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Florham Park, New Jersey - Tap Water Quality

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Tap Water Report Card for Florham Park, NJ

The Verdict: C-

After careful review, Florham Park, New Jersey's tap water quality received a C- or Fair rating on the Town Water Check index, which ranges from A to F.

Disclaimer: The Town Water Check grading system is our opinion, based on measured contaminant levels as well as the known effects on long-term human health. Others may reach a different conclusion. For the most current information, please consult your water provider or municipality.

The Good News

All biological and radiological contaminants were either undetectable or well within EPA limits. This is great news and means that Florham Park's water treatment processes are effectively handling these types of contaminants. Additionally, pesticides and disinfection byproducts are also well within safe limits.

Florham Park, New Jersey Municipal Building
Florham Park, New Jersey Municipal Building

Florham Park receives its water from four wells drawing from a sand and gravel buried aquifer system. Without water, life is not possible. It's needed for transporting and dissolving nutrients, maintaining body temperature as well as our very shape. In fact, humans are about 60% water.

Heavy Metals: The Invisible Threat

Heavy metals are among the most common and concerning contaminants found in drinking water. The EPA has set maximum contaminant levels (MCLs) for these metals, ranging from 2 to 100 parts per billion (PPB), but many health experts argue that there is no truly "safe" level of exposure, especially for vulnerable populations like children and pregnant women.

Educational graphic showing Lead (golden chunk), Arsenic (gray rock), Chromium (metallic cube), Mercury (silver droplet), and Cadmium (red splash)

Visual representations of five heavy metals

Data table with EPA permissible amounts, primary sources, and health effects for five heavy metals

EPA limits and health effects of heavy metals

Florham Park's Heavy Metal Levels

Florham Park's tap water shows acceptable results for heavy metals, with all levels within EPA limits. Lead was detected at 16% of EPA maximum, arsenic at 10%, and chromium at 4%. Mercury and cadmium were not detected. While these levels are within safe limits, the ultimate goal is for lead and arsenic to be undetectable, as there is no truly safe level of exposure to these metals.

Graph of Percent of heavy metals in Florham Park, NJ Tap Water vs EPA limits

PFAS: The Forever Chemicals

In the 1930s, chemists discovered that by bonding carbon to fluorine, they could create incredibly stable compounds that resisted heat, water, and oil. These compounds, known as PFAS (per- and polyfluoroalkyl substances), became the backbone of countless products: non-stick cookware, waterproof clothing, firefighting foam, and even food packaging.

Non stick pan with food demonstrating one source of PFAS

But there was a catch: PFAS don't break down. Ever. They accumulate in the environment, in our bodies, and in our water supplies. The EPA has set a limit of 4 parts per trillion (ppt) for certain PFAS compounds—a level so low it's almost unimaginable. To put that in perspective, 4 ppt is like finding 4 drops of water in an Olympic-sized swimming pool.

Florham Park's PFAS Results: A Key Concern

PFOA exceeded the future EPA limits at 285%, which was a key factor in Florham Park's C- grade. While PFAS limits are not currently legally enforceable, we use them for consistency across all municipalities. PFOS was detected at 50% of the EPA limit, which is within safe limits.

Health Note: PFAS or Forever Chemicals have been known to compromise the immune system, increase cholesterol levels, cause developmental issues in children and increase certain cancer rates. Note that to be consistent, we use the strictest EPA levels ever set, whether enforceable or not, not state or local limits.

Graph of Percent of PFAS/Forever Chemicals in Florham Park, NJ Tap Water vs EPA limits

Other Contaminants

On a more positive note, no other significant issues were detected in Florham Park tap water. All measured contaminants including radium, TTHM (total trihalomethanes), chlorine, copper, nitrate, uranium, nickel, barium, and HAA5 (haloacetic acids) are well within EPA limits.

Graph of Percent of Various contaminants in Florham Park, NJ Tap Water vs EPA limits

How We Grade Water Quality

To better understand our grading system, think of H2O or water as nature's masterpiece. Marking it up, or adding contaminants, generally diminishes its quality. Purer water or at least within all EPA limits will result in a good grade. Note that there are a few exceptions to the "less is more" rule. Fluoride, in the right quantity, can contribute to long term dental health, especially in children. Calcium, magnesium and potassium are also important nutrients. Note that these nutrients can also be obtained with a balanced diet or in the case of fluorine, by using fluoridated toothpaste.

Drawing of Mona Lisa with defaced version drawing an Analogy between defacing artwork & tap water quality

Analogy between defacing artwork & tap water quality

The more toxic the contaminant, in greater quantity, the lower the grade. Multiple contaminants further affect the grade. For instance, water containing both lead and arsenic would result in a worse grade than having either, individually.

How Does Florham Park Compare to Nearby Towns?

The C-, Fair rating is actually slightly above average for the local area. Nearby Orange, New Jersey with no detectable lead, arsenic or forever chemicals, was the only local municipality to rate excellent. Florham Park's C- grade places it in the middle range among neighboring communities.

Map comparison, with grades of Florham Park, NJ tap water to nearby communities

What Can You Do? Filter Your Water

Even though Florham Park's water quality is fair, given the modest levels of heavy metals, especially arsenic, you may want to consider using a reverse osmosis (RO) type filter with a NSF/ANSI 58 standard. Alternatively, some Carbon Block filters with an NSF/ANSI 53 rating may also be effective. Just ensure they are certified to remove your particular water contaminants. If you would like to find out more about these filters, please visit: www.townwatercheck.com/water-filter-selection

Reverse Osmosis Water Filter Compared to Carbon Block Filter

Nearby Municipalities

Compare Florham Park's water quality with nearby communities:

Final Thoughts

Community Park in Florham Park, NJ

Community Park in Florham Park, NJ

We hope that our tap water information has proven helpful.

For the latest tap water info, check with your water provider or municipality. We make no claims, positive or negative, regarding water safety.

Note: The Consumer Confidence Report does not indicate active water fluoridation in Florham Park.

Town Water Check wishes you a healthy and informed life and a cleaner, more beautiful planet.

Disclaimer: This analysis is based on publicly available data from the 2024/2025 Consumer Confidence Reports (CCRs) provided by the municipality or water provider.