here is the water report for Pueblo, CO.http://www.pueblowater.org/images/files/Water_quality_summary-finished_water.pdf Its not exact, but assuming you're using tap this will get you in the right direction. You're water is tweakable, but it uses chloramine, need to treat that first. Until you learn more about tweaking water, I would switch to RO (reverse osmosis) from your local grocery store.