OIT Environmental Regulations and Permits Flashcards

Under the Lead and Copper Rule, what action must a water system take if lead levels exceed the action level of 15 ppb?

Answer: Notify customers and take corrective actions

When lead exceeds the 15 ppb action level, the utility must notify affected customers and implement approved corrosion control or other corrective actions.

What is the purpose of the Total Coliform Rule (TCR)?

Answer: To ensure drinking water is free from harmful coliform bacteria

The Total Coliform Rule sets standards for coliform bacteria to protect against microbial contamination in public water systems.

What is the required frequency for reporting violations of primary drinking water standards to the state?

Answer: As soon as practicable, no later than 48 hours

Primary standard violations must be reported to the state as soon as practicable but no later than 48 hours after discovery.

Which term describes the legal document issued to a water utility that defines the conditions under which it may operate?

Answer: Permit to operate

A permit to operate (or operating permit) is the legal document that authorizes a water utility to operate and defines compliance conditions.

What is the Surface Water Treatment Rule (SWTR) primarily designed to protect against?

Answer: Giardia and Cryptosporidium from surface water sources

The SWTR requires filtration and disinfection of surface water supplies to specifically protect against Giardia lamblia and Cryptosporidium.

What is the significance of a Secondary Maximum Contaminant Level (SMCL)?

Answer: It is a non-enforceable guideline for aesthetic water quality

SMCLs are non-enforceable guidelines set by the EPA for contaminants that affect taste, odor, or appearance but not direct health.