U.S. GEOLOGICAL SURVEY
WATER-RESOURCES CONDITIONS IN NEW YORK
FEBRUARY 2008
U.S. GEOLOGICAL SURVEY, WRD
New York District, Troy, NY
WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT
FOR FEBRUARY 2008
Prepared March 4, 2008
Troy--Summary Report
Provisional streamflow conditions at all sites monitored and included in this report in
eastern New York were in the excessive range during February. The maximum monthly mean
discharge for February for the period of record was recorded at three sites included in this
report: Wallkill River at Gardiner (74 years), Wappinger Creek near Wappingers Falls
(70 years), and Ramapo River at Ramapo (29 years). One site was not included in this report
due to extreme ice conditions and monthly mean discharges were estimated at several sites
due to ice conditions.
The total New York City reservoir system was at 97.1 percent of capacity on February 29;
normal for this period is 83.4 percent of capacity.
Ithaca--Summary Report
Provisional streamflow conditions at sites monitored and included in this report for
western New York were in the excessive range during February. Streamflow at Chemung River
at Chemung, Allegheny River at Salamanca, Cattaraugus Creek at Gowanda, Tonawanda Creek at
Batavia, Genesee River at Wellsville, Oatka Creek at Garbutt, Flint Creek at Phelps, and
Oneida Creek at Oneida was in the excessive range after being in the normal range last
month. Streamflow at Susquehanna River at Conklin and Fall Creek near Ithaca was in the
excessive range for the fourth consecutive month. Streamflow at Unadilla River at Rockdale
and Chenango River near Chenango Forks was in the excessive range for the third consecutive
month.
Coram--Summary Report
Provisional streamflow at Connetquot Brook near Central Islip was in the normal range
for the ninth consecutive month.
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Provisional Data for February 2008
MEAN FLOW FOR SELECTED GAGING STATIONS
Period
of record Flow Percent
Station (to date) (cfs) Exceedence Conditions
01306460 Connetquot Brook nr Central Islip 1978 31.7 25 Normal
01312000 Hudson River at Newcomb 1925-87,2002 309 13 Excessive
01318500 Hudson River at Hadley 1921 e2,800 18 Excessive
01321000 Sacandaga River nr Hope 1911 e1,400 8 Excessive
01334500 Hoosic River near Eagle Bridge 1910 e1,900 5 Excessive
01349150 Canajoharie Creek near Canajoharie 1993 e180 15 Excessive
01350000 Schoharie Creek at Prattsville 1902 e1,200 2 Excessive
01357500 Mohawk River at Cohoes 1917 12,600 3 Excessive
01371500 Wallkill River at Gardiner 1924 e3,700 0 Excessive
01372500 Wappinger Cr nr Wappingers Falls 1928 1,170 0 Excessive
01387400 Ramapo River at Ramapo 1979 471 0 Excessive
01413500 E Br Delaware River at Margaretville 1937 757 8 Excessive
01420500 Beaver Kill at Cooks Falls 1913 e1,300 2 Excessive
01423000 W Br Delaware River at Walton 1950 e1,800 2 Excessive
01426000 Oquaga Creek at Deposit **1941-73,2002 unavailable
01502500 Unadilla River at Rockdale 1930-95,2001 1,730 12 Excessive
01503000 Susquehanna River at Conklin 1912 e7,700 7 Excessive
01512500 Chenango River nr Chenango Forks 1912 e5,000 9 Excessive
