Like RobA says, B Relan, go ahead and put whatever info. you're comfortable with regarding your location.

There's so much area specific information that you can get from the folks here.

Also as RobA says, it might be a good idea to line the sides with clay. I have no pond building experience but so many here do, and they'll chime in. Sandy soils can make the project fail.

Welcome aboard.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."