Guidance Manual for the Use of Production-Based Pretreatment Standards and the Combined Wastestream Formula

摘要

The guidance manual was developed by EPA to explain how to implement two important elements of the national pretreatment program: categorical standards and the combined wastestream formula. The first section explains how to apply production-based categorical standards in a permit, contract, or similar mechanism. The second part explains how to use the combined wastestream formula, providing definitions and examples. The guidance manual also clarifies how the combined wastestream formula should be applied when unregulated and dilution streams are combined with regulated wastestreams after treatment. The manual also provides guidance on how to proceed when Control Authorities do not use the combined wastestream formula when regulated and unregulated wastestreams are combined after treatment. It also includes examples showing how a formula should be used to account for the streams added after treatment. There are five appendices: A=Publications Available from GPO/NTIS; B=Status of Categorical Pretreatment Standards; C=Flow Measurement References; D=Copper Forming Categorical Pretreatment Standards; E=Portion of NPDES Permit Application Requesting Production and Flow Information. NOTE: Appendix D proposed revisions were published in Federal Register on May 9, 1985.