1. By Prof. Mahesh D. Desai (Ph.D.), Visiting Professor, AMD, SVNIT, Surat. Consulting Engineer, EFGE Consultant, Surat. TRENDS, BOUNDARIES AND WATER

2.  Water Resources of Next Decade - Projections for Gujarat: Workshop on Ground Water Management and Water Use Efficiency in State of Gujarat, Union Territory of Daman & Div. Chairman: B.N. Navalwala (Advisor to Chief Minister). Recommendation: Use of existing dam storages for recharging fast depleting aquifers in Gujarat. SEARCH OF NEW SOURCE FOR URBAN WATER SHORTAGE, 27/03/2009 Continue…

3. Study: a) Underground storage potentials. b) Source of surplus water in basin. c) Inter basin transfer of resources for MAR- Managed Aquifer Recharge. d) Ground water quality surveillance. Projection & warning: Alarming decline in annual water availability in most parts of Gujarat to 400 m 3 / capita for 2020. (Water level to minimum for scares condition is 2000 m 3 /capita/year) Flood in Tapti around Surat spill on banks of river Tapti flooding sq.kms even with releases of 2 - 3 lakhs, can be harvested to by recharging aquifers. SEARCH OF NEW SOURCE FOR URBAN WATER SHORTAGE, 27/03/2009

4.  Facts & Data available: Ukai will have less inflow in next decade Tapti Basin: Total Ground Water Recharge Potential: 633.83 MCM / year Usable Ground Water Recharge: 507.10 MCM / year Usable Ground Water Recharge Withdrawal: 168.65 MCM / year Balance of Ground Water: 338.45 MCM / year (Source: G.W.S.S.B., Gandhinagar) SEARCH OF NEW SOURCE FOR URBAN WATER SHORTAGE, 27/03/2009

5. Saline Land Growth: 1 lakh hectare / year (Source: Bureau of Soil Survey & Use) 1960 - 6.2 % Kharland, 1989 - 15.8 % Present - 27.17 % Salinity within 2 km belt on coastline: 3500 ppm (not suitable for irrigation & other uses) Surat District’s saline water area: Bardoli, Choryasi, Kamrej, Mahuva, Olpad, Palsana, Valod, Vyara Saurastra: Year 1957 to 2000 average annual rainfall: 250 – 380 mm Year 2001 rainfall: 455 mm SEARCH OF NEW SOURCE FOR URBAN WATER SHORTAGE, 27/03/2009

6.  Conservation of Resources for Survival: Source: Only flood water for South Gujarat & Narmada Canal for Central Gujarat Conservation of Flood:  No storm drains for discharge to saline water i.e. river Tapti, Kim, Mindhola in lower reaches  Network to intercept storm to pond (Flood Detention Reservoir) on Kahrland on coast (Combined coastal protection / highway)  Recharge by bores in R.L. (-) 3 to (-) 15 m by wells / bores seepage to river ponds & weir storage. SEARCH OF NEW SOURCE FOR URBAN WATER SHORTAGE, 27/03/2009 Plate – 1 shows schematic diagram for Flood Water Conservation Scheme Plate – 2 shows the Land Reclamation for Slum Rehabilitation

7. Sketch showing the sectional details for proposed Integrated planning with Coastal Highway & Flood Detention Reservoir SEA RIVER TAPI CITY F.D.R. H.T.L.(+) 5.5 m L.T.L. 0.0 m + 8.0 m + 13.0 m + 9.5 m H.F.L.+ 12.0m 0.0 m Spill/ Road/ River Front Coastal Highway RIVER Front Development Storm drain below road Surface drain To Sena, Tena Creek & Kim River Plate shows flood, spills, barrel direct drain to act as storm drains interceptor, surface drain network to divert flood water to major khadies redeveloped, Tena, Sena, Kim, Mindhola. + 7.0 m PLATE- 1 Ballon Spill way Recharging

8. + 5.5 m Sea (-) 10.0 m + 8.0 m + 5.5 m +2.0 m (-) 4.0 mW.T. KHAR LAND ROADROAD SEASEA LAND, +6.5 WATER +5.5 Desalination Excavation Lagoon Soil F.A. reclaiming Land…25 Million SQM Store & Recharge Water up to 100+20 million CM PLATE- 2 MULTIPURPOSE PROJECT TO MAKE OPTIMIZATION OF WATER. ROAD GREEN BELT COASTAL HIGHWAY CITY

9. Flood Detention Reservoir with Ballon dam spillway: Coastal Area of Hajira, Olpad. - Tena Sena Creek & Kim River Coastal Area at Mouth of - Mindhola River SEARCH OF NEW SOURCE FOR URBAN WATER SHORTAGE, 27/03/2009

10. Flood Detention Reservoir - Mindhola River SEARCH OF NEW SOURCE FOR URBAN WATER SHORTAGE, 27/03/2009

11. Linking of Village Ponds (reserved) for no source villages Pond River Tapti FDRFDR FDR Pond SEARCH OF NEW SOURCE FOR URBAN WATER SHORTAGE, 27/03/2009

12. NH-8. Proposed Coastal Highway Evacuation for Hajira in Disaster Proposed Coastal Highway with Flood Detention Reservoir SEARCH OF NEW SOURCE FOR URBAN WATER SHORTAGE, 27/03/2009

13. Water Resources Day Resolution: Disperse flood to wider area, Drain to FDR – Recharge aquifer & Conserve for future Source of usable water. (DDRCS)

14. SEARCH OF NEW SOURCE FOR URBAN WATER SHORTAGE, 27/03/2009 ACKNOWLEDGEMENT Thanks to The Organizers The Director, SVNIT CWC Ravin Tailor

15. THANK YOU