Woburn, Massachusetts: Wells G and H contamination

The allegation

Industrial solvents contaminated municipal wells G and H. Families alleged contaminated water contributed to childhood leukemia; pollution is documented, but causation for each case was not established.

Timeline

Wells closed in 1979; EPA listed the site as Superfund in 1982. Families sued in 1982; part of a 1986 verdict was set aside and claims largely settled.

What the record establishes

EPA sampling identifies TCE, PCE, and other chemicals. State health investigation evaluated the leukemia cluster; court records track procedural outcomes.

Counterevidence and alternative explanations

Leukemia is rare, exposures were not uniform, and chance or other exposures can explain some cluster patterns. Contaminated water is plausible but not proof of each case.

Uncertainty and limits

Small case numbers, water-use histories, and timing limit statistical power. Settlements are not final causation findings.

Calibrated skeptical verdict

Contamination and a serious investigation are established. It is inaccurate to say a court conclusively proved every alleged cancer link.

What could change the assessment

Industrial records, household water histories, biomarkers, and independent epidemiology could refine causation; final court findings on conduct would matter.

Annotated authoritative sources and source limits

1. EPA Wells G & HPrimary sampling and remediation record.
2. Massachusetts DPH Woburn studyPublic-health cluster analysis and limits.
3. Fowle v. McNeilAppellate litigation history and causation limits.