Lake 20 Culvert Repair

2 Documents in Project


SCH Number
Public Agency
California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)
Document Title
Lake 20 Culvert Repair
Document Type
NOE - Notice of Exemption
Document Description
Following a period of heavy rainfall beginning on 10/24/2021, damage to a culvert at post mile 18.5 on State Route 20 resulted in undermining of a Lake County utility infrastructure and posing a threat to private property. The scope of work includes replace/repair the failed culvert; modify the outlet to protect the private property foundation; and reconstruct the roadway.

Contact Information

Shawn Agarwal
Agency Name
Central Valley Water Board
Job Title
environmental scientist
Contact Types
Lead/Public Agency


State Highways
State Route 20 at post mile 18.5

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1:15301, Existing Facilities
Reasons for Exemption
The project is exempt because it will not have a significant effect on the environment due to unusual circumstances, it does not damage a scenic resource, it is not on the "Cortese List", there will not be significant adverse impacts on endangered, rare, or threatened species or their habitat, and it does not cause a substantial adverse change in the significance of historical resources.
County Clerk


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