NORTH HERMOSA WUD
PWSID: SD4600329 · Hermosa, SD · Serves 40 people
According to EPA Safe Drinking Water Information System (SDWIS), NORTH HERMOSA WUD (PWSID SD4600329) in Hermosa, SD is listed as a CWS water system covering about 40 people. The same extract lists 1 health-based violation record spanning 2025-2025. Those 1 health-based row for NORTH HERMOSA WUD cover contaminants such as Stage 1 Disinfectants and Disinfection Byproducts Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
NORTH HERMOSA WUD has 1 health-based violation record 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 2025–2025. 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)
- SD4600329
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Hermosa, SD
- Population Served
- 40
- Health Violations
- Yes (1)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 1 | 1 |
Violation History (1)
| Contaminant | Health | Date |
|---|---|---|
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Yes | Feb 1, 2025 |
Frequently Asked Questions
What does EPA SDWIS list for NORTH HERMOSA WUD?
How many people does NORTH HERMOSA WUD serve?
What violations does NORTH HERMOSA WUD have?
What contaminants have been found in NORTH HERMOSA WUD water?
Compare beyond South Dakota
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest NORTH HERMOSA WUD on cumulative violation count (1) and EPA-reported population served (40). Violation-count peers include CHOCTAW - CONEHATTA, CHOCTAW - PEARL RIVER, CHOCTAW - TUCKER.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
NORTH HERMOSA WUD (SD4600329) is drawn from EPA SDWIS. Nearby county systems in this extract include CUSTER; HERMOSA WATER USERS ASSOCIATION; FAIRBURN WATER ASSOCIATION. Health-based rows (1 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.