Hillsboro S/D, NC
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Hillsboro S/D
Hillsboro S/D serves about 170 people through 67 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Alexander County, North Carolina. EPA system ID: NC0102106; phone on file: 919-653-6999. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Hillsboro S/D is 0 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2016 | 0 (not detected) |
Where this result ranks
Of the 1,925 North Carolina systems with a lead result, the median latest reading is 0 ppb; 5 are over 15 ppb right now and 75 have gone over at some point. Hillsboro S/D's reported as 0 (not detected) sits at the 33rd percentile in North Carolina and the 14th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Alexander County
7 other systems share Alexander County; 0 of them have a higher latest lead result than Hillsboro S/D. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Energy United Water Corp | 21,148 | 0 (not detected) |
| Alexander Co Wtr Dist | 13,064 | 0 (not detected) |
| Taylorsville, Town Of | 3,042 | 0 (not detected) |
| Cedar Wood Estates | 109 | 0 (not detected) |
| Five Oaks S/D | 99 | 0 (not detected) |
| Heritage Farms S/D | 84 | 0 (not detected) |
| Forest Acres Water Corporation | 79 | 0 (not detected) |
Next steps for Cary, NC
Look up your address in Hillsboro S/D's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Hillsboro S/D 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. A zero today does not rule out a jump later - the rules are tightening in 2027.