Drinking water quality · 2024
· Verified
· PWSID NY5903465
What's in Yonkers, NY tap water
Only 9 of 27 core regulated contaminants were reported for Yonkers, NY. What was measured is not clean — but most of the picture is missing.
- !3 contaminants at or above a federal limit — worst is Turbidity at 1.5x
- !1 contaminant within 20% of a limit
- !9 of 27 core regulated contaminants reported — 18 never appear in this report
- ✓No open federal violations
+How this score is calculated
Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.
- −51 contaminants at or above a federal limit
- −4 contaminants within 20% of a limit
- −0 open health-based violations
- −0 open monitoring / reporting violations
- −0 health-based violations resolved in the last 5 years
- −16 core regulated contaminants never reported (9/27)
A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.
Full grading methodology, constant for constant →What to worry about
- Turbidity1.5× the federal limit1.5 NTU · limit 1 NTU
High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.
higher than 90% of U.S. systems
- Fluoride1.3× the federal limit5 mg/L · limit 4 mg/L
Beneficial at low levels, but long-term exposure above the federal limit can cause bone disease and tooth mottling.
higher than 95% of U.S. systems
- HAA51.2× the federal limit11.8–74.3 ug/L · limit 60 ug/L
Long-term exposure above the federal limit is associated with an increased cancer risk.
higher than 95% of U.S. systems
- TTHM81% of the federal limit25.2–64.7 ug/L · limit 80 ug/L
Long-term exposure above the federal limit is linked to liver, kidney, and central-nervous-system effects and increased cancer risk.
higher than 85% of U.S. systems
+22 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Chlorine Free | 0.69–2.36 mg/L | 4 mg/L |
| Lead | 0.00714 mg/L | 0.015 mg/L |
| PFOA | 1.9 ng/L | 4 ng/L |
| PFOS | 1.9 ng/L | 4 ng/L |
| Copper | 0.0425–0.28 mg/L | 1.3 mg/L |
| Dehp | 0.85 ug/L | 6 ug/L |
| Nitrate | 0.105 mg/L | 10 mg/L |
| Barium | 14.1 ug/L | 2000 ug/L |
| Chloride | 12.7 mg/L | — |
| Sulfate | 3.72–3.82 mg/L | — |
| Aluminum | 17.1 ug/L | — |
| Iron | 39 ug/L | — |
| Manganese | 8.4–23.2 ug/L | — |
| Nickel | 0.29 ug/L | — |
| Sodium | 9.99 mg/L | — |
| Zinc | 1.15 ug/L | — |
| PFAS | 1.9 ng/L | — |
| Alkalinity | 12.1–23.8 mg/L | — |
| Color | 5 | — |
| pH | 6.97–7.8 | — |
| Specific Conductance | 73.6–110 uS/cm | — |
| Temperature | 4–21 | — |
What this report doesn't tell you
18 of the 27 contaminants a community water system normally reports do not appear anywhere in Yonkers, NY's data. Absent is not the same as absent-from-the-water — it means nobody published a number.
+Full detail: PFAS testing, water source, historical monitoring, and the federal violation record
Where your water comes from · EPA SDWIS
Yonkers, NY buys its drinking water from WESTCHESTER COUNTY WD #1, GREENBURGH CONSOLIDATED WD #1, and 1 more.
Source
Treatment
- WATER TREATMENT PLANT CRISFIELD LS
- WATER TREATMENT PLANT YONKERS
- WATER TREATMENT PLANT TUCKAHOE ROAD LS
- + 3 more
Distribution
Also buys water from WESTCHESTER COUNTY WD #1, GREENBURGH CONSOLIDATED WD #1, and 1 more.
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Treatment technique violationHealth-based2 violations on record · most recent May 2015resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