You are mistaken about industrial and development water use in the US West. Agricultural water use in California exceeds urban water use by a factor of almost 4

You are mistaken about industrial and development water use in the US West. Agricultural water use in California exceeds urban water use by a factor of almost 4x, and exceeds industrial use (broadly defined, minus agricultural industry) by at least 16x. Agriculture is the elephant in the room. Residential water use (lawns!) is a distant second. Everything else is a very distant third. Source: http://www.ppic.org/content/pubs/report/R_211EHChapter2R.pdf http://www.ppic.org/content/pubs/report/R_211EHChapter2R.pdf