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--0'R,�: , <br /> CLEARWATER <br /> G R Q U P, I N C <br /> I <br /> ' the top of the bentorute seal and the ground surface using a tremae pipe An <br /> expansion plug and a traffic-rated well box was installed at the ground surface in <br /> each well Specific well construction details are included in Appendix B and are <br /> ' summarized below. <br /> Groundwater Monitoring Well MW-6 <br /> i ' • Constructed of 2-inch-diameter well materials <br /> • Well screen: 40 feet to 20 feet bgs <br /> ' Filter pack: 40 feet to 18 feet bgs <br /> • Bentonite seal 18 feet to 16 feet bgs <br /> • <br /> Grout- 16 feet bgs to ground surface <br /> ' Air Sparge Wells SW-1 and SW-2 <br /> • Constructed of 2-inch-diameter well materials <br /> • Well Screen: 32 feet to 30 feet bgs <br /> • Filter pack- 32 feet to 28 feet bgs <br /> • Bentorute seal 28 feet to 26 feet bgs <br /> • Grout 26 feet to ground surface <br /> i <br /> SVI s (VW-1 W ll 1 a 1 VW-2 <br /> 1 • Constructed of 4-inch-diameter well materials ' <br /> • Well screen: 25 feet to 15 feet bgs <br /> • Filter pack 25 feet to 13 feet bgs ' <br /> � I <br /> Bentonite Seal 13 feet to 11 feet bgs � I <br /> • Grout 11 feet bgs to ground surface I <br /> , t <br /> 2.4 Monitoring Well Development, Sampling, and Surveying <br /> 1 ' <br /> I On September 27, 1995 monitoring well MW-6 was developed by surging with a <br /> bailer throughout the entire water column The first water removed from the well <br /> ' I was turbid, but had no hydrocarbon,sheen or hydrocarbon odor. Approximately ten <br /> well' casing volumes of development water„were, removed; during this process the,- I <br /> El,' water ,temperature, conductivity, and pH' were 'iiieasuxed , All ` groundwater' I , <br /> I, d ,l , 1, 1 1 I 1 I 1 , , h I I <br /> parameters were I vVithin ,expected ranges ,after development was, completed On, <br /> E , <br /> III ' October 9, �9f95�!Clearwater personnel'surveyed kthe top of casing on'MW-b Suivey <br /> , ' I I <br /> ! I I I <br /> 1 I ID14I IPAR/3Q/PILOT , 5 <br /> pl : CIS ll <br /> � I II,�I I'� <br />