Pennsylvania Effluent Limitations: What you need to know

Governing Law and Regulations

Water quality standards: 25 Pennsylvania Code (Pa. Code) 93.1 to 93.9z

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National Pollutant Discharge Elimination System (NPDES) permits: 25 Pa. Code 92a.1 to 92a.104

Water quality criteria: 25 Pa. Code 93.6

Toxic substances: 25 Pa. Code 93.8a, 25 Pa. Code 16.51, and 25 Pa. Code 16.52

Site-specific criteria: 25 Pa. Code 93.8d and 25 Pa. Code 93.8e

NPDES permits: 25 Pa. Code 92a.44

Total maximum daily loads (TMDLs) and water-quality-based effluent limitations (WQBELs): 25 Pa. Code 96.4

Nutrient discharges: 25 Pa. Code 96.5

Potable water protection: 25 Pa. Code 96.3

Regulatory Agencies

Pennsylvania Department of Environmental Protection (DEP) Office of Water Management Bureau of Water Standards and Facility Regulation

Pennsylvania Environmental Quality Board (EQB)

U.S. Environmental Protection Agency (EPA) Region 3

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Pennsylvania has developed effluent standards and limitation requirements in compliance with the federal Clean Water Act (CWA), with a few significant additions. The state has included the federal priority pollutants in its detailed water quality standards and issues NPDES permits to point source dischargers, which include provisions for effluent limits.

Administration and enforcement. DEP's Bureau of Water Standards and Facility Regulation is responsible for the administration and enforcement of the state's water pollution control program, including for effluent limitations.

State Requirements


25 Pa. Code 93.6

In Pennsylvania, water from point or nonpoint source discharges may not contain ...

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State Requirements

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Pennsylvania Effluent Limitations Resources

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