Water Quality in 28540 — Jacksonville, NC
EPA data for ONSLOW WTR AND SEWER AUTHORITY
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 28540 in Jacksonville, North Carolina is served by ONSLOW WTR AND SEWER AUTHORITY (EPA ID: NC0467035). This system provides water to approximately 156,755 people from groundwater sources.
There are 11 community water systems serving this area.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| October 28, 2024 | Lead and Copper Rule | Monitoring | Resolved |
| October 28, 2024 | Lead and Copper Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| July 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| July 1, 2024 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| February 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| February 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| January 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| December 11, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| December 11, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 10 | Yes |
| Consumer Confidence Report Rule | Reporting | 9 | No |
| Lead and Copper Rule | Treatment Technique | 2 | No |
| Revised Total Coliform Rule | Microbiological | 2 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| ONSLOW WTR AND SEWER AUTHORITY | NC0467035 | 156,755 | Groundwater |
| JACKSONVILLE CITY OF | NC0467010 | 49,093 | Groundwater |
| OLD SETTLERS WATER SYSTEM | NC7067008 | 2,677 | Groundwater |
| LAURADALE S/D | NC0467136 | 2,527 | Groundwater |
| RAINTREE/SUMMERSILL ESTATES #2 | NC0467222 | 1,539 | Groundwater |
What You Can Do
- Request your water system’s Consumer Confidence Report (CCR) — Your utility is required to publish this annually
- Consider a home water test — Independent testing can reveal issues in your specific plumbing
- Install a certified water filter — NSF-certified filters can address specific contaminants
- Contact your water provider — Ask about current treatment and any ongoing remediation
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in North Carolina
- 27045 (Rural Hall)
- 27101 (Winston Salem)
- 27203 (Asheboro) — 5 violations
- 27215 (Burlington) — 15 violations
- 27260 (High Point) — 9 violations
- 27284 (Kernersville) — 2 violations
- 27288 (Eden) — 32 violations
- 27292 (Lexington)
- 27320 (Reidsville) — 28 violations
- 27330 (Sanford) — 27 violations
- 27360 (Thomasville) — 3 violations
- 27395 (Greensboro) — 24 violations
- 27502 (Apex) — 32 violations
- 27511 (Cary) — 95 violations
- 27514 (Chapel Hill) — 79 violations
- 27520 (Clayton) — 9 violations
- 27522 (Creedmoor) — 3 violations
- 27530 (Goldsboro) — 18 violations
- 27536 (Henderson) — 91 violations
- 27573 (Roxboro)
Nearby Water Quality Reports
- 28560 (New Bern) — 38 mi — 3 violations
- 28501 (Kinston) — 38 mi — 21 violations
- 28401 (Wilmington) — 45 mi — 4 violations
- 27530 (Goldsboro) — 56 mi — 18 violations
- 27833 (Greenville) — 58 mi — 4 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for ONSLOW WTR AND SEWER AUTHORITY (NC0467035) on EPA.gov.
Frequently Asked Questions
Is the tap water in 28540 safe to drink?
Jacksonville’s water system has recorded 5 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
Where does 28540’s water come from?
The primary water source for this area is groundwater. ONSLOW WTR AND SEWER AUTHORITY serves approximately 156,755 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 28540 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 28540. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 28540?
Radon zone data is not available for ZIP code 28540. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.