PG&E Pipeline Maintenance Project

3 Documents in Project


SCH Number
Lead Agency
Humboldt Bay Harbor
Document Title
PG&E Pipeline Maintenance Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Natural Resource/ Natural Resource Coastal Wetland (NR/W), Agricultural Exclusive (AE), Residential Suburban (RS), Timber Production (TPZ)/ Agricultural Exclusive (AE), Natural Resource (NR), Residential Low Density (RL), Timberland Conservation (TC)

Document Description
The Project objectives are maintenance of three pipeline areas by either permanently decommissioning and replacing previously retired pipelines and/or reducing pipeline exposure due to erosion; thereby improving the operating condition and safety of the system in each area. PG&E intends to decommission the previously retired 8-inch diameter Line 137B Freshwater Slough crossing under the slough bed (R-354), replace and decommission the existing 4-inch diameter Line 137C (L-137C) Ryan Slough crossing that is currently exposed in the slough bed (R-519), and to remediate the erosion issues resulting from water flowing across an earth berm that runs along the west side of Ryan Creek (RT-102).

Contact Information
Adam Wagschal
Humboldt Bay Harbor
Lead/Public Agency
601 Startare Drive
Eureka, CA 95501

Phone : (707) 443-0801

Pacific Gas and Electric (PG&E)
Project Applicant


40°47'7.96"N 124°7'8.62"W
Cross Streets
Park Street/ Quaker Street - Myrtle Avenue/Oak Ridge Terrace Lane - Mitchell Road/Cummings Road
Parcel #
017-121-005, 017-151-007, 017-031-005
State Highways
Murray Field
Ryan Slough, Eureka Slough, Humboldt Bay

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Utilities - pipeline decommission and maintenance)
Local Action
Harbor District Permit
Project Issues
Biological Resources Coastal Zone Cultural Resources Flood Plain/Flooding Geology/Soils Hazards & Hazardous Materials Hydrology/Water Quality Noise
Reviewing Agencies
California Air Resources Board (ARB) California Coastal Commission (CCC) California Department of Conservation (DOC) California Department of Fish and Wildlife, Eureka Region 1 (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 1 (DOT) California Department of Transportation, Division of Aeronautics (DOT) California Department of Water Resources (DWR) California Governor's Office of Emergency Services (OES) California Highway Patrol (CHP) California Natural Resources Agency California Public Utilities Commission (CPUC) California Regional Water Quality Control Board, North Coast Region 1 (RWQCB) California State Lands Commission (SLC) Office of Historic Preservation State Water Resources Control Board, Division of Water Quality State Water Resources Control Board, Divison of Financial Assistance California Native American Heritage Commission (NAHC)


Environmental Document
1018-08 L123 Eureka Decommissioning Plan - Fresh Water 20200413 CMF   PDF 7798 K 74004042- 60-8-16-19   PDF 14371 K AppB_AQ-GHG Calcs_combined   PDF 261 K AppC_PGE_EurekaPipelineMaintenance_BioReport_Final04222020-Public   PDF 20305 K AppD_Inadvertant Discovery Protocol - Adopted April 23 2015   PDF 736 K AppE_MMP_4   PDF 182 K PGE Pipeline Draft IS MND_4   PDF 16126 K PGE Pipeline NOI_5-18-2020_signed   PDF 110 K PGE Pipeline Summary Form_5-18-2020   PDF 581 K RT-102 60% Design 20191018   PDF 7767 K
PGE Pipeline_NOC_signed   PDF 217 K
State Comments
2020059035_NAHC Comment   PDF 315 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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