CONTENTS
Estimated Water Demand and Availability in River Tapi near Surat City Year of
Estimate Water Demand
in MLD Water Availability in MLD
Normal Months Peak Summer
2011 900
2445 1712
2026 1797
2445 1712
2041 2332
2445 1712
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 Condiion 2. Possible impacts due to urbanizaion, poverty aspiraional growth, climate change
3. Projected waste water generated 4. Waste water= water supply
1. PRESENT CONDITION
Surat lies in an almost lat terrain which poses a challenge to sewarage and storm water drainage. The SMC over the years has laid more than 1150 km of sewerage network with more than 38,500 manholes and has a
total of 8 sewage treatment plant total capacity = 642.50 MLD and 32 sewage pumping staions total capacity = 1163 MLD. Earlier, 97 of the city area was covered by piped networks 108.91 sq.km area of old city for
water supply and sewerage. However, with the expansion 2006 the total area of the city increased to 326sq. km, only about 86 of the present populaion is served with sewerage network. This has led to the remaining
domesic grey water and sewage generated from peri-urban areas discharged into the Tapi River. This polluion has led to algae blooms, proliferaion of underwater Hydrilla and surface variety of water Hyacinth. SMC is
currently invesing heavily in expanding the sewage network in the newly urbanised areas and has already upgraded exising sewage treatment plants to provide for secondary treatment process.
2. POSSIBLE IMPACTS Impacts of Urbanizaion-
- Increasing urbanizaion will mean more discharge of sewage, necessitaing the need for addiional sewage infrastructure. Moreover, if the present trend of discharging sewage and domesic water from
the peri-urban areas coninues, there will be addiional polluion loads on the Tapi River. This combined with the polluion from the industries could lead to further loss of aquaic habitats and more instances of
disease and water treatment costs.
Impacts of Climate change
- In the event of loods, the storm water runof mixes with sewage and is released into the river, leading to river polluion. Moreover, stagnant water could lead to potenial vector borne and water borne diseases
like malaria, dengue and gastro-enteriis. An extensive and independent storm water drainage system could prevent this eventuality.
3. PROJECTED WASTE WATER GENERATED- POTENTIAL
