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laboratory data are provided in the Second Quarter Report.EFRI will continue to include the Rajah <br /> Spring in future annual seeps and springs surveys. <br /> Waste Rock <br /> No ore was mined and no waste rock was produced in the first quarter 2022. The Mine is currently <br /> in temporary cessation status with only maintenance and monitoring activities being conducted. <br /> EFRI has suspended the quarterly waste rock sample collection until such time that mining <br /> operations resume and waste rock removal from the Mine recommences. <br /> Production rates of ore and waste rock are summarized in Appendix 1, Attachments 9 and 10, <br /> respectively. Analytical data from previously collected waste rock samples are summarized in <br /> Appendix 2, Table 6. <br /> Sediment Pond <br /> The sediment pond has been monitored since its construction in November 2008 in accordance <br /> with the Colorado Division of Reclamation, Mining, and Safety stipulations. Although storm <br /> events and significant snow melt events have occurred, none have resulted in storm water <br /> discharge from the pond. As a result, no storm water samples have been collected from the pond <br /> to date. EFRI will continue to monitor the sediment pond for discharge and will collect samples <br /> in the event that a discharge is observed. <br /> Dolores River <br /> In accordance with BLM stipulations to the Mine permit, the Dolores River is required to be <br /> monitored for selenium upstream and downstream from the confluence of Lumsden Creek when <br /> all of the following conditions are met: <br /> 1) The Mine treatment plant is discharging treated water, <br /> 2) There is continuous flow from the middle tributary of Lumsden Creek to the Dolores River, <br /> and <br /> 3) Selenium levels have been in exceedance of the CDPS permit effluent limits in the past <br /> two years. <br /> Because water treatment of mine water has been suspended, it was unnecessary to monitor <br /> Lumsden Creek for discharge to the Dolores River in the first quarter 2022. EFRI will commence <br /> monitoring the Dolores River for discharge from Lumsden Creek and take samples, as necessary, <br /> at such time that treatment and discharge of mine water resumes. <br /> Hydrological Monitoring Summary <br /> Refer to Appendix 2, Table 7 for the hydrological compliance monitoring summary and status for <br /> the Mine. <br /> 3 <br />