Water test finds tap water at risk of toxic metal contamination
The Minneapolis Laboratory of Water and Wastewater (LWHW) has found that tap water is at risk for a potentially toxic metal that can be used in the manufacture of aluminum alloy parts, a key component of high-performance vehicles.
The LWHW released a test results on April 10 that show tap water samples collected at the Minneapolis lab are contaminated with a rare type of metal called tin.
Lead levels in the water were lower than levels found in the surrounding surrounding groundwater, which is more than 1,000 times higher than normal, the test showed.
The Minnesota Department of Health and Social Services, the state environmental health department and the University of Minnesota conducted the test.
The test results come after LWHS began monitoring the tap water in Minneapolis as part of a larger testing effort.
The agency had previously tested water in five areas of the city.
“The test result indicates that a small amount of the tap-water sample has exceeded the allowable lead levels in Minneapolis, and that additional tests are required to determine if this is the cause of the lead poisoning,” said Jim Zwilling, the director of the LWH W-9 laboratory.
“We need to take action now to remove the toxic element and protect the environment,” Zwill said.
Lead levels in water samples taken in the five Minneapolis areas exceeded the federal lead-contaminated drinking water limit for children under 10, which was 1,200 parts per billion.
Lead-contamination tests have found that water from two Minnesota lakes has exceeded this level, while the state’s three lakes have exceeded 1,300 parts per trillion.
The Minnesota Department for Environmental Health and Environment is currently monitoring water in four of the five areas, and said the agency will continue to monitor the tap test results.
LWH officials said in a statement that they believe the problem in Minneapolis is isolated, but that additional testing is needed to determine the source of the problem.