Water Quality in Port Washington, NY: 18 Violations — Grade B
Grade B · Score 81/100 · 2 water systems · Updated 2026-05-03
Port Washington'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
Federal EPA data for Port Washington, NY shows 18 water compliance events in the record — the table below identifies system names and violation types.
Water Quality Map: Port Washington, NY
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Water Quality by ZIP Code in Port Washington
Water quality varies across Port Washington's 6 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 11050 | C | 68 | 3 | 3 | View report → |
| 11052 | B | 83 | 3 | 3 | View report → |
| 11054 | B | 83 | 3 | 3 | View report → |
| 11051 | B | 84 | 3 | 3 | View report → |
| 11053 | B | 84 | 3 | 3 | View report → |
| 11055 | B | 84 | 3 | 3 | View report → |
Water Quality Overview
Port Washington, New York receives a water quality grade of B with an overall score of 81 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 2 water systems serving Port Washington have accumulated 18 EPA violations, including 18 health-based violations. These violations are tracked across 6 ZIP codes serving approximately 36,900 people.
What Grade B Means
A grade of B indicates good compliance with EPA drinking water standards. While not perfect, Port Washington'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 Port Washington water systems is 0.0020 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 80% of homes built before 1986, Port Washington 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 Port Washington
Port Washington is served by 2 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 36,900 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 Port Washington
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
Port Washington vs. Nearby New York Cities
How Port Washington's water quality compares to similar cities in New York:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Port Washington | B | 18 | 2 | 36,900 |
| Yorktown Heights | C | 5 | 5 | 36,902 |
| Plattsburgh | B | 12 | 5 | 37,028 |
| Rome | B | 16 | 3 | 36,485 |
Water Quality by ZIP Code in Port Washington
Water quality varies across Port Washington's ZIP codes. The table below shows the worst-scoring and best-scoring areas:
| ZIP Code | Score | Grade | Violations | Health-Based |
|---|---|---|---|---|
| 11050 | 68 | C | 3 | 3 |
| 11052 | 83 | B | 3 | 3 |
| 11054 | 83 | B | 3 | 3 |
| 11051 | 84 | B | 3 | 3 |
| 11053 | 84 | B | 3 | 3 |
| 11055 | 84 | B | 3 | 3 |
Common Questions About Port Washington Water
These are the most common questions residents search for about water quality in Port Washington, New York:
Is Port Washington water hard or soft? Water hardness varies by source. Port Washington's 2 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Port Washington tap water? Port Washington's water receives a grade of B (81/100). There are 18 health-based violations — consider filtration.
What is the best water filter for Port Washington? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Port Washington vs. New York Average
Understanding how Port Washington 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 Port Washington.
ZIP Codes in Port Washington
Port Washington spans 6 ZIP codes. The ZIP with the lowest water quality score is 11050. 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.