U.S. GEOLOGICAL SURVEY
WATER-RESOURCES CONDITIONS IN NEW YORK
MARCH 2007
U.S. GEOLOGICAL SURVEY, WRD
New York District, Troy, NY
WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT
FOR MARCH 2007
Prepared April 3, 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 excessive range. Streamflow at all sites reported
increased from February to March. Adjustments were made to flows due to ice affect, except
at a few sites, and seven sites were not included in this report due to extreme ice
conditions.
The total New York City reservoir system was at 100.3 percent of capacity on March 30;
normal for this period is 94.4 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 March. Streamflow at Chemung
River at Chemung and Cattaraugus Creek at Gowanda was in the excessive range after
being in the normal range last month. Streamflow at Susquehanna River at Conklin,
Unadilla River at Rockdale, Chenango River near Chenango Forks, Allegheny River at
Salamanca, Tonawanda Creek at Batavia, Genesee River at Wellsville, Oatka Creek at
Garbutt, Fall Creek near Ithaca, Flint Creek at Phelps, and Oneida Creek at Oneida
were all in the excessive range after being in the deficient range last month.
Coram--Summary Report
Mean flow at Connetquot Brook near Central Islip was in the excessive range for the
sixth consecutive month.
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Provisional Data for March 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 42.3 4 Excessive
01312000 Hudson River at Newcomb 1925-87,2002 395 32 Normal
01318500 Hudson River at Hadley 1921 e3,100 50 Normal
01321000 Sacandaga River nr Hope 1911 e2,900 14 Excessive
01334500 Hoosic River near Eagle Bridge 1910 e2,000 23 Excessive
01349150 Canajoharie Creek near Canajoharie 1993 excessive ice cover
01350000 Schoharie Creek at Prattsville 1902 excessive ice cover
01357500 Mohawk River at Cohoes 1917 17,600 10 Excessive
01371500 Wallkill River at Gardiner 1924 excessive ice cover
01372500 Wappinger Cr nr Wappingers Falls 1928 735 17 Excessive
01387400 Ramapo River at Ramapo 1979 317 31 Normal
01413500 E Br Delaware River at Margaretville 1937 761 14 Excessive
01420500 Beaver Kill at Cooks Falls 1913 e1,100 29 Normal
01423000 W Br Delaware River at Walton 1950 1,820 9 Excessive
01426000 Oquaga Creek at Deposit **1941-73,2002 unavailable
01502500 Unadilla River at Rockdale 1930-95,2001 2,940 11 Excessive
01503000 Susquehanna River at Conklin 1912 e11,400 11 Excessive
01512500 Chenango River nr Chenango Forks 1912 7,410 18 Excessive
01531000 Chemung River at Chemung 1903 9,370 15 Excessive
03011020 Allegheny River at Salamanca 1903 8,440 18 Excessive
04213500 Cattaraugus Creek at Gowanda 1940-98,2000 2,420 8 Excessive
04217000 Tonawanda Creek at Batavia 1944 879 4 Excessive
04221000* Genesee River at Wellsville 1916 1,250 13 Excessive
04230500 Oatka Creek at Garbutt 1945 752 18 Excessive
04234000 Fall Creek at Ithaca 1925 e580 12 Excessive
04235250 Flint Creek at Phelps 1960-95,2002 430 6 Excessive
04243500 Oneida Creek at Oneida 1950 736 3 Excessive
04250750 Sandy Creek near Adams 1958-95,2002 e840 13 Excessive
04256000 Independence River at Donnattsburg 1942 excessive ice cover
04262500 W Br Oswegatchie R nr Harrisville 1916 1,090 27 Normal
04270200 Little Salmon River at Bombay 1958-95,2002 excessive ice cover
04275500 Ausable River at Au Sable Forks 1910-68,1990 excessive ice cover
** 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 March 2007
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 (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 03/21 7.52 7 Excessive
