EPA Lead Inspector Latest Update Graded A+

EPA Lead Inspector Latest Update Graded A+ Lead-based paint (LBP) Any varnish, shallac, or coating that contains either- 1.0 mg/cm2 - 0.5 % by weight - 5000 ppm - Older instruments could not read accurately at 0.7, so the lead standard was updated to 1.0 Dust sample clearance values - Floors: 40 μg/ft2 10 μg/ft2 (10 μg/ft2 in NY) - Windows: 250 μg/ft2 100 μg/ft2 (50 μg/ft2 in NY) - Window wells (troughs): 400 μg/ft2 (100 μg/ft2 in NY) - Samples must be at 1 sq ft 2 sq ft (can be reduced to 1 sq ft if within 10 μg) EPA Soil Regulations - 400 ppm for playgrounds/children's areas - 1200 ppm for rest of yard - There must be 9 sq ft of soil to classify with soil testing - At 5000 ppm, MUST remediate/abate (remove & replace, paving, or bioremediation) Lab sampling technique - AAS (Atomic Absorption Spectrometry) - Sample is placed into a furnace and vaporized ... light is shone through to give a quantitative result XRF - X-ray fluorescence - Utilizes radioactive isotopes (unstable material trying to reach stability) - Cobalt-57 (half-life of 9 months) and cadmium-109 (half-life of 15 months) are the two sources (where radiation originates) - Emits gamma rays but will read X-rays (backscatters) - Ionizing radiation from the removal of electrons due to interactions with radiation LBP Hazard ANY condition that causes exposure to lead LBP inspection a surface-by-surface investigation to determine the presence of lead CPSC - Consumer Product Safety Commission - Set a lead paint standard: cannot contain 0.06% lead by weight ... updated to 0.009% - The commission banned lead-based paint in 1978 True/False: Dust sampling only done for hazard assessments True; only risk assessors take samples to determine likelihood of coming into contact with contaminants What kind of sampling must be done for inspections? Random ... repeats must be annotated then you move onto the next HUD Guidelines for abatement Must last 20 years. Includes the following procedures: - Removal - Enclosure - Replacement - Encapsulation Painting over is a temporary fix! Water standards for lead - 15 ppb under the Clean Water Act (CWA) - 5 ppb under the FDA standard (bottled water) *These are the ONLY instances where ppb is used Why was lead used so much? - Durable - Colorful - Anti-corrosive - Anti-fungal - Drying agent What does RRP do? - Renovation, Repairing, and Painting program - Provided enforcement to Title X in 2010 ... $37,500 fines for violation - Dust sampling technicians can only sample for RRP projects What must you do if a pre-1978 site is not tested? Presume lead-based paint. Where is LBP still allowed? Commercial purposes/boats What are the major industrial uses of lead? Present - Electrical batteries - Chemical additives Past - Paint additive - Gasoline additive (now in soil ... doesn't permeate quickly, so sample TOP portions (12 in)) - Solder/pipes