Saint Marys Water Quality
Pennsylvania
According to EPA SDWIS, Saint Marys, Pennsylvania is served by 1 community water system covering about 19,588 people. The same extract lists 1 health-based violation record, most recently coded 2456 in 2016. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Saint Marys, Pennsylvania is delivered through 1 EPA-regulated community water system serving an estimated 19,588 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 1 violation record across the 1 active community system shown here. Monitoring and reporting records are not present in the extract. The records carry 1 distinct EPA contaminant code: Total Haloacetic Acids (HAA5). 17 TRI-reporting industrial facilities are 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 Pennsylvania 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 |
|---|---|---|---|
| ST MARYS AREA WATER AUTH | 19,588 | 1 | 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 |
|---|---|---|
| ST MARYS AREA WATER AUTH | Total Haloacetic Acids (HAA5) | 2016-01-01 |
What are Saint Marys's health-based records for?
Every health-based violation record in Saint Marys carries one EPA contaminant or rule code. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Total Haloacetic Acids (HAA5) | 1 | 1 |
TRI Facilities in Saint Marys
| Facility | Total Releases |
|---|---|
| Mersen USA Gs Corp. - St Marys | 42.2K lbs |
| Speer Carbon Co LLC | 27.5K lbs |
| Morgan Advanced Materials St Marys Site | 13.8K lbs |
| Keystone Powdered Metal Co | 10.5K lbs |
| St. Marys Carbon Co Inc | 5.4K lbs |
| Sgl Carbon LLC | 2.6K lbs |
| Metaldyne Sintered Stmarys | 2.2K lbs |
| Sinterite Products Div of Gpi | 2.1K lbs |
| Graftech USA LLC | 761 lbs |
| Gasbarre Thermal Processing Systems | 513 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Saint Marys, Pennsylvania? ▼
How many water violations does Saint Marys have in this EPA extract? ▼
What contaminants were found in Saint Marys water? ▼
How many water systems serve Saint Marys? ▼
Where does Saint Marys get its drinking water? ▼
Are there pollution sources near Saint Marys? ▼
How does Saint Marys compare in Pennsylvania?
Of the 769 Pennsylvania places with at least one community water system on file, Saint Marys ranks #661 by number of systems (1).
Either side of it: Russell (1), Saegertown (1), Salisbury (1), Saltillo (1)
About This Data
Figures here are the current EPA SDWIS extract joined to the 1 community water system whose service area lists Saint Marys, ranked against the 769 Pennsylvania 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.