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IV. Sustainability <br />2013 Annual Report · Publc Works Department · St. Anthony Village, Minnesota <br />7 <br />IV. Sustainability <br />ST. CHARLES RAIN <br />GARDEN <br />The City applied for an MWMO mini- <br />grant. We received the grant for $2,000 <br />to use towards the St. Charels bioswale <br />and stormwater education project. Funds <br />were used to install a bio-filtration system <br />into an existing stormwater swale. Mulch, <br />compost and soils will be used to amend <br />the naturally occurring clay soils, and the <br />area will be planted with MN native plants. <br />The plantings will be maintained by the <br />students and volunteers at the school. City <br />of St. Anthony will excavate the site, which <br />will be planted and maintained by students <br />and volunteers. Using existing water quality <br />and stormwater curriculum, students grades <br />6-8 will be educated about stormwater and <br />water quality issues,and will evaluate and <br />assist in maintaining the bioswale. <br />STORMWATER <br />MECHANICAL SEPARATOR <br />MWMO Grant funded Project to be <br />constructed in Summer/Fall 2014 - The <br />Underground stormwater treatment system <br />will divert runoff from the City of St. <br />Anthony and CSAH 88 into a underground <br />storm treatment system. This system will <br />have primary treatment hydrodynamic <br />separator which will utilize gravity and <br />the stormwater flow to settle and trap <br />particulate matter. It will have a secondary <br />treatment system to remove soluble <br />pollutants. The secondary treatment system <br />is intended to act as a research site to <br />help determine effectiveness of available <br />treatment technologies such as alum <br />flocculation, ionization, ozone, iron filtration <br />and other future technologies.