A86/100
NORWALK FIRST TAXING DISTRICT — Water Quality Report 2026
Serving 40,256 people · Connecticut
Water Source
Surface Water
County
—
System ID
CT1030011
Violations
3
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.004 µg/L | 0.004 µg/L | Over Limit |
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 30, 2021 – August 23, 2021Rule: Ground Water 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 NORWALK FIRST TAXING DISTRICT
Is NORWALK FIRST TAXING DISTRICT water safe to drink?
NORWALK FIRST TAXING DISTRICT water receives a grade of A (86/100), which is considered excellent. Out of 69 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has NORWALK FIRST TAXING DISTRICT detected?
69 contaminants were tested in NORWALK FIRST TAXING DISTRICT's water. Notable contaminants include PFOA, Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does NORWALK FIRST TAXING DISTRICT have any EPA violations?
Yes, NORWALK FIRST TAXING DISTRICT has 3 EPA violation(s) on record, with the most recent in 2021. Violation types include MR, Other.
How many people does NORWALK FIRST TAXING DISTRICT serve?
NORWALK FIRST TAXING DISTRICT serves approximately 40,256 people, Connecticut. The system provides water to 4 communities: New Canaan, Norwalk, Westport, Wilton.
What type of water does NORWALK FIRST TAXING DISTRICT provide?
NORWALK FIRST TAXING DISTRICT 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 CT1030011.
How does NORWALK FIRST TAXING DISTRICT compare to other utilities in Connecticut?
NORWALK FIRST TAXING DISTRICT scores 86/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Connecticut state page for a full comparison of water systems.