P.O. Box 669, Billings, MT 59103-0669    e-mail: bhcc@msubillings.edu

  
   
   

Water Quality: Fluoride  (Yearly Average)
  

   
YEAR

MG/L*
90-91 0.48
91-92 0.49
92-93 0.38
93-94 0.42
94-95 0.34
95-96 0.39
1996 0.38
1997 0.37
1998 0.42
1999 0.41
2000 0.47
2001 0.47

Trend:   LITTLE CHANGE

*MG/L = milligrams per liter

Source:  Billings Public Utilities Dept. 406-657-8346
http://ci.billings.mt.us/government/utilities/parameters.html

Caveats and Definitions
The Maximum Contaminant Level (MCL) set by EPA, Safe Drinking Water Act is 4 MG/L. The city does not add Fluoride to the treatment process. All Flouride is natturally occurring. (62% of U.S. municipal drinking water systems add fluoride. 1 PPM is the optimum MG/L to reduce tooth decay)

The Billings Public Utilities Department changed from a fiscal year to a calendar year in 1996.