Mount Carmel Pipeline Washout Repair Project


SCH Number
Public Agency
Regional Water Quality Control Board, Region 9
Document Title
Mount Carmel Pipeline Washout Repair Project
Document Type
NOE - Notice of Exemption
Document Description
A five-foot section of the Applicants petroleum pipeline is exposed due to erosion and channel incision caused by a concrete V-ditch and culvert outlet that discharges upstream of the pipeline. The Applicant proposes to recontour the channel and banks around exposed petroleum pipeline, rebury the exposed section of pipe, install concrete open cell matting over channel bottom, place rip-rap from the concrete V-ditch outlet to the upstream end of the mats, and place a rip-rap grade control structure at the downstream end of the mats. Stockpiled soils from the excavation will be used to fill the voids in between the spaces of the revetment mats and rip-rap. The bank slopes will be covered with erosion control blankets to prevent erosion and the streambed banks will be hydro seeded and revegetated with native plants.

Contact Information

David Gibson
Agency Name
Regional Water Quality Control Board, Region 9
Contact Types
Lead/Public Agency


San Diego
San Diego

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, sec. 15301
Reasons for Exemption
Inspection, repair, or maintenance of an existing facility involving negligible or no expansion of an existing use. Replacement or reconstruction of existing utility systems and facilities involving negligible or no expansion of capacity.

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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