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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 measurements742
Mean140 cfu/100mL
Geometric Mean90 cfu/100mL
Standard Deviation240 cfu/100mL
Minimum 47 cfu/100mL
1 percentile 52 cfu/100mL
5 percentile 55 cfu/100mL
10 percentile 57 cfu/100mL
25 percentile 62 cfu/100mL
Median 69 cfu/100mL
75 percentile 100 cfu/100mL
90 percentile 200 cfu/100mL
95 percentile 460 cfu/100mL
99 percentile 1600 cfu/100mL
Maximum 2200 cfu/100mL

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URL: http://nrtwq.usgs.gov/explore/stat?site_no=01478245&pcode=99406&period=31d_all&timestep=uv
Page Contact Information: National Real-Time Water Quality Information
Page Last Modified: Wed 06 October 2010