HCDN: Streamflow Data Set, 1874 - 1988
By J.R. Slack, Alan M. Lumb, and Jurate Maciunas Landwehr
USGS Water-Resources Investigations Report 93-4076


Station 04265000 GRASS RIVER AT PYRITES NY


Description, qualifying comments, and acceptable water years.

Drainage area is 333 sq.mi.                             Datum is 350.61 ft.
Located in hydrologic unit 04150304 at Latitude: 44:31:28N  Longitude: 075:11:48W
Station is in the state of NY (county code 089) and serviced by the NY office.
Channel slope is 25.40 feet/mile
Stream length is 51.80 miles
Mean basin elevation is 1260.00 feet above National Geodetic Vertical Datum
Percent of contributing drainage area covered by 
   Storage: 9.90%     Lakes: 0.71%        Forests: 87.00%     Glaciers: N.A.%
Soil infiltration index is 5.87 inches
Annual precipitation is 40.00 inches
Precipitation intensity is 2.10 inches/24 hour (expected on the average once each two years)
January minimum temperature is 6.50 degrees Fahrenheit
Comments and qualifications on the data:
   Records are unsuitable for analysis at less than monthly resolution due to powerplant regulation of low flow.


Monthly and longer averages for 53 water years are acceptable (all years except partial years).
A water year with acceptable data is indicated by an asterisk in the time line, which spans 1874 through 1988.

                                                   Water year
1     1         1         1         1         1         1         1         1         1         1         1       1
8     8         8         9         9         9         9         9         9         9         9         9       9
7     8         9         0         1         2         3         4         5         6         7         8       8
4-----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5--8
...................................................*****************************************************...........

The streamflow data Daily values, monthly mean values, and yearly mean values of streamflow data are available in tablular form. Select the desired option from the list below.

The data tables do not have column heading for ease of reading into statistical programs. For a detailed description of the format of the data tables, select the corresponding file from the list below.

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