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Project cost: $272,217 Source of funding: Water Connection Fees (25%) and Water Replacement Fund (75%) % funded by development impact fees: 25% • Water Quality Improvements at Lower Zone Storage Tanks — Project #20156 Description: The City's water system currently experiences some areas of nitrification. Staff has utilized short term operating practices to address this issue, but a more reliable long-term solution is required. The primary area of nitrification occurs in the lower zone around the Foothill Tank service area. This project will pilot the use of a chemical residual boosting and mixing system at the Foothill Tank to mitigate nitrification. If successful, this system will be implemented permanently at the Foothill Tank and potentially other locations. Approximate project completion date: 2023 Project cost: $1,921,732 Source of funding: Water Connection Fees (14%) and Water Replacement Fund (86%) % funded by development impact fees: 14% Sewer Expansion Fund (432) • Sewer Capacity Evaluation — Project #16245 Description: This project is a general capacity study of the City's sewer collection system to confirm proper sizing of sewer piping, pump stations and other facilities. The findings will be integrated into the Sewer System Management Plan, and include focused evaluations for East Amador Trunk Sewer, East Amador Relief Sewer, East Pleasanton Specific Plan, Ruby Hill, and Commerce Circle service areas. Integration with the Vineyard service area evaluation will be included. This project will create a hydraulic model of the sewer system which will be updated to reflect changes and evaluate adequacy of proposed changes to the system. Approximate project completion date: 2023 Project cost: $700,000 Source of funding: Sewer Connection Fees (25%); Sewer Replacement Fund (75%) % funded by development impact fees: 25% • Del Valle Parkway/Nevada Street Sewer Additions — Project #90228 Description: Installation of a 16" sewer main line from Stanley Blvd to Bernal Avenue. Approximate project completion date: 2025 Project cost: $1,222,700 Source of funding: Sewer Connection Fees (57%) and Sewer Replacement Fund (43%) % funded by development impact fees: 57% Page 7 of 8.