National Testing Laboratories

At a glance

What it is certified to test

6 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

556 South Mansfield Street, Ypsilanti, MI 48197 · 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 MI, 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 MI00044

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 83 drinking-water analytes this lab is certified for, with lab status Active (test groups: Adipates/Phthalate, Anion, Carbamates, Disinfection Byproduct (DBP), Haloacetic Acids, Herbicides, Microbiology, Misc, PAH, PCB, Pesticides, Trace Metals, Trihalomethanes, VOCs). CDPHE SDWIS Lab ID MI001. CDPHE's report prints only "Ypsilanti, MI 48197" for this lab; the street address is from Virginia's official list (its row carries EPA lab code MI00044, 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.

• Vermont · VT 40014 · Coliform / E. coli, Nitrate, Arsenic, Lead, VOCs, Other metals · Public samples: yes (per state)
  Vermont Department of Health - Laboratories Certified for Drinking Water Analysis (September 28, 2026)
• Virginia · VA lab 460309 / EPA MI00044 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, Manganese, VOCs, Other metals · Public samples: ask the lab
  Virginia DCLS - Drinking Water Certified Labs (analyte detail) (Current as of 8/1/2026)
• Pennsylvania · PA DEP 68-00362 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, Manganese, VOCs, Other metals · Public samples: ask the lab
  PA DEP Accredited Labs Report - Drinking Water (chemistry + microbiology) (STALE - report dated 6/11/2024)
• Massachusetts · M-MI044 · Coliform / E. coli, Lead, PFAS, Uranium · Public samples: yes (per state)
  MassDEP Certified Laboratories Offering Analytical Services for Private Well Owners and Residential Customers (Created and published on 12/18/2025)
• California · CA ELAP 2568 · Nitrate, Arsenic, Lead, Manganese, VOCs, Other metals · Public samples: yes (per state)
  California ELAP - Accredited Laboratories (map layer) + per-lab Fields of Accreditation (Map layer fetched 2026-11-15; scope PDF as of 7/1/2026)
• Missouri · MO cert 500 (chemical) · Nitrate, Arsenic, Lead, Uranium, VOCs, Other metals · Public samples: ask the lab
  Missouri DNR - Certified Chemical Laboratories (spreadsheet of all laboratories) (Live export fetched 2026-11-15 (no list date printed in the file))
• Tennessee · 02960 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, VOCs, Other metals · Public samples: ask the lab
  TDEC Division of Water Resources - Commercial Laboratories Certified for Drinking Water Analysis + TDEC Division of Water Resources - Microbiological Laboratories Certified for Drinking Water Analyses (10/2/2026 (page footers 10/06/2026); As of October 2, 2026 (PDF title; page footers 10/06/2026))
• Georgia · GA Lab # C036 · Lead, Other metals · Public samples: ask the lab
  Laboratories Certified by Georgia for Chemical Monitoring + Laboratories Certified by Georgia for Lead and Copper Monitoring (January 9, 2025)
• Alabama · no ID on list · analytes not broken down · Public samples: ask the lab
  ADEM - Out of State Certified Laboratories (Revised: October 03, 2025)
• Michigan · 0055 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, Manganese, VOCs, Other metals · Public samples: ask the lab
  EGLE - State of Michigan Certified Laboratories: Chemistry + EGLE - State of Michigan Certified Laboratories: Microbiological + EGLE - State of Michigan Certified Laboratories: Lead and Copper + EGLE - Certified Radiological Laboratories (SOM Certified Labs - Chemistry 3/11/2026 (chemistry, microbiological, lead and copper lists); 9/8/2025 (radiological list))
• Illinois · IEPA 200084; IDPH Lab # 170055 · Coliform / E. coli, Nitrate, Arsenic, Lead, Manganese, Other metals · Public samples: ask the lab
  IEPA Accredited Laboratories (Primary Labs / Secondary Labs) - Laboratories Accredited for Chemical Analysis + Illinois Department of Public Health - Certified Water Microbiology Laboratories + TNI LAMS fields of accreditation (Drinking Water, accrediting body IL ELAP) (12/09/2025 (date in the file name; the PDF prints no date); Revision Date Thursday, December 4, 2025; TNI LAMS as fetched 2026-11-15)
• Florida · FL DOH E87753 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, Manganese, VOCs, 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))
• Texas · TX Lab ID T104704228 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, Manganese, VOCs, Other metals · Public samples: ask the lab
  TCEQ Laboratory Approval Status - List of Accredited Laboratories (public database, Matrix: Drinking Water) (Live database, searched 2026-11-15 ("accurate as of the date and time of the search"))
• Louisiana · LA020 · Nitrate, Arsenic, Lead, Uranium, Manganese, VOCs, Other metals · Public samples: yes (per state)
  LDH - 2026 List of Laboratories Certified by Louisiana for Drinking Water Analyses - Chemistry (Current as of 2/12/2026)
• Nevada · NV Lab ID MI00044 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, Manganese, VOCs, 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"))
• Kansas · KS Lab ID E-10351 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, Manganese, VOCs, Other metals · Public samples: ask the lab
  KDHE Approved Laboratory Search (AB Manager public database, Matrix: Drinking Water) (Live database, searched 2026-11-15 ("believed to be accurate at the time of the search"))
• Maryland · 205 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, VOCs, Other metals · Public samples: ask the lab
  Maryland's Certified Drinking Water Laboratories (MDE Laboratory Certification Program) (Latest Revisions: 10/1/2026)
• West Virginia · 9903 C · Nitrate, Arsenic, Lead, VOCs, Other metals · Public samples: ask the lab
  WV OLS Environmental Drinking Water Laboratory Certification Program - Laboratory Certified Parameter List (printed Thursday, August 20, 2026)
• North Carolina · 26700 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, Manganese, VOCs, Other metals · Public samples: ask the lab
  NC SLPH Environmental Sciences - Certified Drinking Water Laboratories (Commercial) (generated on request (no date printed), fetched 2026-11-07)
• Arizona · AZ0651 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, Manganese, VOCs, Other metals · Public samples: ask the lab
  ADHS Safe Drinking Water Commercial Lab List (List of Arizona Certified Commercial Drinking Water Laboratories) (current as of Saturday, November 7, 2026)
• Puerto Rico · no ID on list · analytes not broken down · Public samples: ask the lab
  Departamento de Salud de Puerto Rico, Sección de Agua Potable - Laboratorios y Parámetros Certificados (Revisado agosto 2025)
• Indiana · C-MI-06 / M-MI-03 · Nitrate, Arsenic, Lead, Uranium, VOCs, Other metals · Public samples: ask the lab
  IDOH - Find a Certified Out-of-State Drinking Water Laboratory (program page table) (page as fetched 2026-11-07 (no date printed))
• Rhode Island · LAO00314 · Coliform / E. coli · Public samples: ask the lab
  RIDOH - Out of State Analytical Laboratories (March 18, 2026)
• New Mexico · MI00044 · Coliform / E. coli, Lead, VOCs, Other metals · Public samples: ask the lab
  Laboratories Certified by NMED-DWB to Analyze Drinking Water Samples for Water Systems in New Mexico (Last Updated: 10/26/2026)
• Idaho · MI00044 · Nitrate, Arsenic, Lead, Uranium, VOCs, Other metals · Public samples: ask the lab
  Idaho DHW - Drinking Water Lab Certification (WebLink folder 2940): State of Idaho Drinking Water Certificates (National Testing Laboratories Ypsilanti, MI Inorganics Certificate: 1/1/2026 - 12/31/2026; National Testing Laboratories Ypsilanti, MI Organics Certificate: 1/1/2026 - 12/31/2026)

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).