PFAS Discharge Permit Survey

To better understand the risks of PFAS going into Colorado’s surface waters and groundwater, the department conducted a survey of facilities who are permitted to release treated wastewater, water used for manufacturing, and other similar activities into local waterways. We call these entities discharge permittees. All permittees were required to complete the survey by August 24, 2020. The survey asked about permittees’ use and storage of certain products containing PFAS, including Class B firefighting foam. 

Survey results

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Map of facilities with known or suspected presence of PFAS

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Legend for map of facilities with known presence of PFAS

This map shows the locations of facilities that reported on the PFAS survey they they: use or store AFFF or class B firefighting foam or other PFAS-containing materials; are within proximity to where AFFF is likely used; and/or have potential PFAS passing through their wastewater treatment plant. 

  • The locations of the facilities were based on the latitude and longitude coordinates listed on their department permits. THIS MAY NOT REFLECT THE ACTUAL LOCATION OF THE FACILITY OR PERMIT LOCATION. For example, the municipal storm sewer permit usually covers the entire city area. The latitude and longitude may reflect the center of that area or is located near the permitted area. 
  • To view more information about a particular facility, click on the marker. 

Link to map:

Note: ArcGIS software has a character limit on what can be displayed. Use this metadata sheet to understand what each row means when you select a point to view more information about it. The character limit cuts off some of the words in longer responses submitted for the survey, but the full responses can be found on this spreadsheet of facilities with known or suspected PFAS presence.

More information

We will use this information to help us to better understand PFAS use in the state, risks to state waters, and to determine if PFAS monitoring is needed for specific permits or specific categories of permittees. We will also share relevant information with public drinking water systems, public health agencies, department divisions, and other state agencies. 

To receive email updates on this topic, please join this email list-serve using this online form.

Meg Parish |

303-692-3419| Permits Section Manager