Sheridan Water Quality
Wyoming
According to EPA SDWIS, Sheridan, Wyoming is served by 4 community water systems covering about 23,890 people. The same extract lists 17 health-based violation records, most recently coded 5000 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Sheridan, Wyoming is delivered through 4 EPA-regulated community water systems serving an estimated 23,890 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 17 violation records across the 4 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 5 distinct EPA contaminant codes: Lead and Copper Rule, LEAD AND COPPER RULE REVISIONS, Revised Total Coliform Rule, Total Haloacetic Acids (HAA5), Surface Water Treatment Rule. 1 TRI-reporting industrial facility is also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Wyoming drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| SHERIDAN, CITY OF | 22,700 | 1 | Health |
| VETERANS ADMINISTRATION MEDICAL CENTER | 685 | 5 | Health |
| DOWNER NEIGHBORHOOD I&S DISTRICT | 400 | 0 | Clean |
| KEY LARGO UTILITIES | 105 | 11 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| VETERANS ADMINISTRATION MEDICAL CENTER | Lead and Copper Rule | 2025-04-24 |
| VETERANS ADMINISTRATION MEDICAL CENTER | Lead and Copper Rule | 2024-12-01 |
| VETERANS ADMINISTRATION MEDICAL CENTER | Lead and Copper Rule | 2024-12-01 |
| KEY LARGO UTILITIES | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| KEY LARGO UTILITIES | Lead and Copper Rule | 2024-03-01 |
| KEY LARGO UTILITIES | Revised Total Coliform Rule | 2017-09-11 |
| KEY LARGO UTILITIES | Revised Total Coliform Rule | 2017-09-11 |
| KEY LARGO UTILITIES | Revised Total Coliform Rule | 2016-10-01 |
| KEY LARGO UTILITIES | Revised Total Coliform Rule | 2016-10-01 |
| KEY LARGO UTILITIES | Lead and Copper Rule | 2016-10-01 |
| KEY LARGO UTILITIES | Lead and Copper Rule | 2016-09-01 |
| KEY LARGO UTILITIES | Lead and Copper Rule | 2016-09-01 |
| VETERANS ADMINISTRATION MEDICAL CENTER | Total Haloacetic Acids (HAA5) | 2016-04-01 |
| VETERANS ADMINISTRATION MEDICAL CENTER | Total Haloacetic Acids (HAA5) | 2016-04-01 |
| KEY LARGO UTILITIES | Lead and Copper Rule | 2015-12-01 |
| KEY LARGO UTILITIES | Lead and Copper Rule | 2015-12-01 |
| SHERIDAN, CITY OF | Surface Water Treatment Rule | 1992-01-01 |
What are Sheridan's health-based records for?
Sheridan's health-based violation records carry 5 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Lead and Copper Rule | 9 | 2 |
| Revised Total Coliform Rule | 4 | 1 |
| Total Haloacetic Acids (HAA5) | 2 | 1 |
| Surface Water Treatment Rule | 1 | 1 |
| Lead and Copper Rule Revisions | 1 | 1 |
TRI Facilities in Sheridan
| Facility | Total Releases |
|---|---|
| L&h Industrial Inc. | 1 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Sheridan, Wyoming? ▼
How many water violations does Sheridan have in this EPA extract? ▼
What contaminants were found in Sheridan water? ▼
How many water systems serve Sheridan? ▼
Where does Sheridan get its drinking water? ▼
Are there pollution sources near Sheridan? ▼
How does Sheridan compare in Wyoming?
Of the 115 Wyoming places with at least one community water system on file, Sheridan ranks #18 by number of systems (4).
Either side of it: Mills (4), Riverton (4), Worland (4), Alpine (3)
About This Data
Figures here are the current EPA SDWIS extract joined to the 4 community water systems whose service area lists Sheridan, ranked against the 115 Wyoming places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.