(a) The department shall not use sampling or laboratory results if the department determines that the data is:
- (1) From an obvious sampling or laboratory error from known errors in collection, processing, or transcription;
- (2) A technical impossibility;
- (3) Inconsistent with the preponderance of data elements for the same parameter from the same source or system; or
- (4) From a laboratory not accredited in accordance with Env-C 300 when such accreditation is required for the particular analysis.
- (b) Unless otherwise noted, any result that is below the detection limit of a test method approved for use pursuant to Env-Dw 707.07 shall be calculated as zero for the purpose of determining compliance.
- (c) All chemical concentration data submitted to the department for compliance purposes shall be reported in the same units used for the specified MCL, MCLG, SMCL, or MRDL, as applicable.
- (d) If sample results are not acceptable based on the criteria in (a), above, the O/O shall collect a replacement sample within 7 days of notification.
Source. #9700, eff 5-1-10; amd by #10771, eff 2-1-15; ss by #12666, eff 1-1-19