Niri Flint opens settling cards, filter changes and household distribution notes at the salt settling chamber at West Reservoir. Before anyone changes a mark, the crew checks two filters share one replacement card. The deep rest period sets the pace of the work.

The page holds 17 filter runs with a source and destination mark. Niri Flint reads the preceding count, 16, before the next line is entered. A number without a date would not tell the next crew what changed.

The chamber records a combined run. The distribution crew needs the filter number before sending water onward. Here the difference is visible between the posted rule and the route, service or shift just beyond the door.

The clerk closes this route file and gives the next window a fresh walk. The board closed this docket after it approved a limited bypass with a named maintenance turn. The next window starts with a fresh record.

The shift closes with the source page attached to the board. The next file uses a new date and scope.