Does Cryptosporidium ever go away?

I'm curious to know, does Cryptosporidium ever truly disappear? I understand it's a highly resilient parasite that can contaminate water and cause serious health issues in humans and animals. But is there ever a point where an area or a water source is completely free of this parasite? And if so, what steps need to be taken to ensure its eradication and prevention of future outbreaks? I'm particularly interested in the role of modern water treatment technologies and their effectiveness in eliminating Cryptosporidium from our water systems.