Chemicals in Drinking Water
Information about chemical contaminants commonly found in drinking water and how they are regulated at public water systems.
Arsenic, Fluoride, Nitrate, and Nitrite - Inorganic Contaminants in Drinking Water
Common inorganic contaminants—arsenic, fluoride, nitrate and nitrite—their health effects, monitoring and sampling, maximum contaminant levels , and treatment options.
Chlorine and Chloramines
Common regulated disinfectants for public water systems, monitoring requirements, and using the disinfectant level quarterly operating report (DLQOR).
Disinfection Byproducts
What are disinfection byproducts, how they form, and how public water systems can manage them.
Lead and Copper Rule Revisions (LCRR) and Lead and Copper Rule Improvements (LCRI)
Resources and guidance for complying with the LCRR and LCRI.
Lead and Copper Rule (LCR)
Guidance, forms, and information for public water systems, laboratories, and the public.
Voluntary Lead Testing in Schools and Child Care Facilities in Drinking Water
Free statewide program to help eligible participants conduct voluntary sampling and analysis for lead in drinking water at their schools and child care facilities.
NEW Per- and Polyfluoroalkyl Substances (PFAS) In Drinking Water
Requirements for public water systems’ PFAS monitoring, and timeframe for system compliance.
Radionuclides
Information on the occurrence of radionuclides in public water systems in Texas, long-term risks to health, treatment options, compliance determination and public notification requirements.
Secondary Constituents
Established guidelines to assist public water systems in managing their drinking water for aesthetic considerations, such as taste, color, and odor. These contaminants are not considered to present a risk to human health at the secondary levels.
Monitoring, Testing, and Reporting
Public Water System Chemical Sampling and Monitoring Frequency
Information about sampling and monitoring requirements for public water systems.
Public Water System Monitoring Plans and Lab Approval
Information about creating a monitoring plan that complies with TCEQ requirements. Lab approval ensures public water systems and labs are using the appropriate method of analysis and quality control procedures.
Accredited Labs for Sample Analysis
Find a lab, and their fields of accreditation, to analyze your drinking water samples.
Understanding Chemical Analysis Results
Reading and interpreting the results of chemical analyses reported to public water systems by a drinking water lab.
Consumer Notification
Consumer Confidence Report (CCR)
How to prepare a CCR and rule requirements.
Public Notice and Boil Water Notice Templates
Public water systems must notify consumers about violations of microbial, chemical, or surface water treatment standards for drinking water. Find required public notice language and certificate of delivery documents by contaminant.