City · TRI 2024

Plymouth, North Carolina Pollution

1 TRI facilities inside the city limits and 2 public water systems serving residents. In-city TRI releases rose meaningfully year over year (+22%). Toxic releases concentrations are up 23% since 2010.

FIPS 3753040 · population 3,315 · Washington County

IN-CITY TRI RELEASES · 20102024
Bar chart of annual values from 2010 to 2024, in lb. Most recent year (2024): 1.2M.1.2M'10'12'14'16'18'20'22'241.2M
Anomaly engine

Notable Signals

HEALTH-BASED · 5-YEAR WINDOW · SDWIS VIOLATION

Contaminant 5200

Phase I/II/V Inorganic Chemical Rules health-based violation cited in 2024 (contaminant 5200).

EPA SDWIS record

HEALTH-BASED · 5-YEAR WINDOW · SDWIS VIOLATION

Contaminant 5200

Phase I/II/V Inorganic Chemical Rules health-based violation cited in 2024 (contaminant 5200).

EPA SDWIS record

HEALTH-BASED · 5-YEAR WINDOW · SDWIS VIOLATION

Contaminant 5200

Phase I/II/V Inorganic Chemical Rules health-based violation cited in 2024 (contaminant 5200).

EPA SDWIS record

Pollutant pathways

Plymouth Pollutant Multi-Year Trends

HAZARDOUS AIR2020 VINTAGE

Lifetime cancer risk all pollutants (100 in a million (EPA elevated threshold))Health riskEPA-modeled added cancer cases per million residents from a lifetime of breathing local air toxics. EPA flags 100-in-a-million as elevated.

20.0 per million · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

HAZARDOUS AIR2020 VINTAGE

Formaldehyde ambient mean (0.077 µg/m³ (1-in-a-million URE))Health riskAn air toxic emitted by refineries, wood products, and combustion. EPA classifies it as a known human carcinogen — long-term inhalation raises cancer risk.

1.27 µg/m³ · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

HAZARDOUS AIR2020 VINTAGE

Benzene ambient mean (0.13 µg/m³ (1-in-a-million URE))Health riskAn air toxic from gasoline, refineries, and tobacco smoke. A known human carcinogen — chronic exposure is linked to leukemia and other blood cancers.

0.06 µg/m³ · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

TRI AIRSINCE 2010

TRI air releases (5.1 fugitive + 5.2 stack)Health riskToxic chemicals reported by industrial facilities as released into the air — fugitive leaks plus smokestack emissions. Higher pounds means more inhaled exposure for nearby residents.

1.1M lb · +25% YoY · +59% since 2010

TRI air releases (5.1 fugitive + 5.2 stack) concentrations are up 59% since 2010.

TRI WATERSINCE 2010

TRI water releases (5.3)Health riskToxic chemicals reported by industrial facilities as discharged to surface waters (rivers, lakes, the ocean). Affects fishing, recreation, and downstream drinking-water intakes.

133k lb · +0% YoY · +17% since 2010

TRI water releases (5.3) concentrations are up 17% since 2010.

TRI LANDSINCE 2010

TRI land + off-site releasesHealth riskToxic chemicals released to land on-site or transferred off-site for disposal — landfills, deep-well injection, and similar. Risks groundwater contamination over time.

625 lb · +642% YoY · since 2010

TRI land + off-site releases volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.

Top facilities · TRI 2024

Largest Emitters Inside The City

FacilityTop chemicalTotal releasesYoY
Domtar Paper CO Llc-Plymouth MillDomtar CORPMethanolHealth riskAcutely toxic if ingested or inhaled. Metabolizes to formaldehyde and formic acid, causing blindness and metabolic acidosis. (EPA)1.2M lb+22%
Drinking water · SDWIS

Water Systems Serving Plymouth

3 health-based SDWIS violations in the past 5 years across utilities serving this city; none currently unresolved.

SDWIS · 5-YR WINDOW
2

Utilities serving

SDWIS · 5-YR WINDOW
9,936

Population served

SDWIS · 5-YR WINDOW
3

Health-based · 5yr

SDWIS · 5-YR WINDOW
0

Unresolved

Water systemPWSIDPopulation servedHealth-based · 5yrStatus
Washington County Water System MunicipalNC04940256,6932Returned to compliance
Plymouth Water System MunicipalNC04940103,2431Returned to compliance

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.

Superfund / NPL sites

Federal Cleanup Sites In Plymouth

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.

