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Nature Conservancy shows multi-evidence tailwater monitoring; some meters produce implausible readings
Summary
The Nature Conservancy presented tailwater pump measurement work using pump tests, energy use, pressure transducers and insertion mag meters; presenters highlighted alignment in timing across sensors but flagged calibration and data problems on specific pumps that yield implausible or inconsistent flows.
The Nature Conservancy presented an experiment using multiple, independent lines of evidence to estimate flows pumped off Delta islands, focusing on tailwater pump stations where a few measurement points can provide insight into larger diversion volumes.
Kirk Klausmeier (The Nature Conservancy) outlined five evidence streams: pump tests (instantaneous capacities), PG&E energy use (kilowatt-hours), pressure transducers in pipes, insertion…
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