AUTHORITY: Implementing Section 17 and authorized by Section 27 of the Illinois Environmental Protection Act [415 ILCS 5/17 and 27].POLLUTION CONTROL BOARD
a) a hydraulic head of between 5 and 25 feet;
b) nozzles, with the size, number, and spacing of the nozzles being dependent on the flow rate, the space, and amount of head available;
c) nozzle diameters in the range of 1 to 1.5 inches to minimize clogging; and
d) an enclosed basin to contain the spray, with any openings protected by a 24-mesh screen.