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Interview > Lead Inspector Assessor > Flashcards

Lead Inspector Assessor Flashcards

1
Q

lead symbol and latin name

A

Pb, plumbum (liquid silver)

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2
Q

Why was lead used

A

durable, keeps colors bright, blocks radiation

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3
Q

Dr. Alice Hamilton

A

occupational health physician first wrote about hazards of lead 1913

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4
Q

LEAD BASED PAINT

A

≥ 1.0 mg/cm2 (XRF)
≥ 0.5% by weight (chip sampling)
≥ 5,000 ppm

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5
Q

LEAD CONTAMINATED DUST

A

≥ 40 ug/ft2 - interior floors
≥ 250 ug/ft2 - interior horizontal surfaces
≥ 400 ug/ft2 - exterior horizontal surfaces

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6
Q

Lead based paint still used today for

A

Industrial use, usually coatings for bridges etc.

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7
Q

Consumer Product Safety Commission did what in 1978?

A

restricted lead in coatings to < 600 ppm, it later decreased more in 2008

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8
Q

Lead based paint was still used through what year

A
  1. Banned in 78 but still sold for about 2 years
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9
Q

LEAD CONTAMINATED SOIL

A

≥ 400 ppm child’s play area

≥ 1,000 ppm all other areas

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10
Q

Tetraethyl Lead

A

was used in gasoline, anti knocking agent.

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11
Q

Clean Air Act

A

banned sale of leaded fuel for all uses, 1996

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12
Q

When was leaded gasoline phased out?

A

1970s in a 20 year phase out

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13
Q

Drinking Water Lead

A

15 ppb

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14
Q

1 exposure for occupational workers

A

lead fumes

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15
Q

1 exposure for children

A

lead dust, oral route

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16
Q

Chaca Chaca

A

mexican candy with lead in wrapper

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17
Q

where is lead found on cans

A

in seams, usually cans produced out of country

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18
Q

Kohl

A

middle eastern eye liner with lead

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19
Q

1g = ___ ug

A

1,000,000 ug

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20
Q

ug/m3 is used for what

A

air

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21
Q

ug/ft2 used for what

A

surfaces (dust wipe sampling)

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22
Q

ug/dL used for what

A

BLL

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23
Q

mg/cm2 used for what

A

lead based paint, chip sampling

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24
Q

mg/kg used for

A

soil

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25
Q

ppm used for

A

usually soil or lead based paint

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26
Q

CDC BLL level of concern for children

A

10 ug/dL

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27
Q

lead is absorbed through _____ and gradually stored in ___

A

lungs/stomach, bone/tissue

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28
Q

children/pregnant women absorb ___% lead

adults absorb __%

A

50

10-15

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29
Q

lead poisoning symptoms

A

headache, abdo pain, anemia, learning difficulties, kidney disease, heart disease, speech problems, high blood pressure, wrist drop

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30
Q

half life blood lead

half life bone lead

A

28-36 days

>30 years

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31
Q

blue black line on gums

A

anemia due to lead poisoning, burton’s line

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32
Q

how does lead affect blood

A

makes it difficult for blood to carry oxygen, CNS affects

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33
Q

chelation therapy

A

to remove lead poisoning. also removes electrolytes. done by physician.

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34
Q

Title x

A

1992, Residential Lead-Based Paint Hazard Reduction - required federal agencies to establish rules about working with lead.

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35
Q

Two step plan of Title X

A

evaluate hazards, reduce hazards through interim controls or abatement

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36
Q

Target housing

A

housing constructed prior to 1978

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37
Q

Disclosure Rule

A

1996, landlords must disclose lead presence

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38
Q

RRP

A

Renovation, Repair and Painting Rule, 2008 workers must be trained

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39
Q

HUD Guidelines

A

are incorporated by regulation (CDPH Title 17). They provide how to identify lead-based paint hazards and how to control them

