DEERFIELD, WI · Dane County
THOMPSON CORRECTIONAL CENTER Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of April 30, 2003. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Dane County, WI.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Wisconsin’s official records. Always confirm current status with Wisconsin before making decisions based on this information.
System facts
- System ID (PWSID)
- WI1130222
- System type
- Community Water System
- Population served
- 167
- Service connections
- 61
- Ownership
- state government
- Water source
- groundwater (wells)
THOMPSON CORRECTIONAL CENTER is one of 1,289 community water systems in Wisconsin in the 500 or fewer people size category, formerly serving 167 people from groundwater.
EPA's federal records list this system as inactive in 2003; the record below is historical.
As of August 1, 2026, its federal record holds 1 entry in 1993, all of which EPA lists as closed. Nothing has been added since 1993.
All 1 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules.
Violation history
Monitoring, Routine Minor (TCR)
—Coliform (TCR)
January 1, 1993 – January 31, 1993
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 1993 – January 31, 1993 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- February 17, 1993State Public Notification received2 linked violations
- February 8, 1993State Public Notification requested2 linked violations
Last known contact on file (system is inactive)
Not on record
Phone not on record
DEERFIELD, WI 53531