01531000 Chemung River at Chemung 1903 e6,200 8 Excessive
03011020 Allegheny River at Salamanca 1903 e5,800 9 Excessive
04213500 Cattaraugus Creek at Gowanda 1940-98,2000 e1,400 17 Excessive
04217000 Tonawanda Creek at Batavia 1944 e500 15 Excessive
04221000* Genesee River at Wellsville 1916 e890 7 Excessive
04230500 Oatka Creek at Garbutt 1945 e420 23 Excessive
04234000 Fall Creek at Ithaca 1925 e400 7 Excessive
04235250 Flint Creek at Phelps 1960-95,2002 e190 12 Excessive
04243500 Oneida Creek at Oneida 1950 e310 17 Excessive
04250750 Sandy Creek near Adams 1958-95,2002 e480 15 Excessive
04256000 Independence River at Donnattsburg 1942 e330 4 Excessive
04262500 W Br Oswegatchie R nr Harrisville 1916 e700 15 Excessive
04270200 Little Salmon River at Bombay 1958-95,2002 excessive ice cover
04275500 Ausable River at Au Sable Forks 1910-68,1990 e700 8 Excessive
** Statistics used based on record for 1941-1973 water years
* Includes 04221500-Genesee River at Scio (1916-72)
e Estimate
MONTHLY MEAN DISCHARGE FOR SELECTED STREAMFLOW STATIONS
Provisional Data for February 2008
INDEX OBSERVATION WELLS
Water levels in S1810 have been affected by changes in ground-water withdrawals or sewering. Water level in feet below
land-surface datum unless site noted with * which indicates reference to sea level or ** which indicates water level in
feet above land-surface datum. Statistics used for A-654(replacement) are from A-636 (adjusted) prior to 2003, for Cm-622
(replacement) are from Cm-46(adjusted) prior to 2003, and for U-1619(replacement) are from U-405(adjusted) prior to 2003.
All published data for A-654 prior to 2006 water year should be adjusted by +1.00 ft due to measuring point correction.
Record Percent
County Well No. begins Date Water Level Exceedence Conditions
Albany A-654 2002 02/29 7.25 5 Excessive
Allegany Ag-261 2002 02/29 5.97 - --
Allegany Ag-262 2002 02/29 -0.47 - --
Broome Bm-128 1980 02/29 22.56 17 Excessive
Broome Bm-129 1985 02/29 68.00 58 Normal
Cattaraugus Ct-121 1951 02/29 6.77 63 Normal
Cayuga Cy-7 1965 02/29 18.02 66 Normal
Cayuga Cy-223 2005 -- -- - --
Chautauqua Cu-10 1939 02/29 8.81 2 Excessive
Chemung Cm-622 2002 02/29 23.09 23 Excessive
Chenango Cn-12 1975 02/29 8.76 39 Normal
Clinton Cl-145 1992 02/29 22.91 33 Normal
Clinton Cl-242 2006 -- -- - --
Columbia Cb-1071 2004 -- -- - --
Columbia Cb-1072 2006 -- -- - --
Cortland C-586 2008 -- -- - --
Cortland C-998 2002 02/29 4.55 - --
Delaware D-503 2002 02/29 4.36 - --
Dutchess Du-321 1948 02/29 68.29 26 Normal
Dutchess Du-1009 1967 02/29 12.57 4 Excessive
Erie E-1196 2004 02/29 11.47 - --
Essex Ex-150 2002 02/29 20.31 - --
Essex Ex-157 2006 -- -- - --
Franklin F-60 2005 02/29 4.12 - --
Franklin F-854 2005 02/29 30.92 - --
Fulton Fu-271 2002 02/29 15.64 - --
Genesee Gs-190 1998 02/29 26.84 49 Normal
Greene G-644 2003 02/14 16.23 - --
Greene G-831 2006 02/15 4.43 - --
Hamilton H-3 1966 02/29 12.19 13 Excessive
Herkimer He-627 2004 -- -- - --
Jefferson J-176 2005 -- -- - --
Lewis L-174 2002 02/29 22.20 - --
Livingston Lv-330 2004 02/25 8.79 - --
Madison M-178 1975 02/29 6.80 50 Normal
