Microbac Laboratories, Inc. – Marietta Division

At a glance

What it is certified to test

4 of the 9 common well tests on the OH 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 (Vermont list)

Lab facts

Listed by

Ohio (Ohio EPA - Division of Drinking and Ground Waters)

Address

158 Starlight Drive, Marietta, OH 45750 · Open in Google Maps

Phone

(740) 373-4071

Certificate

The Ohio EPA - Laboratories Certified/Accepted to Perform Analyses on Public Drinking Water (version November 2026) prints no certificate ID or expiry date for this lab.

Public / homeowner samples

Public samples: ask the lab

Ohio EPA list covers public drinking water certification; homeowner acceptance not stated

Left blank on the list

The Ohio list (version November 2026) gives no website for this lab.

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*').

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 87551 · PFAS · Public samples: yes (per state)
  Vermont Department of Health - Laboratories Certified for Drinking Water Analysis (September 28, 2026)
• Virginia · VA lab 460187 / EPA OH00218 · PFAS · Public samples: ask the lab
  Virginia DCLS - Drinking Water Certified Labs (analyte detail) (Current as of 8/1/2026)
• Pennsylvania · PA DEP 68-01670 · Nitrate, Arsenic, Lead, PFAS, Manganese, Other metals · Public samples: ask the lab
  PA DEP Accredited Labs Report - Drinking Water (chemistry) (STALE - report dated 6/11/2024)
• New York · NY ELAP 10861 · 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)
• California · CA ELAP 3129 · PFAS · 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 1/14/2026)
• Tennessee · 04922 · Nitrate, Arsenic, Lead, Other metals · Public samples: ask the lab
  TDEC Division of Water Resources - Commercial Laboratories Certified for Drinking Water Analysis (10/2/2026 (page footers 10/06/2026))
• Michigan · 9145 · PFAS · Public samples: ask the lab
  EGLE - Certified Out of State Laboratories + EGLE - Out-of-State Certified PFAS Laboratories (9/8/2025 (out-of-state, out-of-state PFAS lists))
• Illinois · IEPA 200019 · Nitrate, Arsenic, Lead, PFAS, Manganese, Other metals · Public samples: ask the lab
  IEPA Accredited Laboratories (Primary Labs / Secondary Labs) - Laboratories Accredited for Chemical Analysis + TNI LAMS fields of accreditation (Drinking Water, accrediting body IL ELAP) (12/09/2025 (date in the file name; the PDF prints no date); TNI LAMS as fetched 2026-11-15)
• Iowa · IA Lab # 426 · PFAS · Public samples: ask the lab
  Iowa DNR LabCert - List of Certified Labs (Drinking Water program) + Find a Lab analyte search + Lab Details (Date Generated: 11/14/2026 (LabCert, live database))
• Florida · FL DOH E87551 · Nitrate, Arsenic, Lead, PFAS, 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))
• Texas · TX Lab ID T104704254 · Lead, 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"))
• Oklahoma · OK DEQ State ID 9611, certificate 2026-126 · Nitrate, Arsenic, Lead, PFAS, Other metals · Public samples: yes (per state)
  ODEQ Lab Facility Search - laboratories accredited by the DEQ Laboratory Accreditation Program (Matrix: Drinking Water) (Live database, searched 2026-11-02)
• West Virginia · 9973 C · Nitrate, Arsenic, Lead, PFAS, Other metals · Public samples: ask the lab
  WV OLS Environmental Drinking Water Laboratory Certification Program - Laboratory Certified Parameter List (printed Thursday, August 20, 2026)
• Arizona · AZ0723 · PFAS · 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)
• Oregon · 4211 · PFAS · Public samples: yes (per state)
  ORELAP laboratory search (ODIE): accredited for the Drinking Water matrix (search as fetched 2026-11-15 (live database, no list date))
• Indiana · C-OH-17 · Nitrate, Arsenic, Lead, PFAS, 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 · LAO00310 · PFAS · Public samples: ask the lab
  RIDOH - Out of State Analytical Laboratories (March 18, 2026)
• Kentucky · KY Lab ID 98026 · PFAS · Public samples: ask the lab
  2026 KY Certified Drinking Water PFAS Laboratory List (Revised 1/23/2026)
• New Mexico · OH00218 · Lead, PFAS, 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)

Nearest labs that take homeowner samples

No other lab that takes homeowner samples is within 25 miles of this lab; the nearest is 27 miles away. Distances are straight-line from the address on the state list (approx. = ZIP-code centre). “Takes homeowner samples” comes from a state list column or the lab’s own website, as named.

Price and turnaround as printed on each lab’s own website and checked by a second reader; – = not published or not read yet.

Around this lab: Washington County, OH

• Private wells: about 598 people, 1% of Washington County’s 61,112 residents (USGS, 2015); rank 84 of 88 counties in Ohio by people on wells.

• EPA radon zone (indoor air): Zone 2: moderate potential (average indoor radon may be between 2 and 4 pCi/L). EPA says the zone map should not decide whether one home needs testing.
• Arsenic above 10 µg/L (USGS model): about 10 private-well users (95% range 7 to 13; 2010 base), rank 84 of 88 in the state. A screening estimate, not a measurement of any well.
• Older homes (Census ACS 2020–2024): 63% of 27,949 housing units were built before 1980, about the same as the state share of 63%. Homes built before 1986 are more likely to have lead solder or fittings, so test tap water for lead there.
• PFAS in public water nearby (public supply, not your well): 7 public systems serving this county reported EPA UCMR 5 results; 3 had a PFOA or PFOS sample at or above 4.0 ng/L.

County figures describe where the lab is, not the lab. Sources: USGS 2015 water use and 2017 arsenic estimates, EPA radon zones, Census ACS table B25034 (2020–2024), EPA UCMR 5 (2023–2026); details and links on the sources page.

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 Ohio 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).