GRAIN VALLEY PWS
Missouri — Community Water System — PWSID: MO1010320
System Information
| PWSID | MO1010320 |
| System Name | GRAIN VALLEY PWS |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 07 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 7, 1980 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Missouri |
| City | GRAIN VALLEY |
| ZIP Code | 64029-0364 |
| Address | 711 MAIN |
| Organization | MARTIN, JAMES PATRICK |
| Phone | 816-847-0091 |
Population & Service
| Population Served | 16,000 |
| Service Connections | 6,052 |
Drinking Water Violations (30)
This water system has 30 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2015 | Jul 31, 2015 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2015 | — | |
| Jul 1, 2015 | Jul 31, 2015 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2015 | — | |
| Jul 1, 2015 | Jul 31, 2015 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2015 | — | |
| Jul 1, 2015 | Jul 31, 2015 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2015 | — | |
| Jul 1, 2007 | Jul 31, 2007 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2007 | — | |
| Jul 1, 2007 | Jul 31, 2007 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2007 | — | |
| Jul 1, 2007 | Jul 31, 2007 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2007 | — | |
| Jul 1, 2007 | Jul 31, 2007 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2007 | — | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2003 | — | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2003 | — | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2003 | — | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2003 | — | |
| Oct 1, 2001 | Oct 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2001 | — | |
| Oct 1, 2001 | Oct 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2001 | — | |
| Oct 1, 2001 | Oct 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2001 | — | |
| Jul 1, 2001 | — | Other | No | No | — | — | — | Resolved | Feb 19, 2003 | — | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1996 | — | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1996 | — | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1996 | — | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1996 | — | |
| Jul 1, 1994 | Jul 31, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 1994 | — | |
| Jul 1, 1994 | Jul 31, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 1994 | — | |
| Jul 1, 1994 | Jul 31, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 1994 | — | |
| Aug 1, 1993 | Aug 31, 1993 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 1993 | — | |
| Aug 1, 1993 | Aug 31, 1993 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 1993 | — | |
| Apr 1, 1993 | Apr 30, 1993 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 1993 | — | |
| Apr 1, 1993 | Apr 30, 1993 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 1993 | — | |
| Sep 1, 1992 | Sep 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1992 | — | |
| Sep 1, 1992 | Sep 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1992 | — | |
| Sep 1, 1992 | Sep 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1992 | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.