LOCATION.-- On right bank 12 ft upstream from bridge on State Highway
48, 0.3 mi south of Wooddale, 2.3 mi north of Marshallton, and 4.9 mi
upstream from mouth.
PERIOD OF RECORD.-- April 1943 to current year.
GAGE (MANU).-- Water-stage recorder, concrete control, and crest-stage
gage. Datum of gage is 80.31 ft above North American Vertical Datum of
1988 and 81.46 ft above National Geodetic Vertical Datum of 1929. Prior
to Sept. 21, 1950, nonrecording gage at site 10 ft downstream at same
gage datum.
REMARKS (MANU).-- Low flows augmented at times by inflow from Hoopes
Reservoir located 1.7 mi upstream from gage on unnamed tributary to Red
Clay Creek, capacity 2,000,000,000 gal. Water from Brandywine Creek is
pumped into Hoopes Reservoir and is released into Red Clay Creek during
periods of low flow. Water from Red Clay Creek is used for municipal
supply.
PERIOD OF RECORD (Water Quality).-- WATER TEMPERATURE: October 2018 to
current year. SPECIFIC CONDUCTANCE: July 2021 to current year.
