OpenMuniAlpha

Locations

Charles River map

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Datasets

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Eastern time

No measurements for this location.

Changes in period

Repeated publications are grouped only when their source identity supports it. Samples with unresolved identity remain separate.

All source publications, including repeated representations and quality-control samples. Publication counts are not independent sample counts.

BWSC and MassDEP coverage incomplete.

Latest observed states · source issuance times unavailable

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No records in checked sources for this selection.

LocationSourceStatusDetails
Cleanup documents

Checked means Muni contacted the source. Publisher changed means the source reported an update. Observation history describes when the water was measured; these times can differ. Retained record counts include source publications and do not count independent samples.

SourceRecords retainedCheck scheduleFreshness / collectionObservation historyChecked / publisher changedData
Methodology

Source evidence