U.S. GEOLOGICAL SURVEY, WRD New York District, Troy, NY WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT FOR JULY 2001 Prepared August 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. The percent of median flow decreased from June to July at all these sites with the largest change occurring at Mohawk River at Cohoes (228% to 99%) and Wallkill River at Gardiner (159% to 53%). 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 Conlkin, Unadilla River at Rockdale, Chenango River at Chenango Forks, Tonawanda Creek at Batavia, and Fall Creek near Ithaca. Sites at Chemung River at Chemung, Cattaraugus Creek at Gowanda, Genesee River at Wellsville, and Oatka Creek at Garbutt were in the deficient range. Allegheny River at Salamanca remained in the deficient range for the third consecutive month. Coram Subdistrict--Summary Report Mean flow at Connetquot Brook near Central Islip was in the normal range for the third consecutive month. ___________________________________________________________________________________________
___________________________________________________________________________________________ Provisional Data for July 2001# INDEX STREAMFLOW STATIONS (Reference period 1961-90)
## Reference period for this site is 1978-99. # Note: Flow statistics based on data collected through July 31, 2001. MONTHLY MEAN DISCHARGE FOR INDEX STREAMFLOW STATIONS
Provisional Data for July 2001# MEAN FLOW FOR SELECTED GAGING STATIONS Percent of median Flow for month Station (cfs) (period of record) 01321000 Sacandaga River near Hope 371 133 01350000 Schoharie Creek at Prattsville 71 81 01371500 Wallkill River at Gardiner 174 53 01372500 Wappinger Cr near Wappingers Falls 41 58 01413500 E Br Delaware River at Margaretville 66 74 01420500 Beaver Kill at Cooks Falls 146 73 01423000 W Br Delaware River at Walton 86 65 01502500 Unadilla River at Rockdale 265 119 01512500 Chenango River near Chenango Forks 705 116 *01531000 Chemung River at Chemung 340 50 *03011020 Allegheny River at Salamanca 374 48 *04213500 Cattaraugus Creek at Gowanda 148 67 04217000 Tonawanda Creek at Batavia 28 76 *04221000 Genesee River at Wellsville 57 50 *04230500 Oatka Creek at Garbutt 44 78 04234000 Fall Creek at Ithaca 44 92 04256000 Independence River at Donnattsburg 85 109 04275500 Ausable River at Au Sable Forks 310 110 # Note: Flow statistics based on data collected through July 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 4,020 4,206 4,082 01323500 Great Sacandaga Lake at Conklinville 30,110 33,130 28,610 04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft above sea level July 31, 2001 95.38 July 31, 2000 96.11 Average (1939-99) 95.79 Maximum daily 99.34 (1973) Minimum daily 93.81 (1965) New York City reservoir system was at 86.7 percent of capacity on July 31, 2001. Normal for this period is 90.3 percent of capacity. Provisional Data for July 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 7/30 10.32 - 0.71 Broome Bm-121 7/25 23.61 + 3.81 Cattaraugus Ct-121 7/23 8.10 + .70 Chautauqua Cu-10 unavailable Chemung Cm-46 7/27 25.28 - .49 Chenango Cn-12 7/30 10.20 - .20 Clinton Cl-145 unavailable Cortland C-102 unavailable Dutchess Du-1009 7/30 17.60 - 2.46 Kings *K1194 7/24 8.94 - .42 Madison M-178 unavailable Nassau *N1259 7/18 46.08 - 4.12 Nassau *N1616 7/18 69.53 - 3.81 Oneida Oe-151 7/31 22.88 - .43 Otsego Og-23 7/30 8.50 - .52 Queens *Q1249 7/25 28.04 - 2.76 St. Lawrence St-40 7/30 7.37 - .57 Saratoga Sa-1100 7/3 80.07 N/A Steuben Sb-472 7/26 9.86 - .05 Suffolk *S1806 7/18 52.75 - 2.63 Suffolk *S1810 7/18 50.40 - .94 Suffolk *S1812 7/20 44.73 - 1.41 Suffolk *S4271 7/18 12.08 + 1.26 Suffolk *S5517 7/18 43.27 - 1.10 Suffolk *S8833 7/17 17.18 + .24 Wyoming Wo-4 7/23 13.12 + .04 * Water level in feet below land-surface datum unless site noted with * which indicates reference to sea level.
