U.S. GEOLOGICAL SURVEY
WATER-RESOURCES CONDITIONS IN NEW YORK
OCTOBER 2006
U.S. GEOLOGICAL SURVEY, WRD
New York District, Troy, NY
WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT
FOR OCTOBER 2006
Prepared November 1, 2006
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 October. Streamflow at Schoharie Creek
at Prattsville, East Branch Delaware River at Margaretville, West Branch Delaware River at
Walton, and Oquaga Creek at Deposit remained in the excessive range for the fifth
consecutive month. The maximum monthly mean discharge for October for the period of record
was recorded at two sites included in this report: Oquaga Creek at Deposit (36 years) and
Sandy Creek near Adams (41 years).
The total New York City reservoir system was at 97.6 percent of capacity on October 31;
normal for this period is 69.0 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 October. Streamflow at
Susquehanna River at Conklin, Unadilla River at Rockdale, Chenango River near Chenango
Forks, Chemung River at Chemung, Fall Creek near Ithaca, and Oneida Creek at Oneida
continued to be in the excessive range for the fifth consecutive month. Streamflow at
Allegheny River at Salamanca, Cattaraugus Creek at Gowanda, Tonawanda Creek at Batavia,
Genesee River at Wellsville, and Flint Creek at Phelps continued to be in the excessive
range for the fourth consecutive month. Streamflow at Oatka Creek at Garbutt continued
to be in the excessive range for the second consecutive month. The maximum monthly mean
discharge for October for the period of record was recorded at Allegheny River at
Salamanca (103 years), Cattaraugus Creek at Gowanda (64 years), and Tonawanda Creek at
Batavia (62 years).
Coram--Summary Report
Mean flow at Connetquot Brook near Central Islip was in the excessive range after being
in the normal range for seven months.
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Provisional Data for October 2006
MEAN FLOW FOR SELECTED GAGING STATIONS
Period
of record Flow Percent
Station (to date) (cfs) Exceedence Conditions
01306460 Connetquot Brook nr Central Islip 1978 32.9 14 Excessive
01312000 Hudson River at Newcomb 1925-87,2002 779 6 Excessive
01318500 Hudson River at Hadley 1921 4,580 6 Excessive
01321000 Sacandaga River nr Hope 1911 2,370 2 Excessive
01334500 Hoosic River near Eagle Bridge 1910 1,040 10 Excessive
01349150 Canajoharie Creek near Canajoharie 1993 128 8 Excessive
01350000 Schoharie Creek at Prattsville 1902 740 12 Excessive
01357500 Mohawk River at Cohoes 1917 9,920 4 Excessive
01371500 Wallkill River at Gardiner 1924 1,320 10 Excessive
01372500 Wappinger Cr nr Wappingers Falls 1928 202 23 Excessive
01387400 Ramapo River at Ramapo 1979 207 15 Excessive
01413500 E Br Delaware River at Margaretville 1937 409 11 Excessive
01420500 Beaver Kill at Cooks Falls 1913 895 10 Excessive
01423000 W Br Delaware River at Walton 1950 985 9 Excessive
01426000 Oquaga Creek at Deposit **1941-73,2002 286 0 Excessive
01502500 Unadilla River at Rockdale 1930-95,2001 1,320 7 Excessive
01503000 Susquehanna River at Conklin 1912 4,810 8 Excessive
01512500 Chenango River nr Chenango Forks 1912 3,850 6 Excessive
01531000 Chemung River at Chemung 1903 3,810 6 Excessive
03011020 Allegheny River at Salamanca 1903 6,840 0 Excessive
04213500 Cattaraugus Creek at Gowanda 1940-98,2000 1,740 0 Excessive
04217000 Tonawanda Creek at Batavia 1944 447 0 Excessive
04221000* Genesee River at Wellsville 1916 645 6 Excessive
04230500 Oatka Creek at Garbutt 1945 295 4 Excessive
04234000 Fall Creek at Ithaca 1925 209 12 Excessive
04235250 Flint Creek at Phelps 1960-95,2002 198 3 Excessive
04243500 Oneida Creek at Oneida 1950 336 4 Excessive
04250750 Sandy Creek near Adams 1958-95,2002 612 0 Excessive
04256000 Independence River at Donnattsburg 1942 363 7 Excessive
04262500 W Br Oswegatchie R nr Harrisville 1916 818 8 Excessive
04270200 Little Salmon River at Bombay 1958-95,2002 130 10 Excessive
04275500 Ausable River at Au Sable Forks 1910-68,1990 1,180 5 Excessive
** 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 October 2006
INDEX OBSERVATION WELLS
The observation-well network generally reflects conditions in water-table sand and gravel aquifers and does
not necessarily reflect conditions in confined and bedrock aquifers. 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 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.
