Section 604.220  Invasive Mussel Control

a)         When chemical treatment for the control of invasive mussels is permitted by the Agency:

1)         chemical treatment must be in accordance with Subpart K;

2)         plant safety items, including ventilation, operator protective equipment, eyewashes/showers, and cross connection control must be provided;

3)         solution piping and diffusers must be installed within the intake pipe or in a suitable carrier pipe.  Provisions must be made to prevent dispersal of chemicals into the water environment outside the intake.  Diffusers must be located and designed to protect all intake structure components; and

4)         The chemicals feeder must be interlocked with plant system controls to shut down automatically when the raw water flow stops.

b)         When alternative control methods are proposed for the control of invasive mussels, appropriate piloting or demonstration studies must be provided to the Agency for approval.