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The Trost prominent aquifer in L.'ie VicinitU Of the ^id-_-Ontinert o,:)erarions is r'.'^.e
<br /> alluvial aquifer of Coal Creek. Yields in this aquifer are reported to averac,e
<br /> 20 gori. °Jid-Continent has comoleted 9 observation and product on wells into
<br /> this alluv ai aquifer, and the alluvium Of SeTJeral Of the Smaller <irainageS (see
<br /> °IZn IV-C_ E_nd Clan IIi-E'-1 of the permit arplicat 'on) . £x�nths of these wells
<br /> range fro:r; 10-75 fee,. The -rater quality of: the arluifer is goneralla a Ca,111a,
<br /> 119-11CO3 type wit:2 an average cot."a1 dissolved s071r7s concen-�ration of 347 mg/l.
<br /> Iron and ,ma _;esium cor_centratio:hs are h_,h, but the water is still suitable for
<br /> domestic uses ('see Section I1I-E-2 Of the permit anplicatio, The alluvial aquifer
<br /> is probably recharged :)y 3 mechanisms:
<br /> 1) :`rOr7 the su._.ace ""Fter curing ire__"icGS ,Ir hi(Th :_!o,,7,
<br /> 2) rOm t1he c?C,11 nL a(7roC]�: Strata, and
<br /> 3) i-rom direct infil tration of n •ec,'nt =_ n and snorTmeIt.
<br /> `rhe alluvial aquifer nr_obablu discharges tO the f�llO:�✓inr 1, cations:
<br /> 1) to the surface water rl�ur_ing periods of low floi✓,
<br /> 2) to the adjacent bedrock strata, and
<br /> 3) to the alluvial arruifer of the C.rast_�7 R vcr, farther downstream.
<br /> Tha OnlLi use of qrroTLnd ['later f-,'Om a((infers that have the potential to be impacte:
<br /> bz? r:ning (the aquifers discussed a o-,'e) is by the app_icant. Several mi-e-
<br /> production we. iS are cormpleteC intG :. SCe'
<br /> Tab'12 III-C O._` the 1,erm=t appliCatiOC: fo a de cri')t�oii Df al ,il C late [;%ateC
<br /> r-'ells in the area. Yo wells rE knoi.m to b2 COm;:1oted ?n--0 ripe C.'"il -beat'ir
<br /> strata of the l'esa Verge GrouP in the vicinity cf the .. .:".
<br /> Descr_`Dticn Or �"pnliCant'S .Dror Sal
<br /> 'she aJplicant proposes to :7L ne both L he Coal Basin coal Seam ("B" Seam) and the
<br /> Dutch Creek coal seam ("V" seam) by underground mining T,,)cthods (see Figure III-D-1
<br /> of the perrrlt applicE_tion for st_ratigraphic relaticnshins) The mine entries will
<br /> be located near the OL.tcrop O.` the sea . NO si mificant ph.Isical disturbance
<br /> Of adiacent strata .gill occur as a result Of the nine entries.
<br /> In addition, the app71.cant pro'Doses to censtru. t a tunnel which will connect the
<br /> 2 se;-,ms currently being mined. ^his tunnel will be used to more efficiently
<br /> trar_snOrt coal out of the m i2c. The tunnel ertr_a s•%ill be located in the under-
<br /> l-ying r'1an'cos Shale formation and will continue uo the stratigraphic section. until
<br /> .it .intersects the Dutch Creek coal sear. It will cut through 3 sandstone units that
<br /> ar% cops!de rictenti Zi aC,ui `crs. TneL7 are, in st"a tiora;�,icallU ascending Order,
<br /> the CO�zett_', Rollins, and M-iddle Sandstones (seC Fi(-,L;rC, II"T-D-.Z OF the perr?it
<br /> 7_, , 1ic,:it:ion) . TcC' w�2Stc r:^c.,: ,�I:C-1'�?tC'c< during rh COnh tr12CL':C)n 01`
<br /> will 'ram?? liS :,'>red Of O?: t!'e a7::_.; Of Du;_ch Crec'A.
<br /> 1=: mo n t o f rn�ne refuse .�nr7 coal nrocessi; ,,,aster ✓i 71 be c:enera to b,; the
<br /> appll'cant =rr^al operations. The ref'_]se will bc_' �.'iSpOSC-d t in a Small
<br /> t_"ibut.w ry drain�.ge of Dutcy Creek. The coal _rocessing .tastes will_ be d`snosed of
<br /> in the Dutch Creel': ar:d Coal C-ceck drainages. See l'al) II-3-7 of the nermit appli-
<br /> catic'n for t o locations of these waste disposal areas.
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