Best Water Filter for New York City: Lead and Chloramine

For most NYC apartments, a quality under-sink filter or countertop RO system is the right answer — not a whole-house system. The best specific recommendation depends on your building’s age: if you’re in a pre-1987 building, lead removal is the priority. If your building is newer, chloramine removal matters most. The Aquasana OptimH2O under-sink RO system (~$199) covers both and works without a permanent installation in most rentals.

What’s Actually in NYC Tap Water

New York City has one of the largest and best-protected unfiltered surface water supplies in the world. Water comes from 19 reservoirs across the Catskill/Delaware and Croton watershed systems upstate — a 1,972-square-mile protected area that supplies roughly 8.3 million city residents plus another million in Westchester, Putnam, Ulster, and Orange counties.

The NYC Department of Environmental Protection (DEP) publishes an annual water quality report. The 2023 report showed that water entering the distribution system meets every EPA Safe Drinking Water Act standard. On the numbers the DEP controls — source water quality, treatment, distribution system monitoring — NYC performs well.

The problems happen inside buildings, particularly older ones.

Citable fact: NYC’s Catskill/Delaware watershed is one of only five large unfiltered surface water systems in the US to receive a filtration avoidance determination from the EPA, meeting the strictest source water protection criteria.

Lead

This is the primary concern for most NYC residents. NYC has an estimated 360,000 lead service lines — the pipes that connect homes to the city water main — most of them installed before the federal lead pipe ban took effect in 1986. Inside buildings, lead solder was used extensively until 1987. The city water itself contains less than 1 ppb lead at the distribution system level, but water sitting in older pipes can pick up significant lead before it reaches your tap.

The EPA’s action level for lead is 15 ppb. NYC DEP’s own testing has found in-home samples at some older residences exceeding this threshold. The city’s lead service line replacement program is ongoing but will take years to complete.

Citable fact: The EPA action level for lead in drinking water is 15 parts per billion (ppb). No level of lead exposure is considered safe, and the EPA’s maximum contaminant level goal (MCLG) for lead is zero.

If you live in a building constructed before 1987, especially a pre-war or early post-war building with original plumbing, lead removal should be your filter’s primary job.

Chloramines

NYC switched from free chlorine to chloramines (a combination of chlorine and ammonia) as its primary disinfectant in the early 2000s. Chloramines are more stable than free chlorine, which helps maintain disinfection throughout NYC’s long distribution system. But they’re harder to remove.

Standard activated carbon filters — including most Brita and PUR pitchers — remove chlorine well but are much less effective against chloramines. You need catalytic carbon (also called catalytic activated carbon or CAC) or a reverse osmosis membrane to reliably remove chloramines and their byproducts.

Citable fact: Chloramines require catalytic activated carbon or reverse osmosis to remove effectively. Standard granular activated carbon (GAC) removes free chlorine well but has limited effectiveness against the chloramine bond.

NYC’s switch to chloramines also means the water tends to taste slightly different than chlorinated water — some people describe it as a faint “pool” smell at certain times of year. A good filter eliminates this entirely.

PFAS

The EPA’s 2024 PFAS National Primary Drinking Water Regulation sets maximum contaminant levels of 4 parts per trillion (ppt) for PFOA and PFOS — the two most studied forever chemicals. NYC DEP has reported that PFAS levels in the watershed supply are below the new EPA MCL. However, PFAS can enter drinking water from local sources, including fire suppression foam used at airports, military facilities, and industrial sites near distribution infrastructure.

If PFAS removal is a priority for you, reverse osmosis is the most effective residential treatment — it removes 94 to 99.9% of PFAS compounds.

Disinfection Byproducts

Chloramines react with organic matter in water to form disinfection byproducts (DBPs), including trihalomethanes (THMs) and haloacetic acids (HAAs). NYC’s 2023 report shows total THMs well below the EPA limit of 80 ppb, but for pregnant women, infants, and anyone with immune concerns, reducing DBP exposure makes sense.

Reverse osmosis and activated carbon filters both reduce THMs and HAAs significantly.

Sediment

Older NYC buildings with aging internal plumbing can have sediment, rust particles, or turbidity — especially in buildings that haven’t had plumbing updates in decades. This is less a health concern than a taste and appliance concern, but a good filter system includes a sediment pre-filter to handle it.

