Don't do it without checking with your state's department that deals with fish, wildlife and parks, usually located in your state capital. You could be liable for the cost of cleaning up pollution stemming from underground oil tanks or old dump sites on your property, whether or not you caused the problem in the first place. That's something worth looking into before you buy a piece of property, because there's not much you can do about it afterwards. Ask the seller if there are any such problems, and have your attorney include a clause in your purchase agreement that covers you in the event such problems arise. If there is special concern because of the unique nature of the property, you might even consider hiring an environmental consultant.
Federal laws govern the draining and filling of wetlands.
If you have places on your property that are boggy even part of the year, avoid serious legal trouble by finding out what your responsibilities are before making changes. You might start with your state's department of environmental protection, probably located in the state capital. The federal Office of Wetlands Protection in Washington, DC also might be able to help. Utility lines . As a rule you're not liable for maintenance of utility lines crossing your property, but to be safe don't do anything to cause potential damage to them, such as planting fast-growing trees under them.