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Hydrology and water quality in the Nederlo Creek Basin, Wisconsin, before construction of two water-retention structures

Water-Resources Investigations Report 79-95

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Abstract

The Nederlo Creek basin in southwest Wisconsin is the proposed site of two structures intended to provide recreation and flood protection. Streamflow is fairly constant at base flow, but rapid changes in discharge occur during periods of snowmelt or heavy rain. Mean annual precipitation is 32.5 inches, and mean annual runoff is 6.4 inches. The water is a hard calcium magnesium bicarbonate type. Dissolved-oxygen concentrations in the stream are lowest during the summer when nighttime lows are generally between 7 and 8 milligrams per liter and daily maximums between 11 and 12.5 milligrams per liter. Considerable diurnal water-temperature fluctuation occurs in summer with daily maximum temperatures occasionally reaching 26 C. Estimates of mean annual total phosphorus and total nitrogen loads fall within the ranges of 0.02 to 0.07 and 0.4 to 0.8 tons per square mile, respectively; mean annual sediment loads range from 13 to 60 tons per square mile. Seventy to 80 percent of the total phosphorus, 35 to 55 percent of the total nitrogen, and 74 to 86 percent of the suspended sediment are transported during periods when surface runoff contributes to streamflow. (Woodard-USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Hydrology and water quality in the Nederlo Creek Basin, Wisconsin, before construction of two water-retention structures
Series title:
Water-Resources Investigations Report
Series number:
79-95
Edition:
-
Year Published:
1979
Language:
ENGLISH
Publisher:
U.S. Geological Survey, Water Resources Division,
Description:
v, 34 p. :ill., maps ;28 cm.
Number of Pages:
39