Old list: check before you rely on it
This list is from PA DEP's bulk drinking-water reports printed June 11, 2024 (chemistry and microbiology; the microbiology file is named 06-13-2024). PA DEP's own private-well water-testing page still links these two June 2024 reports (checked Nov 14, 2026); its live lab search did not respond to us on Oct 29 or Nov 14, 2026. Labs may have been added, dropped or changed since then.
At a glance
- 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 (Louisiana list)
Lab facts
- Listed by
- Pennsylvania (Pennsylvania DEP - Laboratory Accreditation Program)
- Address
- 5815 Middlebrook Pike, Knoxville, TN 37921 · Open in Google Maps
- Phone
- (865) 291-3000
- Public / homeowner samples
- Public samples: ask the labPA DEP accreditation report has no homeowner-sample flag
- Location note
- Lab is in TN, certified by Pennsylvania (often used as a mail-in lab).
- Left blank on the list
- The Pennsylvania list (version STALE - report dated 6/11/2024) gives no website for this lab.
Certification record
- Certificate ID
- PA DEP 68-00576
- Issued by
- Pennsylvania DEP - Laboratory Accreditation Program (certification program)
- List version
- PA DEP Accredited Labs Report - Drinking Water (chemistry), version STALE - report dated 6/11/2024
- We fetched it
- 29 Oct 2026 (file SHA-256 415f95aac8bd…) · open the state file
Tests on the state list
This list does not break certification down by analyte. Ask the lab which tests it is certified for; the groups as written on the list are below.
Groups as written on the state list (1)
- 2,3,7,8-Tetrachlorodibenzo- p-dioxin (2,3,7,8-TCDD)
- 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*').
STALE LIST: PA DEP bulk Accredited Labs Report(s) dated 6/11/2024. The live PA DEP lab search was unreachable on 2026-10-29 (HTTP 500 / TLS error). Confirm current accreditation with PA DEP or the lab.
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.
- Virginia · VA lab 460176 / EPA TN00009 · analytes not broken down · Public samples: ask the labVirginia DCLS - Drinking Water Certified Labs (analyte detail) (Current as of 8/1/2026)
- Tennessee · 02014 · Nitrate, Arsenic, Lead, VOCs, Other metals · Public samples: ask the labTDEC Division of Water Resources - Commercial Laboratories Certified for Drinking Water Analysis (10/2/2026 (page footers 10/06/2026))
- Georgia · GA Lab # 906 · analytes not broken down · Public samples: ask the labLaboratories Certified by Georgia for Chemical Monitoring (January 9, 2025)
- Michigan · 9933 · analytes not broken down · Public samples: ask the labEGLE - Certified Out of State Laboratories (9/8/2025 (out-of-state list))
- Florida · FL DOH E87177 · analytes not broken down · Public samples: ask the labFlorida 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 T104704380 · analytes not broken down · Public samples: ask the labTCEQ 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"))
- Louisiana · LA019 · analytes not broken down · Public samples: yes (per state)LDH - 2026 List of Laboratories Certified by Louisiana for Drinking Water Analyses - Chemistry (Current as of 2/12/2026)
- Colorado · CO Lab Cert ID TN00009 · analytes not broken down · Public samples: yes (per state)CDPHE Drinking Water Lab Certifications (Looker Studio report on cdphe.colorado.gov/dwlabs) (Live report, no edit date shown; data read by the report at 2026-11-02 20:39 UTC (Looker Studio dataTimestamp))
- Maryland · 277 · analytes not broken down · Public samples: ask the labMaryland's Certified Drinking Water Laboratories (MDE Laboratory Certification Program) (Latest Revisions: 10/1/2026)
- West Virginia · 9955 C · analytes not broken down · Public samples: ask the labWV OLS Environmental Drinking Water Laboratory Certification Program - Laboratory Certified Parameter List (printed Thursday, August 20, 2026)
- North Carolina · 21705 · analytes not broken down · Public samples: ask the labNC SLPH Environmental Sciences - Certified Drinking Water Laboratories (Commercial) (generated on request (no date printed), fetched 2026-11-07)
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 Pennsylvania 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).
PA DEP Accredited Labs Report - Drinking Water (chemistry). Fetched 2026-10-29 (UTC). File SHA-256 415f95aac8bd…
Open the official source list