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September 20, 2017 C-1981-018/Deserado Mine JDM <br /> <br /> <br />Number of Partial Inspection this Fiscal Year: 2 <br />Number of Complete Inspections this Fiscal Year: 1 <br /> <br /> Page 3 of 9 <br /> <br />- A heavy infestation of cattails has been established in the pond. To ensure that the capacity of the pond is <br />not compromised the vegetation should be managed. <br />Pond PP-1 is a concrete pond that was holding water and stable at the time of the inspection. <br />Pond PP-2 contained water with no discharge noted. Embankments were stable and well vegetated with no <br />problems noted. A heavy amount of algae is noted in the pond with no noticeable effects observed. <br />The fresh water lagoon contained water and was stable with no problems noted at the time of the inspection. <br />Pond RP-1 was dry at the time of the inspection. Embankments were stable and well vegetated at the time of the <br />inspection. The primary and emergency spillways were in compliance with no problems noted. <br />Pond RP-2/3 was impounding a small amount of water in the upper cells and the lower cell at the time of the <br />inspection. No discharge was noted. The embankments were stable and well vegetated at the time of the <br />inspection. <br />Pond RP-4 was dry with no evidence of recent discharge at the time of the inspection. The pond embankments <br />were stable. No problems were noted with the spillways at the time of the inspection. <br />Pond RP-5a was dry at the time of the inspection. The combination primary/emergency spillway found to be in <br />compliance with no problems noted. The embankments were well vegetated and stable. <br />Pond RR-1 was dry at the time of the inspection. Embankments were stable with no problems noted. Primary <br />riser and emergency spillway found to be in compliance. <br />Pond SS-1 was observed from the Slot Storage pad and was dry, with no discharge at the time of the inspection. <br />Embankments appeared stable and well vegetated with no signs of damage. <br />Pond SS-2 was dry at the time of the inspection. No problems were noted. Embankments appeared stable with <br />good vegetation throughout. Due to wild fire fighting efforts, aerial fire retardant was within the pond. <br /> <br />The D-Seam dewatering pond system #1 was stable and maintained at the time of the inspection. Water was <br />contained within three of the six cells associated with the system. No discharge was noted at the time of the <br />inspection. No problems were noted. <br /> <br />The D-Seam dewatering pond system #2 ponds 5A, 3 and 4 of the Phase I construction have been completed, with <br />the exception of the discharge and flume of the finishing Pond 4. Contractors installing the Pond 4 flume were on- <br />site at the time of the inspection. The ponds have been completed as designed with the exception of slight <br />modifications associated with Pond 5A. These modifications should be noted in as-built designs. The <br />modifications observed should not have an impact on the outflow design or a major deviation of the holding <br />capacity of the pond. Dewatering was in progress at Pond 5A and discharging to Pond 3. No problems were <br />noted, with the exception of the following: <br />- The northwest corner of the Pond 5A embankment has developed a small seep. There is not a constant <br />flow from the seep and no sediment was observed leaving through the seep. This area should be monitored <br />to ensure that the integrity of the embankment is not compromised. <br /> <br />Ditches and culverts throughout the mine site were stable with no problems noted.