Chatham Co-Asbury, 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.
Chatham Co-Asbury at a glance
Chatham Co-Asbury serves about 1,540 people through 616 service connections, which makes it a small 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: NC4019010; 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 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Chatham Co-Asbury is 0 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2016 | 0 (not detected) |
How Chatham Co-Asbury compares
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-Asbury's reported as 0 (not detected) sits at the 61st percentile in North Carolina and the 29th 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-Asbury. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Chatham Co-North | 23,088 | 0 (not detected) |
| 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) |
| 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) |
What to do in your house
Look up your address in Chatham Co-Asbury'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-Asbury 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. Small systems behave differently: why small systems go over more often.