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40
Q

Ambient Air Quality Lead Standard

A

1.5 ug/m3 based on 30-day average

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41
Q

Lead hazard evaluation

A

onsite investigation of lead based paint or lead hazards for PUBLIC and RESIDENTIAL buildings

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42
Q

Reporting for lead hazard evaluation

A

CDPH form 8552 within 30 days of completion

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43
Q

How long does I/A retain 8552 form

A

3 years

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44
Q

What are the reports/forms/documents for a completed lead hazard evaluation

A

CDPH 8552, site map, foundation diagram, summary of each test method, device and sampling procedure, description of testing and sampling locations, results of lab analysis

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45
Q

Define abatement

A

an activity designed to reduce/eliminate lead hazards or lead-based paint for PUBLIC or RESIDENTIAL buildings

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46
Q

permanent vs. temporary/interim abatement

A

permanent - >20 years

temp < 20 years

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47
Q

form to report abatement

A

CDPH 8551

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48
Q

who can do permanent abatement

A

CDPH supervisor, workers must be CDPH certified also

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49
Q

clearance inspection

A

is required for permanent abatement

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50
Q

who can do a clearance inspection

A

CDPH I/A or CDPH monitor

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51
Q

When is 8551 submitted

A

5 days prior to abatement activity

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52
Q

does interim abatement require 8551

A

yes, but not done by certified individuals

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53
Q

Where does an 8551 need to be posted

A

all work area entrances until abatement has been completed. for permanent abatement until clearance inspection completed.

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54
Q

senate bill 460

A

requires employers to have an IIPP: injury and illness prevention program

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55
Q

lead Action Level and what it requires

A

30 ug/m3 over 8-hour TWA. requires: medical surveillance, training, hand washing faiclities

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56
Q

PEL for 8-hr and requirements

A

50 ug/m3 8hr TWA. surveillance, training, hand washing, respirators, showers, change areas, eating areas, PPE clothings, warning signs, etc.

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57
Q

how to calculate PEL for other work hours. what is PEL for 10 hr

A

400/# hours, 40 ug/m3 for 10 hour

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58
Q

trigger tasks 1

A

manual demo, scraping, sanding
heat gun
power tool with dust collection
spray painting with lead paint

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59
Q

trigger tasks 2

A 
using lead mortar
lead burning
manual demo (more serious)
rivet busting
power tool without dust collection
cleanup using dry abrasives
abrasive blasting enclosure and removal
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60
Q

trigger tasks 3 (4)

A

abrasive blasting
welding
cutting
torch burning

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61
Q

when is medical surveillance required

A

for any employee occupationally exposed on any day to lead at or above 30 ug/m3 on an 8-hour twa

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62
Q

initial medical surveillance

A

one-time BLL and ZPP

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63
Q

ongoing medical surveillance is required when

A

over 30 ug/m3 for more than 30 days in 12 months

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64
Q

biological monitoring frequency for <40 ug/dL

A

q 2 months for 6 months, then 1 q 6 mo

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65
Q

biological monitoring frequency for 40 to <50 ug/dL

A

q 2 months until 2 consecutive BLL < 40 ug/dL
medical exam
information on removal requirements

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66
Q

medical removal

A

when 2 BLL within two weeks ≥ 50 ug/dL.

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67
Q

BLL monitoring if medically removed

A

monthly until 2 consecutive BLL equal to or less than 40 ug/dL

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68
Q

how long are medical records maintained by employer

A

30 years after employee leaves

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69
Q

lead notification to calOSHA is required when

A

24 hours prior

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70
Q

exceptions to CalOSHA reporting

A

if ongoing work then once a year
not required if:
1. less than 100 ft2 or 100 LF
2. only torch cutting/welding less than 1 hr on any shifti
3. not lead based paint by definition (less than 0.5%, 5,000 ppm or 1.0 mg/cm2)

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71
Q

5 examples of engineering controls and safe work practices to avoid lead exposure

A 
contain work area
clean change area
handwashing facilities
showers
break area
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72
Q

should you work on paint removal with it being wet or dry

A

always wet mist areas to prevent lead dusts

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73
Q

OSHA 300 log

A

an annual summary of on the job related employee injuries and illnesses. Can be requested by employee

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74
Q

when can employer rely on earlier exposure assessment?

