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Pennsylvania Real-time Water Quality


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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 measurements747
Mean74 cfu/100mL
Geometric Mean33 cfu/100mL
Standard Deviation220 cfu/100mL
Minimum 9 cfu/100mL
1 percentile 10 cfu/100mL
5 percentile 12 cfu/100mL
10 percentile 13 cfu/100mL
25 percentile 19 cfu/100mL
Median 27 cfu/100mL
75 percentile 50 cfu/100mL
90 percentile 68 cfu/100mL
95 percentile 160 cfu/100mL
99 percentile 1200 cfu/100mL
Maximum 2700 cfu/100mL

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URL: http://nrtwq.usgs.gov/explore/stat?site_no=01472157&pcode=99406&period=31d_all&timestep=uv
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Page Last Modified: Wed 06 October 2010