HomeMy WebLinkAboutC2018-259 - 6/18/2018 - NA TASK ORDER NO. 21
This Task Order pertains to a Master Services Agreement for Professional Services by and between City of Corpus
Christi, Texas (City) and LNV. Inc. (Consultant) dated August 16, 2016 (Agreement). Consultant shall perform
services on the project described below as provided in this Task Order and in the Agreement. This Task Order
shall not be binding until it has been properly signed by both parties. Upon execution, this Task Order shall
supplement the Agreement as it pertains to the project described below.
PROJECT NAME/NUMBER: Water and Wastewater Treatment On-Call Support, E16264
1. PROJECT DESCRIPTION-This project provides the Utility Department with on-call services to assist with
any technical, operational, maintenance,diagnostic and design concerns for the City's O.N.Stevens Water
Treatment Plant and six wastewater treatment plants.
2. SCOPE OF SERVICES -Wastewater Collection System Odor Control Chemical Assessment more fully
described in Exhibit A.
3. COMPENSATION -The total amount not to exceed for Task Order No. 21 only is $51,002.00.
This Task Order is approved and Consultant may proceed. All other terms and conditions of the Agreement
remain in full force and effect.
CITY OF C.RP 4 S 1STI LNV, INC
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J- H. Edmonds, P.E. Date Dan S. Le decker, P. . Date
Director of Engineering Services Presi•- t
801 Navigation, Suite 300
Corpus Christi, TX 78408
(361) 883-1984 Office
loganb@Invinc.com
Fund Name Accounting Unit Account No. Activity No. Amount
Wastewater Operating Fund 4200-33000-042 530000 El 6264-01-4200-EXP $51,002.00
2018-259
6/18/18
LNV Inc.
INDEXED
City Project No. E16264
Professional Services Contract
City of Corpus Christi
Water/Wastewater Treatment On-Call Support
Task Authorization No. 21 — Wastewater Collection System
Odor Control Chemical Assessment
April 13, 2018
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EXHIBIT A
Task Order 21
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SCOPE OF WORK
Project No. E16264
Water and Wastewater Treatment On-Call Support
Task Authorization No. 21 —Wastewater Collection System Odor Control Chemical
Assessment
PURPOSE
The City of Corpus Christi currently uses ferrous sulfate treatment within the collection system.The current
odor control practices are based on the City's historical experience and locations of odor complaints from
customers.
The purpose of this task authorization is to provide assistance to the City staff by evaluating chemical
products to utilize for odor control in the collection system with considerations for cost and technical
performance. The following describes the typical key project tasks in evaluating collection system odors
and selecting appropriate treatment strategies including application of chemical(s).
1. Historical Review-Review of historical liquid and gas phase data,flows,customer complaints
and known trouble areas.
2. Additional Sampling-Field/bench-scale testing to augment gaps in historical data
3. Drivers.Treatment Goals.and KPI Development—
• Evaluation of odor causes and selection of appropriate treatment regarding odor.
• Identification of any odor impacts from industries or individual customers.
• Narrow down list of potential treatment options to be bench tested.
• Establish and define Key Performance Indicators(KPIs).
4. Product Evaluation— Bench/pilot-scale testing to evaluate the efficacy of selected treatment
chemicals
5. Selection and Implementation—Selection of appropriate chemicals and design/implementation
of treatment facilities
6. Training and Monitoring-Monitoring strategy to optimize odor treatment
The scope of this project will will) address project tasks 1 through 3. After completion of the scope
described below,a select group of chemical strategies will be evaluated separately in project tasks 4 through
6 under a separate task authorization, if requested by the City.
EXHIBIT A
Task Order 21
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SCOPE OF WORK
ADDITIONAL SERVICES:
The Engineer will perform the following:
Task 0001 — Historical Review
a. Review historical flow data and ferrous sulfate data
b. Review historical customer complaint data
c. Review available historical wastewater quality data
Task 0002—Additional Sampling and Analysis
a. Select up to five(5) monitoring sites based on historical data review for additional sampling
and monitoring.
b. Coordinate with the City on monitoring/sampling assistance.
c. Collect liquid and gas phase data at target sites/locations identified in the test plan.
d. Evaluate sampling data to provide initial evaluation of lift station treatment needs
MEETINGS
• Ten 2 hour site visits will be performed to perform field sampling/monitoring.
ASSUMPTIONS
• For liquid phase sampling, LNV/ Hazen will sample 5 locations at 2 grab samples
per location (10 total samples)
• LNV/Hazen will provide and use gas phase data collection devices(e.g. OdaLogs,
Electronic nose).
• LNV/Hazen will provide and use liquid phase kits to measure residual sulfides/total
sulfides.
• City will provide sample bottles and assist with analysis of liquid samples collected
for typical parameters such as BOD,TSS, pH,alkalinity,etc.