A

if monitoring results are on hand from similar assessment taken within 12 months

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75
Q

how often does an employer need to assess exposure to lead when employee is above action level but at or below PEL

A

every 6 months

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76
Q

how often does employer need to assess exposure if employee is above PEL

A

once every quarter

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77
Q

lead exposure assessment results must be given to employee within ___ days

A

5 days

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78
Q

flow rate for lead exposure assessment

A

1-4 liter per minute (LPM)

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79
Q

What is an MCEF 0.8 micro used for

A

filter for lead exposure assessment.

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80
Q

filter loading rate for lead exposure assessments

A

2mg total of dust

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81
Q

how often to check the pump during lead exposure assesment

A

every 2 hours

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82
Q

calibration methods of sampling pumps (for lead expsure assessment)

A

bubbler or rotameter. bubbler is preferred and considered primary method.

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83
Q

when does an employee wear a respirator

A

above PEL, when requested by employee

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84
Q

respirators for trigger 1, trigger 2, trigger 3

A
  1. above PEL (50 ug/m3) but not more than 10 x PEL (500 ug/m3) HALF FACE APR
  2. above 10x PEL (500 ug/m3) but not more than 50x PEL (2,500 ug/m3) FULL FACE APR
  3. above 50x PEL (2,500 ug/m3) PAPR
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85
Q

half face and full face aprs are __________ pressure respirators

A

negative

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86
Q

papr and sar are _____ pressure respirators

A

positive

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87
Q

sar standards for

A

supplied air respirator

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88
Q

what air grade is used for SARs

A

grade D (same as SCUBA)

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89
Q

3 requirements of wearing respirator

A

medical approval
training
fit testing

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90
Q

how often are cartridges changes out on respirators

A

in accordance with your respiratory protection program (usually when breathing becomes difficult)

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91
Q

qualitative vs quantitative fit testing

A

qualitative - voluntary response to challenge agent

quantitative - measures challenge agent leakage

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92
Q

quantitivate fit testing is required if exposure is _____ x PEL

A

100

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93
Q

APF

A

assigned protection factor (minimum anticipated protection by properly functioning respirator class)

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94
Q

SWPF

A

simulated workplace protection factor - surrogate measure of workplace protection provided by a respirator

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95
Q

WPF

A

workplace protection factor - measure of protection provided by respirator of worker

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96
Q

MUC

A

maximum use concentration (max amount of lead a respirator can protect you from)

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97
Q

PEL X PF =

A

MUC

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98
Q

protection factor of:

  1. half face apr
  2. full face apr
  3. papr, sar
A
  1. 10
  2. 50
  3. 1,000
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99
Q

HEPA

A

high efficiency particulate air, filter. 0.3 micron, 99,97%

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100
Q

what is most universal type of HEPA

A

p100

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101
Q

combination cartridge’s which two types of contaminants

A

particulates AND gases/vapors

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102
Q

type of air required for SAR

A

grade D (same as scuba)

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103
Q

fit testing is required how often

A

annually

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104
Q

two types of user pressure checks

A

positive pressure check - close off exhalation and breath out. mask should remain sealed

negative pressure check - close off inhalation and breath in. mask should collapse

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105
Q

7 steps in cleaning respirator

A
  1. remove filter
  2. wash in warm water with mild detergent
  3. rinse in warm water
  4. disinfectant, 50 ppm chlorine or 50 ppm iodine or equivalent
  5. rinse in warm water
  6. hand dried with lint-free or air dry
  7. reassemble
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106
Q

When is PPE clothing required

A

when PEL is exceeded, or performing trigger tasks. must be supplied at no cost

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107
Q

how often is PPE clothing provided

A

weekly unless over 200 ug/m3 (then daily)

