USGS Water-Year Summary 2023
05427965 SPRING HARBOR STORM SEWER AT MADISON, WI
LOCATION - Lat 43°04'45", long 89°28'15" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 sec.18, T.7 N., R.9 E., Dane County, WI, Hydrologic Unit 07090001, in city park near the junction of Spring Harbor Drive and University Avenue in Madison.
DRAINAGE AREA - 3.29 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - February 1976 to current year.
GAGE - Water-stage recorder, crest-stage gage, and concrete control. Datum of gage is 855.1 ft above NAVD of 1988.
WATER-QUALITY RECORDS
PERIOD OF RECORD - February 1976 to current year.
PERIOD OF DAILY RECORD - SUSPENDED-SEDIMENT DISCHARGE: Oct. 1991 to current year; CHLORIDE DISCHARGE: Feb. 2014 to current year; TOTAL PHOSPHORUS DISCHARGE: Jun. 2015 to current year; TOTAL KJELDAHL NITROGEN DISCHARGE: Jun. 2015 to current year; SUSPENDED SOLIDS DISCHARGE: Jun. 2015 to current year.
INSTRUMENTATION - Water-quality autosampler since Feb. 1976.