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Temperature and Water Quality. Kywater, Oct 7, 2007, http://kywater.org/ww/ramp/rmtemp.htm
Physics: Differences in hot and cold water. 2/22/2005, AllExperts, Oct 6, 2007, http://en.allexperts.com/q/Physics-1358/Differences-hot-cold-water.htm
Lesson 12: Oxygen. Water/Wastewater Distance Learning, Oct 04, 2007. http://water.me.vccs.edu/courses/ENV110/Lesson12_print.htm
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