Pesticide Operational Area and Containment FAQs | South Dakota Department of Agriculture

Pesticide Operational Area and Containment FAQs

What is an Operational Area?

An “Operational Area” is any place where:

  • Pesticides are transferred between containers.
    • Including transfer to application equipment.
  • Pesticides are loaded, unloaded, mixed, repackaged, or refilled.
  • Pesticides are cleaned, washed, or rinsed from application, storage, handling, or transportation equipment.
  • Areas where pesticides are received or distributed in the manufacturer’s original containers that remain sealed are not considered to be operational areas.

What is an Operational Area Containment?

An “Operational Area Containment” is any structure or system that is:

  • Either stationary or portable.
  • Designed to intercept or contain pesticide discharges; including pesticide container or equipment wash water and rinsates.

When Is an Operational Area Containment Required?

An “Operational Area Containment” is required by state regulation if:

  • More than 1,500 lbs. active ingredient are transferred, loaded, unloaded, mixed, repackaged, or refilled during a calendar year; or
  • Either concentrated or diluted pesticides are cleaned, washed, or rinsed from application, handling, storage, or transportation equipment for more than 30 days during a calendar year; or
  • The “Operational Area” is less than:
    • 150 feet from a lake, stream, streambed, or wetland; or
    • 150 feet from a well; or
    • 200 feet from a populated building; or
    • 500 feet from a well used as a Public Water Supply.

What is Required Before I Build or Operate an Operational Area Containment?

  • South Dakota pesticide regulations require that all Operational Area Containments be registered with the Department of Agriculture prior to operation.
  • In order to register an Operational Area Containment the operator must submit to the Department of Agriculture:
  • The Department of Agriculture reviews the plans and specifications to determine if the proposed Operational Area Containment meets the criteria outlined in state regulations. If the plans and specifications meet state standards, registration of the Operational Area Containment is granted.
  • If the water supply that services an Operational Area Containment is a potable water supply, an anti-backflow device is required. Acceptable anti-backflow devices include:
    • An air gap separation; or
    • A reduced pressure principle device that meets the American Water Works Association Standard C511-89.
  • All Operational Areas are required to have a written Pesticide Handling and Discharge Response Plan

Other Requirements for Operating an Operational Area Containment?

  • Carryout activities in a manner that will prevent escape of discharges.
  • Seal all cracks when necessary.
  • Promptly recover discharges and other accumulated materials, if these materials contain pesticides they must be disposed of in accordance with pesticide disposal regulations. Pesticide Disposal Safety
  • Accumulation of precipitation may be treated as surface runoff if the Operational Area Containment has been cleaned after the last use.

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