C55/100
HOUSTON PWS — Water Quality Report 2026
Serving 2,134 people · Missouri
Water Source
Groundwater
County
—
System ID
MO4010382
Violations
14
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.005 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
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: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – November 1, 2023Enforcement: Resolving — corrective action underway
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 HOUSTON PWS
Is HOUSTON PWS water safe to drink?
HOUSTON PWS water receives a grade of C (55/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 14 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has HOUSTON PWS detected?
1 contaminants were tested in HOUSTON PWS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does HOUSTON PWS have any EPA violations?
Yes, HOUSTON PWS has 14 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, Other, MR. 7 are health-based violations.
How many people does HOUSTON PWS serve?
HOUSTON PWS serves approximately 2,134 people, Missouri. The system provides water to 1 community: Houston.
What type of water does HOUSTON PWS provide?
HOUSTON PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MO4010382.
How does HOUSTON PWS compare to other utilities in Missouri?
HOUSTON PWS scores 55/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Missouri state page for a full comparison of water systems.