• City will assist LNV/ Hazen staff in the field as necessary to access odor
site/facilities.
Task 0003— Drivers and Treatment Goal Selection
a. Meet with City Staff to identify odor control drivers including odor impacts from industries
and develop initial treatment goals
b. Develop key performance indicators to evaluate each chemical treatment strategy
c. Provide a preliminary list of all chemical options to the City and a final list with the paired
down recommended chemicals according to treatment goals
d. Review the cost/effectiveness of existing chemical addition.
e. Develop a preliminary estimate of chemical usage based on collected field data and industry
standards.
EXHIBIT A
Task Order 21
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MEETINGS
• One (1) two hour meeting to identify odor control drivers and develop treatment
goals
• One (1) three hour Final workshop to discuss results of field sampling and list of
potentially viable chemical strategies.
ASSUMPTIONS
• The City will participate in the drivers and goals meeting
• The City will participate in the final workshop and provide feedback on chemical
recommendations.
DELIVERABLES
The Engineer will prepare a MS PowerPoint Presentation summarizing findings to be presented at the Final
Workshop City's review and comment.
SCHEDULE
The Engineer's services shall be performed in a timely manner consistent with sound professional practices.
The Engineer will complete the work according to the following schedule:
Activity Completion Date
Contract Execution-Notice to Proceed (NTP) TBD
Task 0001- Historical Review 3 weeks after NTP
Task 0002-Additional Sampling 6 weeks after NTP
Task 0003- Drivers and Treatment Goal Selection 10 weeks after NTP
The time limits set forth in the schedule shall include allowances for reasonable and expected review time
by the City and shall not be allowed as cause for delay or adjustments to the schedule. Delays caused by
review times by the City exceeding those anticipated by the Engineer's schedule are cause for adjustments
in the schedule. Delays caused by laboratory analyses times exceeding those anticipated by the Engineer's
schedule are cause for adjustments in the schedule. Any adjustments made to the agreed upon schedule
shall be made in writing and accepted by both parties.
The Engineer shall begin work immediately upon receipt of the executed Task Authorization and/or Notice
to Proceed(written or emailed).
FEE
The services will be provided on a Time and Materials basis as the project is moved towards completion.
The anticipated amount for this task authorization is S51,002.00. as shown in ATTACHMENT A. If the
level of effort exceeds this estimate,a separate task authorization will be requested.
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EXHIBIT A
Task Order 21
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TASK AUTHORIZATION MANAGER
The Task Authorization Manager will be the primary contact person during the performance of this work.
All correspondence or inquiries should be addressed to the Task Authorization Manager. This work task
will be coordinated by:
Dan Grimsbo, P.E. A.I.C.P.
Executive Director of Utilities Department
City of Corpus Christi
Office: 361-826-1874
Fax: 361-826-1889
Email: DanG(i4cctexas.com
APPROVAL
The undersigned has reviewed and approved this Task Authorization and recommends LNV, Inc. to
perform the work as presented:
Recommended by:
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( 'c'/zl/•j%j(J (Printed Name)
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EXHIBIT A
Task Order 21
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Attachment A
Task Authorization No. 21
Man-hour and Fee Analysis
LNV Inc. Pnnnwl/VP Proied Mgr._ PHlett Engineer Eli II TOTALS
$ 265.00 $ 205.00 $170.00 $120.00
Task Description Hn. Sob teal Hn. Sob total Hrs. Subtotal Hn. Subtotal Taal Hn Total Fee
0001 Historical Review 5 4 S 821 S o 5 4 $ 820.00
0002 Additional Sampling 2 $ 530 4 5 820 5 24 5 2.880 30 5 4,230.00
0003 Drivers and Treatment Goal Selection and Workshop 2 $ 530 4 820 4 $ 680 12 $ 1.440 22 5 3,470.00
.._....-. - Sub-totals 4 S 1,060 12 S 2,460 4 S 660 1 36 $ 4.320 56 5 8,520.00
Hazen and Sawyer PnntipavVe QAQC Projen Engi_ EliIMPIMPTA"
$ 285.00 $"•305.00 $165.00 511000 .- .. Aaml-istrativo
- Dt.xft h- - -._ 'Nn. 5ubtolal n. 5ubt• •: '. 1 - •.� ' :...:
0001 Historical Review - • 570 4 $ 1.220 4 $ 660 16 $ 1,760 26 $ 4,210.00
0002 Additional Sampling 2 S 570 8 $ 2,440 24 $ 3.960 60 5 6.600 94 S 13.57000 52.50000
0003 Drivers and Treatment Goal Selection and Workshop 8 5 2.280 16 5 4.880 32 5 5,280 40 S 4,400 96 5 16.840.00 S 1.500.00
482.00
Total I$ 51,002.00
EXHIBIT A
Task Order 21
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