Keyport Borough, Monmouth County
Check current conditions before swimming
Low bacteria levels - good water quality
Chart shows geometric mean bacteria levels (CFU/100mL) by year. The EPA Beach Action Value is 104 CFU/100mL.
| Year | Geomean | Advisories | Closures |
|---|---|---|---|
| 2025 | 45 CFU | 7 | 0 |
| 2024 | 28 CFU | 2 | 0 |
| 2023 | 44 CFU | 5 | 0 |
| 2022 | 19 CFU | 0 | 0 |
| 2021 | No data | 3 | 0 |
| 5-Year Avg | 39 CFU | 17 | 0 |
7 advisories this year. Check current conditions before swimming.
2025 Advisories
7
5-Year Total
17
No closures in the past 5 years
Tip: Wait 24-48 hours after heavy rainfall before swimming. Bacteria levels typically return to normal within this timeframe.
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Data provided by the New Jersey Department of Environmental Protection (NJDEP) Cooperative Coastal Monitoring Program (CCMP). Learn more →