The following minor edits were made to the May 2018 Model BMP Design Manual: Section 1.3, Table 1-2, Page 1-6. Applicability of Permanent, Post-Construction Storm Water Requirements. Removed “Maintenance activities that are part of a larger master planning effort…” Section 1.4.1.(f), Page 1-9. New or redevelopment projects that result in the disturbance of one or …
Project Clean Water
Flushing Do’s and Don’ts Did you know that wipes, paper towels and similar products, when flushed down toilets, do not break down properly and can cause significant problems for our sewer system and treatment plants? And don’t be fooled by those products labeled as ‘flushable’ – they are not compatible with sewer systems, the material …
An update to the May 2018 Carlsbad Water Quality Improvement Plan (WQIP) includes the Escondido Creek HMP Exemption. Documents related to the Carlsbad WQIP are available for download.
A minor edit was made to the May 2018 Model BMP Design Manual (summary page i). The sentence below: “This updated manual replaces and supersedes the February 2016 manual and is effective May 15, 2016.” Now reads as following: “This updated manual replaces and supersedes the February 2016 manual.” Thus removing a typographical error. Also, …
This White Paper is a study of regionally available Bioretention Soil Media (BSM) that lead to the County-wide refinement of BSM specifications. The paper is available for download.
2017 Report of Waste Discharge – Regional Monitoring & Assessment Report The ROWD-RMAR document was delivered to the San Diego Regional Water Board on December 27, 2017 Final documents are available here to download.
The letter that the RWQCB wrote to describe the documentation needed to support the infeasibility of infiltration onsite has been posted here: Priority Development Project Infiltration Infeasibility Documentation Guidelines
The May 2017 training presentation slides about the new version of the San Diego Hydrology Model (SDHM) 3.1 are now available for download here. The newest version of the model is also available here.
A portion of the Otay River was included as exempt from Hydromodification Management Plan requirements through the WQIP Annual Reporting process. The WMAA mapping has been updated to reflect this change. The PDFs of the data can be found on the WMAA page here. The GIS data is available here.
New BMP Maintenance Fact Sheets have been been developed by the copermittees to inform anyone who is designing or maintaining BMPs within the County of San Diego. The fact sheets can be downloaded below.