(A) Vertical datum. The vertical datum for all survey work performed shall be the North American Vertical Datum 1988 Adjustment (NAVD88). All vertical control work shall commence and end at Tontitown GPS Monument Network monument or Tontitown GPS Monument Network first generation monument.
(B) Accuracy standard. Elevations for all concrete monuments shall be determined to an accuracy standard equal to third order classification as defined by the Federal Geodetic Control Committee. All field techniques and procedures shall be compatible with the equipment utilized to insure that a true third order accuracy level is achieved.
(Ord. 2006-12-280, passed 12-5-06; Am. Ord. 2013-04-417, passed 4-2-13; Am. Ord. 2013-09-440, § 152.900.03, passed 9-3-13)