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  • USGS 01102000 IPSWICH RIVER NEAR IPSWICH, MA

    PROVISIONAL DATA SUBJECT TO REVISION

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    LOCATION--Lat 42°39’35", long 70°53’39", Essex County, Hydrologic Unit 01090001, on left bank 200 ft downstream from Willowdale Dam, 1.5 mi downstream from Howlett Brook, and 4 mi upstream from Ipswich.
    DRAINAGE AREA--125 mi2.
    PERIOD OF RECORD--Discharge: June 1930 to current year.
    Water-quality records: Water years 1954, 1976–79.
    REVISED RECORDS--WSP 1621: 1930–58 (monthly runoff). WDR MA-RI-84-1: drainage area.
    GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 20.63 ft above National Geodetic Vertical Datum of 1929.
    REMARKS--Diversions upstream for municipal supply of Reading, Lynn, Peabody, Danvers, Salem, and Beverly. Occasional regulation by dams and reservoirs upstream.
    COOPERATION BY--Massachusetts Department of Conservation and Recreation, Office of Water Resources.

    ICE EFFECTS ON STREAMFLOW During winter, ice formation in streams can cause stage and corresponding discharge values to appear higher than expected during periods of no precipitation. Ice effects from partial ice cover or shore ice may be minor, where stage and discharge appear to increase at night and decrease to base-line conditions around midday for one or more days. Major ice effects from complete ice cover appear as constantly increasing stage and discharge over several days during prolonged cold periods. Stage and discharge values for streams experiencing minor ice effects will continue to be displayed on the web to enable the user to estimate the approximate base-line discharges. Note that this method of estimation should only be used when no runoff occurs. During periods of major ice effects, display of discharge data on the web will be temporarily discontinued to prevent misuse of erroneous discharge data. The discharge record will resume when it is determined that ice conditions are no longer present. Display of stage data during periods of minor and major ice effects will continue to be displayed on the web. Daily mean discharges will be estimated for all periods of ice-effected discharges.

    Boating safety tips
    This station managed by the Northborough, MA Field Office.

    Available Parameters Available Period
    All 2 Available Parameters for this site
      
    00060 Discharge 2007-10-01  2014-09-03
    00065 Gage height 2007-10-01  2014-09-03

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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: 6.9   09-03-2014  03:00 EDT
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    Daily discharge, cubic feet per second -- statistics for Sep 3 based on 84 years of record more
    Min
    (1999)
    Most Recent
    Instantaneous
    Value Sep 3
    25th
    percen-
    tile
    Median Mean 75th
    percen-
    tile
    Max
    (1955)
    0.91 6.9 7.8 17 33 34 236


    Gage height, feet

    Most recent instantaneous value: 2.65   09-03-2014  03:00 EDT
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