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r" MOM <br /> ry .. sin was term.nated in the Vault with a waterproof <br /> well c . g and a padlock. <br /> lockin`3 Capp 1987- <br /> r <br /> groundwater surfaceand depth <br /> Prior <br /> water <br /> Develol�mert of the we116 was conducted nn December 2 , <br /> Prior to purging, six (6) well and 17.2 <br /> determined in the existing <br /> in MW-7 and MW Were determined to be 16.7 flet, to <br /> t respectively. All water r7 and measurement <br /> taken purged <br /> fee endi to sampling, <br /> date can be found in Appendix pump. Prior 3 well <br /> using a Tri-Lock gall( of water, three ( ) <br /> approximately 3 ed from wells MW-7 and MW-B, respectively. <br /> were pti g laced in one (1) DOT-17E 55 gallon <br /> ae volumes, water Was p <br /> This discharge <br /> ending analysis and treatment or <br /> drum and left on-site, p <br /> disposal in the future' er 29, 1987 from <br /> �g, At each of the two wells two (2) 40 ml. VOA <br /> Graundwateerr samples were calleCted odified and filled for <br /> MW-7 and s were a All samples were <br /> vials with teflon ca lens (BTX} testing. <br /> banaene, toluene and labeled BTXand put into cold storage for <br /> immediately sealed, <br /> chemical laboratory, <br /> transport to the <br /> IX, General Subsurface and Groundwaterconditions <br /> sin M4-7 during <br /> General subsurface conditions en <br /> consisted of silty sand, road base and old asphalt <br /> drilling From 6 inches to 6 feet a dark browny <br /> at the surface. Beneath this sand Below <br /> silty, fine grained. sand wasdium grained sand exists. <br /> feet a light brown silty, gray silty clays and coarse <br /> this zone there are alternating g Y <br /> f to fine grained gray sands to 17 feet. From as gen,countered26 feet a <br /> grading to silt <br /> gray micaceous clay q e water bearing white and black! <br /> Beneath the silt a large Clean sand extended to 38 feet. <br /> coarse to fine, well graded, <br /> clays was present. <br /> From 38 to 50 fest esand non waterlbearinar to ge one above <br /> thin <br /> alternating brawn <br /> etroleum odor beginning at 12 feet <br /> Groundwater was first encountered at about <br /> soil emitted a strong p <br /> and extended dawn to 26 feet. B were similar to <br /> - well Mw- <br /> thicker sand unit at the surface. Groundwater <br /> and <br /> Subsurface conditions found in and the sail <br /> -7 with at about feet, <br /> was encountered 8 exhibited no 060r- <br /> groundwater <br /> or. <br /> ` groundwater in MW- <br /> �es�ann�nn�sut�tnr�a+� <br />