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E. Acid-forming and Toxic-forming Spoil -Rule 4.65.8 <br />No significant acid-fomung spoil exists within the overburden or coal seams to be mined (PAP, <br />page 2.05-57). Overburden sampling and regraded spoil sampling plans were approved for the <br />East Pit and Section 11 Pit during the first two pemut terms. These plans are discussed in Exhibit <br />G and Section 2.05 of the PAP. Results from past sampling aze included in the mine's Annual <br />Reclamation Reports. These programs were instituted primarily due to concerns about high <br />sodium adsorption ratios (SAR) in some over- and interburden materials. Analogous sampling is <br />performed in the West Pit and Section 16 Pit. During nine yeazs of sampling of the upper and <br />lower Y seam overburden in the East Pit, only one sample had a suspect SAR value. <br />Approximately seven percent of the overburden samples in the Section 11 Pit had suspect SAR <br />values; all of which were placed at the bottom. of the pit by the dragline_ Only one of 99 samples <br />of regraded spoils has had a suspect SAR value. One sample of regraded spoil is collected for <br />each five acres of reclaimed azea. No evidence of toxic effects to vegetation on reclaimed azeas <br />has been reported to date on the thine site (Findings, 1992 and a review of Annual Reclamation <br />Reports and inspections to date). See pages Z.OS-9, 2.05-4I, 2.05-ST, and Section 4a afExhibif 6 <br />of the PAP and Annual Reclamation Reports for explanations and additional information. <br />F. Impoundments - Rule.4.05.9 <br />Cattle (and .wildlife} watering impoundments have-been approved on the reclaimed mine area. . <br />(see Exhibit7;.Hydrology Infornration,Item.l5,Volttme2C. of the Permit). Other impoundments <br />within the permit azea aze the approved sediment ponds (see pazagraph D above), water treatment <br />basins, and the Taylor Pump Holding Pond (which existed prior to August 3,1977). <br />G. Ground:and Surface Water Monitoring -Rule 4.OS_I3' . <br />Information on surface and ground water monitoring is found in Section 4.05.13 of the Permit. <br />1. The Applicant. has conducted and will continue to conduct monitoring of ground water (Fetartit,. <br />page 4.05-10, and Section 10 of Exhibit 7) in a manner approved by ilte Division [Rule <br />4.05.13(1)]. The ground water monitoring plan is currently as follows (page 4.05-13, PAP): <br />Three alluvial wells are monitored. quarterly. These are. well Afi (upgradient. on <br />Goodspriag Creekj, North Good Spring Wetl (downgradient on Goodsprutg Creek} and <br />Gossazd We11 No_ 1 (downgradientat the mouth of Taylor Creek). Analysis ofthe <br />following pazameters is performed on a quarterly basis and submitted to the Division in <br />an annual report: pH, Conductivity at 25 <br />(HCO3), Calcium (Ca'Z), Magnesium (Mg+Z), Ammonia (NH3), Nitrate, Phosphate (PO4 s <br />as P), Sodium (Na~, Sulfate (SO4 ), Arsenic (As), Iron (Fe), Lead (Pb), Manganese <br />(Mn), Mercury (Hg), Selenium (Se), Zinc (Zn), and Depth to Water. <br />2. The Applicant has conducted, and will continue to conduct, monitoring (see page 4.05-12, <br />PAP) of surface water in a manner approved by the Division. The sampling sites aze: 1) Taylor <br />October 21, 2002 27 <br />