Section 35.325 - Child with an elevated blood lead level(a) If a child less than 6 years of age living in a federally assisted dwelling unit has an elevated blood lead level, the owner shall immediately conduct an environmental investigation. Interim controls of identified lead-based paint hazards shall be conducted in accordance with § 35.1330 .(b)Other assisted dwelling units in the property.(1) If the environmental investigation conducted under paragraph (a) of this section identifies lead-based paint hazards, the owner shall conduct a risk assessment for other assisted dwelling units covered by this subpart in which a child under age 6 resides or is expected to reside on the date interim controls are complete, and for the common areas servicing those units. The risk assessments shall be conducted within 30 calendar days after receipt of the environmental investigation report on the index unit if there are 20 or fewer such units, or 60 calendar days for risk assessments if there are more than 20 such units. If the risk assessment identifies lead-based paint hazards, the owner shall control identified hazards in accordance with § 35.1325 or § 35.1330 in those units and common areas within 30 calendar days, or within 90 calendar days if more than 20 units have lead-based paint hazards such that the control work would disturb painted surfaces that total more than the de minimis threshold of § 35.1350(d) .(2) The requirements for other assisted dwelling units covered by paragraph (b)(1) of this section do not apply if:(i) The owner both conducted a risk assessment of the other assisted dwelling units covered by paragraph (b)(1), and the common areas servicing those units, and conducted reduction of identified lead-based paint hazards in accordance with § 35.1325 or § 35.1330 between the date the child's blood was last sampled and the date the owner received the notification of the elevated blood lead level; or(ii) The owner provides the Federal agency documentation of compliance with evaluation, notification, lead disclosure, ongoing lead-based paint maintenance, and lead-based paint management requirements under this part throughout the 12 months preceding the date the owner received the environmental investigation report.(c) Interim controls are complete when clearance is achieved in accordance with § 35.1340 .(d) The Federal agency shall establish a timetable for completing, and providing documentation to the agency on the environmental investigation, risk assessments, and lead-based paint hazard reduction when a child is identified as having an elevated blood lead level. 82 FR 4167 , Jan. 13, 2017