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Home My WebLink AboutC2019-612 - 10/23/2019 - NA TASK ORDER NO. 51 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) by Motion No.M2016-093. 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: E16264 Water and Wastewater Treatment On-Call Support 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: Water System Engineering Support, more fully described in Exhibit A. 3. COMPENSATION: The total amount not to exceed for Task Order No. 51 only is$13,130.00. 4. PROJECT DELIVERABLE(S): Deliverables will be received in 4 weeks upon issuance of Notice to Proceed. 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 CORPUS CHRISTI LNV,INC. DigobSly by W v ECntic Dcoo Mlalf EMronCs,o. wN rpnaannp. / Damm,c+US 4/ 1174°11/14--- /J Data 101910.3315.442-OS00' /e 7 //f' Jeff H. Edmonds, P E. Date 4f- D S. Leyendecker, P.E. bate Director of Engineering Services President 801 Navigation, Suite 300 Corpus Christi, TX 78408 (361) 883-1984 Office danl@Invinc.com Task Ortler No.51 Page 1 of 2 SCANNED Fund Name Accounting Unit Account No. Activity No. Amount Wastewater Operating Fund 4200-33000-042 530000 E16264-01-4200-EXP $13,130.00 Task Order No.51 Page 2 of 2 Professional Services Contract City of Corpus Christi Water/Wastewater Treatment On-Call Support City Project No. E16264 Task Authorization No. 51 Williams Lift Station Capacity Evaluation and Modeling October 17, 2019 UMV Exhibit A Page 1 of 5 PPUS[,/ 4 LNV 0 SCOPE OF WORK Water and Wastewater Treatment On-Call Support Project No. E16264 Task Authorization No. 51 —Williams Lift Station Capacity Evaluation and Modeling BACKGROUND & PURPOSE The Williams lift station has a capacity of 49 MGD and is the largest lift station in the City of Corpus Christi's wastewater collection system. The lift station and the associated 36-inch ductile iron force main were originally constructed in 1978 and outfall at the existing headworks of the Oso Water Reclamation Plant (Oso WRP). A number of improvements are currently being performed and planned both at the lift station and at the Oso WRP. Due to this, the City wants to evaluate the impact of the potential changes in the system on the Williams lift station to plan and implement suitable upgrades, if required. The purpose of this task authorization is to assist the City by performing a hydraulic analysis of the system using the City's existing wastewater hydraulic model for the Oso basin.The aim of the hydraulic analysis is to identify the impacts on the capacity of Williams lift station and force main due to the following planned changes/upgrades to the system: • Replacement of existing headworks at the Oso WRP with new headworks(with a differential elevation of approximately 20 feet) and change of outfall of Williams force main to new headworks • Replacement of Lift Station 1 at the Oso WRP with a new lift station(6 pumps with planned future capacity of 8 pumps)and evaluation of potentially changing outfall of Williams Force Main to the new lift station • Impact of increasing Oso WRP annual average flow(AAF)capacity from 16.2 million gallons per day(MGD)to 18.0 MGD in the future In addition to the impacts on Williams lift station and force main, the hydraulic analysis will also evaluate the impact of the above-mentioned changes on Lift Station 2 at Oso WRP and the surrounding collection system. SCOPE OF WORK BASIC SERVICES: The Engineer will perform the following: Task 051A—Capacity Evaluation and Modeling • Perform hydraulic analysis using the City of Corpus Christi's wastewater hydraulic model for Oso basin for the following scenarios: i. Scenario 0: Design storm—Baseline using existing flow path and outfall ii. Scenario 1: Design storm flow—Change outfall to proposed headworks • Scenario 1(a): Upgrade pumps at Williams lift station • Scenario 1(b): Optional—Replace Williams force main • Scenario 1(C): Optional—Replace Lift Station 2 pumps 1 Exhibit A Page 2 of 5 `yf LNV iii. Scenario 2: Design storm flow—Change outfall to proposed Lift Station 1 —Use 6 pumps • Scenario 2(a): Replace Williams force main • Scenario 2(b): Upsize Lift Station 1 — Add two new pumps (expected future capacity) DELIVERABLES • One(1)electronic copy of modeling results and Engineer's interpretation of results SCHEDULE The Engineer's services shall be performed in a timely manner consistent with sound professional practices. 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 construction schedule presented is a preliminary estimate and may change depending on the improvement solutions selected. The Engineer shall begin work immediately upon receipt of the executed Task Authorization and/or Notice to Proceed (written or emailed). The work under this task authorization is anticipated to be complete in accordance with the following schedule. TASK NUMBER TASK DESCRIPTION DURATION Notice to Proceed(NTP) To be Determined(TBD) 051A Capacity Evaluation and Modeling 4 weeks after NTP 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 $13,130.00. The Engineer shall not incur any cost in excess of this not-to-exceed amount without prior written authorization from the City. 2 Exhibit A Page 3 of 5 `opvos cN4 if LNV Li • , f • 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: Pablo Martinez, P.E. C.P.M Project Manager Engineering Department City of Corpus Christi Office: 361-826-1929 Email: PabloMl@cctexas.com 3 Exhibit A Page 4 of 5 ATTACHMENT A Man-Hour and Fee Analysis LNV Inc. Senior Project EJT III EIT 11 Manager TOTALS $ 230.00 $ 135.00 $ 120.00 Task Description Hrs. Sub-total Hrs. Sub-total Hrs. Sub-total Total Hrs. Total Fee 051A Capacity Evaluation and Modeling - Scenario 0-Baseline 2 $ 460 2 $ 270 12 $ 1,440 16 $ 2,170.00 - Scenario 1 -Change Outfall to Prop. Headworks 2 $ 460 4 $ 540 10 $ 1,200 16 $ 2,200.00 Scenario 1 (a)-Design Storm Flow-Upgrade Pumps at $ $ 6 $ 720 6 $ 720.00 Williams LS Scenario 1 (b)-Optional -Design Storm Flow-Replace $ $ 6 $ 720 6 $ 720.00 Williams Force Main - Scenario 1 (C)-Optional -Replace Lift Station 2 Pumps $ - $ - 6 $ 720 6 $ 720.00 Scenario 2-Design Storm Flow-Change Outfall to Prop. 2 $ 460 4 $ 540 10 $ 1,200 16 $ 2,200.00 Lift Station 1 - Scenario 2(a)-Replace Williams force main $ - $ - 6 $ 720 6 $ 720.00 - Scenario 2(b)-Upsize Lift Station.Add 2 new pumps $ - $ - 6 $ 720 6 $ 720.00 - Compilation and QA/QC of results 4 $ 920 8 $ 1,080 8 $ 960 20 $ 2,960.00 Subtotal 10 $ 2,300 18 $ 2,430 70 $ 8,400 98 $ 13,130.00 Total for Task Authorization 51 10 $ 2,300 18 $ 2,430 70 $ 8,400 98 $ 13,130.00 Exhibit A Page 5 of 5