St. Lawrence River Dock River Intitute : St. Lawrence River

Cornwall, Ontario, Canada

Observed by
Katherine Tieman

Observed on: Fri, 01 Aug 2025 08:50:00 -0400
Testers Katherine Tieman
Associated with:
River Institute : Upper St. Lawrence River Volunteer Monitoring
Lat: 45.0164665
Lng: -74.6994781

Observation report

Pending Quality Check from Water Rangers What's this?

pH (0-14) 7.9

Dissolved oxygen mg/L 11.0

Secchi depth m bottom visible

Chlorine ppm 0.0

Hardness mg/L 120.0

Alkalinity mg/L 80.0

Water depth m 0.07

Conductivity μS/cm 320.0

Air temperature °C 17.5

Water temperature °C 22.2

Amphibian

Plant

Insect

Loosestrife

Current weather

Weather in previous 24 hours

No photos uploaded.

Green frog, purple loosestrife