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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 measurements757
Mean23 cfu/100mL
Geometric Mean18 cfu/100mL
Standard Deviation27 cfu/100mL
Minimum 8 cfu/100mL
1 percentile 9 cfu/100mL
5 percentile 10 cfu/100mL
10 percentile 11 cfu/100mL
25 percentile 13 cfu/100mL
Median 15 cfu/100mL
75 percentile 23 cfu/100mL
90 percentile 31 cfu/100mL
95 percentile 46 cfu/100mL
99 percentile 180 cfu/100mL
Maximum 240 cfu/100mL

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Page Last Modified: Wed 06 October 2010