2015-06-23_REVISION - M1977004 - Laserfiche WebLink

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Mr. Dustin Czapla Page 7 of 8 should be implemented. The program includes monitoring piezometers within the underground workings and down -gradient surface water locations across the property (Figure 2). At minimum, performance monitoring will include field measurements (pH, electrical conductivity, temperature, dissolved oxygen, and oxidation reduction potential) and uranium, phosphate, and bromide laboratory analyses, at the monitoring points and frequency provided in Table 1. Water levels in the existing and proposed piezometers will also be monitored monthly. Piezometer Plugging and Abandonment The existing and proposed piezometers will be used as part of the long-term monitoring program associated with the pilot test and full-scale implementation. When warranted, the piezometers will be plugged in accordance with Rule 16 of the Water Well Construction Rules. ' Summary This request for a TR to reclamation permit M-77-004HR to perform pilot -scale uranium ' mass load reduction at the Pitch Reclamation Project describes the general plans for injections. The proposed activities include piezometer development and pilot -scale injections of a mixture of phosphate and conservative tracers at pH > 4 into the ' underground mine workings. Findings associated with the pilot -testing will be used to determine if full-scale implementation should be considered for the 2016 field season. 1 L 1 If you have any questions or require further information regarding this submittal, please contact me at (801) 990-3746. Sincerely, Die Davis 9q behalf of Bill Ferdinand 0 "-U Z . -4 Bill Ferdinand Homestake Mining Company of California Director of Environment Pitch Reclamation Project CC: R. Means — DRMS D. Davis — HMC P. DeDycker — ARCADIS File 460 West 50 North, Suite 500, Salt Lake City, Utah 84101 TEL -(801)99D-3746