Iron in Louisiana well water
In Louisiana, iron was detected in 98% of 13,920 tested private well samples.
Iron is a nuisance rather than a health hazard: rust stains, metallic taste, and clogged fixtures above 300 ug/L. It often occurs with manganese and can feed iron bacteria that foul plumbing.
Check your iron 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 Louisiana well for iron
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 iron
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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 iron
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 iron in Louisiana: 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 |
|---|---|---|---|---|---|
| East Carroll | no limit | 64 | 100% | 1,250 | 176,000 ug/L |
| Winn | no limit | 152 | 100% | 100 | 170,000 ug/L |
| Tensas | no limit | 49 | 100% | 11,100 | 126,000 ug/L |
| St. Charles | no limit | 198 | 100% | 595 | 27,000 ug/L |
| St. Mary | no limit | 37 | 100% | 1,000 | 10,000 ug/L |
| West Carroll | no limit | 92 | 100% | 1,200 | 43,000 ug/L |
| Caldwell | no limit | 116 | 100% | 1,150 | 103,000 ug/L |
| Ouachita | no limit | 278 | 100% | 90 | 118,000 ug/L |
| Jackson | no limit | 110 | 100% | 145 | 15,000 ug/L |
| Iberia | no limit | 55 | 100% | 2,000 | 331,010 ug/L |
| St. Landry | no limit | 244 | 100% | 570 | 236,000 ug/L |
| Madison | no limit | 58 | 100% | 7,650 | 147,000 ug/L |
| Lincoln | no limit | 135 | 100% | 200 | 3,500 ug/L |
| Avoyelles | no limit | 547 | 100% | 3,000 | 134,000 ug/L |
| Morehouse | no limit | 282 | 100% | 200 | 348,000 ug/L |
- District 10, Ascension Parish100% detected of 52
- District 3, Ascension Parish100% detected of 110
- District G, Rapides Parish100% detected of 219
- District 1, Sabine Parish100% detected of 32
- District F, Rapides Parish100% detected of 137
- District D, Rapides Parish100% detected of 78
- District 7, Avoyelles Parish100% detected of 40
- District A, Rapides Parish100% detected of 69
- District 2, Avoyelles Parish100% detected of 34
- District 1, Caddo Parish100% detected of 265
- District 8, Caddo Parish100% detected of 81
- District 4, Avoyelles Parish100% detected of 63
- District 1C, De Soto Parish100% detected of 36
- District 3, Avoyelles Parish100% detected of 199
- District 1, Avoyelles Parish100% detected of 111
- District 3, Grant Parish100% detected of 248
- District 1, Bienville Parish100% detected of 31
- District 1, Jefferson Parish100% detected of 30
- District 2, Jefferson Parish100% detected of 44
- District 1, St. John the Baptist Parish100% detected of 40
Sources
- Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. iron counts and shares are listed on each county and town page with their sources.