Why You Should Filter Your Water in New York City: Health, Pipes, and Hidden Risks

New York City’s tap water is often praised as some of the cleanest in the United States — and that’s true at the source. But what happens between the reservoir and your faucet can tell a very different story. As a plumbing and water quality expert, we see firsthand how aging pipes and outdated infrastructure can impact your home’s water safety.

The Reality Behind NYC Tap Water

According to the NYC Department of Environmental Protection (DEP), city water meets all federal safety standards before it leaves the treatment plants. However, the problem often starts inside the city’s older plumbing systems.

• Many New York buildings still rely on lead or galvanized steel pipes that are 50–100 years old.

• Studies by Earthjustice show that roughly one in five New Yorkers may still receive water through lead-connected service lines.

• Research from the Environmental Working Group (EWG) found measurable levels of disinfection byproducts (TTHMs and HAA5/HAA9) — within legal limits, but above EWG’s stricter health guidelines.

• Rust, iron, and copper can also leach into tap water as pipes corrode over time.

  
  

In short, NYC’s tap water starts clean — but the plumbing inside your home may be the weak link.

Common Contaminants in NYC Tap Water

Even when your water looks clear, it can still carry hidden substances that affect your health and plumbing system.

Lead (Pb)

Lead exposure can come from old pipes, solder, and plumbing fixtures. Even small amounts can harm the brain and nervous system — especially for children and pregnant women.

Corrosion and Rust

Aging metal pipes release iron, copper, and rust, changing both the taste and color of your water.

Disinfection Byproducts (TTHMs and HAAs)

These chemicals form when chlorine reacts with organic matter in the water. Long-term exposure may have health implications.

PFAS (“Forever Chemicals”)

Although generally low in NYC, these persistent chemicals are being closely monitored due to their potential health effects.

Hexavalent Chromium (Cr-6)

Detected at levels below the national average, but still important to address for long-term health protection.

Why Filtration Matters for Every NYC Home

Filtering your water isn’t a luxury — it’s a smart step toward protecting your family and your plumbing system.

A professional-grade filter can significantly reduce your exposure to harmful substances and improve water taste and smell.

Benefits of Home Water Filtration

• Reduces lead, mercury, and heavy metals

• Removes chlorine and chemical residues

• Filters out rust, sediment, and debris

• Protects your health and your plumbing fixtures

Choosing the Right Water Filter for Your Home

When selecting a water filtration system in New York City, make sure it meets NSF International standards (NSF/ANSI 53 or 58) — these certifications guarantee effective lead and contaminant reduction.

Types of Water Filtration Systems

Whole-House Systems (Point-of-Entry)

Installed at the main water line. Protects every faucet, shower, and appliance — ideal for older homes or multi-unit buildings.

Under-Sink Filters (Point-of-Use)

Mounted under your kitchen sink, these multi-stage filters (carbon + ion exchange + membrane) offer excellent protection for drinking and cooking water.

Faucet and Pitcher Filters

Affordable and easy to install, but less effective against heavy metals and PFAS. Great for renters or temporary solutions.

What to Look For When Buying a Filter

When shopping for a water filter in NYC, check for the following features:

• Lead reduction certified to NSF/ANSI 53 or 58

• Chlorine and chemical byproduct removal (TTHMs, HAA)

• PFAS filtration for advanced protection

• Easy cartridge replacement and maintenance

Daily Habits to Improve Water Quality

Even before installing a filter, there are simple habits that help keep your water cleaner:

1. Flush your tap for 30 seconds each morning to clear out stagnant water.

2. Use cold water for drinking and cooking — hot water dissolves metals faster.

3. If your home is over 40 years old, test your water for lead and metals.

4. Clean or replace faucet aerators regularly to prevent buildup.

5. Install a certified filter for an extra layer of safety — especially in pre-1980 homes or if you have young children.

The Bottom Line: Clean Water Starts at Home

New York’s tap water begins pure — but after traveling through decades-old infrastructure, it may carry hidden risks like rust, lead, and other contaminants.

Installing a reliable filtration system isn’t just about taste — it’s a long-term investment in your health, home, and plumbing system.

Clean, safe water is something you can control — right at home.