dpb wrote, on Fri, 27 Jun 2014 16:56:24 -0500:

How many of 'em are there?

There are about 50 neighbors in the neighborhood, but, of course,
not everyone will be willing to pitch in. Just those with the
shallower wells (less than about 500 feet or so deep).

I'd think if they'd just pool together could buy a used trailer
for the tank and surely somebody has a PU to pull it?
WOuldn't take long to make up for the repeated truck rental.

Can a typical trailer hold 1,000 gallons (8,000 pounds)?
Can a pickup pull that up a windy 9% grade for about 5 miles?

If so, that's a good idea, since the truck rental is the
largest cost. The water itself is practically free.

Of course, we'd also need a pump...