Well Water Nerd

PFOA in New Jersey well water

In New Jersey, 10% of 20,186 private wells tested between 2002 and 2024 had PFOA above the New Jersey limit (14 ng/L), according to NJDEP.

PFOA is a forever chemical from firefighting foam, industrial discharge and consumer products. It builds up in the body and is linked to kidney and testicular cancer, high cholesterol, immune effects and low birth weight.

Check your PFOA number

Type the value from your lab report. It is compared to the New Jersey limit and the EPA limit, the same way the full interpretation does it.

Test your New Jersey well for PFOA

Certified lab analysis of your own tap water, bottles and prepaid return shipping included. The Essential well panel covers arsenic, uranium, nitrate, lead, copper, manganese, iron, sodium and bacteria; radon and PFAS are add-ons.

Order the Tap Score well water test kit, from $209Already tested? Upload the report

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Systems that remove PFOA

Some links below are affiliate links. If you buy through one, the merchant pays us a commission at no extra cost to you. It does not change which products we list or what the data says.

Some links below are affiliate links. If you buy through one, the merchant pays us a commission at no extra cost to you. It does not change which products we list or what the data says.

For PFOA

Under-sink reverse osmosis system

under-sink or countertop, about $300

Look for NSF/ANSI 58 certification listing the contaminant you need removed.

For PFOA

Whole-house PFAS carbon system

whole-house, at the point of entry, about $3,000

Granular activated carbon certified to NSF/ANSI 53 for PFOA and PFOS; replace media on schedule.

For PFOA

Aquasana SmartFlow reverse osmosis

under-sink or countertop, about $225

Certified to NSF/ANSI 58 and 53 to reduce arsenic (96%, pentavalent), fluoride (90%), lead (99%), nitrate, nitrite and PFOA/PFOS at the kitchen tap, with a remineralizer.

Rather have it installed and sized for your well? Book a free in-home water test with a licensed local company.

Where to get a well tested for PFOA in New Jersey: certified labs, state programs and prices.

By county, from homeowner tests

Share of private wells above the state guidance level (14 ng/L) in tests homeowners sent to the state lab, 2002 to 2024.

CountyAbove state levelWells testedHighest
Middlesex131
Bergen530
Passaic931
Sussex2,246
Morris1,851
Somerset911
Cape May696
Mercer302
Salem951
Burlington2,050
Gloucester1,648
Cumberland1,674
Camden601
Ocean751
Hunterdon1,905

Towns with the highest share above the state level

By county, from individual samples

Public monitoring samples against the EPA limit (4 ng/L); counties with at least 30 samples.

CountyAbove EPA limitSamplesDetectedMedianHighest
Burlington4342%093 ng/L

Sources

  • NJDEP Private Well Testing Act summaries: Share of private wells exceeding each standard in tests required at sale or lease under the New Jersey Private Well Testing Act, September 2002 to December 2024, published by NJDEP. Tests are untreated water at the time of sale or lease, so every well is counted once per transaction. Municipalities with fewer than ten wells are suppressed. Standards are New Jersey's: arsenic 5 ug/L, PFOA 14 ng/L, PFOS 13 ng/L, PFNA 13 ng/L, manganese and iron secondary standards. Uranium and PFAS were added to the required panel in 2021 and 2020, so their well counts are smaller. Retrieved September 9, 2026.
  • Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. PFOA counts and shares are listed on each county and town page with their sources.

Analysis: PFAS in private wells: known sources versus routine testing, from the same public records.