B75/100
AQUA OHIO - MARION — Water Quality Report 2026
Serving 46,317 people · Ohio
Water Source
Surface Water
County
—
System ID
OH5100414
Violations
4
Contaminant Test Results
4 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 23.00 mg/L | 1.30 mg/L | Over Limit |
strontium | 3200.00 µg/L | — | Above Goal |
1,4-dioxane | 0.900 µg/L | — | Above Goal |
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2004.
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 AQUA OHIO - MARION
Is AQUA OHIO - MARION water safe to drink?
AQUA OHIO - MARION water receives a grade of B (75/100), which is considered good. Out of 70 contaminants tested, 1 exceed EPA legal limits. 4 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has AQUA OHIO - MARION detected?
70 contaminants were tested in AQUA OHIO - MARION's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile), strontium, 1,4-dioxane. 1 exceed EPA legal limits (MCLs). 4 exceed EPA health goals (MCLGs).
Does AQUA OHIO - MARION have any EPA violations?
Yes, AQUA OHIO - MARION has 4 EPA violation(s) on record, with the most recent in 2004. Violation types include Other, TT, MR. 1 are health-based violations.
How many people does AQUA OHIO - MARION serve?
AQUA OHIO - MARION serves approximately 46,317 people, Ohio.
What type of water does AQUA OHIO - MARION provide?
AQUA OHIO - MARION 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 OH5100414.
How does AQUA OHIO - MARION compare to other utilities in Ohio?
AQUA OHIO - MARION scores 75/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Ohio state page for a full comparison of water systems.