RTI International

At a glance

What it is certified to test

3 of the 9 common well tests on the FL list (see which)

Price

not published on the state list: ask the lab for a quote

Turnaround

not stated on the state list or the lab’s website: ask when you order

Homeowner samples

yes (Colorado list)

Lab facts

Listed by

Florida (Florida Department of Health (DOH) - Environmental Laboratory Certification Program (NELAP))

Address

3040 E. Cornwallis Road, Durham, NC 27713 · Open in Google Maps

Phone

(919) 541-8762

Public / homeowner samples

Public samples: ask the lab

Not stated in the list.

Location note

Lab is in NC, certified by Florida (often used as a mail-in lab).

Left blank on the list

The Florida list (version DOH Version: 11/07/2026 08:30:01 (Qlik app refresh 11/9/2026 4:26:47 AM; live database)) gives no website for this lab.

Certification record

Certificate ID

FL DOH E971162

Issued by

Florida Department of Health (DOH) - Environmental Laboratory Certification Program (NELAP) (certification program)

List version

Florida DOH - Laboratories Certified Under NELAP (DEP Qlik app): Analyte Search + Organization Name and Location Search, Matrix = Drinking Water, Certification Status = Accredited, Active labs, version DOH Version: 11/07/2026 08:30:01 (Qlik app refresh 11/9/2026 4:26:47 AM; live database)

We fetched it

15 Nov 2026 (file SHA-256 7a6c0a398703…) · open the state file

Tests on the state list

• Named on the official list The state list names this analyte (or a column for it) for this lab.
• Group-level certification Certified for a parent group (e.g. 'Inorganics') that includes this analyte. Confirm the specific test with the lab.
• Partial group certification The list marks the group as 'Partial'. Confirm this analyte with the lab.
• Subcontracted The lab sends this analyte to another accredited lab (MDH 'X*').

Florida DOH lists 17 drinking-water analytes (across 1 method) this lab is NELAP-accredited for. DOH lab type: University. DEP's Laboratory page, which links this list, advises the public to "contact only commercial laboratories from the results, as utility, university, research, and state laboratories do not accept public samples".

Also certified by other states

Same business (same street address and ZIP) on another state's official list. Each state certifies separately, so each listing keeps its own source.

• Virginia · VA lab 460316 / EPA NC00116 · Arsenic, Lead, Manganese, Other metals · Public samples: ask the lab
  Virginia DCLS - Drinking Water Certified Labs (analyte detail) (Current as of 8/1/2026)
• Nevada · NV Lab ID NC00116 · Arsenic, Lead, Manganese, Other metals · Public samples: ask the lab
  NDEP Laboratory Approval Status - Certified Lab List (public database, Matrix: Drinking Water) (Live database, searched 2026-11-15 ("accurate as of the date and time of the search"))
• Colorado · CO Lab Cert ID NC00116 · Arsenic, Lead, Other metals · Public samples: yes (per state)
  CDPHE Drinking Water Lab Certifications (Looker Studio report on cdphe.colorado.gov/dwlabs) (Live report, no edit date shown; data read by the report at 2026-11-02 20:39 UTC (Looker Studio dataTimestamp))

Before you send a sample

Call the lab to confirm it's currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Bacteria samples have short holding times. Status can change between list updates. To check a status, contact the Florida certification program.

Is this your lab?

Labs can ask for corrections through the agency that publishes their state list. Homeowner service, prices and turnaround above come only from the lab’s own website. To ask us to correct or remove this listing, write to us (how we handle listings).