Search EPA NEPA Compliance Documents
NEPA Details
Title
Categorical Exclusion for the City of Sunnyvale¿s Cleanwater Program Phase 2 ProjectDocument Number
N2020021Document Type
CATEXProject Description
The Cleanwater Program Phase 2 project is a rehabilitation project of the Sunnyvale Water Pollution Control Plant (WPCP), which includes the following components: 1) Treatment Facility Rehabilitation: rehabilitation of the WPCP's existing secondary and tertiary treatment facilities. Major elements of the rehabilitation work include: ¿ Reline and/or replace influent pipelines up to 48-inch diameter that convey raw sewage to the WPCP; ¿ Reline the 66-inch-diameter primary effluent pipeline that conveys primary wastewater to the oxidation ponds; ¿ Rehabilitate two of three 92-foot-diameter fixed growth reactors (FGRs) that nitrify wastewater after the oxidation ponds; ¿ Rehabilitate two of four 60-foot-diameter air flotation tanks (AFTs) that remove algae and other suspended solids produced during secondary treatment; ¿ Replace equipment in the four 960-square-foot dual media filters (DMFs) that remove suspended solids from the final effluent; ¿ Repair concrete, replace mechanical equipment, and seismically strengthen the four chlorine contact tanks (CCTs) that disinfect the wastewater prior to discharge or reuse. 2) New Secondary and Bio-solids Treatment Facilities: construction of new secondary and solids handling treatment facilities project, including new conventional activated sludge treatment facilities, a maintenance building, a thickening and dewatering facility, a floodwall, a standby generator and fuel tank, and electrical and piping improvements; 3) New Support Facilities: reconstruction of support facilities necessary to operate the plant, including a new administration and laboratory Building; 4) Facility Demolition: The existing primary sedimentation basins, maintenance shop, administration building, and primary control building would be demolished.EPA Region/Headquarters Office
HQState or Territory
CAPoint of Contact
Ashley Longrie202-564-1935
longrie.ashley@epa.gov
Date of Issuance
2020-10-27 00:00:00.0Website
https://www.epa.gov/wifiaYou will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more. If you need help accessing these PDF documents, please contact NEPAdatabasesupport (NEPAdatabasesupport@epa.gov) for assistance.
NEPA Document(s):WIFIA NEPA CATEX Review Form_Sunnyvale_102620.fs.pdf (4 pp, 332.4111328125 K)