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EPA's Region 6 Office

Serving: Arkansas, Louisiana, New Mexico, Oklahoma, Texas, and 66 Tribal Nations

Biosolids in Region 6

Region 6 tracks and enforces compliance with the self-implementing standards in 40 CFR 503, issues permits in some cases, and provides guidance and technical assistance. Wastewater treatment plants with influent flows over 1 mgd must report to EPA Region 6 on their biosolids use/disposal by February 19 of each year for the previous calendar year.  Two states in Region 6, Oklahoma and Texas, are authorized to administer biosolids programs, while EPA retains authority over the use and disposal of biosolids and septage for Arkansas, Louisiana, and New Mexico.

Arkansas
EPA retains authority over biosolids use and disposal in the state of Arkansas.  The Arkansas Department of Enivronmental Quality regulates sewage sludge composting and landfilling in its Regulation No. 22- Solid Waste Management Rules.  The Arkansas Department of Health regulates the cleaning of septage tanks to include the disposal of septage.

Louisiana
EPA retains authority over biosolids use and disposal in the state of Louisiana. However, Louisiana Department of Environmental Quality (LDEQ) has promulgated regulations found at LAC 33:IX.Chapter 69 regarding use and disposal of biosolids in Louisiana.

New Mexico
To date, the neither the NPDES program nor the biosolids program is delegated in New Mexico. However, the state of New Mexico has begun actions to acquire both the NPDES and biosolids programs. Currently, biosolids use and disposal in New Mexico are regulated through NPDES permits issued by EPA. Additionally, New Mexico Environment Department (NMED) regulates the composting and landfilling of sewage sludge through its Solid Waste Management Rules found at 20 NMAC 9.1. NMED regulates the disposal of household sewage (septage) from on-site systems through a permit program established through its Liquid Waste Disposal and Treatment Regulations, 20 NMAC 7.3 and is in the process of developing a certification program for the various activities by July 1, 2007.

Oklahoma
Oklahoma Department of Environmental Quality (ODEQ) has been authorized to administer EPA’s biosolids program in Oklahoma. Guiding regulations for ODEQ implementation of the program are found at the Oklahoma Pollutant Discharge Elimination System Standards (OPDES) found at Title 252, Department of Environmental Quality, Chapter 606.

Texas
Texas Commission on Environmental Quality (TCEQ) has been authorized to administer EPA’s biosolids program in Texas. TCEQ regulates sewage sludge and septage in the State under Title 30, Texas Administrative Code (30 TAC) Section 312.

Denise Hamilton
Regional Oil & Gas Coordinator
U.S. EPA, Region 6
1445 Ross Avenue
Dallas, Texas 75202-2733
Phone: 214-665-7511
FAX: 214-665-2191
Ted Palit, P.E.
Water Enforcement Branch (6EN-W)
U.S. EPA, Region 6
1445 Ross Avenue
Dallas, Texas 75202-2733
Phone: 214-665-7511
FAX: 214-665-2191

If you need more information on biosolids, please go to the frequently asked questions web page.

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