Laserfiche WebLink
A, R, i`i.3"Rs1 r. '{ r".r�'; x7 's - A; a i 1 C <br />(� r.'.r 5}i, r,� •'-�7 3'.,{ '�µrf - ',Y r j Y n y j'+, d�s�,gr r� `:.r. � R. r a ' ..i... : <br /> 7Y1 <br /> r` <br /> y <br /> 9 <br /> C <br /> Table 9 <br /> DEPTH-TO-VATER MEABUREf4E1�Tf3 <br /> (Grad ent Calc. ) <br /> DEPTH GROUNDWATER <br /> DAT1 WE�.L TO WATER ELEVATION <br /> ' -59.92' <br /> 08-26-91 MW-1* 8°_°2g' -•59.98' <br /> 08-26-71 Mid-2 -59.95' <br /> 08-26-91 MW-3* 80.92 <br /> 79.90' -59.80' <br /> 09-17-91 MW-1 -59.841 <br /> w 09-17-91 MW-2 83.14 , -59.63' <br /> 09-17-91 MW-3 80.80 <br /> Not used for gradient calculation <br /> � o <br /> Using the depth to water measurements obtained from the <br /> three monitoring wells (09-17-9I) in ^onjunction with survey <br /> information, groundwater elevation valuers were calculated, <br /> ' was <br /> and a groundwater flow direction and gradient mapshallow <br /> produced. From this map (Appendix D, Figure 6) , <br /> groundwater flow has been shown to be in a westward <br /> direction, movinq at a gradient of 5-4 vertical. feet per <br /> 10,000 lateral feet. <br /> The calculated flow direction is consistent with the <br /> regional groundwater flow information included in Appendix D- <br /> ow regional flow in 1990 is shown to be in a west or <br /> d a local cone of depression. <br /> northwest direction, towar <br /> 5.o CONCLUSIONS AND RECO14MENDATIONS <br /> * Based upon field observations and laboratory analysis, <br /> ' <br /> ETS has made the following conclusions: <br /> 1) Upon removal of the four UST's and product lines, <br /> atiir loca <br /> waslobservednand oconfirmed nby blaboratoryanalysesene th <br /> ons <br /> A 2) As evidenced by lab results for soil and groundwater <br /> results for the three monitoring wells ETS has found: <br /> a) A soil contamination plume extends below the <br /> farmer product line location. The 14W--3 boring <br /> . 3 reached a portion of the plume at 60.5 feet and <br /> T� found it to continue to 75.5 feet. Soil <br /> contamination found at 30.5 through 35.5 feet, and <br /> 50.5 through 55.5 feet is likely a result of <br /> ETS ENVIRONMENTAL, & ASSOC. <br /> PROJECT 305, PAGE 11 <br /> _-J <br />