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PERMFILE114050
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PERMFILE114050
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Entry Properties
Last modified
8/24/2016 10:10:13 PM
Creation date
11/24/2007 11:15:23 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980005A
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
TAB 7 HYDROLOGY PART 3
Media Type
D
Archive
Yes
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State Rea. <br />• monitored at two sites: 17-W and 19-W. Both wells are located <br />~'a~; errt of mini.rrg. <br />Well 17-W is located near the Wadge ~otn'idme^*, and water samples <br />collected at this site have a NaCaMJ-S04 water type. ~e Wadge dal <br />aquifer at this site receives L'echaxge fxYau the Wadge T~TM~*+t <br />(which receives a;~-hare fx+aa the spoils aquifer) arri the Little <br />GYas.~y Creek alluviino. 29S omxerrtrations at well 17-W have been <br />increasing since 1980, which is to be expected omisiderimg the <br />sources of rec3~arge far the Wadge Coal aquifer in this area. <br />Well 19-W is located south of the Wadge T+~~~++~*+t. Wadge Coal <br />a? ~; fen water quality at this site is quite different than seen at <br />well 17-W; the water type is Na-HC03, aryl 29S levels are <br />armrrnr;~++ately one-third of those ~~TM~ at 17~d and Show a very <br />slight decreasing trend. It should be noted that the water quality <br />• obseLVed at 19-W is quite similar to the water quality ~~~+**~ at <br />other Wadge Coal monitoring wells that were later destroyed by <br />mining. <br />Wolf Creek Overbuxrien/Wadge Underburden Aotrifer. 2Y>x'ee wells <br />presently monitor water quality ,in the Wolf Creek Overburtien/Wadge <br />Underbunien aquifer: 7-WCO, SPl-U, and S11-U. <br />Well 7~TCU is located downdip frcan the Wolf Creek pit area, arri water <br />samples froio this site are distinctly different than those from wells <br />8P1-U and S11-U. A CaMg-S04 water type is present at 7-WOD. 29.5 <br />values at 7-WCO have declined since 1987 when a peak 29S level of <br />1600 mg/1 was a~easlsed; the 1991 water year average 2DS concentration <br />was 1233 log/l. <br />Water quality at wells 8P1-U aryl Sll-U are quite similar. Both wells <br />show a Na-HCD3 water type; 29S concentrations are stable and range <br />• between 600 to 700 mg/1. <br />Wolf Creek Coal Awifer. Peabody presently maintains no monitoring <br />7-316 Revised 12/10/92 <br />
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