NAC445A.536. Maintenance of records.

     1. Each supplier of water shall maintain accurate and complete records of the operation of each treatment plant using surface water or groundwater under the direct influence of surface water. The records must include:

     (a) The results of all monitoring conducted in accordance with NAC 445A.527;

     (b) The date of any maintenance or inspection of a filter and the results of the inspection, including any evaluation of a pressure filter required by subsection 8 of NAC 445A.533;

     (c) The quantity of water produced;

     (d) The hours of operation;

     (e) The rates of flow at the plant;

     (f) The rates of filtration;

     (g) The rates of backwash; and

     (h) The dates and description of failures of major equipment or unit processes and the action taken to correct these failures.

     2. Each supplier of water shall maintain records in accordance with 40 C.F.R. § 141.722, as adopted by reference in NAC 445A.4525.

     3. Unless otherwise specified in 40 C.F.R. § 141.33, as adopted by reference in NAC 445A.4525, or as determined by the Division or the appropriate district board of health, the records of a treatment plant must be retained for not less than 3 years.

     (Added to NAC by Bd. of Health, eff. 11-29-90; A by Environmental Comm’n by R126-05, 10-31-2005; R194-08, 10-27-2009)