Laboratory operator

(a) Except as provided in 252:710-3-31(b)(4), all duties relating to the laboratory analysis of water quality samples from water treatment plants, groundwater systems, storage and distribution systems (including purchased-water systems) must be performed by or under the general supervision of a laboratory operator certified by the DEQ. (b) Operators of laboratories owned by or associated with waterworks/wastewater works shall record the results of all laboratory analyses for each entry at each facility in a bound volume for each facility and shall date and sign each entry., database, or other software application. Records shall be kept on file at the laboratory for inspection and review for ten (10) years for waterworks and three (3) years for wastewater works. Each database or other software application used in lieu of a bound volume shall be protected by some form of electronic authorization. All entries shall be date and time stamped and include an audit trail. 3 (c) Laboratory operator certification is not required for waterworks or wastewater works laboratory operators performing the minimum analyses required by rules of the Department for purchased water systems, groundwater systems using no treatment other than chlorination for disinfection, or for total retention lagoon facilities unless the Department has determined that additional laboratory tests, required to be performed by a certified laboratory operator, are necessary for proper operation.