Water logging problem & its remedy.

I am working in water management system. I have made so many water harvesting structures with the help of Cairn India, Rajwest and sure Sanstha. Now a day water logging problem is alarming the Barmer people. This situation is created by human beings and nature also.About 50years ago I remember that there were "Bawadies" small deep well near the No. 4 school and east of it.There are few reasons :

• Canal water is mis utilised by the people.
• No any water is drawn from wells.
• Earth quake which alter the stream of water.The old river may change its way.
• Drainage system of Nagarparisad is not proper.
  
  How to get rid of this problem: Continue

RAIN WATER HARVESTING SYSTEM DESIGN

RAIN WATER HARVESTING SYSTEM DESIGN

In the ancient time people used to harvest rain water in natural ponds or in underground tanks. Rain water fall on roof of building is stored in underground tank through gutter and pipes. The capacity of underground tank depends upon annual rain fall, runoff coefficient & area of roof. For example roof is 12 meter length and 6 meter wide. The area of roof is 72 Square meter. The annual average (ten years) rain fall is 300 mm, the runoff coefficient is 0.8, than capacity of underground will be 17280 liters. The total cost including pipes and other construction will be Rs.60000/- approx. The farmers can harvest water in their farm. They choose the catchment area according to their need of water. In the Barmer district the water is harvested in underground tank  called “TANKA”. The  capacity of this tanka is 20000 liters to 1.00 lac liters. The material used for tanka is cement, coarse sand, fine sand and concrete 20mm. The catchment area 100 to 200 Square meter is provided. About 500 tankas have been prepared under my supervision with the help of Cairn India CSR programe.

WATER HARVESTING

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RAIN WATER MANAGEMENT OF MY HOUSE

1. My house is situated in urban area, Barmer.
2. The annual rain fall of Barmer is 277mm.
3. My house is 60 feet long and 19 feet wide. The catchment area is
1140 Square feet or 106 Square meters.
4. The runoff coefficient is 0.8
5. Water potential per year is 23500 liters.
6. Daily consumption of water for family is 250 liters. Thus for 90 days Consumption of water is 22500 liters
7. Rainy season is for three months i.e. from 15 June to 15 September.
Thus for designing water source one month rain fall is considered
One month rain fall is =23500/3= 7833 Liters.
8. I have connected total roof area through 100mm diameter pipe.
9. This water is collected in 2.1mx2.1mx2.1m under ground tank.
10. The volume of tank is 9261 liters
In this way I have saved the water bill of 3 months, 25% of annual
Water cost. I have also designed rural water storage tanks, pond of
15 Lac capacities.
CHANDANMAL