Laserfiche WebLink
NEW ELK COAL COMPANY <br />CONSTRUCTION DIAGRAM FOR MONITORING WELL NE -6 -10b <br />Project: New Elk Coal Company, LLC <br />Northing: 1,183,658 <br />Easting: 3,167,370 <br />Ground Elevation: 7,367.0' <br />Casing Elevation: 7,370.6' <br />Completion Date: 11/13/2010 <br />Driller: Stewart Brothers Drilling - Milan, NM <br />Hydrogeologist: S. Effner, Whetstone Associates <br />Screen Interval: 426.2' to 436.2' <br />Formation: Blue coal seam of the Raton Formation <br />Depth <br />(feet) <br />Well Completion <br />8" vented steel casing stick ups 3 6' <br />• locking cap <br />0 <br />3' x 3 x 10" concrete pad with 4 traffic posts <br />4" stainless steel casing stick up 3 3' <br />' <br />+3.6' - 7 1' 8" steel surface casing <br />cemented in 9 7/8 -inch borehole <br />40 <br />+3.3' - 426.2' 4 -inch diameter <br />304 stainless steel casing <br />80 <br />0' - 450.8' 9 7/8 -inch diameter <br />borehole <br />120 <br />1 <br />VeZ <br />Notes: <br />160 <br />1) Stainless steel centralizers installed at top and bottom of screen <br />' <br />and at 100 -foot intervals along blank casing <br />2) All annular materials placed by tremmie pipe <br />3) Filter pack settled by mechanical agitation prior to <br />200 <br />setting the seal. <br />4) Well casing hung in suspension dunng well construction <br />0 - 410.3' cement seal <br />240 <br />1 <br />280 <br />' <br />320 <br />' <br />' <br />7 <br />337 40 btoc' static water level <br />360 <br />' <br />410.3 - 419.5' - Enviroplug 3/8" <br />coated bentonite pellet seal <br />419.5' - 419.8' 20-40 gradation <br />Colorado silica sand <br />400 <br />419 8' - 426.0' 10 -20 gradation <br />' <br />Cameuse Industrial silica sand <br />426 0' - 437.3' 8 -12 gradation <br />426.2' - 436 2' 0 020 -inch <br />mill slot 316 stainless steel screen <br />Cameuse Industrial silica sand <br />... <br />440 <br />437 3' - 448 3' 10 -20 gradation <br />436.2' - 441 2' blank 316 stainless steel sump with end cap <br />Cameuse Industrial silica sand <br />' <br />448 3' - 450 8' - Enviroplug 3/8" <br />coated bentonite pellets <br />480 <br />450.8' total depth 9 7/8 -inch borehole <br />All depths below ground surface unless otherwise noted (not to scale). <br />