MBMG-78891

All Screens Casings

	Depth	Description
	-1.0-56.5 ft	4.0 in diameter pvc casing
	48.7-56.5 ft	4.0 in diameter screen screen

Depth	Lithology	Description
0.0-5.0 ft	unknown	SAND AND GRAVEL MOSTLY LIMESTONE AND DOLOMITE MUCH COARSE SAND SECONDARY CALCIUM CARBONATE ON BOTTOMS OF COBBLES GRAVEL CLASTS MOSTLY BROKEN BY DRILL BIT
5.0-15.0 ft	unknown	SAND AND GRAVEL AS ABOVE BUT WITH LESS SAND MOSTLY BROKEN PEBBLES AND ROCKS CUTTINGS GENERALLY LESS THAN .75IN LONGEST DIMENSION FEW CHUNKS OF SILTY CLAY IN CUTTINGS
15.0-20.0 ft	unknown	SAND AND GRAVEL MORE COBBLY BETWEEN 20 AND 22 FEET MUCH MED COARSE SILTY SAND WITH PEBBLES ONE FRAG OF RED COARSE GRAINED SANDSTONE SECONDARY CALCIUM CARBONATE RINDS ON MANY PEBBLES MOSTLY DK GRAY TO LT GRAY LIMESTONE DOLOMITE WITH SOME LIGHT GRAY CHERT
20.0-25.0 ft	unknown	SAND AND GRAVEL WITH LARGE COBBLES BETWEEN 22 AND 23 FT FEWER COBBLES BETWEEN 23 AND 25 FEET MOSTLY LIMESTONE DOLOMITE CLASTS IN CUTTINGS WITH MINOR AMOUNT OF SANDSTONE CLASTS SECONDARY CALCIUM CARBONATE RINDS ON SOME PEBBLES
25.0-30.0 ft	unknown	SAND WITH FEW ROCKS AND PEBBLES GRAVEL CLASTS MOSTLY ALMOST ENTIRELY PEA SIZED CHIPS AND FRAGMENTS OF LARGER ROCKS NO CALCIUM CARBONATE RINDS ON FRAGMENTS 90 PERCENT LIMESTONE DOLOMITE FRAGMENTS REMAINDER DARK GRAY SANDSTONE
30.0-35.0 ft	unknown	INTERBEDDED SAND AND GRAVEL LENSES BOULDERS AT 32 FEET SMOOTHER DRILLING AT 33 FEET VERY BOULDERY AT 35 FEET LITHOLOGIES AND CUTTINGS AS ABOVE
35.0-40.0 ft	unknown	VERY BOULDERY GRAVEL BETWEEN 36 AND 37FT SMOOTHER DRILLING AND LESS BOULDERS BETWEEN 37 AND 39 FT CLEAN HOLE SO FAR WITH LITTLE CAVING COBBLES AT 40FT LITHOLOGIES AND CUTTINGS AS ABOVE
40.0-45.0 ft	unknown	LARGE COBBLES AT 41FT SMOOTHER DRILLING AT 42FT ROCKY AND COBBLY TO 44.5FT INTO STICKY CLAY AT 44.5FT
45.0-50.0 ft	unknown	CLAY ZONE TO 48FT IN SAND AND GRAVEL 48 TO 50FT CUTTINGS AT .75 TO 1.5 LARGEST DIMEN UNBROKEN GRAVEL CLASTS MANY CLASTS SHOW WELL DEVEL CALC CARBONATE RINDS SOME CRSE SAND CEMENTED TO THEM BY CALC CARBONATE MOSTLY LIMESTONE DOLO CLASTS LESS THAN ABOVE
50.0-55.0 ft	unknown	SAND AND GRAVEL TO 55FT MUCH LESS COBBLY CLAST SIZE MOSTLY .75IN DIAMETER FORMATION SEEMS LOOSE AND UNCONSOLIDATED BEING WASHED UP BY BIT FEW BROKEN CLASTS
55.0-60.0 ft	unknown	SAND AND GRAVEL AS ABOVE CLAY ZONE 58 TO 60FT BACK INTO SAND AND GRAVEL AT 60FT LARGER GRAVEL SIZES RESULTING IN MORE BROKEN ROCK IN CUTTINGS
60.0-64.0 ft	unknown	SAND AND GRAVEL TO 64FT AT 64FT MUD PUMP PRESSURE DRILLING PENETRATION RATE MUCH SLOWER VERY SMOOTH DRILLING
64.0-68.0 ft	unknown	COLORADO SHALE BEDROCK CONFIRMED BY CUTTINGS ON BIT WHEN DRILL STRING PULLED.