Porteous Tunnel Pipeline Replacement Project

Summary

SCH Number
2020090401
Lead Agency
Marin Municipal Water District
Document Title
Porteous Tunnel Pipeline Replacement Project
Document Type
NOE - Notice of Exemption
Received
Posted
9/21/2020

Document Description
The Porteous Tunnel Emergency Pipeline Replacement Project will include maintenance, repair, and minor alterations to the Porteous Tunnel facilities and replacement of approximately 250 feet of pipeline to ensure continued supply of safe drinking water to Ross Valley. Specific project activities include minor grading of two existing access roads to facilitate construction access, improvements to the tunnel structure, replacement of a damaged pipeline, and the installation of pipeline appurtenances (blow-offs, valves, etc.). The Project will not expand system use or capacity.

Contact Information
Michael Ban
Marin Municipal Water District
220 Nellen Ave
Corte Madera, CA 94925

Phone : (415) 945-1435

Location

Cities
Fairfax
Counties
Marin
Parcel #
197-120-04
Other Location Info
Marin Municipal Water District Watershed Lands

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Section 15301 (b) "Existing Facilities" (Class 1), CEQA Guidelines Section 15302 (c)
Reasons for Exemption
The Project is exempt under CEQA Guidelines Section 15301 (b) as it includes the operation, repair, and minor alteration of existing public facilities involving no expansion of use. The Project is also exempt under CEQA Guidelines Section 15302 (c) because it will replace or reconstruct an existing utility in the same location and with the same purpose and capacity as the structure being replaced. The Project is exempt under CEQA Guidelines Section 15269 (b) because it involve emergency repairs to publicly owned service facilities necessary to maintain essential public health, safety and welfare.

Attachments

Notice of Exemption
2020090401_Porteous Tunnel Pipeline Replacement Project   PDF 1310 K

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