Thanks for taking the time to answer my question, John! I didn’t consider the possibility of sucking water from under the oil-slick, but that’s quite reasonable. I’m just getting started on your website, taking the water course first – can’t do without water! – and that creek, while intermittent during dry spells, is the nearest water source for me besides an OLD hand-dug well in the little patch of woods next to our property. It’s about 14′ deep, with 4-5′ of water in it – and God only knows what else, as it’s not covered. There once was an old farmhouse there, with a small cement-lined cistern or spring-house in the ground next to the well – all that’s left is the cement box of it. I doubt anyone but me knows about it now. I should take a water sample to be checked. The owner wants too much money for the land, and all it is is a bunch of twisty young black walnuts and rocks piled up at the edge of the field by farm equipment. If it’s clean water, that well could be worth more than its weight in gold.
Where I live, most of the farmland is owned and worked by dairy farms that keep their cows in big barns, collect the manure and urine, then mix it with water and create liquefied manure (slurry) that is injected into or sprayed onto the crop fields. I’ve seen the runoff seeping into the little creek at the foot of the hill behind our house, and it looks like there’s oil or gasoline floating on top of the runoff as it oozes from the ground – probably from the heavy farm equipment used. Ordinarily, the creek water looks fairly clear, but knowing of the many, many fields upstream that have been slurried, what method(s) would YOU, the experts, recommend, if this were my only source of water? A+B+C, I bet – with emphasis on C!