Recommended Filtration Systems for NYC

Best for Apartment Dwellers and Renters: Aquasana OptimH2O Under-Sink RO (~$199)

The Aquasana OptimH2O is the strongest all-around choice for most NYC apartments. It uses a 5-stage system combining a reverse osmosis membrane with Aquasana’s Claryum catalytic carbon technology — which means it handles chloramines, lead, PFAS, and THMs in one unit. Certified to NSF/ANSI Standards 42, 53, and 58.

The system fits under most NYC kitchen sinks without drilling into countertops. Installation involves connecting to the cold water supply line and drain — a 1-2 hour DIY job for anyone comfortable with basic plumbing, or a 30-minute job for a plumber. Filter replacements run approximately $80-$100 per year.

Who this is for: Renters in pre-1987 buildings concerned about lead and chloramines. Homeowners who want point-of-use protection for drinking and cooking water without a whole-house system. Anyone with PFAS concerns.

Best for Renters Without Under-Sink Access: AquaTru Classic Countertop RO (~$299)

If your lease prohibits under-sink modifications or you’re in a furnished rental, the AquaTru Classic sits on your countertop and requires no installation — just plug it in and fill the tank with tap water. It uses a 4-stage reverse osmosis system certified to NSF/ANSI 58, removing 99.99% of PFAS, 99% of lead, and significant chloramine reduction.

The downside: it holds about 3 liters of filtered water and takes time to refill, so it’s best for 1-2 person households. Annual filter cost is roughly $75-$90.

Best for NYC Homeowners (Whole House): SpringWell CF1 (~$1,040)

If you own a brownstone, townhouse, or co-op with access to your main water supply line, the SpringWell CF1 is the whole-house standard. It removes 99.6% of chlorine and chloramines using a catalytic carbon tank, handles THMs and other organic compounds, and has a 1,000,000-gallon capacity (~10 years). It does not remove lead from the main supply — for lead, you’d still want a point-of-use filter at drinking taps in an older building.

Installation requires a plumber or experienced DIYer, 2-4 hours. Not appropriate for apartment renters.

Best Budget Option: Waterdrop D4 Reverse Osmosis Pitcher (~$79)

For NYC renters on a budget who primarily want lead and chloramine reduction, the Waterdrop D4 reverse osmosis pitcher removes 99% of lead and reduces chloramines through its RO membrane. It’s slower than a countertop system and holds less water, but it works without any installation and costs under $80 upfront.

Comparison Table

How to Test Your NYC Water

If you want to know exactly what’s in your specific apartment’s water, a mail-in test kit is the most accurate option. The Tap Score Standard City Water Test (~$179) tests for lead, PFAS, chloramines, and over 100 other parameters and gives a lab-certified result. See our full guide to home water testing for a breakdown of which test levels are worth paying for.

You can also request NYC DEP’s free lead test kit by calling 311 — they’ll send you a sample bottle and analyze it at no cost.

Frequently Asked Questions

Is NYC tap water safe to drink without a filter?

Yes, NYC tap water meets all EPA Safe Drinking Water Act standards and is technically safe to drink straight from the tap. However, “safe” under federal standards and “optimal” aren’t the same thing. Lead risk in pre-1987 buildings and chloramine taste are real issues a filter addresses. See our full breakdown of when tap water is and isn’t safe.

What filter removes chloramines from NYC water?

Catalytic activated carbon or reverse osmosis. Standard carbon pitcher filters (Brita, PUR) are much less effective against chloramines than they are against free chlorine. For NYC, you specifically need a filter with catalytic carbon media or an RO membrane. The Aquasana OptimH2O and AquaTru both qualify.

Does NYC water have lead?

The city’s water supply itself contains minimal lead — under 1 ppb at the distribution system level. The risk comes from in-building plumbing in pre-1987 buildings, where lead pipes, lead solder, or brass fixtures can leach lead into standing water. If you’re in an older building, use an NSF/ANSI 53-certified filter for lead removal or request the free DEP lead test first.

What is the best water filter for a NYC apartment lease that prohibits modifications?

The AquaTru Classic countertop RO system requires no installation at all — it sits on your counter and plugs into a standard outlet. It’s the best option when under-sink connections aren’t permitted. Another option: a high-quality RO pitcher like the Waterdrop D4, which requires no installation and no power.

Does NYC water have PFAS?

NYC DEP reports that PFAS levels in the watershed supply are below the EPA’s new 4 ppt MCL for PFOA and PFOS. If you want to be certain about your specific building’s water, a certified lab test is the most reliable way to confirm. For PFAS removal, reverse osmosis is the most effective residential treatment option.