Certified well water labs in Oregon (2026)
About one in four Oregonians drinks from a private well — Deschutes County’s private-well page cites roughly 400,000 people on about 350,000 wells statewide. Those taps are not under Safe Drinking Water Act monitoring. Oregon Health Authority puts the annual baseline on you: coliform bacteria and nitrate every year, plus arsenic every 3 to 5 years. When you sell a home with a domestic well, the Domestic Well Testing Act (ORS 448.271) requires an accredited-lab panel for arsenic, nitrate, and total coliform — reported to the buyer and to OHA. You pick an ORELAP-accredited lab that accepts public samples, hit the 24-hour clock, and keep the report.
The short version
- Order bottles from an ORELAP-accredited lab that takes public samples. Use ORELAP’s Search Labs tool: State = Oregon, Matrix = Drinking Water, Filter = Accepts Public Samples. OHA’s July 2026 how-to PDF walks the clicks. Accreditation ≠ walk-in this week — confirm acceptance, hold times, and fees.
- Hit the bacteria clock the kit names — OHA says within 24 hours. Use the lab’s bottles and instructions. Wrong container, fill line, or missing date/time can invalidate the sample. Real-estate samples must follow OAR 333-061-0335 collection rules.
- Match the panel to Oregon rock, agriculture, and the purpose of the test. OHA: annual coliform + nitrate (~$20–$40 each on the state table); arsenic every 3–5 years (~$25–$45). Selling? Arsenic + nitrate + total coliform at an accredited lab, then the RET form to OHA within 90 days. In the Lower Umatilla Basin (Morrow/Umatilla), check the free LUBGWMA voucher before you pay.
How Oregon’s system actually works
OHA’s Domestic Well Safety — Testing Recommendations page is blunt: you are only required to test when selling a property with a well; for health, test on the cadence above. DEQ’s private-well resources say the same core truth — OHA and DEQ do not run a statewide free annual test program for every private well. You pay a nearby accredited lab (or use a geography-limited free path if you qualify).
The Oregon Environmental Laboratory Accreditation Program (ORELAP) accredits labs for drinking-water methods. For homeowners, the practical filter is the public search with Accepts Public Samples turned on. Questions for the program: ORELAP.Info@oha.oregon.gov. DEQ also lists OHA Drinking Water Program help at 971-673-0405.
If your domestic well sits in the Lower Umatilla Basin Groundwater Management Area (Morrow or Umatilla County), OHA’s LUBGWMA project offers a free well-water test voucher for qualifying drinking/cooking wells that are not commercial or part of a public system — start with the LUBGWMA Domestic Well Project page. That path is geography-limited; it is not a statewide free annual program.
Options we verified
Fees and rules live on OHA Domestic Well Safety pages, DEQ’s private-well hub, ORELAP’s search tool, Neilson’s published residential packages, Deschutes County’s lab phone list, and the mail-in product pages. What we could verify with a public URL tonight:
The table scrolls sideways on a phone.
| Option | What they offer | Listed cost | Catch |
|---|---|---|---|
| Neilson Research (NRC Labs) — Real Estate Package | Medford ORELAP-accredited lab. Live residential packages page lists a Real Estate Package covering arsenic, coliform, and nitrate — the ORS 448.271 sale set. Also lists broader Top 35 and plumbing-toxicity panels. | Real Estate Package $125 (3–5 business days). Top 35™ $325; Plumbing Toxicity™ $210 (Oct 2, 2026 page). | Confirm bottles, hold times, and private-well acceptance before you sample. 245 S Grape St, Medford · (541) 770-5678. |
| ORELAP Search Labs (public samples) | Official searchable list of ORELAP-accredited labs. Filter Oregon + Drinking Water + Accepts Public Samples. Download each lab’s accredited scope from the results. | Fees not on the search page (except what each lab publishes separately). OHA’s routine table: bacteria or nitrate roughly $20–$40; arsenic $25–$45. | Accreditation ≠ private-well bottles this week. Confirm acceptance, analyte scope, 24-hour delivery, and current fees. ORELAP.Info@oha.oregon.gov. |
| Deschutes County Private Well Safety Program | County EH technical help and (spring/summer, staff permitting) sample collection assistance. Points homeowners to local labs: Edge Analytical Bend, Umpqua Research Bend, Box R Prineville. | County does not publish a lab fee schedule — “laboratory fees are the responsibility of the homeowner.” | Edge Analytical Bend (541) 639-8425 · Umpqua Bend (541) 312-9454 · Box R Prineville (541) 447-4911. Call for bottles and today’s dollars. Interest form on the county page. |
| LUBGWMA free test voucher (Morrow / Umatilla) | OHA: if your domestic well is in the Lower Umatilla Basin Groundwater Management Area and used for drinking/cooking (not commercial / not a PWS), apply for a free well-water test voucher. High nitrate (≥10 mg/L) can trigger free bottled-water delivery signup on that page. | No charge if you qualify — use OHA’s online voucher application first. | Geography-limited. Call/text (541) 952-9254 or email Domestic.Wells@odhsoha.oregon.gov. Not a substitute for annual testing outside the boundary. |
| OHA routine cost ranges | State Domestic Well Safety table for typical private-well test costs and cadence (coliform/E. coli, nitrate, arsenic). | Coliform or nitrate $20–$40 each; arsenic $25–$45 (OHA table as of Oct 2, 2026). | Ranges, not a guarantee for your county. Your lab’s invoice wins. Pair with ORELAP search for a named lab. |
We listed published OHA ranges and Neilson’s live package dollars. Softener-shop “free in-office” TDS/hardness screens are screening-only and are not on this page. Labs without a public homeowner fee sheet stay in ORELAP search / Deschutes phone list — we are not inventing town fees. Umpqua’s public price book we pulled is labeled FEE SCHEDULE 2019; call Bend or Myrtle Creek for today.
