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well No. G41-S30 DRILL LOG AND WELL DESCRIPTION Mine Seneca sneer 1 of 2 Location T5id, R87W SEC. 12, SE'a of iJl•J', Coordinates 27506.26 S ]7950.77 E Ground elev. 7465.42 Total depth ' 39.0' Date dratted 6/30-7/7/80 logged by P,. Smith COMPLETION RECORD Drill bit size 4-3/4" ' Casing: I,p, 2" Gaga SCH 40 Material PVC Perforatioi or Screen TYPe~ Slots slot size 1" x 1/16" x Interval 33.0'-39.b6/ Packing Gravel Initial Water Level Completed in 4Jadge Coal Seam Depth Syym- bpi Thick- ness DESCRIPTION O ~~?~, 1.9 Dark Yellowish-Brown Topsoil 4.1 Very Pale to Pale Yellowish-Orange, Very Fine-Grained Sandstone, ]dell Sorted ~~~x°%.~ 0.7 Lost (Core) 10 i:;::: 1.3 Sandstone as above w/Planar Shale Interbeds ::~:•:<:;:<• 1.0 Lost (Core) :a~:: ~:: ::~::`:::: 7.0 Sandstone as above, Several Small (0.01') Pyrite idodules at •••~>~ 15.4', Slightly Calcareous __ -- 1.I Dark Yellowish-Orange Sandy Shale _ "~~ 0.9 i+ledium Dark Gray Shale w/Thin Lenticular Silty Laminae 20 - 2.0 Grayish Orange Very Fine-Grained Sandstone w/Thin Dark Brown Laminae, Calcareous ~~'~:~•`<~: 2.0 Lost (Core) ~~~~~_> 6.0 Sandstone, as above, but 14assive :~ 1::~>: " ~- 1.0 Lost (Core) 30 - - 0.6 Grayish Orange Sandy Shale --- 1.9 Light Gray Lenticular Siltstone w/Thin Wavy Dark Shale Laminae. ___-_=_ Gypsum and Pyrite Traces from 30.8' to 31.0' 3.1 Dark Gray Shale ca/Occasional Siltstone Lenses 9.7 Coal - Wedge Seam 40 - -- _- 0.8 i4edium Dark to Grayish Black Carbonaceous Shale == 2.7 Light Gray Sandy Siltstone and i4edium to Dark Gray Shale 2.5 Dark Gray Shale, Plondescript 50 - -_= 3.3 Light Gray Siltstone li/Thin 41avy Shale Laminae -= 2.3 (tedium Gray Shale w/Thin Siltstone Lenses 1.6 Coal - Vitreous w/Pyrite and Gypsum Traces =_= 0.7 Dark to Grayish Black Carbonaceous Shale ~•~/Pyrite and Coal Stre~ 60 - 10.1 Mediwn Gray Very Fine-Grained Sandstone, ?lassive 7-i-39