dilbert,heres one a link to the article in the NY Times, the fish wrap of record.
1. No cite.
2. Sure, that's true if a small percentage of people are collecting rain water.
3. How can they possibly make the conclusion in paragraph 3 (which is incidentally inconsistent with what you originally claimed: "state of colorado commissioned a study and found that all the water that fell never makes it to the lakes or rivers.)
4. Where is the actual study, not some asshole right wing (and apparently unreliable that you aren't willing to tell us who he or she is) wing-nut summarizing the study? Originally Posted by TexTushHog
http://www.nytimes.com/2009/06/29/us/29rain.html?em
as for the study, it is probably somewhere on the Colorado.gov site, not sure who commissioned it tho.