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2015 Water Quality Summary

Health Related

​Parameter ​Units ​MAC ​Range ​Average
Turbidity ​NTU ​0.3 ​0.030 - 0.073 ​0.048
​Chloramines ​mg/L ​3.0 ​1.93 - 2.03 ​1.98
​Trihalomethanes ​​ug/L ​100 ​10 - 24 ​14
​Fluoride ​​mg/L ​1.5 ​0.75 - 0.80 ​0.79
​Nitrate - N ​​mg/L ​10  ​0.01 - 0.31 ​0.15
Chromium​ ​ug/L ​50 ​< 0.5 ​< 0.5
​​Lead ​ug/L ​10 ​< 0.01 - 0.18 ​< 0.01
 

 

Bacterial Testing1 

                       ​ ​Total Samples Total Negative Results​ ​Total Positive Results Total Retests​
Water Treatment Plant and Storage Reservoirs​ ​300 ​300 ​0 ​0
Distribution Samples​ ​1239 ​1239 ​0 ​0
 

 

Non Health Related 

​Parameter ​Units Aesthetic objective ​Range ​Average
​pH ​n/a ​6.5 – 8.5 ​7.47 – 7.79 ​7.62
​Hardness ​mg/L ​n/a1 ​158 – 211 ​183
TDS - total dissolved solids​ ​mg/L ​500 ​207 - 286 ​238
​Iron ​ug/L ​300 ​< 10-20 10
​Manganese ​ug/L ​50 ​< 5 ​​< 5
​Aluminum ​ug/L ​n/a2 ​27-293 ​111
​Sulfate ​mg/L ​500 ​42 - 70 ​52
​Sodium ​mg/l ​200 ​13 – 22 ​17
  
Definitions:
MAC = Maximum acceptable concentration established by Health Canada
AO = Aesthetic objective (no health based limit) suggested by Health Canada
NTU = Nephelometric Turbidity Unit
mg/L = milligrams per litre or one part per million
ug/L = micrograms per litre or one part per billion

 

 

1 Parameter without guideline. Hardness levels between 80 and 100mg/L (as CaCO3) are generally considered acceptable; hardness in excess of 200 mg/L is considered poor; hardness in excess of 500 mg/L is considered unacceptable.

2 Operational guidance value of less than 100 ug/L total aluminum. The current weight of evidence does not indicate adverse health effects at levels found in drinking water.