F0/100
WESTCHESTER COUNTY WD #3 — Water Quality Report 2026
Serving 6,000 people · New York
Water Source
Purchased Surface Water
County
—
System ID
NY5903482
Violations
59
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.90 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
5
Violations (last 5yr)
0
Unresolved
2
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: November 1, 2023 – November 30, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – March 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – March 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2022 – March 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2021 – December 31, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issued
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About WESTCHESTER COUNTY WD #3
Is WESTCHESTER COUNTY WD #3 water safe to drink?
WESTCHESTER COUNTY WD #3 water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 59 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has WESTCHESTER COUNTY WD #3 detected?
32 contaminants were tested in WESTCHESTER COUNTY WD #3's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does WESTCHESTER COUNTY WD #3 have any EPA violations?
Yes, WESTCHESTER COUNTY WD #3 has 59 EPA violation(s) on record, with the most recent in 2023. Violation types include MON, MR, MCL. 34 are health-based violations.
How many people does WESTCHESTER COUNTY WD #3 serve?
WESTCHESTER COUNTY WD #3 serves approximately 6,000 people, New York. The system provides water to 1 community: Greenburgh (T).
What type of water does WESTCHESTER COUNTY WD #3 provide?
WESTCHESTER COUNTY WD #3 sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is NY5903482.
How does WESTCHESTER COUNTY WD #3 compare to other utilities in New York?
WESTCHESTER COUNTY WD #3 scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our New York state page for a full comparison of water systems.