If there are large, old growth tress near where the sewer line issue is, see about taking those trees down.

The builder admitted they provided inaccurate information, and they proactively helped the home buyers affected by this issue to get exceptions allowing us to build a fence and plant shrubs on top of and beyond the easement line (but we still can't plant tress). hence, they refused to reimburse us furthermore. 

there is city sewer in that ditch to collect street rainwater in my backyard and lot of grown tress which i have to cut some still more there some in dead condition which i have to spend money to remove

He had to take two huge tress out that cost quite a bit and paint the exterior.

Make Sure you install it far away from tress, houses, cars, or anything else that can catch on fire.

If you go out west and take a big chuck of grass land to plant tress, well now your destroying 1 eco-system to build a different one, doesn't seem so "green" to me. 

or cut the tress down...

When it’s time for them to keep the deposit for the tress.

And tress are everywhere here and large.

@Tress PearceWelcome to Bigger Pockets.