Doable with various techniques, to varying levels of effectiveness. Activated carbon is the cheapest, but not the most effective. Definitely tractable. http://

Doable with various techniques, to varying levels of effectiveness. Activated carbon is the cheapest, but not the most effective. Definitely tractable. http://www.oregon.gov/oha/PH/HealthyEnvironments/DrinkingWater/SourceWater/Documents/gw/arsenicremoval.pdf http://www.oregon.gov/oha/PH/HealthyEnvironments/DrinkingWat... http://www.who.int/water_sanitation_health/hygiene/om/linkingchap6.pdf http://www.who.int/water_sanitation_health/hygiene/om/linkin...