we live on the lake and as dry as it has been i have been pumping lake water for my lower portion of my yard and vegetable garden. what bad effects could i possibly be doing to my yard and vegetables? am i making more trouble than its worth the free water?
Only 2 things I can think of that would give you a problem.
If there is a lot of houses on this lake ( and depending on what size the lake is ) fertilizer and weed killer could run off of lawns and into your lake which you then pump on to your vegies.
Check with your local ordinances. Here in Michigan I believe you must obtain a permit to pump water from a body of water even if said water is on your property. Some places are just protective of water suppies. A quick trip to city hall could save you a ticket.
A city nearby to me just passed an ordinance that you can not drill a well on your property and use that water for plants and lawn. I'm sure they have a good reason but it sounds like a waste of resources to me.