THREE LAKES SANITARY DISTRICT
PWSID: WI7440129 · Three Lakes, WI · Serves 500 people
According to EPA Safe Drinking Water Information System (SDWIS), THREE LAKES SANITARY DISTRICT (PWSID WI7440129) in Three Lakes, WI is listed as a CWS water system covering about 500 people. The same extract lists 3 health-based violation records spanning 2024-2025. Those 3 health-based rows for THREE LAKES SANITARY DISTRICT cover contaminants such as LEAD AND COPPER RULE REVISIONS, Groundwater Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
THREE LAKES SANITARY DISTRICT has 3 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. 2 distinct EPA contaminant codes appear in this system's record, including LEAD AND COPPER RULE REVISIONS, Groundwater Rule. Recorded violations span 2024–2025. 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)
- WI7440129
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Three Lakes, WI
- Population Served
- 500
- Health Violations
- Yes (3)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | 2 | 2 |
| Groundwater Rule | 1 | 1 |
Violation History (3)
| Contaminant | Health | Date |
|---|---|---|
| Groundwater Rule | Yes | Jan 16, 2025 |
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
Frequently Asked Questions
What does EPA SDWIS list for THREE LAKES SANITARY DISTRICT?
How many people does THREE LAKES SANITARY DISTRICT serve?
What violations does THREE LAKES SANITARY DISTRICT have?
What contaminants have been found in THREE LAKES SANITARY DISTRICT water?
Compare beyond Wisconsin
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest THREE LAKES SANITARY DISTRICT on cumulative violation count (3) and EPA-reported population served (500). Violation-count peers include Mohegan Tribal Utility Authority, Tesuque Pueblo, Pojoaque South. Population peers include SACKMAN, TRAPPER CREEK WATERING POINT, FCMTC WATERWORKS.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
THREE LAKES SANITARY DISTRICT (WI7440129) is drawn from EPA SDWIS. Nearby county systems in this extract include RHINELANDER WATER & WASTEWATER; NORTHERNAIRE SANITARY DISTRICT; MCNAUGHTON CORRECTIONAL CENTER; ROCKWOOD ESTATES. Health-based rows (3 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.