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http://www.houstonpress.com/news/updated-heavy-rains-turn-houston-into-water-world-7462988
Just be thankful you don't live in California where the greenies are getting set to make people drink toilet water...and like it! It's recent on the 'everyone hates environmentalist and feminists' thread here. I estimate that the cost for the privilege of drinking sewer water will be a mere 10x or so what they pay now for whatever-the-hell they are drinking (which was snow-melt from the Sierra Nevadas when I lived in Silicon Valley, I believe, before I got the hell out of there a few years ago.) At least the anchovies will still swim up the San Francisco bay. Theoretically. Agenda-21 FTW!
You sound like you have a perfectly reasonable solution to a lack of water resources in California, so let's hear it!