C56/100
JEROME CITY OF — Water Quality Report 2026
Serving 13,135 people · Idaho
Water Source
Groundwater
County
—
System ID
ID5270011
Violations
25
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (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
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 JEROME CITY OF
Is JEROME CITY OF water safe to drink?
JEROME CITY OF water receives a grade of C (56/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 25 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has JEROME CITY OF detected?
51 contaminants were tested in JEROME CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does JEROME CITY OF have any EPA violations?
Yes, JEROME CITY OF has 25 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, MR, MCL. 4 are health-based violations.
How many people does JEROME CITY OF serve?
JEROME CITY OF serves approximately 13,135 people, Idaho.
What type of water does JEROME CITY OF provide?
JEROME CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is ID5270011.
How does JEROME CITY OF compare to other utilities in Idaho?
JEROME 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.