U.S. GEOLOGICAL SURVEY
WATER-RESOURCES CONDITIONS IN NEW YORK
MAY 2009
U.S. GEOLOGICAL SURVEY, WRD
New York District, Troy, NY
WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT
FOR MAY 2009
Prepared June 1, 2009
Troy--Summary Report
Provisional streamflow conditions at all sites monitored and included in this report in
eastern New York varied within the region from deficient to excessive during May. Streamflow
at Schoharie Creek at Prattsville was in the deficient range for the second consecutive month.
Streamflow at Hudson River near Newcomb was in the excessive range after being in the normal
range last month. Streamflow at West Branch Oswegatchie River near Harrisville was in the
excessive range after being in the deficient range last month. Streamflow at all other sites
was in the normal range.
The total New York City reservoir system was at 98.3 percent of capacity on May 29;
normal for this period is 100.0 percent of capacity.
Ithaca--Summary Report
Provisional streamflow conditions at all sites monitored and included in this report for
western New York were either in the deficient or normal ranges for the month of May, with most
gages in the deficient range for the second consecutive month. Unadilla River at Rockdale,
Susquehanna River at Conklin, Oneida Creek at Oneida, and Chenango River near Chenango Forks
were back in the normal range after experiencing deficient flows for the month of April.
Chemung River at Chemung, Allegheny River at Salamanca, Cattaraugus Creek at Gowanda,
Tonawanda Creek at Batavia, Genesee River at Wellsville, Oatka Creek at Garbutt, and Flint
Creek at Phelps were in the deficient range for the second consecutive month. Streamflow at
Fall Creek at Ithaca fell into the deficient range after experiencing normal flows for the
last four consecutive months.
Coram--Summary Report
Provisional streamflow at Connetquot Brook near Central Islip was in the normal range
for the fourth consecutive month.
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Provisional Data for May 2009
MEAN FLOW FOR SELECTED GAGING STATIONS
Period
of record Flow Percent
Station (to date) (cfs) Exceedence Conditions
01306460 Connetquot Brook nr Central Islip 1978 35.7 36 Normal
01312000 Hudson River at Newcomb 1925-87,2002 1,080 23 Excessive
01318500 Hudson River at Hadley 1921 4,920 48 Normal
01321000 Sacandaga River nr Hope 1911 1,790 38 Normal
01334500 Hoosic River near Eagle Bridge 1910 828 74 Normal
01349150 Canajoharie Creek near Canajoharie 1993 40.5 61 Normal
01350000 Schoharie Creek at Prattsville 1902 332 77 Deficient
01357500 Mohawk River at Cohoes 1917 4,720 70 Normal
01371500 Wallkill River at Gardiner 1924 948 51 Normal
01372500 Wappinger Cr nr Wappingers Falls 1928 320 42 Normal
01387400 Ramapo River at Ramapo 1979 153 42 Normal
01413500 E Br Delaware River at Margaretville 1937 258 71 Normal
01420500 Beaver Kill at Cooks Falls 1913 780 39 Normal
01423000 W Br Delaware River at Walton 1950 493 63 Normal
01502500 Unadilla River at Rockdale 1930-95,2001 751 53 Normal
01503000 Susquehanna River at Conklin 1912 2,850 70 Normal
01512500 Chenango River nr Chenango Forks 1912 1,920 64 Normal
01531000 Chemung River at Chemung 1903 1,530 84 Deficient
03011020 Allegheny River at Salamanca 1903 1,910 77 Deficient
04213500 Cattaraugus Creek at Gowanda 1940-98,2000 368 85 Deficient
04217000 Tonawanda Creek at Batavia 1944 87.8 85 Deficient
04221000* Genesee River at Wellsville 1916 238 80 Deficient
04230500 Oatka Creek at Garbutt 1945 118 91 Deficient
04234000 Fall Creek near Ithaca 1925 104 81 Deficient
04235250 Flint Creek at Phelps 1960-95,2002 36.1 94 Deficient
04243500 Oneida Creek at Oneida 1950 98.5 75 Normal
04250750 Sandy Creek near Adams 1958-95,2002 307 27 Normal
04256000 Independence River at Donnattsburg 1942 302 30 Normal
04262500 W Br Oswegatchie R nr Harrisville 1916 971 15 Excessive
04270200 Little Salmon River at Bombay 1958-95,2002 146 31 Normal
04275500 Ausable River at Au Sable Forks 1910-68,1990 1,500 34 Normal
* Includes 04221500-Genesee River at Scio (1916-72)
MONTHLY MEAN DISCHARGE FOR SELECTED STREAMFLOW STATIONS
