* Wastewter Treatment plant of 14000 m3/day discharge . * Extention - phase 1 of the plant to increase the discharge from 14000 to 109000 m3/day . * D.I. pipelines 150 mm : 1800 mm, 3.085 km length. * Extention - phase 2 of the plant to Increase the discharge from 109000 to 188000 m3/day .