Mountain Creek Water System, NC
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). 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
Mountain Creek Water System serves about 55 people through 22 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Granville County, North Carolina. EPA system ID: NC0239121; phone on file: 919-653-6999. They can tell you what your service line is made of and whether they pay to replace it.
Mountain Creek Water System's lead record
That is down 6.4 ppb from 6.4 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Mountain Creek Water System is 6.4 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 6.4 ppb |
| 2022 | 0 (not detected) |
| 2016 | 4.8 ppb |
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. Mountain Creek Water System's reported as 0 (not detected) sits at the 7th percentile in North Carolina and the 4th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Granville County
7 other systems share Granville County; 2 of them have a higher latest lead result than Mountain Creek Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| South Granville Wtr&Sewer Authority | 18,555 | 3 ppb |
| Oxford, City Of | 8,972 | 0 (not detected) |
| Stovall, Town Of | 450 | 0 (not detected) |
| Granville Family Park | 232 | 0 (not detected) |
| Lyon`S Mhp | 119 | 0.21 ppb |
| Ser J`S Country Living Mhp | 65 | 0 (not detected) |
| Granville Pines Mhp | 53 | 0 (not detected) |
Next steps for Cary, NC
Look up your address in Mountain Creek Water System'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 Mountain Creek Water System whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1630 ppb (copper action level 1,300 ppb).
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. Small systems behave differently: why small systems go over more often.