U.S. GEOLOGICAL SURVEY, WRD New York District, Troy, NY WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT FOR JULY 2000 Prepared August 2, 2000 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 East Branch Delaware River at Margaretville and West Branch Delaware River at Walton. Mean flows at these 2 sites were in the normal range. As in the past 3 months, precipitation was above normal in the Capital Region for July (4.47 in., normal = 3.18 in.) and for the year to date (30.41 in., normal = 20.76 in.). Conditions were in the excessive range for the third consecutive month at Mohawk River at Cohoes, Wappinger Creek near Wappingers Falls, and Beaver Kill at Cooks Falls, and the fifth consecutive month at Hudson River at Hadley. Ithaca Subdistrict--Summary Report Provisional mean monthly flows at monitored sites included in this report for western New York were in the normal range at Chemung River at Chemung, Oatka Creek at Garbutt, Allegheny River at Salamanca, Tonawanda Creek at Batavia and Genesee River at Wellsville. Susquehanna River at Conklin returned to the normal range after being excessive the previous five months. Chenango River at Chenango Forks remained in the excessive range. Coram Subdistrict--Summary Report Provisional mean flow at Carlls River at Babylon was in the deficient range for this month. The third lowest period-of-record (56 years) minimum monthly mean discharge (provisional) for July was recorded ___________________________________________________________________________________________
___________________________________________________________________________________________ Provisional Data for July 2000# INDEX STREAMFLOW STATIONS (Reference period 1961-90)
* Deficient. ** Excessive. # Note: Flow statistics based on data collected through July 31, 2000. MONTHLY MEAN DISCHARGE FOR INDEX STREAMFLOW STATIONS
Provisional Data for July 2000# MEAN FLOW FOR SELECTED GAGING STATIONS Percent of median Flow for month Station (cfs) (period of record) **01321000 Sacandaga River near Hope 864 306 **01350000 Schoharie Creek at Prattsville 305 363 **01371500 Wallkill River at Gardiner 784 237 **01372500 Wappinger Creek near Wappingers Falls 172 242 01413500 E Br Delaware River at Margaretville 135 165 **01420500 Beaver Kill at Cooks Falls 576 288 01423000 W Br Delaware River at Walton 250 189 **01512500 Chenango River near Chenango Forks 1,220 201 01531000 Chemung River at Chemung 668 98 03011020 Allegheny River at Salamanca 669 86 04217000 Tonawanda Creek at Batavia 56 153 04221000 Genesee River at Wellsville 86 75 04230500 Oatka Creek at Garbutt 85 151 **04256000 Independence River at Donnattsburg 157 201 ** 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 4,206 4,166 4,081 01323500 Great Sacandaga Lake at Conklinville 33,120 27,230 28,540 04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft above sea level July 31, 2000 96.11 July 31, 1999 94.79 Average (1939-98) 95.81 Maximum daily 99.34 (1973) Minimum daily 93.81 (1965) New York City reservoir system was at 97.4 percent of capacity on July 31, 2000. Normal for this period is 90.3 percent of capacity. # Note: Flow statistics based on data collected through July 31, 2000. ___________________________________________________________________________________________ Provisional Data for July 2000 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 1997) Albany A-636 7/31 8.54 + 1.05 Broome Bm-121 7/21 22.08 + 5.44 Cattaraugus Ct-121 7/17 6.61 + 2.19 Chautauqua Cu-10 7/18 24.78 + 3.26 Chemung Cm-46 7/20 24.47 + .31 Chenango Cn-12 7/27 9.82 + .25 Cortland C-102 7/11 4.57 + 2.21 Dutchess Du-1009 unavailable Kings *K1194 7/27 9.12 - .24 Madison M-178 7/13 7.98 + 1.22 Nassau *N1259 7/18 45.73 - 4.47 Nassau *N1616 7/18 68.98 - 4.36 Oneida Oe-151 7/23 22.32 + .01 Otsego Og-23 7/6 7.30 + .71 Queens *Q1249 7/31 24.52 - 6.28 St. Lawrence St-40 7/31 6.39 + .41 Saratoga Sa-1100 7/27 69.32 + 7.56 Steuben Sb-472 7/20 9.13 + .68 Suffolk *S1806 7/18 53.04 - 2.34 Suffolk *S1810 7/18 50.80 - .54 Suffolk *S1812 7/21 45.63 - .51 Suffolk *S4271 7/19 10.91 + .10 Suffolk *S5517 7/19 42.37 - 1.96 Suffolk *S8833 7/20 15.84 + 1.10 Wyoming Wo-4 7/21 12.81 + .35 * Water level in feet below land-surface datum unless site noted with * which indicates reference to sea level.
