U.S. GEOLOGICAL SURVEY
WATER-RESOURCES CONDITIONS IN NEW YORK
AUGUST 2007
U.S. GEOLOGICAL SURVEY, WRD
New York District, Troy, NY
WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT
FOR AUGUST 2007
Prepared September 4, 2007
Troy--Summary Report
Provisional streamflow conditions at all sites monitored and included in this report in
eastern New York were in the normal to deficient range during August. Streamflow at Sacandaga
River at Hope was in the deficient range for the third consecutive month. Streamflow at Hudson
River near Newcomb, Hudson River at Hadley, Mohawk River at Cohoes, Sandy Creek near Adams,
Independence River at Donnattsburg, West Branch Oswegatchie River near Harrisville, Little
Salmon River at Bombay, and Ausable River at Au Sable Forks decreased into the deficient range
after being in either the normal or excessive range last month. All other sites were in the
normal range for the month.
The total New York City reservoir system was at 77.8 percent of capacity on August 31;
normal for this period is 81.2 percent of capacity.
Ithaca--Summary Report
Provisional streamflow conditions at sites monitored and included in this report
for western New York were in the normal to deficient range during August. Streamflow at
Susquehanna River at Conklin, Chenango River near Chenango Forks, Chemung River at Chemung,
Fall Creek near Ithaca, and Oneida Creek at Oneida was in the normal range for the second
consecutive month. Streamflow at Unadilla River at Rockdale was in the normal range for the
third consecutive month. Streamflow at Cattaraugus Creek at Gowanda, Tonawanda Creek at
Batavia, Oatka Creek at Garbutt, and Flint Creek at Phelps was in the deficient range after
being in the normal range last month. Streamflow at Allegheny River at Salamanca was in the
excessive range after being in the deficient range last month. Streamflow at Genesee River
at Wellsville was in the normal range after being in the deficient range last 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 August 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 17.8 71 Normal
01312000 Hudson River at Newcomb 1925-87,2002 49.0 95 Deficient
01318500 Hudson River at Hadley 1921 502 95 Deficient
01321000 Sacandaga River nr Hope 1911 58.1 97 Deficient
01334500 Hoosic River near Eagle Bridge 1910 239 51 Normal
01349150 Canajoharie Creek near Canajoharie 1993 4.55 47 Normal
01350000 Schoharie Creek at Prattsville 1902 78.5 37 Normal
01357500 Mohawk River at Cohoes 1917 1,180 76 Deficient
01371500 Wallkill River at Gardiner 1924 341 34 Normal
01372500 Wappinger Cr nr Wappingers Falls 1928 55.2 31 Normal
01387400 Ramapo River at Ramapo 1979 35.8 45 Normal
01413500 E Br Delaware River at Margaretville 1937 80.9 31 Normal
01420500 Beaver Kill at Cooks Falls 1913 182 41 Normal
01423000 W Br Delaware River at Walton 1950 160 29 Normal
01426000 Oquaga Creek at Deposit **1941-73,2002 11.6 64 Normal
01502500 Unadilla River at Rockdale 1930-95,2001 169 43 Normal
01503000 Susquehanna River at Conklin 1912 673 52 Normal
01512500 Chenango River nr Chenango Forks 1912 425 53 Normal
01531000 Chemung River at Chemung 1903 308 62 Normal
03011020 Allegheny River at Salamanca 1903 821 24 Excessive
04213500 Cattaraugus Creek at Gowanda 1940-98,2000 122 85 Deficient
04217000 Tonawanda Creek at Batavia 1944 13.2 83 Deficient
04221000* Genesee River at Wellsville 1916 48.5 57 Normal
04230500 Oatka Creek at Garbutt 1945 35.3 76 Deficient
04234000 Fall Creek at Ithaca 1925 45.0 34 Normal
04235250 Flint Creek at Phelps 1960-95,2002 2.59 80 Deficient
04243500 Oneida Creek at Oneida 1950 34.9 61 Normal
04250750 Sandy Creek near Adams 1958-95,2002 9.11 92 Deficient
04256000 Independence River at Donnattsburg 1942 25.7 99 Deficient
04262500 W Br Oswegatchie R nr Harrisville 1916 73.6 89 Deficient
04270200 Little Salmon River at Bombay 1958-95,2002 26.9 85 Deficient
