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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.


* IMPORTANT: Next Generation Station Page

USGS 415354069585201 MA-WNW 17R WELLFLEET,MA

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION--Lat 41°53'54", long 69°58'52", Barnstable County, Hydrologic Unit 01090002, 50 ft west of Marconi Beach Road, and 0.4 mi south of intersection with Marconi Station Road in Wellfleet, MA.
AQUIFER--Sand and gravel, glaciated regions; outwash deposits.
WELL CHARACTERISTICS--Drilled observation water-table well, depth 43.17 ft, screened 31.5 ft to 41.5 ft.
INSTRUMENTATION--Digital recorder with cellular telephone telemeter, May 2012 to Sept. 2018 (WNW 17), Sept. 2018 current year (WNW 17R). Monthly measurements prior to May 2012.
DATUM--Elevation of land-surface datum of well is 19.10 ft above National Geodetic Vertical Datum of 1929. Measuring point: top of well casing, 2.41 ft above land-surface datum.
PERIOD OF RECORD-- November 1962 to current year.
COOPERATION BY-- Massachusetts Department of Conservation and Recreation, Office of Water Resources.

Available Parameters Available Period
  
2019-10-30  2020-02-27








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Depth to water level, feet below land surface

Most recent instantaneous value: 10.94 02-27-2020   06:00 EST
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