U.S. GEOLOGICAL SURVEY

WATER-RESOURCES CONDITIONS IN

NEW YORK

MARCH 2003




__________________________________________________________________________________________________ U.S. GEOLOGICAL SURVEY, WRD New York District, Troy, NY WATER RESOURCES REVIEW AND CURRENT CONDITIONS STATEMENT FOR MARCH 2003 Prepared April 1, 2003 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 Hudson River at Hadley which was in the normal range. The excessive conditions were the result of above normal temperatures, snowmelt, and rainfall during the second half of March. Adjustments were made to flows at some sites due to ice effect. Extreme ice conditions were reported for five sites in eastern New York and therefore these sites were not included in this report. The total New York City reservoir system was at 101.4 percent of capacity on March 31; normal for this period is 94.8 percent of capacity. Ithaca Subdistrict--Summary Report Provisional streamflow conditions at sites monitored and included in this report for western New York were in the excessive range at all sites. Sites were adjusted for ice where necessary. Coram Subdistrict--Summary Report Mean flow at Connetquot Brook near Central Islip was in the normal range. ___________________________________________________________________________________________

___________________________________________________________________________________________ Provisional Data for March 2003 MEAN FLOW FOR SELECTED GAGING STATIONS Period of record Flow Percent Station (to date) (cfs) Exceedence Conditions 01306460 Connetquot Brook nr Central Islip 1978 28 62 Normal 01312000 Hudson River at Newcomb 1925-87,2002 647 18 Excessive 01318500 Hudson River at Hadley 1921 4,280 30 Normal 01321000 Sacandaga River nr Hope 1911 excessive ice cover 01334500 Hoosic River near Eagle Bridge 1910 e2,500 14 Excessive 01350000 Schoharie Creek at Prattsville 1902 excessive ice cover 01357500 Mohawk River at Cohoes 1917 18,800 6 Excessive 01371500 Wallkill River at Gardiner 1924 excessive ice cover 01372500 Wappinger Cr nr Wappingers Falls 1928 954 7 Excessive 01413500 E Br Delaware River at Margaretville 1937 846 10 " 01420500 Beaver Kill at Cooks Falls 1913 1,620 11 " 01423000 W Br Delaware River at Walton 1950 1,920 7 Excessive 01426000 Oquaga Creek at Deposit 1941-73,2002 unavailable 01502500 Unadilla River at Rockdale 1930-95,2001 3,020 9 Excessive 01503000 Susquehanna River at Conklin 1912 11,700 11 " 01512500 Chenango River nr Chenango Forks 1912 7,450 18 " 01531000 Chemung River at Chemung 1903 10,400 9 " 03011020 Allegheny River at Salamanca 1903 8,080 20 " 04213500 Cattaraugus Creek at Gowanda 1940-98,2000 2,300 10 " 04217000 Tonawanda Creek at Batavia 1944 812 9 " 04221000* Genesee River at Wellsville 1916 1,380 8 " 04230500 Oatka Creek at Garbutt 1945 767 17 " 04234000 Fall Creek at Ithaca 1925 519 17 " 04235250 Flint Creek at Phelps 1960-95,2002 379 11 " 04243500 Oneida Creek at Oneida 1950 625 5 " 04256000 Independence River at Donnattsburg 1942 e440 20 " 04262500 W Br Oswegatchie R nr Harrisville 1916 1,280 13 Excessive 04270200 Little Salmon River at Bombay 1958-95,2002 excessive ice cover 04275500 Ausable River at Au Sable Forks 1910-68,1990 excessive ice cover e Estimated * Includes 04221500-Genesee River at Scio (1916-72) __________________________________________________________________________________________________ MONTHLY MEAN DISCHARGE FOR SELECTED STREAMFLOW STATIONS

