Certified well water labs in Mississippi (2026)

WellTestList · Monday, September 21, 2026 · state page

MSU Extension’s private-well population work (Publication 2775, using 2018 Census and MSDH FY 2018 capacity data) estimated about 382,000 people — roughly 12.8 percent of Mississippi — on private wells. MSDH’s Division of On-Site Wastewater will send an environmentalist to sample for bacteria only. Chemistry, minerals, and PFAS go through a private / certified lab or a mail-in kit that emails a PDF.

The short version

Apply for MSDH private-well bacteria sampling — do not invent a self-drop path. Use the online application at healthyms.com/wwapply (or Form 1028 to wastewater@msdh.ms.gov). An environmentalist collects in a sterile bottle. The Public Health Lab path is total coliform, with E. coli follow-up if coliform is present.
Confirm the fee on the invoice before you pay — published numbers disagree. The live online app says an invoice of $10 + a processing fee will be emailed within one business day. Form 1028 (Rev. 8-7-17) still says $35 plus processing for electronic payments. Call 1-855-220-0192 if the invoice does not match what you expected.
For nitrate, metals, VOCs, or PFAS, leave the MSDH bacteria path. MSDH does not test private wells for minerals, chemicals, or other contaminants. Open the in-state participating labs list, call to confirm current certification and whether they accept private-well work, or use a mail-in kit that emails a PDF.

How Mississippi’s system actually works

Private wells are the homeowner’s job. The Safe Drinking Water Act does not cover those taps. MSDH’s Private Well Water Testing page is blunt: the department tests private wells for bacteriological contamination only; minerals, chemicals, and other contaminants go through a private laboratory. The service is for private wells only — not homes on public water.

MSU Extension Publication 3813 (Testing Residential Private Well Drinking Water, POD-08-25) walks the same path: call the MSDH Call Center / Division of On-Site Wastewater and ask for an environmentalist visit. The sample is analyzed at the MSDH state laboratory in Jackson for presence/absence of total coliform; if positive, a second test checks for E. coli. Extension lists three professional options: a private laboratory, MSDH On-Site Wastewater (1-855-220-0192), and the Mississippi Well Owner Network (662-325-1788).

Form 1028 authorizes the environmentalist to enter the property and take the sample. Results come back as a signed copy from the Division of On-Site Wastewater. That is a bacteria health check — not a chemistry panel, and not automatically a lender Certificate of Analysis.

MSDH’s Water Supply Laboratory Certification Program (last reviewed Feb 14, 2025 on the pages we checked) certifies in-state labs for drinking-water chemistry and microbiology and honors reciprocity for qualified out-of-state labs. The public In-State Participating Labs list is short. Certification contact: (601) 576-7582 (Janet Hartin listed as MS Certifying Authority). The list mixes commercial labs with utility, industrial, and federal facilities — certification is not a promise of walk-up hours or homeowner acceptance.

The Mississippi Well Owner Network is free educational training for private-well owners. Programs may include an E. coli screen at the workshop. Treat that as educational / screening context — not a substitute for an annual certified analysis when you need a Certificate of Analysis. Extension’s own sample instructions for that screening path say collect no more than 12 hours before drop-off.

CDC and EPA both frame the annual minimum as total coliform bacteria, nitrates, total dissolved solids, and pH, plus whatever is a local problem. EPA’s national page still points at a PDF of state certification programs.

Options we verified

Fees and rules live on the MSDH private-well page, the live online application, Form 1028, the in-state participating labs page, MSU Extension publications, and the mail-in product pages. What we could verify with a public URL tonight:

