EES 3040: Introduction to Environmental Engineering Homework 7 (Drinking) Water Treatment Due Thursday, October 21, 2010 at 1:15 pm Reading Assignment: D&M1 Chapter 1, p. 14; Chapter 9 (all); Internet D&M2 Chapter 10 (all); Internet Problems: (30 points maximum) ***Please type your answers for Problems 1, 2c, and 3.*** 1. (3 pts.) Use the text and the EPA websites "Setting Drinking Water Standards" at http://www.epa.gov/safewater/standard/setting.html and "Drinking Water Standards" at http://www.epa.gov/safewater/mcl.html to define the following terms. Use 3-4 sentences for each: a.) MCL, b.) MCLG or SMCL, c.) THM d.) (1.5 pts.) Locate and read the online 2009 City of Tallahassee Water Quality Report. - What are the MCLs and MCLGs for nitrate, tetrachloroethylene, and THMs? - Does the City of Tallahassee water meet the MCLs for each of these contaminants? - Is the MCL violated for any of the chemicals analyzed? If so, which ones? - What are the ranges of concentrations for these contaminants from their water sampling?
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