Laserfiche WebLink
Mr. Steve Renner <br />Page 2 <br />November 21, 1985 <br />n <br />U <br />1982. The well went dry before there was any discharge from the pump column d,~P to <br />the fact that the well only had 17 gallons of casing storage and a particularly low yield a.s <br />indicated by a recovery rate of 0.08 to 0.16 feet per day (0.05 to 0.10 gallons per r•nv). <br />On July 14, 1982, the well was bailed dry; fhe last bail was checked for :+~ier quality <br />field parameters. The field pH was 12 units, specific conductivity at I I.0° was 6200 <br />micromohs and the water had floc-like suspended matter in it. It was decided at this <br />time that a water sample would not be sent to the lab because the well had apparently <br />been contaminated by drilling fluids or cement and as such, would provide useless infor- <br />mation. <br />During the mid-term review process in ihA spring of 1984, MLRD irq~r~sted samplinq of <br />this well. On June 23, 1984, approximately six (6) yallons were bail~•i Fnr ~ w~i~r quality <br />sample after another attempt at pumping failed for the s•n,r~ rAnsrms ~I• ~ fl.. r tnr fhe <br />first pumping attempt. On November 2, 1984, the well was hrriled again (14 ycrll ~•,.) and <br />sampled for water quality. The analytical results of these two samples (Appendix B, 1984 <br />Annual Hydrology Report) indicate that the well is still rnntaminnred (rs reflr~t•••I t• ~ Ilie <br />anomalously high pH and conductivity values rnmpared To the v~rliii~s c! `•,i,~~ l tr•„n the <br />of her three (3) Wadge coal wells sampled biannually for water yu6lity. In ~~•~•~~,~,ny, well <br />development by means of pump-surge-pump and hand bailing has been atternpt~r•. How- <br />ever, the extremely low casing storage volume and low rate of recovery (i.•~., Iv.v yielri) <br />of this well has precluded proper well development. As such, a rer•~•' c:~rtative water <br />sample of Wadge coal formation water is irrrNossible to obtain at this site. <br />3. Water quality sampling of well GW-56 will be discontinued and replaced with well • <br />GW-S I I. Both wells monitor the Wolf Creek Overburden. Proper technique for sampling <br />well GW-56 is almost impossible and collection of a representative water sample is <br />improbable because a PVC bailer, 260 feet of nylon rope and a metal pipe attached to <br />260 feet of electrical wire have been lost down the hole. <br />4. The annual hydrology report will be submitted to the CMLR aT the end of February <br />instead of the end of January following each calendar year. <br />5. In addition to these proposed changes, a spring and seep survey of reclaimed lands will <br />be performed annually. The mine hydrologist will locate and map all springs and seeps <br />which issue from previously disturbed lands within the permit boundary. The survey will <br />be made during periods of baseflow (September-October) before the ground freezes or <br />the onset of snow. Discharge from located springs and seeps will be measured if field <br />conditions permit. If discharge is greater than three (3) gallons per minute, field param- <br />eters (pH, specific conductance, and temperature) will also be determined at this time. <br />The above described changes to the Seneca II Mine hydrology monitoring program are <br />incorporated into the attached revised pages 7-10-16, I7, 19, 22 and 26 of the Seneca II <br />Mine Permit. <br />• <br />