Groundwater Recharge
Figure 3: Cross-section of recharge pit for shallow groundwater recharge in Lalitpur
Intake well
Recharge well
Connection pipe
Packed sand
Floating particles
Packed gravel
Floating particles
Unfi ltered rain water
Unfiltered rain water
Packed boulders
Sand fi lter
Natural gravel
Sand filter
formation
Aggregates
Aggregates
Filtered water
Filtered water

Valley before the introduction of the piped supply NGOFUWS (2006) Traditional stone spouts enumeration,
system. The abundance of rainwater in the Valley means
mapping and water quality. Unpublished report by NGO
that modern techniques of rainwater collection have
Forum for Urban Water and Sanitation, Kathmandu, Nepal
enormous potential to fulfi l the unmet water demand.
NGOFUWS/UN-HABITAT (2008) Feasibility of shallow
However, storing rainwater in large reserve tanks is not
groundwater recharge from rainwater harvesting in Kathmandu.
always practical or economic for individual households.
Unpublished report by NGO Forum for Urban Water and
Sanitation, Kathmandu, Nepal
The introduction and wider implementation of artifi cial
groundwater recharge could be one of the best options
Shrestha KB (2001) Concepts and methods of geostatistics
for storing and conserving rainwater.
in agricultural sciences and forestry with an application in
groundwater data. PhD thesis, Technical University of Vienna,
Austria
References
UN-HABITAT (2006) Rainwater harvesting and utilisation, Blue
CIUD/UN-HABITAT (2009) Stone spouts network in drop series, Books 1 to 3. Nairobi: United Nations Human
Kathmandu Valley (in Nepali). Kathmandu: CIUD/UN- Development Programme, Water and Sanitation Infrastructure
HABITAT/LSMC Branch
JICA (1990) Groundwater management project in Kathmandu UN-HABITAT (2008) Water movement in Patan with reference
Valley, Final report, Executive summary, p 2. Kathmandu: JICA to traditional stone spouts in Nepal. Kathmandu: UN-HABITAT,
Mahnot, SC; Sharma, DC; Mishra , A; Singh, PK; Roy, KK
Water for Asian Cities Programme Nepal
(2003) ‘Water harvesting management’ in Kaul V (ed) Practical
Guide Series 6, Jaipur: SDC Intercooperation Coordination
Unit
MPPW (2002) Optimising water use in Kathmandu Valley,
Inception report. Kathmandu: Ministry of Physical Planning
and Works
30
Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64