Public water system · SD4601082
ActiveKeystone
Community water system in Pennington County, South Dakota, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
349
Service connections
249
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2019-01-01 | 03 | 4006 | No | Resolved |
| 2019-01-01 | 03 | 4000 | No | Resolved |
| 2015-10-01 | 22 | 3100 | Yes | Resolved |
| 2015-09-01 | 22 | 3100 | Yes | Resolved |
| 2015-06-01 | 22 | 3100 | Yes | Resolved |
| 2010-10-01 | 52 | 5000 | No | Resolved |
| 2000-07-01 | 71 | 7000 | No | Resolved |
| 1995-09-01 | 22 | 3100 | Yes | Resolved |
| 1989-11-08 | 03 | 1045 | No | Resolved |
| 1989-11-08 | 03 | 1020 | No | Resolved |
| 1989-11-08 | 03 | 1035 | No | Resolved |
| 1989-11-08 | 03 | 1025 | No | Resolved |
Keystone: frequently asked questions
Is Keystone's water safe to drink?
Keystone is an active community water system regulated under the Safe Drinking Water Act, overseen by the SD state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Keystone?
Keystone (PWSID SD4601082) is a local government-owned community water system, regulated by the SD state drinking water program.
How many people does Keystone serve?
Keystone reports serving 349 people through 249 service connections in Pennington County, South Dakota.
Where does Keystone get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Pennington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Rapid City | Pennington | 72,009 | Community | Surface water |
| Box Elder | Pennington | 14,000 | Community | Groundwater |
| Rapid Valley Sanitary District | Pennington | 11,408 | Community | Surface water |
| Ellsworth Afb | Pennington | 9,100 | Community | Purchased surface water |
| Thief River Falls | Pennington | 8,701 | Community | Surface water |
| Nps-Mount Rushmore National Memorial | Pennington | 4,100 | Non-transient non-community | Groundwater |