THE CACHE IS NOT AT THE POSTED COORDINATES, BUT THAT IS A GOOD PLACE TO START!
I was scouting out a couple of potential options for a puzzle or multicache in the area and came upon something interesting. The light posts in this parking lot are all numbered and have a silver plate on them with information which includes the Pole #, Who put up the pole, and the date. It also includes a second line which begins with an "H". I checked, and this line that starts with "H" is unique to each pole, so I decided that was a good basis for a puzzle! As the cache title suggests, your task is to find "Pole #15" or "Pole #27" and retrieve the information from the line that starts with "H". The format of the information will be:
Once you have the correct information from one of the poles, you can plug the numbers you find for A, B, C, D, & E into the following equations to determine the final cache location.

You can validate your puzzle solution with certitude.
I hope you enjoy this cache!