B67/100
MOUNT KISCO WATER DEPARTMENT — Water Quality Report 2026
Serving 11,187 people · New York
Water Source
Surface Water
County
—
System ID
NY5903437
Violations
10
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
1
Health-Related
TIER 2Resolved
Failed treatment technique requirements
When: November 1, 2024 – November 30, 2024Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
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 MOUNT KISCO WATER DEPARTMENT
Is MOUNT KISCO WATER DEPARTMENT water safe to drink?
MOUNT KISCO WATER DEPARTMENT water receives a grade of B (67/100), which is considered good. Out of 51 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has MOUNT KISCO WATER DEPARTMENT detected?
51 contaminants were tested in MOUNT KISCO WATER DEPARTMENT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MOUNT KISCO WATER DEPARTMENT have any EPA violations?
Yes, MOUNT KISCO WATER DEPARTMENT has 10 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, MCL, MR. 5 are health-based violations.
How many people does MOUNT KISCO WATER DEPARTMENT serve?
MOUNT KISCO WATER DEPARTMENT serves approximately 11,187 people, New York. The system provides water to 1 community: Mount Kisco (V).
What type of water does MOUNT KISCO WATER DEPARTMENT provide?
MOUNT KISCO WATER DEPARTMENT sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is NY5903437.
How does MOUNT KISCO WATER DEPARTMENT compare to other utilities in New York?
MOUNT KISCO WATER DEPARTMENT scores 67/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our New York state page for a full comparison of water systems.