What amount of TCE in drinking water is safe?

In 2013, MDH developed a Health-Based Value, or guideline, of 0.4 micrograms of TCE per liter. This level of TCE is safe for all people exposed to TCE in drinking water at any time during their life, including pregnant women and their fetuses, infants, children and other sensitive people, including those with impaired immunity.

A level of 2 micrograms per liter of TCE in drinking water protects all people who are exposed for an entire lifetime from cancer. The increased risk for cancer is estimated to be 1 additional cancer case in 100,000 people, which is considered a negligible cancer risk. The level is also safe for healthy adults who are only exposed to TCE after age 18, and protects pregnant women and their developing fetuses from heart defects.

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1. What is TCE?
2. What are the health concerns of TCE in drinking water?
3. What amount of TCE in drinking water is safe?
4. Does Edina have dangerous levels of TCE in its drinking water?
5. Where is the TCE coming from?
6. Should I be concerned about the Washington D.C.-based Environmental Working Group’s report showing TCE in Edina’s drinking water?
7. Does the City do anything to reduce the level of TCE in its water?
8. The Environmental Working Group's report references results of tests in 2011-2015. Can I view more recent tests?
9. Where can I get more information?