États-Unis (1) Centre (1) Density (1) Colonies (1) Specimens (1) Water utilities (1) Restrooms (1) Enterobacter cloacae (1) Enterobacter (1) Securities industry (1) Waterworks (1) Groundwater (1) Water (1) Values (1) Toilets (1) Temperature (1) Technologists (1) Securities (1) Schizomycetes (1) Samples (Commerce) (1) Runoff (1) Pseudomonas fluorescens (1) Pseudomonas (1) Mixing (1) Licenses (1) Hydrogen-ion concentration (1) Glass (1) Evidence (1) Engineering (1) Drinking water (1)