The time has finally come and we have workman digging up our street. I wonder if anyone could shed some light on a couple of symbols they've sprayed on the berm next to our driveway:

1. A large orange E
2. A purple line with 2 dots on either side of it (looks like a big divided by symbol)


I have no issue with them digging up the street\berm but the orange E is very very close to the edge of the entrance to our already fairly narrow driveway and I worry if it's something that will be above the ground someone may easily reverse into or drive over it coming out of our driveway.