32 named for manganese itself on the list.
Per the state list or a state web page. Call to confirm.
Located outside Oregon but on its list.
USGS estimate for Oregon.
How many labs test for manganese in Oregon
32 labs on Oregon's official drinking-water lab list are certified to test for manganese. All 32 are named for manganese on the list. 29 of them are marked as taking samples from the public. They are listed first. 21 are located outside Oregon.
The list is published by the Oregon Health Authority (OHA) - Oregon State Public Health Laboratory, Oregon Environmental Laboratory Accreditation Program (ORELAP). List version on file: search as fetched 2026-11-15 (live database, no list date). Fetched 2026-11-15 (UTC).
Oregon labs certified for manganese
Marked as taking public samples (29)
| Lab | Location | Manganese certification | Public samples | Cert. expiry |
|---|---|---|---|---|
| ACZ Laboratories, Inc. | Steamboat Springs, CO | Named on the official list | Public samples: yes (per state) | 2/9/2027 |
| Alexin Analytical Laboratories, Inc. | Tigard, OR | Named on the official list | Public samples: yes (per state) | 5/4/2027 |
| Alliance Technical Group, LLC - Seattle | Seattle, WA | Named on the official list | Public samples: yes (per state) | 5/9/2027 |
| Alliance Technical Group, LLC-Akron | Cuyahoga Falls, OH | Named on the official list | Public samples: yes (per state) | 2/26/2027 |
| ALS Environmental, Kelso | Kelso, WA | Named on the official list | Public samples: yes (per state) | 2/10/2027 |
| Analytical Laboratory Group | Eugene, OR | Named on the official list | Public samples: yes (per state) | 4/19/2027 |
| Anatek Labs, Inc. - Spokane | Spokane, WA | Named on the official list | Public samples: yes (per state) | 4/10/2027 |
| Anatek Labs, Inc.-ID | Moscow, ID | Named on the official list | Public samples: yes (per state) | 6/26/2027 |
| Babcock Laboratories, Inc. | Riverside, CA | Named on the official list | Public samples: yes (per state) | 12/18/2026 |
| BSK Associates | Fresno, CA | Named on the official list | Public samples: yes (per state) | 1/29/2027 |
| City of Bend Water Quality Laboratory | Bend, OR | Named on the official list | Public samples: yes (per state) | 8/22/2027 |
| Columbia Laboratories Inc. | Portland, OR | Named on the official list | Public samples: yes (per state) | 6/29/2027 |
| EMSL Analytical, Inc. | St. Louis, MO | Named on the official list | Public samples: yes (per state) | 2/26/2027 |
| Enthalpy Analytical, LLC - Orange | Orange, CA | Named on the official list | Public samples: yes (per state) | 1/29/2027 |
| Environmental Science Corporation (dba Pace Analytical National Center for Testing & Innovation) | Mt. Juliet, TN | Named on the official list | Public samples: yes (per state) | 1/15/2027 |
| Eurofins Lancaster Laboratories Environment Testing, LLC | Lancaster, PA | Named on the official list | Public samples: yes (per state) | 9/11/2027 |
| Eurofins Pomona | Pomona, CA | Named on the official list | Public samples: yes (per state) | 1/29/2027 |
| Eurofins South Bend | South Bend, IN | Named on the official list | Public samples: yes (per state) | 9/16/2027 |
| Grants Pass Water Laboratory, Inc./The Water Lab | Grants Pass, OR | Named on the official list | Public samples: yes (per state) | 12/17/2026 |
| Matrix Sciences dba KTL | Pasco, WA | Named on the official list | Public samples: yes (per state) | 2/14/2027 |
| Microbac Laboratories, Inc. - Arcata | Arcata, CA | Named on the official list | Public samples: yes (per state) | 9/2/2027 |
| Neilson Research Corporation | Medford, OR | Named on the official list | Public samples: yes (per state) | 12/23/2026 |
| Pace Analytical Services, LLC -- Bakersfield | Bakersfield, CA | Named on the official list | Public samples: yes (per state) | 4/22/2027 |
| RJ Lee Group, Inc./Columbia Basin Analytical Laboratories | Pasco, WA | Named on the official list | Public samples: yes (per state) | 2/23/2027 |
| Rose City Laboratories | Portland, OR | Named on the official list | Public samples: yes (per state) | 11/16/2026 |
| SGS Silver State Analytical Laboratories - Reno | Reno, NV | Named on the official list | Public samples: yes (per state) | 3/13/2027 |
| Umpqua Research Company | Myrtle Creek, OR | Named on the official list | Public samples: yes (per state) | 1/30/2027 |
| Waterlab Corp. | Salem, OR | Named on the official list | Public samples: yes (per state) | 4/10/2027 |
| Weck Laboratories, Inc. | City of Industry, CA | Named on the official list | Public samples: yes (per state) | 1/29/2027 |
Other labs on the list (3)
| Lab | Location | Manganese certification | Public samples | Cert. expiry |
|---|---|---|---|---|
| Continental Water Laboratory | Sacramento, CA | Named on the official list | Not marked as taking public samples | 1/29/2027 |
| Portland Water Bureau Laboratory | Portland, OR | Named on the official list | Not marked as taking public samples | 11/6/2027 |
| U.S. Region 9 Lab - Corvallis, OR | Corvallis, OR | Named on the official list | Not marked as taking public samples | 8/31/2027 |
How the Oregon list marks public samples (whole list). Yes for labs ORELAP marks as accepting public samples (OHA: "these laboratories can accept samples from anyone"); No for drinking-water labs without that mark (mostly utility and federal labs).
Before you send a sample, call the lab to confirm it is currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Status can change between list updates.
Why test for manganese in Oregon
Black stains start around EPA's 0.05 mg/L guideline, but the health numbers sit higher and vary by agency, especially for babies on formula. Read our manganese explainer.
About 631,538 people in Oregon used private wells in 2015, by the USGS estimate of people on domestic self-supplied water. [1] Federal limits are written for public water systems, not private wells, so testing is up to the owner.
For tests that depend on your home (farms nearby, old plumbing, a new baby), use the which-tests checklist. When results arrive, check your numbers against EPA's limits. State guidance, county data and every lab: Oregon.
Other tests in Oregon
ORELAP laboratory search (ODIE): accredited for the Drinking Water matrix.
Official source