EPA Lead Risk Assessor Certification Exam A Level Based 2023

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