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LOCATION--Middlesex County, Hydrologic Unit 01090001, 10 ft
upstream of bridge on River Road, 300 feet downstream of gatehouse
outlet from Stony Brook Reservoir, and 2.0 mi southwest of
DRAINAGE AREA--23.7 mi2.
PERIOD OF RECORD--October 1999 to current year.
GAGE--Data Collection Platform, reservoir-stage monitor, air temperature monitor, and a heated tipping-bucket precipitation gage equipped with a wind shield. Elevation of gage is 43 ft above sea level (from topographic map). Telephone telemeter at station. Datum of gage is referenced to the City of Cambridge datum, subtract 10.84 feet to elevations to adjust to National Geodetic Vertical Datum of 1929.
REMARKS--Downstream flow affected by regulation of dam 500 ft upstream at outflow of Cambridge Reservoir.
COOPERATION BY--Cambridge Water Department
Daily and unit values precipitation data are calibrated and
quality assured prior to publication by the Massachusetts-Rhode Island
Water Science Center. Data are available upon request.
Wind speed, miles per hour
Wind direction, degrees clockwise from true north
Value Apr 24