The trout farm is located in northern Ohio not too far south of Lake Erie.
Yes, he does no pumping whatsoever which is what a free flowing artesian well is. An artesian well has some pressure but a free flowing artesian well has enough pressure from a confined layer that the water shoots out of the well on its own.
I would kill for this on my property as I pay about $100.00 utility costs to run my well at 38 gpm 24/7 from late May to late September. Fortunately I sell my trout to more than make up for the cost. see
http://www.ligel.com/~jjbaird/bairdfish2.htm He does have some hydrogen sulfide (produces a gasy smell when it first comes out of the water and can be toxic to fish), but he takes care of that by dropping it through columns filled with plastic media which also aerates the water. The bad gases get blow off which include nitrogen gas and the water then runs under ground to his raceway building which is also below ground level. All the water flow is by gravity and there is so much some of it some of it has to be diverted into a local stream. Of course once the water runs through the raceways it ends up in the stream also.
