Potosi Water Quality
Missouri
According to EPA SDWIS, Potosi, Missouri is served by 3 community water systems covering about 3,930 people. The same extract lists 30 health-based violation records, most recently coded 3100 in 2015. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Potosi, Missouri is delivered through 3 EPA-regulated community water systems serving an estimated 3,930 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 30 violation records across the 3 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 1 distinct EPA contaminant code: Coliform (TCR). 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 Missouri 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 |
|---|---|---|---|
| POTOSI PWS | 2,527 | 26 | Health |
| POTOSI EAST | 900 | 4 | Health |
| WASHINGTON COUNTY PWSD 1 | 503 | 0 | Clean |
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 |
|---|---|---|
| POTOSI PWS | Coliform (TCR) | 2015-12-01 |
| POTOSI PWS | Coliform (TCR) | 2015-12-01 |
| POTOSI PWS | Coliform (TCR) | 2015-09-01 |
| POTOSI PWS | Coliform (TCR) | 2015-09-01 |
| POTOSI EAST | Coliform (TCR) | 2015-09-01 |
| POTOSI EAST | Coliform (TCR) | 2015-09-01 |
| POTOSI PWS | Coliform (TCR) | 2001-01-01 |
| POTOSI PWS | Coliform (TCR) | 2001-01-01 |
| POTOSI PWS | Coliform (TCR) | 1999-09-01 |
| POTOSI PWS | Coliform (TCR) | 1999-09-01 |
| POTOSI PWS | Coliform (TCR) | 1999-01-01 |
| POTOSI PWS | Coliform (TCR) | 1999-01-01 |
| POTOSI PWS | Coliform (TCR) | 1998-05-01 |
| POTOSI PWS | Coliform (TCR) | 1998-05-01 |
| POTOSI PWS | Coliform (TCR) | 1997-10-01 |
| POTOSI PWS | Coliform (TCR) | 1997-10-01 |
| POTOSI PWS | Coliform (TCR) | 1997-09-01 |
| POTOSI PWS | Coliform (TCR) | 1997-09-01 |
| POTOSI PWS | Coliform (TCR) | 1996-09-01 |
| POTOSI PWS | Coliform (TCR) | 1996-09-01 |
| POTOSI PWS | Coliform (TCR) | 1996-08-01 |
| POTOSI PWS | Coliform (TCR) | 1996-08-01 |
| POTOSI EAST | Coliform (TCR) | 1995-09-01 |
| POTOSI EAST | Coliform (TCR) | 1995-09-01 |
| POTOSI PWS | Coliform (TCR) | 1994-11-01 |
| POTOSI PWS | Coliform (TCR) | 1994-11-01 |
| POTOSI PWS | Coliform (TCR) | 1994-09-01 |
| POTOSI PWS | Coliform (TCR) | 1994-09-01 |
| POTOSI PWS | Coliform (TCR) | 1993-09-01 |
| POTOSI PWS | Coliform (TCR) | 1993-09-01 |
What are Potosi's health-based records for?
Every health-based violation record in Potosi carries one EPA contaminant or rule code. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Coliform (TCR) | 30 | 2 |
TRI Facilities in Potosi
| Facility | Total Releases |
|---|---|
| Red Wing Shoe Co | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Potosi, Missouri? ▼
How many water violations does Potosi have in this EPA extract? ▼
What contaminants were found in Potosi water? ▼
How many water systems serve Potosi? ▼
Where does Potosi get its drinking water? ▼
Are there pollution sources near Potosi? ▼
How does Potosi compare in Missouri?
Of the 676 Missouri places with at least one community water system on file, Potosi ranks #108 by number of systems (3).
Either side of it: Owensville (3), Platte City (3), Riverside (3), Rock Port (3)
About This Data
Figures here are the current EPA SDWIS extract joined to the 3 community water systems whose service area lists Potosi, ranked against the 676 Missouri 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.