Kalamazoo, Michigan · 35 industrial users on record · 18 sampled for PFAS · 7 above 12 ng/L PFOS
In short
Kalamazoo Water Reclamation Plant in Kalamazoo treats 24.94 MGD and receives process wastewater from 35 industrial users on record in its pretreatment programme, led by metal finishing and plating (8) and automotive, metal and equipment manufacturing (6). 9 are categorical users under federal pretreatment standards. 18 of them have been sampled for PFAS (21 samples, 2023–2024); 7 had a sample with PFOS above the 12 ng/L screening level.
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.
| # | Industrial user | Industry | Type | Highest PFOS | Latest PFOS | Samples |
|---|---|---|---|---|---|---|
| 1 | Autumn Hills RDF (WM) · Zeeland Township | Landfills and waste management | Categorical | 400 ng/L33× · Nov 2023 | 160 ng/LMar 2024 | 2 |
| 2 | Northern Oaks RDF Landfill (WM) · Harrison | Landfills and waste management | Categorical | 280 ng/L23× · Nov 2023 | 220 ng/LJun 2024 | 2 |
| 3 | WKW Extrusion - Erbsloeh Aluminum Solutions · Portage | Metal finishing and plating | Categorical | 185 ng/L15× · Aug 2023 | 185 ng/LAug 2023 | 1 |
| 4 | Graphic Packaging Int-Mill - 1500 North Pitcher Street · Kalamazoo | Paper and packaging | Categorical | 150 ng/L13× · Oct 2023 | 150 ng/LOct 2023 | 1 |
| 5 | Cork Street Landfill (MDS/MDS2) · Kalamazoo | Contaminated sites and remediation | — | 94 ng/L7.8× · Oct 2023 | 94 ng/LOct 2023 | 2 |
Unlock 30 more industrial users of this plant
For every industrial user of Kalamazoo Water Reclamation Plant: 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 Kalamazoo Water Reclamation Plant, ordered by their highest PFOS sample; the first 5 of 35. Source: PFAS sampling reports that treatment plants file with EGLE under the IPP PFAS Initiative (MiEnviro Portal), extracted by Klarifi.
| Industry | Industrial users |
|---|---|
| Metal finishing and plating | 8 |
| Automotive, metal and equipment manufacturing | 6 |
| Chemicals, plastics and petroleum | 5 |
| Landfills and waste management | 4 |
| Contaminated sites and remediation | 3 |
| Laundries | 3 |
The largest groups, from each user's NAICS code.
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.