Hi Caroline, on The Water ...
Published by Trudi Schifter, CEO and Founder AquaSPE
Hi Caroline, on The Water Network check out our collections, here is one on Wastewater math that includes some courses (eg American water college). https://thewaternetwork.com/collection-kQ6/wastewater-math-Qx625i0rel3NuigP0p-4Ag
Here is a link to the youlearnwater post that includes some good links https://thewaternetwork.com/article-FfV/new-on-line-cpd-training-courses-for-water-managers-and-supervisors-utvjs3-7GY_pdMk8hGdMyw .
If you filter in the library for "tutorials" you will find almost 50 short video tutorials including from all things https://thewaternetwork.com/all-content-Nuo/list?taxonomy=oOFWkjN-_P1YrSWhbsy18g&expanded=category
or "water videos" https://thewaternetwork.com/all-content-Nuo/list?taxonomy=oOFWkjN-_P1YrSWhbsy18g&expanded=category .
EAWAG is the water research center at the Federal Institute of Technology here in Zurich. The Director is the former dean of engineering at Cal Tech. They are world class and have online training: https://www.eawag.ch/en/department/sandec/e-learning/moocs/
finally, IHE DELFT is the largest and oldest graduate program in the world for water they also offer online courses https://www.un-ihe.org/online-courses
Hope this helps