Operation of City of San Diego - Decommission and replace Clearwell No. 2 at Miramar Water Treatment Plant Project

SCH Number: 1999091067
Lead Agency: San Diego, City of (City of San Diego)
Document Title: Operation of City of San Diego - Decommission and replace Clearwell No. 2 at Miramar Water Treatment Plant Project
Document Type: NOD - Notice of Determination
Received: 12/27/2018
Posted: 12/27/2018
Present Land Use: Water Treatment Plant and reservoir; Agricultural - Residential AR1-1.

Document Description: The City proposed Project will replace the previously existing concrete rectangular semi-buried Clearwell-2 and its associated pipelines and appurtenances. The Project construction area is 6.5 acres within the MWTP property immediately south of Miramar Lake and within the Scripps Miramar Ranch Community Plan area. The previously existing Clearwell-2 has been removed and at 1.95 MG, it was of greater capacity than the proposed facility. The new Clearwell-2 and the overall project will serve both current and project populations. The proposed new 29.5-MG Clearwell-2 reinforced concrete storage facility will be constructed with 391' x 420' dimensions and at approx. 26-28' depth with hopper bottoms and a 1V:3H slope. Approximately 75% of the project site will be graded within a 712-720 ft elevation range to slope away from the clearwells and buildings in all directions. Staging for the project will be located within the MWTP property fence line. Land adjacent to the project site includes Miramar Lake recreation Area to the north, Scripps Ranch Library and Miramar Ranch Elementary School to the south, and commercial, industrial and residential areas to the west.

Contact Information: Sean Sterchi
SWRCB
San Diego District 1350 Front Street, Rm 2050
San Diego, CA 92101
Phone : (619) 525-4159

(1) The project will have a significant impact on the environment: No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA: Yes
(2b) A Negative Declaration was prepared for this project pursuant to the provisions of CEQA: No
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA: No
(3) Mitigated measures were made a condition of the approval of the project: No
(4) A mitigation reporting or monitoring plan was adopted for this project: N/A
(5) A Statement of Overriding Considerations was adopted for this project: No
(6) Findings were made pursuant to the provisions of CEQA: Yes