U.S. GEOLOGICAL SURVEY
WATER-RESOURCES CONDITIONS IN NEW YORK
APRIL 2004
U.S. GEOLOGICAL SURVEY, WRD
New York District, Troy, NY
WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT
FOR April 2004
Prepared May 4, 2004
Troy Subdistrict--Summary Report
Provisional streamflow conditions at sites monitored and included in this report in
eastern New York were in the deficient to normal range. The percent exceedence decreased
at Wappinger Creek near Wappingers Falls and Ramapo River at Ramapo from March to April.
All other sites that were included in the report for both months had an increase in their
percent exceedence.
The total New York City reservoir system was at 99.3 percent of capacity on April 30;
normal for this period is 99.8 percent of capacity.
Ithaca Subdistrict--Summary Report
Provisional streamflow conditions at sites monitored and included in this report for
western New York were in the deficient to excessive range. Streamflow at Susquehanna River
at Conklin was in the deficient range after being in the normal range the previous month.
Streamflow at Flint Creek at Phelps and Oatka Creek at Garbutt were in the excessive range.
All other sites were in the normal range.
Coram Subdistrict--Summary Report
Mean flow at Connetquot Brook near Central Islip was in the excessive range for April,
after being in the normal range for the previous two months. Prior to that, mean flow was
in the excessive range for eight consecutive months.
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Provisional Data for April 2004
MEAN FLOW FOR SELECTED GAGING STATIONS
Period
of record Flow Percent
Station (to date) (cfs) Exceedence Conditions
01306460 Connetquot Brook nr Central Islip 1978 37.2 22 Excessive
01312000 Hudson River at Newcomb 1925-87,2002 1,280 33 Normal
01318500 Hudson River at Hadley 1921 6,540 78 Deficient
01321000 Sacandaga River nr Hope 1911 2,600 82 "
01334500 Hoosic River near Eagle Bridge 1910 1,980 62 Normal
01349150 Canajoharie Creek near Canajoharie 1993 140 69 "
01350000 Schoharie Creek at Prattsville 1902 918 58 "
01357500 Mohawk River at Cohoes 1917 11,300 66 "
01371500 Wallkill River at Gardiner 1924 1,480 61 "
01372500 Wappinger Cr nr Wappingers Falls 1928 383 71 "
01387400 Ramapo River at Ramapo 1979 219 60 "
01413500 E Br Delaware River at Margaretville 1937 404 84 Deficient
01420500 Beaver Kill at Cooks Falls 1913 739 85 "
01423000 W Br Delaware River at Walton 1950 746 85 "
01426000 Oquaga Creek at Deposit 1941-73,2002 160 84 "
01502500 Unadilla River at Rockdale 1930-95,2001 1,510 69 Normal
01503000 Susquehanna River at Conklin 1912 5,730 78 Deficient
01512500 Chenango River nr Chenango Forks 1912 4,170 74 Normal
01531000 Chemung River at Chemung 1903 6,820 33 "
03011020 Allegheny River at Salamanca 1903 5,180 59 "
04213500 Cattaraugus Creek at Gowanda 1940-98,2000 1,370 59 "
04217000 Tonawanda Creek at Batavia 1944 508 40 "
04221000* Genesee River at Wellsville 1916 912 34 "
04230500 Oatka Creek at Garbutt 1945 654 22 Excessive
04234000 Fall Creek at Ithaca 1925 428 35 Normal
04235250 Flint Creek at Phelps 1960-95,2002 336 9 Excessive
04243500 Oneida Creek at Oneida 1950 251 68 Normal
04250750 Sandy Creek near Adams 1958-95,2002 414 83 Deficient
04256000 Independence River at Donnattsburg 1942 396 78 "
04262500 W Br Oswegatchie R nr Harrisville 1916 1,010 82 "
04270200 Little Salmon River at Bombay 1958-95,2002 301 46 Normal
04275500 Ausable River at Au Sable Forks 1910-68,1990 1,810 54 "
* Includes 04221500-Genesee River at Scio (1916-72)
MONTHLY MEAN DISCHARGE FOR SELECTED STREAMFLOW STATIONS
Provisional Data for April 2004
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, for Cm-622(replacement) are from Cm-46
(adjusted), and for U-1619(replacement) are from U-405 (adjusted).
