U.S. GEOLOGICAL SURVEY
WATER-RESOURCES CONDITIONS IN NEW YORK
MAY 2006
U.S. GEOLOGICAL SURVEY, WRD
New York District, Troy, NY
WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT
FOR MAY 2006
Prepared June 1, 2006
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 May. Streamflow at
Oquaga Creek at Deposit, Sandy Creek near Adams, and West Branch Oswegatchie River near
Harrisville remained in the deficient range for the second consecutive month. All other
sites were in the normal range.
The total New York City reservoir system was at 98.8 percent of capacity on May 31;
normal for this period is 100.0 percent of capacity.
Ithaca--Summary Report
Provisional streamflow conditions at sites monitored and included in this report
for western New York were in the normal to deficient range during April. Streamflow at
Susquehanna River at Conklin, Chenango River near Chenango Forks, Chemung River at Chemung,
Allegheny River at Salamanca, Genesee River at Wellsville, Fall Creek near Ithaca, and
Flint Creek at Phelps continued to be in the deficient range for the third consecutive
month. Streamflow at Cattaraugus Creek at Gowanda, Tonawanda Creek at Batavia, Oatka Creek
at Garbutt continued to be in the deficient range for the second consecutive month. The
lowest provisional period-of-record (60 years) minimum monthly mean discharge for May was
recorded at Oatka Creek at Garbutt. Unadilla River at Rockdale and Oneida Creek at Oneida
were in the normal range for the month.
Coram--Summary Report
Mean flow at Connetquot Brook near Central Islip was in the normal range for the third
consecutive month after being in the excessive range for five consecutive months.
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Provisional Data for May 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 37.3 26 Normal
01312000 Hudson River at Newcomb 1925-87,2002 793 54 Normal
01318500 Hudson River at Hadley 1921 5,210 43 Normal
01321000 Sacandaga River nr Hope 1911 1,810 39 Normal
01334500 Hoosic River near Eagle Bridge 1910 1,210 45 Normal
01349150 Canajoharie Creek near Canajoharie 1993 63.5 51 Normal
01350000 Schoharie Creek at Prattsville 1902 741 28 Normal
01357500 Mohawk River at Cohoes 1917 5,570 56 Normal
01371500 Wallkill River at Gardiner 1924 943 53 Normal
01372500 Wappinger Cr nr Wappingers Falls 1928 320 43 Normal
01387400 Ramapo River at Ramapo 1979 180 39 Normal
01413500 E Br Delaware River at Margaretville 1937 299 65 Normal
01420500 Beaver Kill at Cooks Falls 1913 547 61 Normal
01423000 W Br Delaware River at Walton 1950 453 67 Normal
01426000 Oquaga Creek at Deposit **1941-73,2002 72.0 79 Deficient
01502500 Unadilla River at Rockdale 1930-95,2001 621 70 Normal
01503000 Susquehanna River at Conklin 1912 2,500 77 Deficient
01512500 Chenango River nr Chenango Forks 1912 1,540 78 Deficient
01531000 Chemung River at Chemung 1903 1,700 77 Deficient
03011020 Allegheny River at Salamanca 1903 1,490 90 Deficient
04213500 Cattaraugus Creek at Gowanda 1940-98,2000 315 94 Deficient
04217000 Tonawanda Creek at Batavia 1944 72.7 94 Deficient
04221000* Genesee River at Wellsville 1916 214 82 Deficient
04230500 Oatka Creek at Garbutt 1945 98.8 100 Deficient
04234000 Fall Creek at Ithaca 1925 92.4 88 Deficient
04235250 Flint Creek at Phelps 1960-95,2002 50.8 86 Deficient
04243500 Oneida Creek at Oneida 1950 98.6 75 Normal
04250750 Sandy Creek near Adams 1958-95,2002 91.7 97 Deficient
04256000 Independence River at Donnattsburg 1942 165 75 Normal
04262500 W Br Oswegatchie R nr Harrisville 1916 450 79 Deficient
04270200 Little Salmon River at Bombay 1958-95,2002 122 47 Normal
04275500 Ausable River at Au Sable Forks 1910-68,1990 1,530 29 Normal
