Laserfiche WebLink
Mr Lucas West, DRMS <br /> Page 2 of 3 <br /> October 10,2022 <br /> Climax anticipates the final option that is chosen will require modification to or will require a <br /> new Environmental Protection Facility (EPF) and will submit a technical revision (TR) for <br /> the chosen option, as required. <br /> Water Quality Sample Results <br /> Two samples were collected at Climax CDPS Permit Outfall 001A during the event. The first <br /> sample was a grab sample collected at 12:45 pm on the day of the event and analyzed at the onsite <br /> analytical lab for pH (7.7 standard units [s.u.]) and total manganese (300 µg/1). <br /> The second sample was a fixed-laboratory grab sample collected at 12:50 pm at Outfall 001A(the <br /> compliance point on Tenmile Creek) on the day of the event and analyzed for Climax's CDPS <br /> Permit analytical suite. Those data were previously reported to DRMS on August 17, 2022, via e- <br /> mail (Diana Kelts to Dustin Czapla with DRMS). They are summarized below in Table 1 with <br /> comparison to applicable CDPS permit limits at Outfall 001A. <br /> Table 1. Outfall 001A Sample Analytical Results <br /> Ta gon <br /> ZYLr, RE <br /> �►na e_ ,.Anal icalMethod ;� rr,Units i2.30P ?' <br /> Conductivity Field mhos/cm 1203 <br /> H Field Standard units 7.6 6.5-9.0 <br /> Temperature Field °C 12.1 <br /> Boron, Total M200.8 ICP-MS m /I 0.0028 <br /> Cadmium, PD M200.8 ICP-MS m /I 0.000251 0.0012 <br /> Chromium, PD M200.8 ICP-MS m /I ND 0.0005 <br /> Iron, TR M200.8 ICP-MS m /I 0.167 <br /> Manganese, PD M200.8 ICP-MS m /I 0.136 2.618 <br /> Molybdenum, TR M200.8 ICP-MS m /I 0.0242 <br /> Nickel, PD M200.8 ICP-MS m /I 0.00125 <br /> Selenium, PD M200.8 ICP-MS m /I 0.00012 <br /> Zinc, PD M200.8 ICP-MS m /I 0.0456 <br /> Sulfide as S SM4500S2-D m /I ND 0.02 <br /> Notes: <br /> ND[0.02]—The constituent was analyzed for, but was not detected above the level of the associated value <br /> PD—potentially dissolved <br /> TR—total recoverable <br /> S—sulfur <br /> °C—degrees Celsius <br /> µmhos/cm—micromhos per centimeter <br /> mg/I—milligrams per liter <br /> *-Limits listed are most conservative(lowest)value of 30-Day Average or Daily Maximum,if available <br /> Full water quality results are contained in Attachment A to this submittal. <br /> Secondary Containment Device Evaluation <br /> Seepage from Mayflower TSF is intercepted and collected via a network of shallow drainage <br /> collection pipes along the TSF dam and abutments. This seepage is daylighted to the surface and <br /> routed to two lined seepage collection ponds (Mayflower Seepage Collection Ponds). The <br /> Mayflower Seepage Collection Ponds serve as initial seepage collection basins that then <br />