The pollution that lies beneath

  • Updated: September 15, 2007 - 5:06 PM

EDINA PLUME

Location: Edina, Hopkins, St. Louis Park

Pollutant: Vinyl chloride

Description: Edina shut down a city well in 2003 after the chemical was detected. Plume covers an 8.8-square-mile-area; part of it is under a former wood-treatment site (2), however the source of vinyl chloride is unknown.

Reilly Tar & Chemical plume

Location: St. Louis Park, Hopkins

Pollutants: PAHs

Description: Chemicals from a wood preservative plant (1917-1972) have required carbon filtration since 1986 at two affected city wells. Plume is stable. Site is now a park.

South Minneapolis arsenic site

Location: Minneapolis

Pollutant: Arsenic

Description: Former pesticide operations (1938-1968) left arsenic in a 23-acre area of groundwater. Soil was contaminated over a broader area.

Shoreham Yard -- west plume

Location: Minneapolis

Pollutant: PCP

Description: Wood tie treatment (1915-1972) at Soo Line rail yard contaminated groundwater over a 70-block area.

Shoreham Yard -- east plume

Location: Minneapolis

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