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Summary of Pond/Lake Water Samples

Tested by the Penn State Agricultural Analytical Services Laboratory.

04/01/2010 - 6/30/2015
471 Total Samples

Test ParameterUnitsNumber of Samples TestedMedianMininumMaximumNumber of samples with levels of concernPercent of Samples with levels of concernLevel of concern
E. Coli MPN/100 mL 277 7.2 1.0 2419.6 39 14.1 > 126
Nitrate+Nitrite N mg/L 428 0.50 0.50 47.3 27 6.3 > 3
Phophorus mg/L 471 0.025 0.013 26.1 152 32.3 > 0.025
Total Dissolved Solids mg/L 428 111.4 8.7 1638.4 7 1.6 1,000
pH - 429 7.5 3.3 10.6 37 8.6 < 6 or > 9
Total Alkalinity mg/L 428 38.7 0.0 2212.6 12 2.8 < 5
Hardness as CaCO3 mg/L 471 59.9 1.7 4242.3 109 23.1 150
Iron mg/L 471 0.10 0.05 15.7 57 12.1 0.3
Manganese mg/L 471 0.013 0.007 15.6 132 28.0 0.05
Aluminum mg/L 471 0.03 0.00 8.7 45 9.6 0.1
Sulfate mg/L 471 11.60 2 2420 44 9.3 250