At the East Quay flood stair, Nell Arven puts the quay gauge book and the upstream water board beside the lower gauge sits in the shade for two hours after sunrise. The detail is easy to miss in a summary, but it determines whether a posted rule describes the place people actually use.

Nell Arven is the river gauge keeper. On this river rise visit, the work begins with a dated entry and ends with a second check from someone who did not make the first one.

The the quay gauge book and the upstream water board lists 39 readings paired with an upstream time stamp; the previous window lists 41. Marek Stone checked both against posted terms set beside signed receipts and final invoices. The number is one part of a larger handoff between the office, the people who use the service and the staff expected to maintain it.

Quay residents say the lower mark rises first. The water board says its upstream station gives the more stable warning. Residents and workers have asked the clerk to keep their accounts beside the source count rather than turn them into a single average.

Alimited trial begins under the same public measure used in the old file. The Year first, river rise window 3 file remains open for its scheduled decision. Asecond gauge will be read at the same hour on both sides of the quay.