3701-31-04 ( D )(6)(a) / ORP reading shall be 650 millivolts or greater.
ORP reading was below 650 mv
Correct disinfectant level so that ORP is a minimum of 650ppm .
3701-31-04 (B)(1)(c) / Minimum disinfection residual shall be maintained as required.
Critical Free chlorine level was 0ppm.
Sprayground closed until minimum of 2.0 ppm residule was reached.