LOCATION.--Lat 42°05'00", long 90°37'58"
referenced to North American Datum of 1927, in NE 1/4 NW 1/4 SE 1/4
sec.17, T.84 N., R.3 E., Jackson County, IA, Hydrologic Unit
07060006, on right bank 10 ft downstream from bridge on State Highway
62, 2.0 mi northeast of Maquoketa, 900 ft upstream from Prairie
Creek, 2.2 mi downstream from North Fork Maquoketa River, and 27.6 mi
upstream from mouth. (map)
DRAINAGE AREA.--1,553 mi2.
SURFACE-WATER RECORDS
PERIOD OF RECORD.--Discharge records from September 1913 to
current year. Prior to October 1939, published as "below North
Fork near Maquoketa". Prior to October 1930, monthly mean
discharge for some periods published in WSP 1308.
REVISED RECORDS.--WSP 405: 1914. WSP 1438: Drainage area. WSP
1508: 1914-17, 1919-25, 1926 (M), 1929, 1933-34 (M), 1943.
GAGE.--Water-stage recorder. Datum of gage is 625.96 ft above
National Geodetic Vertical Datum of 1929. Prior to July 14, 1924,
non-recording gage; prior to October 1, 1972, at site 300 ft upstream
from bridge on State Highway 62 at datum 10.00 ft higher.
REMARKS.--Minor diurnal fluctuations due to operations of power
plant located 4.0 mi upstream.
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Water years 1978-1981, 1995.
PERIOD OF DAILY RECORD.--
SPECIFIC CONDUCTANCE: Daily instantaneous values collected in
conjunction with suspended-sediment samples, April 1978 to December
1981, October 1994 to September 1997, April 2000 to September 2004,
records fragmentary.
WATER TEMPERATURE: Daily instantaneous values collected in
conjunction with suspended-sediment samples, April 1978 to December
1981, October 1994 to September 1997, April 2000 to September 2004,
records fragmentary.
SUSPENDED-SEDIMENT CONCENTRATION AND DISCHARGE: April 1978 to
December 1981, October 1994 to September 1997, April 2000 to
September 2004.
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