Arsenic Water Testing Labs in South Carolina (10 state-certified labs)
Labs on South Carolina's official certification list that test drinking water for arsenic, with the ones that take homeowner samples first.
10 named for arsenic itself on the list.
Per the state list or a state web page. Call to confirm.
Located outside South Carolina but on its list.
USGS estimate for South Carolina.
How many labs test for arsenic in South Carolina
10 labs on South Carolina's official drinking-water lab list are certified to test for arsenic. All 10 are named for arsenic on the list. The South Carolina list does not say which labs take samples from homeowners, so call a lab before you send one. 5 are located outside South Carolina.
The list is published by the South Carolina Department of Environmental Services (SCDES) - Bureau of Regional Laboratory Services, Office of Environmental Laboratory Certification. List version on file: no date printed; CELMAPP data last refreshed 2026-10-10 (LastRefreshDate of SCDES's details table). Fetched 2026-11-03 (UTC).
South Carolina labs certified for arsenic
| Lab | Location | Arsenic certification | Public samples | Cert. expiry |
|---|---|---|---|---|
| ALLIANCE TECHNICAL GROUP LLC - GREENVILLE | Greenville, SC | Named on the official list | Public samples: ask the lab | Not on the list |
| DAVIS & BROWN INC | Florence, SC | Named on the official list | Public samples: ask the lab | Not on the list |
| EUROFINS LANCASTER LABORATORIES ENVIRONMENT TESTING LLC | Lancaster, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| EUROFINS ORLANDO | Altamonte Springs, FL | Named on the official list | Public samples: ask the lab | Not on the list |
| EUROFINS SOUTH BEND | South Bend, IN | Named on the official list | Public samples: ask the lab | Not on the list |
| GEL LABORATORIES LLC | Charleston, SC | Named on the official list | Public samples: ask the lab | Not on the list |
| International Product Assurance Laboratories | Anderson, SC | Named on the official list | Public samples: ask the lab | Not on the list |
| PACE ANALYTICAL SERVICES LLC FLORIDA | Ormond Beach, FL | Named on the official list | Public samples: ask the lab | Not on the list |
| SGS NORTH AMERICA INC DAYTON | Dayton, NJ | Named on the official list | Public samples: ask the lab | Not on the list |
| TRIDENT LABS SERVICES INC | Ladson, SC | Named on the official list | Public samples: ask the lab | Not on the list |
How the South Carolina list marks public samples (whole list). Not stated per lab. SCDES's well-testing page tells well owners: "For Volatile Organic Chemicals, Herbicides, Pesticides, Other Synthetic Organic Parameters, please contact a Commercial Laboratory." It names no lab, and CELMAPP does not say which labs take samples from homeowners.
Before you send a sample, call the lab to confirm it is currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Status can change between list updates.
Why test for arsenic in South Carolina
Arsenic is invisible, tasteless and mostly natural, and it comes in two forms that respond very differently to treatment. Read our arsenic explainer.
South Carolina guidance that mentions arsenic:
- Clemson Extension says comprehensive testing should be done after a well is installed and whenever recent results are not available. That covers arsenic, chloride, copper, fluoride, hardness, iron, lead, manganese, nitrate, pH, radium, sodium, sulfate, total coliform bacteria, total dissolved solids (TDS) and uranium. It recommends annual testing for priority parameters, including bacteria, nitrates, TDS and pH, and a monthly visual check for changes in turbidity, color, odor or taste. [1]
USGS estimates that the most private-well users with arsenic above 10 µg/L, EPA's limit for public water, live in York County, Florence County and Berkeley County (about 6,446 people in York County, 2010 base year). USGS describes this kind of estimate as useful "for broad screening of the population at risk", so it says nothing certain about any one well. [2]
Show the numbers
| Item | Value | Note |
|---|---|---|
| York County | 6,446 people (2010 base year) | |
| Florence County | 2,317 people (2010 base year) | |
| Berkeley County | 2,150 people (2010 base year) | |
| Horry County | 2,106 people (2010 base year) | |
| Charleston County | 1,743 people (2010 base year) | |
| Lexington County | 1,411 people (2010 base year) |
USGS model estimate for broad screening, not a measurement of any well. Only a test tells you about your own well. Source: USGS, Estimated county level domestic well population with arsenic greater than 10 micrograms per liter (Ayotte, Medalie and Qi, 2017), accessed 2026-11-01.
About 1,182,721 people in South Carolina used private wells in 2015, by the USGS estimate of people on domestic self-supplied water. [3] Federal limits are written for public water systems, not private wells, so testing is up to the owner.
For tests that depend on your home (farms nearby, old plumbing, a new baby), use the which-tests checklist. When results arrive, check your numbers against EPA's limits. State guidance, county data and every lab: South Carolina.
Other tests in South Carolina
- Clemson Cooperative Extension, Home & Garden Information Center, Residential Drinking Water Wells: Water Quality, HGIC 1902 (published Oct 31, 2023)
- USGS, Estimated county level domestic well population with arsenic greater than 10 micrograms per liter (Ayotte, Medalie and Qi, 2017)
- USGS, Estimated use of water in the United States, county-level data for 2015 (Dieter et al., ver. 2.0, 2018)
- SCDES Commercial Environmental Laboratory Mapping (CELMAPP) - certified commercial laboratories, Safe Drinking Water (official list)
SCDES Commercial Environmental Laboratory Mapping (CELMAPP) - certified commercial laboratories, Safe Drinking Water.
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