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Verified September 21, 2026. Prices are what the pages listed that day. Call before you book. MSDH fee language disagrees between the live online app ($10 + processing) and Form 1028 Rev. 8-7-17 ($35) — re-check the invoice.
Option	What they offer	Listed cost	Catch
MSDH On-Site Wastewater bacteria path	Environmentalist collects a sterile-bottle sample from your private well. Public Health Lab path: total coliform presence/absence; E. coli follow-up if coliform is present. Apply online or via Form 1028. Call Center: 1-855-220-0192.	Live online app (Sep 21, 2026): invoice of $10 + a processing fee emailed within one business day. Form 1028 (Rev. 8-7-17): $35.00 (+ processing for electronic payments). Confirm the invoice.	Bacteria only. No minerals, chemicals, or other contaminants on this path. Not for homes on public water. Environmentalist collection — not a BCL-style Mon–Thu self-drop we could verify. Ask how a written copy arrives if you need a file.
MSDH in-state participating labs	Official list (last reviewed Feb 14, 2025 on the page we checked): Bonner Analytical Testing (Hattiesburg, micro), Micro-Methods Laboratory (Ocean Springs, chemistry + micro), plus utility / industrial / federal entries (City of Meridian plant, Huntington Ingalls Pascagoula, NASA Stennis). Certification office: (601) 576-7582.	Ask for a quote. We are not inventing a statewide commercial price book.	Lists include utility, industrial, and federal labs. “Certified” ≠ walk-up hours or private-well acceptance. Verify current certification and homeowner acceptance before you drive. Prefer the live list over this summary if anything looks stale.
Commercial examples on tonight’s MSDH list (examples only)	Names that appear on the official in-state page with chemistry and/or microbiology: Bonner Analytical Testing, Inc. (Hattiesburg, (601) 264-2854, micro) and Micro-Methods Laboratory (Ocean Springs, (228) 875-6420, chemistry + micro). Contact fields are on the MSDH page.	Ask each lab. No prices on the MSDH list.	Examples from the official list — not a claim that either accepts private-well walk-ups tonight. Call first. We did not invent hours from memory.
Separate county health fee schedule	We searched for a published county-level homeowner well-test fee page distinct from MSDH’s statewide On-Site Wastewater path.	None found tonight.	Mississippi’s published homeowner bacteria path is the MSDH environmentalist service. Do not invent a county price from another state.

MSDH will not analyze nitrate, metals, VOCs, pesticides, or PFAS on the private-well bacteria path. MSWON workshop E. coli screens are educational / screening — not a substitute for a certified Certificate of Analysis when a lender or regulator named one.

What Mississippi guidance actually warrants

Match the panel to the land. MSDH, MSU Extension, EPA private-well pages, and CDC testing guidance line up on the core schedule:

Every year: total coliform bacteria (MSDH On-Site Wastewater path when an environmentalist visit works). Nitrate every year, and always before the water goes to an infant under six months — nitrate is chemistry, so use a certified chemical lab or mail-in, not the MSDH bacteria path.
After a flood, well work, a dry-then-recovered well, or a change in taste / color / odor: bacteria first. See our after-a-flood guide. Extension also publishes coliform follow-up and disinfection guidance.
Metals, hardness, iron staining, or lead from plumbing: a lab on MSDH’s participating list that does chemistry (or reciprocity / mail-in). Not the On-Site Wastewater bacteria path.
Near tanks, industry, agriculture spray programs, or known spills: ask a certified commercial lab about VOCs, herbicides, or pesticides.
PFAS concern: MDEQ’s PFAS Information page describes statewide evaluation and federal-facility assessment. We found no Mississippi private-well PFAS free-testing program tonight. Use a lab that offers Method 533 / 537.1, or a mail-in PFAS panel. Details: PFAS Method 533 / 537.1.
Lead: plumbing is the usual source, not the aquifer. Flush cold water; never cook from the hot tap; only a certified analysis measures it.

When the Certificate of Analysis or the MSDH written results arrive, more: how to read a well water report.

Hardware-store strips are screening-only. They are not an annual well test and they are not what a lender means by “tested.”

Hold times and collection

On the MSDH private-well path, an environmentalist collects the sample — we did not find a published Mon–Thu self-drop receiving schedule like Alabama’s BCL form. Plan around the appointment the Division of On-Site Wastewater schedules, not around Saturday free time with a borrowed bottle.

If you are using an Extension / MSWON screening drop instead, Extension’s sample instructions say collect immediately before drop-off and no more than 12 hours before. That is workshop screening guidance — not Form 1028 language. More on bacteria clocks after weather events: what to test after a flood.

Mail-in kits that work from Mississippi

Independent mail-in labs ship to and from Mississippi as ordinary domestic US kits. They email a PDF. They are not selling you a softener in the same breath. For a lender or local compliance ask, confirm the analyzing lab meets what the underwriter named. Listed prices we checked on September 21, 2026:

Tap Score / SimpleLab Essential Well: $209 listed (54 analytes; standard shipping and prepaid return on the product page).
National Testing Laboratories WaterCheck Basic: $220 listed plus free delivery on watercheck.com. Next-day return shipping is not included. Budget for overnight return on the bacteria bottle.

