1. A. All irrigation systems into which any animal waste will be injected shall be equipped with one or both of the following systems:

   1. 1. An antipollution system, approved by the State Board of Agriculture, capable of preventing the backflow of such animal waste into the groundwater. The system shall include a safety check valve with a removable inspection port. Anti-syphon vent, and low-pressure escape drain. An interlock device shall be installed on pumps that pump the animal waste so that if a fresh water irrigation pump shuts down, the pump that pumps the animal waste will also immediately shut down, preventing the chance of leakage past the check valve; or
   2. 2. A system which provides for a complete and total disconnection between the flow of fresh water and the flow of animal waste. Such system shall be capable of a manual disconnection between fresh water and the animal waste.
2. B. The Department of Agriculture shall make annual on-site inspections examining the operative status of the check valves and interlock devices.

3. C. The operator of said irrigation system shall be responsible to ensure:

   1. 1. That the valves and interlock devices remain operative between annual inspections by the Department of Agriculture; or
   2. 2. Complete disconnection from fresh water when introducing animal waste into the system.

Added by Laws 1997, HB 1522, c. 331, § 11, eff. September 1, 1997; Renumbered from 2 O.S. § 9-205.5 by Laws 2005, HB 1467, c. 292, § 25, emerg. eff. July 1, 2005.