Expansion Of The Drinking Water System And The Sewer System - Execution Of Work Improvement And Expansion Of The Sewer Service And Other Forms Of Sanitary Disposal Of Excreta In The Basic Sanitation System With The Implementation Of Latrines In The Colca Sector Of The Center Town Of Colca District. From Cotabambas Of The Prov. Of Cotabambas Dep. Apurimac