Chapter III DECLARATION, SURVEYS AND DELINEATION OF FLOOD PLAIN ZONES

1. (1) Where the State Government considers it necessary or expedient to do so, may, by notification in the official Gazette, declare that flood plain zoning shall be made in the manner hereinafter prescribed.
2. (2) The State Government may, direct that a survey be made of a river for the purpose of determining the limits within which the provisions of the Act are to be applied and that proper maps, charts and registers be prepared specifying all boundaries and landmarks and any other matter necessary for the purposes of ascertaining such limits.

1. (1) The Authority or any officer authorised by it shall carry out surveys of flood plains of the rivers and determine the nature and the extent of flood plains of the rivers.
2. (2) The Authority shall, on the basis of the survey carried out under sub- section
3. (1) above, establish flood plain zones and delineate the areas which are subject to flooding, including classification of land with reference to the relative risk of flood plain use into such categories as may be prescribed to safeguard the health, safety and property of the general public.
4. (3) The Authority shall prepare maps, charts and registers indicating the areas delineated under sub-section
5. (2) above.

For the purpose of carry out the survey under this Act, the Authority or any officer authorized by it on this behalf, shall, -

1. (a) enter upon and survey and take levels of any land;
2. (b) mark such levels, boundaries and lines by placing marks or boundary stones;
3. (c) measure the land;
4. (d) do all other acts necessary for the purposes of ascertaining the limits referred to in sub-section

1. (2) of Section 5 of this Act; Provided that the Authority or other authorised officers shall not enter any land or building without giving such occupier at least seven days prior notice in writing of their intention to do so.