2023-10-30_PERMIT FILE - M2023015 (2)

Home Browse Search

v ppm 4 3 12 21 11 42 18 19 w ppm 0.1 0.1 0.5 0.4 0.4 3.1 10.5 12 Y ppm 0.8 1 5.2 6.2 5.1 11 8.9 9.2 Zn ppm 390 156 23 11 14 9280 5700 5290 Zr ppm 0.8 1.8 23.6 27.8 23.7 23.6 35.6 34.7 Deportment of heavy metals in the sorting plant is demonstrated by the attached analytical results: Table 3: Sample 1094 London Mine - assay results KCA Bucket 1 Bucket 2 Bucket 3 Total Assay 1,oz Assay 1,oz Assay I.oz Assay 2.oz Assay 2,oz Assay 2,oz Average. Sample No. 0 Client r Test Wt.kg Wt,kg Wt.,kg Wt_kg Au'st Autst Auist AuM Aufst Autst oz Au/st 93427A 1 1094 441.1.2 26,74 26.74 01480 0.1550 01580 02650 0.1670 0.1700 0.1772 93428 A 2 1094 441-2? 25.72 2072. 46.44 0.0163 0.0185 0.0146 00193 OA166 0.0136 0.0165 93429 A 3 1094 441.3.1 24.98 24.98 0.0127 0.0157 0.0044 0-0260 0,0062 0.0130 93430A 4 1094 4413.2 25.50 7,90 10.72 44,12 0.0054 0,0048 0.0062 0.0054 0,0055 KCA Bucket 1 Bucket 2 Bucket 3 Total Assay 1,oz Assay 1,oz Assay 1,oz Assay 2,oz Assay 2,oz Assay 2,oz Average. Saaple No. Client Test Wt_kg Wt.,kg Wt-kg Wt_kR ApVst AgIst A /st Airst AWst A 'st ozA st 93427 A 1 1094 441.1.2 2634 26.74 1.20 115 1.36 134 126 93428 A 2 1094 441.2 2 25.72 20 72 46,44 0.10 0,11 Oil 0.10 0.10 93429A 3 1094 441.3.1 24.98 24.98 0.03 0.02 Obl 0.03 0.03 93430 A 4 1094 441.3.2 25.50 7.90 1032 44.12 0.03 0.03 002 0.03 0.03 Figure 3 Heavy metal concentration ratios:Au 10.7x,Ag 12.6x Sorted product was analyzed for total metals, sulfur and other constituents. Samples 813-817 represent sorted (inert)waste. (7) The Environmental Protection Facilities associated with this operation involve the operations pad where stockpiling and sorting will occur,sediment control impoundments/berms,sorting equipment, and buildings onsite. Being an operation involving dry materials, no impoundment liner and no concrete pad are deemed necessary. The capacity of the stockpile area and operations pad will not be exceeded, ensuring no release or excursion of materials or contaminants. Nevertheless,the sorter machinery will be located within a 60 foot wide, 60 foot long and 30 foot tall industrial building attached to a baghouse for negative air pressure into the building,so that dust will be contained from the sorting operation.The building will be located and affixed to a concrete pad.Also,the stockpile area will be graded to drain toward the sediment pond connected to Outfall 001 of CDPS Permit No.C00038334,which is monitored continuously for flow,and sampled weekly for metals, pH,and other permitted contaminants. The surfaces to be operated upon are earthen. They will be graded and compacted,with earthen berms at the margins. Proper drainage and slope stability will ensure overall containment within the permit. The buildings to be utilized for storage of equipment, materials and fuels currently exist onsite in functional condition. These will be monitored and maintained for the duration of this permit. No stockpiles of mineralized materials will be left on the stockpile area or operations pad for significant length of time;all will be either removed from the site or stably placed in permanent locations. All fuel, lube and other fluids will be securely stored away from weather and with adequate impermeable secondary containment. Buildings will be maintained and secured when the site is not active.