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Home My WebLink AboutC2017-349 - 6/9/2017 - NA TASK ORDER NO. 8 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–Planning Level Assessment of O.N.Stevens Water Treatment Plant Chlorine Gas System 3. COMPENSATION –The total amount not to exceed for Task Order No 8 only is $61,380. 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 fp •HRIS LNV, INC' Air 'eforA. �- a 7 , �7 J ff H. Edmonds, P.E at Dan S.—�r�'�r, P.E. Date Director of Engineering Services President 801 Navigation, Suite 300 Corpus Christi, TX 78408 (361) 883-1984 Office loganb@Invinc.com Fund Name Accounting Unit Account No. Activity No. Amount Water 2015 CIP 4096-062 550950 E16264-01-4096 EXP $61,380 2017-349 6/09/17 LNV Inc. INDEXED City Project No. E16264 Professional Services Contract City of Corpus Christi Water/Wastewater Treatment On-Call Support Task Authorization No. 8 - Planning-level Assessment of ONSWTP Chlorine Gas System May 12, 2017 LNV Task Order No. 8 Exhibit A Page 1 of 6 Op,US c,, LNVJh SCOPE OF WORK Project No. E16264 Water and Wastewater Treatment On-Call Support Task Authorization No. 8- Planning-level Assessment of ONSWTP Chlorine Gas System PURPOSE The City of Corpus Christi operates one(1) water treatment plant, O.N. Stevens Water Treatment Plant (ONSWTP), which has a rated capacity of 161.5 million gallons per day (MGD). Conventional water treatment processes are employed to provide treated water to its residents, including coagulation, flocculation, sedimentation, filtration, and disinfection. Currently, disinfection at ONSWTP is provided by a chlorine gas system,along with I-ton chlorine cylinders that serve as a partial back-up.The chlorine gas system converts liquid chlorine into gaseous chlorine and conveys it to various locations throughout ONSWTP using carrier water. The purpose of this task authorization is to provide assistance to the City staff by performing a planning- level assessment of the existing chlorine gas system. This assessment would include a basic inventory of the existing gas system, including components in the current gas measurement building, along with an evaluation of the immediate needs for the gas system to ensure reliability and safety. Along with this assessment, this task authorization also allows for the development of a long-term strategy to meet anticipated future disinfection needs at ONSWTP by comparing various alternative disinfection strategies. SCOPE OF WORK ADDITIONAL SERVICES: ITEM 2—Permitting and Regulatory The Engineer will perform the following: 1. Compare the regulatory requirements for the implementation of existing chlorine gas system improvements and the installation of new facilities and equipment. 2. Summarize the regulatory requirements tier the following alternative disinfection technologies, which will be evaluated in the development of the long-term disinfection strategy • Gas Chlorine • On-site chlorine generation • Bulk sodium hypochlorite • 1-ton chlorine cylinders(for back-up) • Any combination of the previously-mentioned methods Task Order No. 8 Exhibit A Page 2 of 6 opus C•4 LNV • ITEM 9—General Engineering The Engineer will perform the following: 1. Conduct multiple site visits to develop a basic inventory of the components of the existing chlorine gas system, along with vendor information, capacities, and their estimated remaining useful service life 2. Determine the immediate needs of the existing chlorine gas system to address reliability, redundancy,capacity,performance,and safety concerns by performing the following: • Investigation of a back-up chlorine gas system to provide redundancy • Evaluation of minor modifications to the existing gas measurement building to address reliability or safety concerns • Evaluation of bulk chlorine storage handling and facilities,including the rail car delivery system • Evaluation of existing chlorine gas equipment 3. Develop a long-term disinfection strategy for ONSWTP to meet anticipated future needs, which would include the following: • Determination of the disinfection requirements for the existing capacity of 161.5 MGD and anticipated future build-out capacity of ONSWTP, which is currently estimated at 200 MGD • Planning level evaluation of various disinfection technologies, including non- economic