611 Harmon Llc (Sc4060012), SC
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 15 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. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
About 611 Harmon Llc (Sc4060012)
611 Harmon Llc (Sc4060012) serves about 24 people through 21 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: SC4060012; phone on file: 803-429-2635. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
611 Harmon Llc (Sc4060012)'s lead record
That is up 2 ppb from 13 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for 611 Harmon Llc (Sc4060012) is 15 ppb across 3 monitoring periods, none of them over 15 ppb (2 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 15 ppb over 10 |
| 2022 | 13 ppb over 10 |
| 2019 | 8 ppb |
Where this result ranks
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. 611 Harmon Llc (Sc4060012)'s 15 ppb sits at the 99th percentile in South Carolina and the 99th nationally (higher means more lead).
Neighbouring systems
25 other systems share Richland County; 0 of them have a higher latest lead result than 611 Harmon Llc (Sc4060012). 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) |
Your move
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 611 Harmon Llc (Sc4060012) 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. What a 90th-percentile result does and does not tell you: how to read a lead result. This system is in the band the 2027 10 ppb rule changes.