REJUVENATION OF RIVERS CAUVERY AND JHELUM R K

REJUVENATION OF RIVERS- CAUVERY AND JHELUM R. K. SINHA, MEMBER(RIVER MANAGEMENT), CENTRAL WATER COMMISSION DEPARTMENT OF WATER RESOURCES, RIVER DEVELOPMENT & GANGA REJUVENATION, MINISTRY OF JAL SHAKTI

RIVER REJUVENATION River Rejuvenation includes: - • Action aimed at improving health of river. • Modifications of: - Ø River channels, Ø Floodplains Ø Water(Quantity & Quality) Ø Sediment • Started due to: - ØEcological considerations, ØSocial and cultural factors, ØEconomic drivers, ØNavigation ØNeed to protect infrastructure and assets from water-related risks. Ø‘Water security’. Need for River Rejuvenation : - • Degradation through Ø Pollution Ø Over-abstraction of water Ø Encroachment of Flood Plains • Affected Ø Water availability, Ø Collapse of fisheries, and Ø Flood or drought risk Ø Ground water Recharge.

COMMON MEASURES FOR RIVER REJUVENATION • • Catchment management Flow modification Stormwater management Floodplain reconnection Bank stabilization Channel reconfiguration Water quality management Instream species management • Aesthetics, recreation and education

REJUVENATION OF CAUVERY (NRCD) Objective of NRCP: Ø To reduce the pollution load in rivers(other than Ganga Basin) Ø Implementation of various pollution abatement works Ø Improving their water quality. • Presently NRCP has covered polluted stretches of 33 rivers (76 towns spread over 15 States).

POLLUTION ABATEMENT OF RIVER CAUVERY IN TAMIL NADU AND KARNATAKA (NRCD) Name of State Project Cost (in crores) STP Capacity Created (in mld) Towns of Implementation Tamil Nadu 263. 76 161. 41 Bhawani, Erode, Karur, Kumarpalayam, Kumbakunam, Mayladuthurai, Pallipalayam, Trichirappalli and Trichy Karnataka 5. 34 7. 62 Krishna Raja Nagar, Kollegal, Nanjangud and Srirangapatna

FUTURE COURSE OF ACTION (NRCD) Sl. River / No. State 1. 2. Name of River Major towns/ Cities Envisaged Total Remarks stretches & covered Sewage Estimated *Priority Capacity Cost Class/ Length (in crore) covered Cauvery, Meetur to Mettur, 936 MLD 4, 650 Capacity created Mayiladuthurai, under NRCP works is Tamil Nadu i, Bhavani, taken in account. Priority-I Komarapalayam, Length - 200 Pallipalayam, Erode, km Thanjavur, Karur, Inamkarur, Tiruchirappalli, Velur, Vairapalayam, Namakkal Population- 66. 66 Lakhs Cauvery, Ranganathithu Shringapatnam, 128 MLD 756 Capacity created Karnataka to Mysore under NRCP works is Sathyamangal taken in account. am Bridge, Population- 9. 12 Lakhs Priority –IV Length - 50 km • Some Rivers have been identified to be taken up for rejuvenation. • Polluted stretches are selected based on report published by CPCB 2015/2018. • City/Town population calculated only where > 20, 000 people residing. *Note: - Sl. No. 1 2 3 4 5 Priority BOD (in mg/L) Priority III Priority IV Priority V 30 and above 20 – 30 10 – 20 6 – 10 0– 6

WORKS OF NMCG (in Ganga Basin)* Sewage Treatment Infrastructure River Front Development River Surface Cleaning Afforestation Bio-Diversity Public Awareness Industrial Effluent Monitoring Restoration of Water Bodies *needs to be replicated in other problematic basins. Ganga Gram Aviral Dhara/e-flow (Ganga upto Unnao)

CASE STUDY: Kumudvathi River-ART OF LIVING • Kumudvathi River: Tributary of Arkavathi River, 50 kilometres from Bengaluru. • River dried up, and groundwater dropped drastically. • Traditional techniques were used. § Built boulder checks, § De-silted traditional stepwells, § Constructed recharge wells and water pools, § Planted saplings, § Spreading awareness to people residing in surrounding villages. • Rise in water table observed

REJUVENATION OF CAUVERY - ISHA FOUNDATION • ISHA Foundation has started Rejuvenation of Cauvery River. Targeted Impact • Support farmers to plant trees in Cauvery basin by adopting agroforestry. • This will have the benefit of Ø Improving soil health Ø Reviving the river and groundwater levels

FLOOD MANAGEMENT PLAN WORKS ON RIVER JHELUM • Manage the future flood threat of river Jhelum. • Comprehensive Flood threat management of river Jhelum & its tributaries. • Immediate measures: Plug all the breaches in embankments and Restoration works • Short term measures: (a)Increasing the carrying capacity of river Jhelum by dredging. (b) Increasing the carrying capacity of Flood Spill channel at Padhsahibagh

PROPOSED MEASURES FOR RIVER MANAGEMENT Catchment management Catchment Area Management- Afforestation, Check Dams Flow modification Implementation of e-flows, Restriction on abstraction of water, Construction of Storage Stormwater management Construction of ponds, wetlands, flood retention basins Floodplain reconnection Flood Plain Zoning Bank stabilization Anti-Erosion Works Water quality management STPs, ETP, Bio-remediation, Artificial Wetlands Channel reconfiguration Alteration in channel plan-form/crosssection Aesthetics, recreation and education River-front Development

THANKYOU