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Beaver

Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory

Beaver County

10/18/2007 - 7/7/2016, 92 Samples

Test Parameter Units Number of Samples Tested Median Minimum Maximum Number of samples failing EPA Std Percent of samples failing EPA Std EPA Drink Water Std
Total
Coliform
MPN/100
mL
89 1.0 0.0 200.5 47 52.8 0
E.
Coli
MPN/100
mL
89 0.0 0.0 200.5 7 7.9 0
pH
-
87 7.6 4.6 9.1 8 9.2 6.5-8.5
Total
Dissolved
Solids
mg/L 86 327.5 63.0 1772.0 22 25.6 500
Corrosivity
Index*

-
25 0.3 -5.4 1.2 16 64.0 -
Hardness mg/L 26 192.5 0.8 678.5 - - -
Nitrate+Nitrite
N
mg/L 21 0.5 0.5 3.8 0 0.0 10
Chloride mg/L 38 19.3 2.0 137.9 0 0.0 250
Sulfate mg/L 7 250.6 17.9 390.0 4 57.1 250
Aluminum mg/L 8 0.0 0.0 0.2 2 25.0 0.05-0.2
Arsenic mg/L 24 0.00 0.001 0.004 0 0.0 0.01
Barium mg/L 51 0.07 0.00 1.02 0 0.0 2
Cadmium mg/L 18 0.00 0.001 0.002 0 0.0 0.005
Calcium mg/L 25 52.37 0.25 177.36 - - -
Chromium mg/L 18 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 43 0.01 0.01 0.11 0 0.0 1.0,1.3
Iron mg/L 27 0.2 0.1 0.9 5 18.5 0.3
Lead-1st
draw
mg/L 8 0.00 0.003 0.056 1 12.5 0.015
Lead-Running mg/L 30 0.003 0.003 0.006 0 0.0 0.015
Magnesium mg/L 25 12.30 0.05 57.81 - - -
Manganese mg/L 33 0.01 0.01 0.75 12 36.4 0.05
Mercury mg/L 19 0.00 0.000 0.001 0 0.0 0.002
Nickel mg/L 18 0.01 0.005 0.005 - - -
Sodium mg/L 0 - - - - - -
Zinc mg/L 18 0.01 0.01 0.38 0 0.0 5

*For corrosivity index, failure criteria based on less than -0.5 or greater than 0.5