Folly Beach City Of (1010005), SC
Lead detected, under the action levels
Latest 90th-percentile lead: 0.93 ppb (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
Folly Beach City Of (1010005) serves about 5,086 people through 2,141 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Charleston County, South Carolina. EPA system ID: SC1010005; phone on file: 843-998-2002. They can tell you what your service line is made of and whether they pay to replace it.
Folly Beach City Of (1010005)'s lead record
Against the period ending 2022 (0.63 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Folly Beach City Of (1010005) is 1.1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.93 ppb |
| 2022 | 0.63 ppb |
| 2019 | 0.48 ppb |
| 2016 | 1.1 ppb |
How Folly Beach City Of (1010005) compares
Of the 553 South Carolina systems with a lead result, the median latest reading is 0.73 ppb; 3 are over 15 ppb right now and 47 have gone over at some point. Folly Beach City Of (1010005)'s 0.93 ppb sits at the 54th percentile in South Carolina and the 50th nationally (higher means more lead).
Neighbouring systems
14 other systems share Charleston County; 8 of them have a higher latest lead result than Folly Beach City Of (1010005). If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Charleston Water System (Sc1010001) | 278,771 | 3.5 ppb |
| Mt Pleasant Waterworks (Sc1010002) | 91,500 | 1 ppb |
| St John'S Water (Sc1020002) | 22,592 | 2 ppb |
| Kiawah Island Utility (Sc1010008) | 9,550 | 1.1 ppb |
| Isle Of Palms W/S Comm (Sc1010004) | 9,530 | 0.49 ppb |
| Seabrook Island Town Of (1010009) | 5,939 | 4 ppb |
| Sullivans Island Town Of (1010003) | 2,521 | 0.59 ppb |
| Lincolnville Town Of (Sc1010007) | 1,980 | 0.14 ppb |
| Awendaw Town Of (Sc1010504) | 713 | 1.6 ppb |
| Burbage Mhp (Sc1060063) | 171 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Folly Beach, SC may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Folly Beach City Of (1010005) whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. The action level is dropping - the 10 ppb rule from 2027.