B67/100
Mount Kisco Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 11,187 residents · New York
What's In Mount Kisco's Tap Water?
51
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
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
Water Utility Details
MOUNT KISCO WATER DEPARTMENT
Population Served
11,187
Water Source
Surface Water
System ID
NY5903437
Frequently Asked Questions About Mount Kisco Water
Is Mount Kisco tap water safe to drink?
Mount Kisco, New York tap water receives a grade of B (67/100), which is considered good. Out of 51 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Mount Kisco's water?
Of the 51 contaminants tested in Mount Kisco's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Mount Kisco have any water quality violations?
Yes, Mount Kisco has 10 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, MCL, MR. 5 of these are health-based violations, which are the most serious category.
Do I need a water filter in Mount Kisco?
Mount Kisco water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Mount Kisco's tap water come from?
Mount Kisco's drinking water is sourced from surface water and supplied by MOUNT KISCO WATER DEPARTMENT. The system serves approximately 11,187 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Mount Kisco's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Mount Kisco's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Mount Kisco's water compare to other cities in New York?
Mount Kisco's water quality score of 67/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our New York state page to see how all cities in the state compare.
What should I do if I'm concerned about Mount Kisco's water quality?
If you have concerns about Mount Kisco's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (MOUNT KISCO WATER DEPARTMENT) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.