Maryland Effluent Limitations regulations & environmental compliance analysis

Maryland Effluent Limitations: What you need to know

Governing Law and Regulations

Effluent limitations: Code of Maryland Regulations (COMAR) to

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Prohibited discharges: COMAR

Nuisance species management: COMAR

Chlorine discharges: COMAR

Water quality standards:

Designated water use classes: COMAR

Water quality criteria: COMAR and COMAR

Antidegradation policy: COMAR

Regulatory Agencies

Maryland Department of the Environment (MDE) Technical and Regulatory Services Administration

Maryland Department of Agriculture (MDA)

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. Maryland has developed effluent standards and limitations in compliance with the federal Clean Water Act and has specific chemical limitations for chlorine and toxic substances that are more stringent than the federal requirements. In addition, Maryland has protected surface waters where discharges are not allowed and has established water quality standards to protect waters of the state.

Each discharge permit, unless inappropriate, must specify average and maximum daily quantitative limits, in terms of weight, for the discharge of pollutants in the authorized discharge. For more information on discharge permits, see the state section NPDES PERMIT.

Administration and enforcement. The MDE is responsible for most of the administration and enforcement of the state's effluent limitations related to water pollution control. However, the MDA is responsible for some discharge limits for certain agricultural operations.

State Requirements


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