Adams 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
Adams Mhp serves about 80 people through 32 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Johnston County, North Carolina. EPA system ID: NC0351120. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
The highest 90th-percentile result EPA holds for Adams Mhp is 0 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
How Adams Mhp 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. Adams Mhp's reported as 0 (not detected) sits at the 15th percentile in North Carolina and the 7th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
46 other systems share Johnston County; 7 of them have a higher latest lead result than Adams Mhp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Johnston Co-West | 99,027 | 0 (not detected) |
| Clayton, Town Of | 30,876 | 0 (not detected) |
| Johnston Co-East | 25,212 | 0 (not detected) |
| Smithfield, Town Of | 12,900 | 0 (not detected) |
| Flowers Plantation | 12,809 | 0 (not detected) |
| Selma, Town Of | 6,190 | 0 (not detected) |
| Benson, Town Of | 4,802 | 0 (not detected) |
| Town Of Clayton - North | 4,703 | 0 (not detected) |
| Pine Level, Town Of | 2,413 | 1.4 ppb |
| Four Oaks, Town Of | 2,302 | 3 ppb |
Your move
Look up your address in Adams 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 Adams 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. The lead result guide covers how utilities pick the homes they sample. Small systems behave differently: why small systems go over more often.