County of San Diego Sanitation District: Los Coches Sanitary Sewer Improvements from Maintenance Hole LSMH0555 to LSMH0599 Project
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Summary
- SCH Number
- 2020060316
- Lead Agency
- San Diego County
- Document Title
- County of San Diego Sanitation District: Los Coches Sanitary Sewer Improvements from Maintenance Hole LSMH0555 to LSMH0599 Project
- Document Type
- MND - Mitigated Negative Declaration
- Received
- Document Description
- The County of San Diego Sanitation District proposes the Los Coches Sanitary Sewer Improvement Project (proposed project) to improve and stabilize a section of an existing sanitary sewer pipeline. The proposed project will rehabilitate approximately 7,300 feet of an existing sewer collection system pipeline located between maintenance holes LSMH0555 to LSMH0599 below a section of Los Coches Creek. The proposed project follows the alignment of the existing sewer line, which is situated just south of Old Hwy 80 between its intersections with Gaucho Lane to the west and Flinn Crest Street to the east. The proposed work includes two main elements: installation of a composite lining within the existing pipe using the Cured-in-Place Pipe (CIPP) method. The CIPP liner serves to reinforce the existing pipe by precluding decay and providing additional structure for the pipeline. The second element includes reinforcement of three sections of pipeline through concrete encasement and a cover of Articulated Concrete Block to strengthen the cover and stability of streambed surfaces above the pipe section. These repairs and improvements would rehabilitate and stabilize the long-term safety and reliability of the sewer pipeline to reduce the likelihood of sewage spills and damage caused by pipe material degradation and erosion.
- Contact Information
-
Cynthia Curtis
County of San Diego, Department of Public Works
Lead/Public Agency
5510 Overland Ave., STE 410
San Diego, CA 92123
Phone : (858) 694-3906
cynthia.curtis@sdcounty.ca.gov -
County of San Diego Sanitation District
Project Applicant
Location
- Counties
- San Diego
- Cross Streets
- south of Old Hwy 80 b/w intersections with Gaucho Ln. to the west & Flinn Crest Str to the east
- Township
- 15S
- Range
- 1E
- Section
- 31
Notice of Completion
- Review Period Start
- Review Period End
- Development Type
- Other (Sectional rehabilitation of existing sewer pipeline)
- Project Issues
- Biological Resources
- Reviewing Agencies
- California Air Resources Board (ARB) California Department of Conservation (DOC) California Department of Parks and Recreation California Department of Transportation, District 11 (DOT) California Department of Water Resources (DWR) California Governor's Office of Emergency Services (OES) California Highway Patrol (CHP) California Native American Heritage Commission (NAHC) California Natural Resources Agency California Regional Water Quality Control Board, San Diego Region 9 (RWQCB) California San Diego River Conservancy (SDRC) California State Lands Commission (SLC) Department of Toxic Substances Control Office of Historic Preservation State Water Resources Control Board, Division of Water Quality State Water Resources Control Board, Divison of Financial Assistance California Department of Fish and Wildlife, South Coast Region 5 (CDFW)
Attachments
- Environmental Document
- Los Coches_Biological Report PDF 22347 K Los Coches_Cultural Report PDF 2044 K Los Coches_Draft Initial Study_6 PDF 749 K Los Coches_Draft MND PDF 246 K Los Coches_NOI PDF 463 K Los Coches_OPR Summary Form PDF 1129 K Los Coches_Project Map Figures PDF 1060 K
- NOC
- Los Coches_NOC PDF 1081 K
- State Comments
- 2020060316_CDFW Comment PDF 524 K
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