During 2003, four of the City’s wells were monitored for the presence of inorganic chemicals, pesticides, volatile organic chemicals, and radioactive chemicals. These pages list the chemicals that were tested, detected and/or not found.

Contaminants Tested and Detected

Water Quality Parameter Test
Levels Detected by City of Show Low Highest Detected Level Allowed (EPA's MCL) Ideal Goal (EPA's MCLG) Potential Sources of Contaminant
Synthetic Organic Contaminants    
Di(2-ethylhexyl)-phthalate 02/06/04 .0016 .0006 .0006 Petroleum & chemical discharge
Asbestos 01/27/04 <0.2-2MFL 7 MFL   Natural occurring mineral

Contaminants Tested and Not Found or Less Than EPA Standards

Inorganic Contaminants    
Arsenic Mercury Beryllium Sodium
Barium Nitrate (as N) Cyanide (as free)  
Cadmium Nitrite (as N) Nickel  
Chromium Selenium Thallium  
Fluoride Antimony Sulfate  


Volatile Organic Contaminants  
Benezene cis-1,2-Dichloroethylene Toluene
Carbon Tetrachloride trans-1,2-Dichloroethylene 1,2,4-Trichlorobenzene
Chlorobenzene Dichloromethane 1,1,1-Trichloroethane
o-Dichlorobenzene 1,2-Dichloropropane 1,1,2-Trichloroethane
p-Dichlorobenzene Ethylbenzene Trichloroethylene
1,2-Dichloroethane Styrene Vinyl Chloride
1,1-Dichloroethylene Tetrachloroethylene Xylenes, total


Synthetic Organic Contaminants  
2,3,7,8-TCDD (Dioxin) Chlordane Ethylene Dibromide
2,4,5-TP (Silvex) Dalapon Heptachlor
2,4-D Di (2-ethylhexyl) adipate Heptachlor Epoxide
Alachlor Dibromochloropropan Lindane
Atrizine Dinoseb Methoxychlor
Benzo (a) Pyrene Diquat Pentachlorophenol
Carbofuran Endrin Toxaphene


Unregulated Synthetic Contaminants
Endothall Oxamyl
Clyphosate Picloram
Hexachlorobenzene Simazine


Microbiological Contaminants
Total Coliform Bacteria Ecoli


Arochlor 1016 Arochlor 1221
Arochlor 1232 Arochlor 1242
Arochlor 1248 Arochlor 1254
Arochlor 1260  



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