On paper this system is compliant, but the EPA record shows 1 violation — mostly missed testing or reporting. What isn't measured can't be caught.
The Surface Water Treatment Rules require utilities using surface water (or groundwater under its influence) to filter and disinfect against microbes like Giardia, Legionella and viruses.
Read the rule → EPA · Surface Water Treatment RulesA violation on the federal record outside the standard categories.
Surface Water Treatment: The Surface Water Treatment Rules require utilities using surface water (or groundwater under its influence) to filter and disinfect against microbes like Giardia, Legionella and viruses.
Read the rule → EPA · Surface Water Treatment RulesSource: U.S. EPA Safe Drinking Water Information System (SDWIS), system IL0195400. “Compliant” means clearing federal limits — many unchanged for ~20 years. Health guidelines from independent scientists are often stricter. Results vary by home, plumbing and date.
NSF-58 certified under-sink RO — the only tech that broadly removes dissolved contaminants at the tap.
NSF-42 whole-house carbon cuts chlorine, chloramine and the pool-water taste.
Certified grab-and-go protection while you decide on the whole-home fix.