Water Jobs

Does anyone have any experience or insight into working for city, county etc.. water districts??

I am a fairly recent graduate currently working in corporate finance, and while i feel incredibly lucky to have the position I do, i can tell its not for me. There are a plethora of local water districts where I live(Southern California) and it seems like a great gig working for them. I have the opportunity to enroll in a water technology/Waste water management program at a local college and was looking for insight.

Any tips to break in the industry, what kind of certs classes i should focus on? I am keen to consider any position, office or field related. Thanks for any insight!