The coordinates above will take you to a California historic landmark, with a plaque describing the move of the Giant Powder Company, first company to make dynamite in the US, to Point Pinole after disastrous explosions at their San Francisco and Berkeley plants.
The cache is within half a mile at the coordinates N 37° A.B, W 122° C.D, where
A = nun + tet
B = tav + tav + gimel
C = kaf + alef
D = tav + shin + kaf + het
Checksum = 45
You can check your answers for this puzzle on Geochecker.com.