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108
Q

HSC Section 105280 does what

A

gives status authority for environmental investigation

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109
Q

laboratory cerification for lead analysis

A

NLLAP

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110
Q

CCR, Title 17 covers what

A
  1. accreditation/certification of lead workers
  2. work practices for lead (public and residential buildings)
  3. RRP requirements which apply to renovations, remodeling, painting
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111
Q

CCR, Title 8, Section 1532.1 covers what

A

CalOSHA construction safety orders for lead: defines PEL for lead, respiratory protection requirements, housekeeping, medical surveillance, training, communication hazards, job notification

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112
Q

CCR, Title 8, Section 5144

A

CalOSHA respiratory protection Program

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113
Q

CCR, Title 8, Section 1509

A

Construction Safety Orders, Injury and Illness Prevention Program (IIPP)

114
Q

Title X outlined two types of ways to evaluate lead hazards in a residential building

A
  1. risk assessment
  2. paint inspection

or combination of both

115
Q

lead hazard screen assessment. what is it. what requirements must be met for one to be conducted

A

an evaluation less detailed than a full risk assessment.

building must be:

  1. in good condition
  2. probability of finding lead based paint hazards is low
116
Q

steps of lead hazard SCREEN risk assessment

A
  1. tour of dwelling to determine building condition and is eligible for screen risk assessment instead of full risk assessment
  2. collect paint samples of any paint that is in poor condition (or measure with XRF)
  3. two composite dust samples (floor and window troughs) of 4 locations: child’s play area, child’s bedroom, main entryway and one other location

no water or air sampling is done.

117
Q

paint quality rating for exterior components with large surface areas: intact, fair and poor

A

intact: entire surface intact
fair: ≤ 10 ft2
poor: > 10 ft2

118
Q

paint quality rating for interior components, large surface areas (walls/floors/doors/ceilings)
intact, fair and poor

A

intact: entire surface intact
fair: ≤ 2 ft2
poor: > 2 ft2

119
Q

paint quality rating for interior and exterior small surface areas (window sills, baseboards)
intact, fair, poor

A

intact: fully intact
fair: ≤ 10%
poor > 10%

120
Q

paint quality rating for exterior components with large surface areas: intact, fair and poor

A

intact: entire surface intact
fair: ≤ 10 ft2
poor: > 10 ft2

121
Q

paint quality rating for interior components, large surface areas (walls/floors/doors/ceilings)
intact, fair and poor

A

intact: entire surface intact
fair: ≤ 2 ft2
poor: > 2 ft2

122
Q

paint quality rating for interior and exterior small surface areas (window sills, baseboards)
intact, fair, poor

A

intact: fully intact
fair: ≤ 10%
poor > 10%

123
Q

intact vs fair vs poor surfaces

A

intact - monitor to ensure they don’t become hazardous
fair - should be repaired but not yet considered a hazard
poor - considered a hazard and should be corrected

124
Q

three types of paint deterioration

A

surface, bulk and layered

125
Q

surface deterioration

A

chalking (find powder), worn/chipped (friction or mechanical), mildew

126
Q

three steps of a risk assessment

A

visual inspection
testing deteriorated paint and paint on surfaces
testing dust from floors and windows

127
Q

layered deterioration

A

blistering, peeling, sclaing

128
Q

how to determine condition of friction and impact surfaces

A

operate three to four windows and doors

129
Q

three steps of a risk assessment

A

visual inspection
testing deteriorated paint and paint on surfaces
testing dust from floors and windows

130
Q

difference in final report for risk inspection vs paint inspection

A

for risk inspection the report identifies remedies, paint inspection just shows test results.

131
Q

does paint inspection test for soil or dust?

A

no

132
Q

composite sampling

A

can be used for dust wipe samples of common components in different rooms. You can do up to 4 dust wipes in a composite sample and there is a minimum of 4.

133
Q

what is a spike sample

A

known positive dust wipe sample to be submitted for analysis as a control

134
Q

where are dust samples collected from during risk assessment

A

floors, window sills, window troughs/wells

135
Q

composite sampling

A

can be used for dust wipe samples of common components in different rooms. You can do up to 4 dust wipes in a composite sample.

