Numerical Transport Modeling II

		East Bay Township Plume Clean-up Project - HONORS Advanced - Multi-week integrated groundwater project. Flow modeling; contaminant remediation. Background: A subsurface contaminant plume has been identified in East Bay Township, a residential area adjacent to Traverse City, Michigan and home to the Cherry Capital Airport. Prompted by complaints of odors and foaming water in domestic water well supplies in the residential area along Avenue E near East Grand Traverse Bay, the Department of Public Health detected organic substances in the groundwater – including benzene, toluene, xylene, and other compounds characteristic of solvents, cleaning agents, and fuel substances. These chemicals are known to be harmful if ingested by humans. (Numerical Transport Modeling II- 7)

		East Bay Township Plume Clean-up Project Advanced - Multi-week integrated groundwater project. Flow modeling; contaminant remediation. Background. A subsurface contaminant plume has been identified in East Bay Township, a residential area adjacent to Traverse City, Michigan and home to the Cherry Capital Airport. Prompted by complaints of odors and foaming water in domestic water well supplies in the residential area along Avenue E near East Grand Traverse Bay, the Department of Public Health detected organic substances in the groundwater – including benzene, toluene, xylene, and other compounds characteristic of solvents, cleaning agents, and fuel substances. These chemicals are known to be harmful if ingested by humans. (Numerical Transport Modeling II- 7)

		Woburn, MA superfund site project Advanced - Integrated project; multi-layer aquifer modeling; source water tracking; contaminant tracking; groundwater-surface water interaction. Background: In 1972, in the working-class town of Woburn, Massachusetts (population ~40,000), 13 children in 8 different families had contracted a rare form of childhood cancer (acute lymphocytic leukemia). The inflicted families suspected that the drinking water - long known for its for its color and bad taste – had become contaminated by nearby industrial activity in Woburn. For seven years, however, the inflicted families struggled to convince anyone that there was a serious problem with the drinking water. (Numerical Transport Modeling II- 7)

		St Johns Landfill Beginner to Advanced – Multi-step Problem, which can be done sequentially (as a project) or individually (as assigned problems). Background: The St Johns landfill is a 225 acre landfill located in North Portland, Oregon, near the confluence of the Columbia and Willamette Rivers. The landfill sits on a thick layer of silt (average thickness ~50ft), which in turn overlies a fairly transmissive gravel aquifer. The aquifer covers the entire area between the Columbia and Willamette rivers and extends east past North Portland Road. It is known the aquifer is well connected (hydraulically) with the two rivers (Numerical Transport Modeling II- 7)

		Interlachen, Oregon groundwater contamination Intermediate – Multi-layer aquifer modeling; source water tracking; contaminant tracking. Background: A small community pumps groundwater from a confined sandstone aquifer for their drinking water supply. A recent monitoring study, however, shows that the aquifer is contaminated by a TCE plume near the Boeing and Cascade sites upgradient (see below). Although the well water is currently not contaminated, the citizens are extremely concerned since groundwater is their exclusive source of water supply. (Numerical Transport Modeling II- 7)

		Drinking Water Contamination Dispute Homeowners in a small community filed a lawsuit against a nearby food processing plant for the contamination of their water wells with heavy metals. They claimed that the source of the problem is the food processing company’s spray irrigation of its waste water at four large fields in the vicinity. But the food processing company denied the charges, arguing that even if the water from the spray irrigation is a problem, it cannot possibly reach most of the water wells because they are outside the impact area of the spray irrigation. You be the judge… is the company responsible?!? (Numerical Transport Modeling II- 7)