Certified well water labs in South Carolina (2026)
South Carolina does not regulate the water quality of private wells. SCDES still sells cheap residential kits — $20 for coliform, $50 for metals and minerals — accepts bottles Monday through Wednesday only, and will not take metals samples from June 1 through October 1, 2026. That blackout is still open tonight. Here is the kit path, CELMapp for certified commercial labs, the private-well PFAS assessment application, and mail-in kits that email a PDF.
The short version
- Pick up an SCDES residential kit at a Regional Office or local Health Department. Coliform is $20. Metals and minerals are $50 when the lab is accepting them. Return the bottle Monday, Tuesday, or Wednesday only. Do not pay at drop-off — the invoice comes with the mailed results.
- If you need metals before October 1, 2026, do not wait on SCDES. The metals/minerals blackout runs June 1 – October 1, 2026. Use CELMapp (Drinking Water → Trace Metals), email labcerthelp@des.sc.gov, or a mail-in kit that emails a PDF.
- For VOCs, herbicides, pesticides, lender panels, or a named commercial lab, SCDES points you to a commercial laboratory. Filter CELMapp for Drinking Water → Microbiology or Trace Metals, then call. SCDES says its residential kits are not recommended for real-estate transactions.
How South Carolina’s system actually works
Private wells are the homeowner’s job. The Safe Drinking Water Act does not cover those taps. SCDES’s own Well Water Quality Testing Services page is blunt in all caps: SCDES does not regulate the water quality of private wells, and it is recommended that these tests are not used for real-estate transactions. The kits are a health file and a cheap annual screen, not a closing path unless a lender says otherwise after you ask.
CDC and EPA both frame the annual minimum as total coliform bacteria, nitrates, total dissolved solids, and pH, plus whatever is a local problem. SCDES Office of Environmental Laboratory Certification certifies commercial labs for drinking-water work; the live consumer map is CELMapp. Listings are general — they do not spell out every analyte and method — so verify with the lab or labcerthelp@des.sc.gov before you drive with a bottle. EPA’s national page still points at a PDF of state certification programs.
Clemson Extension’s HGIC 3870 (revised November 5, 2025) walks through the same SCDES kit path and publishes a contact sheet of certified commercial laboratories for Total Coliform / E. coli “as of November 2025.” Treat that sheet as a phone list, then confirm Drinking Water scope on CELMapp. Clemson’s own diagnostic lab does not analyze potable drinking water.
Options we verified
Fees and rules live on the SCDES residential testing page, the PFAS program pages, and the mail-in product pages. What we could verify with a public URL tonight:
The table scrolls sideways on a phone.
| Option | What they offer | Listed cost | Catch |
|---|---|---|---|
| SCDES residential coliform kit | Total coliform; if positive, the same sample is checked for E. coli. Kit from a local SCDES Regional Office or Health Department (form, sterile bottle, instructions). Results by mail in about two to three weeks with an explanation. | $20 per test. Free once a year for age 65+ or public assistance (with proof). First coliform free if you applied for a private well permit. | Samples accepted Monday–Wednesday only. Do not pay at drop-off. Not recommended for real-estate transactions. Toll-free 1-888-761-5989; Josh Zodarecky 803-898-3232; Greg Withycombe 864-359-3737; 2600 Bull St, Columbia. |
| SCDES residential metals & minerals kit | Alkalinity, calcium, chloride, copper, hardness, iron, lead, magnesium, manganese, nitrate/nitrite, pH, and zinc. Results by mail in about six to eight weeks with a booklet. Optional extras (fluoride, sodium, TDS, and similar) at $25 each. | $50 per sample when the lab is accepting metals. Same 65+ / public-assistance waiver path as bacteria when available. | Not accepted June 1 – October 1, 2026. Tonight (September 19) is still inside that blackout. Need metals now? Use CELMapp Trace Metals or a mail-in kit. Same Mon–Wed return rule and invoice-with-results rule as bacteria. |
| SCDES private-well PFAS assessment | Application for staff or contractor sampling of an individual private drinking-water well. If selected after an initial evaluation, sampling and analysis are at no cost to the owner. If PFAS are detected, filtration or funding to connect to public supply may be available. | Application is free. Sampling is free if selected. | Prioritization by aquifer vulnerability, well susceptibility, and proximity to known PFAS sources — not a guaranteed appointment. FAQ and Spanish application are linked from the PFAS hub. Bureau contact listed for the private-well strategy: Ray Holberger, 803-608-0875, Ray.Holberger@des.sc.gov. Method details for a paid commercial PFAS panel: PFAS Method 533 / 537.1. |
| CELMapp — SCDES certified commercial labs | Official map and tabular list of commercial environmental laboratories certified by SCDES Office of Environmental Laboratory Certification. Filter Drinking Water, then Microbiology (bacteria) or Trace Metals (lead / metals). Export to CSV from Options. Clemson’s HGIC 3870 also publishes a Nov 2025 Total Coliform / E. coli contact sheet as a secondary phone list. | Ask for a quote. We are not inventing a statewide commercial price book. | CELMapp listings are general — they do not list every analyte and method. Verify with the lab or labcerthelp@des.sc.gov. “Certified” is not a promise of walk-up hours or private-well acceptance. We did not invent named commercial rows from memory tonight; open CELMapp, filter, then call. |
SCDES will not analyze VOCs, herbicides, pesticides, or other synthetic organics on the residential kit path — contact a commercial laboratory. Ambient samples and public-water-system samples are not accepted on the residential fee schedule.
