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) Equipment that will automatically shut down a water treatment process is acceptable, provided restart procedures are manual.
b) Automatic startup must be allowed for treatment plants that treat only groundwater and have only unit processes not exposed to contamination. Examples include iron removal by protected aeration, enclosed retention and pressure sand filtration or ion exchange softening in a pressure vessel operated in a downflow mode.