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OC Watersheds Appendix E, Technical Reports

The Orange County Stormwater Permittees have recently conducted and participated in a number of special studies and investigations which are available below. Comments or questions concerning these technical reports should be directed to George Edwards of the OC Watersheds Program.

If there are any questions regarding the details of a document, or to obtain a hard copy or other alternative formats of the original document, or to have a document read to you, please contact the OC Public Works offices, Monday through Friday, 7:00 am to 5:00 pm PST, at 2301 N. Glassell St., Orange, CA, 92865 or by email at OC Watersheds, or by phone at (714) 955-0600.

• Appendix E, Cover
• Appendix E1, BMP Effectiveness and Applicability for Orange County
• Appendix E2, Trash and Debris BMP Evaluation
• Appendix E3, Erosion Control BMP Effectiveness Study
• Appendix E4, Septic System Inventory & Assessment
  • Figure 1-1: Septic System Locations
  • Figure 1-1: Septic System Locations & Watersheds
  • Figure 1-2: Septic System Survey Area
• Appendix E5, Portable Toilet Pollution Prevention Program
• Appendix E6, Dry Weather Diversion Study
• Appendix E7, BMP Retrofit Study
• Appendix E8, Countywide Spill Control Program (CASC) Report (joint project with the Orange County Sanitation District)
• Erosion Control Best Management Practices - Field Evaluation: The NPDES municipal stormwater permit for the County of Orange and local jurisdiction Permittees (Order No. R8-2002-0010) issued by the Santa Ana Regional Water Quality Control Board in 2002 required the Permittees to submit a proposal for a study to evaluate the effectiveness of a group of selected BMPs for controlling erosion during new development (construction).