D38/100
MARIETTA CITY PWS — Water Quality Report 2026
Serving 18,707 people · Ohio
Water Source
Groundwater
County
—
System ID
OH8400412
Violations
30
Contaminant Test Results
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 50.00 mg/L | 1.30 mg/L | Over Limit |
PFOS | 0.004 µg/L | 0.004 µg/L | Over Limit |
PFOA | 0.004 µg/L | 0.004 µg/L | Over Limit |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Surface water treatment technique failure
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 MARIETTA CITY PWS
Is MARIETTA CITY PWS water safe to drink?
MARIETTA CITY PWS water receives a grade of D (38/100), which is considered poor. 3 contaminant(s) exceed EPA legal limits and 30 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MARIETTA CITY PWS detected?
67 contaminants were tested in MARIETTA CITY PWS's water. Notable contaminants include Copper (90th percentile), PFOS, PFOA. 3 exceed EPA legal limits (MCLs). 3 exceed EPA health goals (MCLGs).
Does MARIETTA CITY PWS have any EPA violations?
Yes, MARIETTA CITY PWS has 30 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR, MCL. 2 are health-based violations.
How many people does MARIETTA CITY PWS serve?
MARIETTA CITY PWS serves approximately 18,707 people, Ohio.
What type of water does MARIETTA CITY PWS provide?
MARIETTA CITY PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OH8400412.
How does MARIETTA CITY PWS compare to other utilities in Ohio?
MARIETTA CITY PWS scores 38/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Ohio state page for a full comparison of water systems.