Gilkey Creek

Gilkey Creek is a site which reflects known PFAS levels. Based on environmental and health concerns, further review and possible action may be necessary to best protect public health. More details about this location will be made available as soon as possible.

  • Gilkey Creek is a tributary to the Flint River and drains parts of Genesee County, including areas from the cities of Burton and Flint.There is a fish consumption advisory on the Flint River for PFOS.
  • In June of 2017, the DEQ became aware that Gilkey Creek had elevated levels for PFOS compared to other surface waters in the watershed.
  • Follow-up investigative inspections of facilities and surface waters within the suspected source area were conducted by the DEQ on October 30, 2017 and December 18, 2017.
  • Surface water results confirm that PFOS is elevated in Gilkey Creek within the City of Flint, east of Center Road, to the discharge point of the creek to the Flint River.
  • Based on the sample results, potential sources have been identified and the DEQ is in the process of investigating those sources further.Potential sources include an industrial site where AFFF was used to put out a fire; a former automotive manufacturing facility where chrome plating was conducted (including the location of their former pretreatment system and sludge/waste disposal area); and a former landfill that is suspected to have accepted automotive manufacturing waste.
  • On January 11, 2018, a Type II non-community well supply serving Applewood Estates – Ruth Mott Foundation was sampled approximately 1 mile west of the suspected source area and downstream of Gilkey Creek.Samples from the well were non-detect for PFOS.
  • To date, 10 surface water samples have been taken and 10 results have been received.
  • Four samples from monitoring wells associated with the landfill were taken in April 2018.Those results have not yet been received.
  • Surface water data is shown in the table below.

# Non-Detect PFOA

#ND – standard for PFOA of 420 ppt

# > standard PFOA (420 ppt)


Highest value PFOA


# Non-Detect PFOS

#ND – standard for PFOS of 11 ppt

# > standard for PFOS of 11 ppt


Highest value PFOS in ppt