Categorical Pretreatment Standards are limitations on pollutant
discharges to POTWs, promulgated by EPA in accordance with Section
307 of the Clean Water Act that apply to specific process wastewaters
of particular industrial categories. These are national, technology-based
standards that apply regardless of whether or not the POTW has an
approved pretreatment program or the industrial user has been issued
permits. The standards applicable to industrial discharges to a
POTW collection system are designated in the Effluent Guidelines
& Limitations (Parts 405-471) by the terms "Pretreatment
Standards for Existing Sources" and "Pretreatment Standards
for New Sources". |