Record Percent
County Well No. begins Date Water Level Exceedence Conditions
Albany A-654 2002 10/31 6.80 1 Excessive
Allegany Ag-261 2002 10/26 5.01 - --
Allegany Ag-262 2002 10/31 -1.03 - --
Broome Bm-128 1980 10/31 22.81 0 Excessive
Broome Bm-129 1985 10/31 67.23 22 Excessive
Cattaraugus Ct-121 1951 10/31 4.80 5 Excessive
Cayuga Cy-223 2005 10/30 13.00 - --
Chautauqua Cu-10 1939 10/31 24.38 14 Excessive
Chemung Cm-622 2002 10/31 22.97 5 Excessive
Chenango Cn-12 1975 10/25 6.82 7 Excessive
Clinton Cl-145 1992 10/31 22.78 25 Normal
Clinton Cl-242 2006 10/30 1.78 - --
Columbia Cb-1071 2004 10/12 9.86 - --
Columbia Cb-1072 2006 10/12 9.34 - --
Cortland C-998 2002 10/26 4.48 - --
Delaware D-503 2002 10/31 4.22 - --
Dutchess Du-321 1948 10/31 68.55 17 Excessive
Dutchess Du-1009 1967 10/31 14.56 31 Normal
Erie E-1196 2004 10/31 10.01 - --
Essex Ex-150 2002 10/31 15.75 - --
Essex Ex-157 2006 10/31 17.28 - --
Franklin F-60 2005 10/31 3.07 - --
Franklin F-854 2005 10/31 32.97 - --
Fulton Fu-271 2002 10/31 14.72 - --
Genesee Gs-190 2002 10/31 31.18 - --
Greene G-644 2003 -- -- - --
Greene G-831 2006 -- -- - --
Hamilton H-3 1966 10/31 10.59 4 Excessive
Herkimer He-627 2004 -- -- - --
Jefferson J-176 2005 10/17 2.85 - --
Lewis L-174 2002 10/31 23.80 - --
Livingston Lv-330 2004 10/27 11.39 - --
Madison M-178 1975 10/31 5.27 2 Excessive
Monroe Mo-11 1984 10/27 7.95 36 Normal
Montgomery Mt-411 2004 -- -- - --
Niagara Ni-70 1973 10/31 1.72 0 Excessive
Niagara Ni-869 2003 10/31 -0.06 - --
Oneida Oe-151 1926 10/31 21.34 2 Excessive
Oneida Oe-1457 2003 10/31 43.01 - --
Onondaga Od-1825 2004 10/30 10.56 - --
Onondaga Od-1833 2004 10/30 12.22 - --
Ontario **Ot-900 1955 10/27 7.31 37 Normal
Ontario Ot-1133 2002 10/31 2.63 - --
Orange O-2271 2002 10/31 5.87 - --
Orleans Ol-20 2004 10/31 18.98 - --
Oswego Ow-5013 2002 10/31 21.31 - --
Oswego Ow-5014 2002 10/31 22.00 - --
Otsego Og-23 1953 10/25 5.33 13 Excessive
Putnam P-1217 2005 10/31 12.99 - --
Rensselaer Re-703 1983 10/31 36.34 5 Excessive
Rockland Ro-18 1949 10/31 22.54 44 Normal
Rockland Ro-543 2005 10/31 5.92 - --
St. Lawrence St-40 1953 10/31 6.56 17 Excessive
St. Lawrence St-404 1958 10/31 14.64 38 Normal
Saratoga Sa-529 1949 10/31 40.54 0 Excessive
Saratoga Sa-1285 2002 10/31 1.41 - --
Schenectady Sn-730 2004 10/10 6.11 - --
Schoharie So-602 2005 -- -- - --
Schoharie So-604 2006 -- -- - --
Schuyler Sy-706 2003 10/27 5.88 - --
Seneca Se-532 2005 10/27 0.22 - --
Seneca Se-533 2005 10/27 -0.47 - --
Steuben Sb-472 1965 10/31 6.64 2 Excessive
Suffolk *S1810 1976 10/23 52.17 23 Excessive
Suffolk *S1812 1982 10/26 49.07 5 Excessive
Suffolk *S4271 1946 10/31 13.29 3 Excessive
Suffolk *S5517 1948 10/31 43.92 6 Excessive
Suffolk *S8833 1951 10/31 18.46 0 Excessive
Sullivan Sv-535 2001 10/31 6.80 0 Excessive
Tioga Ti-891 2003 10/30 17.06 - --
Tompkins Tm-985 2005 10/27 3.41 - --
Tompkins Tm-1968 2005 10/27 16.96 - --
Ulster U-1619 2002 10/31 16.54 3 Excessive
Ulster U-1620 2005 -- -- - --
Warren Wr-80 2005 -- -- - --
Washington W-533 1974 10/31 6.57 22 Excessive
Wayne Wn-592 2004 10/27 8.64 - --
Westchester We-5020 2003 10/31 13.78 - --
Wyoming Wo-4 1974 10/31 10.48 0 Excessive
Yates Ya-180 2004 10/27 3.35 - --
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 4,372 4,180 2,721
01323500 Great Sacandaga Lake at Conklinville 34,140 32,870 20,620
04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft
above sea level
October 31, 2006 97.60 October 31, 2005 98.71
Average (1939-2005) 94.86
Maximum daily 99.04 (1978) Minimum daily 92.90 (1942)
Provisional Data for October 2006#
INDEX STREAMFLOW STATIONS
(Reference period 1971-2000)
## Reference period is 1978-2000
** Excessive
# Note: Flow statistics based on data collected through October 31, 2006.
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.
Statistics for the "Index Streamflow Stations" table are for the 30-year reference period
1971-2000. All other statistics used in report are based on the period of record at the site.
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.
