Monthly Fluoride Report

.42 mg/lBelow is a chart reporting the average monthly levels of fluoride in the City's water distribution system.  Testing of the City's water supply is mandated by the State through the Michigan Department of Environmental Quality.  The State's recommended level of fluoride in a public water system is 0.7 milligrams per liter of water; their acceptable range is between 0.6 and 0.8 mg/l.

                                              2024

  South System North System
Annual Average    
December    
November    
October    
September    
August    
July .47 mg/l .47 mg/l
June .57 mg/l .58 mg/l
May .53 mg/l .55 mg/l
April .62 mg/l .61 mg/l
March .73 mg/l .69 mg/l
February .74 mg/l .75 mg/l
January .69 mg/l .60 mg/l

                                              2023 

  South System North System
Annual Average .59 mg/l .59 mg/l
December .71 mg/l .67 mg/l
November .62 mg/l .53 mg/l
October .60 mg/l .56 mg/l
September .68 mg/l .65 mg/l
August .58 mg/l .60 mg/l
July .41 mg/l .40 mg/l
June .52 mg/l .61 mg/l
May .63 mg/l .73 mg/l
April N/A .59 mg/l
March N/A .68 mg/l
February N/A .68 mg/l
January N/A .35 mg/l

                                    

                                                         2022

  South System North System
December N/A 0.50mg/l
November 0.56mg/l 0.70mg/l
October 0.52mg/l 0.66mg/l
September 0.58mg/l 0.61mg/l
August 0.68mg/l 0.64mg/l
July 0.44mg/l 0.62mg/l
June 0.45mg/l 0.55mg/l
May 0.50mg/l 0.55mg/l
April 0.43mg/l 0.58mg/l
March 0.68mg/l 0.62mg/l
February 0.56mg/l 0.71mg/l
January 0.60mg/l 0.60mg/l

2021

  South System North System
December .58 mg/l .61 mg/l
November .64 mg/l .69 mg/l
October .48 mg/l .50 mg/l
September .64 mg/l .63 mg/l
August .57 mg/l .59 mg/l
July .40 mg/l .54 mg/l
June .44 mg/l .49 mg/l
May .46 mg/l .53 mg/l
April .61 mg/l .60 mg/l
March .50 mg/l .50 mg/l
February .81 mg/l .76 mg/l
January .86 mg/l .83 mg/l

 

2020
  South System North System
December .57 mg/l .50 mg/l
November .62 mg/l .65 mg/l
October .41 mg/l .49 mg/l
September .44 mg/l .48 mg/l
August .59 mg/l .72mg/l
July .56 mg/l .65 mg/l
June .52 mg/l .62 mg/l
May .94 mg/l .93 mg/l
April .63 mg/l .55 mg/l
March .55 mg/l .49 mg/l
February .65 mg/l .54 mg/l
January .38 mg/l .45 mg/l

 

2019

  South System North System
December .52 mg/l .54 mg/l
November .40 mg/l .42 mg/l
October .41 mg/l .47 mg/l
September .35 mg/l .36 mg/l
August .36 mg/l .35 mg/l
July .38 mg/l .52 mg/l
June .48 mg/l .53 mg/l
May .42 mg/l .46 mg/l
April .55 mg/l .57 mg/l
March .38 mg/l .48 mg/l
February .59 mg/l .69 mg/l
January .54 mg/l .65 mg/l

 

2018

  South System North System
October .50 mg/l .50 mg/l
September .68 mg/l .51 mg/l
August .64 mg/l .61 mg/l
July .43 mg/l .52 mg/l
June .46 mg/l .57 mg/l
May .42 mg/l .50 mg/l
April .47 mg/l .54 mg/l
March .45 mg/l .47 mg/l
February .66 mg/l .68 mg/l
January .76 mg/l .78 mg/l

 

2017
  South System North System
December .69 mg/l .75 mg/l
November .83 mg/l .80 mg/l
October .82 mg/l .83 mg/l
September .80 mg/l .83 mg/l
August .72 mg/l .75 mg/l
July .85 mg/l .75 mg/l
June .70 mg/l .64 mg/l
May .61 mg/l .60 mg/l
April .71 mg/l .69 mg/l
March .75 mg/l .72 mg/l
February .78 mg/l .79 mg/l
January .64 mg/l .66 mg/l

 

2016

  South System North System
December .71 mg/l .68 mg/l
November .81 mg/l .81 mg/l
October .76 mg/l .79 mg/l
September .60 mg/l .62 mg/l
August .56 mg/l .58 mg/l
July .62 mg/l .60 mg/l
June .63 mg/l .59 mg/l
May .63 mg/l .70 mg/l
April .68 mg/l .69 mg/l
March .70 mg/l .71 mg/l
February .69 mg/l .73 mg/l
January .79 mg/l .71 mg/l

 

2015

  South System North System
December .63 mg/l .60 mg/l
November .64 mg/l .65 mg/l
October .63 mg/l .66 mg/l
September .61 mg/l .6 mg/l
August .50 mg/l .51 mg/l
July .72 mg/l .51mg/l
June .67 mg/l .56 mg/l
May .55 mg/l .48 mg/l
April .48 mg/l .51mg/l
March .54 mg/l .55 mg/l
February .74 mg/l .84 mg/l
January .74 mg/l .72 mg/l

 

2014

  South System North System
December .59 mg/l .59 mg/l
November .61 mg/l .58 mg/l

PFAS Information

Below is a link to the letter from the Department of Environmental Quality regarding the results of the PFAS sampling taken in August 2018. 

 

DEQ PFAS Test Results