[1]: 8–5 Facilities may collect and analyze samples more frequently, e.g. weekly, and summarize the results for the prescribed reporting period.
Permits typically require reporting of wastewater flow and the results of one or more chemical tests corresponding to the effluent limitations.
Typical monitoring parameters include pH, biochemical oxygen demand (BOD), total suspended solids (TSS), nutrients (nitrates and phosphorus), various toxic pollutants, temperature, etc.
[5] EPA houses DMR data in its Integrated Compliance Information System (ICIS).
Information from ICIS database is available through EPA's "Envirofacts" website and "Enforcement and Compliance History Online" (ECHO).