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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.


Current Conditions for Massachusetts: Lakes and reservoirs -- 7 site(s) found

PROVISIONAL DATA SUBJECT TO REVISION




Customize table to display other current-condition parameters
Station
Number
Station name Date/Time Reser-
voir
eleva-
tion
above
datum,
feet
Elev-
ation,
feet
above
NGVD
Reser-
voir
storage
Mgal
Lake or
reser-
voir
elev-
ation,
NGVD,
feet
Group MERRIMACK RIVER BASIN
01098499 LAKE COCHITUATE AT FRAMINGHAM, MA  08/23 14:00 EDT 8.15 -- -- -- 
Group MYSTIC RIVER BASIN
422302071083801 FRESH POND IN GATE HOUSE AT CAMBRIDGE, MA  08/23 13:45 EDT 15.88 -- 1,450.1 -- 
Group CHARLES RIVER BASIN
01104425 HOBBS BRK AT TRAPELO RD AT LINCOLN, MA  08/23 13:45 EDT 180.78 -- -- -- 
01104430 HOBBS BK BELOW CAMBRIDGE RES NR KENDALL GREEN, MA 
      GATE HOUSE  08/23 13:45 EDT 180.82 -- 2,434.4 -- 
01104480 STONY BROOK RESERVOIR AT DAM NEAR WALTHAM, MA  08/23 13:45 EDT 78.49 -- 359.7 -- 
Group CAPE COD RIVER BASIN
413758070320501 ASHUMET POND, FALMOUTH, MA  08/23 13:15 EDT -- -- -- 45.69 
Group WESTFIELD RIVER BASIN
01179500 WESTFIELD RIVER AT KNIGHTVILLE, MA  08/23 13:30 EDT 1.52 -- -- -- 

Data status codes:
  --     Parameter not determined