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City of Winnipeg, (2014). Water treatment program

Choudhury, H. World Health Organization, (2001).Barium and barium compounds.

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Helmenstine, A. (2014, November 27). What is alum?.

HowStuffWorks. (n.d.). Why Watersheds Matter. Retrieved from http://science.howstuffworks.com/environmental/conservation/issues/watershed2.htm

James, H., & Leffler, B. (2013, May 13). Canada’s Wastewater Regulations. Global News. Retrieved January 10, 2015, from http://globalnews.ca/news/566131/canadas-wastewater-regulations/

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Marsh. J.H..R. The Canadian Encyclopedia. (2013). Toronto feature: r.c. harris water treatment plant. Retrieved January 12, 2015 From http://www.thecanadianencyclopedia.ca/en/article/toronto-feature-rc-harris-water-treatment-plant/.

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Organic Matter and Barium Absorption by Plant Species Grown in an Area Polluted with Scrap Metal Residue. (2012). Applied and Environmental Soil Science,2012(476821), 7-7.

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What is activated charcoal and why is it used in filters?”  01 April 2000.  HowStuffWorks.com. <http://science.howstuffworks.com/environmental/energy/question209.htm&gt;  13 January 2015.

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Images:

Barium [Web Photo]. Retrieved from http://en.wikipedia.org/wiki/Barium

Emond, A. (Photographer). (2009, July 21). Wastewater Treatment [Web Photo]. Retrieved from http://spacing.ca/montreal/2009/07/21/montreals-wastewater-treatment-part-i-a-history-of-problems/

Flack, D. (Photographer). (2010, December 03). The r.c. harris water treatment plant [Print Photo]. Retrieved from http://www.blogto.com/arts/2010/12/the_rc_harris_water_treatment_plant/

Rao, G. (Designer). [Print Photo]. Retrieved from https://edc2.healthtap.com/ht-staging/user_answer/avatars/342438/large/open-uri20120806-24499-18j8agm.jpeg?1386606173

Sherman, P. (Artist). Fluorite Structure [Web Graphic]. Retrieved from http://www.wpclipart.com/rocks_minerals/F/Fluorite_structure.png.html

Sulphuric Acid [Web Photo]. Retrieved from http://www.hydrochloricacidlr.com/prd/sulphuric-acid-commercial.jpg

(2014). How is lake water turned into drinking water? [Web Graphic]. Retrieved from http://www1.toronto.ca/city_of_toronto/toronto_water/files/pdf/water_treatment_process.pdf

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