37.12.341    REPORTING REQUIREMENTS

(1) All results of samples collected from a public water supply system and accepted by the laboratory for analysis that exceed a maximum contaminant level (MCL) or that trigger additional actions under ARM Title 17, chapter 38, subchapter 2 must be promptly, on the day the result is determined or no later than noon the next working day, reported by the laboratory to the Montana Department of Environmental Quality (MDEQ). Results must be reported to the Public Water Supply Section of the MDEQ either electronically to [email protected] or by telephone to (406) 444-1947. The written sample result must be submitted to MDEQ on forms and in formats approved by the MDEQ within 48 hours of completion of the analysis. When a maximum contaminant level as set out in ARM Title 17, chapter 38, subchapter 2 is found to be exceeded in any sample, the reporting laboratory accepting the sample for analysis from the water supplier must notify the water supplier of that result within 24 hours after the analysis is completed.

(2) The analytical result of all microbiological or chemical samples accepted by the laboratory for analysis, other than those which are defined in ARM 37.12.341(1), must be reported to the MDEQ within a week after completion of the analysis. The results must be submitted on forms and in formats approved by the MDEQ.

History: 50-1-202, MCA; IMP, 50-1-202, 75-6-106, MCA; NEW, 1999 MAR p. 291, Eff. 2/12/99; AMD, 2003 MAR p. 2442, Eff. 10/31/03; AMD, 2011 MAR p. 2286, Eff. 10/28/11.