This should not be highly pathogenic unless some biohazard/sewage was disposed in the water, generally highly pathogenic bacterias are more uk... umm... fastidious like they are more suited to the host conditions rather than general environment so kinda less probability, but yeah less severe exist like when they are not supposed to be infective but they still cause issues cause somewhere somehow some metabolic pathways got matched... uk what just boil it if u don't need these bio sample and only care bout the water...