Sixteen towns across two metros — and a different utility behind almost every one.
Quick answer: We install water treatment across the Charleston Lowcountry and York County. Which system is right depends on which utility serves you, because these are genuinely different waters — Charleston is chloraminated surface water with PFAS above the coming federal limit, Summerville drinks a different lake, Mount Pleasant runs its own reverse-osmosis wells, and York County is softer than all of them. Call (843) 718-8177.
There is no single answer to “what filter do I need” across this territory, because there is no single water. Six different utilities supply the towns below, from four different sources, using two different disinfectants.
Each town page names its own utility and publishes that utility’s own figures — hardness, source, disinfectant, PFAS results and disinfection byproducts — with a link to where each number came from.
| Town | Utility | Published hardness |
|---|---|---|
| Charleston | Charleston Water System | 58.4 ppm · 3.4 gr |
| Daniel Island | Charleston Water System | 58.4 ppm · 3.4 gr |
| North Charleston | Charleston Water System | 58.4 ppm · 3.4 gr |
| West Ashley | Charleston Water System | 58.4 ppm · 3.4 gr |
| Mount Pleasant | Mount Pleasant Waterworks | 40–44 ppm · 2.3–2.6 gr |
| Summerville | Summerville CPW | 23 ppm · 1.35 gr |
| Rock Hill | Rock Hill Utilities | 35 ppm · 2.0 gr |
| Fort Mill | Town of Fort Mill (Rock Hill supply) | 18–35 ppm · ~2 gr |
| Indian Land | Lancaster County Water & Sewer District | 26 ppm · 1.52 gr |
Hardness figures are the utilities’ own published numbers. USGS classifies anything under 60 mg/L as soft, so every supply in this table is soft — which is why we rarely recommend a softener on city water in either market.
Yes — both metros, as Southeastern Renovation, using licensed plumbing subcontractors who pull their own permits.
Southeastern Renovation is a licensed South Carolina general contractor, CLG.127339. South Carolina law names water-conditioning equipment inside the plumbing subclassification, so the tie-in is plumbing work by statute.
It depends entirely on what you mean by worst, and no town here has a health-based violation on EPA’s record.
For PFAS, the Charleston-metro surface systems are the concern — every one tested above the PFOS limit. For disinfection byproducts, Rock Hill and the City of York have the least headroom. For hardness, nowhere: every supply in both markets is soft.
Call us — we cover more of both metros than has a page here, and we only build a town page where we can source that utility’s own published figures.
We would rather leave a town off than publish a number we cannot stand behind.