Contaminant 7000
Unresolved Phase I/II/V Synthetic Organic Chemical Rules violation cited in 2025 (contaminant 7000).
City · TRI 2024
Freeport, Texas Pollution
13 TRI facilities inside the city limits and 20 public water systems serving residents. In-city TRI releases fell meaningfully year over year (-30%). Toxic releases concentrations are up 79% since 2010.
FIPS 4827420 · population 10,738 · Brazoria County
Anomaly engine
Notable Signals
Total Trihalomethanes (TTHM)
Unresolved Total Trihalomethanes Rule violation cited in 2024 (total trihalomethanes (tthm)).
Total Trihalomethanes (TTHM)
Unresolved Total Trihalomethanes Rule violation cited in 2025 (total trihalomethanes (tthm)).
Total Trihalomethanes (TTHM)
Unresolved Total Trihalomethanes Rule violation cited in 2025 (total trihalomethanes (tthm)).
Showing the 4 most editorially weighted signals out of 30. Lower-severity signals fold into the chemical breakdown and history charts below.
Pollutant pathways
Freeport Pollutant Multi-Year Trends
PM2.5 annual mean (NAAQS 9 µg/m³ (annual))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.
PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) concentrations have fallen 22% since 2010.
PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour))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.
PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour)) concentrations have fallen 23% since 2010.
Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour))Health riskGround-level ozone (smog) forms when vehicle and industrial emissions react in sunlight. Inflames the airways, triggers asthma attacks, and worsens heart and lung disease.
Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour)) concentrations have fallen 10% since 2010.
NO₂ annual mean (NAAQS 53 ppb (annual))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.
NO₂ annual mean (NAAQS 53 ppb (annual)) concentrations are roughly unchanged from 2011.
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.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
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.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
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.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
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.
TRI air releases (5.1 fugitive + 5.2 stack) concentrations have more than doubled since 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.
TRI water releases (5.3) concentrations have more than halved since 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.
TRI land + off-site releases concentrations have more than doubled since 2010.
Greenhouse gases (GHGRP large emitters, through 2023)Health riskGreenhouse gases reported by large industrial emitters under EPA's GHGRP, in metric tons of CO₂ equivalent. Drives climate warming and the heat-related health effects that follow.
Greenhouse gases (GHGRP large emitters, through 2023) concentrations are roughly unchanged from 2010.
Top facilities · TRI 2024
Largest Emitters Inside The City
| Facility | Top chemical | Total releases | YoY |
|---|---|---|---|
| Meglobal Oyster CreekMeglobal Americas INC | Ethylene glycolHealth riskAcutely toxic if ingested. Metabolizes to compounds that cause kidney failure. (EPA) | 171k lb | -58% |
| Riviana Foods INC.Riviana Foods INC | Sulfuryl fluorideHealth riskAcutely toxic by inhalation; potent greenhouse gas. (EPA) | 86k lb | +2% |
| Braskem America INC. Oyster Creek PlantBraskem America INC | PropyleneHealth riskSimple asphyxiant; low direct toxicity at typical exposure levels. (NIOSH) | 81k lb | +26% |
| Shintech INCShintech INC | Vinyl chlorideHealth riskIARC Group 1 carcinogen — angiosarcoma of the liver. Final TCE/PCE biodegradation product; commonly found in groundwater plumes. EPA MCL 2 µg/L. (IARC, EPA) | 33k lb | +9% |
| Air Liquide Freeport Hpu PlantAmerican Air Liquide Holdings INC | Zinc compoundsHealth riskGenerally low acute toxicity. Chronic high-dose exposure disrupts copper absorption and immune function. (ATSDR) | 22k lb | +2571% |
| Phillips 66 CO Freeport I TerminalPhillips 66 Co | BenzeneHealth riskIARC Group 1 carcinogen. Long-term inhalation causes leukemia and bone-marrow disorders. (IARC, EPA) | 21k lb | +152% |
| Championx-FreeportChampionx CORP | Propylene oxideHealth riskSimple asphyxiant; low direct toxicity at typical exposure levels. (NIOSH) | 20k lb | -48% |
| Vencorex US INCVencorex Holding | 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) | 12k lb | +4% |
| Si Group INCSi Group INC | MethanolHealth riskAcutely toxic if ingested or inhaled. Metabolizes to formaldehyde and formic acid, causing blindness and metabolic acidosis. (EPA) | 8k lb | +6% |
| Basf Corp - Harbor Term InalBasf CORP | AmmoniaHealth riskSevere respiratory and eye irritant; high concentrations cause chemical burns to lung tissue. (EPA) | 1k lb | -19% |
Drinking water · SDWIS
Water Systems Serving Freeport
107 unresolved violations on the SDWIS record across utilities serving this city.
