Public water system record
Walnut Grove MHP
Serves an area of St. Francois County, MO · 210 people served
Federal records show no health-based violations and no monitoring or reporting issues for Walnut Grove MHP in the last ten years.
System profile
Source water
Groundwater
ZIP
63755
EPA system ID
MO4041308
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Walnut Grove MHP draws water from 1 well.
- Most recent formal enforcement: consent decree or court judgment by Missouri, April 2011.
- Record on file since 2002, with 52 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 66 service lines.
Check whether Walnut Grove MHP serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016, and no monitoring or reporting violations either.
Full record since 2002
EPA's records for Walnut Grove MHP go back to 2002. Before October 19, 2016 they list 52 health-based violations (52 resolved) and 13 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 52 | 13 |
Most recent health-based violation before October 19, 2016: Combined Radium (-226 and -228), began October 2009, Resolved.
Show all 52 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.2 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
Oct 1, 2009 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.07 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
Jul 1, 2009 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.67 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Jul 1, 2009 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.3 pCi/L, federal limit 5 pCi/L (2.5 times the limit)
|
Apr 1, 2009 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23.07 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Apr 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2009 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.67 pCi/L, federal limit 5 pCi/L (2.5 times the limit)
|
Jan 1, 2009 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.73 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Jan 1, 2009 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
|
Oct 1, 2008 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.5 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
Oct 1, 2008 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23.05 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Jul 1, 2008 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.9 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
|
Jul 1, 2008 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.35 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
|
Apr 1, 2008 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.3 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
Apr 1, 2008 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.17 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
Jan 1, 2008 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.37 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
Jan 1, 2008 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.7 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
Oct 1, 2007 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.73 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
Oct 1, 2007 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.87 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
Jul 1, 2007 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.43 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
Jul 1, 2007 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.83 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
Apr 1, 2007 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.73 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
Apr 1, 2007 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.47 pCi/L, federal limit 5 pCi/L (2.5 times the limit)
|
Jan 1, 2007 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.51 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Jan 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2006 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.63 pCi/L, federal limit 5 pCi/L (2.5 times the limit)
|
Oct 1, 2006 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23.37 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
|
Oct 1, 2006 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23.53 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
|
Jul 1, 2006 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.05 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
|
Jul 1, 2006 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.43 pCi/L, federal limit 5 pCi/L (2.5 times the limit)
|
Apr 1, 2006 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23.32 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
|
Apr 1, 2006 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.82 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
Oct 1, 2005 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 24.13 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
|
Oct 1, 2005 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.7 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
Jul 1, 2005 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.7 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Jul 1, 2005 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.6 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
Apr 1, 2005 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.35 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Apr 1, 2005 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.6 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
Jan 1, 2005 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.5 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
Jan 1, 2005 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.7 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
Oct 1, 2004 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.5 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
Oct 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.5 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
|
Jul 1, 2004 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
Jul 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.6 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
Apr 1, 2004 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.2 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
Apr 1, 2004 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.6 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
Jan 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.7 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
|
Jan 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.7 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
|
Oct 1, 2003 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.52 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
Oct 1, 2003 | Resolved |
2 older violations are not listed here. EPA ECHO has the complete list.
Enforcement actions
Missouri regulators took 3 formal enforcement actions against Walnut Grove MHP between 2004 and 2011. The most recent was a consent decree or court judgment in April 2011.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 15, 2011 | Missouri | Consent decree or court judgment | 32 violations (25 health-based): Combined Radium (-226 and -228), Radium-226, Gross Alpha, Excl. Radon and U, Total Coliform, Combined Uranium |
| Dec 26, 2005 | Missouri | Signed compliance agreement | 41 violations (40 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228), Consumer Confidence Rule, Total Coliform |
| Feb 20, 2004 | Missouri | Signed compliance agreement | 2 violations: Lead and Copper Rule, Total Coliform |
Where the water comes from
Walnut Grove MHP draws water from 1 well.
Annual water quality report
Walnut Grove MHP must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Walnut Grove MHP for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Missouri.
Certified drinking water labs by state EPA guidance for private wells