Monroe Mo-11 1984 02/29 8.24 47 Normal
Montgomery Mt-411 2004 -- -- - --
Niagara Ni-70 1973 02/29 3.29 66 Normal
Niagara Ni-869 2003 02/29 0.79 - --
Oneida Oe-151 1926 02/29 19.20 10 Excessive
Oneida Oe-1457 2003 02/29 42.63 - --
Onondaga Od-1825 2004 -- -- - --
Onondaga Od-1833 2004 -- -- - --
Ontario **Ot-900 1955 -- -- - --
Ontario Ot-1133 2002 02/29 2.79 - --
Orange O-2271 2002 02/29 5.88 - --
Orange O-2288 2007 -- -- - --
Orleans Ol-20 2004 02/29 19.86 - --
Oswego Ow-5013 2002 02/29 22.04 - --
Oswego Ow-5014 2002 02/29 22.47 - --
Otsego Og-23 1953 02/29 5.62 51 Normal
Putnam P-1205 2007 -- -- - --
Putnam P-1217 2005 02/29 12.77 - --
Rensselaer Re-703 1983 02/29 36.67 17 Excessive
Rockland Ro-18 1949 02/29 14.11 15 Excessive
Rockland Ro-543 2005 02/29 5.97 - --
St. Lawrence St-40 1953 02/29 5.55 11 Excessive
St. Lawrence St-404 1958 02/29 13.37 42 Normal
Saratoga Sa-529 1949 02/29 40.55 0 Excessive
Saratoga Sa-1285 2002 02/29 1.78 - --
Schenectady Sn-730 2004 02/29 4.65 - --
Schoharie So-602 2005 -- -- - --
Schoharie So-604 2006 -- -- - --
Schuyler Sy-706 2003 -- -- - --
Seneca Se-532 2005 02/29 0.52 - --
Seneca Se-533 2005 02/29 -0.27 - --
Steuben Sb-472 1965 02/29 7.37 16 Excessive
Suffolk *S1810 1976 02/27 50.58 36 Normal
Suffolk *S1812 1982 -- -- - --
Suffolk *S4271 1946 02/29 11.35 29 Normal
Suffolk *S5517 1948 02/29 41.28 51 Normal
Suffolk *S8833 1951 02/29 15.61 67 Normal
Sullivan Sv-535 2001 02/29 6.82 4 Excessive
Tioga Ti-891 2003 -- -- - --
Tompkins Tm-985 2005 -- -- - --
Tompkins Tm-1968 2005 -- -- - --
Ulster U-1619 2002 02/29 16.29 21 Excessive
Ulster U-1620 2005 -- -- - --
Warren Wr-80 2005 -- -- - --
Warren Wr-84 2008 -- -- - --
Washington W-533 1974 02/29 5.39 11 Excessive
Wayne Wn-592 2004 -- -- - --
Westchester We-5020 2003 02/29 9.61 - --
Wyoming Wo-4 1974 02/29 12.11 41 Normal
Yates Ya-180 2004 -- -- - --
INDEX OBSERVATION WELLS
LAKES AND RESERVOIRS
Elevation & Storage at End of Month
Reservoirs (Storage in million cubic feet) Current Year Last Year Average
01314500 Indian Lake nr Indian Lake, NY 3,127 2,832 2,071
01323500 Great Sacandaga Lake at Conklinville 20,530 19,260 13,540
04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft
above sea level
February 29, 2008 97.33 February 28, 2007 95.90
Average (1939-2006) 95.56
Maximum daily 99.48 (2006) Minimum daily 93.55 (1948)
NOTES, DEFINITIONS, ETC.
Percent exceedence is, for example, the percentage of December monthly mean discharges for
period of record equal to or greater than the current December monthly mean discharge.
Median = 50th percentile, which means that, for the period of record included in the analysis,
50% of the values are greater than the median and 50% are less.
Deficient range = values below the 25th percentile - for the period of record included in the
analysis, 75% of the values are greater and 25% are less than this value.
Excessive range = values above the 75th percentile - for the period of record included in the
analysis, 25% of the values are greater and 75% are less than this value.
Normal range = values between the 25th and 75th percentiles.
