EPA Lead Risk Assessor Certification Exam

EPA Lead Risk Assessor Certification Exam ug/g microgram per gram ug/ft2 microgram per foot square (dust sampling) mg/cm2 milligrams per centimeter squared (XRF) ug/dL microgram per deci-liter ug/m3 microgram per deci-liter (quantity in blood) 1% 10,000 ppm Allowed quantity of lead in dry surface paint when testing with XRF. 1.0 mg/cm2 Allowed quantity of lead in dry surface paint when testing with paint chip 5000 ppm Allowed quantity of lead in dry surface paint by weight .5% = 5000ppm Lead Quantities for Dust Clearance from floors/carpet 40 ug/ft2 Lead Quantities for Dust Clearance from furniture 40 ug/ft2 Lead Quantities for Dust Clearance from window sills 250 ug/ft2 Lead Quantities for Dust Clearance from window wells 400 ug/ft2 Lead Quantities for Dust Clearance from outside concrete 800 ug/ft2 Lead Quantities for Soil Clearance in contact areas 400 ppm Lead Quantities for Soil Clearance in non-contact areas 1200 ppm Allowable lead quantity in water 15 ppb/liter, or 15 mgL Lead blood level of concern for children 5 ug/dL NIOSH Lead blood level of concern 25 ug/dL OSHA employee lead blood level of concern 40 ug/dL OSHA medical removal lead blood level 50 ug/d? Lead Paint 1978 level allowed .06%; 600 ppm Current level lead allowed in paint .009%; 90 ppm Lead Paint allowed in all other consumer products .01%; 100 ppm Hazardous Waste Toxic Characteristic Leaching Procedure (TCLP) 5 ppm The use of lead based paint exceeding .06% was banned in 1978 for residential housing. T/F the concentration of lead paint in deteriorating housing must be greater than 1 mg/cm2 by XRF to pose a threat to workers doing renovation or abatement practices. False Title X does not apply to; bridges and steel structure; hotels and motels rented less than 100 days and commercial complexes. What is the primary objective of a Lead Paint Risk Assessment? to discover lead hazards What is the primary objective of a Lead Paint Inspection? to discover lead paint TSCA Title IV, Section 402/404 Rule directed EPA to; develop training and certification requirements for lead professionals. Individuals performing inspections and risk assessments for lead hazards must be certified through the EPA accredited program T/F EPA's debris rule advises contractors that lead waste generated during renovation and remodeling of residential housing is now waived from RCRA's rule and can be disposed of as municipal waste True T/F OSHA established the standard for the worker's permissible exposure limit, action limit, and exposure time while abating lead True T/F Section 1012/1013 within Title X are sections referring to HUD rules True Y/N Are lead inspections mandatory in pre 1978 housing? No A lead inspection is a surface by surface investigation for lead based paint. Two most common ways for lead to enter the body? ingestion and inhalation What body system is most affected by lead poisoning? the nervous system The set of measures designed to permanently eliminate lead-based paint hazards for at least 20 years? abatement T/F there is no established time frame for abatement of lead based paint in housing. However, all lead-based paint hazards must be abated from a target house when the project is funded in the amount of $25,000 or more through HUD True T/F The most recent ruling by the CDC is that a child is suffering a health risk at just 5 ug/dL of lead in the blood but the risk of death can occur from 80 ug/dL or higher. True What abatement methods can be used if lead concentrations in soil are above 5000 ppm where children are playing? soil removal, or containing soil under concrete or asphalt After reducing lead hazards in a property who must perform clearance testing? certified inspector or risk assesor T/F Clearance test are performed by taking XRF readings in any 4 rooms of the house where the abatement or renovations took place. False T/F In pre 1978 housing, where a child with an elevated blood lead level has been living, visual assessments alone can be used to determine if lead hazards have to be abated from the property. False How does an inspection differ from a risk assessment? an inspection identifies the presence of lead paint; an assessment evaluates the hazards from lead. T/F It is wise for inspectors to be trained in respiratory protection standards but it is not mandatory for EPA lead inspectors True What should an assessor wear at a minimum to perform inspection/risk assessment of a pre 1978 home? booties and rubber gloves Y/N An abatement project has been scheduled in a 1950's house. Is a risk assessment required by Title X law before work begins No T/F The standard procedure for taking a dust sample must include these steps: layout the sample area; measure 1/10 to 1 square foot; prepare the tube; place gloves on; properly wipe the sample area in a "S" motion with an approved wipe; place folded wipe in a sampling tube; clean up sampling materials. True Why are dust samples taken? to identify lead paint hazards; to see if the contractor cleaned up properly after renovation; to identify a dust hazard from lead that may not be paint After a final clearance wipe down, a clearance test can begin _________ after the clean-up. one hour T/F No one should operate the XRF analyzer until they have received radiation safety training True What does a performance characteristic sheet for an XRF instrument determine? XRF specified range; results that are positive, negative, and inconclusive; calibration check tolerances A testing combination is a unique combination of room equivalents, building component types, or substrates An abbreviated test can be performed when the owner agrees; all components tested are the same in each room equivalent; the component tested is positive for lead based paint in the first five rooms tested. T/F An XRF calibration check should be performed before an inspection begins; after the inspection is completed, or at least every 24 hours, whichever occurs first. False Dust wipe media must meet what criteria? ASTM E 1792 laboratory criteria A soil sample from around the drip line of a house resulted in 530 ppm. As a risk assessor you must explain to the owner what should be done with the soil. soil where children have contact must be abated; interim controls can be used to eliminate the present hazard. What is the procedure for clean up of lead dust after abatement or renovation? HEPA vacuum, wet clean, HEPA vacuum again What should a risk assessor do prior to conducting a risk assessment on a house? gather information on the property T/F The inspector also tests soil and dust for lead contamination as part of a clearance test True What is Title X Residential Lead Hazard Reduction Act of the Community Development and Housing Act of 1992 HUD estimates how many homes contain lead-based paint? 64 million lead-based paint paint, varnish, shellac, or other coating on surfaces that contain 1.0 mg/cm2 or more of lead, or 0.5% or more lead by weight lead-based paint hazard any condition that causes exposure to lead contaminated dust, lead contaminated soil, or lead contaminated paint that is deteriorated or present on accessible surfaces, friction surfaces, or impact surfaces. lead-based paint inspection a surface by surface investigation to determine the presence of lead based paint. deteriorated paint any interior or exterior paint that is peeling, chipping, chalking, or cracking, or is located on an interior or exterior surface or fixture that is damaged or deteriorated accessible surface surface that protrudes from the surrounding area to the extent that a child can chew the surface and is within three feet of the floor or ground friction surface an interior or exterior surface that is subject to abrasion or friction (certain window, floor, and stair surfaces) impact surface