11. SOLUTION

For this we suggest a three level program.

1.      At the level of individual buildings which can afford open area.

2.      Road level.

3.      Open city pockets like parks, pond, etc.

11.a Individual Premises

 We suggest that premises should leave 25% open area as kuchcha where they should make absorbing lawns with rockery, grass, and sprinklers.

For a plot of 100 sqm area,

Open kuchcha area = 25 sqm

Rainfall received in the total of the plot = 100H0.70

= 70 cum

All the open area and the rooftop should be able to hold the water upto the depth of 0.20m maximum, keeping consideration of peak hours.

So we propose-

1. Rooftops should be made of RCC to hold water upto the height of 20 cm. 3’’f pipe should take down to drain out the water.

We can connect it to 1.5’’f pipe to make sprinklers in the lawn. It will save the grass from being damaged.

2. Open kuchcha area should be 40cm down from the floor level.

 An absorbing lawn should be made as per the details shown.

11.b Roads

Roads should have pavements as recharge trenches as per the detail shown in the drawing/layout. This will collect surface run off in the open areas of roads and percolate to the ground. Wastewater and sewer lines should run separately.

11.c City Level

Surface run off the densely populated areas where open areas cannot be left should be taken to water parks/ponds. At the city level, we should plan water parks to collect extra run off and maintain aquatic life.

11.d Advantages Of the System

a). We are able to percolate water naturally.

b). Easy maintenance. It will easily work for 5years.

c). Less complications, system is independent in working.

d). No fear of people boring down wastewater. Even wastewater can also be sprinkled in        lawns in dried months.

e). Cost effective.

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