The measurements

The framework for sample collection includes monthly on-site testing at the sites. Teams of volunteers measure physical and chemical parameters in the field, using portable, hand-held instruments. Water samples are collected at each site and are processed in Channelkeeper's laboratory for bacteria with approved standard methodology (Colilert-18 and Enterolert-24, manufactured by Idexx Laboratories). Samples are also analyzed at UCSB laboratories for nutrients (nitrate-nitrogen and orthophosphate). Other characteristics such as vegetation and aquatic life are recorded during sample collection on standardized forms. As part of every sampling event, the instruments and meters are checked and calibrated against factory standards before taking them out into the field.

View our data by clicking here!

Find out more about what we measure and why they are important:

Dissolved Oxygen
pH
Conductivity
Turbidity
Temperature
Flow
Nutrients: Nitrate and Orthophosphate
Bacteria: Total Coliform, E.Coli, and Enterococcus

More information about our measurements:

Read our quarterly discussions and interpretations about the data in our newsletter.

Read our special reports about the data.

See the video of one of our volunteers making some measurements!

Click here to get more information about our storm watch enterococcus monitoring!

Click here to find out more about our Goleta Creek Report Card!