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POLYCYCLIC AROMATIC <br />HYDROCARBONS (PAHS~ <br />IN WET POND SEDIMENTS <br />Contributed by Scott Kyser <br />(Contact: John Gulliver at gu11i003@umn.edu or <br />Ray Hozalski at hozal00l @umn.edu) <br />Funded by Minnesota Pollution Control Agency <br />High levels of Polycyclic Aromatic Hydrocarbons (PAHs) <br />have been found in many Stormwater pond sediments in the <br />Minneapolis/St. Paul metro area. Under MPCA regulations <br />dredged sediments containing high levels of PAHs must be <br />disposed of in a landfill which is prohibitively expensive for <br />many municipalities. The potential to remediate PAH con- <br />taining sediments through composting techniques is being <br />investigated first using aproof-of-concept benchtop experi- <br />ment and later an outdoor field size experiment. The goal of <br />the project is to design a composting procedure that effec- <br />tively remediates PAH containing sediments to lower levels <br />so that they can be disposed of more cost-effectively. <br />,r <br />~,; ~± <br />' t ~ =~~ .ltl-~. ' <br />s ~< <br />k~ ~' r~: <br />is <br />~` l - <br />s <br />Y~ - _.-.r <br />~~.. *,~ <br />~.~ - <br />_' ~ ~.. <br />EVENTS <br />November 5th: (Arden Hills, MN). Design of Stormwa- <br />ter Pollution Prevention Plans (Including Assessment and <br />Maintenance of Stormwater BMPs). (http://www.erosion. <br />umn.edu/courses/schedule.htm) <br />November 5th: Stormwater U (North St. Paul, MN}. <br />Stormwater Pond Management: Easements & Vegetation <br />Maintenance. (http://www.extension.umn.edu/Stormwa- <br />ter/) <br />November 16-20: International Low Impact Development <br />Conference (Seattle, WA). Four Levels of Assessment for <br />LID Practices and Improvements in Infiltration Rates of <br />Compacted Soil with Tillage and Compost. <br />November 17th and 18th: (Medina, MN). Design of <br />Stormwater Pollution Prevention Plans (Including As- <br />sessment and Maintenance of Stormwater BMPs}. (httpa/ <br />www.erosion.umn.edu/courses/schedule.htm) <br />November 17th (Madison, WI) and November 18th <br /> (Kansas City, MO): The changing face of the stormwa- <br /> terindustry. Aseminar hosted by Hydro International, Inc. <br />_~~~ <br /> <br />~'`" <br />~ <br />" <br />The four levels and A new method to test and assess the <br />f <br />d <br />d <br />i <br />, <br />, <br />,, <br />~ hy <br />ro <br />ynam <br />c separators. <br />performance o <br />r November 17-20: American Water Resources Association <br />_- (AWRA} (New Orleans, LA). Assessing Hydrodynamic <br /> Separators under High Water Flow Conditions. <br />:-~ NovemberZOth: MinnesotaPublic WorksAssociationFall <br />` r~'~""° Conference (Brooklyn Center, MN). Storm Water BMPs: <br />- Analysis of Costs and Benefits from a Public Works Per- <br />~`. ~ spective and Do-It-Yourself Worksheet for Members. <br /> <br />:~ „ December 4-6: Minnesota Association of Watershed Dis- <br />_- tricts (MAWD) Annual Trade Show and Meeting (Alexan- <br />~r ' <br />'~ i dria, MN). Poster presentations. <br />t ,~ ~ January 5-7: An International Ferspective on Environ- <br />t t E ~ mental and Water Resources (Bangkok, Thailand}. Evalua- <br /> tion of Hydrodynamic Separators as an Urban Stormwater <br /> BMP, Maintenance of Stormwater Management Practices, <br /> and Assessment of the Stormwater Infiltration and Pollut- <br /> <br />T ant Removal Capacities of Rain Gardens. <br /> <br />IAVf~ [ :~~[`'i.~s7`.` <\~' 5; ~ •T k_~.`trp `, rl3 <br />