04275500 Ausable River at Au Sable Forks 1910-68,1990 181 83 Deficient
** Statistics used based on record for 1941-1973 water years
* Includes 04221500-Genesee River at Scio (1916-72)
MONTHLY MEAN DISCHARGE FOR SELECTED STREAMFLOW STATIONS
Provisional Data for August 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 08/31 9.05 11 Excessive
Allegany Ag-261 2002 08/31 6.64 - --
Allegany Ag-262 2002 08/31 0.82 - --
Broome Bm-128 1980 08/31 26.89 53 Normal
Broome Bm-129 1985 08/31 68.72 42 Normal
Cattaraugus Ct-121 1951 08/31 9.53 70 Normal
Cayuga Cy-7 1965 08/31 22.56 72 Normal
Cayuga Cy-223 2005 -- -- - --
Chautauqua Cu-10 1939 08/31 26.11 14 Excessive
Chemung Cm-622 2002 08/31 24.94 72 Normal
Chenango Cn-12 1975 08/31 9.72 29 Normal
Clinton Cl-145 1992 08/31 23.08 37 Normal
Clinton Cl-242 2006 08/01 1.86 - --
Columbia Cb-1071 2004 08/06 11.89 - --
Columbia Cb-1072 2006 08/06 9.34 - --
Cortland C-998 2002 08/31 5.81 - --
Delaware D-503 2002 08/31 7.38 - --
Dutchess Du-321 1948 08/31 68.88 35 Normal
Dutchess Du-1009 1967 08/31 16.39 46 Normal
Erie E-1196 2004 08/31 13.99 - --
Essex Ex-150 2002 08/31 25.83 - --
Essex Ex-157 2006 08/21 18.56 - --
Franklin F-60 2005 08/31 4.40 - --
Franklin F-854 2005 08/31 31.23 - --
Fulton Fu-271 2002 08/31 15.26 - --
Genesee Gs-190 1998 08/31 29.84 44 Normal
Greene G-644 2003 08/29 20.78 - --
Greene G-831 2006 08/16 7.88 - --
Hamilton H-3 1966 08/31 14.80 76 Deficient
Herkimer He-627 2004 08/02 28.01 - --
Jefferson J-176 2005 -- -- - --
Lewis L-174 2002 08/31 23.59 - --
Livingston Lv-330 2004 -- -- - --
Madison M-178 1975 08/31 10.05 80 Deficient
Monroe Mo-11 1984 08/31 8.20 47 Normal
Montgomery Mt-411 2004 08/01 34.42 - --
Niagara Ni-70 1973 08/31 8.84 92 Deficient
Niagara Ni-869 2003 08/31 6.74 - --
Oneida Oe-151 1926 08/31 26.59 95 Deficient
Oneida Oe-1457 2003 08/31 42.06 - --
Onondaga Od-1825 2004 -- -- - --
Onondaga Od-1833 2004 -- -- - --
Ontario **Ot-900 1955 -- -- - --
Ontario Ot-1133 2002 -- -- - --
Orange O-2271 2002 08/31 6.79 - --
Orange O-2288 2007 08/30 6.63 - --
Orleans Ol-20 2004 08/31 20.99 - --
Oswego Ow-5013 2002 08/31 24.12 - --
Oswego Ow-5014 2002 08/31 24.23 - --
Otsego Og-23 1953 08/31 9.08 66 Normal
Putnam P-1205 2007 08/30 3.45 - --
Putnam P-1217 2005 08/31 15.30 - --
Rensselaer Re-703 1983 08/31 36.66 22 Excessive
Rockland Ro-18 1949 08/31 25.02 98 Deficient
Rockland Ro-543 2005 08/31 8.69 - --
St. Lawrence St-40 1953 08/31 7.35 44 Normal
St. Lawrence St-404 1958 08/31 15.54 85 Deficient
Saratoga Sa-529 1949 08/31 41.35 0 Excessive
Saratoga Sa-1285 2002 08/31 4.80 - --
Schenectady Sn-730 2004 08/22 8.20 - --
Schoharie So-602 2005 08/29 28.37 - --
Schoharie So-604 2006 08/29 9.56 - --
Schuyler Sy-706 2003 -- -- - --
Seneca Se-532 2005 08/31 3.14 - --
Seneca Se-533 2005 08/31 4.01 - --
Steuben Sb-472 1965 08/31 9.91 38 Normal
Suffolk *S1810 1976 -- -- - --
Suffolk *S1812 1982 -- -- - --
Suffolk *S4271 1946 08/31 12.56 5 Excessive
Suffolk *S5517 1948 08/31 44.33 31 Normal
Suffolk *S8833 1951 08/31 17.71 16 Excessive
Sullivan Sv-535 2001 08/31 9.99 25 Normal
Tioga Ti-891 2003 -- -- - --
Tompkins Tm-985 2005 08/31 4.97 - --
Tompkins Tm-1968 2005 -- -- - --
Ulster U-1619 2002 08/31 17.50 52 Normal
Ulster U-1620 2005 08/31 28.91 - --
Warren Wr-80 2005 08/03 18.58 - --
Washington W-533 1974 08/31 7.60 90 Deficient
Wayne Wn-592 2004 -- -- - --
Westchester We-5020 2003 08/31 14.98 - --
Wyoming Wo-4 1974 08/31 13.80 100 Deficient
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 3,751 3,804 3,412
01323500 Great Sacandaga Lake at Conklinville 24,240 29,180 25,070
04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft
above sea level
August 31, 2007 95.43 August 31, 2006 96.68
Average (1939-2005) 95.27
Maximum daily 98.31 (1976) Minimum daily 93.39 (1949)
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.
