Most Awendaw households are on a private well, which makes water treatment a genuine part of running the house rather than an optional upgrade.
Nobody tests it but you
A private well is not treated or monitored by any utility. Whatever is in the ground is what comes out of your taps. Alongside the things you can taste and see, it is worth testing for bacteria and nitrates every year — particularly if your well is older or shallow, or if there is agriculture nearby.
What people notice out here
Orange staining in sinks and laundry is iron. A rotten egg smell is sulphur. A slippery feel and scale on the kettle is hardness. Those are three different problems needing three different bits of equipment, which is why a proper water test comes before any recommendation rather than after.
Near the marsh and the coast
Wells closer to Bulls Bay and the creeks can show higher salinity, especially in a dry spell when the water table drops. That is worth testing for specifically rather than assuming it is just hard water.
We test first, always
Anyone offering to fit a system for an Awendaw address without testing your water is selling from a catalogue rather than solving what you actually have.