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Pennsylvania Real-time Water Quality

USGS station:

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Time period:

The data used to produce these statistics are provisional and have not been reviewed or edited. They may be subject to change.

Summary Statistics for Computed Instantaneous Fecal Coliform Bacteria

StatisticStatistic Value
Number of measurements751
Mean80 cfu/100mL
Geometric Mean68 cfu/100mL
Standard Deviation85 cfu/100mL
Minimum 40 cfu/100mL
1 percentile 42 cfu/100mL
5 percentile 43 cfu/100mL
10 percentile 43 cfu/100mL
25 percentile 48 cfu/100mL
Median 70 cfu/100mL
75 percentile 78 cfu/100mL
90 percentile 91 cfu/100mL
95 percentile 120 cfu/100mL
99 percentile 500 cfu/100mL
Maximum 1000 cfu/100mL

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Page Last Modified: Wed 06 October 2010