Knoxville, TN Water Quality Report
Is Knoxville tap water safe? See PFAS and lead contamination levels for Knoxville, Tennessee. Compare to EPA limits and get filter recommendations.
Quick Answers
Is Knoxville tap water safe to drink? Knoxville tap water meets most federal EPA limits, but PFAS compounds have been detected at an average of 0 ppt across 2 compounds. A certified pitcher filter or reverse osmosis system is recommended for sensitive populations.
What contaminants are in Knoxville water? Top PFAS compounds detected in Knoxville water: PFBA (0.01 ppt), PFBS (0 ppt). See the full table for all monitored contaminants and comparison to EPA limits.
What filter should I use in Knoxville? Reverse osmosis removes 90%+ of PFAS, lead, and arsenic. NSF-53 certified pitcher and faucet filters (ZeroWater, Clearly Filtered, LifeStraw) work for smaller households. Skip standard Brita filters for PFAS removal.
Knoxville Water Quality Summary
EPA testing has detected PFAS "forever chemicals" in Knoxville drinking water. Recent monitoring found a peak level of 0.01 ppt across 2 water systems, representing an average of 0 ppt across 2 detected compounds.
Contamination Level: LOW – Low contamination – PFAS detected but at lower levels; monitoring continues.
Top Detected Compounds
- PFBA: 0.01 ppt
- PFBS: 0 ppt
Lead in Knoxville Water
EPA Lead and Copper Rule testing has recorded 13 lead samples for Knoxville water systems, with a 90th-percentile high of 0.00457 mg/L (within the EPA 0.015 mg/L action level). There is no safe level of lead for children; if your home was built before 1986, a certified NSF/ANSI 53 lead-removal filter is recommended.
EPA Violations in Knoxville
Knoxville public water systems have 1 health-based EPA Safe Drinking Water Act violation on record, including Total Trihalomethanes (TTHMs). Health-based violations mean a contaminant exceeded its federal limit or required treatment was not applied.
About the Data
These figures come from the EPA's Unregulated Contaminant Monitoring Rule 5 (UCMR5) testing program, 2023-2025. UCMR5 is the most comprehensive national drinking water survey in US history, covering 66,000+ public water systems. Population of Knoxville: approximately 190,740.
ZIP Codes Served
Compare Knoxville to Other Cities
Side-by-side PFAS contamination comparisons with same-state, regional, and national peers.
What Knoxville Residents Should Do
- Enter your exact ZIP code at knowyourexposure.com for address-level data
- Install an NSF/ANSI 58 reverse osmosis filter (removes 94-99% of PFAS)
- If you're in a high-exposure group (pregnant, young children), consider a PFAS home test kit
- Review your utility's Consumer Confidence Report (CCR) annually