Provisional Data for May 2009
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 5/31 8.18 52 Normal
Albany A-666 2008 -- -- - --
Allegany Ag-261 2002 5/31 5.02 20 Excessive
Allegany Ag-262 2002 5/31 -0.51 44 Normal
Broome Bm-128 1980 5/31 24.39 88 Deficient
Broome Bm-129 1985 5/31 67.13 57 Normal
Cattaraugus Ct-121 1951 5/31 7.34 96 Deficient
Cattaraugus Ct-2498 2009 5/31 26.56 - --
Cayuga Cy-7 1965 5/31 19.12 97 Deficient
Cayuga Cy-223 2005 5/11 12.54 - --
Chautauqua Cu-5 1949 5/31 2.84 52 Normal
Chautauqua Cu-862 2009 5/31 34.39 - --
Chemung Cm-622 2002 5/31 22.92 26 Normal
Chenango Cn-12 1975 5/31 8.45 32 Normal
Clinton Cl-145 1992 5/31 22.76 68 Normal
Clinton Cl-242 2006 -- -- - --
Columbia Cb-1071 2004 5/31 10.33 - --
Columbia Cb-1072 2006 -- -- - --
Cortland C-586 2008 -- -- - --
Cortland C-998 2002 5/31 4.68 19 Excessive
Delaware D-503 2002 5/31 5.38 64 Normal
Delaware D-522 2009 5/31 0.69 - --
Dutchess Du-321 1948 5/31 67.74 35 Normal
Dutchess Du-1009 1967 5/31 13.73 55 Normal
Erie E-1196 2004 5/31 12.33 - --
Essex Ex-150 2002 5/31 16.74 55 Normal
Essex Ex-157 2006 -- -- - --
Franklin F-60 2005 5/31 3.51 - --
Franklin F-854 2005 5/31 30.87 - --
Fulton Fu-271 2002 5/31 14.40 100 Deficient
Genesee Gs-190 1998 5/31 25.33 55 Normal
Genesee Gs-217 2008 -- -- - --
Greene G-644 2003 5/22 17.84 - --
Greene G-831 2006 5/21 7.12 - --
Hamilton H-3 1966 5/31 11.75 38 Normal
Herkimer He-627 2004 5/31 28.41 - --
Herkimer He-1836 2009 -- -- - --
Jefferson J-176 2005 5/31 1.52 - --
Jerrerson J-178 2009 -- -- - --
Lewis L-174 2002 5/31 21.68 24 Excessive
Livingston Lv-330 2004 5/31 9.71 - --
Madison M-178 1975 5/31 8.35 77 Deficient
Madison M-292 2009 5/07 131.99 - --
Monroe Mo-11 1984 5/31 8.41 94 Deficient
Montgomery Mt-411 2004 5/31 32.95 - --
Niagara Ni-70 1973 5/31 4.36 82 Deficient
Niagara Ni-869 2003 5/31 1.08 - --
Oneida Oe-151 1926 5/31 18.18 57 Normal
Oneida Oe-1457 2003 5/31 42.07 - --
Oneida Oe-1466 2007 -- -- - --
Onondaga Od-1825 2004 5/31 12.72 - --
Onondaga Od-1833 2004 5/31 13.98 - --
Ontario **Ot-900 1955 -- -- - --
Ontario Ot-1133 2002 5/31 2.80 57 Normal
Orange O-2271 2002 5/31 6.55 52 Normal
Orange O-2288 2007 5/31 4.58 - --
Orleans Ol-20 2004 5/31 18.59 - --
Orleans Ol-27 2009 5/31 41.93 - --
Oswego Ow-5013 2002 5/31 22.45 51 Normal
Oswego Ow-5014 2002 5/31 22.75 49 Normal
Otsego Og-23 1953 5/31 5.65 40 Normal
Putnam P-1205 2007 -- -- - --
Putnam P-1217 2005 5/31 13.89 - --
Rensselaer Re-703 1983 5/31 36.96 47 Normal
Rockland Ro-18 1949 5/31 17.81 93 Deficient
Rockland Ro-543 2005 5/31 7.41 - --
St. Lawrence St-40 1953 5/31 5.29 54 Normal
St. Lawrence St-404 1958 5/31 13.19 60 Normal
Saratoga Sa-529 1949 5/31 40.75 4 Excessive
Saratoga Sa-1285 2002 5/31 2.16 73 Normal
Schenectady Sn-730 2004 5/31 6.93 - --
Schoharie So-602 2005 5/22 23.29 - --
Schoharie So-604 2006 5/22 9.40 - --
Schuyler Sy-706 2003 5/31 7.66 - --
Schuyler Sy-722 2009 -- -- - --
Seneca Se-532 2005 5/31 1.49 - --
Seneca Se-533 2005 5/31 1.08 - --
Steuben Sb-472 1965 5/31 9.56 96 Deficient
Suffolk *S1810 1976 -- -- - --
Suffolk *S1812 1982 -- -- - --
Suffolk *S4271 1946 5/31 11.84 27 Normal
Suffolk *S5517 1948 5/31 42.55 66 Normal
Suffolk *S8833 1951 5/31 17.33 77 Deficient
Sullivan Sv-535 2001 5/31 8.91 30 Normal
Tioga Ti-891 2003 5/31 18.15 - --
Tompkins Tm-985 2005 -- -- - --
Tompkins Tm-1968 2005 5/31 16.18 - --
Ulster U-1619 2002 5/31 16.52 57 Normal
Ulster U-1620 2005 5/31 26.11 - --
Warren Wr-80 2005 5/31 17.58 - --
Warren Wr-84 2008 -- -- - --
Washington W-533 1974 5/31 6.70 84 Deficient
Wayne Wn-592 2004 5/31 8.74 - --
Westchester We-5020 2003 5/31 11.64 - --
Wyoming Wo-4 1974 5/31 12.63 82 Deficient
Yates Ya-180 2004 5/31 4.45 - --
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 4,494 4,456 4,594
01323500 Great Sacandaga Lake at Conklinville 34,600 33,520 33,660
04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft
above sea level
May 31, 2009 97.21 May 31, 2008 97.31
Average (1939-2007) 98.31
Maximum daily 101.55 (1993) Minimum daily 94.91 (1965)
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.
