The cache is not at the above coordinates, but you will need to start here first!
Welcome to Historic San Juan Capistrano, or HSJC for short. This is part of a mini series of multi caches that are placed at historic areas in San Juan Capistrano. It's been a while since I've done a new one, and I've had great feedback in showing historic areas of San Juan Capistrano. This is an easy two stage multi.
At the above coordinates, you will see a plaque of the same name as this multi. There are three sets of numbers on the plaque. In order, they are ABCD, EFGH, IJ.
The cache can be found at:
N 33° 30.(I+J)IG W 117° 39.D(B-J)E
Checksum for the last three digits on the N and W coords = 28
You may use ceritude below to double check your coordinates (and to get a hint for the final).
Use stealth and please replace the cache exactly as you found it. BYOP!
You can validate your puzzle solution with certitude.