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PROVISIONAL DATA SUBJECT TO REVISION


USGS 01303000 MILL NECK CREEK AT MILL NECK NY


Discharge, cubic feet per second

Most recent instantaneous value: 5.46 06-07-2026   12:30 ESTNext
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 81 water years of record more
Min
(1967)
Most Recent
Instantaneous
Value Jun 7
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2006)
3.80 5.46 7.1 8.3 8.6 9.9 18.7

USGS 01303500 COLD SPRING BROOK AT COLD SPRING HARBOR NY


Discharge, cubic feet per second

Most recent instantaneous value: 1.79 06-07-2026   12:15 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 75 water years of record more
Min
(1966)
Most Recent
Instantaneous
Value Jun 7
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2013)
0.48 1.79 2 2.7 3 3.5 12.1

USGS 01304000 NISSEQUOGUE RIVER NEAR SMITHTOWN NY
*** There are no data available on the Waterdata system for the time period specified,
    although data may be available in the files of the local USGS office operating the station.

USGS 01304500 PECONIC RIVER AT RIVERHEAD NY


Discharge, cubic feet per second

Most recent instantaneous value: 17.9 06-07-2026   12:00 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 83 water years of record more
Min
(1995)
Most Recent
Instantaneous
Value Jun 7
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(1984)
17.0 17.9 28 38 43 54 135

USGS 01305000 CARMANS RIVER AT YAPHANK NY


Discharge, cubic feet per second

Most recent instantaneous value: 13.8 06-07-2026   12:00 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 83 water years of record more
Most Recent
Instantaneous
Value Jun 7
Min
(1966)
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(1984)
13.8 14.0 21 25 26 30 48.3

USGS 01305500 SWAN RIVER AT EAST PATCHOGUE NY


Discharge, cubic feet per second

Most recent instantaneous value: 10.4 06-07-2026   12:15 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 79 water years of record more
Min
(1981)
25th
percen-
tile
Most Recent
Instantaneous
Value Jun 7
Mean Median 75th
percen-
tile
Max
(2006)
8.10 10 10.4 13 13 16 23.4

USGS 01306460 CONNETQUOT BK NR CENTRAL ISLIP NY


Discharge, cubic feet per second

Most recent instantaneous value: 18.6 06-07-2026   12:00 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 48 water years of record more
Min
(1995)
Most Recent
Instantaneous
Value Jun 7
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2000)
15.0 18.6 23 28 31 37 78.0

USGS 01308000 SAMPAWAMS CREEK AT BABYLON NY


Discharge, cubic feet per second

Most recent instantaneous value: Dis 06-07-2026   12:00 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 78 water years of record more
Most Recent
Instantaneous
Value Jun 7
Min
(1988)
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2013)
-- unavailable -- 4.20 7.4 8.7 11 13 44.3

USGS 01308500 CARLLS RIVER AT BABYLON NY


Discharge, cubic feet per second

Most recent instantaneous value: 13.0 06-07-2026   12:00 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 81 water years of record more
Min
(1995)
Most Recent
Instantaneous
Value Jun 7
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2000)
12.0 13.0 19 24 29 32 150

USGS 01309500 MASSAPEQUA CREEK AT MASSAPEQUA NY


Discharge, cubic feet per second

Most recent instantaneous value: 1.26 06-07-2026   12:45 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 81 water years of record more
Most Recent
Instantaneous
Value Jun 7
Min
(2023)
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(1980)
1.26 1.42 4.4 7.3 9.7 13 32.0

USGS 01309950 BELLMORE CREEK NEAR BELLMORE NY


Discharge, cubic feet per second

Most recent instantaneous value: 1.84 06-07-2026   12:15 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 43 water years of record more
Min
(1987)
Most Recent
Instantaneous
Value Jun 7
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2013)
1.40 1.84 2.9 4.3 5.4 7.1 29.1

USGS 01309990 BELLMORE CREEK TRIBUTARY AT BELLMORE NY


Discharge, cubic feet per second

Most recent instantaneous value: 0.00 06-07-2026   13:00 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 44 water years of record more
Most Recent
Instantaneous
Value Jun 7
Min
(1995)
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2013)
0.00 0.00 0.46 0.93 3.3 4.4 50.8

USGS 01310500 EAST MEADOW BROOK AT FREEPORT NY


Discharge, cubic feet per second

Most recent instantaneous value: 2.78 06-07-2026   12:45 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 81 water years of record more
Min
(2016)
Most Recent
Instantaneous
Value Jun 7
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2013)
1.19 2.78 4.3 10 15 17 244

USGS 01311500 VALLEY STREAM AT VALLEY STREAM NY


Discharge, cubic feet per second

Most recent instantaneous value: 1.34 06-07-2026   12:00 ESTPrev   Next
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Daily discharge, cubic feet per second -- statistics for Jun 7 based on 71 water years of record more
Min
(1965)
25th
percen-
tile
Most Recent
Instantaneous
Value Jun 7
Median Mean 75th
percen-
tile
Max
(2013)
0.00 0.36 1.34 1.7 3.3 3.9 48.1