Beachway and Raritan
Keansburg Borough, Monmouth County
Good Water Quality
Clean water with minimal concerns
Very low bacteria levels - excellent water quality
5-Year Water Quality Trend
Bacteria Level#Advisories
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 | 13 CFU | 1 | 0 |
| 2024 | 17 CFU | 1 | 0 |
| 2023 | 13 CFU | 2 | 0 |
| 2022 | 8 CFU | 0 | 0 |
| 2021 | No data | 0 | 0 |
| 5-Year Avg | 13 CFU | 4 | 0 |
Quick Stats
- 5-Year Geomean
- 13 CFU/100mL
- 2025 Advisories
- 1
- Total Closures (5yr)
- 0
- Beach Type
- ocean
- Station ID
- MC0003
Exercise Caution
1 advisory this year. Avoid after heavy rain.
2025 Advisories
1
5-Year Total
4
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.
Data Source
Data provided by the New Jersey Department of Environmental Protection (NJDEP) Cooperative Coastal Monitoring Program (CCMP). Learn more →