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HomeMy WebLinkAboutCarollo Engineers, Inc. - Butterfield WTP Facility Plan Amendment No. 1 (Agreement No. 20-020 -- Project 20250)AMENDMENT No. 1 to PROFESSIONAL SERVICES AGREEMENT Butterfield Water Treatment Plant Facility Plan Project No. 20250 AGREEMENT NO. 20-020 WHEREAS, the City and Carollo Engineers, Inc., entered into a Professional Services Agreement on 7/24/2020 to provide engineering services with respect to the Butterfield Water Treatment Plant Facility Plan project. NOW, THEREFORE, this agreement is amended to allow Carollo Engineers, Inc., to provide additional professional engineering services as described on Exhibit A. Scope of Work: See Exhibit A. 2. Fee: The compensation for the additional work is based on Time and Materials and is in the amount of $29,134.00, increasing the overall total authorization amount to $289,086.00. See Exhibit B for full breakdown. Time ofperformance: The services shall be now be complete for the project on or before 3/31/2022. DATED THIS �� DAY OF M 2021. CITY OF PASCO: City of Pasco Steve M. Worley, Public Works Amendment No. I to Professional Services Agreement Carollo Engineers, Inc. Butterfield Water Treatment Plant Facility Plan CONSULTANT (�� 4:�M Chollo Engineers, i_. c. Jim Meyerhofer — Principal n Charge Page 1 EXHIBIT A THE CITY OF PASCO, WA AMENDMENT 1- SCOPE OF WORK Butterfield Water Treatment Plant— Facility Plan BACKGROUND The City of Pasco has contracted with Carollo Engineers to complete a Facility Plan for the Butterfield Water Treatment Plant, which is currently in progress. While the Facility Plan continues to develop, the City has determined that the currently scoped approach limits the level -of -detail desired to make an informed decision on the alternatives that will undergo additional screening and evaluation. As such, the City has requested an amendment to the Facility Plan scope -of -work to increase the number of alternatives to be evaluated. The resulting alternatives evaluation procedure, to be conducted as part of Task 400, is summarized in the figure below. SELECT SCREEN PROCESS SELECTED TREATMENT TREATMENT IDENTIFY ALTERNATIVES FOR ALTERNATIVE FOR PLANT PLANT PROCESS ADDITIONAL INCORPORATION INTO PROCESSES PROCESSES ALTERNATIVES I EVALUATION THE FACILITY PLAN lour processes selected by the city to high level screening of available more detailed analysis of each undergo aftematives evaluation, reasonable alternatives to select two remaining alternative ultimately 0 assumptions made for remaining processes alternatives for each process leads to selection of preferred MEN 7-73 Task 400 - Alternatives Evaluation son aftemative for each process N MEMS --' ❑ ■o■ ■ ❑ - - ■ ■ ■ —� © ❑ - - The purpose of this task is to expand the alternatives evaluation to help better identify and select the best value alternative for implementing treatment, capacity, infrastructure and operational improvements at the Butterfield WTP. 41J'I . i reatmeni rrocess option Screening This amendment adds one additional treatment process to the alternatives screening activity performed under Task 401 and one additional workshop. With this addition, alternatives will be identified and screened for a total of four treatment processes. The City will select the four treatment processes thereof based on recommendations from Carollo. The available alternatives for each of the four WTP processes will be discussed at a high level in a screening workshop. This screening will include pros/cons, a cost indicator (e.g. $, $$, $$$), and The CITY of Pasco - Butterfield WTP Facility Plan Project Amendment Page 1 of 3 risk/safety considerations for each of the identified alternatives. The two highest ranking alternatives for each of the four processes will undergo additional evaluation in Task 402. 40/-. 1 vv i r irnPruveniUnL rineiiiauvcs r%11d1yWb aiiu aCicUuUi This amendment adds one additional treatment process to the alternatives analysis being performed on selected treatment processes. As established in Task 401 and amended in Task 401.1, the top two highest ranking alternatives for each of the four processes will undergo additional evaluation, which will include process flow diagrams, conceptual site plans, comparative capital and O&M cost estimates, and scoring based on the non -economic factors established in Task 200. Assumptions 1. The general assumptions included in the original scope of work apply to this amendment. 