"TCEQ Homepage - TCEQ - Www.tceq.state.tx.us." TCEQ Homepage - TCEQ - Www.tceq.state.tx.us. Web. 17 Apr. 2016.
"Rio Water Pollution Extends Far Offshore, Report Finds." Time. Time. Web. 17 Apr. 2016.
History.com Staff. "Water and Air Pollution." History.com. A&E Television Networks, 2009. Web. 17 Apr. 2016.
"FAQs." FAQs. Web. 17 Apr. 2016.
"Water Treatment Plants." Home. Web. 17 Apr. 2016.
"15 Interesting Facts About Water Pollution That You Should Know." The Seametrics Blog RSS. Web. 17 Apr. 2016.
"40 Facts About Water Pollution - Conserve Energy Future."ConserveEnergyFuture. 2013. Web. 17 Apr. 2016.
"Rio Water Pollution Extends Far Offshore, Report Finds." Time. Time. Web. 17 Apr. 2016.
History.com Staff. "Water and Air Pollution." History.com. A&E Television Networks, 2009. Web. 17 Apr. 2016.
"FAQs." FAQs. Web. 17 Apr. 2016.
"Water Treatment Plants." Home. Web. 17 Apr. 2016.
"15 Interesting Facts About Water Pollution That You Should Know." The Seametrics Blog RSS. Web. 17 Apr. 2016.
"40 Facts About Water Pollution - Conserve Energy Future."ConserveEnergyFuture. 2013. Web. 17 Apr. 2016.