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

  
   
   

Water Quality: Lead (Yearly Average) 
  

   
YEAR MG/L
90-91 0.005
91-92 0.005
92-93 0.005
93-94 0.005
94-95 0.005
95-96 0.005
1996 0.001
1997 0.005
1998 0.005
1999 0.005
2000 0.005
2001 0.005

Trend:   LITTLE CHANGE


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 the State of Montana is 0.015 MG/L. Levels lower than 0.005 ppm are reported as 0.005 ppm. The change in 1996 is due to an increased ability to detect lead at lower levels.

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