water Conservation Goals 8 4.1 City of Corpus Christi Water Conservation Ptan Goats 8 4.2 Model Industrial Water Conservation Plan Specification of Water Conservation Goals_ 8 5.0 Accurate Metering to Measure and Account for Water 10 5.1 City of Corpus Christi Metering to Measure and Account for Water 10 5.2 Model Industrial Water Conservation Plan Metering to Measure and Account for Waterl0 6.0 Leak Detection, Repair, and Water Loss Accounting 6.1 City of Corpus Christi Leak Detection, Repair, and Water Loss Accounting 11 11 6.2 Model Industrial Water Conservation Plan Metering to Measure and Account for Water/1 7.0 Water Use Efficiency Process and/or Equipment Upgrades 12 7.1 Model Industrial Water Conservation Plan Water Use Efficiency Process and/or Equipment Upgrades 12 8.0 Other Conservation Practices, Methods, or Techniques 13 8.1 Model Industrial Water Conservation Ptan Other Conservation Practices, Methods or Techniques 13 9.0 Implementation and Update of the Model Water Conservation Plan 14 9.1 City of Corpus Christi implementation and Update of the Model Water Conservation Plan 14 9.2 Model Industrial Water Conservation Ptan implementation and Updates 14 Appendices 15 D - 3 City of Corpus Christi Model Industrial Water Conservation Plan As referenced in the Forward, this Model Industrial Water Conservation Plan is provided as a guidance document to support industrial facilities in developing compliant, facility -specific plans. The document includes boilerplate language and section -by -section guidance outlining the required components, recommended best management practices, and considerations for efficient water use and long-term conservation. To avoid confusion with outdated or site -specific information from prior versions, certain data fields within this document have been replaced with placehotder values (e.g., "[XJ" or "[YYYY]"). These placehotders are intentional and are meant to he completed by each facility using current, accurate data relevant to their operations. 1.0 Introduction and Objectives Water supply has always boon a koy 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 sarne time, local and Less expensive sources of water supply are largely developed. Additional supplies to moot 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 tor 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 II)'. This Model Industrial Water Conservation Plan includes measures that are intended to result in ongoing, tong -terns water savings. Best management practices established by the Texas Water Development Board were also considered in tho development of the water conservation measures'. This Model Industrial Water Conservation Plan addresses all of the elements required by TCEQ. Each industrial user should customize the details to match its uniauo situation. At a minimum. an Industry': 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. D-4 The model plan lists the TCEQ rules; describes Industrial customers for the City of Corpus Christi; provides recommendations for setting conservation goats; describes water measurement devices and methods; discusses teak detection,repair, and water loss accounting; and reports existing and future water use efficiency practices. 'Superscripted numbers match references listed in Appendices. D - 5 2.0 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 II. 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 inthe 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 maybe contained within another water management document(s)3." Conservation Plan Requirements The minimum requirements In Ole TAC Title 30, Part 1, Chapter 288 for water conservation plans for industriat or mining uses are shown below. TAC Reference Subject Plan Location 30 TAC 8288.3(a)(1) Water Use in the Production Process Section 3 30TAC9288.3(3)(2) Water Conservation Goats Section 4 30 TAC §288.3(3)(3) Accurate Metering Section 5 30TAC§288.3(a)(4) Leak Detection, Repair, and Water Loss Accounting Section 6 30 TAC§288.3(a)(5) Water Use Efficiency Process and/or Equipment Upgrades _ Other Conservation Practices Section 7 30 TAC 8288.3_a)(61 30 TAC §288.3(b) Section 8 Review and Update of Plan Section 9 Section 9 30 TAC §288.30(2) Water Conservation Implementation Report TCEQ has also developed a Water Conservation Model Plan for Industrial Use` which is available on their website that meets the requirements listed above. D - 6 3.0 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) • Lako Texana via the Mary Rhodes Pipeline (Lavaca River Basin) • Colorado River via the Mary Rhodes Pipeline (Cotorado 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 tho highest demand. accounting for AI percent of the total. Figure 3-1 below shows year (YYYY) water use percentage by customer class for the City of Corpus Christi. Figure 3-1: Water Use Percentage by Customer Class ■ Residential • Institutional Commercial • Industrial In year(YYYYJ, there were approximately(XJtreated water connections. These connections can be divided into the customer classes of residential, multi -family, commercial, industrial, wholesale, and institutional. Both institutional ((XJ connections) and industrial (PO 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 (XJ percent of the total. D-7 (Customer AI Table 3-1: Top Large Volume Retail Customers Customer Water Use Category Industrial (Customer 8) Industrial [Customer CI (Customer Dj Industrial Industrial (Customer EJ Industrial 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 flow rates. 