Suncor Water Quality Permits

Downloadable files (Nov. 16, 2021):  Español


Suncor's proposed draft permit

The Colorado Department of Public Health and Environment (CDPHE) is asking the public to weigh in on a permit that will limit pollution and place more conditions on Suncor oil refinery. The draft permit is a more restrictive permit than Suncor previously had. It will further protect Sand Creek and downstream waters for recreation, aquatic life, agriculture, and drinking. The permit aims to increase the transparency of Suncor’s site operations, and implement monitoring requirements and limits for dozens of toxic metals and chemicals, such as benzene and PFAS.

You can access the full draft permit package and provide public comment using the buttons below. 


Public comment period and meeting opportunities

Public comment period

Members of the public may provide written feedback over the next 90-days, but no later than Thursday, February 17, 2022.

Members of the public may provide written feedback over the next 90-days, but no later than Thursday, February 17, 2022. There are two ways to submit feedback on the permit:

You must submit your comments to CDPHE no later than February 17, 2022. 

Formal public comment meetings

In response to requests received from the public, the division will host two formal public comment meetings during the course of the public comment period.

Use the link below to register for the upcoming public comment meeting: 

Do you want to give oral comments during a meeting?

You must sign up for public comment if you want to give oral comments during the meeting you attend using this formEach speaker will have three minutes to provide oral comments. We encourage written comments if oral comments may take longer than three minutes. 

Interpretation services

Spanish interpretation will be available. In case you need an interpreter for another language, please contact You can also request to review the permit with an interpreter.

Engagement timeline

The engagement timeline outlines the general timeframe of this permit renewal process and shows when we are asking for input and when we are drafting the permit. This timeline may need to be adjusted based on how many comments we receive and how long it takes to write the permit. This timeline was last updated June 25, 2021. 

Resources and pollution data

The division tracks activities related to these permits.  All documents are available online at:

The division requires Suncor monitor the levels of certain toxic chemicals in their wastewater and groundwater. These chemicals are present in some firefighting foams and other sources called per- and polyfluoroalkyl substances (PFAS). 

Suncor monitors certain pollutants in the wastewater they discharge to the creek. 

Summaries of the data:

All data (except PFAS) for the CO0001147 permit is also on EPA's ECHO site:

CDPHE reviews spills associated with an entity and we consider that data and information when renewing a water quality permit. CDPHE created a Suncor spill report summary that highlights the spills most directly-related to water quality events. This summary does not include all the spills that come from Suncor. 

To access Suncor hazardous material data and correspondence, please visit the OnBase dashboard.

The Environmental Protection Agency (EPA) did a site inspection of the Suncor Oil Refinery from June 22 - 24, 2021, with CDPHE inspectors present. The inspection looked at the management of stormwater, water from the refinery process, and hazardous materials. To view the inspection letters, use the links below: 

You can also view the documents related to the inspection on the EPA website.