Mt. Shasta Sewer Interceptor Improvements Culvert Replacement Project
Summary
SCH Number
2022060489
Public Agency
California Regional Water Quality Control Board, Central Valley Redding Region 5
(RWQCB)
Document Title
Mt. Shasta Sewer Interceptor Improvements Culvert Replacement Project
Document Type
NOE - Notice of Exemption
Received
Posted
6/22/2022
Document Description
The proposed Project will replace a 40-foot- long, 48-inch diameter culvert with
a new 40-foot-long arch culvert, with an arch measurement of 57 inches by 38 inches. The existing inlet headwall will be retained and raised by approximately
2 feet. The existing outlet headwall will be replaced at approximately 5 feet deeper than it is at present. The void behind the new headwalls will be filled with compacted base on top of slurry backfill. Riprap will be placed at the culvert outlet as an energy dissipator. The riprap will be placed 24 feet wide by 11 feet in length, and 2 feet deep; approximately 15 feet by 10 feet of the riprap will be within the ordinary high-water mark.
Contact Information
Name
Lynn Coster
Agency Name
Central Valley Regional Water Quality Control Board
Job Title
Senior Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Cities
Mount Shasta
Counties
Siskiyou
Regions
Northern California
Township
40 N
Range
4 W
Section
21
Base
MDB&M
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Title 14, Article 19, Section 15301, Existing Facilities
Reasons for Exemption
This project is Categorically Exempt under CEQA section 15301 because the project involves minor repair of existing facilities with no expansion of use.
Attachments
Notice of Exemption
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