HOUSE SPRINGS, MO · Jefferson County
LAKE MONTOWESE Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of June 20, 2007. 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 Jefferson County, MO.
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 Missouri’s official records. Always confirm current status with Missouri before making decisions based on this information.
System facts
- System ID (PWSID)
- MO6036079
- System type
- Community Water System
- Population served
- 0
- Service connections
- 104
- Ownership
- privately owned
- Water source
- groundwater (wells)
LAKE MONTOWESE formerly served 0 people from groundwater.
EPA's federal records list this system as inactive in 2007; the record below is historical.
As of August 1, 2026, its federal record holds 1 entry in 2004, all of which EPA lists as closed. Nothing has been added since 2004.
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 Radionuclides and Revised Rad Rule.
Violation history
Monitoring, Regular
—Radium-226
April 1, 2004 – June 30, 2004
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2004 – June 30, 2004 | Monitoring, Regular | Radium-226 | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Last known contact on file (system is inactive)
Not on record
636-694-2174
HOUSE SPRINGS, MO 630510000