USGS Water-Year Summary 2023
04087088 UNDERWOOD CREEK AT WAUWATOSA, WI
LOCATION - Lat 43°03'17", long 88°02'46" referenced to North American Datum of 1983, in SW 1/4 NW 1/4 sec.20, T.7 N., R.21 E., Milwaukee County, WI, Hydrologic Unit 04040003, 325 ft east of highway 100 on right bank, 0.4 mi upstream of the Chicago, Milwaukee, St. Paul and Pacific Railroad bridge, 0.2 mi downstream from the Mayfair Rd. (Hwy 100) bridge, on Milwaukee County Park Commission property, at Wauwatosa, and 1.6 mi upstream from mouth. Water quality data was collected here from February 11, 2010 to present.
DRAINAGE AREA - 18.1 mi².
- WDR WI-77-1: Drainage area. WRD WI-85-1: 1984. WRD WI-94-1: 1993(M). WRD WI-98-1: 1978(M, date).
PERIOD OF RECORD - November 1974 to November 1979, July 1980 to current year. Unpublished daily discharge records from November 1974 to February 1975 in District files.
GAGE - Oct. 3, 2016 to present: Water-stage recorder and crest-stage gage. Datum of gage is 683.51 ft NAVD88. Oct. 1 to Feb. 22, 2010: Water-stage recorder and crest-stage gage at site, 1970 ft upstream from prior location. Datum of gage is 680.0 ft above NAVD of 1988 (Southeastern Wisconsin Regional Planning Commission benchmark). From Feb. 23, 2010 to Oct. 1, 2011 it was at 683.5 NAVD88. Prior to Sept. 10, 1993, the orifice was located 10 ft downstream from Chicago, Milwaukee, St. Paul and Pacific Railroad bridge at datum 690 (from topo map). From Sept. 10, 1993 to Feb. 28, 2009 the orifice was located 30 ft upstream from the railroad bridge at 683.5 NAVD88. From March 1, 2009 to February 22, 2010 the orifice was located 100 ft downstream from the railroad bridge (below a channel drop) at 678.7 NAVD88.
PERIOD OF RECORD - February 2010 to November 2015.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: February 2010 to November 2015.
SPECIFIC CONDUCTANCE: February 2010 to November 2015.
DISSOLVED OXYGEN: February 2010 to November 2015.
TURBIDITY: February 2010 to November 2015.
INSTRUMENTATION - Stage activated water-quality sampler: February 2010 to November 2015. Continuous water quality monitor with water temperature, dissolved oxygen, specific conductivity, and turbidity sensors: February 2010 to November 2015.