20
Utilities serving
14,520
Population served
197
Health-based · 5yr
107
Unresolved
| Water system | PWSID | Population served | Health-based · 5yr | Status |
|---|---|---|---|---|
| Turtle Cove Lot Owners Assoc Private | TX0200062 | 141 | 80 | UNRESOLVED |
| Commodore Cove Improvement District Municipal | TX0200033 | 356 | 70 | UNRESOLVED |
| Treasure Island Mud Municipal | TX0200038 | 951 | 28 | UNRESOLVED |
| Shady Creek Section 3 Water System Private | TX0200148 | 105 | 1 | UNRESOLVED |
| Marlin Marina Water System Private | TX0200461 | 80 | 1 | UNRESOLVED |
| Wood Oaks Water Works Private | TX0200444 | 66 | 1 | UNRESOLVED |
| City Of Freeport Slaughter Road Municipal | TX0200125 | 40 | 1 | UNRESOLVED |
| Royal Ridge Private | TX0200127 | 231 | 4 | Returned to compliance |
| Jones Creek Terrace Private | TX0200041 | 951 | 1 | Returned to compliance |
| Anglecrest Subdivision Private | TX0200361 | 234 | 1 | Returned to compliance |
| River Oaks Private | TX0200139 | 141 | 1 | Returned to compliance |
| Homeland Subdivision Private | TX0200040 | 132 | 1 | Returned to compliance |
| Riverwood Subdivision Water System Private | TX0200520 | 123 | 1 | Returned to compliance |
| Oyster Creek Estates Private | TX0200607 | 81 | 1 | Returned to compliance |
| Choctaw Subdivision Private | TX0200128 | 78 | 1 | Returned to compliance |
| Blacks Ferry Water Private | TX0200017 | 72 | 1 | Returned to compliance |
| Jones Creekwood Private | TX0200042 | 48 | 1 | Returned to compliance |
| Bernard River Oaks Private | TX0200043 | 48 | 1 | Returned to compliance |
| River Run Water System Private | TX0200575 | 48 | 1 | Returned to compliance |
| City Of Freeport Municipal | TX0200005 | 10,594 | 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.
Superfund / NPL sites
Federal Cleanup Sites In Freeport
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 |
|---|---|---|---|
| Gulfco Marine Maintenance | NPL FINAL | No | 1,1,1-TrichloroethaneHealth riskMethyl chloroform. CNS depressant; ozone-depleting substance phased out under Montreal Protocol. EPA MCL 200 µg/L. (EPA, ATSDR) |
Equity context · ACS 2018-2022 · USEPA-clone EJ disparity
Who Lives In Freeport
Freeport, Texas (Census place block groups): 10,738 residents. City disparity score for pm2.5 (fine particulate) sits well above the reference burden (185). Why we surface this →
18.1%
Low-income
75.5%
People of color
11.7%
Under age 5
12.1%
Over age 64
- 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.71above the national median
- OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.69above 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.40near 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.34below 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.100in the highest 5% nationally
- 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.26below 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.71above 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.66above the national median
- 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.100in the highest 5% nationally
- 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.88in the highest 20% nationally
- 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.73above the national median
- 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.93in the highest 10% nationally
- 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
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 185 | well above the reference burden |
| Ozone | 28 | well below the reference |
| Nitrogen dioxide (NO₂) | 102 | near the reference |
| Diesel particulate | 91 | near the reference |
| Toxic releases (RSEI) | 255 | severely above the reference burden |
| Traffic proximity | 71 | below the reference |
| Lead-paint risk (pre-1960 housing) | 160 | well above the reference burden |
| Superfund site proximity | 168 | well above the reference burden |
| RMP-facility proximity | 255 | severely above the reference burden |
| Hazardous-waste site proximity | 221 | severely above the reference burden |
| Underground storage tanks | 170 | well above the reference burden |
| NPDES wastewater proximity | 239 | severely above the reference burden |
| Drinking-water non-compliance | 0 | well 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)
9.7%
CDC PLACES · 2025 release · BRFSS 2022-2023
COPD prevalence
6.7%
CDC PLACES · 2025 release · BRFSS 2022-2023
Coronary heart disease
6.4%
CDC PLACES · 2025 release · BRFSS 2022-2023
Diabetes (diagnosed)
16.0%
CDC PLACES · 2025 release · BRFSS 2022-2023
Frequent mental distress
18.7%
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 Texas 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.
- EPA Toxics Release Inventory · retrieved 2026-05-07.
- EPA Safe Drinking Water Information System · retrieved 2026-05-07.