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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.




USGS 01476510 Ridley Creek near Gradyville, PA

  Stream Site

DESCRIPTION:
Latitude 39°52'28",   Longitude 75°22'56"   NAD27
Chester County, Pennsylvania, Hydrologic Unit 02040202
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Field/Lab water-quality samples 1925-09-23  1977-08-08  14 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Pennsylvania Water Science Center
Email questions about this site to Pennsylvania Water Science Center Water-Data Inquiries