Lab # 11 Groundwater Contamination George Lilly owns a nice home near Crossroads
ID: 119578 • Letter: L
Question
Lab # 11 Groundwater Contamination George Lilly owns a nice home near Crossroads. Over a several-week period, his water acquired an unusual taste, and became slightly discolored. He thought that something was wrong with his well and called a local driller. The driller checked the well and found everything to be working properly. The driller encouraged Lilly to have his water analyzed. Twin Fork Fautt wrightstown Lova moiTain Palowse River eensoi Hopper Clearwater River Blaney Lilly called Winston Labs, a water chemistry laboratory offering analytical services to industry government, and citizens. They gave him instructions for taking a sample of his water and transporting it to their lab. The analysis revealed high levels of barium that greatly exceeded the state drinking water standards. The Chief Chemist at Winston reported these results to Mr. Lilly and obtained his permission to release them to the County Health Department. Ils, responded by The County Health Department, con contacting all homeowners in the area of the Lilly property. The letter sent to these homeowners explained the potential contamination problem offered free water-quality testing, and requested homeowner cooperation in a potential investigat ion Following recommendations from state regulatory agencies, the county began collecting information to investigate this problem. You have been hired to supervise this investigation. Your job will be to map ground water levels throughout the county, determine the direction of ground water flow, and prepare a map of the contaminant plume. These skills are what you learned how to do in your Principles of Ground Water Flow course, and you might decide that you should review the textbook in preparation for this assignment. Leclere ERTH230Explanation / Answer
6. Distance between Plough and Collins = (4.8/2) x 500 = 1200 feet
Elevation of Plough = 428.8 ft
Elevation of Collins = 425.6 ft
Difference between Plough and Collins = 428.8-425.6 = 3.2
Hydraulioc gradient = 3.2 feet / 1200 feet = 2.66x10-3
7. Distance of plume from source to Dixon(10.2/2) x 500 = 2550 feet
Time = (2550/100) = 25.5 days.
8. Excessive amount of Barium can cause gastrointestinal, cardiovascular, muscular effects; hypokalemia.
9. EPA recommendation of minimum amount of barium in ground water is 2 mg/L.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.