Section 653.112  Automatic Equipment

a)         Select automatic equipment based upon reliability, ease of maintenance, and specific design factors.  Equipment which will automatically shut down a water treatment process is acceptable, provided restart procedures are manual.

b)         Automatic start up shall be allowed for treatment plants which treat only ground water 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.