In April 2014, the SAT Ansó presented a Prior Consultation Document in the Aragonese Institute of Environmental Management (INAGA) with the aim of initiating the procedures for the transformation into irrigated land 244 hectares in La Sarda area of the municipal district of Pedrola (Zaragoza). After the efforts made by SAT Ansó with the owners of the area, the company Agrícolas Villahermosa S.A. (AVISA) joined the project. With the purchase by SAT Ansó of new plots and the area contributed by AVISA, the perimeter to be transformed reached 853,22 hectares when the preliminary draft about the Environmental Impact study was drawn up.

The purpose of this project is to design and assess the common actions required to transform into irrigated land the 838.4 hectares in the sites of La Sarda and El Terrero. The project report includes works that are necessary in order to capture and impulse water from the Imperial Canal to a regulation reservoir that will be built in the area of La Sarda, on the edge of the two farms:

Pumping station - Impulsion - Reservoir of 80,000 m³ - Electrification. Low Voltage - Control and automation

Due to the importance of the affected services in the route of the impulsion pipeline, its layout is carefully analyzed. The length of the impulsion pipeline would be 3,034 meters, from the catchment to the reservoir, and the layout is determined by the crossing points of the existing roads. The choice of the PVC-O material is due, among other reasons, to its resistance to corrosion, its ease of assembly and to the fact of being a more economical pipe. The most suitable diameter is calculated and the investment and energy costs are taken into account, being the diameter 800 mm designated for this action.

The different offers of the several types of pipes (cast iron, helical steel, Oriented PVC, reinforced concrete) are analyzed and the option with the best quality/price ratio is chosen. The most economical diameter is considered, bearing in mind the energy cost and the cost of the investment for three diameters, the 800 mm diameter resulting in the lowest overall cost.

The installed pipe is one of the most important elements of the network, therefore, the importance in the choice of the material to be projected.

At this point, it is very important to take into account the quality of the material, its durability and of course, the contribution to the environment. The PVC-O TOM^® pipes are presented as an excellent alternative as a material in irrigation networks thanks to their operating efficiency and low maintenance costs, due to their high physical-mechanical and chemical properties.