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Water-Year Summary for Site 413758070320501

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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.


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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
62614 Elevation, lake/res, NGVD29(Mean)  

Water year 2025: 2025-10-01 to 2026-09-30
 
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USGS Water-Year Summary 2025
413758070320501 ASHUMET POND NEAR FALMOUTH, MA
LOCATION - Lat 41°38'03", long 70°32'07" referenced to North American Datum of 1927, Barnstable County, MA, Hydrologic Unit 01090002, on western shore of Ashumet Pond, about 50 ft south of boat ramp near Falmouth.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Daily mean elevation, June 2002 to current year. Prior to June 2002, monthly or twice-monthly measurements from December 1972 to January 2002 (winter periods not measured; data not published but available in NWIS database only).
GAGE - Water stage recorder with telephone telemeter. Standpipe with siphon-tube connection to Ashumet Pond. Datum of gage is National Geodetic Vertical Datum of 1929.
COOPERATION - Air Force Center for Engineering and the Environment.
REMARKS - Records are good. Periods of missing record are not estimated.
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 47.77 ft Mar. 30, Apr. 9, 10, 2010, minimum, 41.61 ft, Nov. 2, 4, 5, 6, 2002. Maximum and minimum elevations are for periods of recorded data and may have been higher or lower during periods of missing record.