General Permit Requirements for Fuel Spill Cleanup - Permit MO-G94

Water Protection Program fact sheet
Division of Environmental Quality Director: Ed Galbraith

Facilities engaged in fuel spill cleanup may need to apply to the Missouri Department of Natural Resources for a Missouri State Operating Permit to cover the discharge of water contaminants to waters of the state or to a municipal separate storm sewer system (MS4).

The original 1948 Federal Water Pollution Control Act, now known as the Clean Water Act, has seen many changes. Among these changes were the 1972 amendments, which included the establishment of the National Pollution Discharge Elimination System (NPDES) created in Section 402 of the act. "NPDES prohibits [discharges] of pollutants from any point source into the nation's waters except as allowed under an NPDES permit." In 1987, the Clean Water Act was amended to include the regulation of certain stormwater classes by NPDES permitting.

Through the NPDES permit program, the Missouri Department of Natural Resources has received authorization to regulate point sources that discharge pollutants into waters of the state. Point sources are generated from a variety of municipal and industrial operations, including treated wastewater, process water, cooling water, and stormwater runoff from drainage systems. The NPDES Storm Water Program has been in place since 1990 and regulates discharges from municipal separate storm sewer systems, construction activities, industrial activities, and those designated by the Environmental Protection Agency due to water quality impacts.

Missouri Industrial Permits
The EPA delegated authority for the NPDES permitting program to the department in 1974. Although the federal government oversees and reviews the Missouri State Operating Permit program, it is the state that issues and enforces these permits. Missouri’s stormwater regulations are located in 10 CSR-20.6.200. These laws require that permits be issued to certain industrial facilities for their discharges. A permit may be required for discharges of water contaminants to waters of the state or to a municipal separate storm sewer system. If the activity does not discharge any water contaminants to either, no permit is needed. If it does discharge water contaminants to one or both or if the industrial activity is listed among the regulated categories and meets certain requirements as outlined in 10 CSR 20-6.200(2), a permit is required.

An industrial activity may be excluded from stormwater permitting if the activity does not expose materials to stormwater as stated in 10 CSR 20-6.200(1)16. Qualified permit holders as well as new applicants that qualify must submit a completed “No Exemption Certification” form (EPA form 3510-11) to the department. This form is available online at:

Who Needs a MO-G94 Permit?
Stormwater and wastewater regulations use the Standard Industrial Classification (SIC) system to determine if an industry is regulated under the law. This classification system was devised by the U.S. Office of Management and Budget to cover all economic activities. Facilities having the SIC code of 1799 (Special Trade Contractors) may need to apply to the department for Missouri State Operating Permit MO-G94 to discharge contaminated water associated with fuel spill clean-up. It is the responsibility of the owner or operator to apply for a MO-G94 permit.

MO-G94 Permit Applicability

Activities that are exempted from obtaining MO-G94:

Permit Application and Fees
Facilities applying to MO-G94 for the first time must submit application Form E (MO 780-0795), which can be found at, along with the appropriate fees. After issuance of the permit, fees will be assessed annually. To request a renewal of MO-G94, application Form E must be submitted at least 30 days prior to the expiration of the general permit along with appropriate fees. If the facility has any questions concerning fees, the facility needs to contact the appropriate regional office. A regional office map is available online at apply for a site-specific permit or if the facility has any questions concerning fees, the facility needs to contact the departments’ Water Protection Program.

Important Permit Dates
Each general and site-specific permit is issued on a five-year cycle. Important dates of each permit are:

Transfer of Permit
A permit may be transferred to a new owner by submitting Application for Transfer of Operating Permit Form (MO 780-1517), which can be found at, along with the appropriate fees.

Termination of Permit
General and site-specific permits may be terminated when activities covered by the permit have ceased and no significant materials are stored in such a way as to come into contact with stormwater. When general permit termination is sought, the permittee must submit Form H (MO 780-1409), which can be found at When a site-specific termination is sought, the permittee must submit a letter. Landfarms must receive closure from the Hazardous Waste Program’s Leaking Underground Storage Tank unit before termination of permit will be granted.

For More Information
Missouri Department of Natural Resources
Water Protection Program
P.O. Box 176
Jefferson City, MO 65102-0176
800-361-4827 or 573-751-1300 office
573-526-1146 fax