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Compliance testing for water providers

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What we do

Colorado’s Water Quality Control Commission requires compliance drinking water testing for wastewater companies, water providers, and other businesses who are supplying water to the public or discharging waste water to the environment.

Testing information

Water testing update (7/10/24) -  The following water testing services are not eligible for rush testing at this time: Organic chemical rules package, EPA 504: ethylene dibromide (EDB) and dibromochloropropane (DBCP), EPA 505: Chlordane and toxaphene, EPA 505: polychlorinated biphenyls (PCBs) as Aroclors, EPA 525: Semi-volatile organic compounds (SVOCs) and pesticides screen, EPA 525 individual SVOC compound, EPA 525: SVOC screen (non-quantitative).
Drinking water monitoring schedules
Submitting a water sample to the State Lab (step-by-step instructions)

 

Ordering bottles from the lab:
Bottle order form for compliance testing

This order form is for water providers and wastewater companies.
Water samples collected in other bottles will not be accepted because they may be contaminated.
Water testing supplies are free of charge and will be sent to you via FedEx.

Compliance drinking water tests and chemical package fees

The lab requires payment for water testing at the time of submission. 
The cost for a rush order is twice the test cost (excluding bacteria test costs).

Additional resources

Contact information

Environmental microbiology (bacteria in food or water)
CDPHE_envmicro@state.co.us
Specify the water test in the subject line.
Phone: 303-692-3490
Fax: 303-691-4008

Chemistry laboratory (chemicals in water)
CDPHE_chemistry@state.co.us
Specify the chemistry topic in the email subject line.
Voicemail line: 303-692-3048

Drinking water compliance assurance
General phone: 303-692-3556
County-level compliance contact information