I suspect by the time the pig piss gets 100 or more feet underground it is no longer pig pis :)
Most of the water in the west comes from snow fall.
The problem with the aquifer here is dissolved  minerals.

The farmers had nothing to do with it. Most don't even know that it is used for that purpose.

Paul Lamar

Paul,
The nitrates from all forms of farm wastes is a big problem in the Central Valley but there are ways to change that. As you said, pig piss changes as it perks down through the ground but it still has to broken down to nitrogen to be better for ground water and the plants can use it. Holland started using big hay stacks with funnels stuck around them to be used for the urinals at beer festivals. The hay broke down the nitrates into usable nitrogen and mulch. Urine is sanitary, thought any poo spoils that party.
http://www.gizmag.com/luritonnoir-urine-into-fertilizer/27370/

Ray Hellstrom


I have always been impressed with Dutch agricultural techniques.
As  I under stand it they introduced Co2 to green houses to enhance
flower growth. IMHO that is where Co2 got the name green house gas.

Where Co2 flows food grows.

Paul Lamar

The Rotary Engine News Letter. Powered by Linux.
If you want off the list PLEASE let me know and I will
remove  you.  ACRE NL web site. http://www.rotaryeng.net
You Tube http://tinyurl.com/beqqxas
Copyright 1998-2015 All world wide rights reserved