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2015 Annual Report • Public Works Department • St. Anthony Village, Minnesota <br /> <br /> <br /> <br />10 <br /> <br />St. Anthony Stormwater Research Facility <br />This project is located just south of the St. Anthony City limits adjacent to CSAH 88 in the City <br />of Minneapolis. This project is a cooperative project between the Mississippi Watershed <br />Management Organization (MWMO), Minneapolis and St. Anthony Village. Financing for this <br />project has been provided by the MWMO. <br />The Research Facility began construction in 2015 and is designed to have a primary treatment <br />component consisting of a swirl chamber and flow controls to settle and trap particulate matter, <br />floating trash, and debris from stormwater. The facility will also have a secondary treatment <br />designed to remove the soluble pollutants from stormwater. The secondary treatment system is <br />a key component of the research site to help determine the effectiveness of available and <br />emerging treatment technologies such as iron sand filtration, filter media with activated <br />alumina, alum flocculation, ionization, ozone, and other future technologies. New technologies <br />can be plugged into the system and monitored for their effectiveness at pollutant removal and <br />cost for operation for treating 600 acres of urban drainage. <br />This project is anticipated to remove 63% of annual Total Suspended Solids (TSS) and 47% of <br />the Total Phosphorus (TP) from stormwater annually. Pollutant reduction goals where targeted <br />based on a detailed flowrate assessment using 5 years of monitoring data collected by the <br />MWMO.