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USGS 01097000 ASSABET RIVER AT MAYNARD, MA

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION--Lat 42° 25’55", long 71° 27’01", Middlesex County, Hydrologic Unit 01070005, on right bank at Maynard, 150 ft upstream from bridge on State Highway 27, 1.7 mi downstream from Assabet Brook, and 7.1 mi upstream from confluence with Sudbury River.
DRAINAGE AREA--116 mi2.
PERIOD OF RECORD--Discharge: July 1941 to current year.
Water-quality records: Water years 1954, 1967–74.
REVISED RECORDS--WSP 1231: 1945–46.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 142.12 ft above National Geodetic Vertical Datum of 1929.
REMARKS--Occasional diurnal fluctuation at low flow by mills upstream; greater regulation prior to 1969. Since 1962, high flow affected by retarding reservoirs and, since 1970, occasional release at low flow by these reservoirs.
COOPERATION BY--Massachusetts Department of Conservation and Recreation, Office of Water Resources.


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This station managed by the Northborough MA Field Office.

Available Parameters Available Period
  
1990-10-01  2020-04-02
2007-10-01  2020-04-02







 (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: 396 04-02-2020   12:15 EDT
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Daily discharge, cubic feet per second -- statistics for Apr 2 based on 78 water years of record more
Min
(2006)
25th
percen-
tile
Median Most Recent
Instantaneous
Value Apr 2
Mean 75th
percen-
tile
Max
(1993)
109 283 376 396 518 640 1900


Gage height, feet

Most recent instantaneous value: 3.30 04-02-2020   12:15 EDT
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