The attached report has two pages. The first page was Carrollton water from my house in October of 2008. The second page is from a Culligan RO water machine that was in my local Walmart. It is a bit dated but it does show what remains after RO filtering. Ward Labs did the analysis. They have a brewers test that costs about $27 now. There is also a Household Mineral Test for $21 that is probably all that is needed.