What is the safe level of lead in drinking water?

There is no safe level of lead in drinking water. The EPA's "action level" of 15 ppb (parts per billion) is a regulatory trigger — not a health-based standard. At 15 ppb, utilities must take action, but that level still poses meaningful health risk, especially for children. The EWG recommends a health goal of 1 ppb. The CDC states that no blood lead level is safe for children. If your water tests positive for any lead, filtration is warranted.

How does lead get into my tap water if the source water is clean?

Lead enters your water through your own plumbing — not from the treatment plant or source water, which is typically lead-free. Lead service lines (the pipes connecting the street main to your home) are the largest source. Homes built before 1986 may have lead solder in interior plumbing. Brass faucets and fixtures may also leach lead, particularly after sitting unused for hours. This is why "first draw" water (after the tap hasn't run for 6+ hours) typically has the highest lead concentration.

Does a Brita filter remove lead?

It depends on which Brita. The Brita Standard pitcher uses basic activated carbon and is NSF/ANSI 42 certified only — it does not remove lead. The Brita Elite (formerly Longlast) pitcher is NSF/ANSI 53 certified for lead reduction and removes up to 99% of lead in certified testing. The filter matters more than the brand name. Always check for NSF/ANSI 53 certification specifically for lead reduction before buying any pitcher.

Does boiling water remove lead?

No. Boiling water does not remove lead — it concentrates it. As water evaporates during boiling, the remaining water has a higher lead concentration per volume. This is a dangerous misconception. Lead is a dissolved mineral, not a pathogen, and heat doesn't affect it. The only effective solution is certified filtration.

How do I know if I have lead pipes?

The best approach is to check your water utility's lead service line inventory (now publicly required under the EPA's revised Lead and Copper Rule). You can also do a scratch test: find the pipe entering your home near the water meter, scratch it with a key. If it's shiny silver (like a mirror), it's lead. If dull gray, it's galvanized steel. Copper pipes are orange-brown. If your home was built before 1986, have your water tested regardless — interior solder may contain lead even if service lines don't.

How to Remove Lead from Drinking Water

The Lead Problem: It's in Your Plumbing, Not the Water Plant

Here's the thing about lead in drinking water that most people don't understand: the water leaving your treatment plant is almost certainly lead-free. The problem starts the moment water enters the distribution network — and reaches its worst point inside your home.

Lead service lines — the pipes connecting the water main under your street to the meter at your house — are the primary source of lead exposure in drinking water across the United States. An estimated 9–10 million lead service lines remain in service across the country, concentrated in cities built before 1950. The EPA's 2021 Lead and Copper Rule revision requires utilities to create inventories of all service lines and replace lead lines, but the timeline for full replacement is a decade or more.

Inside older homes, lead can also enter from lead-tin solder used to join copper pipes (banned in 1986 but present in millions of older homes), brass fixtures manufactured before the EPA's "lead-free" standard was tightened in 2014, and galvanized steel pipes that have accumulated lead from decades of water carrying trace lead from upstream.

Children Under 6 Are the Highest-Risk Group

Lead exposure during early childhood causes irreversible neurological damage — lower IQ, attention deficits, behavioral problems, and developmental delays. These effects have no treatment. There is no safe blood lead level in children, according to the CDC. If you have young children and have not tested your water for lead, test immediately.

Health Effects of Lead in Water

Lead is a cumulative neurotoxin. It displaces calcium and zinc in the body and accumulates in bones and soft tissue over a lifetime. The health effects depend on dose, duration, and the age at exposure:

Infants and children under 6

Permanent cognitive impairment, lower IQ (studies show a measurable IQ drop per 10 μg/dL increase in blood lead), attention-deficit disorders, behavioral problems, slowed motor development, hearing loss. This damage is irreversible.

Pregnant women

Lead crosses the placenta. Prenatal exposure is associated with premature birth, low birth weight, and neurological effects in the developing fetus. Lead also mobilizes from bone stores during pregnancy.

