C56/100
MONTPELIER CITY OF — Water Quality Report 2026
Serving 2,772 people · Idaho
Water Source
Groundwater
County
—
System ID
ID6040021
Violations
20
Contaminant Test Results
EPA Violation History
2
Violations (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 2, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 30, 2023 – August 28, 2023Rule: Ground Water RuleEnforcement: 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 MONTPELIER CITY OF
Is MONTPELIER CITY OF water safe to drink?
MONTPELIER CITY OF water receives a grade of C (56/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 20 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MONTPELIER CITY OF detected?
1 contaminants were tested in MONTPELIER CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does MONTPELIER CITY OF have any EPA violations?
Yes, MONTPELIER CITY OF has 20 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, MR, MCL. 6 are health-based violations.
How many people does MONTPELIER CITY OF serve?
MONTPELIER CITY OF serves approximately 2,772 people, Idaho.
What type of water does MONTPELIER CITY OF provide?
MONTPELIER CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is ID6040021.
How does MONTPELIER CITY OF compare to other utilities in Idaho?
MONTPELIER CITY OF scores 56/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Idaho state page for a full comparison of water systems.