OWANKA RURAL WATER SYSTEM
PWSID: SD4602310 · Black Hawk, SD · Serves 52 people
According to EPA Safe Drinking Water Information System (SDWIS), OWANKA RURAL WATER SYSTEM (PWSID SD4602310) in Black Hawk, SD is listed as a CWS water system covering about 52 people. The same extract lists 20 health-based violation records spanning 2016-2020. Those 20 health-based rows for OWANKA RURAL WATER SYSTEM cover contaminants such as Combined Radium (-226 and -228); they remain historical EPA registry entries, not a current compliance or drinkability score.
OWANKA RURAL WATER SYSTEM has 20 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 1 distinct EPA contaminant code appears in this system's record, including Combined Radium (-226 and -228). Recorded violations span 2016–2020. Day-to-day primacy enforcement for this system runs through the South Dakota drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the South Dakota state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- SD4602310
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Black Hawk, SD
- Population Served
- 52
- Health Violations
- Yes (20)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Combined Radium (-226 and -228) | 20 | 20 |
Violation History (20)
| Contaminant | Health | Date |
|---|---|---|
| Combined Radium (-226 and -228) | Yes | Oct 1, 2020 |
| Combined Radium (-226 and -228) | Yes | Jul 1, 2020 |
| Combined Radium (-226 and -228) | Yes | Apr 1, 2020 |
| Combined Radium (-226 and -228) | Yes | Jan 1, 2020 |
| Combined Radium (-226 and -228) | Yes | Oct 1, 2019 |
| Combined Radium (-226 and -228) | Yes | Jul 1, 2019 |
| Combined Radium (-226 and -228) | Yes | Apr 1, 2019 |
| Combined Radium (-226 and -228) | Yes | Jan 1, 2019 |
| Combined Radium (-226 and -228) | Yes | Oct 1, 2018 |
| Combined Radium (-226 and -228) | Yes | Jul 1, 2018 |
| Combined Radium (-226 and -228) | Yes | Apr 1, 2018 |
| Combined Radium (-226 and -228) | Yes | Jan 1, 2018 |
| Combined Radium (-226 and -228) | Yes | Oct 31, 2017 |
| Combined Radium (-226 and -228) | Yes | Jul 1, 2017 |
| Combined Radium (-226 and -228) | Yes | Apr 1, 2017 |
| Combined Radium (-226 and -228) | Yes | Jan 1, 2017 |
| Combined Radium (-226 and -228) | Yes | Oct 1, 2016 |
| Combined Radium (-226 and -228) | Yes | Jul 1, 2016 |
| Combined Radium (-226 and -228) | Yes | Apr 1, 2016 |
| Combined Radium (-226 and -228) | Yes | Jan 1, 2016 |
Frequently Asked Questions
What does EPA SDWIS list for OWANKA RURAL WATER SYSTEM?
How many people does OWANKA RURAL WATER SYSTEM serve?
What violations does OWANKA RURAL WATER SYSTEM have?
What contaminants have been found in OWANKA RURAL WATER SYSTEM water?
Compare beyond South Dakota
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest OWANKA RURAL WATER SYSTEM on cumulative violation count (20) and EPA-reported population served (52). Violation-count peers include Yerington (Campbell Ranch), GENTRY WATERWORKS, MULBERRY WATERWORKS.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
Explore More
About This Data
OWANKA RURAL WATER SYSTEM (SD4602310) is drawn from EPA SDWIS. Nearby county systems in this extract include BOX ELDER; ELLSWORTH AFB; STURGIS; BLACK HAWK WATER USER DISTRICT. Health-based rows (20 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.