Adults

Increased blood pressure, kidney damage with long-term high exposure, reproductive effects (reduced fertility), cardiovascular risk. Adults tolerate higher blood lead levels before visible symptoms appear, but subclinical effects on cardiovascular and renal function occur at levels formerly considered acceptable.

How to Test Your Water for Lead

Lead testing matters more than most contaminants because results are highly location-specific. Your neighbor's water could test at zero while yours tests above 15 ppb — depending on pipe age, water chemistry (pH and alkalinity affect how corrosive water is to lead pipes), and whether you're drawing first-flush water.

First-Draw vs. Flushed Sample — This Matters

EPA testing protocol for utilities involves collecting water that has sat in pipes for 6+ hours (first-draw). This captures worst-case lead levels from standing water in contact with lead-bearing plumbing. If you test after running the tap for 2 minutes (flushed), you may get a false low reading. Always test first-draw water — collect from the cold tap first thing in the morning before any water has run.

Tap Score Lead Test

Tests for lead (Pb) plus 5 other heavy metals including copper, arsenic, and cadmium. EPA-certified lab, results in 5–7 business days with a health interpretation and recommended actions based on your specific levels.

$99

Your Utility's Free Testing Program

Under the Lead and Copper Rule, most utilities are required to offer free lead testing to residents, especially those in older homes or on lead service lines. Contact your water utility directly. Chicago, Detroit, Newark, and many older northeastern cities have active free-testing programs.

Free

Best Filters for Lead Removal

The certification to look for is NSF/ANSI 53 — specifically listed for lead (Pb) reduction. NSF/ANSI 42 is for aesthetic effects only (taste, odor, chlorine). NSF/ANSI 53 is the health-effects standard. Both certifications can appear on the same product, but only NSF 53 validates lead reduction.

Pitcher Filters — Budget-Friendly, NSF 53 Required

Not all pitcher filters remove lead. Many popular options — including the standard Brita — are NSF/ANSI 42 only. You need to verify NSF 53 certification before purchasing.

Clearly Filtered Pitcher ($90) — NSF/ANSI 53 certified, removes 99.5% of lead. Also certified for PFAS, chromium-6, and 230+ other contaminants. Best overall pitcher for lead.

Brita Elite ($42) — NSF/ANSI 53 certified for lead, removes up to 99%. Budget pick. Replacement filters ($12) are widely available. Does not remove PFAS or fluoride.

ZeroWater ($35) — NSF/ANSI 53 certified for lead. Uses ion-exchange resin. Removes lead but filter life is short (15–40 gallons depending on TDS), making annual cost higher than Brita Elite.

Under-Sink and RO Filters — Higher Throughput

Aquasana AQ-5300+ ($149) — NSF/ANSI 53 certified under-sink filter. Dual-stage carbon block. 600-gallon filter life (~6 months for a family of 4), removing 99% of lead at 0.5 GPM flow rate.

Waterdrop G3P800 RO ($649) — NSF/ANSI 58 certified. Removes 99%+ of lead. Best for households with high lead levels (above 15 ppb) where a pitcher isn't sufficient throughput.

Whole-House Filters Don't Fix Lead

If your lead source is interior plumbing or a lead service line, a whole-house carbon filter won't help — the water passes through the lead pipes after the whole-house filter. You need point-of-use filtration at the tap where you drink and cook.

Immediate Steps if Your Water Tests Positive for Lead

1Install a certified NSF/ANSI 53 filter at your drinking tap immediately. Use filtered water for drinking, cooking, and especially making baby formula.
2Run cold water for 2 minutes before using it — especially after the tap hasn't been used for 6+ hours. Hot water dissolves more lead from pipes.
3Never use hot tap water for cooking, drinking, or formula. Hot water leaches more lead than cold.
4Contact your utility to check if you're on a lead service line. If yes, ask about their line replacement program.
5Consult your pediatrician about blood lead level testing for children under 6.