USGS 01104430 HOBBS BK BELOW CAMBRIDGE RES NR KENDALL GREEN, MA

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION.--Middlesex County, Hydrologic Unit 01090001, on right bank, 50 ft downstream of culvert at Winter Street, 300 ft downstream of gate house outlet from Cambridge Reservoir, and 1.3 mi north of Kendal Green.
DRAINAGE AREA.--6.86 mi2.
PERIOD OF RECORD.--July 1997 to current year.
GAGE.--Data Collection Platform, water-temperature and specific conductance monitor, air temperature monitor, a heated tipping-bucket precipitation gage equipped with a wind shield, and telephone telemeter. Datum of streamgage is 149.20 ft above NAVD 1988, estimated from topographic map. Datum of reservoir gage is referenced to the City of Cambridge datum. Subtract 10.84 ft to convert to elevation above NGVD 1929. Subract 11.70 ft to convert to elevation above NAVD 1988. Dissolved chloride and sodium concentrations estimated from specific conductance measurements using the regression technique described in Smith 2013.
REMARKS.--Flow affected by regulation of dam 300 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.

Photo of Hobbs Brook Streamflow and Precipitation Gages

Available Parameters Available Period
  
2007-10-01  2023-11-29
2015-09-10  2023-11-29
2007-10-01  2023-11-29
2009-10-23  2023-11-29
1997-10-01  2023-11-29
2007-10-01  2023-11-29
2007-10-01  2023-11-29
2007-10-01  2023-11-29
2015-09-10  2023-11-29
2015-09-10  2023-11-29
2018-06-13  2022-04-06
2015-09-10  2022-03-28
2007-10-01  2023-11-29
2012-05-17  2023-11-29
2009-10-23  2023-11-29







 (7)
 

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


Temperature, water, degrees Celsius

Most recent instantaneous value: 6.0 11-29-2023   06:10 EST
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Temperature, water, degrees Celsius, GATE HOUSE

Most recent instantaneous value: 6.1 11-29-2023   05:45 EST
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Temperature, air, degrees Celsius

Most recent instantaneous value: -2.9 11-29-2023   06:10 EST
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Precipitation, total, inches

Most recent instantaneous value: 0.00 11-29-2023   06:10 EST
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Discharge, cubic feet per second

Most recent instantaneous value: 6.27 11-29-2023   06:10 EST
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Daily discharge, cubic feet per second -- statistics for Nov 29 based on 26 water years of record more
Min
(2017)
25th
percen-
tile
Median Most Recent
Instantaneous
Value Nov 29
Mean 75th
percen-
tile
Max
(2019)
0.02 0.65 2.4 6.27 6.9 11 36.6


Elevation of reservoir water surface above datum, feet, GATE HOUSE

Most recent instantaneous value: 181.28 11-29-2023   05:45 EST
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Gage height, feet

Most recent instantaneous value: 0.74 11-29-2023   06:10 EST
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 729 11-29-2023   06:10 EST
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, GATE HOUSE

Most recent instantaneous value: 723 11-29-2023   05:45 EST
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Dissolved oxygen, water, unfiltered, milligrams per liter, GATE HOUSE

Most recent instantaneous value: 10.6 11-29-2023   05:45 EST
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Reservoir storage, million gallons, GATE HOUSE

Most recent instantaneous value: 2514 11-29-2023   05:45 EST
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Sodium, water, filtered, estimated by regression equation, milligrams per liter

Most recent instantaneous value: 100 11-29-2023   06:10 EST
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Chloride, water, filtered, estimated by regression equation, milligrams per liter

Most recent instantaneous value: 180 11-29-2023   06:10 EST
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