advantages/disadvantages, estimated life-cycle costs, and regulatory considerations • Evaluation of potential, feasible back-up disinfection strategies for the existing capacity of 161.5 MGD and future build-out capacity to provide redundancy, such as a combination of on-site generation and the use of I-ton cylinders • Selection workshop with City staff to review findings and choose long-term disinfection strategy • Development of an preliminary plan and schedule for the implementation of the long-term disinfection strategy, including a phased approach to achieving effective disinfection at future build-out capacity 4. Prepare a memorandum that provides the findings of the planning level assessment, including a determination of the immediate needs of the gas system, and the long-term disinfection strategy 5. Provide cost estimates, along with the preliminary plan and schedule, for the immediate needs for the gas system and the long-term disinfection strategy that were identified DELIVERABLES The Engineer will prepare a DRAFT memorandum for the City's review and comment. Upon receipt of comments, the Engineer will incorporate the comments and submit one (I) hard copy and one (I) electronic copy of the FINAL memorandum. Task Order No. 8 Exhibit A Page 3 of 6 • ��US -' 4. ,0 P: CNV • 4 +(34 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 Item 9-General Engineering • DRAFT Memorandum 10 weeks after NTP • FINAL Memorandum 12 weeks after NTP The time limits set forth in the schedule shall include allowances for reasonable and expected review time by the City and approval by authorities having jurisdiction over this project, 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. 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 (T&M) basis as the project is moved towards completion.The anticipated amount for this task authorization is $61,380, as shown in ATTACHMENT A. If the level of effort exceeds this estimate,a separate task authorization will be requested. 3 Task Order No. 8 Exhibit A Page 4 of 6 . • LNVv 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: Daniel Grimsbo, P.E. A.I.C.P. Interim Assistant Director of Utilities Department City of Corpus Christi Office: 361-826-1874 Fax: 361-826-1889 Email: DanGAcetexas.com APPROVAL The undersigned has reviewed and approved this Task Authorization and recommends LNV, Inc. to perform the work as presented: Re • nended by: Oni,// /"ISLiC(Printed Name) (Date) 4 Task Order No. 8 Exhibit A Page 5 of 6 8 8 8 8 S I +I , 'o d O Fi N 0 : N 8 - co O co s z < ' a c $ 5 o E. k m �^ .� N W N N L L Q) 8 O IX Cn m Y •.• Q a (n c b CO .- N I- 8 58r CT - 1 4 ° b .0 b •^ 4. :.,. . a. N N tN fig_ _ s H R = r: R m ^S N 03 N N o g Q C Q = W b 4.. 0 W =-- g N C 8 Cu O C Q • O ;4_ .,, d N N Y t an 03 C Y 8 8- 1— R3 Inz „ e yN 2 b w g s g x • ' x S $ a ~ F8 n m o m o IT 2 mi« 13 .13 c. o = A m 0 .O v u Cm in ¢ c z e a m V 'm AW C c� W ✓ O C 7 O m 7 C - o, C C d • C Q . C > 4- E tNNo fl E E: c'; {� a `u J O a i_ O a.- N O. N 01 EXHIBIT B TASK ORDER SUMMARY MASTER SERVICE AGREEMENT WATER AND WASTEWATER ON-CALL SUPPORT PROJECT NO. E16264 TASK NOT TO ORDER EXCEED DESCRIPTION AMOUNT AMOUNT Original Contract(June 2,2016) $35,000 Amendment No. 1 Master Service Agreement(August 16,2016) $600,000 Maximum Contract Amount $635,000 TASK ORDERS: Task Order No. 1 $14,914 Greenwood Wastewater Treatment Plant Generator Sizing Task Order No. 2 $14,575 Whitecap Wastewater Treatment Plant South Clarifier Scum System Rehab Task Order No. 3 $24,350 Electrical Support for ONSWTP Intermediate Sludge Removal Phase 1 Task Order No.4 $167,588 Water System Operations Monitoring and Support Task Order No. 5 $33,524 Public Communication on City-Wide Water Quality Task Order No. 58 $10,996 Public Communication on City-Wide Water Quality Task Order No. 6 $21,373 Monthly Water Qualify Mtgs and Alt ONSWTP Residuals Mgmt Evaluation Task Order No. 7 $45,792 Implementation and Administration of General Engineering Services Task Order No.S $61,380 Planning Level Assessment of ONSWTP Chlorine Gas System Task Order No. 9 $7,052 ONSWTP Facilities Optimization Plan Update Task Order No. 10 $13,332 Distribution System Control Strategy Task Order No. 11 $7,090 Foundation Design&Windstorm Inspection/Certification for FRP Bldg at ONSWTP Task Order Total $421,966 Amount Remaining on Contract $213,034