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Gathering the latest records.
Turn local observations into a coordinated investigation.
01 · The stream
Reports from people who notice, and readings from trained monitors, narrow the stretches of stream where a change could have come in. A stretch that no longer fits the evidence is ruled out under stated assumptions, never declared fine. Those that still fit stay worth checking.
Station by station · every assumption written down
02 · People and animals
Footpaths and swimming spots, grazing and drinking points, the habitats downstream: each layer is recorded with its source, so attention goes first to where people and animals come into contact with the water.
03 · The people who act
An expert reviews the evidence, then it goes to the environmental, public-health and wildlife agencies who can act, each record traceable to the observation or reading behind it, in the formats they already use.
Signed PDFGeoJSONCSV readingsFHIR R4 for health systems
Upstream diagnoses no one and makes no claim about health. It helps the right people look in the right place, sooner.
How an investigation unfoldsFollow Mill Brook from the first observation to a reviewable next step, computed by the real engine. See what happens when evidence is useful, uncertain, or revised.
Explore the investigationA report can document a change, start a local case, and help organize the next useful evidence.
A photo does not identify a pollutant or establish water safety. Measurements, appropriate assumptions, and expert review are needed for interpretation.
