C57/100
GRAND ISLAND, CITY OF — Water Quality Report 2026
Serving 51,478 people · Nebraska
Water Source
Groundwater
County
—
System ID
NE3107902
Violations
5
Contaminant Test Results
5 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 3.67 mg/L | 1.30 mg/L | Over Limit |
PFHxS | 0.025 µg/L | 0.010 µg/L | Over Limit |
PFOS | 0.007 µg/L | 0.004 µg/L | Over Limit |
1,4-dioxane | 0.410 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2010.
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 GRAND ISLAND, CITY OF
Is GRAND ISLAND, CITY OF water safe to drink?
GRAND ISLAND, CITY OF water receives a grade of C (57/100), which is considered fair. 3 contaminant(s) exceed EPA legal limits and 5 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has GRAND ISLAND, CITY OF detected?
67 contaminants were tested in GRAND ISLAND, CITY OF's water. Notable contaminants include Copper (90th percentile), PFHxS, PFOS, Lead (90th percentile), 1,4-dioxane. 3 exceed EPA legal limits (MCLs). 5 exceed EPA health goals (MCLGs).
Does GRAND ISLAND, CITY OF have any EPA violations?
Yes, GRAND ISLAND, CITY OF has 5 EPA violation(s) on record, with the most recent in 2010. Violation types include MR, MCL, TT. 2 are health-based violations.
How many people does GRAND ISLAND, CITY OF serve?
GRAND ISLAND, CITY OF serves approximately 51,478 people, Nebraska. The system provides water to 1 community: Grand Island.
What type of water does GRAND ISLAND, CITY OF provide?
GRAND ISLAND, CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NE3107902.
How does GRAND ISLAND, CITY OF compare to other utilities in Nebraska?
GRAND ISLAND, CITY OF scores 57/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Nebraska state page for a full comparison of water systems.