d. The department may order or cause any multiple dwelling or any part
of its premises, or any excavation, structure, sewer, plumbing, pipe,
passage, matter or thing in or about such premises to be purified,
cleansed, disinfected, removed, altered, repaired or improved.
e. Whenever the department shall certify that a nuisance exists in a
multiple dwelling, or any part of its premises, which constitutes a
serious fire hazard or is a serious threat to life, health or safety,
the department may issue a written order to the owner directing the
removal or remedying of such nuisance in the manner and within the time
specified in such order which shall be not less than twenty-one days
after the service thereof on the owner in the manner specified in
subdivision one of section three hundred twenty-six of this chapter
except that if the department shall determine that the condition is such
that a delay of twenty-one days in remedying or removing the same may
cause irreparable harm to the building or constitutes an imminent danger
to its occupants, or the occupants of adjoining property or the general
public, then the time specified for such remedy or removal may be less
than twenty-one days.