EPA data as of Oct 2026 · page updated 2026-10-29

Home hazard report for 08810 — Dayton, NJ

ZIP 08810 is served by South Brunswick Twp W Di: 1 violation since 2016, latest lead result 0 ppb, PFAS 23 ppt. Middlesex County is in EPA radon zone 2.

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Where ZIP 08810 is

Dashed: ZIP area · blue: utility service area · scroll or pinch to zoom
ZIP code areaZIP center Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

Drinking water: South Brunswick Twp W Di

EPA IDNJ1221004
People served45,450
Sourcesurface water (rivers, lakes)
Connections14,686

Health-based violations

Contaminant or ruleHealth-based violations since 2016
Lead and Copper Rule1

A health-based violation means a contaminant exceeded its legal limit (MCL) or a required treatment technique was not met, as reported by the state to EPA’s SDWIS. All are listed as resolved or archived; the latest began Jul 2022.

Full record for South Brunswick Twp W Di →

Lead

Jan 20260 ppb
Jul 20250 ppb
Jan 20250 ppb
Jul 20240 ppb
Jan 20240 ppb
Jul 20230 ppb
Jan 20230 ppb
Jul 20220 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS (“forever chemicals”)

CompoundHighest resultSamples with detectionEPA limit
PFOA23 ppt6 of 94 ppt MCL
PFBA13 ppt4 of 9—
PFPeA9.5 ppt5 of 9—
PFHxA8.8 ppt5 of 9—
PFHpA6.9 ppt4 of 9—
PFBS3.8 ppt2 of 9—
PFHxSnot detected0 of 9—
PFDAnot detected0 of 9—
PFNAnot detected0 of 9—
PFOSnot detected0 of 94 ppt MCL
HFPO-DA (GenX)not detected0 of 9—

EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.

Radon in Middlesex County

EPA radon zone 2 — moderate potential. Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.

Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →

Natural hazard risk

FEMA rates the overall natural-hazard risk of this neighborhood (census tract) as Relatively High, with very low social vulnerability and relatively low community resilience.

Riverine floodingVery High
Strong windVery High
EarthquakeRelatively High
Ice stormRelatively High
Winter weatherRelatively High
Cold waveRelatively Moderate
DroughtRelatively Moderate
HurricaneRelatively Moderate
TornadoRelatively Moderate
HailRelatively Low
Heat waveRelatively Low
LandslideRelatively Low
LightningRelatively Low
WildfireRelatively Low

FEMA National Risk Index (December 2025): expected annual losses from each hazard combined with social vulnerability and community resilience, rated relative to all U.S. census tracts. Hazards not listed are not applicable here. It describes the area, not a single building; flood insurance maps (FEMA FIRMs) decide flood-insurance requirements.

Live conditions: river gauges and flood levels · tornado warnings · wildfire detections · earthquakes — our sister maps, updated from NOAA, USGS and NASA every few minutes.

Superfund sites nearby

SiteStatusDistance
JIS Landfill
Jamesburg, South Brunswick Township, New Jersey · EPA ID NJD097400998
Active (final NPL)1.4 mi
South Brunswick Landfill
South Brunswick, New Jersey · EPA ID NJD980530679
Cleaned up & deleted4.7 mi
Monroe Township Landfill
Monroe Township, New Jersey · EPA ID NJD980505671
Cleaned up & deleted4.7 mi
Fried Industries
East Brunswick Township, New Jersey · EPA ID NJD041828906
Active (final NPL)5.8 mi
Higgins Farm
Franklin Township, New Jersey · EPA ID NJD981490261
Active (final NPL)6.4 mi
Higgins Disposal
Franklin Township, New Jersey · EPA ID NJD053102232
Active (final NPL)6.7 mi
Montgomery Township Housing Development
Montgomery Township, New Jersey · EPA ID NJD980654164
Active (final NPL)8.5 mi
Rocky Hill Municipal Well
Rocky Hill Borough, New Jersey · EPA ID NJD980654156
Active (final NPL)8.6 mi
Sayreville Landfill
Sayreville, New Jersey · EPA ID NJD980505754
Cleaned up & deleted8.8 mi
CPS/Madison Industries
Old Bridge Township, New Jersey · EPA ID NJD002141190
Active (final NPL)9.7 mi

EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions about 08810

Who supplies drinking water to ZIP 08810?

South Brunswick Twp W Di (EPA ID NJ1221004), a surface water (rivers, lakes) system serving about 45,450 people.

Is there lead in Dayton, NJ tap water?

The utility’s latest 90th-percentile lead result (Jan 2026) was 0 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.

Does Dayton, NJ water have PFAS?

Highest PFOA or PFOS result in EPA’s 2023–2025 testing was at or above 4.0 ppt, EPA’s 2024 maximum contaminant level for each. 6 PFAS compounds detected.

Has the water system in 08810 had violations?

Health-based violations since 2016: Lead and Copper Rule. All are listed as resolved.

What natural hazards affect ZIP 08810?

FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively High; the highest-rated hazards are riverine flooding (very high), strong wind (very high), earthquake (relatively high).

Are there Superfund sites near 08810?

Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code. Sites within 10 miles: JIS Landfill (1.4 mi, Active (final NPL)); South Brunswick Landfill (4.7 mi, Cleaned up & deleted); Monroe Township Landfill (4.7 mi, Cleaned up & deleted).

Is radon a problem in Middlesex County?

Middlesex County is in EPA radon zone 2 (moderate potential). Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.