Home hazard report for 08604 — Trenton, NJ
ZIP 08604 is served by Trenton Water Works (as listed by the state): 20 violations since 2016, latest lead result 6 ppb, PFAS not detected. Mercer is in EPA radon zone 1.
Health-based violations since 2016: Lead and Copper Rule, Tthm, Total Haloacetic Acids (Haa5). 1 is still listed as unresolved in EPA records.
90th-percentile lead in the latest round (Jan 2026). Lead comes mostly from household plumbing and service lines, so individual homes can be higher.
None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.
Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.
The nearest active Superfund site is 3.4 miles away.
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Where ZIP 08604 is
blue: utility service area · scroll or pinch to zoomDrinking water: Trenton Water Works
Health-based violations
| Contaminant or rule | Health-based violations since 2016 |
|---|---|
| Lead and Copper Rule | 7 |
| Tthm | 5 |
| Total Haloacetic Acids (Haa5) | 4 |
| Interim Enhanced Surface Water Treatment Rule | 2 |
| Surface Water Treatment Rule | 2 |
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. 1 still listed as unresolved (“unaddressed” or “addressed” but not yet returned to compliance); the latest began Oct 2024.
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 | not detected | 0 of 4 | — |
| PFHxA | not detected | 0 of 4 | — |
| PFDA | not detected | 0 of 4 | — |
| PFOA | not detected | 0 of 4 | 4 ppt MCL |
| PFOS | not detected | 0 of 4 | 4 ppt MCL |
| PFNA | not detected | 0 of 4 | — |
| PFHpA | not detected | 0 of 4 | — |
| PFBS | not detected | 0 of 4 | — |
| PFBA | not detected | 0 of 4 | — |
| HFPO-DA (GenX) | not detected | 0 of 4 | — |
| PFPeA | not detected | 0 of 4 | — |
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 Mercer
EPA radon zone 1 — highest potential. Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.
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 →
Superfund sites nearby
| Site | Status | Distance |
|---|---|---|
| Historic Potteries Trenton, New Jersey · EPA ID NJN000203535 | Active (final NPL) | 3.4 mi |
| Higgins Disposal Franklin Township, New Jersey · EPA ID NJD053102232 | Active (final NPL) | 9.0 mi |
| Rocky Hill Municipal Well Rocky Hill Borough, New Jersey · EPA ID NJD980654156 | Active (final NPL) | 9.0 mi |
| Montgomery Township Housing Development Montgomery Township, New Jersey · EPA ID NJD980654164 | Active (final NPL) | 9.5 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 08604
Who supplies drinking water to ZIP 08604?
Trenton Water Works (EPA ID NJ1111001), a surface water (rivers, lakes) system serving about 217,000 people, listed by the state as serving this ZIP code.
Is there lead in Trenton, NJ tap water?
The utility’s latest 90th-percentile lead result (Jan 2026) was 6 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 Trenton, NJ water have PFAS?
None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.
Has the water system in 08604 had violations?
Health-based violations since 2016: Lead and Copper Rule, Tthm, Total Haloacetic Acids (Haa5). 1 is still listed as unresolved in EPA records.
Are there Superfund sites near 08604?
The nearest active Superfund site is 3.4 miles away. Sites within 10 miles: Historic Potteries (3.4 mi, Active (final NPL)); Higgins Disposal (9.0 mi, Active (final NPL)); Rocky Hill Municipal Well (9.0 mi, Active (final NPL)).
Is radon a problem in Mercer?
Mercer is in EPA radon zone 1 (highest potential). Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.