Allegany Ag-261 2002 03/31 4.64 - --
Allegany Ag-262 2002 03/31 -0.41 - --
Broome Bm-128 1980 03/31 22.86 14 Excessive
Broome Bm-129 1985 03/31 67.28 32 Normal
Cattaraugus Ct-121 1951 03/31 5.19 36 Normal
Cayuga Cy-223 2005 -- -- - --
Chautauqua Cu-10 1939 03/31 41.31 99 Deficient
Chemung Cm-622 2002 03/31 22.20 12 Excessive
Chenango Cn-12 1975 03/31 3.58 1 Excessive
Clinton Cl-145 1992 03/31 22.08 16 Excessive
Clinton Cl-242 2006 -- -- - --
Columbia Cb-1071 2004 -- -- - --
Columbia Cb-1072 2006 -- -- - --
Cortland C-998 2002 03/31 3.55 - --
Delaware D-503 2002 03/31 2.91 - --
Dutchess Du-321 1948 03/31 67.75 22 Excessive
Dutchess Du-1009 1967 03/31 12.97 32 Normal
Erie E-1196 2004 03/31 10.60 - --
Essex Ex-150 2002 03/31 13.99 - --
Essex Ex-157 2006 -- -- - --
Franklin F-60 2005 03/31 3.13 - --
Franklin F-854 2005 03/31 30.38 - --
Fulton Fu-271 2002 03/31 13.36 - --
Genesee Gs-190 2002 03/31 20.24 - --
Greene G-644 2003 03/06 16.69 - --
Greene G-831 2006 03/06 7.19 - --
Hamilton H-3 1966 03/31 12.52 25 Normal
Herkimer He-627 2004 03/28 27.57 - --
Jefferson J-176 2005 -- -- - --
Lewis L-174 2002 03/31 22.00 - --
Livingston Lv-330 2004 -- -- - --
Madison M-178 1975 03/31 4.98 12 Excessive
Monroe Mo-11 1984 03/31 7.26 0 Excessive
Montgomery Mt-411 2004 03/30 31.31 - --
Niagara Ni-70 1973 03/31 1.99 36 Normal
Niagara Ni-869 2003 03/31 0.27 - --
Oneida Oe-151 1926 03/31 20.01 19 Excessive
Oneida Oe-1457 2003 03/31 41.55 - --
Onondaga Od-1825 2004 03/26 9.12 - --
Onondaga Od-1833 2004 03/26 10.37 - --
Ontario **Ot-900 1955 -- -- - --
Ontario Ot-1133 2002 03/31 2.46 - --
Orange O-2271 2002 03/31 5.89 - --
Orange O-2288 2007 03/08 4.24 - --
Orleans Ol-20 2004 03/31 15.38 - --
Oswego Ow-5013 2002 03/31 19.56 - --
Oswego Ow-5014 2002 03/31 20.27 - --
Otsego Og-23 1953 03/31 4.70 21 Excessive
Putnam P-1217 2005 03/31 12.31 - --
Rensselaer Re-703 1983 03/31 36.75 19 Excessive
Rockland Ro-18 1949 03/31 13.75 20 Excessive
Rockland Ro-543 2005 03/31 5.65 - --
St. Lawrence St-40 1953 03/31 4.58 3 Excessive
St. Lawrence St-404 1958 03/31 13.84 83 Deficient
Saratoga Sa-529 1949 03/31 39.57 0 Excessive
Saratoga Sa-1285 2002 03/31 -0.01 - --
Schenectady Sn-730 2004 -- -- - --
Schoharie So-602 2005 03/05 25.93 - --
Schoharie So-604 2006 03/05 9.02 - --
Schuyler Sy-706 2003 -- -- - --
Seneca Se-532 2005 03/31 0.15 - --
Seneca Se-533 2005 03/31 -0.62 - --
Steuben Sb-472 1965 03/31 4.92 3 Excessive
Suffolk *S1810 1976 03/29 52.31 23 Excessive
Suffolk *S1812 1982 03/29 50.55 0 Excessive
Suffolk *S4271 1946 03/31 13.06 0 Excessive
Suffolk *S5517 1948 03/31 45.17 1 Excessive
Suffolk *S8833 1951 03/31 18.82 0 Excessive
Sullivan Sv-535 2001 03/31 6.95 12 Excessive
Tioga Ti-891 2003 03/29 15.64 - --
Tompkins Tm-985 2005 03/31 2.91 - --
Tompkins Tm-1968 2005 -- -- - --
Ulster U-1619 2002 03/31 16.10 6 Excessive
Ulster U-1620 2005 -- -- - --
Warren Wr-80 2005 03/27 18.49 - --
Washington W-533 1974 03/31 4.20 6 Excessive
Wayne Wn-592 2004 -- -- - --
Westchester We-5020 2003 03/31 10.19 - --
Wyoming Wo-4 1974 03/31 9.59 2 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 2,639 3,476 2,372
01323500 Great Sacandaga Lake at Conklinville 19,240 29,990 17,310
04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft
above sea level
March 31, 2007 98.37 March 31, 2006 96.99
Average (1939-2005) 96.17
Maximum daily 100.68 (1976) Minimum daily 93.63 (1940)
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.
