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HomeMy WebLinkAboutC2018-265 - 6/20/2018 - NA TASK ORDER NO. 23 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 — ONSWTP Coagulation Optimization Study more fully described in Exhibit A. 3. COMPENSATION —The total amount not to exceed for Task Order No. 23 only is $77,958.00 This Task Order is approved and Consultant may proceed. All other terms and conditions of the Agreement remain in full force and effect. 40t • - R r ISTI LNV, INC. / AW Adir Pi /p Jeff H. Edmonds, P.E. /ate -r la K. Leyendecker, 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 Operating Fund 4010-31010-062 530000 E16264-01-4010-EXP $77,958.00 2018-265 6/20/18 LNV Inc. INDEXED City Project No. E16264 Professional Services Contract City of Corpus Christi Water/Wastewater Treatment On-Call Support Task Authorization No. 23 — ONSWTP Coagulation Optimization Study June 7, 2018 `NV EXHIBIT A Pane 1 of 7 `OPpUs ChR� LNV0 SCOPE OF WORK Project No. E16264 Water and Wastewater Treatment On-Call Support Task Authorization No. 23—ONSWTP Alternative Coagulant and ClearLogx Evaluation BACKGROUND The O.N. Stevens Water Treatment Plant (ONSWTP) provides treated drinking water to the City of Corpus Christi (City) and has a rated capacity of 161.5 MGD. At the ONSWTP, conventional water treatment methods, including coagulation, flocculation, sedimentation, filtration, and disinfection, are applied to effectively treat the influent raw water. To ensure raw water is being treated cost effectively and water treatment processes are efficient and achieving high-quality drinking water, these processes should be re-evaluated as new technologies become available and suitably upgraded or modified when feasible. The current coagulant being used at ONSWTP is aluminum sulfate(alum), which is typically dosed at 90-120 mg/L. In recent years, reductions in alkalinity from wet weather events, scaling in process pipes, high solids production, and increased total organic carbon (TOC) levels have led to the need for the evaluation of an alternate coagulant. The City has begun engaging with coagulant vendors to investigate alternative coagulants for the ONSWTP. It should be noted that preliminary modeling of water quality has predicted that the City could save between $0.5 - $1 M per year by changing coagulants. The majority of these savings are the result of reduced caustic usage for pH adjustment. In addition to the bench-scale coagulant testing being performed by various vendors, the City is interested in piloting a ClearLogx®system by H2O Innovation. The ClearLogx system is a patented monitoring system used to continuously monitor coagulant performance and allow for control of chemical feed system related to the coagulation process. This system may be installed on the full-scale facility or on the new pilot plant system to evaluate and demonstrate the efficacy of the technology for the ONSWTP. PURPOSE The purpose of this task authorization is to (1) assist the City in evaluating results of the vendor-led coagulant bench-scale testing with considerations of future process changes (e.g. chlorine, caustic addition, etc.)and performing additional jar testing as needed, and(2)assist the City in evaluating the ClearLogx®system either in a full-scale demonstration or using the ONSWTP Pilot Plant facilities. This task authorization will consider both the near-term application of an alternative coagulant including permitting requirements with TCEQ, and also the long-term application of an alternative coagulant for efficient operations of the coagulation and solids removal and handling processes. It is important that the selected coagulant alternative must meet total organic carbon (TOC)removal goals for ONSWTP regulatory compliance, but also that impacts to other downstream water quality and treatment processes be considered. The task authorization will further assist the City in coordinating with these vendors throughout the testing and reporting period. 1 EXHIBIT A Paae 2 of 7 • Dacus cr'9 • LNV .0 J SCOPE OF WORK ADDITIONAL SERVICES: The Engineer will perform the following: TASK 0001 —Alternative Coagulant Evaluation a. Review vendor-led jar testing results to determine coagulant performance and identify gaps in testing methods b. Prepare brief testing plan to evaluate "top" coagulants under current and future treatment conditions c. Perform testing to compare coagulants under current and future conditions d. Prepare a memorandum summarizing the findings of the testing and provide recommended implementation plan Note: The City Staff are currently compiling a report of the vendor-led jar tests performed to determine the most suitable coagulant for the ONSWTP.The