Laserfiche WebLink
',�Z- ,x , w� V'y 3'r3s"r �.. ��, �. '�^,�,�`�•ryrm-� Lia.. ta�. � H..,-' .s• .a"r <br /> 4 <br /> r <br /> Mr. R.W. Conlan 202)150.4150 <br /> October 9, 1990 Page 13 <br /> TABLE 2 <br /> GROUNDWATER GRADIENT DATA <br /> June 14, 1990 <br /> WELL WELL WATER <br /> ID irLEV DTW DTP PT PT x 0.8 ADTW ELEV <br /> MW-1 10.12 36.12 35.49 0.63 0.50 35.62 -25.50 <br /> MW-2 11.11 36.02 36.02 -24.91 <br /> MW-3 11.32 36.64 36,64 -25.32 <br /> MW-4 10.08 35.61 35.61 -25.53 <br /> MW-5 10.26 35.95 35.95 -25.69 <br /> MW-6 10.33 35.54 35.54 -25.21 <br /> MW-7 10.12 35.60 35.60 -25.48 <br /> MW-8 9.56 34.71 34.71 -25.15 <br /> MW-9 9.99 35.74 35.74 -25.75 <br /> MW-10 10.64 36.49 36,49 -25.65 <br /> MW-11 10.17 35,95 35,95 -25.78 <br /> NOTES: <br /> DTW= depth to water <br /> DTP = depth to product <br /> PT petroleum thickness <br /> ADTW = adiusted depth to water <br /> 3.8 GROUNDWATER SAMPLING <br /> Prior to sampling, the:monitoring wells were pugged by removing approximately 4 well volumes <br /> to draw representative formation water into the welt casing. Water samples were obtained with a EPA- <br /> approved TeflonR sampler and placed in 40-milliliter glass vials with 7eflonklined caps in a manner such <br /> that no air was trapped inside. The samples were labeled and placed on ice in an insulated container <br /> along with the appropriate Chain-of-Custody forms and delivered to a State-certified laboratory for <br /> analyses. The groundwater samples were analyzed for BTEX and TPN-G(by modified EPA Method 602), <br /> 1,2-dibromoethane,and organic lead. Additionally,a water sample recovered from MW-5 was analyzed <br /> for purgeable halocarbons by EPA Method 601. <br /> GRou=VATux <br /> _......._; TECHN0LOGY,INC. <br />