OZARK, MO · Christian County
OAK HILLS Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of August 1, 1991. 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 Christian 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)
- MO5048135
- System type
- Community Water System
- Population served
- 40
- Service connections
- 17
- Ownership
- privately owned
- Water source
- groundwater (wells)
OAK HILLS is one of 1,412 community water systems in Missouri in the 500 or fewer people size category, formerly serving 40 people from groundwater.
EPA's federal records list this system as inactive in 1991; the record below is historical.
As of August 1, 2026, its federal record holds 3 entries in 1991, all of which EPA lists as closed. Nothing has been added since 1991.
All 3 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 Major (TCR)
—Coliform (TCR)
August 1, 1991 – August 1, 1991
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 1991 – July 31, 1991
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
March 1, 1991 – March 31, 1991
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| August 1, 1991 – August 1, 1991 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| July 1, 1991 – July 31, 1991 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| March 1, 1991 – March 31, 1991 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- July 26, 1991State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
Last known contact on file (system is inactive)
Not on record
0 - -
OZARK, MO 65721