Laserfiche WebLink
. most likely dependent upon the water level in the Wadge Impoundment <br />located 50 feet away. Well 26, located between Wells 25 and 27, <br />normally exhibits water levels higher than either 25 or 27. This is not <br />a normal ground water level gradient; therefore, its water levels should <br />be reviewed with caution. Perhaps, as with Well 22, water is being <br />trapped in the borehole. <br />Seven spoil wells were completed in the fall of 1987. Three (Well 59, <br />60, and 61) were completed upgradient of the Spoils Spring 3 area, while <br />four (Wells 62 to 65) were completed in the Spoils Spring 1 area. The <br />purpose of placing several wells at each site was to accurately define <br />the potentiometric surface of the spoils aquifer at each location. <br />Water levels at all of these spoil wells exhibit normal seasonal <br />variations. Well 65 has been dry for the entire period of record <br />(except for October 2000, which occurred after a 1.94 inch rainfall in <br />late September). It is located in an area where the spoils are normally <br />• unsaturated. This year, all seven wells exhibited water levels within <br />their historic ranges. <br />I• <br />Ground Water Level Summary. All alluvial wells are showing distinct <br />seasonal water level fluctuations in response to periods of <br />precipitation recharge or the lack of precipitation. Overburden and <br />coal well water levels are fluctuating in response to the precipitation <br />recharge, induced ground water flow to the mine pits, and in some cases, <br />changes in reservoir water levels. Spoil well water levels still <br />indicate that only the furthest downslope highwall portions of the spoil <br />exhibit significant amounts of saturation. <br />Ground water Quality. Ground water samples were collected from 19 wells <br />on a biannual basis. In addition, one well (SOV42) that is required to <br />be sampled did not have enough water to sample. The parameter list used <br />for all wells sampled this year is given on Table 4. Analyses have been <br />performed by ACZ Laboratory in Steamboat Springs, Colorado since May 31, <br />1983. ACZ Laboratory performs all analyses by EPA or equivalent <br />methods. Samples are delivered the day of collection to the lab in an <br />iced cooler. A complete description of the ground water monitoring <br />5 <br />