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  • Notice - The USGS Water Resources Mission Area's priority is to maintain the safety and well-being of our communities, including providing critical situational awareness in times of flooding in all 50 U.S. states and additional territories. Our hydrologic monitoring stations continue to send data in near real-time to NWISWeb, and we are continuing critical water monitoring activities to protect life and property on a case-by-case basis. The health and safety of the public and our employees are our highest priorities, and we continue to follow guidance fromthe White House, the CDC, and state and local authorities.

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ICE EFFECTS ON STREAMFLOW

The formation of ice on rivers can cause discharge values to appear unusually high. Display of these erroneous discharge data may result in improper assessment of flow conditions and misuse of the data. For this reason, display of discharge values for streams significantly affected by ice may be disabled from view. Display of discharge data will resume when ice conditions are no longer present. Discharge values for streams minimally affected by ice will continue to be displayed. Flows for streams with these conditions appear to increase during the night and decrease to near-base-line conditions around midday. To estimate the correct discharge for these streams, use the flow rate that corresponds to the bottom of the discharge curve, rather than the peak that corresponds to the top of the curve. Note that this method of estimation is possible only when no surface runoff is occurring. Daily mean discharges for periods of both significant and minimal ice-effect will be estimated and published in the Annual Water-Data Report for the water year in which they occurred.


* IMPORTANT: Next Generation Station Page

USGS 01104420 CAMBRIDGE RES., UNNAMED TRIB 3, NR LEXINGTON, MA

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION--Middlesex County, Hydrologic Unit 01090001, on right bank, 20 feet downstream of culvert on State Highway 128, 1,700 feet upstream of Cambridge Reservoir, and 2.5 mi. southwest of Lexington.
DRAINAGE AREA--0.77 mi2.
PERIOD OF RECORD--September 1997 to September 1998; November 2011 to current year.
GAGE--Data Collection Platform, with telephone telemeter at station Elevation of gage is 180 ft above sea level NGVD 1929 (from topographic map).  
COOPERATION BY--Cambridge Water Department

This station managed by the Northborough, MA Field Office.  
Available Parameters Available Period
  
2012-03-26  2020-04-02
1997-10-24  2020-04-02
2013-05-02  2020-04-02
2012-03-26  2020-04-02
2012-02-08  2020-04-02
2017-04-03  2020-04-02







 (7)
 

  -- or --

 


 

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


Temperature, water, degrees Celsius, 25ft Downstream of pier

Most recent instantaneous value: 7.1 04-02-2020   11:30 EDT
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Discharge, cubic feet per second

Most recent instantaneous value: 1.97 04-02-2020   11:30 EDT
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Daily discharge, cubic feet per second -- statistics for Apr 2 based on 7 water years of record more
Min
(2016)
25th
percen-
tile
Median Most Recent
Instantaneous
Value Apr 2
Mean 75th
percen-
tile
Max
(2017)
1.20 1.4 1.7 1.97 3.4 5.3 9.07


Gage height, feet

Most recent instantaneous value: 1.73 04-02-2020   11:30 EDT
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, 25ft Downstream of pier

Most recent instantaneous value: 1050 04-02-2020   11:30 EDT
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Barometric pressure (BP), uncorrected, pounds per square inch

Most recent instantaneous value: 14.4050 04-02-2020   11:30 EDT
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Chloride, water, filtered, estimated by regression equation, milligrams per liter

Most recent instantaneous value: 290 04-02-2020   11:30 EDT
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