Category EV L12 Water Quality: An Analysis of City Water in Bay City, Michigan

Abstract The purpose of this study was to evaluate causes of the poor water

quality in Bay City found during the previous year’s study of water quality

in the Saginaw Valley. What was determined to be poor water quality in

Bay City may be due to the type of piping in the home from which water

was sampled. Contaminants from the piping could have been released into

water. Therefore, it was hypothesized that the specific home previously

tested is the source of the conclusion that the water quality in Bay City is

poor.



Twelve houses, three from each of four different quadrants of the city,

were tested for eleven contaminants. Contaminants tested for during this

study included alkalinity, ammonia, total coliform/E. coli, carbon dioxide,

chloride, dissolved oxygen, nitrites, pH, supersaturation, total dissolved

solids and total hardness. All of the tests, except total coliform/E. coli,

supersaturation and total dissolved solids, were conducted three times to

ensure accuracy of the results.



Following analysis of the data, it was concluded that the original

hypothesis was incorrect. Although the quadrant that the house is located

in had the highest values for several contaminants, the individual house

did not have higher values than any of the other houses tested.



Based upon the findings of this study, future research is planned related

to the water quality in Bay City. It is recommended that additional testing

be performed to determine the cause of the poor water quality of an

individual home, be it the piping of the home or the pipes leading up to the

home from the water treatment facility. Additional testing may also be

performed to evaluate leaching that occurs with different types of pipes at

different temperatures.

Bibliography “2007 Water Quality Report.” 2007. City of Bay City Municipal Water

Treatment Plant. 30 January 2008.

<http://www.baycitymi.org/Utilities/water/WaterReport.pdf>.



“Alkalinity.” Wikipedia. 06 December 2007. 07 December 2007.

<http://en.wikipedia.org/wiki/Alkalinity>.



“Bacteria.” Aqua Pure. 07 February 2008.

<http://www.aquapurefilters.com/contaminants/108/bacteria.html>.



“Chlorite.” Aqua Pure. 07 February 2008.

<http://www.aquapurefilters.com/contaminates/118/chloride.html>.



“Commonly Found Substances in Drinking Water and Available Treatment.”

Illinois Department of Public Health. 07 December 2007.

<http://www.idph.state.il.us/envhealth/pdf/DrinkingWater.pdf>.



“Copper Water Pipe Corrosion – Aggressive Water.” Ask the Builder. 06

July 2001. 26 February 2009.

<http://www.askthebuilder.com/084_Copper_Water_Pipe_Corrosion_-

_Aggressive_Water.shtml>.
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