Labs and phones called out by Deschutes County (selected)
Names and phones below are from Deschutes County’s Private Well Safety page plus Neilson’s public site. For live accreditation status and methods, use ORELAP’s lab search. Neither OHA nor this page endorses specific labs. Call for private-well acceptance, bottles, hold times, current fees, and whether your lender’s analyte list is covered.
The table scrolls sideways on a phone.
| Lab | Area | Phone (as published) | Notes |
|---|---|---|---|
| Neilson Research Corporation (NRC Labs) | Medford (Jackson / Josephine) | (541) 770-5678 | Published Real Estate Package $125 (As + coliform + nitrate) |
| Edge Analytical, Inc. | Bend | (541) 639-8425 | On Deschutes County list — call for fees / bottles |
| Umpqua Research Company — Bend | Bend | (541) 312-9454 | On Deschutes County list — call for current fees (public PDF dated 2019) |
| Box R Water Analysis Laboratory | Prineville | (541) 447-4911 | On Deschutes County list; site offers RET kits / collection — call for quote |
ORELAP search returns many more Oregon drinking-water labs that accept public samples (Portland metro and elsewhere). Use the search for your city — we are not reprinting every row without a fee or phone we can cite cleanly.
What OHA (and DEQ) actually warrant
Match the panel to the land and to why you are testing:
- Every year: total coliform / E. coli and nitrate. OHA’s table puts typical costs around $20–$40 per test. Public-supply MCL guidance for nitrate is 10 mg/L as nitrogen. Do not boil high-nitrate water — boiling concentrates it. LUBGWMA materials make the same boiling warning explicit.
- Arsenic (statewide rock): OHA recommends every 3 to 5 years (~$25–$45 on the state table). Oregon’s sale statute already folds arsenic into the RET panel — do not skip it at closing even if your last routine arsenic was recent enough for health but your results are outside the 1-year RET validity window.
- Nitrate near septic or agriculture: take the annual nitrate seriously — especially in the Lower Umatilla Basin and other agricultural groundwater areas. If nitrate is ≥10 mg/L, follow OHA’s LUBGWMA / Domestic Well Safety guidance (including bottled-water paths where offered).
- After a flood, well work, or a change in taste / color / odor: bacteria first, on the hold-time clock. See our after-a-flood guide.
- PFAS concern: use an ORELAP-accredited lab for the method your situation needs. Details: PFAS Method 533 / 537.1.
When the Certificate of Analysis arrives, more: how to read a well water report.
Hardware-store strips are screening-only. Softener sales “tests” are screening-only. Neither is what a lender means by “tested.”
Hold times, collection, and shipping
OHA: get the sample to the lab as soon as possible, within 24 hours of collection. Use the lab’s bottles and forms. For a real-estate transaction, collection must follow OAR 333-061-0335 and analysis must be by an accredited lab under OAR 333-061-0330. Results are often ready in 1–3 business days; arsenic may take longer (OHA notes up to about 10 business days depending on the analysis). More after weather events: what to test after a flood.
Mail-in kits that work from Oregon
Independent mail-in labs ship to and from Oregon as ordinary domestic US kits. They email a PDF. They are not selling you a softener in the same breath. For a lender or a Domestic Well Testing Act closing, confirm the analyzing lab is ORELAP-accredited for arsenic, nitrate, and total coliform — mail-in self-collect often does not satisfy that path. Listed prices we checked for this ship (same national SKUs as other state pages):
- Tap Score / SimpleLab Essential Well: $209 listed (54 analytes; standard shipping and prepaid return on the product page).
- National Testing Laboratories WaterCheck Basic: $220 listed plus free delivery on watercheck.com. Next-day return shipping is not included. Budget for overnight return on the bacteria bottle.
