Every Group Housing Scheme etc., shall be provided with required facilities and infrastructure for conservation and harvesting of Rain water viz.,

1. Percolation Pits:

The paved surface around the building shall have percolation pits of 4’x4’ covering atleast 30% of such area. Such pits shall be filled with small pebbless or brick jelly or river sand and covered with perforated concrete slabs.

The following requirements are optional and to be provided depending on the site conditions:

2. Terrace Water Collection:

The terrace shall be connected to a sump or the well through a filtering tank by PVC Pipe. A valve system shall be incorporated to enable the first part of the rain water collected to be discharges out to the soil if it is dirty.

A filtering tank measuring 3 to 4 Ft., square can be constructed near the sump. A tank can be divided by a perforated slab and one part should be filled by small pebbles and other by brick jelly. The bottom portion of the tank should have a slope to avoid stagnation of water.

3. Open ground:

Whenever there is open ground a portion of top soil should be removed and replaced with river sand to allow slow percolation of rain water.

OR

(D) Any other methods proved to be effective in conservation and harvesting of rain water may be adopted in each and every construction taken up.

17. The requirements stipulated in these orders are subject to overall conformity with the statutory Development Plan/Master Plan/Zonal Development Plan and Zoning Regulations. For other concerning aspects like structural designing, building services, parts of building requirements, plumbing, fire protection, safety specifications, standard and code of practice the recommended requirements in National Building Code of India shall be adhered to.

The existing provisions of Zoning Regulations, Building Regulations/Bye-laws etc., which are not inconsistent with these orders shall continue to be followed.

15. THESE ORDERS SHALL COME INTO FORCE WITH EFFECT FROM 1-08-1998