Mountain Tunnel Improvements Project

2 Documents in Project


SCH Number
Lead Agency
San Francisco, City and County of (City and County of San Francisco)
Document Title
Mountain Tunnel Improvements Project
Document Type
NOD - Notice of Determination
Project Applicant
San Francisco Planning Department

Document Description
The San Francisco Public Utilities Commission (SFPUC) is proposing the Mountain Tunnel Improvements Project (project) to improve the condition of the existing Mountain Tunnel, and to ensure the tunnel's continued ability to reliably convey water to its 2.7 million customers in the Sierra foothills and San Francisco Bay Area. The project is in the central Sierra Nevada Mountain Range near the town of Groveland in Tuolumne County. The tunnel begins at Early Intake Reservoir on the Tuolumne River and extends approximately 19 miles west to Priest Reservoir, near the town of Groveland. Conditions in the tunnel interior vary along the alignment, with unlined sections on the east and concrete-lined sections on the west. See NOD for Full Details.

Contact Information
Timothy Johnston
San Francisco Planning Department
1650 Mission St. Suite 400
San Francisco, CA 94103

Phone : (415) 575-9035


San Francisco

Notice of Determination

Approving Agency
San Francisco Planning Department
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at
San Francisco Planning Department, 1650 Mission Street, Suite 400, San Francisco, CA 94103 in Case File no. 2017.014249ENV.


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA


Notice of Determination
2019079057_Mountain Tunnel   PDF 1377 K

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