Water Quality in Yonkers, NY: No Violations — Grade B
Grade B · Score 82/100 · 1 water system · Updated 2026-05-03
Yonkers's water is mostly safe. Minor violations exist but are primarily monitoring-related.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Across all 1 water system serving Yonkers, NY, federal monitoring data documents zero EPA violations — no MCL exceedances, no monitoring lapses, no enforcement actions anywhere in the compliance history.
Water Quality Map: Yonkers, NY
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Water Quality by ZIP Code in Yonkers
Water quality varies across Yonkers's 6 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 10703 | B | 75 | 0 | 0 | View report → |
| 10701 | B | 80 | 0 | 0 | View report → |
| 10705 | B | 80 | 0 | 0 | View report → |
| 10710 | B | 80 | 0 | 0 | View report → |
| 10704 | A | 85 | 0 | 0 | View report → |
| 10702 | A | 92 | 0 | 0 | View report → |
Water Quality Overview
Yonkers, New York receives a water quality grade of B with an overall score of 82 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
No EPA violations have been recorded for the 1 water system serving Yonkers. This is a positive indicator, though it does not guarantee the absence of all contaminants — some substances (like PFAS) are not yet fully regulated.
What Grade B Means
A grade of B indicates good compliance with EPA drinking water standards. While not perfect, Yonkers's water systems meet the vast majority of federal requirements. Minor violations may exist but typically relate to monitoring or reporting rather than health-based standards.
Lead Levels
The average 90th percentile lead level across Yonkers water systems is 0.0071 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 88% of homes built before 1986, Yonkers has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Water Systems Serving Yonkers
Yonkers is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 211,569 people across 6 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
How to Check Your Water in Yonkers
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Yonkers vs. Nearby New York Cities
How Yonkers's water quality compares to similar cities in New York:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Yonkers | B | 0 | 1 | 211,569 |
| Oyster Bay | A | 0 | 5 | 217,700 |
| Uniondale | C | 0 | 2 | 178,000 |
| Floral Park | C | 0 | 2 | 163,000 |
Recommended Water Filters for Yonkers
Based on contaminants detected in Yonkers's water supply, these filter types are recommended:
Granular Activated Carbon (GAC, whole-house POE)
- Removes: Trihalomethane (TTHM)
- Effectiveness: 80-99%
- Cost range: $400–$2000
- Certification: NSF/ANSI 53
- Recommended products:
Granular Activated Carbon (GAC, under-sink or whole-house)
- Removes: Haloacetic Acid HAA5
- Effectiveness: 60-80%
- Cost range: $100–$600
- Certification: NSF/ANSI 53
- Recommended products:
Water Quality by ZIP Code in Yonkers
Water quality varies across Yonkers's ZIP codes. The table below shows the worst-scoring and best-scoring areas:
| ZIP Code | Score | Grade | Violations | Health-Based |
|---|---|---|---|---|
| 10703 | 75 | B | 0 | 0 |
| 10701 | 80 | B | 0 | 0 |
| 10705 | 80 | B | 0 | 0 |
| 10710 | 80 | B | 0 | 0 |
| 10704 | 85 | A | 0 | 0 |
| 10702 | 92 | A | 0 | 0 |
Common Questions About Yonkers Water
These are the most common questions residents search for about water quality in Yonkers, New York:
Is Yonkers water hard or soft? Water hardness varies by source. Yonkers's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Yonkers tap water? Yonkers's water receives a grade of B (82/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Yonkers? Based on detected contaminants, a granular activated carbon (gac, whole-house poe) filter is most recommended. See our Water Filter Matcher for personalized recommendations.
Yonkers vs. New York Average
Understanding how Yonkers compares to the broader New York average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Yonkers.
ZIP Codes in Yonkers
Yonkers spans 6 ZIP codes. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.
Frequently Asked Questions
Your Water is Safe — Here's How to Keep It That Way
Grade B is excellent news. Here's what proactive homeowners do to maintain water quality:
Annual Water Testing
EPA recommends annual testing even with clean water. Home test kits: $20-$50. Catches changes before they become problems.
Maintenance Filtration
A basic carbon filter removes chlorine taste and catches emerging contaminants like PFAS that aren't yet fully regulated.
Plumbing Check
Even safe city water picks up lead from home pipes. If your home was built before 1986, a one-time pipe inspection is recommended.