Last Updated: July 15, 2021
EGLE Site Lead:
Several individual PFAS sites have been identified in the Oscoda area and near the former Wurtsmith Air Force Base (WAFB). Many of the sites were identified when the department of Environment, Great Lakes and Energy (EGLE) initiated sampling activities in areas where PFAS use or disposal was suspected. Other sites were found by area-wide residential well sampling efforts and investigations completed to help understand where PFAS was being found in groundwater community wide. EGLE's contractor also conducted sampling to better understand potential impacts from the former WAFB. Because the Oscoda Area and former WAFB investigation activities are somewhat intertwined, please visit the Former WAFB page at Michigan.gov/Wurtsmith for more information.
The Oscoda Area PFAS sites identified by EGLE's investigation efforts include:
Details regarding each of these sites are provided and retained under their respective timelines below.
Type of Sample
Date Sampled (or range)
Number of Sample Results Received
Number of Samples above Criteria*
|Groundwater Monitoring Wells||July 2020 - April 2021||119||43|
|Drinking Water Wells||January 2020||8||0|
|Surface Water||July 2020 - April 2021||4||0|
* Residential well and groundwater monitoring well results on this table were collected by EGLE and are compared to EGLE's Part 201 criteria for 7 PFAS compounds: PFOS (16 ppt), PFOA (8 ppt), PFNA (6 ppt), PFHxS (51 ppt), PFHxA (400,000 ppt), PFBS (420 ppt), and HFPO-DA (370 ppt).
* Surface water samples are compared to Rule 57 non-drinking water values of 12 ppt for PFOS and 12,000 ppt for PFOA.
Additional sampling data can be found on the Former Wurtsmith Air Force Base site page.
Residential Well Alternate Water Information
DHHS is offering drinking water well retesting to Oscoda-area residents whose wells were previously tested for PFAS or who were offered drinking water filters, or both. There is no charge for the testing.
Testing is currently underway and DHHS is contacting residents by letter and by phone to schedule water collection appointments. Seasonal residents who are away for the winter can schedule an appointment at a later date.
The goal of the repeat testing is to:
DHHS will be retesting these drinking water wells in coordination with EGLE, and DHD2. Residents who have questions about this PFAS testing effort or who would like to schedule an appointment can call the DHHS Drinking Water Hotline at 844-934-1315.
Upcoming Community Engagement