U.S. GEOLOGICAL SURVEY
WATER-RESOURCES CONDITIONS IN NEW YORK
DECEMBER 2007
U.S. GEOLOGICAL SURVEY, WRD
New York District, Troy, NY
WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT
FOR DECEMBER 2007
Prepared January 3, 2008
Troy--Summary Report
Provisional streamflow conditions at all sites monitored and included in this report in
eastern New York were in the excessive to normal range during December. Streamflow at
Canajoharie Creek near Canajoharie, Schoharie Creek at Prattsville, Mohawk River at Cohoes,
East Branch Delaware River at Margaretville, West Branch Delaware River at Walton, and
Little Salmon River at Bombay was in the excessive range for the month. All other sites
were in the normal range for the month.
The total New York City reservoir system was at 90.7 percent of capacity on December 28;
normal for this period is 76.9 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 to normal range during December. Streamflow at
Unadilla River at Rockdale, Chenango River near Chenango Forks, Chemung River at Chemung,
Allegheny River at Salamanca, Cattaraugus Creek at Gowanda, Tonawanda Creek at Batavia,
Genesee River at Wellsville, 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 second consecutive month. Streamflow
at Flint Creek at Phelps was in the normal range after being in the deficient range last
month. Streamflow at Oatka Creek at Garbutt was 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 seventh consecutive month.
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Provisional Data for December 2007
MEAN FLOW FOR SELECTED GAGING STATIONS
Period
of record Flow Percent
Station (to date) (cfs) Exceedence Conditions
01306460 Connetquot Brook nr Central Islip 1978 23.7 62 Normal
01312000 Hudson River at Newcomb 1925-87,2002 320 36 Normal
01318500 Hudson River at Hadley 1921 e2,600 38 Normal
01321000 Sacandaga River nr Hope 1911 e850 55 Normal
01334500 Hoosic River near Eagle Bridge 1910 1,120 36 Normal
01349150 Canajoharie Creek near Canajoharie 1993 140 24 Excessive
01350000 Schoharie Creek at Prattsville 1902 765 22 Excessive
01357500 Mohawk River at Cohoes 1917 8,270 22 Excessive
01371500 Wallkill River at Gardiner 1924 1,720 28 Normal
01372500 Wappinger Cr nr Wappingers Falls 1928 351 30 Normal
01387400 Ramapo River at Ramapo 1979 277 33 Normal
01413500 E Br Delaware River at Margaretville 1937 515 22 Excessive
01420500 Beaver Kill at Cooks Falls 1913 808 27 Normal
01423000 W Br Delaware River at Walton 1950 1,210 17 Excessive
01426000 Oquaga Creek at Deposit **1941-73,2002 unavailable
01502500 Unadilla River at Rockdale 1930-95,2001 1,400 20 Excessive
01503000 Susquehanna River at Conklin 1912 6,400 16 Excessive
01512500 Chenango River nr Chenango Forks 1912 4,810 11 Excessive
01531000 Chemung River at Chemung 1903 4,720 12 Excessive
03011020 Allegheny River at Salamanca 1903 5,830 5 Excessive
04213500 Cattaraugus Creek at Gowanda 1940-98,2000 2,070 1 Excessive
04217000 Tonawanda Creek at Batavia 1944 436 12 Excessive
04221000* Genesee River at Wellsville 1916 854 6 Excessive
04230500 Oatka Creek at Garbutt 1945 280 32 Normal
04234000 Fall Creek at Ithaca 1925 442 7 Excessive
04235250 Flint Creek at Phelps 1960-95,2002 111 39 Normal
04243500 Oneida Creek at Oneida 1950 371 14 Excessive
04250750 Sandy Creek near Adams 1958-95,2002 e450 39 Normal
04256000 Independence River at Donnattsburg 1942 e200 50 Normal
04262500 W Br Oswegatchie R nr Harrisville 1916 606 38 Normal
04270200 Little Salmon River at Bombay 1958-95,2002 e190 15 Excessive
04275500 Ausable River at Au Sable Forks 1910-68,1990 e570 36 Normal
** 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 December 2007
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 12/31 8.42 14 Excessive
