RTI International

At a glance

What it is certified to test

2 of the 9 common well tests on the CO 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

Colorado (Colorado Department of Public Health and Environment (CDPHE) - Laboratory Services Division, Drinking water lab certification)

Address

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

Public / homeowner samples

Public samples: yes (per state)

CDPHE's 'Drinking Water Lab Certifications' report (cdphe.colorado.gov/dwlabs), column "Accepts Outside Samples": Yes. CDPHE does not say which outside samples a lab takes or on what terms; its 'Water testing services' page says "Before sending samples to another lab, please ensure you have checked its sample submission criteria". Call first.

Location note

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

Left blank on the list

The Colorado list (version Live report, no edit date shown; data read by the report at 2026-11-02 20:39 UTC (Looker Studio dataTimestamp)) gives no phone, website for this lab.

Certification record

Certificate ID

CO Lab Cert ID NC00116

Issued by

Colorado Department of Public Health and Environment (CDPHE) - Laboratory Services Division, Drinking water lab certification (certification program)

List version

CDPHE Drinking Water Lab Certifications (Looker Studio report on cdphe.colorado.gov/dwlabs), version Live report, no edit date shown; data read by the report at 2026-11-02 20:39 UTC (Looker Studio dataTimestamp)

We fetched it

2 Nov 2026 (file SHA-256 f1d129b567c5…) · 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*').

CDPHE lists 11 drinking-water analytes this lab is certified for, with lab status Active (test groups: Trace Metals). CDPHE's report prints only "Durham, NC 27713" for this lab; the street address is from Virginia's official list (its row carries EPA lab code NC00116, as CDPHE's Lab Cert ID does). CDPHE: 'Accept Samples on Saturday': No. CDPHE's report shows no certificate expiry date or phone.

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)
• Florida · FL DOH E971162 · Arsenic, Lead, Manganese, Other metals · Public samples: ask the lab
  Florida DOH - Laboratories Certified Under NELAP (DEP Qlik app): Analyte Search + Organization Name and Location Search, Matrix = Drinking Water, Certification Status = Accredited, Active labs (DOH Version: 11/07/2026 08:30:01 (Qlik app refresh 11/9/2026 4:26:47 AM; live database))
• 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"))

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 Colorado 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).