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To:Jared Ebert <br /> Date: February 27,2018 <br /> Page 5 <br /> i. MW-13 has been added to the groundwater quality sampling plan. <br /> ii. the following analytes have been added to the analyte list and the sampling matrix <br /> as appropriate(units are mg/L): <br /> 1. Aluminum 5.00 <br /> 2. Boron 0.75 <br /> 3. Cobalt 0.05 <br /> 4. Copper 0.20 <br /> 5. Lithium 2.50 <br /> 6. Manganese 0.05 <br /> 7. Vanadium 0.10 <br /> 8. Zinc 2.00 <br /> iii. The Colorado Department of Public Health and Environment Water Quality <br /> Control Commission Regulation number. 41 - The Basic Standards for Ground <br /> Water does not require that calcium, magnesium, potassium, and sodium be <br /> analyzed and does not provide standards for them. LRM has these chemicals <br /> analyzed for its own purpose <br /> i. The "reporting limit" column in the sampling matrix table has been titled <br /> "standard." The sampling matrix table includes a column that provides the <br /> method detection level(MDL) for each analyte/method <br /> ii. LRM acknowledges that they must submit a technical revision and receive <br /> approval from the Division to revise the baseline water quality sampling plan to <br /> sample less than five quarters <br /> iii. LRM acknowledges that they will need to submit a technical revision and receive <br /> approval from the Division to modify the frequency of ground water quality <br /> monitoring <br /> iv. LRM commits to initiating immediate mitigation measures should groundwater <br /> mounding to the west of the site during the mining operations and after <br /> reclamation trigger the two foot target level. Also, LRM commits to notifying the <br /> Division within 24 hours if a trigger level for either drawdown or mounding is <br /> observed <br /> RULE 6.4.12 EXHIBIT L - RECLAMATION COSTS <br /> Comment 46a <br /> The information necessary to calculate the cost of reclamation was not submitted. In the <br /> case of financial warranty forfeiture, the Division would be responsible for structure <br /> demolition of office and processing facilities, backfilling and grading, topsoiling and <br /> revegetation of the affected land. Upon review of the mining and reclamation plan, the <br /> Response to DRMS Adequacy Review 3 comments T E L E STO <br />