Photos St Louis Dam that forms reservoir on the south side of which Michigan Chemical built it’s plant Early Michigan Chemical St. Louis factory Late 1940s DDT production for State Department Michigan Chemical – Velsicol Chemical plant about 1970 Michigan Chemical looking east – note river contamination Shooting cows in mid-1970s after contamination with PBB Michigan Chemical from Pine River Burn Pit in “operation” during 1970s. Across river from plant site. Demolition of the Michigan Chemical-Velsicol plant about 1980; to be buried on the old plant site. Former plant site around 1990 with debris (and waste chemicals) buried under clay cap Tombstone placed on former plant site warning of ‘forever’ contamination. Fish tumors in mid-1990s triggered renewed Superfund clean-up efforts. 1999 Emergency Removal of worst sediments Dredging contaminated sediment 2001 How coffer dam worked to dry-out river bottom Emergency removal of contaminated sediment begins in 2003 2004 dredging, north side of river 2005 dredging behind St. Louis dam Removing radioactive waste at Breckenridge site Testing dead robin in town Emergency fence around hot spots killing the birds Task Force Chair, Jane Keon, and City Manager, Bob McConkie, by bench installed to challenge tombstone Dumping clean soil around formerly contaminate home near old plant site Community Members Visiting Velsicol Superfund Site – Thermal Remediation Oct. 2019 Thermal destruction of contaminants under cap 2019 Our dream? Pine River at west end of county