Share

Philadelphia

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

Philadelphia County

2/6/2008 - 6/2/2017, 51 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
42 8.8 0.0 253.8 28 66.7 0
E.
Coli
MPN/100
mL
42 0.0 0.0 200.5 15 35.7 0
pH
-
28 7.4 5.9 7.8 2 7.1 6.5-8.5
Total
Dissolved
Solids
mg/L 27 245.0 20.0 469.0 0 0.0 500
Corrosivity
Index*

-
15 -0.6 -2.7 -0.1 9 60.0 -
Hardness mg/L 16 122.6 0.8 190.3 - - -
Nitrate+Nitrite
N
mg/L 4 2.3 0.2 3.7 0 0.0 10
Chloride mg/L 6 59.5 3.2 115.9 0 0.0 250
Sulfate mg/L 1 52.6 52.6 52.6 0 0.0 250
Aluminum mg/L 0 - - - - - 0.05-0.2
Arsenic mg/L 7 0.00 0.003 0.003 0 0.0 0.01
Barium mg/L 7 0.03 0.00 0.15 0 0.0 2
Cadmium mg/L 7 0.00 0.001 0.001 0 0.0 0.005
Calcium mg/L 15 34.62 0.25 48.72 - - -
Chromium mg/L 7 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 25 0.08 0.01 1.09 0 0.0 1.0,1.3
Iron mg/L 16 0.1 0.0 0.2 0 0.0 0.3
Lead-1st
draw
mg/L 6 0.00 0.003 0.006 0 0.0 0.015
Lead-Running mg/L 26 0.003 0.003 0.012 0 0.0 0.015
Magnesium mg/L 3 8.78 6.33 9.47 - - -
Manganese mg/L 16 7.42 0.01 16.66 11 68.8 0.05
Mercury mg/L 19 0.05 0.001 0.132 12 63.2 0.002
Nickel mg/L 7 0.01 0.005 0.008 - - -
Sodium mg/L 12 0.01 0.01 0.02 - - -
Zinc mg/L 19 0.00 0.00 0.14 0 0.0 5

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