Manganese in Missouri well water
In Missouri, manganese was detected in 90% of 4,728 tested private well samples.
Manganese stains fixtures and laundry above 50 ug/L. EPA's health advisory is 300 ug/L; infants are the most sensitive, and newer research links elevated manganese to neurological effects in children. It is one of the most common private well problems in New England.
Check your manganese number
Type the value from your lab report. It is compared to the EPA limit, the same way the full interpretation does it.
Test your Missouri well for manganese
Certified lab analysis of your own tap water, bottles and prepaid return shipping included. The Essential well panel covers arsenic, uranium, nitrate, lead, copper, manganese, iron, sodium and bacteria; radon and PFAS are add-ons.
Order the Tap Score well water test kit, from $209Already tested? Upload the report
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Systems that remove manganese
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Some links below are affiliate links. If you buy through one, the merchant pays us a commission at no extra cost to you. It does not change which products we list or what the data says.
For manganese
Iron and manganese oxidizing filter
whole-house, at the point of entry, about $1,800
Air-injection or greensand media; fixes staining at the source.
Rather have it installed and sized for your well? Book a free in-home water test with a licensed local company.
Where to get a well tested for manganese in Missouri: certified labs, state programs and prices.
By county, from individual samples
Public monitoring samples against the EPA limit; counties with at least 30 samples.
| County | Above EPA limit | Samples | Detected | Median | Highest |
|---|---|---|---|---|---|
| Mississippi | no limit | 44 | 100% | 329 | 1,920 ug/L |
| Grundy | no limit | 33 | 100% | 100 | 3,900 ug/L |
| Scott | no limit | 41 | 100% | 100 | 1,650 ug/L |
| Macon | no limit | 78 | 100% | 4,450 | 32,000 ug/L |
| St. Louis | no limit | 73 | 100% | 40 | 4,600 ug/L |
| Clay | no limit | 121 | 100% | 398 | 7,440 ug/L |
| New Madrid | no limit | 63 | 100% | 30 | 1,490 ug/L |
| Jackson | no limit | 466 | 100% | 661 | 8,400 ug/L |
| Butler | no limit | 37 | 100% | 0 | 1,190 ug/L |
| Saline | no limit | 41 | 100% | 60 | 2,500 ug/L |
| Boone | no limit | 885 | 100% | 516 | 3,800 ug/L |
| Pemiscot | no limit | 40 | 100% | 228 | 3,500 ug/L |
| St. Francois | no limit | 125 | 99% | 33.2 | 4,180 ug/L |
| Jefferson | no limit | 113 | 99% | 0 | 1,400 ug/L |
| Reynolds | no limit | 63 | 98% | 43.6 | 1,570 ug/L |
- Chariton township, Macon County100% detected of 31
- Rock Bridge township, Boone County100% detected of 699
- Katy township, Boone County100% detected of 154
- Blue township, Jackson County100% detected of 437
- Chouteau township, Clay County100% detected of 106
- St. Francois township, St. Francois County100% detected of 64
- Narrows township, Macon County100% detected of 40
- Carroll township, Reynolds County98% detected of 57
- Randolph township, St. Francois County98% detected of 44
- Boone township, St. Charles County91% detected of 117
- New Haven township, Franklin County91% detected of 35
- Cullen township, Pulaski County83% detected of 83
- Roubidoux township, Pulaski County79% detected of 156
- Joplin township, Jasper County77% detected of 30
- Piney township, Pulaski County71% detected of 248
Sources
- Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. manganese counts and shares are listed on each county and town page with their sources.