A88/100
HERCULANEUM PWS — Water Quality Report 2026
Serving 4,227 people · Missouri
Water Source
GUP
County
—
System ID
MO6010359
Violations
5
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2008.
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 HERCULANEUM PWS
Is HERCULANEUM PWS water safe to drink?
HERCULANEUM PWS water receives a grade of A (88/100), which is considered excellent. Out of 34 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has HERCULANEUM PWS detected?
34 contaminants were tested in HERCULANEUM PWS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does HERCULANEUM PWS have any EPA violations?
Yes, HERCULANEUM PWS has 5 EPA violation(s) on record, with the most recent in 2008. Violation types include MR, Other, MCL. 1 are health-based violations.
How many people does HERCULANEUM PWS serve?
HERCULANEUM PWS serves approximately 4,227 people, Missouri. The system provides water to 1 community: Herculaneum.
What type of water does HERCULANEUM PWS provide?
HERCULANEUM PWS sources its water from gup. The utility's system ID is MO6010359.
How does HERCULANEUM PWS compare to other utilities in Missouri?
HERCULANEUM PWS scores 88/100 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.