Water Quality: KEYSTONE, SD
19 water systems • 349 people served
No Health ViolationsWater Quality Summary
KEYSTONE is served by 19 public water systems with a combined service population of 349 people, and has 22 EPA Safe Drinking Water Act violations on record. None of those violations are health-based — the records reflect missed monitoring or reporting deadlines rather than a contaminant exceeding safe levels. KEYSTONE's violation count is 71% below the national average for South Dakota. Contaminants associated with violations include Coliform (TCR).
Contaminants Found
Water Systems Serving KEYSTONE
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| KEYSTONE | SD4601082 | Groundwater | 349 | 22 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in South Dakota
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.