136
Q

dust sampling for community buildings/day cares/recreational or other child occupied spaces

A

for up to 2,000 sq ft
2 samples high traffic floors
1 sample window sill
1 sample window trough.

for spaces larger than 2,000 sq ft collect 1 extra sample for floors and windows for each increment of 2,000 sq feet round up

137
Q

of dust wipe samples if single surface dust sampling is conducted

A

6-8

138
Q

dust sampling in common areas of multifamily housing

A

take an additional two samples from entry area floor and one from first floor landing.

139
Q

dust sampling for community buildings/day cares/recreational or other child occupied spaces

A

for up to 2,000 sq ft
2 samples high traffic floors
1 sample window sill
1 sample window trough.

for spaces larger than 2,000 sq ft collect 1 extra sample for floors and windows for each increment of 2,000 sq feet round up

140
Q

in risk assessment should paint sampling or dust sampling be done first?

A

dust sampling

141
Q

what are the two methods of deteriorated paint analysis

A

XRF or paint chip analysis by laboratory

142
Q

can you use an XRF on peeling or chipping paint

A

no, only intact

143
Q

how many paint chip samples are usually analyzed for risk assessment

A

usually 5 to represent similar components

144
Q

composite paint chip sampling

A

cumulative sample of 1 square inch of paint samples. Result is to be divided by number of sub samples.

145
Q

threshold for retesting of composite paint chip samples

A

if 0.2 mg/cm2 then no lead present. if more than 0.2 mg/cm2 then must collect separately and test.

146
Q

how close to hold a heat gun to substrate for paint chip sampling

A

no closer than 6”

147
Q

size of paint chip sampling

A

4 square inches (2 x 2 or 1 x 4)

148
Q

what kind of container are dust wipes samples placed in

A

plastic tube (no baggies)

149
Q

how close to hold a heat gun to substrate for paint chip sampling

A

no closer than 6”

150
Q

size of paint chip sampling

A

no more than 2-4 square inches

151
Q

what needs to be reported with sample to get paint chip analysis results in mg/cm2

A

the exact dimensions of the sample

152
Q

can you use thick diaper wipes from dust collection

A

no

153
Q

how are dust wipe samples reported (units)

A

ug/ft2

154
Q

how many spike samples for dust wipe sampling

A

one per every 50 field samples.

155
Q

can you use little ones diaper wipes for dust wipe sampling

A

no

156
Q

soil sampling from play area

A

at least 5 but no more than 10 sub samples in a composite sample in x shaped grid

157
Q

how many spike samples for dust wipe sampling

A

one per every 50 field samples.

158
Q

how to collect soil samples

A

use a coring tool 1/2 inch deep

159
Q

soil sampling from play area

A

at least 5 but no more than 10 sub samples in a composite sample in x shaped grid

160
Q

lead levels measured on wipe samples depend on what two factors

A
  1. amount of dust on surface

2. concentration of lead in that dust

161
Q

what should wipe sample results be after abatement for floors, sills, troughs/wells

A

less than:
40 ug/ft2
250 ug/ft2
400 ug/ft2

162
Q

what range % must a spike dust wipe sample fall

A

80-120%

163
Q

where does one get a dust spike sample wipe

A

laboratory

164
Q

which sampling is more accurate, dust wipe or paint chip

A

paint chip

165
Q

ALARA

A

as low as reasonably achieabable

166
Q

three steps in limiting radiation

A

time, distance, shielding

167
Q

What is NIST SRM

A

quality control forXRF
national institute of standards and technology

standard reference material

168
Q

XRF reading units

A

mg/cm2

169
Q

soil test units

A

ppm, g/kg or ug/g

170
Q

What is NIST SRM

A

quality control forXRF
national institute of standards and technology

standard reference material

171
Q

what are wet chemical field test kits

A

spot tests that show cehmical change to red/pink the paint reacts with sodium rhodizonate

lead check, hybrivet, d-lead

172
Q

soil test units

A

ppm, g/kg or ug/g

173
Q

risk assessments for fewer than 5 dwellings which are not similar

A

need to assess all individually

174
Q

how many subsamples per composite soil sample

A

3-10

175
Q

number of soils samples needed

A

minimum of two composes per dwelling or building samples. one from play area and one from bare soil areas in front or backyard

