A89/100
LIMESTONE-WALTERS PWD — Water Quality Report 2026
Serving 2,023 people · Illinois
Water Source
Purchased Groundwater
County
—
System ID
IL1430020
Violations
4
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
4
Violations (last 5yr)
4
Unresolved
1
Health-Related
TIER 3Unresolved
Disinfection byproduct treatment technique failure
When: August 22, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 17, 2024Rule: 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 LIMESTONE-WALTERS PWD
Is LIMESTONE-WALTERS PWD water safe to drink?
LIMESTONE-WALTERS PWD water receives a grade of A (89/100), 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 LIMESTONE-WALTERS PWD detected?
1 contaminants were tested in LIMESTONE-WALTERS PWD's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does LIMESTONE-WALTERS PWD have any EPA violations?
Yes, LIMESTONE-WALTERS PWD has 4 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, RPT, TT. 1 are health-based violations.
How many people does LIMESTONE-WALTERS PWD serve?
LIMESTONE-WALTERS PWD serves approximately 2,023 people, Illinois.
What type of water does LIMESTONE-WALTERS PWD provide?
LIMESTONE-WALTERS PWD sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL1430020.
How does LIMESTONE-WALTERS PWD compare to other utilities in Illinois?
LIMESTONE-WALTERS PWD scores 89/100 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.