Contaminant 0200
Unresolved Surface Water Treatment Rule violation cited in 2025 (contaminant 0200).
6 TRI facilities inside the city limits and 1 public water system serving residents. In-city TRI releases rose sharply year over year (+36%). Toxic releases concentrations are up 87% since 2010.
FIPS 3465790 · population 45,136 · Middlesex County
Unresolved Surface Water Treatment Rule violation cited in 2025 (contaminant 0200).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (contaminant 5000).
Total TRI releases at Sayreville have risen 87% since 2010 (through 2024).
PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) concentrations have more than halved since 2010.
PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour)) concentrations have more than halved since 2010.
Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour)) concentrations have fallen 23% since 2010.
NO₂ annual mean (NAAQS 53 ppb (annual)) concentrations have more than halved since 2010.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
TRI air releases (5.1 fugitive + 5.2 stack) concentrations are roughly unchanged from 2010.
TRI water releases (5.3) volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
TRI land + off-site releases concentrations are up 91% since 2010.
Greenhouse gases (GHGRP large emitters, through 2023) concentrations are up 33% since 2010.
| Facility | Top chemical | Total releases | YoY |
|---|---|---|---|
| Ashland Specialty Ingredients (Parlin Plant)Ashland LLC | Nitrate compounds (water dissociable; reportable only when in aqueous solution)Health riskDrinking-water nitrate causes methemoglobinemia ('blue-baby syndrome') in infants; EPA MCL is 10 mg/L as N. (EPA) | 878k lb | +37% |
| Cmc Steel New JerseyCommercial Metals Co | Zinc compoundsHealth riskGenerally low acute toxicity. Chronic high-dose exposure disrupts copper absorption and immune function. (ATSDR) | 11k lb | +3% |
| Hd Microsystems LLC | N-Methyl-2-pyrrolidoneHealth riskReproductive and developmental toxicant; absorbed through skin. (EPA) | 341 lb | +46% |
| Ist (Usa) Corp | N-Methyl-2-pyrrolidoneHealth riskReproductive and developmental toxicant; absorbed through skin. (EPA) | 289 lb | +1% |
| Chemours Parlin FacilityThe Chemours Co | N-Methyl-2-pyrrolidoneHealth riskReproductive and developmental toxicant; absorbed through skin. (EPA) | 256 lb | -76% |
| Canfield Technologies LLCAim Metals & Alloys USA INC | LeadHealth riskNeurotoxin. Even low childhood exposure impairs cognitive development; chronic adult exposure damages kidneys and the cardiovascular system. (EPA, ATSDR) | 13 lb | +10% |
8 unresolved violations on the SDWIS record across utilities serving this city.
Utilities serving
Population served
Health-based · 5yr
Unresolved
| Water system | PWSID | Population served | Health-based · 5yr | Status |
|---|---|---|---|---|
| Sayreville W Dept Municipal | NJ1219001 | 45,345 | 0 | UNRESOLVED |
A public water systemis the regulated entity, not the city. EPA's SDWIS definition covers anything serving 25+ people for 60+ days a year or with 15+ service connections — that includes municipal utilities (City of Stockton), water districts, mobile home parks operating their own wells, schools, and small private subdivisions. Each system is independently monitored. Some systems serve multiple cities; some cities are served by many systems.
Sites on EPA's Superfund National Priorities List, plus deleted sites whose cleanup objectives EPA has finalized. Federal-facility sites (defense, DOE, etc.) are flagged separately. Each link routes to a per-site page.
| Site | Status | Federal facility | Primary contaminant |
|---|---|---|---|
| Atlantic Resources | NPL FINAL | No | 1,1,2,2-Tetrachloroethane |
| Horseshoe Road | NPL FINAL | No | 1,1,2,2-Tetrachloroethane |
| Raritan Bay Slag | NPL FINAL | No | ArsenicHealth riskIARC Group 1 carcinogen via inhalation and ingestion. EPA MCL 10 µg/L; chronic exposure causes skin, lung, bladder cancer and cardiovascular disease. (IARC, EPA, ATSDR) |
| Sayreville Landfill | DELETED | No | ArsenicHealth riskIARC Group 1 carcinogen via inhalation and ingestion. EPA MCL 10 µg/L; chronic exposure causes skin, lung, bladder cancer and cardiovascular disease. (IARC, EPA, ATSDR) |
Sayreville, New Jersey (Census place block groups): 45,136 residents. City disparity score for pm2.5 (fine particulate) sits well below the reference (36). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 36 | well below the reference |
| Ozone | 69 | below the reference |
| Nitrogen dioxide (NO₂) | 65 | below the reference |
| Diesel particulate | 97 | near the reference |
| Toxic releases (RSEI) | 98 | near the reference |
| Traffic proximity | 78 | below the reference |
| Lead-paint risk (pre-1960 housing) | 52 | below the reference |
| Superfund site proximity | 118 | moderately above the reference |
| RMP-facility proximity | 94 | near the reference |
| Hazardous-waste site proximity | 97 | near the reference |
| Underground storage tanks | 71 | below the reference |
| NPDES wastewater proximity | 93 | near the reference |
| Drinking-water non-compliance | 95 | near the reference |
Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror).
Modeled adult-prevalence estimates published by CDC PLACES, paired with this city's pollution and demographic context. Comparisons are ecological, not causal — pollution and disease prevalence covary at the area level, but the data does not attribute any individual's diagnosis to local exposure. How this section works →
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
PLACES uses BRFSS-modeled small-area estimates, not individual records. Crude prevalence shown above is the local rate as published; comparators are age-adjusted vs the New Jersey mean and the US mean — both population-weighted across counties — so geographies with different age structures stay apples-to-apples. Sources: CDC PLACES · 2025 release · BRFSS 2022-2023.
Sources.