1 March 18, Bridging the 4 th and the 5 th World Water Forum (Great actions for big challenges) Bridging the 4 th and the 5 th World Water Forum (Great actions for big challenges) José Luis Luege Tamargo Director General National Water Commission of MEXICO Istanbul, Turkey 5 th World Water Forum

LAGO DE ZUMPANGO LAGO DE XALTOCAN LAGO XOCHIMILCO LAGO CHALCO LAGO DE TEXCOCO 2 SAN MATEO SAN JOAQUIN TEPOTZOTLAN CUAUTITLAN ATIZAPAN SAN JAVIER TLALNEPANTLA DE LOS REMEDIOS TACUBA EL SORDO MAGDALENA MIXCOAC BECERRA TLALMANALCO COATEPEC CHAPINGO SAN BERNARDINO TEXCOCO SAN JUAN TEOTIHUACAN SAN MIGUEL TEPEYAC COXCACOACO DE LOS JARDINES PAPALOTLA XALAPANGO AMECA SAN BUENAVENTURA TACUBAYA

3 Growth of Mexico City Previous lake Actual urban area

4 Great water works since Aztec times Albarradon de Nezahualcoyotl (1449) Albarradon de Ahuizotl o San Lázaro (1499) Tenochtitlan was founded in the year 1325 Texcoco lake Xochimilco lake Chalco lake

5 The Nochistongo cut channel Great Drainage Channel

6 The Deep Sewerage System: the Central Outfall Tunnel

7 Water supply to Mexico City Water requirements Supplied water Overexplotation Cutzamala System starts operation Lerma System starts operation

8 Aquifers of the Valley of Mexico Allocated volume Annual recharge

9 Aquifers´ overexploitation 7 m

The Angel of Independence of Mexico City Aquifers´ overexploitation

11 Great Drainage Channel Gravity operated Slope of 19 cm per km Slope has been reversed in some parts of the Channel Great Canal pumping station Sales Canal pumping station

Nabor Carrillo Lake Central Outfall Great Drainage Channel Mexico City‘s boundary 12 Capacity of the Drainage System Capacity m3/s Capacity m3/s Capacity m3/s Great Drainage Channel Western Outfall Tunnel 30 Central Outfall Tunnel Total Inhabitants (Millions) 1019

13 SEWERAGE PROGRAM INVESTMENTS Sewerage public works 2007 – 2012 (Million US Dollars ) Eastern Outfall Tunnel (TEO) TEO´s catchment and control flood gates 20 Pumping Plant “Casa Colorada Profunda” 55 “Río de los Remedios” Tunnel´s catchment 10 Rectification of the of the Valley´s General Drain 45 Pumping Plant “Caracol” 70 Total 1.400

14 Construction of 6 Municipal Wastewater Treatment Plants

15 SANITATION PROGRAM INVESTMENTS Project Capacity (m 3 /s) Investment (Million US Dollars) Municipal Wastewater Treatment Plants (MWWTP) MWWTP Guadalupe 0,5 20 MWWTP Berriozábal 2,0 100 MWWTP Nextlalpan 9,0 300 MWWTP s Zumpango 1,5 55 ( 2,5 )* 45 MWWTP Atotonilco 23,0 690 MWWTP Vaso El Cristo 4,0 215 Gasoelectric Plants 175 Total 40,

16 SANITATION PROGRAM INVESTMENTS Project Capacity (m 3 /s) Investment (Million US dollars) New sources of potable water supply that substitute wells Water Treatment Plant Guadalupe Dam 2,0 53 Water Treatment Plant Tula Aquifer 5,0 325 Water Treatment Plant Zumpango Reservoir 2,5 60 Water Treatment Plant Madín Dam 0,5 10 Cutzamala´s System Modernization 3,0 352 Total 15,0 800

17 TOTAL INVESTMENTS Concept Million US dollars Six wastewater treatment plants Sewerage public works Water works, including new water supply sources 800 Total 3.800

18 Final words

20 Thank you very much, José Luis Luege Tamargo General Director National Water Commission of MEXICO