3701-31-04 (B)(1)(c) / Minimum disinfection residual shall be maintained as required.
Critical Chlorine disinfectant residual was less than 1 ppm for the pool. Observed no chlorine in the pool.
Do not operate the pool when the disinfectant residuals are less than what is required. Ensure the chlorine disinfectant residual is at 1 ppm or above prior to placing the pool back into operation.