Groundwater, rainwater, and leachate associated with a single landfill were analysed to detect extended spectrum beta-lactamase (ESBL) producing and carbapenemase (CP) producing bacteria. After cultivation on three commercial selective-differential media, 240 bacterial isolates were obtained and identified by MALDI-TOF MS. Isolates from clinically relevant species were further genotyped by Enterobacterial Repetitive Intergenic Consensus (ERIC) polymerase chain reaction (PCR), tested for antibiotic susceptibility and presence of carbapenemases and ESBL enzymes. Two ESBL producing isolates and two isolates producing carbapenemases were detected in rainwater, groundwater and in leachate: Klebsiella oxytoca complex with the gene for the ESBL enzyme CTX-M-1 and the gene for the carbapenemase OXA-48, Serratia fonticola with the gene for the ESBL enzyme FONA-2 and Pseudomonas aeruginosa with gene coding VIM metallo-beta lactamase. Our study indicates that bacteria with ESBL and CP genes can be present in landfill-associated waters.