Drinking water quality · 2024
· Verified
What's in Yonkers, NY tap water
25 contaminants were measured in the Yonkers, NY water system's 2024 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2024
- Contaminants measured
- 25
- Over federal limit
- 1
- Approaching the limit
- 1
- Worst contaminant
- Fluoride
- Service area
- NY
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.
Historical readings · EPA Six-Year Review (2012–2019)
1 contaminant historically over EPA limits in Yonkers, NY
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
HAA5 worst: 2019 | 0.0699 mg/L 1.2× | 0.06 mg/L | '12'13'14'15'16'17'18'19 |
TTHM worst: 2016 | 0.053 mg/L within | 0.08 mg/L | '12'13'14'15'16'17'18'19 |
DBAA worst: 2016 | 0.0013 mg/L | — | '16 |
DCAA worst: 2012 | 0.021 mg/L | — | '12'13'14'15'16'17'18'19 |
MBAA worst: 2016 | 0.0014 mg/L | — | '16 |
MCAA worst: 2012 | 0.0024 mg/L | — | '12 |
TCAA worst: 2012 | 0.03 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMODICHLOROMETHANE worst: 2012 | 0.00441 mg/L | — | '12'13'14'15'16'17'18'19 |
CHLOROFORM worst: 2012 | 0.0468 mg/L | — | '12'13'14'15'16'17'18'19 |
DIBROMOCHLOROMETHANE worst: 2012 | 0.00051 mg/L | — | '12'19 |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 5 mg/LMaximumSystem-wide | 2.2 mg/LMCL | At or above the limit |
| ChlorideA naturally occurring salt compound. | 12.7 mg/LMaximumSystem-wide | 250 mg/LMCL | Within the limit |
| SulfateA naturally occurring mineral from rock and soil. | 3.72–3.82 mg/LRangeSystem-wide | 250 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.105 mg/LMaximumSystem-wide | 10 mg/LMCL | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 1–11.3 ug/LRangeAt the tap | 15 ug/LAction level | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.0425–0.28 mg/LRangeAt the tap | 1.3 mg/LAction level | Within the limit |
| IronA naturally occurring metal common in groundwater. | 39 ug/LMaximumSystem-wide | 300 ug/LMCL | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 14.1 ug/LMaximumSystem-wide | 2000 ug/LMCL | Within the limit |
| ZincA naturally occurring metal that can also enter water from corroding pipes. | 1–1.15 ug/LRangeSystem-wide | 5000 ug/LMCL | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | 12.1–17.1 ug/LRangeSystem-wide | None set | Detected — no federal limit |
| ManganeseA naturally occurring metal from soil and rock. | 8.4–23.2 ug/LRangeSystem-wide | None set | Detected — no federal limit |
| NickelA metal from natural deposits and industrial discharge. | 0.281–0.29 ug/LRangeSystem-wide | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 9.99 mg/LMaximumSystem-wide | None set | Detected — no federal limit |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | 1.9 ng/LReported levelSystem-wide | 4 ng/LMCL | Within the limit |
| PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. | 1.9 ng/LReported levelSystem-wide | 4 ng/LMCL | Within the limit |
| PFAS | 1.9 ng/LReported levelSystem-wide | 10 ng/LMCL | Within the limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.69–1.79RangeSystem-wide | 4MRDL | Within the limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ColorA measure of visible tint in the water. | 5MaximumSystem-wide | 15MCL | Within the limit |
| AlkalinityA measure of the water's capacity to neutralize acids. | 12.1–25.2 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 57.39MaximumSystem-wide | None set | Detected — no federal limit |
| Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content. | 73.6–117 uS/cmRangeSystem-wide | None set | Detected — no federal limit |
| TemperatureThe measured temperature of the water sample. | 4–24RangeSystem-wide | None set | Detected — no federal limit |
| TurbidityA measure of cloudiness from suspended particles in the water. | 1.5 NTUMaximumSystem-wide | None set | Detected — no federal limit |
People also ask about Yonkers, NY's water
+Is Yonkers, NY tap water safe to drink in 2024?
The 2024 Consumer Confidence Report for the Yonkers, NY water utility lists 1 contaminant at or above the federal limit: Fluoride. Whether that means the water is "unsafe" depends on which contaminant, how long the exposure, and individual health factors. The table on this page shows the measured value, the federal threshold, and the regulated statistic used for compliance.
+What contaminants are in Yonkers, NY tap water?
25 contaminants were measured in Yonkers, NY's 2024 Consumer Confidence Report, spanning metals, physical & aggregate, and inorganic chemicals. 15 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Which contaminants exceed federal limits in Yonkers, NY tap water?
One contaminant in Yonkers, NY's 2024 report sits at or above the federal limit: Fluoride (2.3× the limit). The EPA enforces these limits against the regulated reporting statistic — typically a running annual average or 90th percentile — not a one-off sample spike.
+What is the worst contaminant in Yonkers, NY tap water?
The contaminant with the highest measured value relative to its federal limit in the 2024 report is Fluoride, at 2.3× the federal threshold. It belongs to the inorganic chemicals family of contaminants.
+Are any contaminants in Yonkers, NY tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: TTHM. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from Yonkers, NY's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Yonkers, NY's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.