EAS446lec1 - 1-1EAS 44600 Groundwater Hydrology Lecture 1:...

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Unformatted text preview: 1-1EAS 44600 Groundwater Hydrology Lecture 1: Introduction Dr. Pengfei Zhang Introduction The Woburn SiteFigure 1-1. Aerial photo showing the locations of Well G, Well H, Beatrice Foods, and W. R. Grace (Courtesy of Scott Bair). AberjonaRiver 1-2The city of Woburn, MA developed two water supply wells (G & H, Figure 1-1) in the 1960s. These wells provided ~27% of the communitys water supply. The unpleasant taste and odor of the water was noted by citizens using this water. The high incidence of childhood leukemia in the Pine Street area of Woburn in the 1970s prompted the local citizens to suspect a linkage with the low quality water from wells G & H. The water from these wells was found to contain significant amounts of chlorinated organic compounds, which could only have resulted from careless disposal of degreasing agents by one of the nearby industrial plants. In 1982 local citizens whose children had developed leukemia filed a lawsuit against two nearby industries with known or suspected contamination problems (W.R. Grace and Beatrice Foods). Beatrice Foods was located across the Aberjona River from wells G & H (Figure 1-1). The goal of the plaintiffs lawyer was to prove that chlorinated solvents had percolated into the aquifer and were drawn by pumping action into wells G & H. The plaintiff hired an expert witness, George Pinder of Princeton University, to determine whether the contaminants could have traveled from Beatrice Foods to Wells G & H before the late 1960s, the period after which the leukemias began to appear. On the witness stand Pinder described features such as saturatedand unsaturated zones, capillary fringes...
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This note was uploaded on 12/29/2010 for the course EAS 44600 taught by Professor Pengfeizhang during the Spring '10 term at CUNY City.

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EAS446lec1 - 1-1EAS 44600 Groundwater Hydrology Lecture 1:...

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