Chatham Co-North, 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 Chatham Co-North
Chatham Co-North serves about 23,088 people through 9,235 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Chatham County, North Carolina. EPA system ID: NC0319126; phone on file: 919-777-1800. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Chatham Co-North is 0 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
Against other North Carolina systems
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. Chatham Co-North's reported as 0 (not detected) sits at the 76th percentile in North Carolina and the 39th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Chatham County
19 other systems share Chatham County; 2 of them have a higher latest lead result than Chatham Co-North. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Siler City, Town Of | 8,520 | 0 (not detected) |
| Pittsboro, Town Of | 6,708 | 0 (not detected) |
| Chatham Co-Sw Chatham | 2,470 | 0 (not detected) |
| Chapel Ridge S/D | 2,098 | 0 (not detected) |
| Chatham Co-Asbury | 1,540 | 0 (not detected) |
| Goldston-Gulf Sanitary Dist | 1,187 | 0 (not detected) |
| Beechwood Cove/Polks Landing | 406 | 0 (not detected) |
| Chatham S/D | 365 | 0 (not detected) |
| Colvard Farms S/D | 365 | 1.9 ppb |
| Cole Park Plaza | 306 | 0 (not detected) |
Next steps for Sanford, NC
Look up your address in Chatham Co-North'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 Chatham Co-North 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.