|
|
|
|
|
|
Ms. Suprabha Marathe,
Assistant Engineer RWH Cell, BMC |
| |
What is the potential demand for RWH in Mumbai - say so many thousand buildings...
As such there is no demand for RWH in Mumbai. We have made it mandatory for new buildings that exceed 1000 sq. meters in area to meet secondary demands like flushing, gardening etc.
How much water can be conserved because of RWH in Mumbai - in terms of volume
Mumbai’s total area is 437 sq kilometre. Accounting for 20% of rainfall in Mumbai, 548 MLD can be conserved.
Do you think floods will be alleviated by RWH
It is possible in certain pockets. For example, like in Jaipur, it’s been very effective in controlling floods as ground water is very deep. In Mumbai, rainfall intensity and ground water level are high. Hence, recharge is not possible. We can have ponds made at different levels but space is a constraint. We can still work it out.
What are the laws related to RWH in Mumbai
Since 1st October 07, RWH is mandatory for new properties exceeding 1000 sq meters but we are planning to make it mandatory for areas exceeding 300 sq meters now.
What is Mumbai's demand supply gap of water - give source to your statistics
I don't have the needed information. According to IndianNGOs.com research, as per an MMRDA report, Mumbai’s present water demand, 3026 MLD (Million Litres Daily) is expected to rise to 7950 MLD by 2011, today the water supply being only 2500 MLD. Hence, there is a need for RWH in Mumbai as well.
What is the volume of tanker water and from where do the tankers get water
I don't have the needed information. Tankers draw water from bore wells, tube wells, etc.
How is BMC encouraging RWH
BMC is encouraging RWH via awareness campaigns. We have our own pilot projects that can demonstrate the success and people can see themselves. We have rainwater cells and a technical information cell as well. These help societies to conceptualize and execute such projects without any fees. It’s a value added service.
Is Mumbai behind other metros in implementing RWH
Mumbai is behind some cities in RWH like Chennai that started in 1992.
What are the typical problems of RWH in Mumbai
Water is available in abundance in Mumbai and it is available at a cheap price i.e 3. 50 paise per kilo litre. Accordingly, why will people invest in rain water harvesting? Also, there are technical problems like ones on reclaimed lands and ground water level being high, recharge is not possible. However, due to the first problem, it becomes challenging for us as well. Technical difficulties can be dealt with appropriately.
"Rain harvesting for better future" - Ms. Suprabha Marathe, Assistant Engineer RWH Cell, BMC
Contact Details:
2262 0251; aerwhbmc@yahoo.com
|
Copyright India Water Portal.
For reproducing or reprinting this interview, please contact portal@arghyam.org |
| |
|
|
