Well Water Nerd

Well water testing in Arkansas

Nobody tests a private well unless the owner does. In Arkansas, the public record says to start with nitrate, E. coli, arsenic, 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
    Nitrate
    6% of 4,042 local samples were above the limit.
  2. 2
    E. coli
    6% of 51 local samples were above the limit.
  3. 3
    Arsenic
    3% of 1,621 local samples were above the limit.
  4. 4
    Lead
    <1% of 1,786 local samples were above the limit.
  5. 5
    Fluoride
    <1% of 2,826 local samples were above the limit.

Test your Arkansas well for nitrate, E. coli and arsenic

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.

The Arkansas Department of Health Water Microbiology Laboratory tests private well water for total coliform bacteria and E. coli at $17 per sample, using a collection kit from the local health unit. Details from the state

For questions about your well, Water Microbiology Laboratory at Arkansas 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
Pope CountyNitrate33%
Yell CountyNitrate30%
Woodruff CountyArsenic28%
Crawford CountyNitrate24%
Lonoke CountyArsenic18%
Conway CountyNitrate17%
Washington CountyNitrate13%
Hot Spring CountyNitrate13%
Drew CountyNitrate12%
Little River CountyNitrate12%
Franklin CountyNitrate10%
Ouachita CountyNitrate10%
Lincoln CountyNitrate9%
White CountyNitrate6%
Jefferson CountyArsenic5%
Craighead CountyNitrate5%
Benton CountyNitrate5%
Logan CountyNitrate4%
Pulaski CountyNitrate3%
Faulkner CountyNitrate3%
Mississippi CountyNitrate3%
Miller CountyNitrate3%
Nevada CountyNitrate3%
Monroe CountyArsenic3%
Clay CountyFluoride3%
Greene CountyNitrate3%
Garland CountyLead2%
Grant CountyNitrate2%
Van Buren CountyNitrate2%
Fulton CountyLead2%
Hempstead CountyNitrate2%
Poinsett CountyNitrate2%
St. Francis CountyNitrate2%
Sevier CountyNitrate2%
Union CountyLead2%
Marion CountyNitrate<1%
Desha CountyNitrate<1%
Arkansas CountyFluoride0%
Ashley CountyFluoride0%
Boone CountyArsenic0%
Chicot CountyFluoride0%
Columbia CountyFluoride0%
Crittenden CountyFluoride0%
Cross CountyFluoride0%
Howard CountyNitrate0%
Jackson CountyFluoride0%
Lawrence CountyFluoride0%
Lee CountyFluoride0%
Prairie CountyFluoride0%
Searcy CountyNitrate0%
Sharp CountyArsenic0%

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 Arkansas

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 Arkansas?

Start with nitrate, E. coli, arsenic. 6% of 4,042 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 Arkansas?

Use a lab certified for drinking water. A mail-in kit from a certified lab works anywhere in Arkansas.

How much does well water testing cost in Arkansas?

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 Arkansas Department of Health Water Microbiology Laboratory tests private well water for total coliform bacteria and E. coli at $17 per sample, using a collection kit from the local health unit.

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.