POSSIBLE IMPACTS PRESENT SOURCES

CONTENTS IMPACT I PHYSICAL ENVIRONMENTAL I SOCIAL I ECONOMIC CHANGE ASSESSMENT STRATEGY PHYSICAL ENVIRONMENTAL SOCIAL ECONOMIC Water- Water supply sanitaion loods Landuse planning Solid Waste Transport Public Health Social Cohesion Equity Insituional Energy Domesic lifestyle Industry Loss Esimaion- - Gross value added - Capital

2. POSSIBLE IMPACTS

CONTENTS IMPACT I PHYSICAL ENVIRONMENTAL I SOCIAL I ECONOMIC CHANGE ASSESSMENT STRATEGY WATER- Water supply. SanitaionWaste water. Flood Management I LANDUSE PLANNING I WASTE I COMMUNICATION 1. Present sources 2. Present need vs supply 3. Possible impacts due to urbanizaion, poverty aspiraional growth, climate change 4. projected need vs projected suply

1. PRESENT SOURCES

The water needs of Surat are being managed by The Surat Municipal Corporaion. The major source of water supply is the perennial river Tapi. The water supply network was commissioned in the year 1898 in Surat. Over the decades, the city has invested in the water supply, and now has a well-managed system. The River Tapi originates from Madhya Pradesh and passes through Surat City via the Ukai Dam. This dam was constructed in 1972 in the upstream of Surat City at about 100 Km from Surat. The purpose of this dam includes irrigaion, Hydro-power and parial lood control. The low of the river, down-stream of Ukai dam and Kakrapar weir, is now being controlled by Gujarat Electricity BoardWater Resources Development authoriies. There has been a drasic reducion in the river lows. The river currently lows as a small stream on the opposite side of the old water works of Surat City due to the reducion in low. In addiion, the silt deposiion around the iniltraion wells and radial collecing wells, which has been increasing year ater year, reduces the percolaion of water and well yields. This phenomena is afecing the water supply to the Surat City. As stop gap arrangement, temporary bund of sandbags were being constructed every year ater monsoon. However, during monsoon, the bunds would get washed away creaing water crisis in Surat City. To overcome these problems and to rejuvenate the exising sources at Head Works at Varachha and Sarthana SMC, in associaion with the major industrial establishments, constructed a Weir cum Causeway across the Tapi River near Singanpore. This weir has improved the water supply for Surat City by providing a standing pool of freshwater. It has also prevented the ingress of idal water and driting silt entering iniltraion well area during high ides. The Singanpore weir is owned and operated by the SMC. The minimum low of 2,446mld 1,000 cusecs is being made available by state water resources department, except in the months of May June. During these months only about 1,712 mld 700 cusecs is available Water Security – A Sector Study Report, SMC 2009. However, this water is being allocated to Industries of Hazira, in addiion to of the allocaion to SMC 725 mld.

2. PRESENT NEED VS. SUPPLY