36-inch Transmission Main Replacement

2 Documents in Project


SCH Number
Lead Agency
Sweetwater Authority
Document Title
36-inch Transmission Main Replacement
Document Type
MND - Mitigated Negative Declaration
Present Land Use
public ROW; OS; Park/recreation

Document Description
The project involves the installation of approx 16,500 lf of water transmission main and the abandonment of the existing main within the Sweetwater River valley. The majority of the transmission main would be installed within proximity to the existing alignment, while some portions would be realigned. The majority of the new main would remain 36 inches in diameter, with the exception of a 3,100-ft reach that would be upsized to 48 inches. Installation of the new main would occur first, followed by the abandonment of the existing main by filling with concrete slurry or similar material. Construction would be accomplished primarily through open trenching, while jack and bore method would be utilized for a storm drain crossing along a limited portion of segment 1. Construction staging areas would be used for temporary storage of material.

Contact Information
Luis Valdez
Sweetwater Authority
Lead/Public Agency
505 Garrett Avenue
Chula Vista, CA 91910

Phone : (916) 422-8395


32°39'30"N 117°2'30"W
Chula Vista
San Diego
Cross Streets
Bonita Rd and Willow St
Total Acres
Parcel #
State Highways
I-805, Hwy 54 & 125
Sunnyside ES, etc.
Sweetwater River
Other Location Info

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (Type main replacement)
Local Action
governing board
Project Issues
Biological Resources Cultural Resources Cumulative Effects Hydrology/Water Quality Transportation Vegetation
Reviewing Agencies
California Department of Fish and Wildlife, South Coast Region 5 (CDFW) California Department of Parks and Recreation California Highway Patrol California Native American Heritage Commission (NAHC) California Regional Water Quality Control Board, San Diego Region 9 (RWQCB) California State Lands Commission (SLC) Department of Water Resources Office of Historic Preservation Resources Agency State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Drinking Water, District 14 State Water Resources Control Board, Division of Water Quality State Water Resources Control Board, Division of Water Rights California Department of Transportation, District 11 (DOT)

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, 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.

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