Lower Tiger Creek Canal Station 51+00 Foundation Erosion Protection
Summary
SCH Number
2024100286
Public Agency
State Water Resources Control Board
Document Title
Lower Tiger Creek Canal Station 51+00 Foundation Erosion Protection
Document Type
NOE - Notice of Exemption
Received
Posted
10/8/2024
Document Description
On September 20, 2024, the Pacific Gas and Electric Company (PG&E) submitted a Notice of Intent to enroll the Lower Tiger Creek Canal Station 51+00 Foundation Erosion Protection (Project) under the Water Quality Order WQ 2023-0061-DWQ Clean Water Act Section 401 Water Quality Certification for Regional General Permit 8 for Emergency Repair and Protection Activities. The purpose of the Project is to provide interim protection of the Lower Tiger Creek Canal foundation prior to the 2024-2025 wet season to prevent continued erosion of the concrete footings that support the canal while a permanent solution is developed and implemented. The Project includes reestablishing access through an abandoned trail from Salt Springs Road down to the canal, temporarily diverting creek flows around the work area, and installing rip rap for erosion protection. PG&E anticipates the Project taking three weeks to complete, beginning as soon as possible in October 2024.
Contact Information
Name
Savannah Downey
Agency Name
State Water Resources Control Board
Job Title
Senior Environmental Scientist (Specialist)
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Cities
Jackson
Counties
Amador
Regions
Countywide, Northern California, Unincorporated
Cross Streets
Salt Springs Road and Tiger Creek Road
Waterways
Tiger Creek
Notice of Exemption
Exempt Status
Statutory Exemption
Type, Section or Code
Sec. 21080(b)(2)
Reasons for Exemption
The Project is exempt under section 21080, subdivision (b)(4) for specific actions necessary to prevent or mitigate an emergency. The purpose of the Project is to address erosion of the concrete footings that support the canal in order to prevent failure of the canal, which would cause damage to property and essential public services. As stream flows increase during the wet season, the potential for additional erosion and risk of canal collapse increases. If the canal fails, water and sediment would flow at a high rate into the drainage and then Tiger Creek, causing damage to property and the environment. In addition, if the canal fails, no power can be generated at the Tiger Creek Powerhouse in order to serve customers in Amador County.
Attachments
Notice of Exemption
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