Lead-Safe Wisconsin: Lead Inspector Study Guide

• Read DHS’s work practice standards and checklists for lead inspections in Lead-Safe Wisconsin: Resources for Lead Investigators.
  • Scroll down to Lead investigation tools, and click on report templates, self-review checklists, and regulatory updates.

Building Components and Systems

• Windows, doors, and stairs are common sources of lead-based paint.
• Read about the building components, specifically windows, that contain lead dust in Chapter 5.
  • Go to E. Dust Sampling or start reading on page 5-40 (3. Selection of Locations within Rooms). As you read, review the basic plan for taking dust wipe samples, including selection of rooms and components.
• Read about Window Systems (11-37), Door Systems (11-40), and Stair Systems (11-41) in Chapter 11. View illustrations of a stair system with various parts labeled on page 11-42.
• Study the components of windows (page 12-19), doors (12-20), and stairs (12-30) in Chapter 12.

Testing Combinations

• Read about Lead-based Paint Inspections on pages 7-5 to 7-7 in Chapter 7.
  • To learn about testing combinations, read step #8 on page 7-6.
  • It is not recommended to only take paint chip samples for an inspection, but there are cases when it is necessary. Read about these cases on pages 7-13 to 7-14.
  • The standard for what constitutes lead-based paint can be found in the How to Do It section on page 7-5. Read #3.
  • Read the definition of lead-based paint on page 7-16.

Painted Surfaces Inventory

• Read the definition of testing combinations on page 7-17 in Chapter 7. Take note of which factors cannot be used to determine paint history or the presence of lead-based paint
  • Then, examine and study the examples of interior and exterior building component types that should be tested in Table 7.1 on page 7-18.
  • Review the various items to record in an inventory during a lead-based paint inspection.
    • Read about Inspections in Single-Family Housing on page 7-19.
    • Review the six parts in this section, starting with determining the number of room equivalents, on pages 7-20 to 7-21.

Multi-Family

• Read the overview of how to conduct a lead inspection in a multi-family unit in Chapter 7.
  • Read about inspections in multi-family housing starting on page 7-36.
  • Read Statistical Confidence in Dwelling Unit Sampling on page 7-36, focusing on how to select units based on pre-1960 and 1960 to 1977 housing units.
  • Read page 7-37 about the selection of housing units, common areas, and exterior site areas
  • Analyze Table 7.3 on pages 7-38 to 7-39, which shows the number of units to be tested based on the dates of building construction.
  • Read the two important steps about how the units should be selected on the bottom of page 7-37 and the top of page 7-40
  • Read how to select specific units on page 7-40 using the random number formula. In the middle of the page, it lists some formulas to determine which unit to randomly select. Read the example about 50 units in the development, specifically how a random unit is selected. Take the Module 3 Quiz to do a practice problem
  • Become familiar with, and learn how to use, Table 7.3 (Number of Units to be Tested in Multi-family Building or Developments) on page 7-38 and 7-39. Take the Module 3 Quiz to do a practice problem
  • Read Classification of XRF Results in Multi-family Housing on pages 7-41 to 7-42. Pay special attention to the part about testing combinations and if the XRF readings come back positive or negative. Also, find out the minimum number of components that must be tested depending on whether previous test samples were positive or negative
  • On page 7-43, review HUD’s Multi-family Decision Flowchart (Figure 7.3).
    • This chart will help you determine whether lead-based paint (LBP) is present, or not present, development-wide.
    • On page 7-42, read the paragraph before the flowchart, which also explains how it is determined if LBP is present in the building.
    • As you read this description and analyze the chart, pay attention to the %’s and which decision would be made (Yes / No) based on those percentages.

XRF Analyzers

• Read about Xray Florescent Devices (XRFs) when performing lead-based paint inspections in C. Other Sources of Information on pages 7-10 to 7-13 in Chapter 7.
  • On page 7-13, read a general overview of when to use an XRF Performance Characteristic Sheet.
  • Read about substrate correction when interpreting XRF readings on page 7-26. On page 7-27, read when substrate correction is NOT required, and if it is, read 2. Substrate Correction Procedure on pages 7-27 to 7-28.
  • Learn about how many readings you need to take in each room using an XRF Analyzer on page 7-22.
  • Read about the Number and Location of XRF Readings on page 7-22.
  • Read the definitions of Building Component Types on page 7-16 and Testing Combination on page 7-17. Review Table 7.2 about distinct testing combinations.
  • Review about calibration checks on an XRF on page 7-25 to 7-26.
• Read DHS's requirements for XRF Devices:
  • Read the information about what to consider before buying an XRF, applying for certification, and which agency licenses and maintains registration of XRFs in Wisconsin.
  • Under the section Before buying an XRF, review the Performance Characteristic Sheet (PCS) to find a list of XRF models. Examine the various sections and information on the sheet.

Paint Chip Sampling

• Get a general overview of paint chip sample collection on page 5-51 in Chapter 5.
  • In the section titled Paint Chip Sample Collection and Analysis. Read up to page 5-54.
  • Read about paint testing methods on pages 5-51 to 5-54. Read the methods used to identify lead-based paint during inspections and risk assessments, and which surfaces should be tested for lead-based paint.
• Read about laboratory testing for lead in paint-chip samples on page 7-45 to 7-50 in Chapter 7. including number of samples to take, the size, and laboratory analysis methods. You can also read how to collect paint chip samples, and what to do before, during, and after collecting the paint chip samples.
  • Read page 7-59 about how to do inspections in multi-family housing. Find out which forms to include when you send paint chip samples to the laboratory.

Analyzing Results

• Read how to do a lead-based paint inspection on page 7-5 in Chapter 7.
  • Read step #3, specifically the HUD/EPA standard for lead-based paint.
  • Read on page 7-22 about the locations where you need to take XRF Readings, including which surfaces to avoid testing. Read about substrate correction procedures on page 7-27. In the first paragraph, read about some of the reasons why high readings may occur when using an XRF Analyzer.
  • Read how results should be reported to the lab in Units of Measure on page 7-47.

Quiz

• Quiz Yourself on Module 3