Well Water Nerd

Well water testing in Mississippi

Nobody tests a private well unless the owner does. In Mississippi, the public record says to start with arsenic, nitrate, fluoride, then bacteria every year. Below: what to order, where, what it costs, and the county-by-county results that set the order.

What to test for first

  1. 1
    Arsenic
    5% of 317 local samples were above the limit.
  2. 2
    Nitrate
    1% of 4,108 local samples were above the limit.
  3. 3
    Fluoride
    <1% of 3,836 local samples were above the limit.
  4. 4
    Radium (226 + 228)
    <1% of 276 local samples were above the limit.
  5. 5
    Coliform bacteria
    Recommended for every private well, every year.

Test your Mississippi well for arsenic, nitrate and fluoride

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

Just want bacteria checked first? Tap Score coliform and E. coli test, $99. Coliform and E. coli are the tests every well needs every year.

Want a quick look before paying for a lab? Home well water test strips on Amazon check hardness, iron, pH and nitrate in minutes. They are a screen, not a result: arsenic, bacteria, uranium and PFAS need a certified lab.

Affiliate links: the merchant pays us a commission and the price is the same for you. It does not change what the data above says. As an Amazon Associate we earn from qualifying purchases.

Where to get it tested

Three routes, and all of them work. A mail-in kit from a certified lab is the simplest: the lab ships bottles, you fill them at the kitchen tap, and results come back by email. The full panel above is $209.

A local certified lab is the second route. Water Supply Certification: In-State Participating Labs from Mississippi State Department of Health lists every lab certified for drinking water in Mississippi. Call ahead: some take walk-in samples, some ship bottles.

The Mississippi State Department of Health samples and tests private wells for bacteriological contamination only, requested through an online application, with an invoice of $10 plus a processing fee. Details from the state

Free or low-cost testing: Mississippi State University Extension's Mississippi Well Owner Network holds free training programs for private well owners, who can have their water screened for E. coli bacteria at each program. How to get it

For questions about your well, Private Wells at Mississippi State Department of Health is the official source.

Already have results? Get the lab report read line by line, $29.

Testing by county

The contaminant most often over its limit in each county's public record, highest share first. Open a county for the full test list and its towns.

CountyTest first forOver the limit
Hinds CountyFluoride7%
Lincoln CountyNitrate6%
Bolivar CountyNitrate6%
Marshall CountyNitrate6%
Jones CountyNitrate5%
Marion CountyFluoride5%
Lamar CountyNitrate5%
Rankin CountyFluoride3%
Warren CountyFluoride3%
Webster CountyFluoride3%
Smith CountyNitrate3%
Winston CountyFluoride3%
Monroe CountyNitrate2%
Calhoun CountyFluoride1%
Itawamba CountyNitrate1%
Forrest CountyFluoride1%
Washington CountyNitrate<1%
Tishomingo CountyFluoride<1%
Harrison CountyFluoride<1%
Adams CountyFluoride0%
Alcorn CountyFluoride0%
Attala CountyFluoride0%
Chickasaw CountyFluoride0%
Clarke CountyFluoride0%
Coahoma CountyFluoride0%
Franklin CountyFluoride0%
Hancock CountyNitrate0%
Holmes CountyNitrate0%
Issaquena CountyNitrate0%
Jackson CountyFluoride0%
Jasper CountyFluoride0%
Kemper CountyNitrate0%
Lauderdale CountyNitrate0%
Leake CountyFluoride0%
Lee CountyNitrate0%
Leflore CountyFluoride0%
Lowndes CountyFluoride0%
Madison CountyFluoride0%
Noxubee CountyNitrate0%
Perry CountyNitrate0%
Prentiss CountyNitrate0%
Sharkey CountyFluoride0%
Sunflower CountyFluoride0%
Wayne CountyFluoride0%
Yalobusha CountyNitrate0%
Yazoo CountyNitrate0%

Closer than the county: see the sampled wells near your address.

Free, no obligation

Get on the list for a free in-home water test in Mississippi

We are signing licensed water treatment companies county by county. They test at your tap for free, walk you through the numbers, and quote treatment only if something needs fixing. Nothing is shared until a company joins for your area, and you get an email naming it first.

What are you worried about?

The test is free and there is no obligation. No company is named yet; your details stay with us until one joins for your area, and we log the time and address of this request.

Common questions

What should I test my well for in Mississippi?

Start with arsenic, nitrate, fluoride. 5% of 317 local samples were above the limit. Add total coliform bacteria and nitrate every year for any private well.

Where can I get my well water tested in Mississippi?

Use a lab certified for drinking water. Mississippi State Department of Health keeps the list of certified labs. A mail-in kit from a certified lab works anywhere in the state.

How much does well water testing cost in Mississippi?

A full mail-in panel from a certified lab costs $209 (Tap Score well water test kit). A bacteria-only test costs $99 (Tap Score coliform and E. coli test). The Mississippi State Department of Health samples and tests private wells for bacteriological contamination only, requested through an online application, with an invoice of $10 plus a processing fee.

Is there free well water testing in Mississippi?

Mississippi State University Extension's Mississippi Well Owner Network holds free training programs for private well owners, who can have their water screened for E. coli bacteria at each program.

How often should a private well be tested?

Bacteria and nitrate every year. A full panel once, then again after flooding, a change in taste, smell or color, work on the well, a new baby in the house, or a nearby result above the limit. Contaminants that come from the rock, like arsenic, radon and uranium, change slowly, so one good test and a check every few years is enough.