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.] D - 8 4.0 Specification of Water Conservation Goats 4.1 City of Corpus Christi Water Conservation Plan Goals The City of Corpus Christi has set five and ten-year goals in the 2025 Water Conservation Plan as shown in Table 4-1. Reducing water consumption at industrial facilities will help to achieve this goal. Achieve Tabte4-1: City of Corpus Christi Targets and Goals Targetlor Total (GPCD)-Tarreffor Water Loss (GPCD) Five -Year Target Date: 2030 Ten -Year Target Date: 2035 201 191 13 11 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 goats, and to identifya 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 10.0 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? D-9 Based on the findings of the first four steps, set and ten-year goalssimilar to the example below. The [Company/Facility Name] hes set a five-year gaol of reducing water use to ec-t/yr by dive years from date ofptenj end ten-year goal atreducing water use to an,ft/yr by[ten years from date otplan]. 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, inconsultation 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 documen& contains a chapter on developing and evaluating water use in the industrial sector, Including identitying total water use, appropriate metrics for evaluating water use, factors that may affect industrial water use, establishment of water conservation gnats, and measurement of water savings.] o-m 5.0 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 ifwater loss is greater than 5 percent.] D-11 6.0 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 teak. 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 tines in the area of the leak prior to repairs. Depending on the severity of the leak, these locates can take up to approximately 24 hours 3. After line tocates 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 teak 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 a goal to maintain water toss below 10%and keep the Infrastructure Leakage Index (ILI) at or under 3. 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, Now meter readings should be logged on a daily basis. If a water teak 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 teak detection and repair program if water toss is greater than 10.0 percent.] D - 12 7.0 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 4.1 D-13 8.0 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 acttieving the statedgoal(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.2J D-14 9.0 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 IV 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 Modal Plan. Appendix V 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. 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 imptement 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. D-15 Model Industrial Water Conservation Plan Appendices (The following aro example appendices to accompany a completed Industrial Water Conservation Plan] I. List of References (in this section any additional references included in a completed Industrial Water Conservation Plan must be added.] 1. Texas Commission on Environmental Quality: "Water Conservation Plans for Industrial or Mining Use," Texas Administrative Code Title 30 Part 'Subchapter A9288.3, effective December 6, 2012. 2. Texas Water Development Board: Best Management Practices for Industrial Water Users, Austin. [Online] Available URL: Irttps:/Arvrw.twdb.Texas.gov/conservation/BMPnInd/doc/IndMiniGa,pdt, February 2013. 3. Texas Commission on Environmental Quality: "Definitions," Texas Administrative Code Title 30 Part I Subchapter A 9288.1, effective August 16, 2018. 4. Texas Commission on Environmental Quality TCEQ Form 20839 "Industrial Water Conservation Plan", Austin [Online] Available URL: latp:/t vv w. tceq. texas.govjassets/pubIk /nerminira>fnrms(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:rlwww.twdh.texas gov/conservallon/doctSB181Guidance.ndf, December 2012. II. Texas Commission on Environmental Quality Rules on Water Conservation Plans for Industrial or Mining Water Use III. TCEQ Industrial Water Conservation Plan IV. City Council Resolution Adopting the Model Water Conservation Plan V. Letter to the Region N Water Planning Group VI. Supplement to Corpus Christi Water Conservation Plan to Address TAC § 288.7 D-16 Appendix E Lettersto Region N Water Planning Group Date: Mr. Soon Bledsoe. Co -olio- Region N Water Planning Group c/o Nueces River Authority 539 HWY 833 Uvalde, TX 78801 Re: 2025 City of Corpus Christi Water Conservation Plan Dear Mr. Bledsoe: Enclosed please find a copy of the 2025 City of Corpus Christi Water Conservation Plan, which Is submitted to tho Regional N Water Planning Group in accordance with 30 T A C. Chapter 288. This plan includes the required 5-year update to the 2020 City of Corpus Christi Water Conservation Man.Additional copies have been provided to the Texas Commission on Environmental Quality and the Texas Water Development Board. Sincerely, Esteban (Steve) Ramos Assistant Director of Water Supply Management Corpus Christi Water E- 2 Appendix F - Resolution for Adoption of Water Conservation Plan