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were measured in the stock tank located at the spring. The field parameters at PR Spring <br />are consistent with historical records. <br />Previous flow rates and field parameters at PR Spring are summarized in Attachment 5. <br />Historical analytical data from PR Spring is summarized in Table 2. <br />Monitoring Well W -1 <br />Monitoring Well W -1 was installed on October 12, 2008 for the purpose of characterizing <br />and monitoring groundwater quality downgradient of the waste rock storage area. <br />Monitoring Well W -1 was measured for the static groundwater level on March 18, 2013. <br />The water level at Monitoring Well W -1 is consistent with previous measurements. <br />Historical water levels and field parameters are summarized in Attachment 6. Historical <br />analytical data from Monitoring Well W -1 are summarized in Table 3. <br />Lumsden Canyon Seep <br />The Lumsden Canyon Seep (also referred to in earlier reports as Lumsden Canyon <br />Spring) was monitored for field parameters and sampled in June and December of 2008. <br />This location was monitored by Western Water & Land, Inc. during hydrologic <br />reconnaissance required by BLM stipulations to the Plan of Operations. <br />The field parameters are summarized in Attachment 7 and the analytical data from the <br />Lumsden Canyon Seep samples are summarized in Table 4. No further sampling or field <br />parameter measurement events are scheduled at this time. <br />Rajah 49 Thornton Portal <br />Water was observed flowing from the Rajah 49 Thornton Portal and sampled in 2009, <br />2010, 2011 and 2012. Field parameters and a sample were collected on May 30, 2012. <br />The estimated flow rate and measured field parameters are included in Attachment 8 of <br />this report and the analytical data is summarized in Table 5. Energy Fuels will continue <br />to include the Thornton Portal in future annual seep surveys and collect samples for <br />analysis if discharge is observed. <br />Waste Rock <br />No ore was mined and no waste rock was produced in the First Quarter 2013. Because <br />the Whirlwind Mine is currently in temporary cessation status with only maintenance and <br />monitoring activities being conducted, Energy Fuels has suspended the quarterly waste <br />rock sample collection until such time that mining operations resume and waste rock <br />removal from the mine commences. <br />Production rates of ore and waste rock are summarized in Attachments 9 and 10, <br />respectively. Analytical data from previously collected waste rock samples is <br />summarized in Table 6. <br />Sediment Pond <br />The sediment pond has been monitored since its construction in November 2008 in <br />accordance with DRMS stipulations. Although storm events and significant snow melt <br />events have occurred, none have resulted in stormwater discharge from the pond. As a <br />result, no stormwater samples have been collected from the pond to date. Energy Fuels <br />2 <br />