Muuraislampi as the intended water source
The lampi is the intended source because drilling a well is expensive; potable use remains conditional on laboratory results and suitable treatment.
THE PLAN - WATER
The source is part of the story. Potable-water claims will only follow actual laboratory data and a commissioned treatment chain.
Source water.
Direct supply to the site.
Decide from measured water quality.
Only after commissioning.
The lampi is the intended source because drilling a well is expensive; potable use remains conditional on laboratory results and suitable treatment.
Replace manual water handling with a direct pump and supply route to the containers.
Test the lampi water before deciding the potable-water treatment chain.
The final potable-water design depends on what the laboratory results actually show.
Depends on W03If the laboratory results support it, install the intended reverse-osmosis and UV treatment system.
Depends on W04Verify the complete water path and write the guest-facing operating guidance.
Depends on W05THE BOUNDARY
The interesting part is understanding where the water comes from. The safety requirement stays boring, tested and non-negotiable.