� FISCAL THE GENERAL ADJUSTMENT DID NOT INCLUDE APPROXIMATELY 25 PERCENT OF THE VERTICAL CONTROL NETWORK.  BENCH MARKS IN “STABLE” AREAS WHICH WERE REMOVED FROM THE ADJUSTMENT (DENOTED AS “POSTED”) BECAUSE OLDER DATA DID NOT  FIT WITH THE LATEST DATA. THIS DATA WAS INCORPORATED INTO THE NAVD 88 DURING YEARS 1992-1993.