Louisiana Wastewater Variances: What you need to know

Governing Law and Regulations

Louisiana Pollutant Discharge Elimination System (LPDES): Louisiana Administrative Code (LAC) 33:IX.2301 to 33:IX.7399

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LPDES variances: LAC 33:IX.2501

Non-publicly owned treatment works (POTW): LAC 33:IX.2501.L

POTWs: LAC 33:IX.2501.M

Expedited variances: LAC 33:IX.2501.N

Fundamentally different factors (FDF) variance: LAC 33:IX.4301 to 33:IX.4305

Variance requirements: LAC 33:IX.4303

Variance application: LAC 33:IX.4305

Thermal discharge variance: LAC 33:IX.4501 to 33:IX.4507

Pretreatment standards: LAC 33:IX.6125

Toxic pollutant effluent standards: LAC 33:IX.5701 to 33:IX.5727

Regulatory Agencies

Louisiana Department of Environmental Quality (DEQ) Office of Environmental Compliance

U.S. Environmental Protection Agency (EPA) Region 6

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Louisiana's DEQ is authorized by EPA to administer the federal National Pollutant Discharge Elimination System (NPDES) permit program for wastewater discharges (known in Louisiana as the Louisiana Pollutant Discharge Elimination System (LPDES)). Louisiana includes variance provisions into its wastewater discharge permit regulations. The variance provisions are the same as the federal FDF variance. See the national section WASTEWATER VARIANCES for guidance on FDF variances.

Administration and enforcement. DEQ's Office of Environmental Compliance is responsible for the administration and enforcement of the state's wastewater variance provisions.

State Requirements


LAC 33:IX.2501

Louisiana has established rules regulating variances for both POTWs and non-POTWs.


LAC ...

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State Requirements

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Louisiana Wastewater Variances Resources

Wastewater Variances Products

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