U.S. GEOLOGICAL SURVEY, WRD New York District, Troy, NY WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT FOR MAY 2001 Prepared June 7, 2001 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. The percent of median flow decreased from April to May at all these sites. The lowest provisional period-of-record minimum monthly mean discharge for May was recorded at East Branch Delaware River at Margaretville (123 cfs - previous = 129 cfs - 64 years), Beaver Kill at Cooks Falls (222 cfs - previous = 224 cfs - 87 years), and West Branch Delaware River at Walton (180 cfs - previous = 190 cfs - 50 years). Also, a new provisional period-of-record minimum daily discharge (affected by regulation) for May was recorded at Mohawk River at Cohoes (129 cfs on May 2 - previous = 408 cfs in 1941). 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 Cattaraugus Creek at Gowanda and Tonawanda Creek at Batavia. Monitored sites at Susquehanna River at Conklin, Unadilla River at Rockdale, Chemung River at Chemung, Chenango River at Chenango Forks, Genesee River at Wellsville, Oatka Creek at Garbutt, and Fall Creek near Ithaca were in the deficient range after being excessive the previous month. Allegheny River at Salamanca also was deficient after previously being in the normal range. Coram Subdistrict--Summary Report Mean flow at Connetquot Brook near Central Islip was in the normal range after two consecutive months in the excessive range. ___________________________________________________________________________________________
___________________________________________________________________________________________ Provisional Data for May 2001# INDEX STREAMFLOW STATIONS (Reference period 1961-90)
## Reference period for this site is 1978-99. * Deficient. # Note: Flow statistics based on data collected through May 31, 2001. MONTHLY MEAN DISCHARGE FOR INDEX STREAMFLOW STATIONS
Provisional Data for May 2001# MEAN FLOW FOR SELECTED GAGING STATIONS Percent of median Flow for month Station (cfs) (period of record) 01321000 Sacandaga River near Hope 1,470 91 *01350000 Schoharie Creek at Prattsville 281 53 01371500 Wallkill River at Gardiner 625 64 *01372500 Wappinger Cr near Wappingers Falls 108 39 *01413500 E Br Delaware River at Margaretville 123 29 *01420500 Beaver Kill at Cooks Falls 222 33 *01423000 W Br Delaware River at Walton 180 31 *01502500 Unadilla River at Rockdale 369 42 *01512500 Chenango River near Chenango Forks 889 37 *01531000 Chemung River at Chemung 939 30 *03011020 Allegheny River at Salamanca 1,430 43 04213500 Cattaraugus Creek at Gowanda 386 58 04217000 Tonawanda Creek at Batavia 206 124 *04221000 Genesee River at Wellsville 171 40 *04230500 Oatka Creek at Garbutt 153 73 *04234000 Fall Creek at Ithaca 73 38 *04256000 Independence River at Donnattsburg 156 70 04275500 Ausable River at Au Sable Forks 1,420 112 # Note: Flow statistics based on data collected through May 31, 2001. * Deficient. 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 4,682 4,564 4,592 01323500 Great Sacandaga Lake at Conklinville 33,950 35,980 33,470 04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft above sea level May 31, 2001 97.72 May 31, 2000 99.91 Average (1939-99) 98.21 Maximum daily 101.55 (1993) Minimum daily 94.91 (1965) New York City reservoir system was at 95.9 percent of capacity on May 31, 2001. Normal for this period is 100 percent of capacity. ___________________________________________________________________________________ Provisional Data for May 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 unavailable Broome Bm-121 5/29 22.69 + 1.62 Cattaraugus Ct-121 unavailable Chautauqua Cu-10 unavailable Chemung Cm-46 5/29 24.26 - .40 Chenango Cn-12 5/29 9.24 - .24 Clinton Cl-145 5/15 22.77 N/A Cortland C-102 5/30 5.44 - .24 Dutchess Du-1009 5/7 12.47 + .93 Kings *K1194 5/16 9.03 - .72 Madison M-178 5/30 8.69 - .92 Nassau *N1259 5/15 47.30 - 2.88 Nassau *N1616 5/15 69.79 - 3.79 Oneida Oe-151 5/31 19.80 - 2.01 Otsego Og-23 5/25 6.91 - 1.19 Queens *Q1249 5/16 27.71 - 3.37 St. Lawrence St-40 5/27 5.38 - .07 Saratoga Sa-1100 unavailable Steuben Sb-472 5/29 9.23 - 1.24 Suffolk *S1806 5/15 54.27 - 1.61 Suffolk *S1810 5/15 51.12 - .30 Suffolk *S1812 5/30 46.89 - .19 Suffolk *S4271 unavailable Suffolk *S5517 5/31 43.61 + .12 Suffolk *S8833 unavailable Wyoming Wo-4 unavailable * Water level in feet below land-surface datum unless site noted with * which indicates reference to sea level.
