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Item Distribution of Eurasian and hybrid watermilfoil in Minnesota(2019) Eltawely, Jasmine A.Item Providing Safe Drinking Water in Guatemala Through Collaboration, Metering, and Monitoring(2010-07-30) Passe, Derrick J.In 2007, Engineers Without Borders was contacted by Simajhuleu to help them repair their drinking water system. Simajhuleu is a small village located 50 kilometers Northwest of Guatemala City in the Central Highlands of Guatemala. The initial request was for assistance in installing a new water supply line from a remote spring to the Village. The initial assessment trip in January 2008 discovered the existing pipeline from the spring to the Village was conveying the water available at the spring to the Central Distribution tank in the Village 10 Kilometers away. Since 2008, Engineers Without Borders has visited the Village multiple times to study the Village’s water system. This has included investigation of both social and technical behaviors affecting the water flow in Simajhuleu. This investigation has revealed deficiencies in the Supply, Distribution and Demand components of the water system. The goal of the water improvement project is to improve social and physical well-being by securing ample, reliable, potable water for all residents of the village.Item Using Temperature Sensing Equipment to Detect Groundwater and Surface Water Interactions in Long Lake, New Brighton, MN(2011-12-15) Churchich, Molly A. ChermakTemperature sensing equipment is a cost effective way to determine areas in water bodies where groundwater may be seeping into the surface waters. Data records of noticeable temperature differences can indicate points where groundwater may be mixing with the surface water. Identifying these areas can help in many studies including determining pollutant loading and water level fluctuations. The research reported in this manuscript used Dallas Thermochron DS1922L-F5 temperature loggers to map the south lobe of Long Lake, which is a deep, urban lake. Based on this sampling event a few areas were identified for possible groundwater inputs. These areas include the connection to the north lobe of Long Lake, the channel connection to Pike Lake in the west, and at the south end of the lake. The results demonstrate the successful aspects of this method and developmental tools for future projects of this nature.