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Mandatory public notification language for chemical monitoring violations.

Step-by-step instructions for notifying customers of a nonacute violation of the MCL for coliform. Links to templates for preparing mandatory language as well ...

Explains the important interconnections between these two aspects of protecting community water supplies.

Instructions to follow to obtain valid samples of drinking water to be tested for microbial contamination.

Guidance for all aspects of your groundwater treatment plant, from design and construction to day-to-day operation.

Monitoring and reporting that you must do to confirm that your system is providing safe drinking water.

If public water systems use chlorine dioxide or ozone, they must comply with additional disinfectant and monitoring rules.

Public water systems on quarterly monitoring schedules for disinfection byproducts must comply with operational evaluation requirements.

What are disinfection byproducts, how do they form, and how can public water systems control them?

Guidance for all aspects of your surface water treatment plant, from design and construction to day-to-day operation.