SENECA
PWSID: SD4600292 · Seneca, SD · Serves 25 people
According to EPA Safe Drinking Water Information System (SDWIS), SENECA (PWSID SD4600292) in Seneca, SD is listed as a CWS water system covering about 25 people. The same extract lists 4 health-based violation records spanning 2011-2018. Those 4 health-based rows for SENECA cover contaminants such as Stage 1 Disinfectants and Disinfection Byproducts Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
SENECA has 4 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 Stage 1 Disinfectants and Disinfection Byproducts Rule. Recorded violations span 2011–2018. 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)
- SD4600292
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Seneca, SD
- Population Served
- 25
- Health Violations
- Yes (4)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 4 | 4 |
Violation History (4)
| Contaminant | Health | Date |
|---|---|---|
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Yes | Feb 1, 2018 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Yes | Feb 1, 2016 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Yes | Feb 1, 2014 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Yes | Feb 1, 2011 |
Frequently Asked Questions
What does EPA SDWIS list for SENECA?
How many people does SENECA serve?
What violations does SENECA have?
What contaminants have been found in SENECA water?
Compare beyond South Dakota
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest SENECA on cumulative violation count (4) and EPA-reported population served (25). Violation-count peers include Santo Domingo Pueblo, Isleta Eastside, PARSHALL-LUCKY MOUND.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
Explore More
About This Data
SENECA (SD4600292) is drawn from EPA SDWIS. Nearby county systems in this extract include FAULKTON; BRENTWOOD COLONY; BLUMENGARD COLONY; EVERGREEN COLONY. Health-based rows (4 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.