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ICE EFFECTS ON STREAMFLOW - During winter, ice formation may cause stage and discharge values to appear higher than expected. Ice effects may be minor (occurring only at night and early morning) with baseline flows obvious, or the effects may be major (stage constantly increases over several days or weeks) resulting in greatly erroneous discharge. Streamgages experiencing minor ice conditions will continue to display stage and discharge values to enable users to estimate the approximate base-line stage and discharge. Streamgages experiencing major ice conditions will have the discharge record temporarily disabled to prevent use of erroneous discharge values. The discharge record will resume when it is determined that ice conditions are no longer present. Daily mean discharges during periods of ice effect will be estimated after detailed data analysis.

NOTICE (11/28/2017) -- Data collection at the following gage will be discontinued on December 31, 2017 due to funding reductions from partner agencies. Although historic data will remain accessible, no new data will be collected unless one or more new funding partners are found. Users who can contribute funding for the non-Federal share of costs to continue operation of this streamgage should contact Timothy Sargent at the USGS New England Water Science Center - Connecticut Office (860-291-6754) or email at tcsargen@usgs.gov.
  • 01209510 Saugatuck River at Route 1 at Westport
NOTICE (11/01/2017) -- Starting on February 01, 2018 vertical gage datum at the following locations will be referenced to North American Vertical Datum of 1988 (NAVD 88), this datum reference will replace the current vertical gage datum reference National Geodetic Vertical Datum of 1929 (NGVD 29). Users with questions about these streamgages should contact Timothy Sargent, at the USGS New England Water Science Center - Connecticut Office(860-291-6754) or email at tcsargen@usgs.gov.

PROVISIONAL DATA SUBJECT TO REVISION


USGS 410628073413301 CT- GW 21 GREENWICH, CT


Depth to water level, feet below land surface

Most recent instantaneous value: 41.54 01-17-2018   10:00 ESTNext
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Daily depth to water level, feet below land surface -- statistics for Jan 17 based on 16 years of record more
Min
(2006)
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2002)
Most Recent
Instantaneous
Value Jan 17
18.25 19.97 24.77 25.27 28.26 39.04 41.54

USGS 411832072325501 CT-CL 223 CLINTON, CT


Depth to water level, feet below land surface

Most recent instantaneous value: 3.60 01-17-2018   09:00 ESTPrev   Next
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USGS 412429073165101 CT-NT 15 NEWTOWN, CT


Depth to water level, feet below land surface

Most recent instantaneous value: 6.81 01-17-2018   09:00 ESTPrev   Next
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Daily depth to water level, feet below land surface -- statistics for Jan 17 based on 9 years of record more
Min
(2009)
25th
percen-
tile
Median Mean 75th
percen-
tile
Most Recent
Instantaneous
Value Jan 17
Max
(2016)
3.16 3.58 4.53 4.54 5.12 6.81 7.04

USGS 412825072410501 CT-D 117 DURHAM, CT


Depth to water level, feet below land surface

Most recent instantaneous value: 10.23 01-17-2018   09:00 ESTPrev   Next
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Daily depth to water level, feet below land surface -- statistics for Jan 17 based on 8 years of record more
Min
(2014)
25th
percen-
tile
Most Recent
Instantaneous
Value Jan 17
Mean Median 75th
percen-
tile
Max
(2011)
9.39 9.93 10.23 10.23 10.29 10.67 10.78

USGS 412916073121701 CT-SB 42 SOUTHBURY, CT


Depth to water level, feet below land surface

Most recent instantaneous value: 13.62 01-17-2018   10:00 ESTPrev   Next
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Daily depth to water level, feet below land surface -- statistics for Jan 17 based on 15 years of record more
Min
(2006)
25th
percen-
tile
Median Mean 75th
percen-
tile
Most Recent
Instantaneous
Value Jan 17
Max
(2017)
11.82 12.28 12.90 13.29 13.60 13.62 17.93

USGS 413535072253701 CT-MB 32 MARLBOROUGH, CT