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4.0 X -RAY FLUORESCENCE SAMPLING PROCEDURES FOR LEAD -BASED PAINT <br />The LBP survey was accomplished by entering each room equivalent. A room equivalent is an <br />identifiable part of a building such as a room, office, hallway, staircase, foyer and exteriors. Sides <br />in a room indicate sample locations; sides are determined in the following order. Side A is <br />always the wall where the primary entry door is located; once side A has been determined <br />proceed in a clockwise direction for sides B, C and D. Readings were obtained from each <br />building component identified within each room equivalent by the use of a hand held X -Ray <br />Fluorescence (XRF) lead -based paint analyzer. The sample locations and condition of the paint <br />were dociunented. <br />Lead -based paint readings were collected in accordance with Chapter 7 of the HUD Guidelines <br />for Evaluation and Control of Lead -Based Paint Hazards in Housing and U.S. Environmental <br />Protection Agency (EPA) 40 CFR part 745 and Title X of the 1992 Housing and Community <br />Development Act. A total of 34 XRF readings were obtained during the survey. <br />Department of Health Services standard for the definition of LBP is 1.0 mg /cm2 or 5000 parts per <br />million, however CALOSHA standard for the definition of LBP is .7 mg /cm2 or 600 parts per <br />million and requires that all workers be properly protected when working with materials <br />containing any level of lead in accordance with Title 8 CCR Section 1532.1. <br />7 <br />19F -31 <br />