San Diego Pipeline No. 4 Shutdown Dewatering (LSA No. 1600-2020-0019-R6)


SCH Number
Lead Agency
Fish and Wildlife, Region 5 - South Coast, San Diego (California Department of Fish and Wildlife, South Coast Region 5)
Document Title
San Diego Pipeline No. 4 Shutdown Dewatering (LSA No. 1600-2020-0019-R6)
Document Type
NOE - Notice of Exemption
Project Applicant
Jennifer Harriger

Document Description
The California Department of Fish and Wildlife (CDFW) has executed a Lake and Streambed Alteration Agreement number 1600-2020-0019-R6, pursuant to Section 1602 of the Fish and Game Code to MWD as represented by Ms. Jennifer Harriger. The Project includes the shutdown and dewatering of the San Diego Pipeline No. 4. beginning at station 1195+15 and continuing downstream, along the pipeline, through station 1583+65. Project activities in the stream areas include the placement of erosion control measures and the release of water into jurisdictional areas from six (6) discharge locations to Tucalota Creek, Saint Gertrudis Creek, Murrieta Creek, and unnamed tributaries of these creeks. Methods include releasing water via blow-off structures or pumping water from pump well structures; diverting water through dissipation socks or dewatering hoses; and discharging the water to stream areas. The empty pipeline will then be inspected and maintained. The LSA is limited to impacts as a result of dewatering to and within Tucalota Creek, Saint Gertrudis Creek, Murrieta Creek.

Contact Information
Megan Evans
Department of Fish and Wildlife
3883 Ruffin Road
San Diego, CA 92123

Phone : (805) 524-0900


Other Location Info
The project is located along the San Diego Pipeline No. 4 within a 7 mile area. Four dewatering locations are within 2.0 miles of Lake Skinner Treatment Plant, one location is 3.3 miles East of Murrieta Hot Springs, and one location is less than 1.0 mile South of the town of Temecula. The entire project is in the County of Riverside, State of California.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
Class 1 consists of the operation, repair, maintenance, permitting, leasing, licensing, or minor alteration of existing public or private structures, facilities, mechanical equipment, or topographical features, involving negligible or no expansion of use beyond that existing at the time of the lead agency's determination.


Notice of Exemption
2020020613_1600-2020-0019-R6 NOE   PDF 406 K

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