Hugh welcome to the PB forum. Bob-O is right you came to the right place. There is an entire section here on ponds construction : http://www.pondboss.com/cgi-bin/ubbcgi/ultimatebb.cgi?category=2
We need to move this discussion to a new topic after Hugh sees these replies or we will never be able to find it under red-tail SMB.

Start with these

Water ,Dirt and Light

http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=20;t=001945;p=1#000000

Site Selection --- BMR

http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=20;t=001964;p=1#000000

Long thread on the process

http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=20;t=002357;p=1

Try this one with Goose sounds and all -- Brettski Pond link.

http://www.libertynaturepreserve.com/p5.htm