Record Percent
County Well No. begins Date Water Level Exceedence Conditions
Albany A-654 2002 4/30 6.06 0 Excessive
Allegany Ag-261 2002 4/29 5.34 - --
Allegany Ag-262 2002 4/29 -0.71 - --
Broome Bm-128 1980 4/28 23.50 54 Normal
Broome Bm-129 1985 4/28 66.73 0 Excessive
Cattaraugus Ct-121 1951 4/28 4.89 60 Normal
Cayuga Cy-7 1966 4/23 18.08 100 Deficient
Chautauqua Cu-10 1939 4/28 25.82 88 Deficient
Chemung Cm-622 2002 4/28 22.47 28 Normal
Chenango Cn-12 1975 4/27 8.56 59 Normal
Clinton Cl-145 1992 4/30 22.78 85 Deficient
Columbia Cb-1071 2004 4/28 9.54 - --
Cortland C-998 2002 4/23 4.26 - --
Delaware D-503 2002 4/05 4.74 - --
Dutchess Du-321 1948 4/29 67.82 - --
Dutchess Du-1009 1967 4/30 13.94 87 Deficient
Erie E-1196 2004 not available
Essex Ex-150 2002 4/26 16.49 - --
Fulton Fu-271 2002 4/20 13.72 - --
Genesee Gs-190 2002 4/28 22.82 - --
Greene G-644 2003 4/08 19.41 - --
Hamilton H-3 1966 4/20 11.76 56 Normal
Herkimer He-627 2004 4/20 28.27 - --
Lewis L-174 2002 4/30 22.62 - --
Livingston Lv-330 2004 not available
Madison M-178 1975 4/23 7.00 72 Normal
Monroe Mo-11 1984 4/29 7.60 17 Excessive
Montgomery Mt-411 2004 not available
Niagara Ni-869 2003 4/28 -0.01 - --
Onondaga Od-1825 2004 4/23 10.66 - --
Od-1833 2004 4/23 11.97 - --
Oneida Oe-151 1926 4/30 18.22 52 Normal
Oneida Oe-1457 2003 4/19 42.36 - --
Ontario **Ot-900 1955 4/29 9.14 55 Normal
Ontario Ot-1133 2002 4/29 2.66 - --
Orange O-2271 2002 4/29 6.38 - --
Orleans Ol-20 2004 4/28 20.15 - --
Oswego Ow-5013 2002 4/23 21.50 - --
Oswego Ow-5014 2002 4/23 22.10 - --
Otsego Og-23 1953 4/27 5.42 72 Normal
Rensselaer Re-703 1983 4/28 36.53 16 Excessive
Rockland Ro-18 1949 4/19 15.04 62 Normal
St. Lawrence St-40 1953 4/27 4.98 47 Normal
Saratoga Sa-1285 2002 4/26 0.58 - --
Schenectady Sn-730 2004 4/26 5.41 - --
Schuyler Sy-706 2003 not available
Steuben Sb-472 1965 4/30 6.26 37 Normal
Suffolk *S1810 1976 4/20 50.58 66 Normal
Suffolk *S1812 1982 4/22 48.29 14 Excessive
Suffolk *S4271 1946 4/20 12.89 2 Excessive
Suffolk *S5517 1948 not available
Suffolk *S8833 1951 4/30 17.96 15 Excessive
Sullivan Sv-535 2001 4/27 9.80 - --
Tioga Ti-891 2003 4/28 16.62 - --
Tompkins Tm-984 2003 not available
Ulster U-1619 2002 4/19 15.99 16 Excessive
Washington W-533 1974 4/29 6.15 76 Deficient
Wayne Wn-592 2004 4/29 8.38 - --
Westchester We-5020 2003 4/19 10.96 - --
Wyoming Wo-4 1974 not available
Yates Ya-180 2004 not available
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 4,415 4,567 4,157
01323500 Great Sacandaga Lake at Conklinville 30,110 37,920 31,660
04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft
above sea level
April 30, 2004 98.11 April 30, 2003 98.24
Average (1939-2002) 98.29
Maximum daily 101.81 (1993) Minimum daily 94.11 (1965)
Provisional Data for April 2004#
INDEX STREAMFLOW STATIONS
(Reference period 1971-2000)
**Excessive ## Reference period is 1978-2000
* Deficient
# Note: Flow statistics based on data collected through April 30, 2004.
NOTES, DEFINITIONS, ETC.
Percent exceedence is, for example, the percentage of November monthly mean discharges for
period of record equal to or greater than the current November 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.
