United States The Renco Group's environmental record in the U.S. related to Doe Run provides a good example of this development. In 1998, the EPA placed Renco Group business holdings 10th on the nation's largest polluter list primarily because of emissions from US Magnesium in Utah (formerly MagCorp). (US Magnesium was purchased by Renco in 1989 in the year in which its emissions peaked at 119,000 tons per year.) By 1998, the year the Renco was placed on the EPA list, it had reduced emissions at US Magnesium by 50%. By 2005, the most recent year of data released by the EPA, emissions had been reduced 97%. The suit claimed PCB-laced sludge and dust choked the plant's plumbing, wastewater ponds, landfill and ditches, where contaminants were 12 times the allowed limit for accidental release. The EPA suit, however, remained outstanding until October 2007 when a federal judge ruled against the EPA and the Justice Department and in favor of Renco and MagCorp / US Magnesium. Today, US Magnesium is the third-largest magnesium producer in the world. Its environmental improvements and recent track record have been substantial and include a reduction of emissions by 90% since 2000 (97% since 1989). The energy improvements in US Magnesium's manufacturing process have also caused a net reduction of 100,000 tons per year of
carbon dioxide emissions. and won an MEP award in 2006 for Environmental Consciousness. Another US unit of Renco also faced environmental issues in
Herculaneum, Missouri and has made substantial improvements. Locals in Herculaneum claimed their children were suffering from
lead poisoning traceable to toxic emissions coming from Renco's Doe Run lead smelting plant, which had been in operations locally since 1892. In 2000, the EPA and the Missouri Department of Natural Resources tested area lead levels and ordered Doe Run to clean up locations where lead levels exceeded EPA standards. In 2013, Doe Run shut down its lead smelter, entirely discontinuing emissions in Missouri.
Peru Doe Run, Peru, (a Renco Group holding) operated a smelting plant in
La Oroya, Peru until 2010, that had similar types of environmental challenges to those faced in Herculaneum, but on a larger scale. The La Oroya smelter began operations in 1922 and was operated for many years by Centromin, a Peruvian government agency, without any environmental controls. The smelter was sold to Doe Run in 1997 primarily because the Peruvian government passed a law that required environmental improvement at the business. This improvement was beyond the economic and technical capability of Centromin. As part of the sale to Renco, Centromin agreed to pay to remediate pre-existing (pre-1997) environmental problems and Doe Run Peru agreed to make substantial environmental investments. These investments were estimated to be approximately $100 million at the time of the deal. In the end, Doe Run ended up investing more than $300 million in
environmental remediation during its ownership and was not able to clean up the site to achieve the standards required by Peruvian law. La Oroya was and remains a very polluted site. The
Blacksmith Institute placed La Oroya on its list of ten most polluted places in the world, along with
Chernobyl,
Ukraine. In August 2007, it was reported that air levels of arsenic were 85 times more than the "safe" level, cadmium 41 times, and lead 13 times more. A study by
St. Louis University scientists found that 97 percent of children in La Oroya suffer from mental and physical deficiencies related to their exposure to polluted air. Ultimately, Doe Run Peru was a bad investment for Renco on many counts. Renco received substantial negative publicity regarding its ownership and the environmental problems in La Oroya. The environmental problems were not solved despite huge investment by Renco, and Renco never made any financial profit from its investment. Doe Run Peru is currently in a dispute with the Peruvian government which in part relates to Doe Run's claims that Centromin did not live up to its obligations with regard to cleaning up the pre-existing pollution. ==Philanthropy==