States ›New York ›Westchester County ›Harrison

Harrison, NY Tap Water Quality 2026

Water quality report for Harrison, NY — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Harrison's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Westchester Joint Water Works PWSID: NY5903435 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 3.30 ppb, 22% of the action level and no violations are open. PFAS was sampled but not enough times for a compliance determination.

C

Harrison earns a C for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 3.30 ppb — 22% of the federal action level
PFAS sampled, too few results to judge
4 violations since 2015, 4 health-based
No violations currently open
Harrison's lead level vs. all New York community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 3.30 ppb — 22% of the federal action level
✓ Lower lead than 37% of New York utilities
Population Served
28174
~12000 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
4 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
22% of EPA action level
3.30 ppb
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
125.4% of EPA action level
1,630 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 3.30 ppb, 22% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.061 MG/L 0.060 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.061 MG/L 0.060 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.068 MG/L 0.060 mg/L 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2015 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

4 violations are on record since 2015, of which 4 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Westchester Joint Water Works
PWSID NY5903435
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 28,174
Service connections 12,000
Systems serving this area 3
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Harrison tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 3.30 ppb, 22% of the action level.
Does Harrison water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Harrison? ▼
Westchester Joint Water Works (PWSID NY5903435), one of 3 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-03-26. Inspectors recorded 1 significant deficiency.

What Should Harrison Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

Nearby Cities in New York

Yonkers, Ny Tap Water Quality 2026 Westchester New Rochelle, Ny Tap Water Quality 2026 Westchester Mount Vernon, Ny Tap Water Quality 2026 Westchester White Plains, Ny Tap Water Quality 2026 Westchester Greenburgh, Ny Tap Water Quality 2026 Westchester Rye, Ny Tap Water Quality 2026 Westchester