U.S. GEOLOGICAL SURVEY
WATER-RESOURCES CONDITIONS IN NEW YORK
SEPTEMBER 2005
U.S. GEOLOGICAL SURVEY, WRD
New York District, Troy, NY
WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT
FOR SEPTEMBER 2005
Prepared October 3, 2005
Troy Subdistrict--Summary Report
Provisional streamflow conditions at sites monitored and included in this report in
mideastern New York were in the normal range. Those sites in the Catskill Mountain
region and the rest of southeastern New York were in the deficient range. And those in
northeastern New York were in the excessive range.
The highest provisional period-of-record maximum monthly mean discharge for September
was recorded at West Branch Oswegatchie River near Harrisville (1916 to date). Stream-
flow at Sandy Creek near Adams remained in the excessive range for the third consecutive
month. Six of the eight sites located in southeastern New York included herein (Wallkill
River at Gardiner, Wappinger Creek near Wappingers Falls, Ramapo River at Ramapo, East
Branch Delaware River at Margaretville, West Branch Delaware River at Walton, and Oquaga
Creek at Deposit) were in the deficient range for the second consecutive month.
The total New York City reservoir system was at 63.9 percent of capacity on September
30; normal for this period is 75.0 percent of capacity.
Ithaca Subdistrict--Summary Report
Provisional streamflow conditions at sites monitored and included in this report
for western New York ranged from normal to excessive during September. Streamflow at
Susquehanna River at Conklin, Chenango River near Chenango Forks, and Fall Creek near
Ithaca increased from deficient during August into the normal range for September.
Streamflow at Tonawanda Creek at Batavia and Oatka Creek at Garbutt was in the
excessive range for the month. Streamflow at all other sites was in the normal range.
Coram Subdistrict--Summary Report
Mean flow at Connetquot Brook near Central Islip was in the deficient range after
six consecutive months in the normal range.
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Provisional Data for September 2005
MEAN FLOW FOR SELECTED GAGING STATIONS
Period
of record Flow Percent
Station (to date) (cfs) Exceedence Conditions
01306460 Connetquot Brook nr Central Islip 1978 16.7 84 Deficient
01312000 Hudson River at Newcomb 1925-87,2002 322 20 Excessive
01318500 Hudson River at Hadley 1921 1,310 38 Normal
01321000 Sacandaga River nr Hope 1911 381 31 "
01334500 Hoosic River near Eagle Bridge 1910 217 70 "
01349150 Canajoharie Creek near Canajoharie 1993 3.7 64 Normal
01350000 Schoharie Creek at Prattsville 1902 24.7 84 Deficient
01357500 Mohawk River at Cohoes 1917 1,580 63 Normal
01371500 Wallkill River at Gardiner 1924 44.1 98 Deficient
01372500 Wappinger Cr nr Wappingers Falls 1928 7.3 98 "
01387400 Ramapo River at Ramapo 1979 14.5 89 "
01413500 E Br Delaware River at Margaretville 1937 17.1 92 "
01420500 Beaver Kill at Cooks Falls 1913 84.8 78 "
01423000 W Br Delaware River at Walton 1950 36.0 90 "
01426000 Oquaga Creek at Deposit **1941-73,2002 4.7 82 Deficient
01502500 Unadilla River at Rockdale 1930-95,2001 192 41 Normal
01503000 Susquehanna River at Conklin 1912 489 67 "
01512500 Chenango River nr Chenango Forks 1912 389 59 "
01531000 Chemung River at Chemung 1903 587 32 "
03011020 Allegheny River at Salamanca 1903 796 28 "
04213500 Cattaraugus Creek at Gowanda 1940-98,2000 294 33 Normal
04217000 Tonawanda Creek at Batavia 1944 175 9 Excessive
04221000* Genesee River at Wellsville 1916 55.6 49 Normal
04230500 Oatka Creek at Garbutt 1945 63.8 16 Excessive
04234000 Fall Creek at Ithaca 1925 29.9 64 Normal
04235250 Flint Creek at Phelps 1960-95,2002 13.3 36 "
04243500 Oneida Creek at Oneida 1950 35.6 68 Normal
04250750 Sandy Creek near Adams 1958-95,2002 359 2 Excessive
04256000 Independence River at Donnattsburg 1942 180 12 "
