Mosier Rock Quarry: Removal of Boulders in Matilija Creek


SCH Number
Lead Agency
Fish & Game #5
Document Title
Mosier Rock Quarry: Removal of Boulders in Matilija Creek
Document Type
NOE - Notice of Exemption

Document Description
The Operator intends to alter the streambed by removing rocks and boulders which fell into the creek in a land slide in February 2006. The rock and boulders will be removed with a crane, from the top on the bank, along Highway. The boulders which are too large to remove in one piece, will be blown up with the use of explosives, then the pieces will be removed. The major portion of the rock is located on the upstream portion of the quarry, with a few individual rocks downstream. The rock is blocking steelhead migration, and causing the water to under cut the Highway. Steelhead are present in a pool immediately upstream of the rocks, and throughout the site. DFG biologist Mary Larson will be involved with the relocation of fish just prior to the rock removal and blasting. The area consists of willow riparian, with alders and bay trees. All of the work shall be done from the top of the bank, with some minor pruning of vegetation. The creek flows in between the quarry and the Highway. SAA# 1600-2006-0107-R5

Contact Information
Natasha Lohmus
Department of Fish and Game, Region 5
4949 Viewridge Avenue
San Diego, CA 92123

Phone : (805) 684-6281



Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Section 15301
Reasons for Exemption
Maintenance of existing channel, not expanding its use.

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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