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Chemicals in Drinking Water

Chemicals found in drinking water, drinking water quality data, disinfection byproducts, monitoring and testing.

Dealing with Specific Chemicals
Find information on individual contaminants that concern you.

Drinking Water Watch
Use this searchable database of analytical results and compliance data to learn more about the quality of your drinking water and your public water system's compliance with state and federal regulations.

Disinfection Byproducts

Is My Public Water System Affected by the Stage 2 Disinfection Byproducts (DBP2) and Long Term 2 Enhanced Surface Water Treatment (LT2) Rules?
Use this list to find out whether TCEQ data have assigned your PWS to the correct group for implementation of the new DBP2 and LT2 rules.

DBP2 and LT2 Training Opportunities
How to register for webcasts, teleconferences, and other events set up to provide training on the DBP2 and LT2 rules.

Monitoring and Testing

Public Water System Chemical Sampling and Monitoring Frequency?
Basic information for public water systems about sampling and monitoring requirements.

Radionuclide Testing for Interim Approval of Well Completion
How to register for webcasts, teleconferences, and other events set up to provide training on the DBP2 and LT2 rules.

UCMR: Monitoring Unregulated Contaminants in Drinking Water
How to register for webcasts, teleconferences, and other events set up to provide training on the DBP2 and LT2 rules.