Contamination of Stormwater Pond Sediments by Polycyclic Aromatic Hydrocarbons (PAHs) in Minnesota
Minnesota Pollution Control Agency
This project will provide notification of the potential for coal tar contamination, establish a storm water pond inventory schedule, and develop best management practices for treating and cleaning up contaminated sediments. The sampling design includes 15 stormwater ponds, 5 each from residential, commercial, and industrial land use areas. Municipalities in the metro area with MS4 permits of stormwater ponds will be contacted to nominate candidate sites for this study. GPS coordinates will be taken at all sampling sites. Sampling of Stormwater Ponds will be conducted by MPCA Environmental Analysis and Outcomes staff. Chemical Analysis performed: ICP-MS Scan of 18 metals, Mercury, Chloride, Percent Moisture, Carcinogenic PAH's, TOC, SVOC's (including phthalate compounds), PFC's, PBDE's, Pyrethroids, Octyphenols, nonylphenols, and nonylphenols ethoxylates. Parent and alkylated PAH's, Laser Induced Fluorescence-LIF, Black Carbon, and Particle Size.