County · North Carolina
Onslow County, North Carolina: drinking water records
This overview covers 13 ZIP codes and 19 community water systems in Onslow County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Onslow Wtr and Sewer Authority NC0467035 | 156,755 | 250 | 0 | 1 | 0 ppb |
| Jacksonville City of NC0467010 | 49,093 | 240 | 0 | 1 | 0 ppb |
| USMC Lejeune--Hadnot Point NC0467041 | 37,500 | 60 | 0 | 0 | 4 ppb |
| USMC Lejeune--Holcomb Blvd NC0467043 | 17,000 | 60 | 0 | 0 | 0 ppb |
| USMC Lejeune--New River Air St NC0467042 | 11,500 | 60 | 0 | 0 | 4 ppb |
| Old Settlers Water System NC7067008 | 2,677 | 0 | 0 | 1 | 0 ppb |
| Lauradale S/D NC0467136 | 2,527 | 0 | 0 | 2 | 4 ppb |
| Walmar Manor MHP PA7670005 | 400 | 0 | 0 | 9 | 9 ppb |
| City of Jacksonville - Springfield Apts NC7067007 | 385 | 0 | 0 | 1 | 0 ppb |
| Southgate MHP NC0467229 | 94 | 0 | 0 | 5 | 2 ppb |
| USMC Lejeune--Rifle Range NC0467046 | 3,500 | 0 | 0 | 0 | 0 ppb |
| Northwest Onslow Water Assoc NC0467030 | 2,555 | 0 | 0 | 0 | 5 ppb |
| Raintree/Summersill Estates #2 NC0467222 | 1,539 | 0 | 0 | 0 | 0 ppb |
| Osprey Cove 1 NC0467103 | 475 | 0 | 0 | 0 | 0 ppb |
| Osprey Cove 2 NC0467102 | 475 | 0 | 0 | 0 | 0 ppb |
| Sherwood MHP NC0467164 | 470 | 0 | 0 | 0 | 0 ppb |
| Mantua Mobile Home Park OH6704212 | 250 | 0 | 0 | 0 | 0 ppb |
| Summersill Estates No 1 NC0467224 | 163 | 0 | 0 | 0 | 0 ppb |
| Chanda`s Ridge NC7067005 | 70 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Onslow County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.