Muni

Locations

Charles River map

Official advisory coverage is incomplete

These sources cannot establish that advisories are absent or that water contact is safe. Check current notices from local health authorities.

No active advisory or program override is retained here; coverage remains incomplete.

Massachusetts guidance and local contacts ↗
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Charles River

Lower Charles

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Official advisory coverage is incomplete

These sources cannot establish that advisories are absent or that water contact is safe. Check current notices from local health authorities.

No active advisory or program override is retained here; coverage remains incomplete.

Massachusetts guidance and local contacts ↗
Eastern time

What do the available measurements tell us?

One local buoy, an upstream gauge, dated samples and selected public notices. Each result keeps its location, date and limitations. There is no river-wide average or health score.

Continuous history: 30 days · Laboratory samples: past year

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