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Steve Kelton <br /> From: Steve Kelton RECEIVED <br /> Sent: Thursday, March 2, 2023 3:39 PM <br /> To: Scott - DNR, Eric APR 0 7 2023 <br /> Subject: RE: [EXTERNAL] Re:TR for M-2001046 <br /> DIVISION <br /> IV MINING AND SAFETY <br /> Hi, Eric. <br /> Thanks for taking a look at our TR. Brannan is glad to consider additional water quality sampling—as is reasonably necessary—in the future but not as some after-the-fact requirement. <br /> When you receive our official TR and write your comments, please look at the monitoring situation from our standpoint. First,the May 6, 2021, Preliminary Review of our AM01 only called for 5 quarters of <br /> water level—not water quality—monitoring: <br /> The only depiction of monitoring wells provided at this time appears to be on the Reclamation Maps, <br /> however there appear to be some large gaps between some of the locations shown. is there any water <br /> level or chemistry data available for these wells? DRMS normally requires-at least 5 quarters of water level <br /> monitoring prior to installation of slurry walls or dewatering activity to determine ambient conditions. <br /> We have provided five quarters and more of water level monitoring. <br /> Second, our Groundwater Monitoring Plan (which Kyle Regan emailed on June 24, 2021, and is posted on the DRMS database), also made it clear that we planned to monitor water quality annually once mining <br /> begins: <br /> R <br /> To establish that mining has had no negative affect on water quality in the area, RMCC will sample the wells listed above <br /> annually during the month of June. The water quality samples will be tested for the analytes listed in Tables 1 through 4 <br /> of "The Basic Standards for Ground Water," excluding the radiological section of Table 1 . RMCC will notify DRMS within <br /> 7 days of receiving a lab report that indicates any of the standards set forth in Tables 1 through 4 have been exceeded. If <br /> a lab report indicates an exceedance, a new sample will be taken to verify the exceedance and discount lab <br /> contamination. Any water quality lab results will be included in the DRMS annual report for the site. <br /> I <br />