Funding for this site is provided by:
--01478120 EAST BRANCH WHITE CLAY CREEK AT
--Lat 39`49'42", long
75`46'52", Chester County, Hydrologic Unit 02040205, at Third
Street bridge in Avondale Borough, 2,000 ft upstream from State Route
--11.3 square miles.
PERIOD OF RECORD.
--October 2007 to current year.
Ungaged Chester County Biological Monitoring site since 1969.
--Water-stage recorder, crest-stage gage, and
water-quality monitor. Datum of gage is 264.65 ft above North American
Vertical Datum of 1988, from single-base GNSS static survey. Prior to
March 10, 2022, the datum of gage was erroneously reported as 270 ft
above National Geodetic Vertical Datum of 1929.
--Funding for this station is provided by
the Chester County Water Resources Authority, the Chester County
Emergency Management Services, the U.S. Geological Survey.