![]() ![]() Typical monitoring parameters include pH, biochemical oxygen demand (BOD), total suspended solids (TSS), nutrients ( nitrates and phosphorus), various toxic pollutants, temperature, etc. Permits typically require reporting of wastewater flow and the results of one or more chemical tests corresponding to the effluent limitations. weekly, and summarize the results for the prescribed reporting period. : 8–5 Facilities may collect and analyze samples more frequently, e.g. Most NPDES permits require facilities to submit monthly DMRs, but some permits require seasonal or semi-annual reporting. For pollutants not covered by the above circumstances, the agency may set technology-based limitations based on its "best professional judgment" (BPJ).Some dischargers are subject to water quality-based effluent limitations, derived from water quality standards for the adjacent water body.National technology-based standards apply to many industries (these standards are called " effluent guidelines"), : 5-14–5-22 and to municipal sewage treatment plants.The basis for these limitations depends on the type of discharging facility, the discharge characteristics and status of the specific surface water body receiving the discharge. NPDES permits and DMR reporting process įor permits other than stormwater permits, the agencies issue effluent limitations for specific pollutants, pursuant to the Clean Water Act (CWA). 1 NPDES permits and DMR reporting process.
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