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REP51493
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REP51493
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Entry Properties
Last modified
8/25/2016 12:56:12 AM
Creation date
11/27/2007 1:06:03 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980005
IBM Index Class Name
Report
Doc Date
2/7/2000
Doc Name
1999 ANNUAL HYDROLOGY REPORT
From
SENECA COAL CO
To
DMG
Annual Report Year
1999
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
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• penetrate). However, this well <br />23 sometimes shows water in late became dry in August 1998, <br />Februa <br />d A <br />il <br />M <br />h and continues to he so. Well <br />l <br /> ry, <br />, an <br />pr <br />arc as snow me <br />ts quickly off this <br /> westerly-Facing slope, although it has been dry since 1985. Well 24 has been dry for the <br /> entire period of record. <br />Three wells: 25, 26, and 27; are situated in the lower region of spoils above the Hedge <br />Impoundment. A11 three of these wells were outfitted xith continuous recorders operated <br />by the U.S. Geological Survey (US GS) until the end of 1983. Well 25, the highest <br />upgradient of these three wells on the spoils slope, indicated an absence of recharge in <br />1987, 1988, 1990, 1991, 1998, and 1999, but exhibited recharge in all other years since <br />1903. well 27, lowest of the three, shows that its water levels aze moat likely dependent <br />upon the rater level in the Wedge impoundment located 50 feet axay. The USGS personnel <br />operating the recorders prior to 1904 also support these findings. well 26, located <br />between Wells 25 and 27, normally exhibits water levels higher than either 25 or 27. This <br />is not a normal ground water level gradient; therefore, its rater levels should be <br />reviewed with caution. Perhaps, .as with Well 22, rater is being trapped in the borehole. <br />• Seven spoil cells were completed in the fall oP 1907. Three (Well 59, 60, and 61) were <br />completed upgradient of the Spoils Spzing 3 area, while four (Wells 62 to 65) rare <br />completed in the Spoils Spring 1 area. The purpose of placing several walla at each site <br />was to accurately define the potentiometric surface of the spoils aquifer at each <br />location. Water levels at all of these spoil wells exhibit normal seasonal variations. <br />Well 65 has been dry for the entire period of record. It is located in an area where the <br />spoils are unsaturated. i <br />Ground Water Leval Summary. All alluvial wells are shoring distinct seasonal water level <br />fluctuations in response to periods of precipitation recharge or the lack of <br />precipitation. Werburden and coal well water levels are fluctuating in response to the <br />precipitation recharge, induced ground water flow to the mine pits, and in some cases, <br />changes in reservoir water levels. Spoil cell water levels still indicate that only the <br />furthest downslope highwall portsons of the spoil exhibit significanC amounts of <br />saturation. <br />Water Quality. Ground water samples were collected from 19 wells on a biannual basis. In <br />addition, two wells (SOV42 and SSP25) that are required to be sampled did not have enough <br />water to sample. The parameter list used fox all walla sampled this year is given on <br />5 <br />
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