A85/100
BOONE COUNTY PWSD 4 — Water Quality Report 2026
Serving 6,455 people · Missouri
Water Source
Groundwater
County
—
System ID
MO3024052
Violations
4
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.009 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2013.
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 BOONE COUNTY PWSD 4
Is BOONE COUNTY PWSD 4 water safe to drink?
BOONE COUNTY PWSD 4 water receives a grade of A (85/100), which is considered excellent. Out of 51 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has BOONE COUNTY PWSD 4 detected?
51 contaminants were tested in BOONE COUNTY PWSD 4's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does BOONE COUNTY PWSD 4 have any EPA violations?
Yes, BOONE COUNTY PWSD 4 has 4 EPA violation(s) on record, with the most recent in 2013. Violation types include Other, MCL, MR. 2 are health-based violations.
How many people does BOONE COUNTY PWSD 4 serve?
BOONE COUNTY PWSD 4 serves approximately 6,455 people, Missouri. The system provides water to 1 community: Hallsville.
What type of water does BOONE COUNTY PWSD 4 provide?
BOONE COUNTY PWSD 4 sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MO3024052.
How does BOONE COUNTY PWSD 4 compare to other utilities in Missouri?
BOONE COUNTY PWSD 4 scores 85/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Missouri state page for a full comparison of water systems.