Common use of Project Introduction Clause in Contracts

Project Introduction. This Scope of Services is to define the Consultant's scope, schedule, and budget for furnishing preliminary design services for the Hexavalent Chromium Well Treatment Improvements Project – Phase 1, Preliminary Design Reevaluation (Project). The City of Watsonville (City) supplies and distributes potable water for drinking, fire protection and supplemental agricultural irrigation to its customers within both City limits and in unincorporated areas of Santa Cruz County. The purpose of the Project is to reevaluate, confirm, and update the preliminary design criteria for treating the City’s affected potable groundwater extraction ▇▇▇▇▇ for hexavalent chromium (Cr6). On April 17, 2024, the State Water Resources Control Board adopted a Cr6 Maximum Contaminant Level (MCL) of 10 micrograms per liter and the MCL is anticipated to be finalized by October 1, 2024. Previously, ▇▇▇▇▇▇▇ Engineers, Inc. (▇▇▇▇▇▇▇) and ▇▇▇▇▇▇ Environmental Consulting, LLC (Corona) completed preliminary design and began final design for Cr6 treatment at selected City wells when the Cr6 MCL was originally set in 2014. After the MCL was invalidated in 2017 for administrative reasons, the City put the final design project on hold in approximately June 2017, pending new promulgation of the MCL. For this project, current raw water quality, current water production data, and the updated 2020 Urban Water Management Plan future water demands must be used as the project basis. Additionally since 2017, the City has developed a new water distribution system hydraulic model, completed various planning projects including a water system condition assessment and Capital Improvements Plan update, as well as implemented infrastructure improvements such as sewer and water piping upgrades, a new well, and plans for a new Zone 2 tank. Hence, updated preliminary design information is needed to establish the Cr6 treatment approach to achieving regulatory compliance while also incorporating the City’s current infrastructure needs. The City’s ▇▇▇▇▇ proposed to be evaluated with the current Project are: • ▇▇▇▇▇ 2 and 3 (Pressure Zone 1) • ▇▇▇▇▇ 7, 10 (if needed) and 15 (Pressure Zone 1) • ▇▇▇▇▇ 14, 17, 18 and if needed, new Well 4 on ▇▇▇▇▇▇ Road (Pressure Zone 2) • Well 19 (Pressure Zone 3) The previous evaluations and deliverables that are currently scoped for reevaluation and updating are summarized below. Previously, the ▇▇▇▇▇ affected by the 2014 Cr6 MCL were ▇▇▇▇▇ 2, 3, 7, 14, 17 and 18. Various treatment and blending alternatives were evaluated during preliminary design and concurrent pilot studies, which resulted in a Draft Preliminary Design Report (June 2016) and Draft Engineering Report (November 2016). By early final design (circa April 2017), Cr6 treatment with Reduction Coagulation Filtration (RCF) technology was anticipated to be located at or near ▇▇▇▇▇ 2, 3, 14, 17, and 18. Additionally, blending of ▇▇▇▇▇ 14, 17 and 18 in lieu of RCF was being considered during final design. Blending of Well 7 water with Well 15 water was recommended during final design in lieu of RCF treatment, while blending water from ▇▇▇▇▇ 7, 10 and 15 had originally been considered during preliminary design. Evaluation of a new compliance approach for Well 19, located at the City’s Corralitos Filter Plant, has been added to the current project scope (Optional Services) due to recently detected Cr6 levels. The current project scope will be conducted through the tasks as summarized in Table 1 and detailed in the following task descriptions. The effort will be conducted by ▇▇▇▇▇▇▇ and ▇▇▇▇▇▇▇’▇ Subconsultants including Corona for process evaluation and Beecher Engineering, Inc. (BEI) for electrical, instrumentation and controls evaluation. Additional Subconsultants for geotechnical evaluation, surveying, CEQA analysis and environmental permitting, funding support, architecture, or public outreach support are not currently anticipated to be needed in Phase 1 but could be engaged later as Optional Services in Phase 1 or deferred to Phase 2 Final Design. The primary objective of Phase 1 Preliminary Design Reevaluation services is to provide the City with an updated preliminary design construction cost estimate for budgeting and funding application support purposes. Additionally, the culmination of Phase 1 is to provide sufficient technical information within a collated project deliverable format, for e.g. State Water Boards Drinking Water State Revolving Fund (DWSRF) Technical Application’s Engineering Report, for the City to pursue project funding for construction of Cr6 treatment facilities and related site improvements, blending facilities, and related pipeline infrastructure improvements such as new raw water supply pipelines, sewer upgrades, and/or distribution system pipeline upgrades. Engineering services for the overall project are proposed to be executed in two phases. This scope of services is for Phase 1 of the project (preliminary design). A scope of work for the next phase of final design is anticipated to be prepared as requested by the City following completion of Phase 1 tasks.