C49/100
GILBERT WATER SUPPLY — Water Quality Report 2026
Serving 1,211 people · Iowa
Water Source
Groundwater
County
—
System ID
IA8531083
Violations
39
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.70 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2021 – October 31, 2021Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2021 – October 31, 2021Rule: Stage 2 DBPREnforcement: 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 GILBERT WATER SUPPLY
Is GILBERT WATER SUPPLY water safe to drink?
GILBERT WATER SUPPLY water receives a grade of C (49/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 39 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has GILBERT WATER SUPPLY detected?
28 contaminants were tested in GILBERT WATER SUPPLY's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does GILBERT WATER SUPPLY have any EPA violations?
Yes, GILBERT WATER SUPPLY has 39 EPA violation(s) on record, with the most recent in 2021. Violation types include MR, MCL. 1 are health-based violations.
How many people does GILBERT WATER SUPPLY serve?
GILBERT WATER SUPPLY serves approximately 1,211 people, Iowa. The system provides water to 1 community: Gilbert.
What type of water does GILBERT WATER SUPPLY provide?
GILBERT WATER SUPPLY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA8531083.
How does GILBERT WATER SUPPLY compare to other utilities in Iowa?
GILBERT WATER SUPPLY scores 49/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Iowa state page for a full comparison of water systems.