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<br />4 <br />INSPECTION REPORT <br />An 8 yd backhoe and 2 to 3 end dump trucks are being used to move spoil <br />back into ^B" pit from the out of pit storage area. <br />The evaporation pond on the northwest corner of the mine is dry. The <br />embankment was checked and found to be intact. There are no spillways <br />for this system because it does not receive disturbed area drainage from <br />the mine at this time. Pit water may be pumped into the system when and <br />if they decide to dewater ^B" pit. I can not recall if this impoundment <br />was designed for this purpose or was to serve as a backup holding basin <br />for the dewatering ponds inbetween this azea and the pit. That needs <br />review and change if necessary. <br />Approximately 30,000 tons of ash is scheduled for disposal in the pit. <br />Reports are required for the amount of disposal on an annual basis and <br />analysis is done for the bottom and fly ash. (23,511 tons of ash were <br />disposed in 91) <br />As noted earlier in the report, approximately 540,000 yards of spoil is <br />needed at this time to backfill •'B" pit to "ash grade". The current <br />plan as approved will leave a 1,000,000 yd excess amount of spoil that <br />will have to be disposed of outside of the pit. I also believe the <br />excess spoil figure just quoted is based on the current plan to put <br />100,000 yds of ash in "A" pit, to fill it within 8 feet of the surface, <br />if that changes, there will be a reduction in the total spoil that will <br />have to be handled otherwise. <br />Ground water monitoring techniques demonstrated by the operator and <br />general conditions of the wells were observed. Comments have already <br />been made about drawing samples from the wells. The bailer should be <br />rinsed with distilled water to prevent contamination from other wells. <br />Standardization techniques used on the pH\conductivity meter was done <br />according to EPA guidelines. Water samples are put in laboratory <br />provided sample bottles and refrigerated until delivery. There is no <br />fixation of the bottles per the lab. This is acceptable as long as the <br />bottles are taken to testing facility immediately. The following <br />observations were noted for the following wells: <br />DH-122: 14 feet to top of casing to standing water level, 14.4 degrees <br />C, 1822 umos conductivity, 7.3 pH <br />DH-96: 3,75 ft from top of casing to standing water level <br />FPW: 10.9ft to standing water level <br />AMW-2: 38.1 ft to standing water level <br />SMW-1: 49.5 ft to standing water level <br />SMW-2: 59.8 ft to standing water level <br />AMW-1: 92.5 ft to standing water level, 13.2 degrees C, 1935 umos <br />conductivity, 7.64 pH <br />