__________________________________________________________________________________________________ Provisional Data for March 2003 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 Sa-1100, and S1810 have been affected by changes in ground-water withdrawals or sewering. Water level in feet below land-surface datum unless site noted with * which indicates reference to sea level or ** which indicates water level in feet above land-surface datum. Statistics used for A-654(replacement) are from A-636, those for Cm-622(replacement) are from Cm-46 (adjusted), and those for U-1619(replacement) are from U-405. NOTE: Review of the long-term record for S8833 has shown historical water-level elevations from Dec. 29, 1988 to Dec. 23, 2002 were in error by 1.05 ft. This discrepancy is due to a change in measuring-point elevation at the well that was not accounted for in the computer record. All water-level data for the period in question has now been corrected accordingly. Record Percent County Well No. begins Date Water Level Exceedence Conditions Albany A-654 2002 3/25 8.28 25 Normal Allegany Ag-261 2002 3/26 3.87 - -- Allegany Ag-262 2002 3/26 -0.14 - -- Broome Bm-128 1980 3/25 22.83 30 Normal Broome Bm-129 1985 3/25 67.72 15 Excessive Cattaraugus Ct-121 1984 3/26 5.93 57 Normal Chautauqua Cu-10 1939 3/27 21.60 56 Normal Chemung Cm-622 2002 3/25 22.03 5 Excessive Chenango Cn-12 1975 3/25 3.51 0 Excessive Clinton Cl-145 1992 3/20 23.21 99 Deficient Cortland C-998 2002 3/27 3.61 - -- Delaware D-503 2002 3/27 2.46 - -- Dutchess Du-1009 1967 3/19 12.19 4 Excessive Essex Ex-150 2002 3/12 23.57 - -- Fulton Fu-271 2002 3/10 16.25 - -- Genesee Gs-190 2002 3/27 28.59 - -- Hamilton H-3 1966 3/10 13.82 77 Deficient Lewis L-174 2002 3/20 24.71 - -- Madison M-178 1975 3/27 5.01 15 Excessive Oneida Oe-151 1926 3/25 24.49 68 Normal Ontario **Ot-900 1955 3/31 8.70 54 Normal Ontario Ot-1133 2002 3/31 2.78 - -- Orange O-2271 2002 3/26 5.56 - -- Oswego Ow-5013 2002 3/28 20.24 - -- Oswego Ow-5014 2002 3/27 21.05 - -- Otsego Og-23 1953 3/25 4.49 10 Excessive Rockland Ro-18 1949 3/6 15.77 61 Normal St. Lawrence St-40 1953 3/20 6.81 71 Normal Saratoga Sa-1285 2002 3/25 -0.22 - -- Steuben Sb-472 1965 3/26 4.44 0 Excessive Suffolk *S1810 1976 3/18 48.10 91 Deficient Suffolk *S1812 1982 3/17 43.84 87 Deficient Suffolk *S4271 1946 3/18 11.14 38 Normal Suffolk *S5517 1948 3/24 41.12 72 " Suffolk *S8833 1951 3/17 15.87 63 Normal Sullivan Sv-535 2001 3/26 6.85 - -- Ulster U-1619 2002 3/19 17.22 52 Normal Washington W-533 1974 3/25 4.11 3 Excessive Wyoming Wo-4 1974 3/25 9.79 4 Excessive __________________________________________________________________________________________________ INDEX OBSERVATION WELLS

__________________________________________________________________________________________________ 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 3,512 2,904 2,346 01323500 Great Sacandaga Lake at Conklinville 24,370 18,240 17,040 04295000 Richelieu River (Lake Champlain) at Rouses Point, NY - Elevation in ft above sea level March 31, 2003 97.67 March 31, 2002 96.02 Average (1939-2001) 96.17 Maximum daily 100.68 (1976) Minimum daily 93.63 (1940) __________________________________________________________________________________________________ Provisional Data for March 2003# INDEX STREAMFLOW STATIONS (Reference period 1971-2000)

## Reference period is 1978-2000 ** Excessive e Estimate # Note: Flow statistics based on data collected through March 31, 2003. __________________________________________________________________________________________________ NOTES, DEFINITIONS, ETC. Percent exceedence is, for example, the percentage of November monthly mean discharges for period of record equal to or greater than the current November monthly mean discharge. Statistics for the "Index Streamflow Stations" table are for the 30-year reference period 1971-2000. All other statistics used in report are based on the period of record at the site. Median = 50th percentile, which means that, for the period of record included in the analysis, 50% of the values are greater than the median and 50% are less. Deficient range = values below the 25th percentile - for the period of record included in the analysis, 75% of the values are greater and 25% are less than this value. Excessive range = values above the 75th percentile - for the period of record included in the analysis, 25% of the values are greater and 75% are less than this value. Normal range = values between the 25th and 75th percentiles.
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