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Over the
next year, the USGS Pennsylvania Water Science Center will be updating
the geodetic vertical elevation (gage datum) for many locations. Click
HERE for additional information including a current list of
streamgages with upcoming datum changes. This update in gage datum does
not affect the location of the streamgage, nor the observed local gage
height or discharge recorded at the streamgage.
ICE EFFECTS
ON STREAMFLOW -- During cold weather, stage and discharge values may be
affected by ice at some streamgages. Streamgages experiencing ice
conditions will have the discharge record temporarily disabled to
prevent the display of erroneous discharge values. Display of discharge
record will resume when it is determined that ice conditions are no
longer present. Adjustment of data affected by ice can only be done
after detailed analysis.