Individual NPDES Permits

Examples of facilities that likely require an NPDES permit include a facility that discharges wastewater, a construction site, or a pretreatment operation. Individual NPDES permits are prepared with limits and conditions for specific facilities. The permits are effective for five years. If a permittee applies for renewal 180 days prior to the expiration date of the existing permit, the existing permit is extended until the effective date of the new permit.

ADEQ manages four kinds of individual discharge permits. Point source dischargers are divided by municipal operation and industrial operation. Both of these permits require an additional state permit for construction of any new wastewater facilities. Pretreatment requirements are enforced as industrial discharge permits issued by ADEQ or by those Arkansas cities that have federal- and state-approved pretreatment programs.

While many facilities seek coverage through general stormwater permits, some comply with regulations through an individual stormwater permit that reflects the facility's unique permit conditions and limits.

All individual permits require public notices or public review. Find public notices of a specific individual permit:

  1. Data and Information
    Staff identifies all pollutants known or believed to be present in the effluent (the waste to be discharged).

    A review is made of existing information in the application and in ADEQ files, such as effluent quality data, current permit conditions, inspections, construction permits, and compliance status.
  2. Applicability
    Staff determines the applicability of EPA technology-based effluent guidelines.
  3. Effluent Limits
    Staff determines the water quality-based effluent limits for pollutants required by EPA guidelines, as well as any additional pollutants believed to be present in the effluent. Water quality-based effluent limits take into account characteristics of the receiving stream, such as the low flow value and hardness of the stream at the point of discharge.

    The permit is drafted with the effluent limits based on either the technology-based limits or water quality-based limits, whichever are more stringent.
  4. Schedule for Compliance
    The permit may contain a time schedule for the permittee to achieve compliance with effluent limits that were either not included in the previous permit or are more stringent than the effluent limits in the previous permit.

    This schedule of compliance is included in the permit only if it is determined that the permittee is unable to meet the limits at the time of permit issuance.

    If the permit applicant is a new facility or an existing facility that is recommencing its discharge, the applicant is not allowed a schedule of compliance.

Individual NPDES Permit Application Information

The following individual NPDES permits are available and are listed with coverage forms and information. Select the appropriate category below.

The four categories of municipal discharge permits are based on volume of design flow or ownership:

Major Municipal
A facility owned by a municipality or regional sewer district, with a design flow of 1 million gallons per day or greater
Minor Municipal
A facility owned by a municipality with a design flow of less than 1 million gallons per day
State Owned
A facility owned or managed by a state agency (state parks, prison, etc.)
Federal
A facility owned by a federal agency (military owned installation, national park, etc.)

Permit Application Forms and Documents

Forms are based on volume of design flow or ownership. Following are forms to apply for, renew, or modify municipal discharge permit.

For New and Renewal

  • To obtain a municipal NPDES permit, file an application package with ADEQ's Water Division. New facilities must submit the package at least 180 days before the expected date of the first wastewater discharge.
  • Existing facilities must submit their application package at least 180 days before the expiration date of the existing NPDES permit.

Use the following documents to apply for a new or renewal major municipal discharge permit:

For Modification

Submit the following documents only as needed:

  • ADEQ Priority Pollutant Scan (PPS) Form

For New and Renewal

  • To obtain a municipal NPDES permit, file an application package with ADEQ's Water Division. New facilities must submit the package at least 180 days before the expected date of the first wastewater discharge.
  • Existing facilities must submit their application package at least 180 days before the expiration date of the existing NPDES permit.

Use the following documents to apply for a new or renewal minor municipal discharge permit:

For Modification

ADEQ has developed three categories of industrial discharge permits.

Individual Industrial Major
Any discharger with a rating score of 80 or more (determined by ADEQ)
Individual Industrial Minor
All dischargers which are not designated as major
General Industrial Discharge Permits
Specific categories of facilities may see coverage through a streamlined general permit process. See the general industrial (non-stormwater) permits rules, activities they regulate, and permitting forms and information.

Permit Application Forms and Documents

Forms are divided according to the discharge activity. Following are forms to apply for, renew, or modify an industrial discharge permit.

For New and Renewal

Submit the following documents:

For Modification

Submit the following documents:

For New and Renewal

Submit the following documents:

Submit the following document only if stormwater is mixed with process water:

For New and Renewal

Submit the following documents:

Submit the following document only if stormwater is mixed with process water:

Wastewater treatment construction permits are also required for small on-site wastewater disposal systems that commonly serve developments or small areas in the treatment of domestic wastewater.

The NPDES Section of ADEQ's Water Division issues state wastewater treatment construction permits under authority of Arkansas Pollution Control and Ecology Commission Regulation No. 6, Section 6.202.

ADEQ does not require the use or installation of particular technologies. Rather, the Clean Water Act requires operators to meet certain performance standards that are based on the proper operation of pollution prevention and treatment technologies identified by EPA . For more information, visit Treatment Technologies.

All wastewater treatment systems must be designed based on the latest edition of "Recommended Standards for Water Works" by the Great Lakes - Upper Mississippi River Board of State and Provincial Public Health and Environmental Managers. This design manual is commonly referred to as “The 10 States Standards” and is updated periodically by a board including 10 Midwestern states and the province of Ontario.

Permit Application Forms and Documents

Following are the application forms and documents to apply for a state construction of wastewater treatment facility permit:

  • ADEQ Form 1
  • ADEQ Construction Permit Application Form

Complete all applicable parts:

  1. General Facility Information
  2. Flow Measurement, Screening and Grit Removal
  3. Activated Sludge
  4. Aeration System
  5. Lagoons
  6. Recirculating Sand Filter
  7. Clarifiers
  8. Sludge Treatment
  9. Disinfection
  10. Flow Equalization
  11. Primary Sedimentation
  12. Trickling Filters
  • Design calculations
  • Plans and specifications signed and stamped by a professional engineer registered in Arkansas
  • Arkansas Department of Health approval letter (for Sanitary Wastewater ONLY)

For New, Renewal, or Modification

Submit the following documents:

Submit the following document only if stormwater is mixed with process water: