A91/100
MEREDOSIA — Water Quality Report 2026
Serving 1,075 people · Illinois
Water Source
Groundwater
County
—
System ID
IL1370300
Violations
6
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 2, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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 MEREDOSIA
Is MEREDOSIA water safe to drink?
MEREDOSIA water receives a grade of A (91/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has MEREDOSIA detected?
1 contaminants were tested in MEREDOSIA's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MEREDOSIA have any EPA violations?
Yes, MEREDOSIA has 6 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, Other, MR.
How many people does MEREDOSIA serve?
MEREDOSIA serves approximately 1,075 people, Illinois. The system provides water to 1 community: Meredosia.
What type of water does MEREDOSIA provide?
MEREDOSIA sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL1370300.
How does MEREDOSIA compare to other utilities in Illinois?
MEREDOSIA scores 91/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Illinois state page for a full comparison of water systems.