3701-31-04 (B)(1)(c) / Minimum disinfection residual shall be maintained as required.
Critical Chlorine residual at .5 ppm, which is less than the required 1.0 ppm.

3701-31-04 (C)(2) / pH is within 7.2 to 7.8
Repeat pH was outside the range of 7.2 to 7.8.
Treat the pool water so that the pH is within the acceptable range.