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Page 1 of 1 <br /> MONITOR WELL LITHOLOGIC LOG <br /> Monitor Well Name GW-N19(WNO019) Geologic Unit Monitored Dakota Coal Underburden <br /> Drilling Date 07/01/86 Logged By J.S. Dingman <br /> Geophysically Logged By None Total Depth Drilled (ft)_ 125.0 <br /> DEPTH (FT) DESCRIPTION AND COMMENTS <br /> 0 - 2 CLAY, slty, red-brn <br /> 2 - 4 CLAY, slty, it grey, well indurated <br /> 4 - 9 CLAY, tan brn <br /> 9 - 11 CLAY, yel to It yel-brn <br /> 11 - 28 CLAY, slty, soft to well indurated, brn <br /> 28 - 39 SILTSTONE, brn grading to grey, H.0 @ 29' <br /> 39 - 50 SILTSTONE and SHALE, dk grey <br /> 50 - 53 SILTSTONE, It grey, hd <br /> 53 - 56 SHALE, dk grey, v soft <br /> 56 - 59 SHALE, carbonaceous and COAL (Upper Dakota) intbdd <br /> 59 - 66 SANDSTONE, v fn grnd, It grey <br /> 66 - 69 SHALE, carbonaceous, blk <br /> 69 - 74.5 COAL (Lower Dakota) <br /> 74.5 - 84 SANDSTONE, v fn grnd, It grey <br /> 84 - 102.3 SHALE and SILTSTONE, intbdd, med-dk grey <br /> 102.3 - 104.2 COAL (Nucia) <br /> 104.2 - 107.5 No Data <br /> 107.5 - 113.7 SANDSTONE, It grey, hd <br /> 113.7 - 115 SHALE, dk grey, soft <br /> 115 - 119.5 SANDSTONE, It grey, hd <br /> 119.5 - 121 .6 SHALE, dk grey <br /> 121 .6 - 123.7 SILTSTONE, dk grey <br /> 123.- - 125 SHALE, slty, dk grey <br /> T.D. <br /> D-16 Revised 11/01/86 <br />