MONITORING · TRICHLOROETHYLENE (TCE)
2022 · Trichloroethylene (TCE) · Nitrate/Nitrite
Failure to monitor as scheduled; returned to compliance
Pennsylvania · drinking water · SDWIS through latest publish
Lca Mill Creek Division Water Quality — Allentown, Pennsylvania
PWSID PA3390080 · GroundwaterMunicipal
88 people served. No health-based SDWIS violations recorded in the past 5 years. Last cited 4 years ago.
Anomaly engine
Active signals
No SDWIS health-based or unresolved violations on the record. Contaminant detail and equity context below.
Most-cited contaminants
What This Utility Gets Cited For
- Trichloroethylene (TCE)3 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 · TRICHLOROETHYLENE (TCE)
2022 · Trichloroethylene (TCE) · Nitrate/Nitrite
Failure to monitor as scheduled; returned to compliance
MONITORING · TRICHLOROETHYLENE (TCE)
2022 · Trichloroethylene (TCE) · Nitrate/Nitrite
Failure to monitor as scheduled; returned to compliance
Equity context · ACS 2018-2022 · USEPA-clone EJ disparity
Who Drinks This Water
Allentown, Pennsylvania (Census place; block-group disparity scores aggregated by centroid containment): a service population of 125,292. Local disparity score for pm2.5 (fine particulate) sits moderately above the reference (131). Why we surface this →
21.4%
Low-income
70.1%
People of color
6.8%
Under age 5
12.5%
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.58near the national median
- OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.35below 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.61above 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.78above 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.95in 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.69above 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.87in the highest 20% nationally
- 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.82in 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.90in the highest 10% 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.61above 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.86in 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.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
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 131 | moderately above the reference |
| Ozone | 105 | near the reference |
| Nitrogen dioxide (NO₂) | 136 | moderately above the reference |
| Diesel particulate | 170 | well above the reference burden |
| Toxic releases (RSEI) | 207 | severely above the reference burden |
| Traffic proximity | 149 | moderately above the reference |
| Lead-paint risk (pre-1960 housing) | 183 | well above the reference burden |
| Superfund site proximity | 179 | well above the reference burden |
| RMP-facility proximity | 193 | well above the reference burden |
| Hazardous-waste site proximity | 131 | moderately above the reference |
| Underground storage tanks | 166 | well above the reference burden |
| NPDES wastewater proximity | 98 | near 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 2022-01-01 → 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.