Sewer Line Installation on Unnamed Tributary to Grayson Creek


SCH Number
Public Agency
Hueneme School District
Document Title
Sewer Line Installation on Unnamed Tributary to Grayson Creek
Document Type
NOE - Notice of Exemption
Document Description
As part of construction of a single family home, the operator proposes to install a 4 inch sewer line and 8 inch outfall pipe on an unnamed tributary to Grayson Creek behind the residence of 3113 Withers Avenue in Lafayette, Contra Costa County. The 8 inch pipe will be anchored into the bank and discharge onto loose rock riprap keyed in at the toe. The amount of riprap will not exceed 15 square feet. A trench one foot wide and 4-5 feet deep will be cut perpendicular to both banks and the sewer line will be tied into the existing sewer line on the opposite side of the creek. The trench will be backfilled with native soil. Issuance of a Streambed Alteration Agreement Number R3-2001-0138 pursuant to Fish and Game Code Section 1603.

Contact Information

Greg Martinelli
Agency Name
Department of Fish and Game, Region 3
Contact Types
Lead/Public Agency


Contra Costa

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 4; Section 15304
Reasons for Exemption
Minor alteration of land.

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 or via phone at (916) 445-0613.

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