U.S. GEOLOGICAL SURVEY
WATER-RESOURCES CONDITIONS IN NEW YORK
OCTOBER 2009
U.S. GEOLOGICAL SURVEY, WRD
New York District, Troy, NY
WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT
FOR OCTOBER 2009
Prepared November 3, 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 normal to excessive during October.
Streamflow at Sacandaga River near Hope, Hoosic River near Eagle Bridge, and West Branch
Delaware River at Walton was in the excessive range for the fifth consecutive month.
Streamflow at Hudson River near Newcomb, Hudson River at Hadley, Canajoharie Creek near
Canajoharie, Mohawk River at Cohoes, and Wallkill River at Gardiner was in the excessive
range after being in the normal range last month. All other sites were in the normal range,
most of which were in the normal range for the second consecutive month.
The total New York City reservoir system was at 90.2 percent of capacity on October 30;
normal for this period is 69.2 percent of capacity.
Ithaca--Summary Report
Provisional streamflow conditions at all sites monitored and included in this report for
western New York were in the normal or excessive range for the month of October, with
most in the normal range. Chenango River near Chenango Forks was in the excessive range for
the third consecutive month. Unadilla River at Rockdale, Susquehanna River at Conklin,
Cattaraugus Creek at Gowanda, and Oneida Creek at Oneida were in the excessive range after
being in the normal range last month. Flint Creek at Phelps was in the normal range for the
third consecutive month. All other sites were in the normal range for the second consecutive
month.
Coram--Summary Report
Provisional streamflow at Connetquot Brook near Central Islip was in the normal range
for the third consecutive month.
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Provisional Data for October 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 24.8 30 Normal
01312000 Hudson River at Newcomb 1925-87,2002 530 17 Excessive
01318500 Hudson River at Hadley 1921 3,140 17 Excessive
01321000 Sacandaga River nr Hope 1911 1,370 14 Excessive
01334500 Hoosic River near Eagle Bridge 1910 1,020 12 Excessive
01349150 Canajoharie Creek near Canajoharie 1993 130 7 Excessive
01350000 Schoharie Creek at Prattsville 1902 351 30 Normal
01357500 Mohawk River at Cohoes 1917 5,980 14 Excessive
01371500 Wallkill River at Gardiner 1924 799 24 Excessive
01372500 Wappinger Cr nr Wappingers Falls 1928 96.0 37 Normal
01387400 Ramapo River at Ramapo 1979 53.9 52 Normal
01413500 E Br Delaware River at Margaretville 1937 178 37 Normal
01420500 Beaver Kill at Cooks Falls 1913 469 33 Normal
01423000 W Br Delaware River at Walton 1950 689 16 Excessive
01502500 Unadilla River at Rockdale 1930-95,2001 1,010 15 Excessive
01503000 Susquehanna River at Conklin 1912 3,500 16 Excessive
01512500 Chenango River nr Chenango Forks 1912 2,690 16 Excessive
01531000 Chemung River at Chemung 1903 894 36 Normal
03011020 Allegheny River at Salamanca 1903 1,600 31 Normal
04213500 Cattaraugus Creek at Gowanda 1940-98,2000 620 23 Excessive
04217000 Tonawanda Creek at Batavia 1944 110 29 Normal
04221000* Genesee River at Wellsville 1916 211 28 Normal
04230500 Oatka Creek at Garbutt 1945 67.5 37 Normal
04234000 Fall Creek near Ithaca 1925 126 28 Normal
04235250 Flint Creek at Phelps 1960-95,2002 10.5 53 Normal
04243500 Oneida Creek at Oneida 1950 144 16 Excessive
04250750 Sandy Creek near Adams 1958-95,2002 148 47 Normal
04256000 Independence River at Donnattsburg 1942 204 28 Normal
04262500 W Br Oswegatchie R nr Harrisville 1916 525 28 Normal
04270200 Little Salmon River at Bombay 1958-95,2002 94.7 30 Normal
04275500 Ausable River at Au Sable Forks 1910-68,1990 628 28 Normal
* Includes 04221500-Genesee River at Scio (1916-72)
MONTHLY MEAN DISCHARGE FOR SELECTED STREAMFLOW STATIONS
Provisional Data for October 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 10/31 8.96 12 Excessive
Albany A-666 2008 10/15 5.07 - --
Allegany Ag-261 2002 10/31 4.83 17 Excessive
Allegany Ag-262 2002 10/31 -0.91 5 Excessive