04262500 W Br Oswegatchie R nr Harrisville 1916 688 0 "
04270200 Little Salmon River at Bombay 1958-95,2002 138 3 "
04275500 Ausable River at Au Sable Forks 1910-68,1990 440 16 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 September 2005
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 09/28 9.41 30 Normal
Allegany Ag-261 2002 09/29 4.36 - --
Allegany Ag-262 2002 09/29 0.76 - --
Broome Bm-128 1980 09/30 29.65 88 Deficient
Broome Bm-129 1985 09/30 69.90 69 Normal
Cattaraugus Ct-121 1951 09/30 9.67 62 Normal
Cayuga Cy-223 2005 09/23 17.99 - --
Chautauqua Cu-10 1939 09/30 34.52 39 Normal
Chemung Cm-622 2002 09/30 24.84 50 Normal
Chenango Cn-12 1975 09/28 11.73 94 Deficient
Clinton Cl-145 1992 09/30 22.70 17 Excessive
Columbia Cb-1071 2004 09/29 13.25 - --
Cortland C-998 2002 09/23 5.73 - --
Delaware D-503 2002 09/30 7.82 - --
Dutchess Du-321 1948 09/30 70.20 63 Normal
Dutchess Du-1009 1967 09/30 19.35 92 Deficient
Erie E-1196 2004 09/30 12.79 - --
Essex Ex-150 2002 09/30 24.68 - --
Franklin F-60 2005 09/30 2.80 - --
Franklin F-854 2005 09/30 112.45 - --
Fulton Fu-271 2002 09/27 16.22 - --
Genesee Gs-190 2002 09/28 30.58 - --
Greene G-644 2003 09/22 23.75 - --
Hamilton H-3 1966 09/30 14.10 25 Normal
Herkimer He-627 2004 09/27 30.82 - --
Jefferson J-174 2005 09/26 -1.12 - --
Lewis L-174 2002 09/26 24.48 - --
Livingston Lv-330 2004 09/23 12.16 - --
Madison M-178 1975 09/30 10.28 82 Deficient
Monroe Mo-11 1984 09/29 7.82 0 Excessive
Montgomery Mt-411 2004 09/27 35.51 - --
Niagara Ni-70 1973 09/30 7.84 48 Normal
Niagara Ni-869 2003 09/30 0.77 - --
Oneida Oe-151 1926 09/30 24.64 20 Excessive
Oneida Oe-1457 2003 09/30 43.91 - --
Onondaga Od-1825 2004 09/23 13.38 - --
Onondaga Od-1833 2004 09/23 15.16 - --
Ontario **Ot-900 1955 09/29 6.39 57 Normal
Ontario Ot-1133 2002 09/29 3.52 - --
Orange O-2271 2002 09/30 6.91 - --
Orleans Ol-20 2004 09/30 21.20 - --
Oswego Ow-5013 2002 09/30 23.50 - --
Oswego Ow-5014 2002 09/30 23.28 - --
Otsego Og-23 1953 09/28 6.86 14 Excessive
Putnam P-1217 2005 09/14 16.90 - --
Rensselaer Re-703 1983 09/28 37.68 31 Normal
Rockland Ro-18 1949 09/30 27.00 98 Deficient
RRckland Ro-543 2005 09/30 10.41 - --
St. Lawrence St-40 1953 09/23 6.53 11 Excessive
St. Lawrence St-404 1958 09/28 14.85 44 Normal
Saratoga Sa-1285 2002 09/29 4.49 - --
Schenectady Sn-730 2004 09/16 8.08 - --
Schoharie So-602 2005 09/22 29.00 - --
Schuyler Sy-706 2003 09/23 9.81 - --
Seneca Se-532 2005 09/23 2.76 - --
Se-533 2005 09/23 2.68 - --
Steuben Sb-472 1965 09/29 10.12 47 Normal
Suffolk *S1810 1976 09/20 49.76 61 "
Suffolk *S1812 1982 09/22 44.88 61 "
Suffolk *S4271 1946 09/21 10.84 40 Normal
Suffolk *S5517 1948 unavailable
Suffolk *S8833 1951 09/30 15.99 46 Normal
Sullivan Sv-535 2001 09/28 10.91 - --
Tioga Ti-891 2003 09/28 27.80 - --
Tompkins Tm-985 2005 09/23 5.20 - --
Tm-1968 2005 09/23 20.05 - --
Ulster U-1619 2002 09/30 18.20 61 Normal
U-1620 2005 09/13 31.13 - --
Warren Wr-80 2005 09/27 19.27 - --
Washington W-533 1974 09/28 7.56 84 Deficient
Wayne Wn-592 2004 09/23 9.29 - --
Westchester We-5020 2003 09/15 15.22 - --
Wyoming Wo-4 1974 09/30 13.13 18 Excessive
Yates Ya-180 2004 09/23 5.32 - --
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 3,739 3,512 2,862
01323500 Great Sacandaga Lake at Conklinville 24,620 26,900 22,160
04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft
above sea level
September 30, 2005 95.29 September 30, 2004 97.39
Average (1939-2003) 94.84
Maximum daily 97.79 (1976) Minimum daily 92.91 (1941)
Provisional Data for September 2005#
INDEX STREAMFLOW STATIONS
(Reference period 1971-2000)
## Reference period is 1978-2000
* Deficient @ Sept. 16-17,27 @@ Sept. 3-7,9-14 ** Excessive
# Note: Flow statistics based on data collected through September 30, 2005.
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.
