Laserfiche WebLink
operation has the potential to be acid-forming or toxic-forming. This <br />is due to acid forming potential of a fraction of 'Wolf Creek <br />overburden and low pH and high Boron found in and near the Lennox <br />coal seam. Seneca Coal Company will sample regraded spoil material <br />in areas of potential concern prior to replacement of topsoil to <br />determine the presence of acid or toxic forming spoil material at the <br />surface of regraded pits. Any areas with chazacteristics unsuitable for <br />plant growth will be treated chemically or buried with at least four feet <br />of topsoil. Based on the observations at the nearby Seneca II and <br />Seneca II West operations, such occurrences are expected to be <br />infrequent and small. <br />1. The Division will require that all acid- or toxic-forming spoil be <br />buried or otherwise treated, as discussed above. fturial within <br />thirty days is not feasible and the delay will riot result in any <br />material risk of water pollution or other enviromnerrtal damage. <br />(4.05.8(3)). <br />E. Surface and Ground Water Monitoring <br />i <br />Seneca Coal Company has devised a water monitoring plan that will <br />enable the Division to determine what, if any, hnpacts the operation <br />will have on the prevailing hydrologic balance. "['he plan is described <br />in detail in Tab 15 of the permit application, and summarized briefly <br />in tables 1-4 in this document. <br />1. The applicant will conduct monitoring o~f ground water in a <br />manner approved by the Division. The , ground water <br />monitoring plan is listed in Tables 1 and 3 of; thi:~ document. <br />(4.05.13(1)). <br />2. The applicant will conduct monitoring of surface water in a <br />manner approved by the Division. The monitorurg plan was <br />submitted under 2.05.6(3)(b)(iv) and is listed in Tabbies 2 and 4 <br />of this document. (4.05.13(2)). <br />The surface water monitoring plan proposed in the permit application <br />package does not include a downstream monitoring station on Grassy <br />Creek. An additional monitoring point downstream from .all potential <br />mine-related impacts to Grassy Creek is necessagr to verify predictions <br />of the probable hydrologic consequences in the: permit application. <br />Therefore, the following stipulation is being :added to the Yoast <br />permit: <br />Yoaz~ Minc 24 ~~iY a i~ss <br />