ONTERRIS LABORATORIES, LLC- Wilmington (formerly ENTHALPY ANALYTICAL, LLC- Wilmington)

At a glance

What it is certified to test

1 of the 9 common well tests on the MD 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 (Washington list)

Lab facts

Listed by

Maryland (Maryland Department of the Environment (MDE) - Water Supply Program, Laboratory Certification Program)

Address

2714 Exchange Drive, Wilmington, NC 28405 · Open in Google Maps

Phone

(910) 212-5858

Public / homeowner samples

Public samples: ask the lab

Not stated per lab. MDE's Be Well Wise page for private well owners says: "Have your water tested periodically by a state-certified laboratory that conducts a drinking water test." It names no lab, and MDE's list does not say which labs take samples from homeowners.

Location note

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

Left blank on the list

The Maryland list (version Latest Revisions: 10/1/2026; PFAS list Last Rev 101/2026) gives no website for this lab.

Certification record

Certificate ID

374

Issued by

Maryland Department of the Environment (MDE) - Water Supply Program, Laboratory Certification Program (certification program)

List version

Maryland's Certified Drinking Water Laboratories (MDE Laboratory Certification Program), version Latest Revisions: 10/1/2026; PFAS list Last Rev 101/2026

We fetched it

7 Nov 2026 (file SHA-256 9d19de9053bf…) · 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*').

MDE prints the approved tests as "PFAS" (codes keyed to MDE's List of Approved Contaminants, Revised 10/10/2024). MDE prints no expiry date. MDE lists this lab under "Out of State Labs". MDE's list prints (937) 260-6902 (an Ohio area code) for this Wilmington, NC lab; the number shown is the one MDE's PFAS list prints for it. MDE prints ZIP 28425; the lists of WV, OH, VA and WA print 2714 Exchange Drive, Wilmington, NC 28405 for this lab.

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.

• Ohio · no ID on list · PFAS · Public samples: ask the lab
  Ohio EPA - Laboratories Certified/Accepted to Perform Analyses on Public Drinking Water (November 2026)
• Virginia · VA lab 460295 / EPA NC01463 · PFAS · Public samples: ask the lab
  Virginia DCLS - Drinking Water Certified Labs (analyte detail) (Current as of 8/1/2026)
• Washington · EPA NC01463 / WA DOH #296 · PFAS · Public samples: yes (per state)
  WA Ecology - Environmental Laboratories Accredited for Drinking Water Analyses (with scopes) (Information current as of 11/13/2026)
• Pennsylvania · PA DEP 68-05611 · PFAS · Public samples: ask the lab
  PA DEP Accredited Labs Report - Drinking Water (chemistry) (STALE - report dated 6/11/2024)
• New York · NY ELAP 12087 · PFAS · Public samples: ask the lab
  NY DOH - New York State accredited labs for PFOA/PFOS (EPA 533 / 537.1 v2), private-well rebate program (page fetched 2026-10-29)
• Massachusetts · M-NC1463 · analytes not broken down · Not marked as taking public samples
  MassDEP Certified Laboratories Offering Analytical Services for Private Well Owners and Residential Customers (Created and published on 12/18/2025)
• Alabama · no ID on list · PFAS · Public samples: ask the lab
  ADEM - Out of State Certified Laboratories + ADEM - Certified PFAS Labs (EPA Method 537.1) (Out of State Certified Laboratories: Revised: October 03, 2025; Certified PFAS Labs (EPA Method 537.1): Updated: October 03, 2025)
• Florida · FL DOH E871147 · PFAS · 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))
• West Virginia · 9981 C · PFAS · Public samples: ask the lab
  WV OLS Environmental Drinking Water Laboratory Certification Program - Laboratory Certified Parameter List (printed Thursday, August 20, 2026)
• North Carolina · 37920 · PFAS · Public samples: ask the lab
  NC SLPH Environmental Sciences - Certified Drinking Water Laboratories (Commercial) (generated on request (no date printed), fetched 2026-11-07)

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 Maryland 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).