Arkansas Pretreatment Program

ADEQ’s Pretreatment Program implements and enforces EPA’s national program. ADEQ works closely with municipalities to protect local water quality from the threat of pollutants discharged into publicly owned treatment works (POTWs).

Protective sewage collection and treatment is important for any community’s environmental quality. POTWs may be designed to treat household (domestic) sewage, but the treatment plants also have industrial customers that may be discharging the most harmful pollutants.

Industrial wastewater can damage sewage collection systems and interfere with or upset the operation of publicly owned treatment works (POTW). Toxic discharges can pass through a system untreated, contaminating receiving streams and water bodies, and jeopardizing the environmental benefit of biosolids' land application.

Using proven pollution control technologies, most industries must pretreat their wastewater, removing pollutants to acceptable levels before discharging into a city’s system. Discharging or proposing to discharge industrial wastewater into a collection system connected to a POTW may require a permit from ADEQ or from one of several Arkansas pretreatment cities that implement U.S. EPA /State approved Pretreatment Programs and issue their own industrial indirect discharge permits.

Industrial facilities discharging to or planning to discharge to a POTW without its own municipal pretreatment program should contact ADEQ to determine whether an industrial discharge permit is required. Industrial facilities not located in a pretreatment city should still contact their non-pretreatment city to discuss the facility’s impact on the local treatment plant.

These are technology-based limitations on pollutant discharges to POTWs promulgated by EPA in accordance with Section 307 of the Clean Water Act that apply to specified process wastewaters of particular industrial categories [see 40 CFR 403.6 and 40 CFR Parts 405- 471]. Visit https://www.epa.gov/waterdata and NPDES Regulations for more information.

Pretreatment Forms for Municipalities

Select the appropriate category below.

EPA Pretreatment Program Documents and Links

The EPA has developed a guidance document for establishment of a municipal pretreatment program ordinance. EPA’s pretreatment website contains regulations, standards and resources.