Electrical Conductivity Data loggers
The chloride or salt content of the creeks can be measured with electrical conductivity loggers. We now have 3 real-time conductivity loggers active, one in Stoney Creek, one in Eagle Creek, and one in the Brunette River at the Cariboo Dam. In addition, with a grant from the

Pacific Salmon Foundation
we have purchased 6 more Solinst Levelloggers that record Electrical Conductivity, Water temperature, and Depth to add to the 3 purchased by the Pacific Science Enterprise Centre making 9 to be deployed in other creeks in the Lower Mainland.
Volunteers with the Road Salt and Salmon Project installed one of those conductivity loggers in Guichon Creek on the BCIT campus in early February, just in time to catch the response to a cold snap on February 12.
See how Guichon Creek compares to Tributary 3A of Stoney Creek:

More loggers
Over the summer, Solinst loggers have been deployed in Silver Creek, Burnaby and Waag Creek, North Vancouver. A HOBO electrical conductivity logger was moved from Stoney Trib 3A to below the Lougheed Hwy. on the main stem.
The Streamkeepers community has been very supportive. These are the groups that have expressed interest in having loggers in their creeks:
23. Yorkson Watershed Enhancement Society, Langley
Water Ranger monitoring
Dillon Consulting donated money to buy 5 Water Ranger kits. These kits have a hand-held electrical conductivity and temperature meter and test strips to measure pH and other parameters. They have been distributed to Eagle Creek Streamkeepers, the Biology Club at Burnaby Mountain Secondary School, a teacher at Montecito Elementary School, and home-school teachers in Burnaby and North Vancouver. We have purchased 5 more kits to give to other schools this fall.