U.S. GEOLOGICAL SURVEY, WRD New York District, Troy, NY WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT FOR APRIL 1999 Prepared May 3, 1999 Troy Subdistrict--Summary Report Provisional streamflow conditions at sites monitored and included in this report in northeastern New York were in the normal range. Provisional mean flows for the remaining sites in eastern New York included herein were in the deficient range. April precipitation was much below normal in the capital region. Only 0.60 inches of rain fell at Albany during this month; it was the driest April of this century. A new provisional period-of-record minimum daily discharge for April was recorded at Mohawk River at Cohoes (786 cfs - previous was 829 cfs - 81 years). Ithaca Subdistrict--Summary Report Provisional mean flows in western New York for the month of April were in the normal range at monitored sites at Chemung River at Chemung, Allegheny River at Salamanca, and Genesee River at Wellsville. Monitored sites at Tonawanda Creek at Batavia, Oatka Creek at Garbutt, and Susquehanna River at Conklin remained in the deficient range from the previous month. Coram Subdistrict--Summary Report Provisional mean flow at Massapequa Creek at Massapequa was in the deficient range for the second consecutive month. Provisional Data for April 1999# INDEX STREAMFLOW STATIONS (Reference period 1961-90)
* Deficient. # Note: Flow statistics based on data collected through April 30, 1999. MONTHLY MEAN DISCHARGE FOR INDEX STREAMFLOW STATIONS
Provisional Data for April 1999# MEAN FLOW FOR SELECTED GAGING STATIONS Percent of median Flow for month of Apr. Station (cfs) (period of record) *01350000 Schoharie Creek at Prattsville 555 54 *01371500 Wallkill River at Gardiner 801 43 *01372500 Wappinger Cr near Wappingers Falls 206 46 *01420500 Beaver Kill at Cooks Falls 634 51 01531000 Chemung River at Chemung 4,360 88 03011020 Allegheny River at Salamanca 5,500 101 *04217000 Tonawanda Creek at Batavia 312 80 04221000 Genesee River at Wellsville 694 116 *04230500 Oatka Creek at Garbutt 311 72 # Note: Flow statistics based on data collected through April 30, 1999. * 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 4,393 4,481 4,135 01323500 Great Sacandaga Lake at Conklinville 30,270 33,040 31,520 04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft above sea level April 30, 1999 97.25 April 30, 1998 99.20 Average (1939-97) 98.35 Maximum daily 101.81 (1993) Minimum daily 94.11 (1965) New York City reservoir system was at 91.8 percent of capacity on April 30, 1999. Normal for this period is 99.8 percent of capacity. Provisional Data for April 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, 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 4/30 8.93 - 0.37 Broome Bm-121 4/15 20.99 + 1.61 Cattaraugus Ct-121 4/22 4.25 + 1.08 Kings K1194 4/28 10.23* + .30 Nassau N1259 4/28 47.39* - 2.91 Nassau N1616 4/28 71.25* - 2.53 Queens Q1249 4/19 20.23* - 9.49 St. Lawrence St-40 4/26 5.13 - .05 Saratoga Sa-1100 4/30 64.15 +10.71 Suffolk S1806 4/28 54.83* - .48 Suffolk S1810 4/28 51.22* + .26 Suffolk S1812 4/21 47.29* + .43 Suffolk S8833 4/29 17.51* + 1.17 * Water level in feet below land-surface datum unless noted with * which indicates reference to sea level. Note: Data for Cu-10, Cm-46, Cn-12, C-102, M-178, Oe-151, Og-23, Sb-472, S4271, S5517, and Wo-4 unavailable.
