Arkansas Effluent Limitations regulations & environmental compliance analysis

Arkansas Effluent Limitations: What you need to know

Governing Law and Regulations

Arkansas Water and Air Pollution Control Act, Arkansas Code Annotated 8-4-201 to 8-4-231

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Surface water uses: Arkansas Regulation (AR Reg.) 2.302

Water quality standards: AR Reg. 2.401 to 2.512

General standards: AR Reg. 2.401 to 2.410

Specific standards: AR Reg. 2.501 to 2.512

Domestic limitations: AR Reg. 6.401

Treated wastewater: AR Reg. 6.402

Losing stream segments: AR Reg. 6.301

Regulatory Agencies

Arkansas Department of Environmental Quality (ADEQ) Water Division

Arkansas Natural Resources Commission (ADNR) Water Management Division

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Arkansas has adopted by reference the federal effluent limits. See the national section EFFLUENT LIMITATIONS and contact ADEQ for more information. If ADEQ determines that the federal effluent limitations are inapplicable, the limitations will be determined on a case-by-case basis under 40 CFR 122.44(a) and 40 CFR 125.3(c)(2).

Arkansas has strict effluent limitations for domestic wastewater discharges and specific treated wastewater discharges. In addition, wastewater discharged to "losing" stream segments must comply with specific state effluent limitations.

Administration and enforcement. ADEQ administers the state's water quality program and is responsible for including effluent limitations in facility permits and enforcing these requirements. See the state section NPDES PERMIT for an overview of the state wastewater discharge permit requirements. In addition, ADNR has rules for the use and conservation of surface water.

State Requirements


AR REG 2.302

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