Contaminant 8000
Unresolved Revised Total Coliform Rule violation cited in 2023 (contaminant 8000).
Texas · drinking water · SDWIS through latest publish
Letulle Estates Chinquapin 1 Water Quality — Bay City, Texas
PWSID TX1610005 · GroundwaterPrivate
150 people served. No health-based SDWIS violations recorded in the past 5 years. 6 remain unresolved. Last cited 3 years ago.
Anomaly engine
Active signals
Beryllium
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2021 (beryllium).
Beryllium
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2021 (beryllium).
Cyanide
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2021 (cyanide).
Most-cited contaminants
What This Utility Gets Cited For
- Contaminant 80004 citations
- Beryllium3 citations
- Cyanide3 citations
Violation history
What's On The SDWIS Record
Health-based violations exceed an MCL or treatment-technique standard. Monitoring violations are reporting failures with no measured exceedance — they tell you the system isn't fully transparent, not that the water is unsafe today.
MONITORING · CONTAMINANT 8000
2023 · Contaminant 8000 · Revised Total Coliform Rule
Monitoring failure; returned to compliance
MONITORING · CONTAMINANT 8000
2023 · Contaminant 8000 · Revised Total Coliform Rule
Monitoring failure; returned to compliance
MONITORING · CONTAMINANT 8000
2023 · Contaminant 8000 · Revised Total Coliform Rule
Monitoring failure
MONITORING · CONTAMINANT 8000
2023 · Contaminant 8000 · Revised Total Coliform Rule
Monitoring failure; returned to compliance
MONITORING · BERYLLIUM
2021 · Beryllium · Phase I/II/V Inorganic Chemical Rules
Failure to monitor as scheduled
MONITORING · BERYLLIUM
2021 · Beryllium · Phase I/II/V Inorganic Chemical Rules
Failure to monitor as scheduled
MONITORING · BERYLLIUM
2021 · Beryllium · Phase I/II/V Inorganic Chemical Rules
Failure to monitor as scheduled; returned to compliance
MONITORING · CYANIDE
2021 · Cyanide · Phase I/II/V Inorganic Chemical Rules
Failure to monitor as scheduled
MONITORING · CYANIDE
2021 · Cyanide · Phase I/II/V Inorganic Chemical Rules
Failure to monitor as scheduled
MONITORING · CYANIDE
2021 · Cyanide · Phase I/II/V Inorganic Chemical Rules
Failure to monitor as scheduled
Equity context · ACS 2018-2022 · USEPA-clone EJ disparity
Who Drinks This Water
Bay City, Texas (Census place; block-group disparity scores aggregated by centroid containment): a service population of 17,869. Local disparity score for pm2.5 (fine particulate) sits well above the reference burden (164). Why we surface this →
28.6%
Low-income
74.7%
People of color
7.3%
Under age 5
13.9%
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.68above the national median
- OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.65above 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.47near 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.62above 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.35below 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.21below 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.59near 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.56near 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.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.23below 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.80in the highest 20% 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.35below 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
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 164 | well above the reference burden |
| Ozone | 21 | well below the reference |
| Nitrogen dioxide (NO₂) | 110 | moderately above the reference |
| Diesel particulate | 147 | moderately above the reference |
| Toxic releases (RSEI) | 84 | below the reference |
| Traffic proximity | 55 | below the reference |
| Lead-paint risk (pre-1960 housing) | 95 | near the reference |
| Superfund site proximity | 0 | well below the reference |
| RMP-facility proximity | 28 | well below the reference |
| Hazardous-waste site proximity | 57 | below the reference |
| Underground storage tanks | 170 | well above the reference burden |
| NPDES wastewater proximity | 82 | below the reference |
| 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).
Source. EPA Safe Drinking Water Information System · retrieved 2026-05-07. Reporting period 2021-01-01 → 2026-05-07.
What this is not. SDWIS records compliance against federal MCLs — not a direct readout of tap-water concentrations. Active health-based violations are not the same as a current crisis; we link to the EPA record so you can verify return-to-compliance status before forming a conclusion.