TITLE 17: CONSERVATION
CHAPTER I: DEPARTMENT OF NATURAL RESOURCES
SUBCHAPTER h: WATER RESOURCES
PART 3706 REGULATION OF CONSTRUCTION WITHIN FLOOD PLAINS
SECTION 3706.220 ELEVATIONS
Section 3706.220 Elevations
All elevations shown on the State Flood Plain Map and on the associated regulatory flood profiles shall refer to mean sea level (1929 adjustment) or other standard datum. The datum used shall be indicated.
(Source: Amended at 3 Ill. Reg. 29, p. 192, effective July 21, 1979)