B71/100
PROPHETSTOWN — Water Quality Report 2026
Serving 2,100 people · Illinois
Water Source
Groundwater
County
—
System ID
IL1950400
Violations
13
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 2.55 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
3
Violations (last 5yr)
3
Unresolved
1
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
TIER 3Unresolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Treatment technique violation
When: October 17, 2024Rule: 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 PROPHETSTOWN
Is PROPHETSTOWN water safe to drink?
PROPHETSTOWN water receives a grade of B (71/100), which is considered good. Out of 2 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has PROPHETSTOWN detected?
2 contaminants were tested in PROPHETSTOWN's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does PROPHETSTOWN have any EPA violations?
Yes, PROPHETSTOWN has 13 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, MR, TT. 2 are health-based violations.
How many people does PROPHETSTOWN serve?
PROPHETSTOWN serves approximately 2,100 people, Illinois. The system provides water to 1 community: Prophetstown.
What type of water does PROPHETSTOWN provide?
PROPHETSTOWN sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL1950400.
How does PROPHETSTOWN compare to other utilities in Illinois?
PROPHETSTOWN scores 71/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Illinois state page for a full comparison of water systems.