176
Q

how far apart should soil subsamples be from one another

A

2-6 feet apart

177
Q

Side A for single family and multifamily

A

single family - street side

multifamily - main entrance side

178
Q

what are the three components of testing combinations for paint inspections

A

room equivalent
building component
substrate

179
Q

does a paint inspection include the exterior

A

yes. the sides are not considered seperate rooms unless evidence of different paint history

180
Q

Side A for single family and multifamily

A

single family - street side

multifamily - main entrance side

181
Q

calibration frequency of XRF

A

3 before starting inspection
3 every 4 hours or when work has been completed for the day whichever is more frequent.

anytime instrument is turned off/at lunch etc.

182
Q

How many XRF readings for each testing combination

A

one for each equivalent except walls (4 readings for walls per room equivalent)

183
Q

how to classify XRF results comparing to PCS

A

below range = negative
within range = inconclusive
above range = positive

184
Q

0.5% = ____ ppm

A

5,000 ppm

185
Q

ppm is same as ____ and ____

A

mg/kg, mg/L, ug/g

186
Q

ppb is same as ___ and ____

A

ug/kg, ug/L

187
Q

0.5% = ____ ppm

A

5,000 ppm

188
Q

when is aggregate testing used in a paint inspection

A

for multi family homes. use flow chart to determine results

189
Q

what is AAS

A

atomic absorption spectroscopy is most common method of lead analysis in paint chips

190
Q

two elements used for XRF’s and their half lifes

A

cobatls 57 - 270 days

cadmium 109 - 464 days

191
Q

when is aggregate testing used in a paint inspection

A

for multi family homes. use flow chart to determine results

192
Q

what is AAS

A

atomic absorption spectroscopy is most common method of lead analysis in paint chips

193
Q

heat gun operating temperatures on low and high settings.

A

low 500-600 F

high up to 1100F (that is the max)

194
Q

ladder safety factor for placement

A

1 foot out for every 4 feet up

195
Q

three elements of confined space

A

large enough to enter
restricted entry/exit
not designed for continuous occupancy

196
Q

three steps of confined space entry

A

recognition
testing,evaluation,monitoring
rescue

197
Q

ladder safety factor for placement

A

1 foot out for every 4 feet up

198
Q

cleaning steps after abatement

A
  1. hepa, remove poly from vertical surfaces and wash all veritcal surfaces with lead cleaner, remove floor poly and clean floors, hepa vacuum all surfaces again
  2. painting/sealing if needed
  3. after 24 hours hepa, clean then hepa all surfaces again
199
Q

lead particles usually fall within ____ feet of its source

A

6 feet

200
Q

what should be done with ventilation system during lead abatement

A

shut it off and seal it to prevent dusts

201
Q

three steps of cleanup after abatement

A

hepa vacuum, wipe down, hepa vacuum

202
Q

steps of existing lead work area

A

hepa vacuum your suit and remove booties
step into decon area
take off ppe clothing inside out
move to wash area of decon and wash face with resipirator on then remove and wash face

203
Q

___ mil poly should be used for lead work

A

6 mil

204
Q

how far to extend poly for outside abatement

A

10 feet

205
Q

do not perform abatement work if average winds are more than

A

10-20 mph

206
Q

what are types of encapsulants

A

coatings that can last over 20 years

207
Q

4 methods of abatement

A

replacement - removal and replacement
enclosure - covering/sealing off lead painted surface
encapsulation - coating the lead painted surface
removal - remove but don’t replace

REERp

208
Q

underlayment over floors, installing tile or brick over walls, installing wood paneling or dry wall over walls i

is a type of what abatement

A

enclosure

209
Q

how long to wait after abatement before final cleanup

A

1 hour

210
Q

4 soil abatement methods

A

removal and replacement
cultivation/rototilling (plant grass or lay bark etc.)
soil treatment and replacement
paving with concrete/asphalt

211
Q

are open flame burning, uncontained hydroblasting, heat guns above 1100F, and machine blasting without HEPA allowed?

