COLUMBUS, OH · Franklin County
MT AIR IMPROVEMENT CORP Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of November 18, 2021. 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 Franklin 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)
- OH2504212
- System type
- Community Water System
- Population served
- 142
- Service connections
- 48
- Ownership
- privately owned
- Water source
- groundwater (wells)
MT AIR IMPROVEMENT CORP is one of 1,399 community water systems in Ohio in the 500 or fewer people size category, formerly serving 142 people from groundwater.
EPA's federal records list this system as inactive in 2021; the record below is historical.
As of August 1, 2026, its federal record holds 12 entries between 1991 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.
Of the 12, 8 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, synthetic organic chemicals, and the Consumer Confidence Rule.
Violation history
Consumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
January 22, 2019 – November 18, 2021
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
June 1, 2015 – June 30, 2015
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
February 1, 2008 – February 29, 2008
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 2007 – November 30, 2007
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
April 1, 1998 – April 30, 1998
ResolvedMaximum Contaminant Level Violation, Acute (TCR)
Health-basedColiform (TCR)
April 1, 1998 – April 30, 1998
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
January 1, 1996 – October 17, 1997
ResolvedMonitoring, Regular
—Simazine
January 1, 1996 – March 31, 1996
ResolvedMonitoring, Regular
—Atrazine
January 1, 1996 – March 31, 1996
ResolvedMonitoring, Regular
—LASSO
January 1, 1996 – March 31, 1996
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
July 1, 1993 – December 31, 1993
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 1991 – November 30, 1991
Resolved
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 22, 2019 – November 18, 2021 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Archived |
| June 1, 2015 – June 30, 2015 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| February 1, 2008 – February 29, 2008 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| November 1, 2007 – November 30, 2007 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 1998 – April 30, 1998 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| April 1, 1998 – April 30, 1998 | Maximum Contaminant Level Violation, Acute (TCR) | Coliform (TCR) | Health-based | Resolved |
| January 1, 1996 – October 17, 1997 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 1996 – March 31, 1996 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 1996 – March 31, 1996 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 1996 – March 31, 1996 | Monitoring, Regular | LASSO | — | Resolved |
| July 1, 1993 – December 31, 1993 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| November 1, 1991 – November 30, 1991 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
Enforcement actions
- July 20, 2015State Compliance achieved2 linked violations
- June 19, 2015State Violation/Reminder Notice4 linked violations
- May 4, 2008State Compliance achieved4 linked violations
- April 1, 2008State Violation/Reminder Notice1 linked violation
- April 1, 2008State Public Notification requested1 linked violation
- December 24, 2007State Violation/Reminder Notice3 linked violations
- December 24, 2007State Public Notification requested3 linked violations
- April 19, 2007State Compliance achieved2 linked violations
- October 17, 1997State Compliance achieved1 linked violation
Last known contact on file (system is inactive)
ASH, WILLIAM R
614-888-9229
COLUMBUS, OH 43235