Thank you ladies & gentlemen for responding back. I surely can pick & try many of your useful suggestions for improving my water quality. For those who have asked for more input about my location, situation, i must add some intro. My land is located in Pakistan (a country full of problems). I'm 43 years old Pakistani male qualified in Physics & Mathemetics, but a world traveller by virtue of Apparel business, having no experience in farming at all yet me and a friend have bought some bad land (10-12 acres in all whatever cheap we could afford) and have planned to live our future life practising Permaculture. The ground water from the nearing well is also tested and found unfit. Isn't it a perfect recipe for a failure?
But we are those who believe in two things:
a. permaculture is the only responsible way of living a life. It is need of the hour. This is a silent revolution in disguise of gardening which can change the word as we dream it to be.
b. It is not what circumstances offer to us, it is how we respond to the given situation, that determines our fate.
Shall get back to you with answers of some of your other questions.
rgds,
KH