STATION.--01470960 TULPEHOCKEN CREEK AT BLUE MARSH DAMSITE NEAR READING, PA
LOCATION.--Lat 40`22'14", long 76`01'32", Berks County, Hydrologic Unit 02040203, on right bank 1.0 mi upstream from Rebers Bridge and Plum Creek, 1.0 mi east of Blue Marsh, 3.0 mi north of Sinking Spring, and 5.5 mi northeast of Reading. Water-quality sampling site at Rebers Bridge 1.0 mi downstream.
DRAINAGE AREA.--175 square miles.
PERIOD OF RECORD.--May 1965 to current year.
GAGE.--Water-stage recorder, crest-stage gage and water-quality monitor. Datum of gage is 230.06 ft above National Geodetic Vertical Datum of 1929 (Western Berks Water Authority datum). Prior to Nov. 25, 1974, water-stage recorder at site 0.3 mi downstream at same datum. Satellite and land-line telemetry at station.
COOPERATION.--Funding for the operation of this station is provided by the U.S. Army Corps of Engineers, Philadelphia District.
REMARKS.--Flow regulated since April 1979 by Blue Marsh Lake (station 01470870), 0.8 mi upstream.

The 15-minute water-quality data for this station are temporary and will only be displayed for 120 days. Time series data will NOT be available for retrieval following the 120-day display period. Instrumentation is routinely inspected and calibrated. However, other quality assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.

GAGE HEIGHTS OF IMPORTANCE.-
Supplied by USGS: Maximum recordable gage height (stage sensor operational limit) - 24.5 ft; Data transmitter operational limit - 26.7 ft;
Supplied by NWS: No flood stage has been determined for this station.