OAKDALE WATERWORKS
PWSID: WI6420069 · Oakdale, WI · Serves 317 people
According to EPA Safe Drinking Water Information System (SDWIS), OAKDALE WATERWORKS (PWSID WI6420069) in Oakdale, WI is listed as a CWS water system covering about 317 people. The same extract lists 1 health-based violation record spanning 2025-2025. Those 1 health-based row for OAKDALE WATERWORKS cover contaminants such as Stage 1 Disinfectants and Disinfection Byproducts Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
OAKDALE WATERWORKS 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 Wisconsin 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 Wisconsin state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- WI6420069
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Oakdale, WI
- Population Served
- 317
- 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 | Aug 2, 2025 |
Frequently Asked Questions
What does EPA SDWIS list for OAKDALE WATERWORKS?
How many people does OAKDALE WATERWORKS serve?
What violations does OAKDALE WATERWORKS have?
What contaminants have been found in OAKDALE WATERWORKS water?
Compare beyond Wisconsin
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest OAKDALE WATERWORKS on cumulative violation count (1) and EPA-reported population served (317). 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.
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About This Data
OAKDALE WATERWORKS (WI6420069) is drawn from EPA SDWIS. Health-based rows in this extract are MCL and Treatment Technique records spanning 2025-2025 covering Stage 1 Disinfectants and Disinfection Byproducts Rule. Historical registry entries, 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.