PlainEnviro

KEY LARGO UTILITIES

PWSID: TX0200401 · Sheridan, WY · Serves 105 people

Health Violations

KEY LARGO UTILITIES has 11 health-based violations out of 11 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.

Population Served
105
Total Violations
11
Health Violations
11
Source Type
Groundwater

KEY LARGO UTILITIES (PWSID TX0200401) is a cws water system drawing from a groundwater source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 105 people in Sheridan, WY, and is subject to primacy enforcement by the Wyoming drinking-water program.

The system's federal compliance record contains 11 total violations, with 11 classified as health-based (MCL exceedances or treatment-technique failures). 3 distinct contaminants have been cited, including Combined Radium 226/228, E. coli, Gross Alpha. Recorded violations span 2015–2024.

A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Wyoming state drinking-water program's public portal.

System Details

EPA ID (PWSID)
TX0200401
System Type
CWS
Water Source
Groundwater
Location
Sheridan, WY
Population Served
105
Health Violations
Yes (11)

What contaminants are in this water system?

Contaminant Violations Health-Based
Combined Radium 226/228 6 6
E. coli 4 4
Gross Alpha 1 1

Violation History (11)

Contaminant Health Date
Gross Alpha Yes Oct 17, 2024
Combined Radium 226/228 Yes Mar 1, 2024
E. coli Yes Sep 11, 2017
E. coli Yes Sep 11, 2017
Combined Radium 226/228 Yes Oct 1, 2016
E. coli Yes Oct 1, 2016
E. coli Yes Oct 1, 2016
Combined Radium 226/228 Yes Sep 1, 2016
Combined Radium 226/228 Yes Sep 1, 2016
Combined Radium 226/228 Yes Dec 1, 2015
Combined Radium 226/228 Yes Dec 1, 2015

Frequently Asked Questions

Is KEY LARGO UTILITIES water safe to drink?
KEY LARGO UTILITIES has 11 health-based violations out of 11 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed. The system uses groundwater water as its source.
How many people does KEY LARGO UTILITIES serve?
KEY LARGO UTILITIES serves 105 people in Sheridan, WY. It is classified as a CWS water system.
What violations does KEY LARGO UTILITIES have?
KEY LARGO UTILITIES has 11 total violations on record spanning 2015–2024. 11 are health-based violations involving contaminants exceeding EPA limits.
What contaminants have been found in KEY LARGO UTILITIES water?
Violations have been recorded for 3 contaminants. The most frequent: Combined Radium 226/228, E. coli, Gross Alpha.

Nearby Water Systems

SHERIDAN, CITY OF
Sheridan · 22,700 served
1 viol.
RANCHESTER, TOWN OF
Ranchester · 1,297 served
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DAYTON, TOWN OF
Dayton · 824 served
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VETERANS ADMINISTRATION MEDICAL CENTER
Sheridan · 685 served
4 viol.
DOWNER NEIGHBORHOOD I&S DISTRICT
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CLEARMONT, TOWN OF
Clearmont · 142 served
Clean

Explore More

Wyoming Water Systems → All States → Contaminants →

About This Data

Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

Read our methodology - how this data is sourced, computed, and verified.

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