Common questions.
- Is French Camp Slough at Airport Way safe to swim today?
- French Camp Slough at Airport Way is currently inconclusive for swimming. Last sample is over 30 days old — too stale to be a reliable swim-safety indicator.
- When was French Camp Slough at Airport Way last tested?
- The most recent water-quality sample at French Camp Slough at Airport Way was collected on Sep 24, 2025 (251 days ago). California monitoring agencies test Bay Area beaches weekly during swim season (roughly May through October).
- What is the bacteria level at French Camp Slough at Airport Way?
- The latest reading at French Camp Slough at Airport Way shows E. coli at 185 MPN/100mL (EPA single-sample limit: 235).
- Does rain affect water quality at French Camp Slough at Airport Way?
- Yes. Heavy rainfall washes bacteria and pollutants from land into the water, raising contamination risk for 24–72 hours. The past 48 hours recorded 0.00 in of rain; the past 72 hours recorded 0.00 in. Our advisory threshold is ≥1.00 in over 48h (or ≥0.50 in over 72h) for enclosed or storm-drain beaches.
- Where is French Camp Slough at Airport Way located?
- French Camp Slough at Airport Way is located in the East Bay area of the San Francisco Bay region (coordinates: 37.8817°N, 121.2493°W). You can get turn-by-turn directions via Google Maps or Apple Maps directly from this page.
- How is the water quality data for French Camp Slough at Airport Way collected?
- Bacteria samples are collected by California state and county health agencies under the AB 411 Safe-to-Swim program and reported to the state's Safe-to-Swim database (data.ca.gov). Rainfall figures come from Open-Meteo forecast and archive data. Bay Area Swim aggregates both sources and updates every morning.
Also nearby
Data: California Safe-to-Swim (ODbL 1.0) · Open-Meteo — Precipitation (CC-BY 4.0) · Pipeline status