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April 9, 2019 C-1981-018/Deserado Mine CCW <br /> <br /> <br />Number of Partial Inspection this Fiscal Year: 6 <br />Number of Complete Inspections this Fiscal Year: 4 <br /> <br /> Page 6 of 13 <br /> <br /> During the inspection the reclaimed pad for LWB12-1 was visited. The pad was regraded to the <br />approximate original contour. There were no indications of erosional features or instability at the site. Vegetation <br />has begun to mature and was helping stabilize the reclaimed area. <br /> <br />FISH and WILDLIFE – Rule 4.18: <br /> During the inspections of the PP -2 and RP-5 ponds several ducks were spotted. Deer t racks were located <br />at several ponds throughout the mine site. <br /> <br />HYDROLOGIC BALANCE - Rule 4.05 <br />Drainage Control 4.05.1, 4.05.2, 4.05.3; Siltat ion Structures 4.05.5, 4.05.6; Discharge Structures 4.05.7, 4.05.10; <br />Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13; <br />Drainage – Acid and Toxic Materials 4.05.8; Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: <br /> There are three ponds located at the main facilities area, the DP -1 Pond, the PP-1 Pond and the PP-2 Pond. <br />The DP-1 Pond collects runoff from the facilities area. The pond was impounding water at the time of the <br />inspection. There was no discharge occurring. The primary spillway has a trash rack on top of it to prevent debris <br />from clogging the outlet. The cattails in the pond have started to grow over the trash rack. The Division <br />recommends clearing the cattails near the ou tlet. The emergency spillway was clear of debris and in good repair. <br />The embankment was well vegetated and stable. There were no indications of erosion. The PP -1 Pond is used for <br />the processing plant. The embankments of the pond were stable and in goo d condition. There were no erosional <br />features. The pond was holding water; however, the pond was not discharging during the inspection. The PP-2 <br />pond was holding water during the inspection. There was no discharge occurring. The outlet was capable of <br />functioning, although the Division recommends cleaning the discharge outlet. The embankments were well <br />vegetated and stable. There were no erosional features identified. <br /> <br />The ditches throughout the facilities area were inspected. The ditches along the perimeter of the mine office bench <br />were clear of debris and capable of functioning as designed. Ditches located on the wash plant bench were <br />generally in good repair. The west ditch had been recently cleaned. The east riprap ditch leading off of the wa sh <br />plant bench to the DP-1 Pond was capable of functioning as designed. The ditch was observed to have sediment <br />built up in it. The Division recommends cleaning this ditch. The ditch located on the northern section of the wash <br />plant bench was capable of functioning as designed. Sediment has reduced the ditch’s capacity and the division <br />recommends cleaning the ditch. <br /> <br />There are two half CMPs that divert runoff from the facilities topsoil pile. The northern half CMP was in good <br />condition and capable of functioning as designed. The southern half CMP was observed to be blocked between <br />the upper CMP and the lower CMP. The ditch had become filled with sediment and evidence showed that water <br />was bypassing the second half CMP. The Division recommends cleaning this portion of the southern CMP to <br />restore propose flow through the ditch. <br /> <br />The sump at the Halandras Landfill was dry at the time of the inspection. The sump was stale and no erosional <br />issues were identified. <br /> <br />There is one sump (RS -1, Photo 13) and one pond (RR-1, Photo 14) located at the southern part of the rail loadout.