hw_3 - 1.34 WASTE CONTAINMENT AND SITE REMEDIATION...

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1.34 WASTE CONTAINMENT AND SITE REMEDIATION TECHNOLOGY HOMEWORK 3 – DUE MARCH 12, 2004 You may work together to formulate and discuss approaches to homework problems. However, the work that you submit must be your own. Please state all of your assumptions clearly. The questions are “open-ended” in that they require you to assume certain values and to develop your own approach. You have done such a good job advising your colleagues and friends about ground-water contamination issues that your fame as an expert in the area has spread to the town of Plainville, Massachusetts. Plainville, which is located approximately 50 miles southwest of Boston, is home to the largest landfill in Massachusetts. The landfill was in operation for 23 years, from 1975 to its capping in 1998. During its operation the landfill accepted both hazardous and municipal waste. In the early 1980s, a ground-water contamination plume was discovered emanating from the southwest corner of the landfill. Approximately 80,000 people derive their drinking water from the aquifer system underlying the landfill, so the plume and ground-water conditions around the landfill have been extensively monitored: first by Clarence Welti Associates, who installed a series of monitoring wells labeled “CD”; second by Goldberg-Zoino & Associates, who installed a series of monitoring wells labeled “GZ”; and lastly by Eckenfelder Inc., who installed a series of monitoring wells labeled “MW”, a series of piezometers labeled “PZ”, and a series of surface-water monitoring stations labeled “S”. The locals are horribly confused about all of the information presented to them by
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hw_3 - 1.34 WASTE CONTAINMENT AND SITE REMEDIATION...

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