CAROLLO ENGINEERS, INC. 3RD AMENDMENT (#2022494)

PAGE Ͱ of ͳ In this chapter of the WSMP, Carollo will review and summarize key findings within the City’s current planning efforts including, but not limited to, the ͮͬͮͬ Urban Water Management Plan, ͮͬͮͮ Water Capacity Evaluation (i.e., distribution capacity), and ͮͬͮͭ Risk and Resiliency Assessment. Carollo will also identify any planning gaps for the water system program and recommend/prioritize additional studies to be performed within the next Ͳ years. The City has already identified the following planning gaps which will be performed by Carollo under this initial WSMP due to their high priority. Asset Renewal and Replacement Water Facilities ‐ Carollo will review and analyze existing information provided by the City to develop a register of water facilities (e.g., wells, turnouts, pump stations, reservoirs, pressure reducing stations, etc.). The register will contain key attributes for each facility such as original construction date, major rehabilitation dates, size/capacity, replacement value and other key parameters determined to be necessary for analysis. Carollo will then conduct a desktop evaluation that utilizes a risk‐based prioritization approach that factors age, criticality and operator known areas of concern to establish a time based, rehabilitation priority ranking profile of all facilities. For facilities identified as high priority, Carollo will then conduct a field condition assessment using a multi‐discipline team of civil, mechanical, structural, electrical, and instrumentation specialists. During the site visits, Carollo will discuss maintenance and operations history with staff familiar with each facility. The assessment team will note potential problems, such as structural deterioration, electrical and instrumentation issues, mechanical degradation, safety issues, and recommend rehabilitation needs. For purposes of budgeting, Carollo assumes three days of field assessments. The facilities targeted for assessment will be determined based on desktop prioritization including discussions with City staff. The field condition assessments will be used to confirm the priority rankings and further define the scope of improvements for the high priority facilities. Water Distribution Mains – Carollo will conduct a desktop evaluation that utilizes a risk‐based prioritization approach that factors pipe age, pipe material, criticality, and operator known areas of concern to establish a time based, renewal and replacement priority ranking profile for the City’s water distribution mains. Carollo will utilize existing information provided by the City via their GIS database to conduct this desktop evaluation. Carollo will document findings and recommendations in this chapter of the WSMP. Regulatory Review Carollo will summarize current and upcoming regulations that will impact the City’s water system program during the span of the initial WSMP plan (i.e., Ͳ years). For each regulation, Carollo shall provide a summary of the requirements, compliance timing, City’s current compliance outlook, and recommend prioritized actions to achieve future compliance. Carollo will document findings and recommendations in this chapter of the WSMP. Task 9 – Operations and Maintenance General In this chapter of the WSMP, Carollo will review, summarize, and identify deficiencies/gaps with the City’s current O&M practices and programs. Review will include, but not be limited to, those O&M practices and programs shown in Attachment ͭ. Carollo will recommend a prioritized list of O&M practice and program improvements with estimated implementation costs for each. This list shall integrate O&M related recommendations made from the various planning efforts discussed in Task ʹ. The prioritized improvements will be grouped into short‐term implementation (i.e., within next ͱ years) and long‐term implementation (i.e., ͱ+ years). Short‐term implementation will include readily identifiable, high‐risk areas Docusign Envelope ID: 271FE856-C5AE-4E67-BBDD-ED81F3311151