Bgwc Harmon Hill Estates (Sc4050011), SC
Exceeded the action level in the past
Latest 90th-percentile lead: 2 ppb (monitoring period 2025-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Bgwc Harmon Hill Estates (Sc4050011) at a glance
Bgwc Harmon Hill Estates (Sc4050011) serves about 126 people through 46 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Richland County, South Carolina. EPA system ID: SC4050011; phone on file: 803-699-2422. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 2 ppb from 0 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Bgwc Harmon Hill Estates (Sc4050011) is 29 ppb across 8 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2025 | 0 (not detected) |
| 2024 | 9 ppb |
| 2023 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2022 | 29 ppb over 15 |
| 2019 | 0 (not detected) |
| 2016 | 3.5 ppb |
How Bgwc Harmon Hill Estates (Sc4050011) 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. Bgwc Harmon Hill Estates (Sc4050011)'s 2 ppb sits at the 67th percentile in South Carolina and the 70th nationally (higher means more lead).
Neighbouring systems
25 other systems share Richland County; 8 of them have a higher latest lead result than Bgwc Harmon Hill Estates (Sc4050011). If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Columbia City Of (Sc4010001) | 354,068 | 5 ppb |
| Fort Jackson (Sc4010501) | 31,000 | 0 (not detected) |
| Hopkins Community Water System (4020002) | 2,200 | 0 (not detected) |
| Bgwc Raintree Acres (Sc4050015) | 828 | 0 (not detected) |
| Eastover Town Of (Sc4010002) | 700 | 5 ppb |
| Bay Capital Water Works (Sc4050031) | 647 | 0 (not detected) |
| Bgwc Charleswood S/D (4050008) | 484 | 0 (not detected) |
| Bgwc Farrowwood Estates (Sc4050012) | 377 | 0 (not detected) |
| Bgwc Stonegate (Sc4050014) | 352 | 0 (not detected) |
| Bgwc Oakridge Hunt Club (Sc4050019) | 208 | 0 (not detected) |
Next steps for Columbia, SC
Test your own tap with a certified lab first-draw sample; Columbia, 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 Bgwc Harmon Hill Estates (Sc4050011) whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 2330 ppb (copper action level 1,300 ppb).
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. Why sampled homes are the worst-case ones is in the guide to reading the number. More in what a past exceedance means today.