B62/100
DUNKLIN COUNTY PWSD 1 — Water Quality Report 2026
Serving 4,307 people · Missouri
Water Source
Groundwater
County
—
System ID
MO4024206
Violations
11
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
2
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: February 6, 2025 – March 13, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Unresolved
Violation related to Consumer Confidence Report
When: December 16, 2024Rule: Consumer Confidence 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 DUNKLIN COUNTY PWSD 1
Is DUNKLIN COUNTY PWSD 1 water safe to drink?
DUNKLIN COUNTY PWSD 1 water receives a grade of B (62/100), which is considered good. 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 DUNKLIN COUNTY PWSD 1 detected?
31 contaminants were tested in DUNKLIN COUNTY PWSD 1's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does DUNKLIN COUNTY PWSD 1 have any EPA violations?
Yes, DUNKLIN COUNTY PWSD 1 has 11 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, TT, MCL. 6 are health-based violations.
How many people does DUNKLIN COUNTY PWSD 1 serve?
DUNKLIN COUNTY PWSD 1 serves approximately 4,307 people, Missouri.
What type of water does DUNKLIN COUNTY PWSD 1 provide?
DUNKLIN 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 MO4024206.
How does DUNKLIN COUNTY PWSD 1 compare to other utilities in Missouri?
DUNKLIN COUNTY PWSD 1 scores 62/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Missouri state page for a full comparison of water systems.