Meta-filter: 3M filter eliminates 3M chemical from drinking water


[CUNO Inc.] Following a Minnesota Department of Health (MDH) community meeting Tuesday night to discuss 3M’s PFBAs in east-metro municipal drinking water systems, Jon Avice of the South Washington County Bulletin reported that there was “no plan to ask or require 3M to foot the bill for point-of-use water filters,” because of the Department of Health’s new exposure limits for PFBA, or perfluorobutanoic acid, one of a family of chemicals made by 3M in Cottage Grove until 1998.

According to MDH officials, current contamination levels do not require water filters for safe drinking water, and home water filtration is simply an option. It is an option many Cottage Grove residents who are skeptical of the new findings want, but they are finding the costs of the filtration systems cost-prohibitive. Some argue that those filters should be paid for by 3M, the manufacturer of the PFBAs and owner of the landfill from which the chemicals leaked.

An MDH study found that there are three reverse-osmosis filters and one carbon filter that are effective in eliminating PFBA in water. One of them is manufactured by CUNO Inc., which 3M bought for $1.35 billion in 2005. CUNO’s web site advertises 3M’s “fluid thinking” as “the world leader for fluid purification,” which would seemingly make them the solution to their own problem.

There will be more public meetings held by the MDH in Grey Cloud Island Twp., Newport and St. Paul Park tonight, with upcoming meetings in Lake Elmo, Oakdale and Woodbury.