A92/100
CALLAWAY COUNTY PWSD 1 — Water Quality Report 2026
Serving 9,840 people · Missouri
Water Source
Groundwater
County
—
System ID
MO3024084
Violations
1
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2010.
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 CALLAWAY COUNTY PWSD 1
Is CALLAWAY COUNTY PWSD 1 water safe to drink?
CALLAWAY COUNTY PWSD 1 water receives a grade of A (92/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CALLAWAY COUNTY PWSD 1 detected?
31 contaminants were tested in CALLAWAY COUNTY PWSD 1's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CALLAWAY COUNTY PWSD 1 have any EPA violations?
Yes, CALLAWAY COUNTY PWSD 1 has 1 EPA violation(s) on record, with the most recent in 2010. Violation types include MCL. 1 are health-based violations.
How many people does CALLAWAY COUNTY PWSD 1 serve?
CALLAWAY COUNTY PWSD 1 serves approximately 9,840 people, Missouri. The system provides water to 1 community: Holts Summit.
What type of water does CALLAWAY COUNTY PWSD 1 provide?
CALLAWAY COUNTY PWSD 1 sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MO3024084.
How does CALLAWAY COUNTY PWSD 1 compare to other utilities in Missouri?
CALLAWAY COUNTY PWSD 1 scores 92/100 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.