B75/100

ONTARIO TOWN BENEFIT AREA #1 — Water Quality Report 2026

Serving 10,136 people · New York

Water Source
Surface Water
County
System ID
NY5801233
Violations
6

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.003 mg/L0.015 mg/LAbove Goal

EPA Violation History

2

Violations (last 5yr)

1

Unresolved

0

Health-Related

TIER 3Unresolved

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: April 1, 2024 – April 30, 2024Rule: Stage 1 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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: March 1, 2022 – March 31, 2022Rule: Stage 1 DBPREnforcement: 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 ONTARIO TOWN BENEFIT AREA #1

Is ONTARIO TOWN BENEFIT AREA #1 water safe to drink?

ONTARIO TOWN BENEFIT AREA #1 water receives a grade of B (75/100), which is considered good. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.

What contaminants has ONTARIO TOWN BENEFIT AREA #1 detected?

69 contaminants were tested in ONTARIO TOWN BENEFIT AREA #1's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does ONTARIO TOWN BENEFIT AREA #1 have any EPA violations?

Yes, ONTARIO TOWN BENEFIT AREA #1 has 6 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, TT. 4 are health-based violations.

How many people does ONTARIO TOWN BENEFIT AREA #1 serve?

ONTARIO TOWN BENEFIT AREA #1 serves approximately 10,136 people, New York. The system provides water to 1 community: Ontario (T).

What type of water does ONTARIO TOWN BENEFIT AREA #1 provide?

ONTARIO TOWN BENEFIT AREA #1 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 NY5801233.

How does ONTARIO TOWN BENEFIT AREA #1 compare to other utilities in New York?

ONTARIO TOWN BENEFIT AREA #1 scores 75/100 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.

Cities Served