Water and environment – Water supply, sanitation and treatment
Final Study and Technical Dossier for the «Extension and Improvement Project of drinking water and sewage systems in Nicolás de Piérola – Santa Clara Sur prolongation structure and its annexes. ATE – Vitarte District»
Client: Lima Water and Sewerage Service-SEDAPAL
Activity: Hydraulic works
Consulting cost: USD 435,977
Estimated investment: USD 33,246,202
Ate (Lima) will be provided with drinking water and sanitation
The works contemplated in the Project for drinking water and sewage systems in Nicolás de Piérola – Santa Clara Sur prolongation structure and its annexes consider a set of localized facilities (wells, control rooms, cisterns, reservoirs and drainage pumping chambers), as well as linear installations (pumping lines, headrace, overflow, water networks and sewage).
For the water supply of the structure, it was considered the implementation of 4 deep wells for groundwater exploitation whose drilling, equipment, shed building and perimetric protection fence will be done on the left bank of the Rímac river, as well as the improvement of 2 existing wells coded as P-320 and P-745, whose supply flow will continue to be allocated to the current scope of service as defined by the existing system.
The 4 new wells to be implemented, being located on the bank of the Rímac river and having a similar soil lithology, present the same constructive characteristics, the drilling depth of each well varying between 80 and 100 m with a diameter of 21 inches.
The water extracted from each of the four wells is collected in the assembly chamber, from where it is directed to the projected cistern tank CP-01, with a capacity of 600 m3. The projected drinking water system will supply the structure by gravity from the proposed reservoirs included in the project, which will be pumped in from the Projected Cistern CP-01. Depending on its function, 5 repumping supported reservoirs (RRP) and 5 reservoirs of the supported type (RAP) have been planned.