** 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 May 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 05/30 6.18 9 Excessive
Allegany Ag-261 2002 05/30 5.72 - --
Allegany Ag-262 2002 05/30 -0.41 - --
Broome Bm-128 1980 05/30 24.81 94 Deficient
Broome Bm-129 1985 05/31 67.91 79 Deficient
Cattaraugus Ct-121 1951 05/31 6.91 91 Deficient
Cayuga Cy-223 2005 05/30 14.21 - --
Chautauqua Cu-10 1939 05/16 23.01 65 Normal
Chemung Cm-622 2002 05/31 23.53 56 Normal
Chenango Cn-12 1975 05/30 8.93 52 Normal
Clinton Cl-145 1992 05/31 22.53 37 Normal
Clinton Cl-242 2006 05/18 2.11 - --
Columbia Cb-1071 2004 -- -- - --
Cb-1072 2006 -- -- - --
Cortland C-998 2002 05/30 5.03 - --
Delaware D-503 2002 05/31 5.45 - --
Dutchess Du-321 1948 05/31 67.74 28 Normal
Dutchess Du-1009 1967 05/31 13.68 57 Normal
Erie E-1196 2004 05/31 12.75 - --
Essex Ex-150 2002 05/31 15.97 - --
Franklin F-60 2005 05/31 3.80 - --
Franklin F-854 2005 05/31 30.53 - --
Fulton Fu-271 2002 06/02 13.92 - --
Genesee Gs-190 2002 05/30 28.30 - --
Greene G-644 2003 -- -- - --
G-831 2006 -- -- - --
Hamilton H-3 1966 05/31 11.89 42 Normal
Herkimer He-627 2004 -- -- - --
Jefferson J-176 2005 -- -- - --
Lewis L-174 2002 -- -- - --
Livingston Lv-330 2004 05/30 10.55 - --
Madison M-178 1975 05/31 8.78 96 Deficient
Monroe Mo-11 1984 05/30 8.28 80 Deficient
Montgomery Mt-411 2004 -- -- - --
Niagara Ni-70 1973 05/31 4.58 91 Deficient
Niagara Ni-869 2003 05/31 1.90 - --
Oneida Oe-151 1926 05/31 22.22 98 Deficient
Oneida Oe-1457 2003 05/31 43.12 - --
Onondaga Od-1825 2004 05/30 12.68 - --
Onondaga Od-1833 2004 05/30 14.09 - --
Ontario **Ot-900 1955 05/30 7.80 88 Deficient
Ontario Ot-1133 2002 05/30 2.96 - --
Orange O-2271 2002 05/31 6.34 - --
Orleans Ol-20 2004 05/31 20.42 - --
Oswego Ow-5013 2002 05/31 23.10 - --
Oswego Ow-5014 2002 05/31 23.56 - --
Otsego Og-23 1953 05/30 7.24 91 Deficient
Putnam P-1217 2005 05/15 13.04 - --
Rensselaer Re-703 1983 05/31 35.64 15 Excessive
Rockland Ro-18 1949 05/31 16.92 80 Deficient
Rockland Ro-543 2005 05/31 7.36 - --
St. Lawrence St-40 1953 05/31 5.30 52 Normal
St. Lawrence St-404 1958 05/31 14.17 100 Deficient
Saratoga Sa-1285 2002 05/26 0.63 - --
Schenectady Sn-730 2004 05/30 4.92 - --
Schoharie So-602 2005 -- -- - --
Schuyler Sy-706 2003 05/30 8.86 - --
Seneca Se-532 2005 05/30 0.80 - --
Se-533 2005 05/30 0.69 - --
Steuben Sb-472 1965 05/30 9.38 94 Deficient
Suffolk *S1810 1976 05/22 53.41 25 Normal
Suffolk *S1812 1982 05/23 50.77 0 Excessive
Suffolk *S4271 1946 05/25 13.64 0 Excessive
Suffolk *S5517 1948 05/30 45.12 24 Excessive
Suffolk *S8833 1951 05/31 18.22 22 Excessive
Sullivan Sv-535 2001 05/31 8.04 - --
Tioga Ti-891 2003 05/31 18.01 - --
Tompkins Tm-985 2005 05/30 3.97 - --
Tm-1968 2005 05/30 16.91 - --
Ulster U-1619 2002 05/31 16.25 33 Normal
U-1620 2005 05/23 27.25 - --
Warren Wr-80 2005 05/24 16.04 - --
Washington W-533 1974 05/26 5.70 20 Excessive
Wayne Wn-592 2004 05/30 9.03 - --
Westchester We-5020 2003 05/17 11.72 - --
Wyoming Wo-4 1974 05/31 13.23 96 Deficient
Yates Ya-180 2004 05/30 3.86 - --
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 4,614 4,612 4,596
01323500 Great Sacandaga Lake at Conklinville 36,120 34,400 33,620
04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft
above sea level
May 31, 2006 98.82 May 31, 2005 97.33
Average (1939-2004) 98.31
Maximum daily 101.55 (1993) Minimum daily 94.91 (1965)
Provisional Data for May 2006#
INDEX STREAMFLOW STATIONS
(Reference period 1971-2000)
## Reference period is 1978-2000
* Deficient
# Note: Flow statistics based on data collected through May 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.
