France – Feasibility study, advisory service, analysis – Services de définition de l'aire d'alimentation de captages et suivi des procédures administratives d'instauration des périmètres de protection

Lot No. 1 involves establishing the catchment area for the water intakes and carrying out the technical and administrative phases leading to the publication by the prefecture of the public utility declaration decrees for the HIIS 1 and HIIS 2 wells, with the establishment of protection perimeters. Optional Batch No. 1 involves assisting in the implementation of a Territorial Action Plan, by catchment area, aimed at preserving the alluvial aquifer, reducing chemical products and uniting local actors. Optional Batch No. 2 involves short-term tracing (radial convergent) in order to contribute to the understanding of the aquifer's behaviour in relation to the intakes. Lot No. 2 involves the analysis of groundwater from the 2 catchment areas. The firm batch concerns sampling and RP-type analyses (analysis programme carried out at the source, for groundwater); from well P2 at HIIS 1 and well P4 at HIIS 2 (sampling points from the ARS network, the former point P2 and the current point P4). The optional batch concerns sampling and RP-type analyses; HIIS 1: well P1 and well P3; HIIS 2: well P5, well P6 and well P7 (not monitored by the ARS).