Those are listed prices, not coupons. Kits change. Read the current product page before you buy. If a local ORELAP lab’s annual coliform + nitrate fees cover your yearly question and you can hit the 24-hour window — check that path before you spend $200 on a national kit for the same core question. For an Oregon sale, prefer a named ORELAP lab and the RET reporting path.
Side by side for an Oregon well
The table scrolls sideways on a phone.
| ORELAP lab / county EH assist | Commercial package (e.g. Neilson RET) | Mail-in (Tap Score / NTL) | |
|---|---|---|---|
| Best for | Annual OHA baseline; Deschutes-style collection help when available; LUBGWMA free voucher if you qualify | Published sale panel dollars (As + coliform + nitrate); broader metals packages; ORELAP search statewide | Broader baseline panel and a PDF when local hours do not fit — informational unless the underwriter accepts it |
| PDF? | Lab / county report — ask format | Lab report — ask format and turnaround | Yes. Email is the product |
| Sales visit? | No | No (if you stay on independent labs) | No |
| Lender / sale? | Often yes if the lab is ORELAP-accredited for the RET analytes — confirm first | Often yes if lab, analytes, and accreditation match ORS 448.271 — confirm first | Often not for named-lab / CoC / RET letters. See home purchase / lender CoC |
Real estate and lenders
Oregon is clearer than many states: the Domestic Well Testing Act (ORS 448.271) requires the seller (or representative) to test a domestic well for arsenic, nitrate, and total coliform at an accredited laboratory when selling or exchanging the property. Results are valid for one year. Within 90 days, send results to the potential buyer and send the RET form plus those three results to OHA’s Domestic Well Safety Program (mail, fax 971-673-0457, or Domestic.Wells@odhsoha.oregon.gov). Exemptions exist for spring wells, irrigation-only wells, and wells on undeveloped land — read OHA’s Well Testing & Regulations page before you assume you are exempt.
Lenders and title companies may still name a lab, form, or “mortgage test” panel beyond the state minimum — use what they named. More: home purchase / lender chain of custody.
Remind me to test my well every year
CDC and EPA say to test a private well at least once a year. We’ll send one email a year, about when your test is due, with your state’s lab options.
Thanks, you’re on the list. We’ll email you once a year when it’s time to test your well. Nothing else.
What to do in Oregon
- Start with OHA annual advice — coliform + nitrate every year; arsenic every 3–5 years — then pick a lab from ORELAP search (public samples).
- Order bottles from Neilson, Edge, Umpqua, Box R, or another ORELAP lab that confirms private-well acceptance. ORELAP questions: ORELAP.Info@oha.oregon.gov · DEQ also cites OHA help at (971) 673-0405.
- Annual panel: coliform + nitrate on the 24-hour clock. Add arsenic on the 3–5 year cadence (or sooner if rock, prior detects, or a sale is coming).
- Buying or selling: arsenic + nitrate + total coliform at an accredited lab; file the RET form with OHA within 90 days; keep the buyer copy. Results last one year for RET reuse.
- Morrow / Umatilla (LUBGWMA): check OHA’s free voucher before you pay for a routine nitrate panel if you may be inside the boundary.
- If you want a broader PDF this month and local lab hours do not fit, use Tap Score / SimpleLab or National Testing Laboratories (Watercheck) — still confirm lender / RET fit first.
- Questions on well-water health: start with OHA Domestic Well Safety pages, then your local environmental health department (Deschutes is one worked example with a published interest form).
Not this if…
- A lender or title company named a lab and analytes. Use that path. Do not assume every ORELAP name takes private bottles this week.
- Someone offered a free in-home or in-office “test” that ends in a softener pitch. That is not on this page. See the Home Depot free-kit comparison.
- You only wanted a strip from the hardware aisle. Fine as screening-only. It is not a certified analysis.
- You assumed Oregon has no sale-test law. ORS 448.271 requires arsenic, nitrate, and total coliform at an accredited lab for domestic-well sales (with listed exemptions).
- You assumed the LUBGWMA free path covers every private well in the state. It is geography-limited to the Lower Umatilla Basin — use OHA’s voucher page to check.
- You invented a county lab fee because a neighbor once paid one. We only listed OHA’s $20–$45 ranges and Neilson’s published package dollars; Deschutes phones without fee sheets stay as call-first.
- You treated Umpqua’s 2019 fee PDF as today’s invoice. Call Bend or Myrtle Creek for current private-well pricing.
- You boiled high-nitrate or high-arsenic water as a fix. Boiling does not remove arsenic or nitrate (and concentrates nitrate). Find another drinking source or appropriate treatment — OHA Domestic Well Safety has next-step guidance.
Related: Washington · Arizona · California · Colorado · PFAS 533 / 537.1 · how to read a report · after a flood · lender / CoC · cost table · Home Depot free kit vs a certified lab · How it works · back to the directory.