Hancock
Seaside Heights Borough, Ocean County
Good Water Quality
Clean water with minimal concerns
Very low bacteria levels - excellent water quality
5-Year Water Quality Trend
Chart shows geometric mean bacteria levels (CFU/100mL) by year. The EPA Beach Action Value is 104 CFU/100mL.
Year-by-Year Data
| Year | Geomean | Advisories | Closures |
|---|---|---|---|
| 2025 | 31 CFU | 1 | 0 |
| 2024 | 27 CFU | 2 | 0 |
| 2023 | 33 CFU | 5 | 3 |
| 2022 | 14 CFU | 1 | 0 |
| 2021 | No data | 4 | 1 |
| 5-Year Avg | 30 CFU | 13 | 4 |
Closure History (5 Years)
Note: Rainfall closures are precautionary measures taken after heavy rain, not reactions to detected problems. Most beaches reopen within 24-48 hours.
Quick Stats
- 5-Year Geomean
- 30 CFU/100mL
- 2025 Advisories
- 1
- Total Closures (5yr)
- 4
- Beach Type
- ocean
- Station ID
- OC0036
Exercise Caution
1 advisory this year. Avoid after heavy rain.
2025 Advisories
1
5-Year Total
13
5-Year Closure History (4 total)
- Bacterial: 4
Tip: Wait 24-48 hours after heavy rainfall before swimming. Bacteria levels typically return to normal within this timeframe.
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View Town Guide →Data Source
Data provided by the New Jersey Department of Environmental Protection (NJDEP) Cooperative Coastal Monitoring Program (CCMP). Learn more →