Grants Pass Water Laboratory, Inc./The Water Lab
Homeowner samples
- Arsenic
- Coliform Bacteria
- Iron and Manganese
- Lead
- Nitrate / Nitrite
Umpqua Research Company is a commercial laboratory in Myrtle Creek, OR (Douglas County). It is on the Oregon drinking water program's list of certified laboratories (certificate OR100031), and we last checked the list on September 30, 2026.
The lab takes samples from homeowners.
Before you go: Accredited by the Oregon Environmental Laboratory Accreditation Program (ORELAP ID OR100031) for drinking water and flagged by ORELAP as accepting samples from the public. Accredited for: Microbiology, Inorganic chemistry, Metals, Volatile organics, Pesticides and SOCs, Radiochemistry (arsenic, coliform, copper, ecoli, fluoride, iron, lead, manganese, nitrate, pesticides, sodium, uranium, voc checked). Call for bottles, drop-off hours and pricing; most of these labs sell the real estate transaction panel (arsenic, nitrate, total coliform) required by Oregon's Domestic Well Testing Act.
This profile is built from the official state list of certified drinking water laboratories, checked on September 30, 2026. Well Water Insider does not rate or endorse labs. Run this lab? Claim the profile to add prices, turnaround times, hours and a description.
Listed on the official state certified laboratory list.
How this lab takes samples, based on its listing. Call to confirm hours, bottles and prices.
Published lab fees in Oregon: $20 to $40 for a bacteria test and $20 to $40 for nitrate. Oregon Health Authority estimates; arsenic runs $25 to $45. Prices at this lab may differ.
Bacteria samples need a sterile bottle from the lab. Chemistry samples usually take a clean container the lab supplies.
Skip softeners and filters. Remove the aerator, run the water 3 to 5 minutes, then fill without touching the inside of the cap.
Bacteria samples are time-sensitive. Use a cooler with ice packs and hand it in or ship it the same day.
Compare results with EPA drinking water limits. If anything is over, our problem pages explain what it means and how to treat it.
From the state certification list and the lab's own listing. Ask which ones it runs for homeowners.
Natural in some bedrock, with no taste or smell. The EPA limit is 0.010 mg/L. Learn more
Total coliform and E. coli. The test the CDC recommends every year for every private well. Learn more
The cause of orange and black stains. EPA guidelines are 0.3 and 0.05 mg/L. Learn more
Usually from plumbing and older well parts. EPA says there is no safe level. Learn more
From fertilizer, manure and septic systems. The EPA limit is 10 mg/L as nitrogen. Learn more
Farm and lawn chemicals that can reach shallow wells.
Natural in granite and some other rock. The EPA limit is 0.030 mg/L. Learn more
Fuel and solvent chemicals from spills and leaking tanks. Learn more
626 NE Division St, Myrtle Creek, OR 97457
Lab address
Yes. It is on the Oregon list of laboratories certified for drinking water testing, last checked September 30, 2026.
Its listing covers arsenic, coliform bacteria, iron and manganese, lead, nitrate / nitrite, pesticides, uranium and volatile organic compounds. Call to confirm prices and which tests it runs for private well owners.
Yes, the listing says it takes homeowner samples. Get the right bottle from the lab first, especially for bacteria.
Call (541) 863-5201 and visit the lab's website. The address is 626 NE Division St, Myrtle Creek, OR 97457.
Homeowner samples
Homeowner samples
Homeowner samples