Ridgewood Water
PWSID NJ0251001 · Ridgewood, New Jersey · serves 61,700 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 31.4 ppt | 4 ppt | 9/12/2023 |
| PFOA | 31 ppt | 4 ppt | 5/29/2024 |
| PFOA | 30.4 ppt | 4 ppt | 9/11/2023 |
| PFOA | 29.8 ppt | 4 ppt | 3/1/2023 |
| PFOA | 29.8 ppt | 4 ppt | 3/7/2023 |
| PFOA | 29.2 ppt | 4 ppt | 4/30/2024 |
| PFOA | 28.3 ppt | 4 ppt | 9/12/2023 |
| PFOA | 28 ppt | 4 ppt | 9/11/2023 |
| PFOA | 27.8 ppt | 4 ppt | 5/29/2024 |
| PFOA | 27.2 ppt | 4 ppt | 11/14/2023 |
| PFOA | 27 ppt | 4 ppt | 9/12/2023 |
| PFPeA | 26.7 ppt | — | 10/24/2023 |
| PFOA | 25.6 ppt | 4 ppt | 9/26/2024 |
| PFOA | 24.7 ppt | 4 ppt | 3/6/2023 |
| PFOA | 24.7 ppt | 4 ppt | 3/6/2023 |
| PFOA | 24.2 ppt | 4 ppt | 3/5/2024 |
| PFOA | 22.7 ppt | 4 ppt | 9/11/2023 |
| PFOA | 21.5 ppt | 4 ppt | 9/12/2023 |
| PFOA | 21.2 ppt | 4 ppt | 3/6/2023 |
| PFOA | 20.8 ppt | 4 ppt | 3/5/2024 |
| PFPeA | 20.2 ppt | — | 3/1/2023 |
| PFOA | 20.2 ppt | 4 ppt | 3/13/2023 |
| PFOA | 20.1 ppt | 4 ppt | 3/1/2023 |
| PFOA | 19.7 ppt | 4 ppt | 9/12/2023 |
| PFOA | 18.8 ppt | 4 ppt | 9/11/2023 |
| PFPeA | 16.5 ppt | — | 3/4/2025 |
| PFHxA | 16.3 ppt | — | 3/7/2023 |
| PFOA | 15.1 ppt | 4 ppt | 3/7/2023 |
| PFHxA | 14.5 ppt | — | 3/1/2023 |
| PFHxA | 13.9 ppt | — | 3/4/2025 |
| PFOS | 13.8 ppt | 4 ppt | 9/26/2024 |
| PFHxA | 13.8 ppt | — | 9/11/2023 |
| PFOS | 13.7 ppt | 4 ppt | 3/1/2023 |
| PFOA | 13.3 ppt | 4 ppt | 3/4/2025 |
| PFOS | 12.9 ppt | 4 ppt | 9/12/2023 |
| PFPeA | 12.8 ppt | — | 3/7/2023 |
| PFOA | 12.8 ppt | 4 ppt | 6/7/2023 |
| PFPeA | 12.7 ppt | — | 9/11/2023 |
| PFOS | 12.6 ppt | 4 ppt | 3/1/2023 |
| PFHxA | 12.5 ppt | — | 9/11/2023 |
| PFPeA | 12.3 ppt | — | 9/11/2023 |
| PFPeA | 12.1 ppt | — | 9/11/2023 |
| PFOS | 11.7 ppt | 4 ppt | 3/7/2023 |
| PFOA | 11.5 ppt | 4 ppt | 6/7/2023 |
| PFHxA | 11.3 ppt | — | 4/30/2024 |
| PFPeA | 11.1 ppt | — | 3/1/2023 |
| PFPeA | 11 ppt | — | 4/30/2024 |
| PFPeA | 10.9 ppt | — | 9/12/2023 |
| PFHxA | 10.9 ppt | — | 6/7/2023 |
| PFOS | 10.9 ppt | 4 ppt | 4/30/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-04-01 | Lead and Copper Rule | MR | No | Unaddressed |
| 2025-08-20 | E. COLI | MR | No | Unaddressed |
| 2025-07-01 | Consumer Confidence Rule | Other | No | Resolved |
| 2024-06-12 | E. COLI | MR | No | Unaddressed |
| 2024-01-01 | Nitrate | MR | No | Resolved |
| 2023-12-01 | Total Haloacetic Acids (HAA5) | MR | No | Archived |
| 2023-09-01 | Surface Water Treatment Rule | MR | No | Archived |
| 2023-07-01 | Lead and Copper Rule | MR | No | Archived |
| 2023-06-01 | Groundwater Rule | MR | No | Archived |
| 2023-06-01 | Groundwater Rule | MR | No | Archived |
| 2023-06-01 | Groundwater Rule | MR | No | Archived |
| 2023-06-01 | Groundwater Rule | MR | No | Archived |
| 2023-06-01 | Groundwater Rule | MR | No | Archived |
| 2023-06-01 | Groundwater Rule | MR | No | Archived |
| 2023-06-01 | Groundwater Rule | MR | No | Archived |
| 2023-01-15 | Public Notice | Other | No | Resolved |
| 2022-03-02 | Public Notice | Other | No | Resolved |