Allegany Ag-261 2002 12/31 4.88 25 Normal
Allegany Ag-262 2002 12/31 0.04 68 Normal
Broome Bm-128 1980 12/31 24.97 55 Normal
Broome Bm-129 1985 12/31 68.22 64 Normal
Cattaraugus Ct-121 1951 12/31 6.50 47 Normal
Cayuga Cy-7 1965 12/31 16.74 24 Excessive
Cayuga Cy-223 2005 -- -- - --
Chautauqua Cu-10 1939 12/31 18.59 15 Excessive
Chemung Cm-622 2002 12/31 22.53 10 Excessive
Chenango Cn-12 1975 12/31 7.20 8 Excessive
Clinton Cl-145 1992 12/31 22.29 21 Excessive
Clinton Cl-242 2006 -- -- - --
Columbia Cb-1071 2004 -- -- - --
Columbia Cb-1072 2006 -- -- - --
Cortland C-586 2008 -- -- - --
Cortland C-998 2002 12/31 3.87 3 Excessive
Delaware D-503 2002 12/31 3.48 8 Excessive
Dutchess Du-321 1948 12/31 69.18 36 Normal
Dutchess Du-1009 1967 12/31 12.80 15 Excessive
Erie E-1196 2004 12/31 11.53 - --
Essex Ex-150 2002 12/31 20.19 85 Deficient
Essex Ex-157 2006 -- -- - --
Franklin F-60 2005 12/31 2.69 - --
Franklin F-854 2005 12/31 29.62 - --
Fulton Fu-271 2002 12/31 16.79 100 Deficient
Genesee Gs-190 1998 12/31 31.42 57 Normal
Greene G-644 2003 12/21 16.65 - --
Greene G-831 2006 12/20 6.55 - --
Hamilton H-3 1966 12/31 12.80 72 Normal
Herkimer He-627 2004 -- -- - --
Jefferson J-176 2005 -- -- - --
Lewis L-174 2002 12/31 23.60 59 Normal
Livingston Lv-330 2004 -- -- - --
Madison M-178 1975 12/31 5.26 6 Excessive
Monroe Mo-11 1984 12/31 8.00 35 Normal
Montgomery Mt-411 2004 -- -- - --
Niagara Ni-70 1973 12/31 6.38 80 Deficient
Niagara Ni-869 2003 12/31 0.36 - --
Oneida Oe-151 1926 12/31 23.90 49 Normal
Oneida Oe-1457 2003 12/31 43.47 - --
Onondaga Od-1825 2004 -- -- - --
Onondaga Od-1833 2004 -- -- - --
Ontario **Ot-900 1955 -- -- - --
Ontario Ot-1133 2002 12/31 2.78 58 Normal
Orange O-2271 2002 12/31 5.92 20 Excessive
Orange O-2288 2007 12/12 5.44 - --
Orleans Ol-20 2004 12/31 21.35 - --
Oswego Ow-5013 2002 12/31 22.31 63 Normal
Oswego Ow-5014 2002 12/31 22.52 28 Normal
Otsego Og-23 1953 12/31 5.09 22 Excessive
Putnam P-1205 2007 12/19 2.87 - --
Putnam P-1217 2005 12/31 12.43 - --
Rensselaer Re-703 1983 12/31 37.53 27 Normal
Rockland Ro-18 1949 12/31 22.77 72 Normal
Rockland Ro-543 2005 12/31 6.09 - --
St. Lawrence St-40 1953 12/31 5.77 27 Normal
St. Lawrence St-404 1958 12/31 13.69 44 Normal
Saratoga Sa-529 1949 12/31 40.21 0 Excessive
Saratoga Sa-1285 2002 12/31 1.97 46 Normal
Schenectady Sn-730 2004 12/31 6.21 - --
Schoharie So-602 2005 -- -- - --
Schoharie So-604 2006 -- -- - --
Schuyler Sy-706 2003 12/31 4.67 - --
Seneca Se-532 2005 12/31 0.27 - --
Seneca Se-533 2005 12/31 -0.61 - --
Steuben Sb-472 1965 12/31 7.05 13 Excessive
Suffolk *S1810 1976 12/21 50.15 47 Normal
Suffolk *S1812 1982 12/18 47.21 27 Normal
Suffolk *S4271 1946 12/31 11.68 17 Excessive
Suffolk *S5517 1948 12/31 42.19 36 Normal
Suffolk *S8833 1951 12/31 15.89 54 Normal
Sullivan Sv-535 2001 12/31 6.18 0 Excessive
Tioga Ti-891 2003 -- -- - --
Tompkins Tm-985 2005 12/14 2.58 - --
Tompkins Tm-1968 2005 -- -- - --
Ulster U-1619 2002 12/31 18.11 47 Normal
Ulster U-1620 2005 12/18 26.18 - --
Warren Wr-80 2005 -- -- - --
Warren Wr-84 2008 -- -- - --
Washington W-533 1974 12/31 5.52 13 Excessive
Wayne Wn-592 2004 -- -- - --
Westchester We-5020 2003 12/31 17.03 - --
Wyoming Wo-4 1974 12/31 11.90 10 Excessive
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 3,032 3,871 2,888
01323500 Great Sacandaga Lake at Conklinville 19,510 33,810 19,520
04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft
above sea level
December 31, 2007 96.84 December 31, 2006 97.41
Average (1939-2006) 95.57
Maximum daily 100.02 (1984) Minimum daily 93.25 (1954)
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.