purpose of the above-mentioned scope is to assist the City in utilizing the data collected to further analyze all possible water quality related effects on the system arising from using a new coagulant.The scope is intended to ensure the following: • All jar testing was performed under similar conditions and similar water samples were analyzed to ensure uniform results. • The coagulants selected are also evaluated to confirm efficacy with future alternative chemical applications at the ONSWTP • The coagulants selected are applicable for long-term operations including during key events such as reduced alkalinity,high total organic carbon,and wet weather events. • Impacts of coagulants selected on the downstream treatment processes and corrosion control requirements. • Sufficient jar-testing or pilot testing results are collected over an extended testing period to present to TCEQ for the alternative process chemical use. TASK 0002—ClearLogx® System Evaluation (Assume 3 months testing period) a. Develop a testing protocol in conjunction with City and H2O Innovation b. Coordinate appropriate location(s)for installation of ClearLogx®equipment c. Monitor data and system performance on a weekly basis and perform parallel jar tests for comparison d. Assist the City in evaluating 1-120 Innovations equipment proposal 2 EXHIBIT A Paae 3 of 7 . „,.s c,,, 0 A LNV J�4 ,Al) e. Demonstration performance report TASK 0003—TCEQ Design Report a. Prepare a report with chemical feed design criteria for the selected alternative coagulant and process changes(e.g.caustic addition). b. Assist the City in coordination with TCEQ c. Respond to TCEQ comments and resubmit the design report DELIVERABLES The Engineer with prepare a ClearLogx®testing plan for review and approval by the City. In addition. the Engineer will prepare a DRAFT memorandum, which will contain a summary of findings of the bench-scale experiments for alternate coagulant evaluation. A separate stand-alone DRAFT memorandum will be prepared to summarize the ClearLogx® system performance. Both will be submitted for the City's review and comment. Upon receipt of comments,the Engineer will incorporate the comments into the FINAL memorandums and provide one (I) hard copy and one (I) electronic copy of each to City staff. MEETINGS • One(I)one hour kick-off meeting • One(I)one hour coagulant workshop session • One(1)site visit • Twelve(12) four hour ClearLogx®and jar testing comparison site visits • One(1)two hour results workshop • Two(I)two hour calls with TCEQ ASSUMPTIONS • Laboratory Analyses(e.g. TOC)to be performed by City Laboratory • Troubleshooting of ClearLogx®equipment to be provided by H2O Innovation • Scope assumes up to one resubmittal of the TCEQ design report • Electrical and instrumentation installation to be performed by H2O Innovation or City Staff • Integration to be performed by City Staff 3 EXHIBIT A Paae 4 of 7 • US Pp CH C.� qs .INV X Jti F SCHEDULE The Engineer's services shall be performed in a timely manner consistent with sound professional practices. The Engineer will complete work according to the following schedule: TASK Activity Completion Date Contract Execution -Notice to Proceed (NTP) TBD 0001 Alternative Coagulant Evaluation 8 weeks after NTP 0002 ClearLogx®Testing Plan 6 weeks after NTP • DRAFT Memorandum 2 weeks after bench-testing • FINAL Memorandum 5 weeks after bench-testing 0003 • DRAFT TCEQ Design Report 3 weeks after 0001 • Final TCEQ Design Report 6 weeks after 0001 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 $77,958.00, as shown in ATTACHMENT A. The Engineer will not incur cost in excess of this not-to-exceed amount without prior written authorization from the City. 4 EXHIBIT A Paae 5 of 7 ?yus CH . O LNV J ' 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@cctexas.com APPROVAL The undersigned has reviewed and approved this Task Authorization and recommends LNV, Inc. to perform the work as presented: Recommended by: DM-NJ 6Q/n 7,..56U (Printed Name) // c�.�J eZL / (Date) 5 EXHIBIT A Pane 6 of 7 § q 0 06 ul / ) ` N i7 § § } - ° ( ) § e -g \ _ 8 8 E 8 4 8 8 8 ` ; } § } ! 2 ` & \ _ 45 2 2 \ \ G ° § ` % ` 6 f ; , f = _ , ; - » \ } § & : z a 7 z % . C , , 'A _ § v , i , 'A § $ § . _ , ., a ■ ; f , 7 7, 5 K ; _ va k ) ` 2 \ ~ _ \ , 'A , _ , 'A , - ~ >, e@ ` @ 0 73 7 \ / a ƒ § i .• : 2 = ^ ^ - < c < ® - ƒ / L ) \ \ ) — , , , 2 C.> \ 2 ( j , - ) , , _ 03 ..0 * 8 g8 722 fig / , , = s q ) ® Q ! m a = _ - _ / ( _ . , ) t Ti © © - § � !\ § _ _ \ , 'A , _ f § } § / , 4 ` ƒ , , , CO in C 2 . E CO \ \ \ \ 0 ) E j E § ( \ k \ - To j \ co- ) > > cc G cc 2 f .9 c c ..9., 7 \ t 0 \ } g N ,_ ) t co 2 § N * § k \ - \ \ » I k •\ { \ \ § / .« (0 r411 - a r EXHIBIT A Paae 7 of 7