pH (0-14)
What's this?
7.9
Rotary Creek : St Lawrence River
Ontario, Canada
Observed by
Mia Vo
- Observed on: Thu, 24 Jul 2025 12:36:00 -0400
-
Associated with:
River Institute : Upper St. Lawrence River Volunteer Monitoring - Lat: 45.0123004
- Lng: -74.735
Observation report
See trends at this locationWater quality tests
Pending Quality Check from Water Rangers What's this?
Dissolved oxygen mg/L
What's this?
6.0
Secchi depth m
What's this?
bottom visible
Hardness mg/L
What's this?
150.0
Alkalinity mg/L
What's this?
90.0
Water depth m
What's this?
0.19
Conductivity μS/cm
What's this?
295.0
Air temperature °C
What's this?
31.0
Water temperature °C
What's this?
25.4
Wildlife
Weather
Current weather What's this?
Weather in previous 24 hours What's this?
Latest photos
Notes
The water was clear, with many flat rocks leading into the stream. A shaded area with a bench provided a good resting spot and a stable surface for testing. Aquatic plants, insects, and algae were present on the rocks. Numerous shells and rocks were visible beneath the water.