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USGS 01104480 STONY BROOK RESERVOIR AT DAM NEAR WALTHAM, MA

PROVISIONAL DATA SUBJECT TO REVISION

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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 Waltham.
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.

Available Parameters Available Period
All 10 Available Parameters for this site
  
00010 Temperature, water 2008-05-23  2016-10-19
00020 Temperature, air 2007-10-01  2019-07-21
00035 Wind speed 2010-11-30  2019-07-21
00036 Wind direction 2012-10-01  2019-07-21
00045 Precipitation 2010-09-20  2019-07-21
00060 Discharge 1999-08-06  2019-07-21
00062 Elevation, reservoir 2007-10-01  2019-07-21
00065 Gage height 2007-10-01  2019-07-21
00095 Specific cond at 25C 2008-05-23  2016-10-19
72022 Reservoir storage 2007-10-01  2019-07-21

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Summary of all available data for this site
Instantaneous-data availability statement


Temperature, air, degrees Celsius

Most recent instantaneous value: 32.9 07-21-2019   17:45 EDT
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Wind speed, miles per hour
 
-- Data temporarily unavailable for the time period specified --

Wind direction, degrees clockwise from true north
 
-- Data temporarily unavailable for the time period specified --


Precipitation, total, inches

Most recent instantaneous value: 0.00 07-21-2019   17:45 EDT
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Discharge, cubic feet per second

Most recent instantaneous value: 0.02 07-21-2019   17:00 EDT
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Daily discharge, cubic feet per second -- statistics for Jul 21 based on 19 water years of record more
Min
(2011)
Most Recent
Instantaneous
Value Jul 21
25th
percen-
tile
Median 75th
percen-
tile
Mean Max
(2000)
0.01 0.02 0.05 0.14 0.47 0.72 9.80


Elevation of reservoir water surface above datum, feet

Most recent instantaneous value: 79.12 07-21-2019   17:45 EDT
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Gage height, feet

Most recent instantaneous value: 0.63 07-21-2019   17:00 EDT
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Reservoir storage, million gallons

Most recent instantaneous value: 374.4 07-21-2019   17:45 EDT
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