California trials Australian tech for forecasting water quality of San Joaquin River Delta

A new partnership between California and Australia will test specialized sensors to monitor water quality in the Sacramento-San Joaquin River Delta, a crucial agricultural and ecological water body near the Bay Area.

Developed by CSIRO, Australia's national science agency, AquaWatch Australia will be a world-first system which combines data from water sensors and satellites to provide near-real-time water quality monitoring and forecasts.

University of California (UC) Davis, UC Merced and United States Geological Survey (USGS) will work with CSIRO to pilot test AquaWatch, which has the potential to help protect the Delta's natural ecosystem - including the endangered Delta smelt - and the agricultural sector reliant on it.

Secretary Wade Crowfoot of California Natural Resource Agency said the landmark partnership between California and Australia was game changing.

UC Merced's Dr Erin Hestir said one of CSIRO's specialized water quality sensors has been installed near where the Sacramento and San Joaquin Rivers merge to monitor water delivered for agriculture and protect the delta's natural ecosystems.

The project contributes to a Memorandum of Understanding to support climate adaption signed between the Australian Government and the Californian State Government in 2023.

Australian Consul-General in Los Angeles, Tanya Bennett, said it was fantastic to see the AquaWatch test site in Sacramento reach this significant milestone, as a key activity under the Australia-California agreement on climate action.