Is Ladson, SC tap water safe?
The short answer
1 of the 3 utilities serving Ladson has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and South Carolina’s records: Charleston Water System.
Summerville Cpw, which serves the most people here, has 2 results above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOS at 8.1 ppt, above EPA’s new limit, which takes effect in 2029.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Ladson’s ZIP codes, from EPA’s estimates.
- Open report
Summerville Cpw
South Carolina · serves 81,750 people · about 5,000 in Ladson
2 results above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOS at 8.1 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Charleston Water System
South Carolina · serves 278,771 people · about 5,000 in Ladson
2 results above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOS at 6.5 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: soft, 54 mg/L (3.2 grains per gallon).
2 health-based violations since 2016
- Open report
Bcwsa Sangaree W/D
South Carolina · serves 95,345 people · about 2,500 in Ladson
2 results above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOS at 7.1 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Summerville Cpw’s water, which serves the most people here. Another utility’s report names what handles its own results.
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ZeroWater 10 Cup Pitcher (ZP-010)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53checked Oct. 4, 2026
Certified for: PFOS, PFOA, Lead
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS, PFOA, Lead
Express Water StreamLine Direct Connect System (USC001)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS, PFOA, Lead
Water testing near Ladson
The 3 labs South Carolina certifies closest to Ladson, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Trident Labs Services Inc.
Ladson, SC · about 1 mile
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Aquatic Analytics LLC
Summerville, SC · about 7 miles
Certified for bacteria, nitrate, minerals and other inorganics
GEL Laboratories LLC
Charleston, SC · about 13 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics, PFAS, radioactivity
Which ZIP codes are in Ladson: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: SCDES, Commercial Environmental Laboratory Mapping (CELMapp), labs certified under the Safe Drinking Water Act; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Ladson
Other towns in Dorchester County with a page of their own.
What to do next
- Read Summerville Cpw’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOSRanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water