Brown and Caldwell Inc. 3/3/2021 Amendment 2

EXHIBIT A Scope of Work City of Everett Contract No. 153983 Water Filtration Plant Facility Plan Contract Amendment Scope of Services Everett Water Filtration Plant Facility Plan Amendment 2 Project Understanding The City of Everett Water Filtration Plant(WFP) is located adjacent to Lake Chaplain approximately 16 miles east of Everett, WA. The WFP provides water for over 600,000 people, which is approximately 75%of the population of Snohomish County. This critical piece of infrastructure supports the water supply in the north Puget Sound area and its continued operation is vital for the wellbeing of area residents and the economy of the City of Everett. The previous Facility Plan for the WFP was completed in 2002, and the City has identified a need to develop an updated plan that addresses critical capital project needs and capital planning for the WFP. This Facility Plan will focus on assessing the WFP's existing infrastructure,facility resiliency and reliability, and the ability of the WFP to meet future water quality regulations. The project deliverable will be a Facility Plan that includes an evaluation of the existing infrastructure and recommended CIP for plant improvements that meets WAC 246-290. Scope of Work Summary and Work Breakdown Structure The Consultant scope of work for the Project includes 16 tasks, which are identified in the following table, including new Tasks 112-115 added under Amendment 2. Facility Plan Tasks Task 101 Condition and Criticality Assessment Task 102 Resiliency,Reliability,and Redundancy Assessment Task 103 Solids DewateringTechnologyAssessment Task 104 Regulatory and Water Quality Assessment Task 105 Unit Process Performance Assessment Task 106 Hydraulic Profile Assessment Task 107 Capital Improvement Program Development Task 108 Facility Plan r — Task 109 Project Management Task 110 Quality Assurance and Control Task 111 Unidentified Services Task 112 As-Requested Technical Services(NEW in Amendment 2) Task 113 Hypochlorite Dosing System Evaluation and Alternatives (NEW in Amendment 21 Task 114 WFP Operations and Maintenance Manual Update Support(NEW in Amendment 2)