B66/100
GREAT BASIN WATER COMPANY — Water Quality Report 2026
Serving 11,322 people · Nevada
Water Source
Groundwater
County
—
System ID
NV0000270
Violations
10
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 26.40 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2023 – September 28, 2023Enforcement: 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 GREAT BASIN WATER COMPANY
Is GREAT BASIN WATER COMPANY water safe to drink?
GREAT BASIN WATER COMPANY water receives a grade of B (66/100), which is considered good. Out of 32 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has GREAT BASIN WATER COMPANY detected?
32 contaminants were tested in GREAT BASIN WATER COMPANY's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does GREAT BASIN WATER COMPANY have any EPA violations?
Yes, GREAT BASIN WATER COMPANY has 10 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, MCL. 4 are health-based violations.
How many people does GREAT BASIN WATER COMPANY serve?
GREAT BASIN WATER COMPANY serves approximately 11,322 people, Nevada.
What type of water does GREAT BASIN WATER COMPANY provide?
GREAT BASIN WATER COMPANY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NV0000270.
How does GREAT BASIN WATER COMPANY compare to other utilities in Nevada?
GREAT BASIN WATER COMPANY scores 66/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Nevada state page for a full comparison of water systems.