The Water Thief by Nicholas Lamar Soutter
In a futuristic society where one is ruled by Corporations, everything costs caps, even rainwater and air.
Sarah Aisling, who once was very well off but decided that was no life, stole rainwater and was arrested for her crime. Charles Thatcher decided this was something to write about, as that was his job at Ackerman Brothers Securities, finding topics for stories and getting paid for it.
The more he thought about it, the more it intrigued him. He began to dig deeper into her past. When he could not locate her, he found her best friend Kate. Charles and Kate became friends and she showed him the other side, where those less fortunate found a way to survive.
Ackerman Brothers did not like what Charles was doing. His colleagues became concerned about him and his doings. You will have to read for yourself to see which side wins out, if any at all.