ZipCheckup grade for 07820: C.

A mixed picture - some signals here are worth your attention.

Your top priority: test this home for radon. Check your ZIP → EPA radon map

Water Quality Report

Allamuchy, NJ (07820): PFAS Detected in Mapped Water Systems - 63/100

EPA data for Allamuchy Twp Water & Sewer

PFAS Detected High County Radon Potential

EPA records for the water systems mapped to 07820 in Allamuchy, NJ contain 11 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources

Latest air quality, EPA records and weather alerts Current data temporarily unavailable

Current EPA violation data unavailable

Safety Score

C 63/100

Water Quality Concerns 11 non-health-based violation records in EPA data

Lead Risk Below action level 0.004 mg/L, 90th percentile, sample period ending 2025-12-31

NFIP Claim History N/A

Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

Water EPA records for water systems mapped to this ZIP show 11 violations (non-health) (since 2021).
Lead The reported 90th-percentile lead result of 0.004 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.

Contaminant Summary

Violations on record (not health-based)

11 violations PFAS detected

Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record

ZIP-level Home Safety model score: 63 / 100

Bottom 21% of U.S. ZIP codes

Water System

5,423

People Served

Health Violations (since 2021)

Groundwater

Water Source

0.004 mg/L

Reported Lead Result1.7× the national median for this measure

Zone 1

County Radon Potential · High

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Review the 1 elevated finding listed below for 07820 in Allamuchy - no critical-level conditions are on record.

PFAS Detected in Water Supply HIGH

PFAS ("forever chemicals") have been detected in water systems serving this ZIP code. Highest level: 0.0033 µg/L.

What to do: Consider a water filter rated for PFAS reduction (NSF/ANSI 53 or 58). See PFAS Contamination below ↓ ↓

Score Breakdown

Overall Home Safety Score: 63/100

This is the published model score. Component and domain values are shown independently; they are not added together on this page.

Canonical components

EPA water compliance

80/100

Observed

PFAS MCL screen

100/100

Observed

EPA radon zone

0/100

Observed

Annual EPA AirData AQI

100/100

Observed

Required domains

Drinking water

90/100

Indoor environment

0/100

Outdoor environment

100/100

Coverage: 4 of 4 components and 3 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (7) HIGH

Your Water System

ZIP code 07820 in Allamuchy, New Jersey is mapped to the water system Allamuchy Twp Water & Sewer (EPA ID: NJ2101001). This system provides water to approximately 5,423 people from groundwater sources.

Other Water Quality Reports in New Jersey

07001 (Avenel) - 3 violations recorded for mapped water systems
07002 (Bayonne) - 2 violations recorded for mapped water systems
07003 (Bloomfield) - 10 violations recorded for mapped water systems
07004 (Fairfield) - 5 violations recorded for mapped water systems
07005 (Boonton) - 116 violations recorded for mapped water systems
07006 (Caldwell) - 38 violations recorded for mapped water systems
07007 (Caldwell)
07008 (Carteret) - 3 violations recorded for mapped water systems
07009 (Cedar Grove) - 7 violations recorded for mapped water systems
07010 (Cliffside Park) - 1 violation recorded for mapped water systems
07011 (Clifton) - 4 violations recorded for mapped water systems
07012 (Clifton) - 4 violations recorded for mapped water systems
07013 (Clifton) - 4 violations recorded for mapped water systems
07014 (Clifton) - 4 violations recorded for mapped water systems
07015 (Clifton)
07016 (Cranford)
07017 (East Orange) - 48 violations recorded for mapped water systems
07018 (East Orange) - 48 violations recorded for mapped water systems
07019 (East Orange)
07020 (Edgewater) - 1 violation recorded for mapped water systems

Nearby Water Quality Reports

07879 (Tranquility) - 3 mi
07839 (Greendell) - 4 mi
07821 (Andover) - 4 mi - 84 violations recorded for mapped water systems
07846 (Johnsonburg) - 5 mi
07828 (Budd Lake) - 5 mi - 472 violations recorded for mapped water systems
07840 (Hackettstown) - 5 mi - 389 violations recorded for mapped water systems
07874 (Stanhope) - 6 mi - 53 violations recorded for mapped water systems
07880 (Vienna) - 6 mi - 18 violations recorded for mapped water systems
07857 (Netcong) - 6 mi - 12 violations recorded for mapped water systems
07836 (Flanders) - 8 mi - 414 violations recorded for mapped water systems

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Allamuchy Twp Water & Sewer (NJ2101001) on EPA.gov.

4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

PFAS Contamination Detected

PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 07820.

Detected compounds: PFHxS.

Highest measured level: 0.0033 µg/L

Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.

Learn about PFAS risks → Find a PFAS filter →

📊 EPA UCMR5 · View source →

Environmental Hazards (9) HIGH

Home & Infrastructure (4) OK

Cost & Community (7) OK

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Frequently Asked Questions

Is the tap water in 07820 safe to drink?

EPA SDWIS records 11 violations since 2021 across the water systems mapped to ZIP 07820 (primary system: Allamuchy Twp Water & Sewer), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 07820's water come from?

The recorded water source for Allamuchy Twp Water & Sewer, a system mapped to ZIP code 07820, is Groundwater. This system serves approximately 5,423 people.

How does Allamuchy water compare to the national average?

Allamuchy's Home Safety Score ranks lower than 79% of U.S. ZIP codes, and lower than 57% of ZIP codes within New Jersey.

How can I get my water tested in Allamuchy?

If Allamuchy Twp Water & Sewer supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

Is lead a concern in 07820 tap water?

The Lead and Copper Rule record selected for 07820 reports a 90th-percentile lead result of 0.004 mg/L for a water system mapped to this ZIP (record date 2025-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.

What is the radon risk for 07820?

07820 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Warren County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

Are there PFAS (forever chemicals) in 07820's water?

Yes, PFAS have been detected in samples from water systems mapped to 07820. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.

How to cite this page

APA

ZipCheckup. (2026). Allamuchy, NJ (07820): PFAS Detected in Mapped Water Systems - 63/100. https://zipcheckup.com/report/07820/

BibTeX

@misc{zipcheckup-report-07820,
  author = {{ZipCheckup}},
  title  = {{Allamuchy, NJ (07820): PFAS Detected in Mapped Water Systems - 63/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/07820/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 07820

ZIP Code	City, State	Distance	Grade	Violations
07879	Tranquility, NJ	2.6 mi	N/A	0
07839	Greendell, NJ	3.7 mi	N/A	0
07821	Andover, NJ	4.1 mi	N/A	84
07846	Johnsonburg, NJ	4.6 mi	N/A	0
07828	Budd Lake, NJ	4.9 mi	F	472
07840	Hackettstown, NJ	4.9 mi	F	389
07874	Stanhope, NJ	5.7 mi	N/A	53
07880	Vienna, NJ	6.0 mi	N/A	18
07857	Netcong, NJ	6.1 mi	D	12
07836	Flanders, NJ	7.7 mi	F	414