Broome Bm-128 1980 10/31 26.22 46 Normal
Broome Bm-129 1985 10/31 68.23 49 Normal
Cattaraugus Ct-121 1951 10/31 7.68 42 Normal
Cattaraugus Ct-2498 2009 10/31 27.60 - --
Cayuga Cy-7 1965 10/31 19.70 58 Normal
Cayuga Cy-223 2005 10/08 13.98 - --
Chautauqua Cu-5 1949 10/31 0.74 0 Excessive
Chautauqua Cu-862 2009 10/31 33.67 - --
Chemung Cm-622 2002 10/31 23.50 13 Excessive
Chenango Cn-12 1975 10/31 5.30 4 Excessive
Clinton Cl-145 1992 10/31 23.72 69 Normal
Clinton Cl-242 2006 10/05 3.33 - --
Columbia Cb-1071 2004 10/31 9.94 44 Normal
Columbia Cb-1072 2006 10/13 8.91 - --
Cortland C-586 2008 10/31 5.66 - --
Cortland C-998 2002 10/31 4.75 17 Excessive
Delaware D-503 2002 10/27 5.25 28 Normal
Delaware D-522 2009 10/27 1.01 - --
Dutchess Du-321 1948 10/31 69.53 45 Normal
Dutchess Du-1009 1967 10/31 16.65 42 Normal
Erie E-1196 2004 10/31 12.02 23 Excessive
Essex Ex-150 2002 10/31 19.53 14 Excessive
Essex Ex-157 2006 10/07 18.15 - --
Franklin F-60 2005 10/31 3.57 - --
Franklin F-854 2005 10/31 33.21 - --
Fulton Fu-271 2002 10/31 14.91 24 Excessive
Genesee Gs-190 1998 10/31 32.94 55 Normal
Genesee Gs-217 2008 10/05 9.56 - --
Greene G-644 2003 -- -- - --
Greene G-831 2006 -- -- - --
Hamilton H-3 1966 10/31 12.72 15 Excessive
Herkimer He-627 2004 10/31 29.75 - --
Herkimer He-1836 2009 10/14 53.97 - --
Jefferson J-176 2005 10/31 2.66 - --
Jerrerson J-178 2009 -- -- - --
Lewis L-174 2002 10/31 23.19 3 Excessive
Livingston Lv-330 2004 10/31 11.78 41 Normal
Madison M-178 1975 10/31 7.66 20 Excessive
Madison M-292 2009 -- -- - --
Monroe Mo-11 1984 10/31 8.64 80 Deficient
Montgomery Mt-411 2004 10/31 32.84 - --
Niagara Ni-70 1973 10/31 4.34 16 Excessive
Niagara Ni-869 2003 10/31 0.24 19 Excessive
Oneida Oe-151 1926 10/31 25.85 36 Normal
Oneida Oe-1457 2003 10/31 43.46 81 Deficient
Oneida Oe-1466 2007 10/15 4.01 - --
Onondaga Od-1825 2004 10/31 12.64 - --
Onondaga Od-1833 2004 10/31 13.69 28 Normal
Ontario **Ot-900 1955 -- -- - --
Ontario Ot-1133 2002 10/31 2.85 7 Excessive
Orange O-2271 2002 10/31 6.18 31 Normal
Orange O-2288 2007 10/31 5.05 - --
Orleans Ol-20 2004 10/31 20.26 - --
Orleans Ol-27 2009 10/31 40.76 - --
Oswego Ow-5013 2002 10/31 23.30 52 Normal
Oswego Ow-5014 2002 10/31 23.19 32 Normal
Otsego Og-23 1953 10/31 5.05 11 Excessive
Putnam P-1205 2007 10/19 3.00 - --
Putnam P-1217 2005 10/31 13.81 - --
Rensselaer Re-703 1983 10/31 37.12 23 Excessive
Rockland Ro-18 1949 10/31 23.95 60 Normal
Rockland Ro-543 2005 10/31 7.57 - --
St. Lawrence St-40 1953 10/31 6.12 11 Excessive
St. Lawrence St-404 1958 10/31 13.88 18 Excessive
Saratoga Sa-529 1949 10/31 41.16 5 Excessive
Saratoga Sa-1285 2002 10/31 2.15 7 Excessive
Schenectady Sn-730 2004 10/31 5.81 - --
Schoharie So-602 2005 -- -- - --
Schoharie So-604 2006 -- -- - --
Schuyler Sy-706 2003 10/31 8.61 73 Normal
Schuyler Sy-722 2009 -- -- - --
Seneca Se-532 2005 10/31 0.63 60 Normal
Seneca Se-533 2005 10/31 0.52 62 Normal
Steuben Sb-472 1965 10/31 9.45 35 Normal
Suffolk *S1810 1976 10/31 52.45 22 Excessive
Suffolk *S1812 1982 10/31 48.25 14 Excessive
Suffolk *S4271 1946 10/31 11.89 13 Excessive
Suffolk *S5517 1948 10/31 42.90 50 Normal
Suffolk *S8833 1951 10/31 16.77 51 Normal
Sullivan Sv-535 2001 10/31 7.92 18 Excessive
Tioga Ti-891 2003 10/31 20.72 72 Normal
Tompkins Tm-985 2005 10/31 4.53 - --
Tompkins Tm-1968 2005 10/31 18.47 - --
Ulster U-1619 2002 10/31 16.75 9 Excessive
Ulster U-1620 2005 10/31 25.67 - --
Warren Wr-80 2005 10/31 19.48 - --
Warren Wr-84 2008 10/14 41.01 - --
Washington W-533 1974 10/31 6.19 17 Excessive
Wayne Wn-592 2004 10/31 8.99 37 Normal
Westchester We-5020 2003 10/31 14.08 66 Normal
Wyoming Wo-4 1974 10/31 13.08 34 Normal
Yates Ya-180 2004 10/31 6.05 96 Deficient
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 2,843 3,582 2,749
01323500 Great Sacandaga Lake at Conklingville 27,250 25,640 20,860
04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft
above sea level
October 31, 2009 95.90 October 31, 2008 95.99
Average (1939-2008) 94.97
Maximum daily 99.04 (1978) Minimum daily 92.90 (1942)
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.
