Tap Water Quality Report
Tap water quality in RIDGEWOOD TWP-0251, New Jersey
Tap water in RIDGEWOOD TWP-0251, New Jersey receives a grade of F (42/100) from TapWaterSafety.org. It's served by RIDGEWOOD WATER. The most significant water quality concerns are: PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Perfluorooctanoic acid (PFOA) significantly above health guideline; Arsenic significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in RIDGEWOOD TWP-0251's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving RIDGEWOOD TWP-0251.
PFAS contamination
Severe concernPerfluorononanoic acid (PFNA), Perfluorooctane sulfonate (PFOS) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 3.32 ppt, 3320x above the EWG health guideline of 0.001 ppt.
Perfluorooctanoic acid (PFOA) significantly above health guideline
Moderate concernPerfluorooctanoic acid (PFOA) detected at 20.7 ppt, 230x above the EWG health guideline of 0.09 ppt.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 0.857 ppb, 214x above the EWG health guideline of 0.004 ppb.
EPA compliance record
Official U.S. EPA records for RIDGEWOOD WATER (system ID NJ0251001) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Ground Water Rule | Missed testing or reporting | 06/01/2023 | Open |
| Consumer Confidence Rule | Other (e.g. public notice) | 07/01/2025 | Open |
| Nitrate Rule | Missed testing or reporting | 01/01/2024 | Open |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | Missed testing or reporting | 12/01/2023 | Open |
| Surface Water Treatment Rule | Missed testing or reporting | 09/01/2023 | Open |
| Lead and Copper Rule | Missed testing or reporting | 07/01/2023 | Open |
| Public Notice Rule and Revised PN Rule | Other (e.g. public notice) | 03/02/2022 | Open |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Recommended filters for RIDGEWOOD TWP-0251
Filters matched to the specific contaminants in RIDGEWOOD TWP-0251's water supply.
Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)
$180-$750Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in RIDGEWOOD TWP-0251's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Perfluorooctanoic acid (PFOA) PFAS |
20.7 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | EPA violation |
| Perfluorooctane sulfonate (PFOS) PFAS |
8.54 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | EPA violation |
| Perfluorohexane sulfonate (PFHXS) PFAS |
3.32 ppt | 0.001 | 10.0 | — | — | — | — | 3320× over |
| Arsenic Heavy metal |
0.857 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 214× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
22.7 ppb | 0.15 | 80.0 | 100 | — | — | — | 151× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
6.87 ppb | 0.06 | — | — | — | — | — | 115× over |
| Perfluoroheptane sulfonic acid (PFHpS) PFAS |
0.083 ppt | 0.001 | — | — | — | — | — | 83× over |
| Perfluorononanoic acid (PFNA) PFAS |
0.492 ppt | 0.006 | 10.0 | — | — | — | — | 82× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
7.69 ppb | 0.1 | 60.0 | 60 | — | — | — | 77× over |
| Bromodichloromethane Disinfection byproduct |
3.78 ppb | 0.06 | — | — | — | — | — | 63× over |
| Dibromoacetic acid Disinfection byproduct |
1.65 ppb | 0.03 | — | — | — | — | — | 55× over |
| Nitrate Inorganic |
4.2 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 30× over |
| Nitrate and nitrite Inorganic |
4.2 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 30× over |
| Dibromochloromethane Disinfection byproduct |
2.27 ppb | 0.1 | — | — | — | — | — | 23× over |
| Chloroform Disinfection byproduct |
7.91 ppb | 0.4 | — | — | — | — | — | 20× over |
| Chromium (hexavalent) Heavy metal |
0.398 ppb | 0.02 | — | — | — | — | — | 20× over |
| Trichloroacetic acid Disinfection byproduct |
1.93 ppb | 0.1 | — | — | — | — | — | 19× over |
| Dichloroacetic acid Disinfection byproduct |
3.55 ppb | 0.2 | — | — | — | — | — | 18× over |
| Radium, combined (-226 and -228) Radiological |
0.67 pCi/L | 0.05 | 5.0 | — | — | — | — | 13× over |
| Bromoform Disinfection byproduct |
1.31 ppb | 0.5 | — | — | — | — | — | 2.6× over |
| Uranium Radiological |
0.33 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | Below guideline |
| Barium Heavy metal |
381.7 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Chlorate Disinfection byproduct |
70.9 ppb | 210.0 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.0433 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Vanadium Other |
0.72 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
2.38 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.557 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
8.45 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Tetrachloroethylene (perchloroethylene) Volatile organic compound |
0.00046 ppb | 0.06 | 5.0 | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
5.52 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
5.49 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
4.5 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
2.84 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
0.847 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Strontium Radiological |
0.336 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethane Volatile organic compound |
7.1e-05 ppb | 3.0 | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.00563 ppb | — | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
0.974 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.00157 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Lithium Other |
2.36 ppb | — | — | — | — | — | — | Below guideline |
| Nitrite Inorganic |
0.00214 ppm | — | 1.0 | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from RIDGEWOOD WATER.