40 CFR 455.21 - Specialized definitions.
(d)Process wastewater flow means the sum of the average daily flows from the following wastewater streams: Process stream and product washes, equipment and floor washes, water used as solvent for raw materials, water used as reaction medium, spent acids, spent bases, contact cooling water, water of reaction, air pollution control blowdown, steam jet blowdown, vacuum pump water, pump seal water, safety equipment cleaning water, shipping container cleanout, safety shower water, contaminated storm water, and product/process laboratory quality control wastewater. Notwithstanding any other regulation, process wastewater flow for the purposes of this subpart does not include wastewaters from the production of intermediate chemicals.
- 40 CFR 455.26 — Pretreatment Standards for Existing Sources (PSES).
- 40 CFR 455.24 — Effluent Limitations Guidelines Representing the Degree of Effluent Reduction Attainable by the Application of the Best Available Control Technology Economically Achievable (BAT).
- 40 CFR 455.27 — Pretreatment Standards for New Sources (PSNS).