2. Initial treatment process alternatives (prior to screening) will be compared based on high level (order of magnitude) costs for typical installations and typical performance at similar facilities. Screening of alternatives will occur in a conference call workshop with the City, attended by the CONSULTANT's Project Manager and Project Engineer. 3. The City has selected the following treatment processes and alternatives to be screened for subsequent evaluation (Task 402): • Pretreatment (currently being provided by conventional flocculation and sedimentation) Alternatives to be considered for screening: o Clarification with Plates o Ballasted Flocculation o Dissolved Air Flotation o Direct Filtration (flocculation only) • Pre -Oxidation & Primary Disinfection (including Giardia and virus inactivation, currently being provided by free chlorine and a baffled contact/storage basin). Alternatives to be considered for screening: o UV o Ozone o Chlorine o Potassium Permanganate • Taste & Odor, Metals, and Algal Toxin Treatment (currently being provided by Potassium Permanganate). Alternatives to be considered for screening: o Potassium Permanganate o Ozone o Activated Carbon Adsorption o Chlorine • Source of Residual Disinfectant (currently being provided by chlorine gas). Alternatives to be considered for screening: The CITY of Pasco - Butterfield WTP Facility Plan Project Amendment Page 2 of 3 o Chlorine gas o Sodium Hypochlorite (bulk 12.5%) o Sodium Hypochlorite (generated on-site) Meetings/Workshops: 1. Alternatives Screening Workshop. Deliverables: Pre -workshop materials, including screening information as described in Task 401 and 401.1. Task 600 — sinal Report Development of the facility plan has been effective for documenting the City's needs and goals as well as collecting WTP information into a central repository. As part of this iterative process, draft chapters have prompted further investigation into available information, generated new data requests, and ultimately resulted in significant edits to draft chapters that, in some cases, substantially changed following the initial City -reviewed content. In order to confirm the new or updated information has been sufficiently incorporated into draft chapters, this amendment would provide the City with another optional review period for the draft final report. 13.1 — Draft Final Report Revie� This amendment will provide for an additional City review of the draft final report. The draft final report will be compiled from draft final chapters 1 to 6 and the executive summary. The draft final documents will incorporate previous City review comments and any additional information provided (as developed through previous tasks). Final City comments on the draft final report will be integrated into the final report. ivicc a ngs/Wo rksf jup., 1. None Deliverables: 1. Draft Final Butterfield Facility Plan The CITY of Pasco - Butterfield WTP Facility Plan Project Amendment Page 3 of 3 EXHIBIT B ButterfieldWTP Facility Plan For the Cly of Pasco Carollo Engineers, Inc. Fee Proposal Feb 2021 S&N ISC DP OTHER DIRECT COSTS TASKIDESCRIPTION FIC PM PE TAC Engineer Eo&— Cost Est Structural Electrical Total Camilo Labor Subconcul. Sub MarkuPl Tohl Sub TOTAL COST Jim Austin Ma erbofer Mi Laetic Peters Hours Cort To I. Gosl X10% Cost pied Cos¢ TataIODG Total Labor Rale :252.00 5195.00 $195.00 1252.00 411600 318000 $195.00 $195.00 224.00 5224.00 $100.00 Taak 400-Abmetlws E».Wo 18 20 12 `A 1 1W f 16.593 $ 11.9p 6I9 1241 AI[emebve Scl^0 (O R )__ 4 $ 4716,S0e03a02 1 i i �a 1i S �f, $_ 6,938. VIPr _ T1 4 v 20 $ 7)032 6 14_ 1T� 39 i 6998 4021++`ATPI p _tARa 1 A 15elactan� 1_ B,e E I Bo ( 6 6 4 8._ 2 2 12 1 L f f._ i -�3 Pom.) 2_ Inc +om8on W. C-15 2 „8 2 � _. _ ._ 1 5 _6188 S Bio ,. - $ - -$ ask 600-FhuIR dratbn 12-12 4 S 603.1 F IR ReM _ 2 I 12 12 —tl 1053fi _i 1 1 D RF IReportS Em11el ____ 2 In. o/wmmeras on tlnRfinal re rt 2 __�_,4 q 8 i _, 24 4 18 _ _.__ 4, is S 3,178 i _1T 3 $ 3__� TOTµ I . 3 I 19 1 TI 1 t p 2 1 10 31831 4 - S 29131 p-_, FaccofiWaMSamw Time Tracking Week of February 22, 2021 Monday Tuesday Wednesday Thursday Friday Total Projects 2/22/2021 2/23/2021 2/24/2021 2/25/2021 2/26/2021 Administration 4 3 3 2.5 12.5 Miscellaneous 2.5 3 2.5 2 10 Fire Station 84 PWRF 35 Million Gallon Pond 0.5 2 1 1.5 5 PWRF Irrigation Pump Station Ast / Heritage Gas Station 1 0.5 1 2.5 Riverhawk Pointe II Phase 2/3 0.5 0.5 1 Angel Auto Glass 0.5 0.5 Rd 36 Lift Station Ramsey Coffee Shop (Nina) Explore & Learn Preschool 0.5 0.5 Miscellaneous Training 1 1 Right of Way - Sewer Right of Way - Water Right of Way - Streets 1 2 1 4 Holiday Overtime Vacation Total Hours for Week 1 9 9.5 9.5 9 37