PG&E Gas Line 021G Replacement Project (L 021G/R-708) Across the Petaluma River

4 Documents in Project


SCH Number
Lead Agency
California State Lands Commission
Document Title
PG&E Gas Line 021G Replacement Project (L 021G/R-708) Across the Petaluma River
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Open Space
Document Description
The Project would consist of the replacement of the existing 021G natural gas pipeline. Approximately 1,852 feet of 16-inch-diameter steel replacement pipeline (R-708) would be installed (492 feet in upland locations using open trench and backfill methods and 1,360 feet under the Petaluma River by the horizontal directional drilling methods) adjacent to the existing pipeline. Two approximately 368-foot parallel sections of the existing 12-inch-diameter steel pipeline (021G) and driplines would then be removed from beneath the Petaluma River, and 1,278 feet of the existing 16-inch-diameter natural gas pipeline and 2,690 feet of 0.75-inch dripline (in upland locations) would be retired in place.

Contact Information

Cynthia Herzog
Agency Name
California State Lands Commission
Job Title
Senior Environmental Scientist
Contact Types
Lead/Public Agency


Northern California
Cross Streets
North Area: South McDowell Boulevard at Shollenberger Park Road; Southern Area: Petaluma Bouleva
Total Acres
Parcel #
017-170-001-000, 019-320-007-000
State Highways
U.S. Highway 101, SR 1
See other information
Petaluma River
4 N
7 W
Other Information
Schools within 2 miles: • Bridge Haven School • Cypress Secondary School • River Montessori Charter School • Harvest Christian School • Miwok Valley Charter School • The Spring Hill School • Grant Elementary School • Mc Near Elementary School • Valley Oaks School • Crossroads Alternative School • Live Oak Charter School • La Tercera Elementary School • Mc Dowell Elementary School

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of State Parks, Division of Boating and Waterways, California Department of Transportation, District 4 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Energy Commission, California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), Department of Toxic Substances Control, Office of Historic Preservation, San Francisco Bay Conservation and Development Commission (BCDC), State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights, California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)
State Reviewing Agency Comments
California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)
Development Types
Other (Gas pipeline replacement)
Local Actions
Use Permit
Project Issues
Air Quality, Biological Resources, Cultural Resources, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Mandatory Findings of Significance, Recreation, Transportation, Tribal Cultural Resources, Wildfire
Local Review Period Start
Local Review Period End


Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from state reviewing agencies]

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, 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. For more information, please visit OPR’s Accessibility Site.

Download CSV Download All Attachments New Search Print