Industrial users of City Of Grand Rapids Wastewater Treatment Plant
Grand Rapids, Michigan · 87 industrial users on record · 12 sampled for PFAS · 11 above 12 ng/L PFOS
In short
City Of Grand Rapids Wastewater Treatment Plant in Grand Rapids treats 33.4 MGD and receives process wastewater from 87 industrial users on record in its pretreatment programme, led by metal finishing and plating (28) and food and beverage (19). 9 are categorical users under federal pretreatment standards. 12 of them have been sampled for PFAS (270 samples, 2023–2024); 11 had a sample with PFOS above the 12 ng/L screening level.
PFAS sampling of the plant's industrial users
- Users sampled
- 12
- of 87 on record
- Above 12 ng/L PFOS
- 11
- 105 of 229 PFOS samples
- Highest PFOS sample
- 46,000 ng/L
- Lacks Industries Inc
- Latest sample
- Aug 2024
- 270 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 87 industrial users
| # | Industrial user | Industry | Type | Highest PFOS | Latest PFOS | Samples |
|---|---|---|---|---|---|---|
| 1 | Lacks Industries Inc · Kentwood | Metal finishing and plating | Categorical | 46,000 ng/L3,833× · Feb 2023 | 13.3 ng/LFeb 2024 | 68 |
| 2 | Algoma Products · Grand Rapids | Chemicals, plastics and petroleum | Categorical | 4,450 ng/L371× · Feb 2024 | 22 ng/LJun 2024 | 6 |
| 3 | FKI Hardware · Kentwood | Contaminated sites and remediation | Significant | 1,890 ng/L158× · Apr 2023 | 1,800 ng/LApr 2024 | 24 |
| 4 | Haviland Enterprises, Inc · Grand Rapids | Chemicals, plastics and petroleum | Significant | 780 ng/L65× · Mar 2023 | 11 ng/LAug 2024 | 30 |
| 5 | Allied Finishing Inc · Grand Rapids | Metal finishing and plating | Categorical | 366 ng/L31× · Jun 2023 | 13 ng/LJun 2024 | 12 |
Unlock 82 more industrial users of this plant
For every industrial user of City Of Grand Rapids Wastewater Treatment 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 City Of Grand Rapids Wastewater Treatment Plant, ordered by their highest PFOS sample; the first 5 of 87. 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 | 28 |
| Food and beverage | 19 |
| Automotive, metal and equipment manufacturing | 14 |
| Chemicals, plastics and petroleum | 13 |
| Other industries | 4 |
| Landfills and waste management | 3 |
The largest groups, from each user's NAICS code.
Industrial users of City Of Grand Rapids Wastewater Treatment Plant: 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.