Industrial users of GLWA Water Resource Recovery Facility
Detroit, Michigan · 229 industrial users on record · 55 sampled for PFAS · 35 above 12 ng/L PFOS
In short
GLWA Water Resource Recovery Facility in Detroit treats 349 MGD and receives process wastewater from 229 industrial users on record in its pretreatment programme, led by metal finishing and plating (57) and automotive, metal and equipment manufacturing (44). 35 are categorical users under federal pretreatment standards. 55 of them have been sampled for PFAS (211 samples, 2023–2024); 35 had a sample with PFOS above the 12 ng/L screening level.
PFAS sampling of the plant's industrial users
- Users sampled
- 55
- of 229 on record
- Above 12 ng/L PFOS
- 35
- 132 of 211 PFOS samples
- Highest PFOS sample
- 2,000 ng/L
- Valicor
- Latest sample
- Nov 2024
- 211 samples in all
12 ng/L is Michigan’s surface water quality value for PFOS and the screening criterion of the initiative; 170 ng/L is the value for PFOA since July 2022. Both apply to what a treatment plant discharges to a river or lake, not to what a factory sends to the sewer. An industrial user above the level has not broken a limit: it is a source the receiving plant has to follow up with sampling, a reduction plan or pretreatment.
5 of 229 industrial users
| # | Industrial user | Industry | Type | Highest PFOS | Latest PFOS | Samples |
|---|---|---|---|---|---|---|
| 1 | Valicor · InksterPFAS pretreatment | Landfills and waste management | Categorical | 2,000 ng/L167× · Apr 2024 | 43 ng/LSep 2024 | 27 |
| 2 | Dana Container, Inc. Tank Cleaning Division · DetroitPFAS pretreatment | Other industries | Categorical | 1,800 ng/L150× · Oct 2024 | 1,800 ng/LOct 2024 | 4 |
| 3 | Woodland Meadows Landfill (WM) · Wayne | Landfills and waste management | Significant | 1,500 ng/L125× · Apr 2024 | 760 ng/LMay 2024 | 8 |
| 4 | Detroit Chrome Electro Forming Company · DetroitPFAS pretreatment | Metal finishing and plating | Categorical | 1,400 ng/L117× · Apr 2024 | 1,400 ng/LApr 2024 | 3 |
| 5 | Marathon Petroleum Company Lp · DetroitPFAS pretreatment | Chemicals, plastics and petroleum | Categorical | 821 ng/L68× · Feb 2024 | 114 ng/LJun 2024 | 8 |
Unlock 224 more industrial users of this plant
For every industrial user of GLWA Water Resource Recovery Facility: discharge flow, federal category, full PFAS sampling history, source documents and contacts. Free with a Klarifi account.
Or let Klarifi Plus run the outreach for you →Industrial users discharging to GLWA Water Resource Recovery Facility, ordered by their highest PFOS sample; the first 5 of 229. Source: PFAS sampling reports that treatment plants file with EGLE under the IPP PFAS Initiative (MiEnviro Portal), extracted by Klarifi.
Industrial users by industry
| Industry | Industrial users |
|---|---|
| Metal finishing and plating | 57 |
| Automotive, metal and equipment manufacturing | 44 |
| Other industries | 27 |
| Food and beverage | 23 |
| Hospitals and public institutions | 20 |
| Chemicals, plastics and petroleum | 19 |
The largest groups, from each user's NAICS code.
Industrial users of GLWA Water Resource Recovery Facility: questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 18, 2026.
Industrial users: PFAS sampling reports that treatment plants file with EGLE under the IPP PFAS Initiative (MiEnviro Portal), extracted by Klarifi. Values are as reported by the receiving plant; a value shared by several compounds in one sample is read as the laboratory’s reporting limit and not counted as a detection. Spotted an error? Tell us and we correct it.