3701-31-04(D)(6)(a)(1) / Combined chlorine shall not exceed 1.0 ppm.
Observed that the combined chlorine was at 2.5ppm.
In order to reduce the risk of health hazards, ensure that the combined chlorine does not exceed 1.0 ppm. Treat the pool so that the combined chlorine is less than 1 ppm. Discussed with PIC.