Laserfiche WebLink
<br /> <br />Water Quality Chronology <br />Date Event/Activity <br />July 8, 1998 Elevated TDS first detected at M-11 R on July 8, 1998 and a <br />verification sample was collected on August 10, 1998, which <br />confirmed the initial result. <br />September 24, 1998 In accordance with procedures outlined in TR-15, BMRI <br />submitted to DMG a Response Plan which described the <br />methods applied to characterize the hydrologic and <br />geochemical system in the vicinity of the West Pit. <br />October 1998 BMRI collected additional groundwater samples in October <br />from locations in the vicinity of the West Pit; sulfate <br />concentrations at M-11R exceeded the permit condition <br />value. <br />October 27, 1998 On October 27, 1998, BMRI identified a seep adjacent to the <br />Rite Secn. <br />October 28, 1998 Verbal notification regarding the seep was given to DMG <br />and CDPHE. <br />