USGS Water-Year Summary 2019
06604000 Spirit Lake near Orleans, IA
LOCATION - Lat 43°28'11", long 95°07'25" referenced to North American Datum of 1927, in NE 1/4 SE 1/4 NW 1/4 sec.20, T.100 N., R.36 W., Dickinson County, IA, Hydrologic Unit 10230003, 2.3 mi upstream from lake outlet, and 2.3 mi northwest of Orleans.
DRAINAGE AREA - 75.6 mi².
PERIOD OF RECORD - Stage-only records from May 1933 to September 1975 (fragmentary), April 1990 to current year. Prior to October 1949, published as "at Orleans".
GAGE - Water-stage recorder. Datum of gage is 1,387.25 ft above National Geodetic Vertical Datum of 1929, 90.00 ft above Iowa Lake Survey datum, and 14.15 ft below crest of spillway. Prior to July 6, 1950, non-recording gage or water-stage recorder at various sites near outlet, all at same datum. Discharge record collected from May 2, 2019 to June 1, 2019 when discharge was discontinued at site.
PERIOD OF DAILY RECORD -
WATER TEMPERATURE: Daily minimum/maximum, November 1968 to September 1975, records fragmentary. Daily mean, October 2011 to current year, records fragmentary.