Methodology →

SiteStatusFederal facilityPrimary contaminant
Georgia-Pacific Corporation Hardwood SawmillDELETEDNo
Equity context · ACS 2018-2022 · USEPA-clone EJ disparity

Who Lives In Plymouth

Plymouth, North Carolina (Census place block groups): 3,315 residents. City disparity score for pm2.5 (fine particulate) sits well below the reference (7). Why we surface this →

POPULATION SHARE
36.0%

Low-income

POPULATION SHARE
68.5%

People of color

POPULATION SHARE
5.7%

Under age 5

POPULATION SHARE
25.7%

Over age 64

NATIONAL PERCENTILE · vs all US block groups (population-weighted; ranked against the national EJScreen indicator distribution)

  • PM2.5 (fine particulate)Health riskFine inhalable particles 2.5 micrometers or smaller. They travel deep into the lungs and into the bloodstream — linked to asthma, heart disease, stroke, and premature death.3below the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.2below the national median
  • Nitrogen dioxide (NO₂)Health riskA tailpipe and combustion gas. Concentrates near busy roads and industrial sites; raises risk of airway inflammation, asthma, and lower respiratory infections in children.22below the national median
  • Diesel particulateHealth riskSoot from diesel engines (trucks, trains, ports, construction). EPA classifies it as a likely human carcinogen and a major driver of childhood asthma near freight corridors.10below the national median
  • Toxic releases (RSEI)Health riskEPA's Risk-Screening Environmental Indicators score — weights TRI chemical releases by toxicity, where they go, and how many people are nearby. Higher means greater modeled cancer and chronic-health risk.64above the national median
  • Traffic proximityHealth riskPopulation-weighted distance to high-volume roads. Living close to heavy traffic raises exposure to PM2.5, NO₂, and diesel exhaust — and the cardiovascular and asthma risks that follow.16below the national median
  • Lead-paint risk (pre-1960 housing)Health riskShare of housing built before 1960, when lead-based paint was common. Dust from deteriorating paint is the leading cause of childhood lead poisoning, which permanently impairs cognitive development.76above the national median
  • Superfund site proximityHealth riskPopulation-weighted distance to NPL Superfund sites — the most contaminated waste sites in the country. Nearby groundwater, soil, and air can carry industrial solvents, metals, and other long-lived contaminants.86in the highest 20% nationally
  • RMP-facility proximityHealth riskDistance to facilities holding chemicals at quantities large enough to require an EPA Risk Management Plan (refineries, fertilizer plants, etc.). These pose acute exposure risk during accidental releases.28below the national median
  • Hazardous-waste site proximityHealth riskDistance to RCRA hazardous-waste handlers (treatment, storage, disposal facilities). Indicates potential exposure to industrial chemicals in air, soil, and groundwater.14below the national median
  • Underground storage tanksHealth riskDensity of underground tanks (gasoline, heating oil, industrial fluids). Leaking tanks are a leading source of benzene and other volatile organic compounds in groundwater drinking-water supplies.92in the highest 10% nationally
  • NPDES wastewater proximityHealth riskDistance to permitted industrial wastewater dischargers. Closer proximity raises exposure to pollutants released into surface waters used for fishing, recreation, and downstream drinking-water intakes.46near the national median
  • Drinking-water non-complianceHealth riskEPA score for public water systems with health-based Safe Drinking Water Act violations. Higher means more residents on systems that recently exceeded safe limits for contaminants like lead, arsenic, or nitrate.76above the national median
EJ disparity scores · population-weighted across city block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)7well below the reference
Ozone34well below the reference
Nitrogen dioxide (NO₂)47well below the reference
Diesel particulate23well below the reference
Toxic releases (RSEI)152well above the reference burden
Traffic proximity39well below the reference
Lead-paint risk (pre-1960 housing)169well above the reference burden
Superfund site proximity201severely above the reference burden
RMP-facility proximity0well below the reference
Hazardous-waste site proximity0well below the reference
Underground storage tanks210severely above the reference burden
NPDES wastewater proximity109near the reference
Drinking-water non-compliance0well below the reference

Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror).

Health context

Co-Located Health Indicators

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 →

Adult asthma (current)

BRFSS 2023
13.5%
+27% vs North Carolina mean+38% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

COPD prevalence

BRFSS 2023
14.1%
+74% vs North Carolina mean+96% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

Coronary heart disease

BRFSS 2023
11.6%
+45% vs North Carolina mean+51% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

Diabetes (diagnosed)

BRFSS 2023
23.5%
+70% vs North Carolina mean+71% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

Frequent mental distress

BRFSS 2023
19.7%
+29% vs North Carolina mean+34% vs US mean

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 North Carolina 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.