WEST ALEXANDRIA, OH · Preble County
TWIN VALLEY MHP Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of July 3, 2002. 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 Preble County, OH.
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 Ohio’s official records. Always confirm current status with Ohio before making decisions based on this information.
System facts
- System ID (PWSID)
- OH6801112
- System type
- Community Water System
- Population served
- 10
- Service connections
- 10
- Ownership
- privately owned
- Water source
- groundwater (wells)
TWIN VALLEY MHP is one of 1,399 community water systems in Ohio in the 500 or fewer people size category, formerly serving 10 people from groundwater.
EPA's federal records list this system as inactive in 2002; the record below is historical.
As of August 1, 2026, its federal record holds 26 entries between 1984 and 1998, all of which EPA lists as closed. Nothing has been added since 1998.
Of the 26, 25 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 synthetic organic chemicals, volatile organic chemicals, and inorganic chemicals.
Violation history
Monitoring, Regular
—Nitrate
July 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Toluene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Styrene
January 1, 1998 – December 31, 1998
ResolvedMaximum Contaminant Level Violation, Acute (TCR)
Health-basedColiform (TCR)
July 1, 1997 – July 31, 1997
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 1996 – April 30, 1996
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
January 1, 1996 – October 3, 1997
ResolvedMonitoring, Regular
—Asbestos
January 1, 1995 – June 30, 1995
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 1992 – April 30, 1992
ArchivedMonitoring, Regular
—Toxaphene
January 1, 1991 – December 31, 1991
ResolvedMonitoring, Regular
—Toxaphene
January 1, 1991 – December 31, 1991
ArchivedMonitoring, Regular
—2,4-D
January 1, 1991 – December 31, 1991
ResolvedMonitoring, Regular
—2,4-D
January 1, 1991 – December 31, 1991
ArchivedMonitoring, Regular
—Methoxychlor
January 1, 1991 – December 31, 1991
ResolvedMonitoring, Regular
—Endrin
January 1, 1991 – December 31, 1991
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 1991 – December 31, 1991
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 1991 – December 31, 1991
ArchivedMonitoring, Regular
—Arsenic
December 31, 1985 – December 30, 1988
ArchivedMonitoring, Regular
—Barium
December 31, 1985 – December 30, 1988
ArchivedMonitoring, Regular
—Fluoride
December 31, 1985 – December 30, 1988
ArchivedMonitoring, Regular
—Nitrate
December 31, 1985 – December 30, 1988
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1984 – September 30, 1988
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 1998 – December 31, 1998 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Styrene | — | Resolved |
| July 1, 1997 – July 31, 1997 | Maximum Contaminant Level Violation, Acute (TCR) | Coliform (TCR) | Health-based | Resolved |
| April 1, 1996 – April 30, 1996 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1996 – October 3, 1997 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 1995 – June 30, 1995 | Monitoring, Regular | Asbestos | — | Resolved |
| April 1, 1992 – April 30, 1992 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| January 1, 1991 – December 31, 1991 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 1991 – December 31, 1991 | Monitoring, Regular | Toxaphene | — | Archived |
| January 1, 1991 – December 31, 1991 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 1991 – December 31, 1991 | Monitoring, Regular | 2,4-D | — | Archived |
| January 1, 1991 – December 31, 1991 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 1991 – December 31, 1991 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 1991 – December 31, 1991 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 1991 – December 31, 1991 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| December 31, 1985 – December 30, 1988 | Monitoring, Regular | Arsenic | — | Archived |
| December 31, 1985 – December 30, 1988 | Monitoring, Regular | Barium | — | Archived |
| December 31, 1985 – December 30, 1988 | Monitoring, Regular | Fluoride | — | Archived |
| December 31, 1985 – December 30, 1988 | Monitoring, Regular | Nitrate | — | Archived |
| October 1, 1984 – September 30, 1988 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- October 19, 1988State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- December 23, 1985State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- September 30, 1985State Formal Notice of Violation issued1 linked violation
- February 21, 1984State Violation/Reminder Notice1 linked violation
- February 22, 1982State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
Last known contact on file (system is inactive)
Not on record
440-564-2279
WEST ALEXANDRIA, OH 45381