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Protecting Our Waterways
From regulatory compliance to public education and water quality improvement projects, the OC Watersheds Program has a diverse role in preserving, protecting, and enhancing the coastal resources and…
Watershed Management Areas
*** Please visit www.northocirwm.org for the most up-to-date information on Integrated Regional Water Management (IRWM) efforts in North and Central Orange County. *** *** Please visit www.…
Archived PEA Reports
Access archived PEA reports using the navigation menu.
OC Stormwater Resource Plan
*** Please visit northocirwm.org (North and Central Orange County) or southocirwm.org (South Orange County) for the most up-to-date information on the Stormwater Resources Plan…
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South OC Watershed Management Area
Please visit www.southocirwm.org for the most up-to-date information on Integrated Regional Water Management (IRWM) efforts in South Orange County. **SOUTH ORANGE COUNTY ANNOUNCES PROPOSITION 1…
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Water Pollution Hotline 187789SPILL
Preventing the discharge of pollutants to receiving waters is essential to protecting designated beneficial uses. In order to maintain the chemical, physical, and biological integrity of Orange…