U.S. GEOLOGICAL SURVEY

WATER-RESOURCES CONDITIONS IN

NEW YORK

OCTOBER 2002




U.S. GEOLOGICAL SURVEY, WRD New York District, Troy, NY WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT FOR OCTOBER 2002 Prepared November 1, 2002 Troy Subdistrict--Summary Report Provisional streamflow conditions at sites monitored and included in this report in eastern New York were in the normal to excessive range. Heavy precipitation around mid-month caused rises in streamflow and the percent exceedence decreased from September to October at all these sites. The total New York City reservoir system was at 68.3 percent of capacity on October 30; normal for this period is 69.2 percent of capacity. Ithaca Subdistrict--Summary Report Provisional streamflow conditions at sites monitored in western New York were in the normal range at Chemung River at Chemung, Allegheny River at Salamanca, Cattaraugus Creek at Gowanda, Tonawanda Creek at Batavia, Oatka Creek at Garbutt, Fall Creek at Ithaca, and Flint Creek at Phelps. Sites at Susquehanna River at Conklin, Unadilla River at Rockdale, Chenango River at Chenango Forks, and Oneida Creek at Oneida were in the excessive range. Genesee River at Wellsville remained deficient for the second consecutive month. Coram Subdistrict--Summary Report Mean flow at Connetquot Brook near Central Islip was in the deficient range for the twelfth consecutive month. ___________________________________________________________________________________________

___________________________________________________________________________________________ Provisional Data for October 2002 MEAN FLOW FOR SELECTED GAGING STATIONS Period of record Flow Percent Station (to date) (cfs) Exceedence Conditions 01306460 Connetquot Brook nr Central Islip 1978 17 78 Deficient 01312000 Hudson River at Newcomb 1925-87,2002 284 37 Normal 01318500 Hudson River at Hadley 1921 1,650 40 Normal 01321000 Sacandaga River nr Hope 1911 1,070 21 Excessive 01334500 Hoosic River near Eagle Bridge 1910 567 36 Normal 01350000 Schoharie Creek at Prattsville 1902 723 12 Excessive 01357500 Mohawk River at Cohoes 1917 4,410 25 Normal 01371500 Wallkill River at Gardiner 1924 801 21 Excessive 01372500 Wappinger Cr nr Wappingers Falls 1928 106 32 Normal 01413500 E Br Delaware River at Margaretville 1937 243 26 Normal 01420500 Beaver Kill at Cooks Falls 1913 600 21 Excessive 01423000 W Br Delaware River at Walton 1950 583 19 " 01426000 Oquaga Creek at Deposit 1941-73,2002 130 7 " 01502500 Unadilla River at Rockdale 1930-95,2001 685 16 " 01503000 Susquehanna River at Conklin 1912 2,580 19 " 01512500 Chenango River nr Chenango Forks 1912 2,060 19 Excessive 01531000 Chemung River at Chemung 1903 400 62 Normal 03011020 Allegheny River at Salamanca 1903 584 59 " 04213500 Cattaraugus Creek at Gowanda 1940-98,2000 218 65 " 04217000 Tonawanda Creek at Batavia 1944 26 71 " 04221000* Genesee River at Wellsville 1916 48 68 " 04230500 Oatka Creek at Garbutt 1945 31 67 " 04234000 Fall Creek at Ithaca 1925 98 34 " 04235250 Flint Creek at Phelps 1960-95,2002 6.2 59 Normal 04243500 Oneida Creek at Oneida 1950 98 24 Excessive 04256000 Independence River at Donnattsburg 1942 212 23 Excessive 04262500 W Br Oswegatchie R nr Harrisville 1916 398 39 Normal 04270200 Little Salmon River at Bombay 1958-95,2002 75 48 " 04275500 Ausable River at Au Sable Forks 1910-68,1990 516 40 Normal * Includes 04221500-Genesee River at Scio (1916-72) MONTHLY MEAN DISCHARGE FOR SELECTED STREAMFLOW STATIONS

Provisional Data for October 2002 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 N1259, N1616, Q1249, Sa-1100, S1806, and 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. Record Percent County Well No. begins Date Water Level Exceedence Conditions Albany A-654 2002 10/25 11.65 - -- Allegany Ag-262 2002 unavailable Broome Bm-128 1980 10/30 29.18 38 Normal Broome Bm-129 1985 10/30 69.16 0 Excessive Cattaraugus Ct-121 1984 10/25 8.95 96 Deficient Chautauqua Cu-10 1939 10/23 38.61 63 Normal Chemung Cm-46 1955 10/22 24.82 45 Normal Chemung Cm-622 2002 10/30 24.26 - -- Chenango Cn-12 1975 10/30 8.74 29 Normal Clinton Cl-145 1992 10/25 22.92 66 Normal Cortland C-998 2002 10/23 5.38 - -- Dutchess Du-1009 1967 10/25 14.36 20 Excessive Essex Ex-150 2002 10/7 24.91 - -- Genesee Gs-190 2002 10/24 35.42 - -- Hamilton H-3 1966 10/7 14.78 67 Normal Kings *K1194 1971 unavailable Lewis L-174 2002 10/25 25.48 - -- Madison M-178 1975 10/23 9.20 44 Normal Nassau *N1259 1962 10/17 40.89 100 Deficient Nassau *N1616 1966 10/17 64.26 100 " Oneida Oe-151 1926 10/25 27.73 88 Deficient Ontario **Ot-900 1955 unavailable Ontario Ot-1133 2002 " Oswego Ow-5013 2002 10/31 23.88 - -- Oswego Ow-5014 2002 10/31 23.93 - -- Otsego Og-23 1953 10/30 5.33 15 Excessive Queens *Q1249 2000 11/1 25.65 - -- Rockland Ro-18 1949 10/24 25.72 84 Deficient St. Lawrence St-40 1953 10/25 7.37 43 Normal Saratoga Sa-1100 1983 10/30 81.39 61 " Steuben Sb-472 1965 10/30 9.63 35 Normal Suffolk *S1806 1978 10/17 47.97 100 Deficient Suffolk *S1810 1976 10/17 45.38 100 " Suffolk *S1812 1982 10/17 40.79 100 " Suffolk *S4271 1946 10/22 9.72 80 " Suffolk *S5517 1948 11/1 38.95 94 " Suffolk *S8833 1951 10/24 14.65 80 Deficient Sullivan Sv-535 2001 10/24 9.12 - -- Ulster U-1619 2002 10/30 19.16 - -- Washington W-533 1974 10/30 7.08 44 Normal Wyoming Wo-4 1974 10/21 13.49 55 Normal 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 3,465 3,201 2,678 01323500 Great Sacandaga Lake at Conklinville 25,500 21,180 20,210 04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft above sea level October 31, 2002 95.03 October 31, 2001 93.82 Average (1939-2000) 94.83 Maximum daily 99.04 (1978) Minimum daily 92.90 (1942) Provisional Data for October 2002# INDEX STREAMFLOW STATIONS (Reference period 1971-2000)

## Reference period is 1978-2000 * Deficient ** Excessive # Note: Flow statistics based on data collected through October 31, 2002. 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.
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