A

no

212
Q

how long to wait after abatement before final cleanup

A

1 hour

213
Q

what is TTLC

A

total threshold limit concentration ( a california test)

214
Q

<50 mg/kg on TTLC

A

non hazardous waste, check class 2 or 3 landfill or if further testing needed

215
Q

eq to or greater than 1000 mg/kg on TTLC

A

hazardous waste, class 1 landfill (kettleman city) TCLP required

216
Q

what is STLC

A

soluble threshold limit concentration a california stat test. some landfills require.

217
Q

less than 5 mg/L on STLC

A

non hazardous no treatment required before landfill

218
Q

equal to or greater than 5 mg/L on STLC

A

hazardous

219
Q

what happens if TTLC results are 50 mg/kg or more but less than 1,000 mg/kg

A

need to do either stlc or tclp check landfill

220
Q

equal to or greater than 5 mg/L on TCLP

A

hazardous

221
Q

what is a TCLP

A

a federal test

toxicity characterization leaching procedure

222
Q

what happens if TTLC results are 50 mg/kg or more but less than 1,000 mg/kg

A

need to do either stlc or tclp check landfill

223
Q

who can do a clearance inspection

A

i/a or project monitor

224
Q

what are dust clearance levels

A

<40 ug/ft2 interior floor
<250 ug/ft2 interior horizontal surfaces
<400 ug/ft2 exterior floor and horizontal surfaces

225
Q

soil clearance levels

A

<400 ppm childs play

<1000 ppm all other areas

226
Q

how many dust samples for clearance inspection

A

use chart. depends on type of abatement and controls used

227
Q

how many single family houses or similar units should get a clearance inspection of 20 or fewer

A

all

228
Q

should XRF testing be done for clearance inspection

A

no it’s not recommended. dust wipe on floors, sills, troghs only

229
Q

how soon after cleanup can clearance inspection occur

A

no sooner than 1 hour

230
Q

soil sampling for clearance inspection

A

should be done only if tested initially. do composite sampling of play area and all other areas

231
Q

should XRF testing be done for clearance inspection

A

no it’s not recommended. dust wipe on floors, sills, troghs only

232
Q

lead in drinking water level

A

15 ppb

233
Q

what are the three laboratory methods allowed for paint chp

A

AAS
ASV
PSV

234
Q

large furniture that can’t be removed can be

A

sealed with single layer of plastic

235
Q

before it rains abatement work should

A

be stopped and cleaned up

236
Q

plastic required for interior window replacement

A

1 layer 5 feet out

237
Q

are hazardous waste generators required to clean plastic prior to disposal

A

no

238
Q

which characteristic would lead be hazardous waste

A

toxicity

239
Q

concentrated lead waste includes

A

lead paint chips, hepa vacuum debris, other hazardous waste

240
Q

are ahzardous waste generators required to clean plastic prior to disposal

A

no

241
Q

large quantity generator can store waste up to

A

90 days

242
Q

what is flashpoint of ignitable waste

A

140F

243
Q

cond exemp small quant generate must produce less than

A

100 kg per month

244
Q

large quanitity generator can store waste up to

A

90 days

245
Q

according to title 17 lead certified workers and supervisors are required for what:

a permanent abatement
b interim control
c risk assesment
d clearance

A

a permanent abatement

246
Q

which of the following is not required when filing form 8551:
a submit to cdph 5 days before work started
b a copy is posted…
c. must be submitted even for interim abatement
d. must be submitted by supervisor

