PG&E Transmission Pipeline L-114 Replacement Project


SCH Number
Lead Agency
East Contra Costa County Habitat Conservancy
Document Title
PG&E Transmission Pipeline L-114 Replacement Project
Document Type
MND - Mitigated Negative Declaration
Project Applicant
Pacific Gas and Electric Company (PG&E)

Document Description
The proposed project involves the installation of a new 2,000-foot-long, 24-inch-diameter natural gas transmission pipeline to replace an existing 22-inch natural gas pipeline. The existing natural gas pipeline, which is referred to as Line 114 (L-114) was installed in 1942 and replacement is required under Pacific Gas and Electric Company (PG&E) Integrity Management’s Vintage Pipe Replacement Program. The existing pipeline that was constructed in 1942 would be retired in place. The project site is located within the boundaries of the East Contra Costa County (ECCC) Habitat Conservation Plan (HCP)/Natural Community Conservation Plan (NCCP) Plan Area. The activities proposed as part of this project qualify as “covered activities” under the HCP.

Contact Information
Joseph W. Lawlor Jr
East Contra Costa County Habitat Conservancy
30 Muir Road
Martinez, CA 94553

Phone : (925) 674-7802


Contra Costa
Northern California Unincorporated
Cross Streets
Marsh Creek Road, Chianti Lane, Barbaresco Lane, and Pioneer Trail
Total Acres
Parcel #
007-380-018, 007-580-014, 007-570-007, 007-570-006, 007-700- 035, 007-680-065, 007-660-037, ...

Notice of Completion

Review Period Start
Review Period End
Development Type
Power:Other Power Type (Natural Gas Transmission pipeline)
Local Action
Other Action
Project Issues
Aesthetic/Visual Archaeologic-Historic Biological Resources Geologic/Seismic Noise Recreation/Parks Soil Erosion/Compaction/Grading Toxic/Hazardous Tribal Cultural Resources Vegetation Wildlife
Reviewing Agencies
California Air Resources Board California Department of Conservation California Department of Transportation, District 4 California Department of Water Resources California Energy Commission California Highway Patrol California Native American Heritage Commission California Natural Resources Agency California Public Utilities Commission California Regional Water Quality Control Board, San Francisco Bay Region 2 Central Valley Flood Protection Board Department of Toxic Substances Control Office of Historic Preservation State Water Resources Control Board, Division of Drinking Water California Department of Fish and Wildlife, Bay Delta Region 3 California Regional Water Quality Control Board, Central Valley Sacramento Region 5 California Department of Parks and Recreation


Environmental Document
_2020050321 Memo   PDF 1763 K Email Corrected Infomation   PDF 124 K Figure 1 Vintage Pipeline Replacement ISMND   PDF 1197 K Vintage Pipeline ISMND Final w Notice and Appendices   PDF 11399 K
NOC Form   PDF 265 K Summary_Form_for_Document_Submittal   PDF 586 K
State Comments
2020050321_CDFW Comment   PDF 321 K 2020050321_Parks and Rec Comment   PDF 321 K 2020050321_RWQCB Comment   PDF 329 K

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.

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