@Woodbridge Environmetal: The neighbors have not been receptive in the past to other shared issues (ie the giant tree in the photo). I will definitely get in touch with the township engineers office to see what guidance they can provide. I know this is a delicate issue that should not be done without township involvement.

@Douglas: A few people have mentioned water gardens but I wasn't quite sure what that meant. Thank you for this link. It seems to detail some of the options. I will have to dig into it.