A89/100
ANTELOPE VALLEY I&S DISTRICT (AVISD) — Water Quality Report 2026
Serving 1,280 people · Wyoming
Water Source
Groundwater
County
—
System ID
WY5600251
Violations
8
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
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 2018.
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 ANTELOPE VALLEY I&S DISTRICT (AVISD)
Is ANTELOPE VALLEY I&S DISTRICT (AVISD) water safe to drink?
ANTELOPE VALLEY I&S DISTRICT (AVISD) water receives a grade of A (89/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has ANTELOPE VALLEY I&S DISTRICT (AVISD) detected?
1 contaminants were tested in ANTELOPE VALLEY I&S DISTRICT (AVISD)'s water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ANTELOPE VALLEY I&S DISTRICT (AVISD) have any EPA violations?
Yes, ANTELOPE VALLEY I&S DISTRICT (AVISD) has 8 EPA violation(s) on record, with the most recent in 2018. Violation types include MON, MR.
How many people does ANTELOPE VALLEY I&S DISTRICT (AVISD) serve?
ANTELOPE VALLEY I&S DISTRICT (AVISD) serves approximately 1,280 people, Wyoming. The system provides water to 1 community: Gillette.
What type of water does ANTELOPE VALLEY I&S DISTRICT (AVISD) provide?
ANTELOPE VALLEY I&S DISTRICT (AVISD) sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WY5600251.
How does ANTELOPE VALLEY I&S DISTRICT (AVISD) compare to other utilities in Wyoming?
ANTELOPE VALLEY I&S DISTRICT (AVISD) scores 89/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Wyoming state page for a full comparison of water systems.