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These wells are shown on Map 11A, Well Locations for Eastern Mine District. A review of the wells listed in this
<br />exhibit indicates that the wells are relatively shallow. This is important, because the wells are completed in a local
<br />sandstone (presumed to be the Fish Creel{ sandstone) which overlies the massive Marine shale. Subsequent
<br />development in the NMD and WMD will not impact any known existing wells that are not owned by TC.
<br />SPRINGS AND SEEPS
<br />A spring and seep survey was conducted by TCC in the Fish Creek drainage during May 1986. The survey identified
<br />all significant discharges to Fish Creek and delineated the specific stratigraphic interval of bedrock discharges, where
<br />possible. The locations of these discharges are shown on Map 37, Fish Creek Ground Water Inflow Survey. Selected
<br />locations were measured for flow, temperature, specific conductance, percent salinity, and pH. The field data
<br />collected during the survey is shown on Table 60, Fish Creek Stream and Inflow Investigation. Flows were measured
<br />using a portable 4 -inch cutthroat flume, or a bucket and stopwatch. Field water quality was measured using standard
<br />instrumentation.
<br />The only significant spring identified during the survey was 20-14, which issues from the Twentymile Sandstone and
<br />is located in Section 11, T5N, R86W. This spring was eliminated from the overall Hydrologic Monitoring program in
<br />May, 2003 (TR03-42).
<br />The spring and seep survey, previously referenced, indicated two springs or seeps that could be affected by planned
<br />mining operations. The two springs, located in the north half of Section 36, T5N, R87W, appear to issue from the
<br />Fish Creek Sandstone, and were undermined in the SWMD. Monitoring data indicates the springs produce limited
<br />discharge; typically discharging at a rate of 5 gpm or less, and were not affected by mining. These two springs were
<br />added to TC's Hydrologic Monitoring Plan, and were monitored during and following active mining, on a quarterly
<br />basis for quantity and quality. Exhibit 14 was modified to include these springs.
<br />NN[D and WNW (Panels 17 -Right through 24 -Right and 12 -Left through 17 -Left, PR03-06, PR06-07, and
<br />PR09-08)
<br />Supplemental Spring and Seep Survey
<br />Supplemental spring and seep surveys of the TC Permit Area were conducted by TCC during Inlay, in 2002 and 2003.
<br />The survevs included an investigation of the NIvID and W MD areas to identify potential discharges to Fish Creel:.
<br />The locations of these discharges and other- historical discharges are shown on Map 37A, 2003 Spring Survey.
<br />Discharge locations were measured for flow, temperature, pH and conductivity when adequate pooled water was
<br />available. The field data collected during the survey is presented on Table 60.1; Northern Mining District Spring and
<br />veep Survey. Flov.-s :Jere measured using a portable cutthroat flume or a bucket and stopv,'atch. Field water quality
<br />was measured using standard instrumentation.
<br />Generally, groundwater migrates along bedding planes, faults, joints or fracture zones. Given adequate head pressure
<br />and recharge, if these zones of water migration intercept the ground surface, springs or seeps develop. The NMD and
<br />'vNrMD are located within the Twentymile Park synclinal basin. The dominant near -surface lithologic unit, which
<br />occupies most of the basin is the LeEvis Shale, vihich can be upwards of 700 feet thick. The lack of signlfican?
<br />,edding planes. fault= or fracture zones in this area, inay account for a general iack of SPI -I' gS Or Seeps iii the cerarai
<br />.)aSio. h -i general, as, ClocUmented i�� lable `30.!, any springs or seeps, i'Jen`Litied b}, the Spring and seep surveu I!i thf
<br />,. _ ;ai - - _,�rit�_.-':.:i.ic ;'1•�. rli.^L ii:- ;:t . wt�;C'•_«sl�ly' y�: ib;; ,
<br />Giver :7' C"Zr - �=1 Cita ar}d ri(�-1 � t�l_r
<br />t -I' ,C E"" G
<br />'rJSGr;L:4.lIV ail Ui M16 ooiiably 1e3l!h li,oin rlYtillre'Joi-r ter `+fl(JYJiliCld. aixi -•esdrlrirag Si}&iio %%
<br />_ _.R'_t _.__! 1_!' _ cL"J__� —_aC� , t1 Yt • �s fJl:?LYt4=ii`.adptC," lt_;.EY: i,a •u„ ro(i�ir iiC�C GUiI�_ _,_"(i",YtP-'J. Pfitw vY„('>:. e rii4.`
<br />in the numerous silYall elahenieral C!rainages in tae area. flo,,vs are /pIC%!lv of limited diaration, diying-w3 `Tl thin 3 i
<br />sno P iet
<br />i a✓ n^ nA ^.177 yy t,
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