U.S. GEOLOGICAL SURVEY

WATER-RESOURCES CONDITIONS IN

NEW YORK

FEBRUARY 2001




U.S. GEOLOGICAL SURVEY, WRD New York District, Troy, NY WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT FOR FEBRUARY 2001 Prepared March 1, 2001 Troy Subdistrict--Summary Report Provisional streamflow conditions at sites monitored and included in this report in eastern New York were in the normal range except at West Branch Oswegatchie River near Harrisville. The percent of median flow at this site increased from January to February (66% to 159%) and the mean flow was now in the excessive range after being deficient last month. Adjustments were made to flows at Wappinger Creek near Wappingers Falls, Beaver Kill at Cooks Falls, and Independence River at Donnattsburg due to ice effect during February. Extreme ice conditions were reported for Sacandaga River near Hope, Schoharie Creek at Prattsville, Wallkill River at Gardiner, and Ausable River at Au Sable Forks (new to report), and therefore these sites were not included in this report. Ithaca Subdistrict--Summary Report Provisional streamflow conditions at sites monitored and included in this report for western New York were in the normal range at Susquehanna River at Conklin, Unadilla River at Rockdale, Chemung River at Chemung, Allegheny River at Salamanca, and Fall Creek near Ithaca. Genesee River at Wellsville returned to the normal range after being deficient the previous three months. Sites at Cattaraugus Creek at Gowanda, Tonawanda Creek at Batavia, and Oatka Creek at Garbutt were in the excessive range. Chenango River at Chenango Forks remained in the deficient range for the second consecutive month. Unadilla River at Rockdale, Cattaraugus Creek at Gowanda, and Fall Creek near Ithaca are new to the report Coram Subdistrict--Summary Report February mean flow at Connetquot Brook near Central Islip was in the normal range. ___________________________________________________________________________________________

___________________________________________________________________________________________ Provisional Data for February 2001# INDEX STREAMFLOW STATIONS (Reference period 1961-90)

## Reference period for this site is 1978-99. ** Excessive. # Note: Flow statistics based on data collected through February 28, 2001. MONTHLY MEAN DISCHARGE FOR INDEX STREAMFLOW STATIONS

Provisional Data for February 2001# MEAN FLOW FOR SELECTED GAGING STATIONS Percent of median Flow for month Station (cfs) (period of record) 01372500 Wappinger Cr near Wappingers Falls e310 96 01413500 E Br Delaware River at Margaretville 295 101 01420500 Beaver Kill at Cooks Falls e330 84 01423000 W Br Delaware River at Walton 649 111 01502500 Unadilla River at Rockdale 936 120 *01512500 Chenango River near Chenango Forks 1,240 56 01531000 Chemung River at Chemung 1,560 68 03011020 Allegheny River at Salamanca 3,650 136 **04213500 Cattaraugus Creek at Gowanda 1,360 159 **04217000 Tonawanda Creek at Batavia 527 189 04221000 Genesee River at Wellsville 417 107 **04230500 Oatka Creek at Garbutt 428 149 04234000 Fall Creek at Ithaca 233 112 04256000 Independence River at Donnattsburg e160 125 e Estimate. * Deficient. ** Excessive. 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 3,085 3,796 2,025 01323500 Great Sacandaga Lake at Conklinville 14,180 16,070 13,080 04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft above sea level February 28, 2001 95.24 February 28, 2000 96.44 Average (1939-99) 95.55 Maximum daily 98.99 (1981) Minimum daily 93.55 (1948) New York City reservoir system was at 89.6 percent of capacity on February 26, 2001. Normal for this period is 83.2 percent of capacity. # Note: Flow statistics based on data collected through February 28, 2001. ___________________________________________________________________________________________ Provisional Data for February 2001 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. Departure from Median County Well No. Date Water Level (through 1999) Albany A-636 2/26 9.80 + 0.22 Broome Bm-121 2/27 21.81 + 4.19 Cattaraugus Ct-121 2/27 6.45 - .31 Chautauqua Cu-10 2/27 23.05 - .95 Chemung Cm-46 2/27 24.35 - .25 Chenango Cn-12 2/27 8.69 + .38 Cortland C-102 unavailable Dutchess Du-1009 unavailable Kings *K1194 2/22 8.76 + 1.14 Madison M-178 2/24 6.61 + 1.20 Nassau *N1259 2/15 45.48 - 3.66 Nassau *N1616 2/15 68.28 - 4.24 Oneida Oe-151 2/5 26.05 - 3.18 Otsego Og-23 2/27 5.38 + .32 Queens *Q1249 2/26 26.27 - 2.93 St. Lawrence St-40 2/26 6.27 + .39 Saratoga Sa-1100 unavailable Steuben Sb-472 2/27 8.62 - .26 Suffolk *S1806 2/15 51.77 - 2.49 Suffolk *S1810 2/15 48.91 - .80 Suffolk *S1812 2/21 45.63 - 1.06 Suffolk *S4271 2/20 10.90 + .17 Suffolk *S5517 2/20 41.10 - .19 Suffolk *S8833 2/21 14.86 - 1.24 Wyoming Wo-4 unavailable * Water level in feet below land-surface datum unless site noted with * which indicates reference to sea level.

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