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Tetra Tech WELL ID: Lot 25 <br /> C. El <br /> 45610 Woodland Rd Suite 400 Black Oak Ridge II <br /> Sterling,VA 20164 <br /> Telephone: 7034447000 <br /> CLIENT Carrington Builders LC PROJECT NAME Black Oak Ridge II <br /> PROJECT NUMBER 117-7364003 PROJECT LOCATION PIN 265-18-5580-000 Loudoun County VA <br /> PERMIT# T40362080001 REPORTED YIELD(GPM) 1.3 GROUND ELEVATION 499 <br /> DATE COMPLETED 7/12/2014 DEPTH 740 STATIC DTW(FT BGS) 22.7 <br /> DRILLER Singhas&Michael CASING DEPTH(Fr) 60 HYDRAULIC HEAD(FT>MSL) 477.98 <br /> DRILL METHOD Air Rotary GROUT DEPTH(FT) 57 WL MEASUREMENT DATE 7/30/2014 <br /> EASTING(FT) 11690620 NORTHING(FT) 7081267 GEOLOGIST SO/BC <br /> w <br /> z 0 <br /> w K N ii p MATERIAL DESCRIPTION WELL DIAGRAM <br /> a W <br /> 0 <br /> } Casing Top Elev:-1.68(ft) <br /> 0 Casing Type:Thin-wall steel <br /> i <br /> 20 1 Silt loam brown. <br /> 40 -- , '�( 6"dia.0.188"thin-wall <br /> 60 i steel casing(-1.66'to 61'bgs) <br /> 80 Dark greenish-gray(5G 4/1) Fine medium grained '� <br /> metadiabase dike(Zmd). I I <br /> 100 � �/ � -- <br /> 120 //�,-- <br /> 140 ``� <br /> 160 �//� I • I OLTH Op I/ <br /> 180 / Dusky Blue Green(5BG 3/2)Metagranite with quartz and 1 j �O. <br /> 2200 ;`� plagioclase feldspar in a mafic biotite matrix. / / Vi <br /> 240 `'%, r� , f i ()ROBERT M.COHEN . <br /> 260 Vii. i. ROBERto 6F9°R \280 <br /> 0. <br /> > 300 <br /> 320 /— p'i , <br /> z 340 17 I Dark greenish-gray(5G 4/1) Fine-medium grained 't« <br /> = 360 t metadiabase dike(Zmd). / <br /> 8 \ 1 <br /> 0 380 � 1 <br /> z 400 -- I �-- Open rock hole,6" <br /> Ce 420 40 /- diameter(61'to 740'bgs) <br /> 0 440 `��4 <br /> N 460 ��% l 1 <br /> R 480 � � <br /> S 500 � <br /> o <br /> a 520 1 /(- P <br /> 9. 540 V4 - <br /> 5 580 4 Dusky Blue Green(5BG 3/2)Metagranite with quartz and y �/ <br /> 600 �`� plagioclase feldspar in a mafic biotite matrix. /I <br /> o <br /> 620 1 <br /> O <br /> � / <br /> z 640 `s% <br /> 1 660 1 r- <br /> a <br /> 700�01 ' <br /> 740 `/`` 0 <br /> C w3 1.3 GPM Total Bottom of borehole at 740.0 feet. <br /> z <br /> 8 <br /> o <br />