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Alcoa superfund report – remediation to contain/treat groundwater contamination apparently working

on Tue, 09/26/2017 - 21:24   by news

Remediation efforts to prevent contaminated groundwater at Alcoa's Davenport Works from reaching the Mississippi River appear to be working, according to a five-year analysis issued recently (7/28) by the U.S. Environmental Protection Agency (EPA).

The report states the system of wells and pumps around the site are preventing contaminated groundwater from moving offsite. Once captured, the contaminated water is treated to remove the pollutants: polychlorinated biphenyls (PCB's), volatile organic compounds (VOC's), polynuclear aromatic hydrocarbons (PAH's) and metals.

Dumping of sewage into Mississippi River remains common summer occurrence, but system upgrades appear to be reducing frequency, quantities

on Thu, 09/22/2016 - 20:16   by Editor

As Davenport and Bettendorf complete the third year of a court-ordered sewer system improvement program, dumping of raw sewage into the Mississippi River remains an issue during summer months after heavy rains.

However, there are signs the effort to seal leaky sewer lines and fix blockages in riverfront interceptors is reducing the volume of raw and partially treated sewage that is pumped into the river.

EPA reports toxic chemicals released by QC industries fell in 2014; Tyson Foods tops local list

on Fri, 01/22/2016 - 02:28   by Editor

Toxic chemicals released to the environment by metro Quad Cities area industries fell by nearly 20 percent in 2014, according to a new report issued Thursday (1/21) by the U.S. Environmental Protection Agency (EPA).

The top five facilities by total disposal or releases to the environment were: Tyson Fresh Meats, Inc., Joslin; Nichols Aluminum's casting plant, Davenport; Lafarge North America (now Continental Cement), Buffalo; John Deere Harvester Works, East Moline; and Alcoa's Davenport Works, Bettendorf.

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