AWWA Environmental Compliance 3

Question 1

Which EPA program requires large water utilities to develop a Risk and Resilience Assessment and Emergency Response Plan under AWIA 2018?

Accepted Answer

America's Water Infrastructure Act (AWIA)

Answer

AWIA 2018 amended SDWA Section 1433, requiring community water systems serving 3,300+ people to conduct risk and resilience assessments and update emergency response plans.

Question 2

Under the Stage 2 Disinfectants and Disinfection Byproducts Rule, what monitoring approach replaced the running annual average?

Accepted Answer

Locational Running Annual Average (LRAA)

Answer

The Stage 2 DBP Rule uses the Locational Running Annual Average (LRAA), evaluating compliance at each monitoring location rather than system-wide averages.

Question 3

What is the primary environmental concern driving the Revised Total Coliform Rule (RTCR) monitoring requirements?

Accepted Answer

Fecal contamination indicating potential pathogen presence

Answer

The RTCR monitors for total coliforms as indicators of fecal contamination, which signals potential presence of pathogens like E. coli in the distribution system.

Question 4

A water utility's surface water source is upstream from a wastewater treatment plant. Which EPA rule most directly addresses the use of this source for drinking water?

Accepted Answer

Surface Water Treatment Rule

Answer

The Surface Water Treatment Rule sets treatment technique requirements for surface water systems to protect against pathogens including Giardia, Cryptosporidium, and viruses.

Question 5

What must a water utility do if it detects a contaminant above the Maximum Contaminant Level and serves a population greater than 10,000?

Accepted Answer

Issue a public notice as soon as practicable but no later than 30 days

Answer

For Tier 2 violations (such as MCL exceedances), public notice must be issued as soon as practicable but no later than 30 days after the violation is discovered.

(AWWA) American Water Works Association Practice Test

(AWWA) American Water Works Association Practice Test

AWWA Environmental Compliance 3