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USGS 01096000 SQUANNACOOK RIVER NEAR WEST GROTON, MA

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION--Lat 42° 38’03", long 71° 39’30", Middlesex County, Hydrologic Unit 01070004, on left bank 0.7 mi downstream from Trout Brook and 2.7 mi northwest of West Groton.
DRAINAGE AREA--63.7 mi2, excludes 2.16 mi2, above outlet of Ashby Reservoir.
PERIOD OF RECORD--Discharge: October 1949 to current year.
Water-quality records: Water year 1957.
REVISED RECORDS--WDR MA-RI-84-1: drainage area.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 244.27 ft above National Geodetic Vertical Datum of 1929.
REMARKS--Occasional regulation at low flow by mill upstream; regulation greater prior to 1961. Entire flow from 2.16 mi2 upstream from outlet of Ashby Reservoir diverted for municipal supply of Fitchburg except for occasional periods of spill.
COOPERATION BY-- Massachusetts Department Of Conservation and Recreation, Office of Water Resources.


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Available Parameters Available Period
  
1990-10-01  2019-11-17
2007-10-01  2019-11-17







 (7)
 

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


Discharge, cubic feet per second

Most recent instantaneous value: 29.6 11-17-2019   22:00 EST
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Nov 17 based on 70 water years of record more
Min
(1965)
Most Recent
Instantaneous
Value Nov 17
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2007)
8.80 29.6 30 58 102 126 541


Gage height, feet

Most recent instantaneous value: 1.76 11-17-2019   22:00 EST
Graph of  Gage height, feet

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