Source & Product
Where this water comes from
Our source lies in Yulchon-myeon, Yeosu, Jeollanam-do, inside a protected watershed with no industrial facilities. Rainwater seeps through volcanic bedrock to roughly 400 metres below the surface — nature works slowly here.
About the source
Yeosu's annual rainfall of 1,503mm exceeds the national average, feeding a stable volcanic aquifer with an 11.3% recharge rate. We draw from a fully protected zone with no industrial activity within a 5km radius.
Water quality, at a glance
| pH | 7.2 – 8.0 | Slightly alkaline, smooth on the palate |
|---|---|---|
| Turbidity | 0.09 NTU | Standard: 1 NTU or less |
| Nitrate nitrogen | 0.2 – 0.8 mg/L | Standard: 10 mg/L or less |
| Chloride ion | 4.5 – 5.8 mg/L | Standard: 250 mg/L or less |
| Uranium | 0.0003 – 0.0016 mg/L | Standard: 0.03 mg/L or less, trace levels |
| Microbiological items (48 total) | Not detected | Pass |
* Results from a Eurofins Korea test report on samples collected in January 2026. The water passed all 48 items of Korea's drinking water standards.
From source to bottle in 4 steps
- 01
Natural filtration
Rainwater seeps through layers of volcanic basalt to a depth of roughly 400m, naturally filtered over decades.
- 02
Deep-well intake
A closed pipe system draws water directly from wells 106–110m deep, with no exposure to surface contaminants.
- 03
Minimal processing
We apply only the lightest filtration and sterilisation — never disturbing the mineral balance.
- 04
Bottled at source
Filling happens on-site at the Yeosu source, preserving the water at its freshest.
Suamsu, the finished bottle
A premium bottle that carries the water exactly as it rises from the volcanic aquifer in Yeosu. A restrained design reflects the landscape and purity of the source — telling the Suamsu story in every bottle.
Catchment area & water stability
The catchment surrounding the source is an isolated watershed cut off from outside pollution, allowing rainwater to recharge steadily and keep both quantity and quality stable.
- Recharge rate
- 11.3%
- Well depth
- PW-1: 110m · PW-2: 106m
- Pollution sources
- None within a 5km radius
- Water testing
- All 48 items passed (Eurofins)