Tap water isn’t just “water”—it’s a cocktail of everything it passed through on the way to your faucet. Homeowners should be aware of contaminants like chlorine (which dries skin and can worsen asthma), lead (a neurotoxin that especially affects children), hard water minerals (which shorten appliance life and leave residue), and sediment or rust from aging pipes. Even if your water looks clear, it could still carry unseen risks—like PFAS (forever chemicals) or traces of industrial runoff. Clean-looking water doesn’t always mean clean water.
Because your tap water isn’t just “from the city”—it’s shaped by miles of pipes, decades of infrastructure decisions, and whatever’s going on underground near your neighborhood. Sure, you might already know about chlorine, lead, and hard water. But your zip code determines your exposure. Older neighborhoods tend to have outdated plumbing systems. Live near farmland? You might have trace pesticides in your water. Chemical layering is a thing. Chlorine can react with organic matter in pipes to form new compounds—some of which are still being studied. Small exposures stack up. You’re not just drinking the water—you’re absorbing it through skin in the shower and breathing in vapors when it’s hot. [Read more…]