Madison Suburban U D
- Coliform Bacteria
Tennessee Department of Health Laboratory Services (Nashville) is a state laboratory in Nashville, TN (Davidson County). It is on the Tennessee drinking water program's list of certified laboratories (certificate TDH-NASHVILLE), and we last checked the list on September 29, 2026.
The lab takes samples from homeowners.
Before you go: State public health laboratory. The Environmental Microbiology and Chemistry sections accept private well and spring samples for bacteria, nitrate and metals; sample bottles and forms come through the county health department or the laboratory (615-262-6337, TDOH-ENVLogin.Health@tn.gov). Screening covers bacteria, heavy metals, nitrate and other contaminants.
This profile is built from the official state list of certified drinking water laboratories, checked on September 29, 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 Tennessee: $40 for a bacteria test. Tennessee Tech Water Center: $40 bacteria, $125 basic package with bacteria, minerals and nitrate. 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
A broad package that usually covers bacteria, nitrate, metals and minerals. Learn more
Calcium and magnesium. You need this number to size a water softener. 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
630 Hart Lane, Nashville, TN 37216
Lab address
Yes. It is on the Tennessee list of laboratories certified for drinking water testing, last checked September 29, 2026.
Its listing covers arsenic, coliform bacteria, full homeowner panel, hardness, iron and manganese, lead and nitrate / nitrite. 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 (615) 262-6337. The address is 630 Hart Lane, Nashville, TN 37216.
Homeowner samples ยท Mail-in kits