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1,O ecernber 2001 1NEje Page4 of 4 hazardous waste manifest for disposal of the pump test purgedwater is'contained ` j ;:✓11 tzz Appendix G. ' • -3.6. SUMMARY AND. . "s ` , - ",.. - , ' . . . . • ' . • CONCLUSIONS. . The ground water resided within the well screen of the extraction well. Tile most likely of the extracted ground water was fr'orn the low.to medinrn Permeable s source and 40 feet bsg and at 50'feet bsg. ; p . . ted= encountered.at 35 feet, Th`e implications from the August 2001 g aquifer r Q ound water pumping test are: " . Ground water draw-down of at least IS feet was observed in extraction well EW-1,followin 720 minutes,of continuous pumping S g ( GPM); ground.water.draw-down was,observed in well MW 9 (located I5 feet to the west)'at 0.37 feet, well MW' -8 (located 30 feet toward'the' east)-at 0.16 feet, well MW-2.(located 30'feet toward the east) at 0.23 feet, well 1VI 1 (located 40 feet t W 1. oward the west) at 0-21 feet and in well MW-3 (located 40 feet toward the northeast) at 0.1 feet. �:. Utilizing a se'm i-logarithmic plot of ground water draw=down vs. observation'well distance ` to pumping well, a best-fitline can be utilized calculated the-folio calculated atwing: transmissivity.was 4,353 gallons per day/ft and a'storativity value was calculated at 0.IS • Based on a rransmissivi,ty value of 583 R'/day and'the extraction well scz eeri thickness equal to 25 ft (screen interval at EW-1), a hydraulic conductivity value was calculated' at O.00I,cm/s; a hydraulic eonduetivtty is consistent with a screened interval"locat silt or a'silty to fine sand, ed within a' • ' .Laboratory analysis,of extracted water during the pumping test detected low cone of TPI�I-ss, BTEC acid v concentrations . arious VOCs. 4.0. LIMITATIONS Our professional"servlees weree p rforned using that-degree of care and skill ordinarily exercised by environmental-consultants practicing-iti this or similar localities. The findings were based mai upon analytical results provided.by an independent laboratory. Evaluation of the eolo is my r ; geologic conditions-at the site fo g g /h dro- r the,purpose of this'investigation are made from-a limited'numbez ' of available data points(5olinst L-evelogger data;.ground water samples), and subsurface conditi may,vary away_ M-these data points. No other warranty, ons ' ty, expressed or implied; is made as to the professional recommendations contai ' ned m this report. AdvancedGeoEnviMnrnental[nc.