Regarding the drinking/tap water, if you are going to make claims like this, then please provide evidence. Without evidence, people can make all types of claims. Air is the primary concern for nearby residents as it is the only complete exposure pathway at the moment unless they are rolling around in the mud near the spill site. HAZMAT crews who specialize in Level A/B PPE (respirators) can cleanup the site in timed intervals using a zoned cleanup plan.