East County Advanced Water Purification Project

6 Documents in Project


SCH Number
Lead Agency
Padre Dam Municipal Water District
Document Title
East County Advanced Water Purification Project
Document Type
NOD - Notice of Determination
Document Description
The San Diego Regional Water Quality Control Board issued a Clean Water Act section 401 water quality certification (Certification No. R9-2022-0141) to the Project Applicant to construct an approximately 15 million gallons per day water recycling treatment system to create a sustainable supply of drinking water for the East County area. The project includes facility upgrades and new facilities, including pipelines from the recycling facility to Lake Jennings and to the South Mission Valley Trunk Sewer interceptor. The pipelines will be installed by open-cut trenching, trenchless, or sliplining construction methods and the Lake Jennings facilities will be constructed in a dry work area after the Lake's water levels are drawn down and by scuba divers. Temporary impacts to jurisdictional aquatic resources will be restored to pre-project contours and revegetated with native species. Permanent impacts will be mitigated through the purchase of mitigation bank credits from the San Luis Rey Mitigation Bank.

Contact Information

Lisa Honma
Agency Name
RWQCB - San Diego Region
Job Title
Environmental Scientist
Contact Types
Responsible Agency

Kyle Swanson
Agency Name
East County Advanced Water Purification Joint Powers Authority
Job Title
CEO/General Manager
Contact Types
Project Applicant


San Diego, Santee
San Diego
Southern California
Cross Streets
Fanita Pkwy and Mast Blvd.
Total Acres
State Highways
SR 52, 125, 67, and I-8/I-15
San Diego River, Lake Jennings
Other Location Info
A new water recycling facility and 109,794 feet of underground water pipelines from Ray Stoyer Water Recycling Facility at Santee Lakes to Lake Jennings (includes outfall structures to the Lake) and to the South Mission Valley Trunk Sewer Interceptor near I-8/I-15 interchange.

Notice of Determination

Approving Agency
RWQCB - San Diego Region
Approving Agency Role
Responsible Agency
Approved On
County Clerk
San Diego
Final Environmental Document Available at
The office of the Lead Agency. The record associated with the San Diego RWQCB’s decision is available at 2375 Northside Drive, Ste. 100, San Diego CA 92108, ph. 619-521-1990 (Electronic File No./PIN 882577)


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA


Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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