OAR 333-061-0077: Composite Correction Program & Comprehensive Performance Evaluations

(1) All CPE reports as defined by OAR 333-061-0020(28) and this rule shall be conducted by the Authority. (2) Any public water system using surface water or groundwater under direct surface water influence which treats the water using conventional or direct filtration treatment is subject to the Composite Correction Program, including CPEs, as determined necessary or appropriate by the Authority. (3) Any public water system using surface water or groundwater under direct surface water influence which treats the water using conventional or direct filtration treatment that has a measured filtered water turbidity level greater than 2.0 NTU from any individual filter in two consecutive measurements taken 15 minutes apart in each of two consecutive months as stated in OAR 333-061-0040(1)(d)(B) (ii)(IV) is required to have a CPE conducted on that public water system's water treatment facility. (4) The CPE report shall be completed by staff and sent to the water system following the site visit. The content of the CPE report shall include, at a minimum, the following components: An assessment of the water treatment plant performance from current and historical water quality data, an evaluation of each major (treatment) unit process, an identification and prioritization of the water treatment plant performance limiting factors, and an assessment by the Authority if additional comprehensive technical assistance would be beneficial to the water system. The CPE results must be written into a report and submitted to the public water system by the Authority. (5) The public water system receiving the CPE report must respond in writing to the Authority within 45 days (for systems serving at least 10,000 people) or 120 days (for systems serving less than 10,000 people) of receiving the report as required by OAR 333-061-0040(1)(k). The response of the public water system must include: (a) The plan the public water system will follow to resolve or correct the identified performance limiting factors that are within the water system's (and its governing body) ability to control; and (b) The schedule the public water system will follow to execute the plan. (6) The public water system must take corrective action through the CCP according to the schedule identified in subsection (5)(b) of this rule to resolve the performance limiting factors identified. Failure by the water system to take corrective action to resolve the performance limiting factors constitutes a violation of these rules.