The CalEPA Regulated Site Portal is a website that combines data about environmentally regulated sites and facilities in California into a single, searchable database and interactive map. The portal was created to provide a more holistic view of regulated activities statewide. By combining data from a variety of state and federal databases, the portal provides an overview of regulated activities across the spectrum of environmental programs for any given location in California. These activities include hazardous materials and waste, state and federal cleanups, impacted ground and surface waters, and toxic materials. (More)
The portal combines information from the databases listed below. Additional data sources may be added in the future.
Report an Issue or Error
CalEPA and its agencies work together to ensure the information on this website is accurate and up to date. If you believe that you have identified an error or if data appears to be missing, please let us know by following the steps below. We are grateful for your feedback. If you would like a response, please be sure to include your name and phone number or email address.
1. Go to the facility where you first identified the problem.
2. Look at the detail under Regulatory Programs to identify the Source System.
3. Find that Source System contact information below.
4. If you are communicating by email, please include the facility name, a screen shot, or any other information that you believe will help research the problem.