Treasure Cove S/D, NC
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2028). 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 Treasure Cove S/D
Treasure Cove S/D serves about 760 people through 299 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in New Hanover County, North Carolina. EPA system ID: NC0465165; phone on file: 800-525-7990. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Treasure Cove S/D's lead record
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Treasure Cove S/D is 0 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 0 (not detected) |
| 2025 | 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. Treasure Cove S/D's reported as 0 (not detected) sits at the 56th percentile in North Carolina and the 25th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
14 other systems share New Hanover County; 7 of them have a higher latest lead result than Treasure Cove S/D. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cfpua-Wilmington | 212,227 | 0 (not detected) |
| The Cape Master System | 11,587 | 3 ppb |
| Carolina Beach Water System | 6,864 | 5.8 ppb |
| Kure Beach Water System | 5,484 | 5 ppb |
| Cfpua - Wrightsville Beach | 5,300 | 0 (not detected) |
| Figure 8 Island | 999 | 0 (not detected) |
| Glynnwood Mhp | 208 | 2 ppb |
| Northside Mhp | 180 | 0 (not detected) |
| South Ridge Mhp | 115 | 6 ppb |
| Oyster Point S/D | 99 | 0 (not detected) |
What to do in your house
Look up your address in Treasure Cove S/D'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 Treasure Cove S/D 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. Small systems behave differently: why small systems go over more often.