Public Tender N° 4/2025 - 3Rd Call - Ex-2025-00146051-Neu-Desp#Srh-Contracting Of Laboratory Services For The Analytical Determination Of Various Physical-Chemical And Biological Parameters Destined For The Undersecretariat Of Water Resources Various Technical-Professional Services - Contracting Of Laboratory Services For The Analytical Determination Of Various Physical-Chemical And Biological Parameters Of Samples Corresponding To The Control Programs And Sampling, Which Complete The Annual Planning Of The Provincial Directorate Of Evaluation And Inspection Water Of The Undersecretariat Of Water Resources Dependent On The Ministry Of Energy And Natural Resources.