U.S. GEOLOGICAL SURVEY

WATER-RESOURCES CONDITIONS IN

NEW YORK

AUGUST 2001




U.S. GEOLOGICAL SURVEY, WRD New York District, Troy, NY WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT FOR AUGUST 2001 Prepared September 6, 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. Below normal precipitation and above normal temperatures for August attributed to these conditions. The percent of median flow decreased from July to August at all these sites with the largest change occurring at Hudson River at Hadley (158% to 57%). Ithaca Subdistrict--Summary Report Provisional streamflow conditions at sites monitored and included in this report for western New York were in the deficient range throughout the western part of the state except for Chenango River near Chenango Forks and Unadilla River at Rockdale, both stations located in the Upper Susquehanna River basin, which remained in the normal range. The Allegheny River at Salamanca continued in the deficient range for the fourth consecutive month. The second lowest monthly mean discharge for August was recorded at Cattaraugus Creek at Gowanda, which remained deficient for the second con- secutive month. Chemung River at Chemung, Genesee River at Wellsville, and Oatka Creek at Garbutt were also all deficient for the second consecutive month. Tonawanda Creek at Batavia and Fall Creek near Ithaca both decreased from normal during July into the deficient range for August. Coram Subdistrict--Summary Report Mean flow at Connetquot Brook near Central Islip was in the deficient range after three consecutive months in the normal range. ___________________________________________________________________________________________

___________________________________________________________________________________________ Provisional Data for August 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 August 31, 2001. MONTHLY MEAN DISCHARGE FOR INDEX STREAMFLOW STATIONS

Provisional Data for August 2001# MEAN FLOW FOR SELECTED GAGING STATIONS Percent of median Flow for month Station (cfs) (period of record) 01321000 Sacandaga River near Hope 186 86 01350000 Schoharie Creek at Prattsville 37 66 *01371500 Wallkill River at Gardiner 103 44 *01372500 Wappinger Cr near Wappingers Falls 14 38 *01413500 E Br Delaware River at Margaretville 24 50 *01420500 Beaver Kill at Cooks Falls 60 43 *01423000 W Br Delaware River at Walton 39 44 01502500 Unadilla River at Rockdale 106 67 01512500 Chenango River near Chenango Forks 319 70 *01531000 Chemung River at Chemung 178 44 *03011020 Allegheny River at Salamanca 222 38 *04213500 Cattaraugus Creek at Gowanda 99 55 *04217000 Tonawanda Creek at Batavia 11 40 *04221000 Genesee River at Wellsville 30 51 *04230500 Oatka Creek at Garbutt 30 71 *04234000 Fall Creek at Ithaca 22 62 *04256000 Independence River at Donnattsburg 44 68 *04275500 Ausable River at Au Sable Forks 172 65 # Note: Flow statistics based on data collected through August 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 3,627 3,889 3,387 01323500 Great Sacandaga Lake at Conklinville 26,920 31,720 24,840 04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft above sea level August 31, 2001 94.71 August 31, 2000 95.56 Average (1939-99) 95.19 Maximum daily 98.31 (1976) Minimum daily 93.39 (1949) New York City reservoir system was at 75.1 percent of capacity on August 31, 2001. Normal for this period is 81.2 percent of capacity. Provisional Data for August 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 8/28 11.14 - 0.90 Broome Bm-121 8/29 24.77 + 3.63 Cattaraugus Ct-121 8/7 8.68 + 1.43 Chautauqua Cu-10 8/7 30.33 + 3.17 Chemung Cm-46 8/30 25.61 - .53 Chenango Cn-12 8/30 11.58 - 1.44 Clinton Cl-145 8/13 23.81 N/A Cortland C-102 8/29 7.41 + .27 Dutchess Du-1009 unavailable Kings *K1194 8/29 8.71 - 1.57 Madison M-178 8/3 8.97 + .56 Nassau *N1259 8/28 44.79 - 4.54 Nassau *N1616 8/28 68.85 - 4.97 Oneida Oe-151 8/19 24.43 + .07 Otsego Og-23 8/30 9.76 - .88 Queens *Q1249 8/29 27.89 - 3.06 St. Lawrence St-40 8/26 7.87 - .36 Saratoga Sa-1100 8/27 95.94 -22.58 Steuben Sb-472 8/30 10.20 - .04 Suffolk *S1806 8/28 51.61 - 2.56 Suffolk *S1810 8/28 49.60 - 1.43 Suffolk *S1812 8/30 45.06 - .28 Suffolk *S4271 8/21 12.06 + 1.58 Suffolk *S5517 8/21 43.57 - .59 Suffolk *S8833 8/23 17.06 - .28 Wyoming Wo-4 8/7 13.50 - .10 * Water level in feet below land-surface datum unless site noted with * which indicates reference to sea level.

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