yesang

예산군 — a civic aquarium

water level today +3 cm above average

civic weather 07:14 KST · 24 Apr 2026

The insolation is gentle and evenly distributed across the valley. A thin haze drifts from the north of the reservoir and settles over the embankments without hurry. The surface of the water shows a soft cornflower color; the koi are staying near the shallows, where the sun reaches them first. It is the kind of morning that asks nothing of anyone.

Tank III

reservoir cross-section

six pressurized indicators, suspended at their civic depths.

reservoir 62.4% +0.3 pt
pollen 1.8 gentle
koi count 47 +2 overnight
library loans 311 books this week
solar gain 4.7 kWh / m²
birdsong 0.82 index
Tank IV

on the water table

The county's water table rises and falls with the seasons, but on any given Tuesday it also remembers the rain of the Tuesday before. It is not a ledger; it is a memory kept in slow sediment. The reservoir is only its most visible page.

In late April the ferns at the south embankment are still uncurling, one pale frond per day. Beneath them, along the gravel of the inlet, a thin ribbon of condensation forms on the municipal pipework at dawn and lifts by nine. We measure it because it is measurable, and we write it down because the writing is what keeps the town attentive.

— the water office,
of the county of yesang.

Tank V

the koi ledger

civic events, adrift in an aquamarine lane. scroll sideways.

The weir gate opened a half-turn to equalize pressure after Monday's rain.

Three koi were counted at the north weir this morning; two are new.

The library lent eleven books about water.

Pollen measured 1.8 at the south embankment; the ferns are resting.

Insolation peaked early. A lens-flare was observed near the old watchtower.

The reservoir rose two centimeters higher than it was on Tuesday.

A child reported a frog at the municipal fountain. We are inclined to believe them.

Birdsong index climbed to 0.82 in the orchards south of the water office.

Solar gain for the day closed at 4.7 kWh per square meter. Gentle and enough.

The condensation on the pipework lifted four minutes later than yesterday.

A fern at the inlet uncurled a full frond. We recorded it at the hour.

← scroll sideways →
Tank VI

colophon, rising

acknowledgments adrift in the column. they rise, wobble, and pop.

typography Sofia Sans · Nunito · JetBrains Mono
data sources water office · library · observatory
with thanks the koi at the north weir
palette aquamarine civic, nine anchors
ferns counted three, exactly.
built for the slow reader