Lake Charles, LA Water Quality Report
Is Lake Charles tap water safe? See PFAS and lead contamination levels for Lake Charles, Louisiana. Compare to EPA limits and get filter recommendations.
Quick Answers
Is Lake Charles tap water safe to drink? Lake Charles tap water meets most federal EPA limits, but PFAS compounds have been detected at an average of 22.31 ppt across 1 compound. A certified pitcher filter or reverse osmosis system is recommended for sensitive populations.
What contaminants are in Lake Charles water? Top PFAS compounds detected in Lake Charles water: lithium (35.7 ppt). See the full table for all monitored contaminants and comparison to EPA limits.
What filter should I use in Lake Charles? 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.
Lake Charles Water Quality Summary
EPA testing has detected PFAS "forever chemicals" in Lake Charles drinking water. Recent monitoring found a peak level of 35.7 ppt across 4 water systems, representing an average of 22.31 ppt across 1 detected compound.
Contamination Level: MODERATE – Moderate contamination – PFAS detected at meaningful levels; filtration recommended.
Top Detected Compounds
- lithium: 35.7 ppt (exceeds EPA 4 ppt limit for PFOA/PFOS)
Lead in Lake Charles Water
EPA Lead and Copper Rule testing has recorded 55 lead samples for Lake Charles water systems, with a 90th-percentile high of 0.011 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 Lake Charles
Lake Charles public water systems have 17 health-based EPA Safe Drinking Water Act violations on record, including Surface Water Treatment Rule, Chromium, Lead & Copper Rule, Haloacetic Acids (HAA5). 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 Lake Charles: approximately 75,770.
ZIP Codes Served
What Lake Charles 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