Home hazard report for 08831 — Monroe Township, NJ
ZIP 08831 is served by Monroe Twp Utility Department: no health-based violations since 2016, latest lead result 1.3 ppb, PFAS 11.5 ppt. Middlesex County is in EPA radon zone 2.
No health-based violations reported since 2016.
90th-percentile lead in the latest round (Jan 2026). Lead comes mostly from household plumbing and service lines, so individual homes can be higher.
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. 7 PFAS compounds detected.
Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.
FEMA’s overall natural-hazard risk for this census tract, relative to the rest of the U.S.
Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code.
Active weather alerts
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Where ZIP 08831 is
Dashed: ZIP area · blue: utility service area · scroll or pinch to zoomDrinking water: Monroe Twp Utility Department
Health-based violations
No health-based violations reported since 2016.
Full record for Monroe Twp Utility Department →
Other systems overlapping this ZIP: South Brunswick Twp W Di.
Lead
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”)
| Compound | Highest result | Samples with detection | EPA limit |
|---|---|---|---|
| PFHxS | 13.6 ppt | 5 of 10 | — |
| PFPeA | 11.9 ppt | 3 of 10 | — |
| PFOS | 11.5 ppt | 4 of 10 | 4 ppt MCL |
| PFBA | 11.3 ppt | 3 of 10 | — |
| PFHxA | 11.2 ppt | 3 of 10 | — |
| PFOA | 11.2 ppt | 4 of 10 | 4 ppt MCL |
| PFHpA | 6.9 ppt | 3 of 10 | — |
| PFNA | not detected | 0 of 10 | — |
| HFPO-DA (GenX) | not detected | 0 of 10 | — |
| PFBS | not detected | 0 of 10 | — |
| PFDA | not detected | 0 of 10 | — |
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.
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
| Site | Status | Distance |
|---|---|---|
| Monroe Township Landfill Monroe Township, New Jersey · EPA ID NJD980505671 | Cleaned up & deleted | 2.5 mi |
| JIS Landfill Jamesburg, South Brunswick Township, New Jersey · EPA ID NJD097400998 | Active (final NPL) | 2.8 mi |
| Fried Industries East Brunswick Township, New Jersey · EPA ID NJD041828906 | Active (final NPL) | 7.5 mi |
| Burnt Fly Bog Marlboro Township, New Jersey · EPA ID NJD980504997 | Active (final NPL) | 8.5 mi |
| South Brunswick Landfill South Brunswick, New Jersey · EPA ID NJD980530679 | Cleaned up & deleted | 8.6 mi |
| Sayreville Landfill Sayreville, New Jersey · EPA ID NJD980505754 | Cleaned up & deleted | 8.6 mi |
| CPS/Madison Industries Old Bridge Township, New Jersey · EPA ID NJD002141190 | Active (final NPL) | 8.8 mi |
| Evor Phillips Leasing Old Bridge Township, New Jersey · EPA ID NJD980654222 | Active (final NPL) | 9.1 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 08831
Who supplies drinking water to ZIP 08831?
Monroe Twp Utility Department (EPA ID NJ1213002), a groundwater (wells) system serving about 36,000 people.
Is there lead in Monroe Township, NJ tap water?
The utility’s latest 90th-percentile lead result (Jan 2026) was 1.3 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 Monroe Township, 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. 7 PFAS compounds detected.
Has the water system in 08831 had violations?
No health-based violations reported since 2016.
What natural hazards affect ZIP 08831?
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 08831?
Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code. Sites within 10 miles: Monroe Township Landfill (2.5 mi, Cleaned up & deleted); JIS Landfill (2.8 mi, Active (final NPL)); Fried Industries (7.5 mi, Active (final NPL)).
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.