Lake llsanjo Dam - Outlet Pipe and Slide Gate Valve Replacement

Summary

SCH Number
2019100125
Lead Agency
Parks and Recreation, Department of (California Department of Parks and Recreation)
Document Title
Lake llsanjo Dam - Outlet Pipe and Slide Gate Valve Replacement
Document Type
NOE - Notice of Exemption
Received
Posted
10/4/2019
Project Applicant
Bay Area District

Document Description
Replace the outlet pipe and slide gate valve at the Lake llsanjo Dam in Trione-Annadel State Park to ensure the ability to release water on an as needed basis. Work will: • Over a period of weeks, slowly lower the lake water level 5 to 10 feet; • Replace the existing sliding gate valve on the lake side of the dam with a new valve of the same model; • Install a new 12-inch secondary gate valve on the downstream face of the dam; • Replace and install a new approximately 20-foot long, 12-inch diameter, steel pipe anchored with straps, saddles, stakes, and/or soil; • Replace/install rip-rap at the pipe outlet for use as an energy dissipator; and • Use a liquid urethane coating (or egual) to seal cracks in the gunite surface of the dam face.

Contact Information
Cyndy Shafer
Department of Parks and Recreation
845 Casa Grande Road
Petaluma, CA 94954

Phone : (707) 769-5652
Cyndy.Shafer@parks.ca.gov

Location

Counties
Sonoma
Other Location Info
Trione-Annadel State Park

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class: 1 & 4 Section: 15301 & 15304
Reasons for Exemption
Project consists of the repair, maintenance and minor alterations of existing public or private structures, facilities, involving negligible or no expansion of use beyond that of current levels and minor public or private alterations in the condition of land which do not involve the removal of healthy, mature, scenic trees.

Attachments

Notice of Exemption
2019100125 TASP Lake Ilsanjo Dam_Dept of Parks and Recreation_10-4-19   PDF 335 K

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