Dane County Water-Quality Program
Project Number: 9KP41
Project Chief: Kevin Richards
Project Topics: Mississippi River
Cooperators: Capital Regional Area Planning Commission (umbrella organization for several other taxing entities)
Period of Project: 1992-continuing
Dane County and the isthmus at Madison. Surface-Water Quality Monitoring is creating a long-term base of water-quality data is needed for water-resource planning and assessment purposes of the lakes and streams in Dane County.
A long-term base of water-quality data is needed for water-resource planning and assessment purposes of the lakes and streams in Dane County.
The objectives of this program are to collect long-term water-quality data to establish a database, including (1) operating four continuous-record streamflow-gaging stations with automatic water-quality samplers to compute sediment and total-phosphorus loads of selected major tributaries to Lake Mendota, (2) operating one continuous-record streamflow gage on Black Earth Creek, and (3) conducting base-flow water-quality sampling 3 times per year during the open-water season at selected sites on streams throughout Dane County as agreed upon in an annual work plan.
Streamflow-monitoring stations with automatic water-quality samplers are operated on three tributaries to Lake Mendota. Samples for analysis of suspended-sediment and phosphorus concentrations are collected at low flow and during periods when surface runoff is entering the streams. The concentration and streamflow data are used to compute annual suspended-sediment and total-phosphorus loads for the stations. On a rotating basis, various water-quality constituents (field measurements, nutrients, and common ions) are measured six times during the year at base flow of four selected streams in the county.
Streamflow and water-quality data collection at four continuous-record monitoring sites (Pheasant Branch at Middleton, Spring Harbor Storm Sewer at Madison, and Yahara River at Windsor and at SH113 at Madison) continued. Suspended-sediment loads were computed for Spring Harbor Storm Sewer; suspended sediment and total phosphorus loads were computed for Yahara River at Windsor and SH113 and at Pheasant Branch for the 2009 water year. Continuous streamflow monitoring at Black Earth Creek near Black Earth was continued for the year.
Base-flow water-quality sampling at a set of four streams (05406500 Black Earth Creek above Cross Plains, 05427718 Yahara River near Windsor, 05425830 Maunesha River South of USH 151, and 05429280 Nine Springs Creek at Morrland Road for 200. Base-flow sampling will begin at a new set of four streams in the County for 2011.
All streamflow, load, and concentration data were published in the annual data report “Water Resources Data–Wisconsin, Water Year 2009.”
Data is available on the NWIS Web and the WiWSC ADR.