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National Pollutant Discharge Elimination System Compliance Inspection Manual
The National Pollutant Discharge Elimination System (NPDES) Compliance Inspection Manual (PDF) (802 pp, 9.79MB, About PDF) July 2004 provides guidance on NPDES inspections of wastewater treatment plants, storm water industrial and construction sites, pretreatment facilities, biosolids handling and treatment facilities, Concentrated Animal Feeding Operations (CAFOs), municipal wastewater collection systems (combined and separate from storm water) as well as pollution prevention and multimedia concerns. These procedures are fundamental to the NPDES compliance program and provide inspectors with a method for conducting inspections.