3701-31-04 ( D )(6)(a) / ORP reading shall be 650 millivolts or greater.
Repeat ORP reading was below 650 mv Frequent violation.
Have the ACC unit inspected to determined why the ORP is low Sensor replaced but not sure if operating properly or recording properly. Either way the unit needs to be serviced and kept in proper range.. Correct By: 26-Mar-2020