What South Carolina guidance actually warrants
Match the panel to the land. SCDES’s residential kit menu, EPA private-well pages, and CDC testing guidance line up on the core schedule:
- Every year: total coliform bacteria (the SCDES $20 kit covers that path when Mon–Wed works). Nitrate every year, and always before the water goes to an infant under six months — nitrate/nitrite is on the SCDES metals/minerals panel when that kit is open.
- After a flood, well work, a dry-then-recovered well, or a change in taste / color / odor: bacteria first, on the hold-time clock. See our after-a-flood guide.
- Metals, hardness, iron staining, or lead from plumbing: SCDES metals kit when open; CELMapp Trace Metals or mail-in during the June 1 – October 1 blackout.
- Near tanks, industry, agriculture spray programs, or known spills: ask a commercial lab about VOCs, herbicides, or pesticides. SCDES residential kits do not cover those.
- PFAS concern: apply for the SCDES private-well assessment first if you want the no-cost path when selected; otherwise buy a Method 533 / 537.1 panel from a lab that has that scope. 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 SCDES mailed packet arrives, 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 the seasonal catch
SCDES accepts residential samples Monday, Tuesday, and Wednesday only. Plan the collection around those receiving days, not around Saturday free time. Bacteria results typically take two to three weeks by mail; metals take six to eight weeks on the residential page (another SCDES lab page frames metals closer to eight to twelve weeks — either way, do not expect overnight).
The metals blackout is the bigger trap this season: no metals/minerals samples from June 1 through October 1, 2026. Bacteria kits can still move on Mon–Wed. If you need lead, iron, nitrate, hardness, or the rest of that metals panel before October 1, use CELMapp Trace Metals or a mail-in kit now. More on bacteria clocks after weather events: what to test after a flood.
Mail-in kits that work from South Carolina
Independent mail-in labs ship to and from South Carolina 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 — SCDES itself says its residential kits are not recommended for real-estate transactions. Listed prices we checked on September 19, 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 SCDES $20 bacteria path covers your question and Mon–Wed works, check that path before you spend $200 on a national kit for the same core analytes. During the metals blackout, mail-in or CELMapp is often the faster metals answer.
Side by side for a South Carolina well
The table scrolls sideways on a phone.
| SCDES residential kit | CELMapp commercial lab | Mail-in (Tap Score / NTL) | |
|---|---|---|---|
| Best for | Cheap annual bacteria ($20) and, outside the June–Oct blackout, the $50 metals panel | VOCs / organics, lender-named labs, metals during the SCDES blackout, walk-in when hours fit | Broader baseline panel and a PDF when Mon–Wed or the metals blackout does not fit |
| PDF? | Results by mail (weeks). 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? | SCDES says these kits are not recommended for real-estate transactions. Ask the underwriter before you treat a mailed SCDES slip as the closing test | Often what the underwriter named. Confirm certification scope (microbiology vs chemistry) before you sample | Sometimes not. Ask before you sample. See home purchase / lender CoC |
Real estate and lenders
SCDES prints the answer on the residential testing page: these kits are not recommended for real-estate transactions, and SCDES does not regulate private-well quality. Ask the underwriter what parameters and which lab they will accept, then use a CELMapp-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. A $20 coliform kit can be a perfectly good health check and still bounce at the bank. 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 South Carolina
- Call or visit your local SCDES Regional Office or Health Department for a residential kit. Plan return for Monday–Wednesday.
- Bacteria: budget about $20 (or use the 65+ / assistance / new-permit free paths if you qualify). Do not pay at drop-off.
- Metals: if you need them before October 1, 2026, skip the SCDES metals kit for now. Open CELMapp, filter Drinking Water → Trace Metals, call, or use mail-in.
- PFAS: submit the Individual Private Well PFAS Assessment Application if you want the no-cost path when selected. Questions: Ray Holberger, 803-608-0875.
- If you want a broader PDF this month and Mon–Wed or the metals blackout 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 SCDES residential kit and hope — SCDES says those kits are not recommended for real-estate transactions.
- 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 metals bottle at SCDES in September 2026. The metals blackout runs through October 1. That is the seasonal rule, not rudeness.
- You expected a full statewide commercial phone book with hours and “yes we take homeowners.” We refused to invent one from memory. CELMapp plus a phone call (or labcerthelp@des.sc.gov) is the honest path until we verify individual walk-up hours.
- You assumed a PFAS application guarantees sampling next week. Applications are prioritized; selection is not automatic. Do not invent wait times from this page.
Related: Alabama · Tennessee · North Carolina · Georgia · Florida · Virginia · PFAS 533 / 537.1 · how to read a report · cost table · Home Depot free kit vs a certified lab · How it works · back to the directory.