2025 Petaluma Creeks Interim Maintenance Project (Lake or Streambed Alteration Agreement No. EPIMS-SON-60093-R3)
3 Documents in Project
Summary
SCH Number
2017012024
Lead Agency
City of Petaluma
Document Title
2025 Petaluma Creeks Interim Maintenance Project (Lake or Streambed Alteration Agreement No. EPIMS-SON-60093-R3)
Document Type
NOD - Notice of Determination
Received
Posted
10/24/2025
Document Description
The California Department of Fish and Wildlife (CDFW) has executed Lake and Streambed Alteration Agreement (EPIMS-SON-60093-R3), pursuant to Fish and Game Code section 1602, the project Applicant, City of Petaluma.
The project is limited to vegetation and sediment removal at six different locations. Vegetation management will include selective pruning, trimming, clipping, mowing, and/or removal of overgrown vegetation and trees that would not reduce canopy cover by more than 5 percent. The focus of vegetation management would mainly be on understory vegetation removal such as nonnative blackberry, shrubs, fallen trees and branches, and selective removal of poor health and structure trees mainly within the instream channel and lower banks. Targeted grazing within the project area will be used to manage the vegetation understory. Up to 25 trees may require removal. Vegetation management also includes the removal or relocation of fallen trees, which include dead or dying trees. Where feasible, downed or felled logs will be relocated and placed onsite. Invasive and exotic species removed will be disposed of appropriately offsite. Sediment removal activities include targeted removal at bridge crossings, culvert outfalls, and where instream bars significantly reduce channel cross section area and conveyance capacity.
The project also includes the in-kind replacement of three culverts at the Lynch Creek Reach 4, East Washington Creek Reach 1, and Thompson Creek Reach 1 locations. Culvert replacements will be the same dimensions as existing culverts and take place exclusively within the existing culvert footprints.
The project will result in approximately 4,745 linear feet of temporary impacts to riparian habitat. The project will also result in the removal of up to 25 riparian trees. No new permanent impacts will occur as part of this project. Access and staging will occur via existing roads and developed multi-use trails.
Contact Information
Name
James Hansen
Agency Name
CA Department of Fish and Wildlife
Job Title
Environmental Scientist
Contact Types
Responsible Agency
Phone
Name
Oriana Hart
Agency Name
City of Petaluma
Job Title
Lead Agency Contact
Contact Types
Lead/Public Agency
Phone
Email
Location
Cities
Petaluma
Counties
Sonoma
Regions
San Francisco Bay Area
Other Location Info
The project is located at Corona Creek, Lynch Creek, East Washington Creek, McDowell Creek, Thompson Creek, and an unnamed tributary to Adobe Creek, within the City of Petaluma, in the County of Sonoma, State of California.
Notice of Determination
Approving Agency
CA Department of Fish and Wildlife
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Sonoma
Final Environmental Document Available at
The Mitigated Negative Declaration prepared for the project is available to the general public at the office location listed above for the Lead Agency. CDFW’s record of project approval as a Responsible Agency is available at CDFW’s regional office.
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
No
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
No
Attachments
Notice of Determination
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