A84/100
ADAMS COUNTY REGIONAL WD PWS — Water Quality Report 2026
Serving 21,810 people · Ohio
Water Source
Groundwater
County
—
System ID
OH0100012
Violations
5
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 688.00 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2018.
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 ADAMS COUNTY REGIONAL WD PWS
Is ADAMS COUNTY REGIONAL WD PWS water safe to drink?
ADAMS COUNTY REGIONAL WD PWS water receives a grade of A (84/100), which is considered excellent. Out of 67 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has ADAMS COUNTY REGIONAL WD PWS detected?
67 contaminants were tested in ADAMS COUNTY REGIONAL WD PWS's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does ADAMS COUNTY REGIONAL WD PWS have any EPA violations?
Yes, ADAMS COUNTY REGIONAL WD PWS has 5 EPA violation(s) on record, with the most recent in 2018. Violation types include MON, MR, Other.
How many people does ADAMS COUNTY REGIONAL WD PWS serve?
ADAMS COUNTY REGIONAL WD PWS serves approximately 21,810 people, Ohio.
What type of water does ADAMS COUNTY REGIONAL WD PWS provide?
ADAMS COUNTY REGIONAL WD PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OH0100012.
How does ADAMS COUNTY REGIONAL WD PWS compare to other utilities in Ohio?
ADAMS COUNTY REGIONAL WD PWS scores 84/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Ohio state page for a full comparison of water systems.