It appears that our coordinates are off by just over 7 miles (7.2 to be exact). I wasn't around back when we applied for our license so I am not sure who or how this happened. To be this far off seem like gross negligence.
I wouldn't call it gross negligence. You have to consider that many of the tools we take for granted were simply not around 20 or 25 years ago.
Years ago, people had to read a USGS Quadrangle map and interpolate points to get the proper latitude and longitude. It wasn't easy, and a lot of people never got the hang of it (I certainly didn't). DB Products made a plastic dealie that had graduations on it that you could line up with the latitude lines and the longitude lines, but if you weren't sure what you were getting, it could come out alpha foxtrot uniform. So, if you've had the license for a while, it might have been done before consumer access to GPS (1995?) and the turning off of selective availability (wouldn't give you a 7 mile error, though).
11 km is a pretty significant error. You
will need to have that recoordinated, and coordination is pretty much a business. It will cost several hundred dollars or more to correct, depending on how many frequencies you have, and the system configurations on the license.
Get ready for pushback. The problem is that everyone who came on the frequency after your agency (or business, I don't know exactly what kind of license you have) was put there in consideration of the reported location. A coordinator might have put someone geographically closer because of the error. Now YOU have to protect them. You might have to cut your power back, lower your antenna, put up a directional antenna that "protects" the other licensee, or outright change frequencies. I know radio license situations that have gotten people fired (usually for letting things like 800 MHz trunked licenses expire).
You might be asked to provide "letters of concurrence" or "letters of non-interference." In an LOC, you write to another licensee and ask them for permission to use the frequency and possibly interfere with them. In a LONI, you send the other agency a letter that states you won't interfere with them, and if you do, you'll mutually work with them to fix it. Your coordinator will give you guidance if that's necessary.
Basically, you should tell the coordinator (you can take your pick, there are four public safety ones, each serving a certain constituency and each having access to a particular swath of spectrum to steward, and a bunch of business ones... your best bet might be to use the "home coordinator" of the frequency that needs to be corrected) that your coordinates are wrong and you're just correcting them. You have not moved the station. This way, the other coordinators will know when it goes out for notification. Frequency coordination is an adversarial process where another coordinators' coordinations are challenged through objection. The coordinators will not certify an application as successfully coordinated until the objection is resolved. The FCC can, but generally does not issue a license until a coordinator certifies successful coordination. They would rather return it and tell the applicant to work their problems out.
The FCC will not let you go into ULS and just enter the correct coordinates.
Good luck. I know a little about this if you want to PM me.