The existence of a lead-based paint hazard in any multiple dwelling where a child of applicable age resides is hereby declared to constitute a condition dangerous to life and health. An owner shall take action to prevent the reasonably foreseeable occurrence of such a condition and shall expeditiously remediate such condition and any underlying defect, when such underlying defect exists, consistent with the work practices established pursuant to section 27-2056.11 of this article, except where lead-contaminated dust is present in such multiple dwelling and the department of health and mental hygiene has made a determination pursuant to paragraph six of subdivision c of section 27-2056.10 of this article.