U.S. GEOLOGICAL SURVEY, WRD New York District, Troy, NY WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT FOR APRIL 2003 Prepared May 1, 2003 Troy Subdistrict--Summary Report Provisional streamflow conditions at sites monitored and included in this report in eastern New York were in the normal to deficient range. Conditions at all these sites decreased from the previous month. Some sites in the Catskill Mountain region and some in the Adirondack Mountain region which were in the excessive range in March, were the sites in the deficient range for April. The total New York City reservoir system was at 99.7 percent of capacity on April 30; normal for this period is 99.8 percent of capacity. Ithaca Subdistrict--Summary Report Provisional streamflow conditions at most sites monitored and included in this report for western New York decreased from the excessive range for March into the normal range for the month of April, except for sites in the westernmost part of the State, Cattaraugus Creek at Gowanda and Tonawanda Creek at Batavia, which dropped from the excessive range into the deficient range. Oneida Creek at Oneida was the only site in western New York to remain in the excessive range for a second consecutive month. Coram Subdistrict--Summary Report Mean flow at Connetquot Brook near Central Islip was in the normal range for the fifth consecutive month. ___________________________________________________________________________________________
___________________________________________________________________________________________ Provisional Data for April 2003 MEAN FLOW FOR SELECTED GAGING STATIONS Period of record Flow Percent Station (to date) (cfs) Exceedence Conditions 01306460 Connetquot Brook nr Central Islip 1978 29 66 Normal 01312000 Hudson River at Newcomb 1925-87,2002 1,170 46 " 01318500 Hudson River at Hadley 1921 7,320 71 " 01321000 Sacandaga River nr Hope 1911 3,050 67 " 01334500 Hoosic River near Eagle Bridge 1910 1,960 62 " 01350000 Schoharie Creek at Prattsville 1902 789 68 " 01357500 Mohawk River at Cohoes 1917 14,400 41 " 01371500 Wallkill River at Gardiner 1924 1,480 62 " 01372500 Wappinger Cr nr Wappingers Falls 1928 386 64 Normal 01413500 E Br Delaware River at Margaretville 1937 445 81 Deficient 01420500 Beaver Kill at Cooks Falls 1913 718 86 Deficient 01423000 W Br Delaware River at Walton 1950 994 65 Normal 01426000 Oquaga Creek at Deposit 1941-73,2002 185 76 Deficient 01502500 Unadilla River at Rockdale 1930-95,2001 1,810 54 Normal 01503000 Susquehanna River at Conklin 1912 8,000 46 " 01512500 Chenango River nr Chenango Forks 1912 5,100 50 " 01531000 Chemung River at Chemung 1903 5,770 47 " 03011020 Allegheny River at Salamanca 1903 4,660 70 Normal 04213500 Cattaraugus Creek at Gowanda 1940-98,2000 1,060 76 Deficient 04217000 Tonawanda Creek at Batavia 1944 269 85 Deficient 04221000* Genesee River at Wellsville 1916 751 51 Normal 04230500 Oatka Creek at Garbutt 1945 378 74 " 04234000 Fall Creek at Ithaca 1925 369 49 " 04235250 Flint Creek at Phelps 1960-95,2002 220 49 Normal 04243500 Oneida Creek at Oneida 1950 434 23 Excessive 04256000 Independence River at Donnattsburg 1942 379 79 Deficient 04262500 W Br Oswegatchie R nr Harrisville 1916 1,070 73 Normal 04270200 Little Salmon River at Bombay 1958-95,2002 190 77 Deficient 04275500 Ausable River at Au Sable Forks 1910-68,1990 1,360 78 Deficient * Includes 04221500-Genesee River at Scio (1916-72) _____________________________________________________________________________________________ MONTHLY MEAN DISCHARGE FOR SELECTED STREAMFLOW STATIONS
_____________________________________________________________________________________________ Provisional Data for April 2003 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, those for Cm-622(replacement) are from Cm-46 (adjusted), and those for U-1619(replacement) are from U-405. Record Percent County Well No. begins Date Water Level Exceedence Conditions Albany A-654 2002 4/28 7.03 17 Excessive Allegany Ag-261 2002 4/30 6.25 - -- Allegany Ag-262 2002 4/30 0.08 - -- Broome Bm-128 1980 4/29 22.21 49 Normal Broome Bm-129 1985 4/29 67.26 36 Normal Cattaraugus Ct-121 1984 4/30 5.93 76 Deficient Chautauqua Cu-10 1939 4/30 21.60 64 Normal Chemung Cm-622 2002 4/29 23.13 71 " Chenango Cn-12 1975 4/29 8.39 59 Normal Clinton Cl-145 1992 4/25 22.57 85 Deficient Cortland C-998 2002 4/30 4.71 - -- Delaware D-503 2002 4/8 3.14 - -- Dutchess Du-1009 1967 4/4 12.58 20 Excessive Essex Ex-150 2002 5/1 16.14 - -- Fulton Fu-271 2002 5/1 14.12 - -- Genesee Gs-190 2002 4/30 27.42 - -- Hamilton H-3 1966 5/1 11.22 40 Normal Lewis L-174 2002 4/22 22.71 - -- Madison M-178 1975 4/30 7.25 76 Deficient Oneida Oe-151 1926 4/16 17.53 44 Normal Ontario **Ot-900 1955 4/30 8.58 73 Normal Ontario Ot-1133 2002 4/30 3.02 - -- Orange O-2271 2002 4/25 6.25 - -- Oswego Ow-5013 2002 4/30 22.11 - -- Oswego Ow-5014 2002 4/30 22.55 - -- Otsego Og-23 1953 4/29 5.44 74 Normal Rockland Ro-18 1949 4/4 13.69 26 " St. Lawrence St-40 1953 4/25 5.21 62 Normal Saratoga Sa-1285 2002 4/28 -0.03 - -- Steuben Sb-472 1965 4/30 4.44 5 Excessive Suffolk *S1810 1976 4/16 48.57 94 Deficient Suffolk *S1812 1982 4/15 44.53 91 Deficient Suffolk *S4271 1946 4/16 11.64 31 Normal Suffolk *S5517 1948 unavailable Suffolk *S8833 1951 4/17 15.02 83 Deficient Sullivan Sv-535 2001 4/25 9.07 - -- Ulster U-1619 2002 4/30 16.64 47 Normal Washington W-533 1974 4/29 5.73 48 " Wyoming Wo-4 1974 5/1 11.85 74 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 4,567 4,641 4,153 01323500 Great Sacandaga Lake at Conklinville 37,920 32,350 31,570 04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft above sea level April 30, 2003 98.24 April 30, 2002 98.04 Average (1939-2001) 98.41 Maximum daily 101.81 (1993) Minimum daily 94.11 (1965) _____________________________________________________________________________________________ Provisional Data for April 2003# INDEX STREAMFLOW STATIONS (Reference period 1971-2000)
## Reference period is 1978-2000 * Deficient # Note: Flow statistics based on data collected through April 30, 2003. _____________________________________________________________________________________________ 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.