Monday, Aug. 8, 2022 - EGLE News Release: Additional tests don't detect hexavalent chromium in Huron River system; do-not contact recommendation remains in effect​. Highlights to note from the release include:  

*Testing conducted over the weekend by EGLE did not detect the presence of hexavalent chromium in the Huron River system downstream of a chemical release. On Saturday, EGLE crews tested 55 locations throughout the river system from Barton Pond upstream to Wixom. None of the 75 samples tested from those locations had detectable levels of either hexavalent chromium or total chromium.

*Of 144 water samples collected throughout 42 river miles since the release, three came back with detections of hexavalent chromium – two detections in Milford’s Hubbell Pond and one in the middle of Kent Lake. The Kent Lake detection, completed by lab analysis late Friday – was 5 parts per billion (ppb) – just at the detectable limit of 5 ppb. The two Hubbell Pond detections were 11 and 9 parts per billion. All three were at or below values to protect aquatic life.* 

*Investigators are evaluating test results from wastewater solids that were sequestered at the Wixom Wastewater treatment plant that appear to have trapped chromium, including hexavalent chromium, and of a carbon filtration system at Tribar that may have trapped the hexavalent chromium before it was discharged to the wastewater plant.

*The MDHHS recommendation remains in place for people and pets to avoid contact with the Huron River water between North Wixom Road in Oakland County and Kensington Road in Livingston County.

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Thank you,
City of Ann Arbor Communications
[email protected] 
www.a2gov.org/news  
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