Whats the purpose of EPA doing wastewater sampling?
At selected facilities, EPA is planning to perform sampling of wastewater, sludge within in-scope impoundments, and possibly air immediately above in-scope impoundments, in order to verify the data submitted by the facility. At one or more facilities, EPA may also collect samples for the purpose of performing initial accuracy checks of the source term code of the mathematical fate and transport model that will be used in the risk assessment.