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Water-Year Summary for Site 01100627

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2021: 2021-10-01 to 2022-09-30
 

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USGS Water-Year Summary 2021
01100627 SHAWSHEEN RIVER AT BALMORAL ST AT ANDOVER, MA
LOCATION - Lat 42°40'17", long 71°08'59" referenced to North American Datum of 1927, Essex County, MA, Hydrologic Unit 01070002, Located about 70 feet back from the right bank of the Shawsheen River and about 160 feet upsteam of Balmoral Street Bridge over the Shawsheen River in Andover.
DRAINAGE AREA - 72.8 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2006 to June 2012. February 2013 to current year.
GAGE - Water-stage recorder with satellite telemeter. Datum of gage is 40 ft above National Geodetic Vertical Datum of 1929, from topographic map.
COOPERATION - Town of Andover.
REMARKS - Records fair except those for discharges greater than 500 cfs and less than 80 cfs and data from Oct 1 to Dec 15, 2015, and those for estimated daily discharges, which are poor. High flows are occasionally affected by backwater from the Merrimack River about 3.6 miles downstream.