Chemtrails Challenges

I am starting this thread for chemtrails believers to post specific challenges wherein they show what they think is evidence and someone takes up the challenge.

Another purpose is to throw out some stuff I've seen around that I haven't given time to.

This link holds the largest collection of "tests" the WITWATS crowd has presented:
http://www.geoengineeringwatch.org/htm/tests.html

On the above page is an index to the evidence they are looking at:
http://www.geoengineeringwatch.org/library/testing/

On the above page are the tests from California:
http://www.geoengineeringwatch.org/library/testing/california/

On the above page is this link to many pages which appear to be search results of California public water system data:
http://www.geoengineeringwatch.org/library/testing/california/public water/

Take a look and determine what the data is showing, where, why, what, and how, then develop an analysis.
I think the chemmies are pointing at this somewhere/somehow but I'm not sure what their claims are.
This might require contacting the agency that produced the data for some help, comparing it with weather such as drought, water outages, change in supply, etc.
This is a challenge, anybody game?