Those are listed prices, not coupons. Kits change. Read the current product page before you buy. If the MSDH bacteria path covers your question — and the invoice fee is still what you expected — check that path before you spend $200 on a national kit for the same core bacteria question. For nitrate and metals, mail-in or an MSDH-listed chemical lab is the honest next step.

Side by side for a Mississippi well

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Typical paths for a Mississippi private well in 2026. Not a bid.
	MSDH On-Site Wastewater bacteria	MSDH certified commercial / chem	Mail-in (Tap Score / NTL)
Best for	Low-cost annual bacteria when an environmentalist visit works	Nitrate, metals, VOCs, PFAS, lender-named labs, walk-in when hours fit	Broader baseline panel and a PDF when local scheduling does not fit
PDF?	Written MSDH / Division results. Ask how a copy arrives if you need a digital file.	Yes — ask for the emailed Certificate of Analysis	Yes. Email is the product
Sales visit?	No	No, if you stay with an independent lab	No
Lender / CoC?	Bacteria health check — do not assume it meets mortgage / underwriter language. Ask before you treat it as the closing test.	Often what the underwriter named. Confirm certification scope (microbiology vs chemistry vs PFAS) before you sample	Sometimes not. Ask before you sample. See home purchase / lender CoC

Real estate and lenders

Ask the underwriter what parameters and which lab they will accept, then use an MSDH-listed commercial lab (or the named lab on the loan conditions) for anything beyond a personal health file. Confirm the lab, the analyte list, certification scope, and the chain-of-custody form before you fill a bottle. An MSDH coliform result can be a perfectly good health check and still bounce at the bank if the loan asked for a chemistry panel or a named lab. More: home purchase / lender chain of custody.

Remind me to test my well every year

CDC and EPA say to test a private well at least once a year. We’ll send one email a year, about when your test is due, with your state’s lab options.

Thanks, you’re on the list. We’ll email you once a year when it’s time to test your well. Nothing else.

What to do in Mississippi

Apply online at healthyms.com/wwapply or call 1-855-220-0192 for MSDH On-Site Wastewater bacteria sampling.
Bacteria: use the MSDH environmentalist path. Confirm the invoice fee ($10 online note vs $35 on Form 1028 — verify before you pay).
Nitrate, metals, or a broader panel: open MSDH’s in-state participating labs list, call (601) 576-7582 to verify certification, or use mail-in. MSDH’s private-well path will not do chemistry.
PFAS: no MS private-well free PFAS program found tonight. Buy a Method 533 / 537.1 mail-in panel, or ask a commercial lab that offers those methods.
If you want a broader PDF this month and environmentalist scheduling does not fit, use Tap Score / SimpleLab or National Testing Laboratories (Watercheck).
Match the panel to the land. Bacteria every year. Nitrates every year, especially before a newborn. After a flood, start with disinfection and bacteria.

Not this if…

A lender named a local lab and a chain-of-custody form. Use that lab. Do not substitute an MSDH bacteria result and hope.
Someone offered a free in-home “test” that ends in a softener pitch. That is not on this page. See the Home Depot free-kit comparison.
You only wanted a strip from the hardware aisle. Fine as screening-only. It is not a certified analysis.
You planned to drop a chemistry bottle at MSDH On-Site Wastewater. That path does not test minerals, chemicals, or other contaminants. That is the rule on the application, not rudeness.
You expected a full statewide commercial phone book with hours and “yes we take homeowners.” We refused to invent one from memory. MSDH’s Feb 14, 2025-reviewed list plus a phone call are the honest path until we verify individual walk-up hours.
You treated an MSWON workshop E. coli screen as a certified drinking-water Certificate of Analysis. Extension frames the network as free educational training with optional screening at programs. Screening-only in that context.
You assumed every name on the MSDH list (Huntington Ingalls, Meridian plant, NASA) will take a homeowner walk-up. The list mixes commercial, utility, industrial, and federal labs. Call first.
You paid $35 from Form 1028 without checking the live $10 invoice note — or the reverse. Confirm the current invoice before you treat either number as permanent.