William`S Mhp, 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.
Who runs the water here
William`S Mhp serves about 86 people through 34 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Rockingham County, North Carolina. EPA system ID: NC0279124. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2016 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for William`S Mhp is 0 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 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. William`S Mhp's reported as 0 (not detected) sits at the 17th percentile in North Carolina and the 8th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Rockingham County
33 other systems share Rockingham County; 5 of them have a higher latest lead result than William`S Mhp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Eden, City Of | 15,500 | 0 (not detected) |
| Reidsville, City Of | 15,000 | 0 (not detected) |
| Dan River Water Inc | 12,573 | 0 (not detected) |
| Mayodan, Town Of | 2,493 | 0 (not detected) |
| Madison, Town Of | 2,116 | 0 (not detected) |
| Rockingham County 158 Corridor | 1,500 | 0 (not detected) |
| Stoneville, Town Of | 1,308 | 0 (not detected) |
| Rockingham Co - 220 Corridor | 1,200 | 0 (not detected) |
| River Run S/D | 360 | 0 (not detected) |
| Pleasant Ridge Mhp | 269 | 0 (not detected) |
Your move
Look up your address in William`S Mhp'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 William`S Mhp 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. Why sampled homes are the worst-case ones is in the guide to reading the number. A zero today does not rule out a jump later - the rules are tightening in 2027.