Hazardous Materials and Waste Management Division records review

Our records search function will be unavailable for routine maintenance:
Starting Friday, Sept. 15, 5 p.m.
Ending Monday, Sept. 18, 5 a.m.
Times listed are Mountain Daylight Time.
We apologize for the inconvenience. 
Search by title, address, site name and more
Submit your request online 
Note: Each division maintains separate records. You must contact the Air Pollution Control Division and the Water Quality Control Division individually for a file review and records request.
Types of records
You can review most solid waste, hazardous waste, radiation management, X-ray and mammography, and environmental cleanup site and facility files under the Colorado Open Records Act.
Reviewing files
  • We'll respond to all requests within three business days. 
  • You must have an appointment to review files. They're not available on a walk-in basis.
  • Bring photo identification, like your driver's license or state-issued photo ID, with you.
  • Fees may apply.