A

d. must be submitted by supervisor

247
Q

difference between law and regulation

A

law is written by legislature

regulation is promulgated by the enforcement agency

248
Q

if the air exposure is between action level and PEL then continue monitoring air exposure every

A

6 months

249
Q 
a house hta tis being permanentely abated has several intact lead based paint doors above 15 mg/cm2 these doors may be managed as:
a. non haz waste
b haz waste
c run tclp to confirm
d i won't say anything
A

c. run tclp

250
Q

asbestos vs lead which is more critical in consideration of removal and which for disposal

A

asbestos is more sensitive for removal

lead should be considered primary indicator for disposal

251
Q

does an inspection survey need to be included in an abatement plan

A

no.

252
Q

HUD CHAPTERS

1-15

A 
1 INTRO
2 PLANNING
3 RISK ASSESSMENT
4 NONE
5 LEAD INSPECTION
8 RESIDENT PROTECTION
9 NONE
10 WASTE
11 INTERIM CONTROL
12 ABATEMENT
13 ENCAPSULATION
14 CLEANING
15 CLEARANCE
253
Q

MINERAL COMPOSITE MINING LEAD

A

Galena

254
Q

ZPP is what

A

zinc protoporphyrin

255
Q

three types of liability

A

contractual
tort
regulatory

256
Q

contractual liability

A

contractor can be liable if there is a breach in contract

257
Q

what are liquidated damages

A

designated damages which can be claimed if certain aspects of contract are not met, for example delay of job

258
Q

tort liability

A

occurs when there is no physical contract. three elements must be present

  1. there must be a duty or rule of conduct
  2. there must be a breach of the conduct/duty
  3. the breach must have caused injury

example hot coffee from mcD that burned customer

259
Q

what is regulatory liability

A

noncompliance with federal, state or local regulations by error or omission

260
Q

does a contractor need worker’s compensation insurance

A

yes

261
Q

who does comprehensive insurance cover

A

covers injuries to another person caused by accident

262
Q

what are the two types of insurance policies

A

occurrence based (covers claim if the occurrence occurred during the time the insurance is effective)

claims based (insurance covers any claim put in during the insurance effective period regardless of when the event actually occurred)

263
Q

which type of insurance is more expensive

A

occurrence based

264
Q

what are the three types of bonds

A

bid
payment
performance

265
Q

what is a bid bond

A

a promise to pay some percentage of cost of job if a bidder gets a job after the lowest bidder backs out

266
Q

what is a payment bond

A

accompanies a lead contractor to pay for subcontractors if they are not paid by the property owner

267
Q

what is a performance bond

A

a promise to complete a job. protects usually a school for example if contractors are unable to complete a job

268
Q

interim controls should only be used when

A

surfaces have intact paint and are structurally sound

269
Q

what device is used for wet scraping

A

scraper with hepa vacuum

270
Q

hepa vacuum method for wall to wall carpets

A

2 minutes per 10 ft2 side to side then 2 minutes per 10ft2 up and down

271
Q

what is a beater bar

A

device to be used on hepa vacuum when cleaning area rugs

272
Q

air exchanges per hour in negative pressure enclosure for abrasive blasting

A

10

273
Q

newel is a component of what

A

stairs

274
Q

balusters are what

A

stair spindle

275
Q

methylene chloride

A

not allowed in chemical paint removers

276
Q

needle gun is bested used on which substrate

A

metal

277
Q

how often do you label a lead surface before enclosing

A

every two feet

278
Q

what are the 5 prohibited lead paint abatement methods

A 
open flame burning or torching
mchine sanding/grinding without hepa
uncontained hydroblasting
abrasive blasting/sandblasting without hepa
heat gun above 1100F
279
Q

what is a j channel used for

A

to seal off edge of drywall

280
Q

which type of abatement should have all seams and edges sealed

A

enclosures

281
Q

wipe test area most likely to fail in clearance

A

troughs

282
Q

smallest size dust particle visible to naked eye

A

50 um

Interview (2 decks)

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