CADET, MO · Washington County
GRANDVIEW PLAZA MHP Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of March 24, 2025. 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 Washington 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)
- MO6048248
- System type
- Community Water System
- Population served
- 179
- Service connections
- 46
- Ownership
- privately owned
- Water source
- groundwater (wells)
GRANDVIEW PLAZA MHP is one of 1,412 community water systems in Missouri in the 500 or fewer people size category, formerly serving 179 people from groundwater.
EPA's federal records list this system as inactive in 2025; the record below is historical.
As of August 1, 2026, its federal record holds 16 entries between 1995 and 2024, all of which EPA lists as closed.
Of the 16, 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, the Consumer Confidence Rule, and the Public Notice Rule and Revised PN Rule.
Violation history
Consumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
July 1, 2024 – September 17, 2024
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
October 3, 2023 – March 24, 2025
ArchivedFailure To Address Deficiency
Health-basedGroundwater Rule
August 1, 2023 – December 13, 2024
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
May 7, 2018 – July 6, 2018
ResolvedFailure To Address Deficiency
Health-basedGroundwater Rule
December 31, 2017 – January 3, 2019
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
May 1, 2015 – May 31, 2015
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2012 – October 25, 2013
ResolvedLead Consumer Notice
—Lead and Copper Rule
January 1, 2012 – January 7, 2019
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2011 – October 25, 2013
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 2010 – April 30, 2010
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2009 – July 25, 2011
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
September 1, 2009 – September 30, 2009
ResolvedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
August 1, 2009 – August 31, 2009
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 2005 – November 30, 2005
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 1996 – September 30, 1996
ArchivedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
May 1, 1995 – May 31, 1995
Resolved
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, 2024 – September 17, 2024 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| October 3, 2023 – March 24, 2025 | Public Notification Violation for NPDWR Violation | Public Notice | — | Archived |
| August 1, 2023 – December 13, 2024 | Failure To Address Deficiency | Groundwater Rule | Health-based | Resolved |
| May 7, 2018 – July 6, 2018 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| December 31, 2017 – January 3, 2019 | Failure To Address Deficiency | Groundwater Rule | Health-based | Resolved |
| May 1, 2015 – May 31, 2015 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 2012 – October 25, 2013 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2012 – January 7, 2019 | Lead Consumer Notice | Lead and Copper Rule | — | Resolved |
| July 1, 2011 – October 25, 2013 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| April 1, 2010 – April 30, 2010 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 2009 – July 25, 2011 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| September 1, 2009 – September 30, 2009 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| August 1, 2009 – August 31, 2009 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Resolved |
| November 1, 2005 – November 30, 2005 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| September 1, 1996 – September 30, 1996 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| May 1, 1995 – May 31, 1995 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
No enforcement actions on record for this system.
Last known contact on file (system is inactive)
JULIETTE, TYLER
573-330-4563
CADET, MO 63630-0000