U.S. GEOLOGICAL SURVEY, WRD New York District, Troy, NY WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT FOR JULY 1999 Prepared August 2, 1999 Troy Subdistrict--Summary Report Provisional mean flows in eastern New York ranged from deficient to excessive at all sites monitored and included in this report. The percent of median flow increased from June to July at all these sites except at Wallkill River at Gardiner (deficient for fourth consecutive month) and Wappinger Creek near Wappingers Falls (deficient for third consecutive month). Streamflow conditions were also in the deficient range at Hudson River at Hadley for the third consecutive month. On July 9 the state Disaster Preparedness Commission expanded its drought warning to include 18 counties located within the Susquehanna, upper Hudson, and Mohawk River basins and expanded its drought watch advisory to cover the rest of New York State. Four more sites have been added to our end-of-month report for the area of the state covered by our Troy office. Two are in the Delaware River basin, 1 is in the Hudson River basin, and 1 in the Black River basin. Ithaca Subdistrict--Summary Report Provisional mean flows at all monitored sites included in this report for western New York were in the deficient range except at Susquehanna River at Conklin. Mean flow at this site was in the normal range. One more site (in the Susquehanna River basin) has been added to this report for the area covered by our Ithaca office. Coram Subdistrict--Summary Report Provisional mean flow at Massapequa Creek at Massapequa was in the deficient range for the fifth consecutive month. A new provisional period-of-record (62 years) minimum daily discharge for July was recorded. ___________________________________________________________________________________________
___________________________________________________________________________________________ Provisional Data for July 1999# INDEX STREAMFLOW STATIONS (Reference period 1961-90)
* Deficient. e Estimate. ** Excessive. # Note: Flow statistics based on data collected through July 31, 1999. MONTHLY MEAN DISCHARGE FOR INDEX STREAMFLOW STATIONS
Provisional Data for July 1999# MEAN FLOW FOR SELECTED GAGING STATIONS Percent of median Flow for month Station (cfs) (period of record) 01321000 Sacandaga River near Hope 186 66 01350000 Schoharie Creek at Prattsville 143 170 *01371500 Wallkill River at Gardiner 47 14 *01372500 Wappinger Creek near Wappingers Falls 22 31 **01413500 E Br Delaware River at Margaretville 270 329 01420500 Beaver Kill at Cooks Falls 158 79 01423000 W Br Delaware River at Walton 192 145 *01512500 Chenango River near Chenango Forks 230 38 *01531000 Chemung River at Chemung 221 32 *03011020 Allegheny River at Salamanca 370 47 *04217000 Tonawanda Creek at Batavia 14 38 *04221000 Genesee River at Wellsville 41 36 *04230500 Oatka Creek at Garbutt 39 69 04256000 Independence River at Donnattsburg 72 92 * Deficient. ** 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 4,166 4,142 4,080 01323500 Great Sacandaga Lake at Conklinville 27,230 32,070 28,560 04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft above sea level July 31, 1999 94.79 July 31, 1998 97.68 Average (1939-97) 95.76 Maximum daily 99.34 (1973) Minimum daily 93.81 (1965) New York City reservoir system was at 78.0 percent of capacity on July 31, 1999. Normal for this period is 90.3 percent of capacity. # Note: Flow statistics based on data collected through July 31, 1999. ___________________________________________________________________________________________ Provisional Data for July 1999 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 7/30 11.22 - 1.63 Broome Bm-121 7/6 24.60 + 2.92 Cattaraugus Ct-121 7/29 7.31 + 1.49 Chautauqua Cu-10 7/29 35.52 - 7.48 Chemung Cm-46 7/29 25.41 - .63 Chenango Cn-12 7/6 10.26 - .19 Dutchess Du-1009 7/28 18.80 - 3.67 Kings K1194 7/16 10.05 + .69 Madison M-178 8/2 10.32 - 1.12 Nassau N1259 7/20 44.57 - 5.63 Nassau N1616 7/20 70.19 - 3.15 Oneida Oe-151 7/30 24.99 - 2.66 Otsego Og-23 7/6 7.48 + .53 Queens Q1249 7/22 19.39 -11.41 St. Lawrence St-40 8/2 6.59 + .21 Saratoga Sa-1100 7/28 89.78 -12.90 Steuben Sb-472 7/29 10.15 - .34 Suffolk S1806 7/20 52.45 - 2.93 Suffolk S1810 7/20 49.47 - 1.87 Suffolk S1812 7/22 44.20 - 1.94 Suffolk S4271 7/15 11.07 + .26 Suffolk S5517 7/15 43.32 - 1.01 Suffolk S8833 7/21 16.33 - .61 Wyoming Wo-4 7/29 13.57 - .41 * Water level in feet below land-surface datum unless noted with * which indicates reference to sea level. Note: Data for C-192, unavailable.
