This permit authorizes the discharge of biological pesticides/ herbicides or chemical pesticides/ herbicides that leave a residue. This permit requires that operators implement site-specific control practices and other pest management strategies that are designed to minimize discharges of pesticides/ herbicides to waters of the state. Any pesticide operator that applies pesticides within one of the four pesticide use categories listed below must obtain authorization under this permit.

  1. Mosquitoes and Other Flying Inspect Pest Control
  2. Aquatic Weed and Algae Control
  3. Aquatic Nuisance Animal Control
  4. Forest Canopy Pest Control

Irrigation return flow and agricultural stormwater runoff do not require this permit.

Length of Permit

The department issues this general permit for a five-year period. The effective date is Jan. 1, 2022 and expires Dec. 31, 2026. If a facility applies for and receives this permit on Feb. 18, 2023, their permit will expire Dec. 31, 2026. 

Laws, Rules and Regulations

How to Apply

Applications

Fact Sheets

Fees

  • $150 annually for a permit by rule and for a pesticide applicator permit.
  • $100 annual permit fee - chemical fertilizer or pesticide 

Timeline/ Process

Operators will be authorized to operate under this permit 10 days after the department receives the completed application. While not required, operators are encouraged to mail applications to the department using certified mail delivery confirmation, with return receipts, or other similar method or email the application to cleanwaterpermits@dnr.mo.gov. The department will respond to applications with an email or letter documenting receipt of an application.

Public Participation

Public notification of the issuance of this general permit to an individual applicant is not required by state regulations. Public notices are issued on this master general permit every 5 years. The only exception to this rule, 10 CSR 20-6.020, is when a facility applies for the first time the following master general permits.

  • Airport
  • Chemical manufacturing
  • Fabricated structured metal
  • Foundries
  • Limestone and rock quarries
  • Lubricant manufacturing
  • Petroleum storage greater than 50,000 gallons
  • Wood treaters

Administrative Hearing Commission

Anyone who is adversely affected by the director's decision to issue, deny, suspend or revoke a permit must appeal within 30 days of the decision to the Administrative Hearing Commission as provided by 621.250.3 RSMo. All appeals must be filed by petition and send to:

Administrative Hearing Commission
PO Box 1557
Jefferson City, MO 65102
Phone: 573-751-2422
Fax: 573-751-5018
Website: Administrative Hearing Commission

Requirements

Reporting

Permittees may be required to submit monitoring reports and meet sampling requirements. The number of reports and samples and timeline to submit documents may vary depending on the type of facility, processes, discharges and activities. A detailed list of these requirements are included within the Pesticide Applications MOG870000 master general permit.

  • The facility must register in the department’s eDMR system through the Missouri Gateway for Environmental Management (MoGEM) before the first report may be due.
  • Spill reporting: any emergency involving a hazardous substance must be reported to the department’s 24-hour Environmental Emergency Response hotline at 573-634-2436 at the earliest practicable moment after discovery. These reporting requirements apply when the spill results in chemicals or materials leaving the permitted property or reaching waters of the state.
  • The permittee shall give notice to the department as soon as possible of any planned physical alterations or additions to the permitted facility when the alteration or addition could significantly change the nature or increase the quantity of pollutants in the discharge. The permittee shall also notify the alteration or addition results in a significant change in disposal practices and may justify the application of permit conditions different from or absent in the current permit.
  • Reporting Non-detects: The permittee shall not report a sample result as “non-detect” without also reporting the method detection limit or the highest reporting limit; whichever is higher.

Standard Condition Part I

This document of standard conditions incorporate permit conditions as required by 40 CFR 122.41 or applicable state statues or regulations.  These minimum conditions include sampling, monitoring and recording; reporting requirements; bypass and upset requirements; and administrative requirements.

Renewal

Unless terminated, the permittee shall submit the Form E Application for General Permit Under Missouri Clean Water Law MO 780-0795 no later than 30 days prior to the permit’s expiration date for renewal. When a facility submits a timely and complete application and the department is unable through no fault of the permittee to issue a renewed permit prior to expiration of the previous permit, the terms and conditions of the expired permit are administratively continued and will remain fully effective and enforceable until such time when a permit action is taken. Failure to submit a renewal application is a violation of the Missouri Clean Water Law.

Resources

Wastewater Construction Permit

This master general permit does not cover construction activities that may be required as part of the project. If you plan to construct, install or modify any earthen basin, collection system or wastewater treatment facility, you may be required to obtain a Wastewater Construction Permit.

Land Disturbance Permit

This master general permit does not cover land disturbance activities or construction of earthen basins. Land disturbance activities disturbing one or more acres of total area for the entire project or less than one acre for sites that are part of a common promotional plan of development may require a land disturbance permit.

Major Water User

Any surface or groundwater user with a water source and the equipment necessary to withdraw or divert 100,000 gallons (or 70 gallons per minute) or more per day combined from all sources from any stream, river, lake, well, spring or other water source is considered a major water user in Missouri. All major water users are required by law to register water use annually. 

Federal Insecticide, Fungicide and Rodenticide Act FIFRA

Receiving a Pesticide Applications MOG870000 master general permit from the department neither supersedes nor removes liability for compliance with other federal laws and regulations that pertain to the application of pesticides. For example, this permit does not negate the requirements under the Federal Insecticide, Fungicide and Rodenticide ACT. 

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