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104 North Kinney Avenue (Mt. Pleasant, Isabella County)

EGLE Site Lead: Jeremy Boothroyd, BoothroydJ@Michigan.gov or 989-891-6932. Content last updated August 24, 2022.

Site Background

104 North Kinney Avenue has been an operating dry cleaner for decades, currently owned by American Cleaners. In 1991, a tetrachloroethylene (PCE) plume was associated with the site. In 2021, following years of inactivity, EGLE began to investigate the surrounding properties. During this investigation, PCE was found at 28,000 ug/L in groundwater on a residential property immediately adjacent to and west of the American Cleaners site and in the sanitary sewer located in front of the dry cleaner. Concentrations of PCE have been found several blocks downgradient of the American Cleaners site. EGLE requested assistance from the EPA in investigating the volatilization to indoor air pathway, as well as installing vapor mitigation systems in buildings deemed necessary.  EGLE conducted PFAS sampling at this site because PFAS has been found in dry-cleaning products used in the industry.

Groundwater in the area is present in several subsurface intervals, or aquifers, which are at 5-8 feet, 12-15 feet and 19-22 feet. The bulk of all contamination is found in the 12-15 feet aquifer, which connects with the lower aquifer in places. Groundwater flows to the northwest, toward the Chippewa River.

104 North Kinney Avenue map

Recent Accomplishments

  • In November 2021, EGLE collected groundwater samples from 17 locations surrounding this site.
  • In December 2021, EGLE received the groundwater sampling results. Nine sample locations (total of 17 samples from various depths) exceeded PFAS clean-up criteria, with the highest result of 160 ppt PFOA compared to 8 ppt.

Next Steps

  • EGLE will continue to work at this site to delineate the groundwater contamination plume. PFAS will be sampled at the sewer outfall to the Chippewa River in the near future.

Residential Wells / Alternative Water Information

  • The city of Mount Pleasant provides municipal water to the area.

Upcoming Community Engagement

  • None scheduled at this time.

Sampling Results Summary

Type of Sample

Date Sampled
(or range)

Number of Sample Results Received

Number of Samples above Criteria

Groundwater Monitoring Wells

November 2021

51

17

* Residential well and groundwater monitoring well results are compared to EGLE Part 201 criteria for 7 PFAS compounds effective 12/21/2020:  PFOS (16 ppt), PFOA (8 ppt), PFNA (6 ppt), PFHxS (51 ppt), PFHxA (400,000 ppt), PFBS (420 ppt), and HFPO-DA (370 ppt).

Sampling Notes

  • None at this time.