U.S. GEOLOGICAL SURVEY, WRD New York District, Troy, NY WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT FOR APRIL 2001 Prepared May 1, 2001 Troy Subdistrict--Summary Report Provisional streamflow conditions at sites monitored and included in this report in eastern New York were in the excessive range except at Wallkill River at Gardiner and Wappinger Creek near Wappingers Falls. Mean flows at these 2 sites were in the normal range after being in the excessive range last month. After the first week of April, unseasonably warm temperatures caused rapid snowmelt, especially in the higher elevations. The percent of median flow at all sites that were in the deficient range last month in- creased by at least 90% from March to April and conditions were now in the excessive range. 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 Allegheny River at Salamanca, Tonawanda Creek at Batavia, Cattaraugus Creek at Gowanda, and Oatka Creek at Garbutt. Sites at Susquehanna River at Conklin, Unadilla River at Rockdale, Chemung River at Chemung, Chenango River at Chenango Forks, Genesee River at Wellsville, and Fall Creek near Ithaca were in the excessive range. Coram Subdistrict--Summary Report Mean flow at Connetquot Brook near Central Islip was in the excessive range for the second consecutive month. ___________________________________________________________________________________________
___________________________________________________________________________________________ Provisional Data for April 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 April 30, 2001. MONTHLY MEAN DISCHARGE FOR INDEX STREAMFLOW STATIONS
Provisional Data for April 2001# MEAN FLOW FOR SELECTED GAGING STATIONS Percent of median Flow for month Station (cfs) (period of record) **01321000 Sacandaga River near Hope 4,470 127 **01350000 Schoharie Creek at Prattsville 1,730 173 01371500 Wallkill River at Gardiner 1,820 98 01372500 Wappinger Cr near Wappingers Falls 514 115 **01413500 E Br Delaware River at Margaretville 1,090 163 **01420500 Beaver Kill at Cooks Falls 1,760 142 **01423000 W Br Delaware River at Walton 1,930 172 **01502500 Unadilla River at Rockdale 3,160 171 **01512500 Chenango River near Chenango Forks 8,440 166 **01531000 Chemung River at Chemung 9,640 177 03011020 Allegheny River at Salamanca 6,760 121 04213500 Cattaraugus Creek at Gowanda 1,550 111 04217000 Tonawanda Creek at Batavia 563 138 **04221000 Genesee River at Wellsville 1,260 165 04230500 Oatka Creek at Garbutt 615 123 **04234000 Fall Creek at Ithaca 543 161 **04256000 Independence River at Donnattsburg 718 145 **04275500 Ausable River at Au Sable Forks 3,220 176 # Note: Flow statistics based on data collected through April 30, 2001. ** 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 4,655 4,702 4,143 01323500 Great Sacandaga Lake at Conklinville 30,940 36,560 31,570 04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft above sea level April 30, 2001 100.82 April 30, 2000 100.42 Average (1939-99) 98.37 Maximum daily 101.81 (1993) Minimum daily 94.11 (1965) New York City reservoir system was at 99.3 percent of capacity on April 30, 2001. Normal for this period is 99.8 percent of capacity. ___________________________________________________________________________________ Provisional Data for April 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 4/30 7.82 + 0.74 Broome Bm-121 unavailable Cattaraugus Ct-121 unavailable Chautauqua Cu-10 4/23 22.92 - 3.12 Chemung Cm-46 4/24 23.05 + .01 Chenango Cn-12 4/30 9.04 - .82 Cortland C-102 unavailable Dutchess Du-1009 unavailable Kings *K1194 4/25 8.79 - 1.14 Madison M-178 unavailable Nassau *N1259 4/23 48.71 - 1.59 Nassau *N1616 4/23 69.53 - 4.25 Oneida Oe-151 unavailable Otsego Og-23 4/30 6.18 - 1.10 Queens *Q1249 4/24 27.41 - 2.31 St. Lawrence St-40 4/29 5.09 - .04 Saratoga Sa-1100 unavailable Steuben Sb-472 4/22 6.22 + .40 Suffolk *S1806 4/23 54.82 - .49 Suffolk *S1810 4/23 51.40 + .44 Suffolk *S1812 4/19 47.80 + .85 Suffolk *S4271 4/18 11.27 + .28 Suffolk *S5517 4/18 43.02 + .71 Suffolk *S8833 4/19 17.05 + .60 Wyoming Wo-4 unavailable * Water level in feet below land-surface datum unless site noted with * which indicates reference to sea level.
