If, because given installations were sited in the area, floods were likely to cause particular environmental problems such as water contamination, that risk should be mapped from the outset.
Ja minēto iekārtu izvietošanas dēļ šajos apgabalos plūdi var izraisīt īpašas vides problēmas, piemēram, ūdens piesārņojumu, šāds risks jāattēlo kartē jau no paša sākuma.