Activities. Activities:

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1 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities Activities Activities: Activity 2: Health Effects A-2 Activity 3: Hazard Recognition A-4 Activity 4: Hazard Recognition A-6 Activity 5: Physical and Chemical Properties A-9 Activity 6: Hazard Information Sources A-11 Activity 7: SDS Worksheet A-13 Participant Manual A-1

2 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities Activity 2: Health Effects You are assigned to work in a large abandoned warehouse on a brownfield site. The building is being renovated for use as a parts assembly shop. Large doors on either end of the warehouse provide natural ventilation. Using the NIOSH Pocket Guide, find the OSHA Permissible Exposure Limits (PELs), the Immediately Dangerous to Life or Health Level (IDLH) concentrations, the routes of entry, the target organs, and the symptoms of overexposure for the chemicals listed. Then, answer the questions on next page. Chemical Methylene chloride OSHA PEL IDHL Routes of Entry Target Organs Symptoms Lead Acetone Toluene Muriatic Acid (Hydrogen chloride) Toluene-2,4- diisocyanate (TDI) A-2 Participant Manual

3 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities 1. Which of these chemicals would you have the most health concerns about? Why? For which chemicals would you want to wear chemical eye protection? Participant Manual A-3

4 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities Activity 3: Hazard Recognition You are Chris Worker, a construction worker working as part of a mixed crew on a CERCLA hazardous waste site erecting an entombment chamber for 55-gallon drums. The site characterization and analysis crew has finished work. You are working for the contractor hired to clean up the site and are dressed in Level C protection (air-purifying respirators and splash suits). Soon after starting the excavation, you spotted unmarked drums buried where you were going to build the chamber. Upon closer examination, these drums are corroded and appear to be leaking. This spot was listed on the site map as having no barrels and was therefore not included in the initial site characterization and analysis. To save time and stay on schedule, your supervisor decides to go ahead and use the crew to clear these drums without any additional assessment, even though they weren t included in the original site analysis or plan. You refused to do any work with the buried drums until the contractor had the drums sampled and all the hazards identified. Your employer did this and told you not to worry. They sampled the nearest drum and found that it contained waste phosphorus trichloride. Therefore, your team still dressed in Level C protection with HEPA (High Efficiency Particulate Air) filters, could now overpack the drums and store them to one side while you continued building the concrete forms. You are still concerned and decide to use the NIOSH Pocket Guide to find some information on this chemical. 2. What is the UEL and LEL of this chemical? What is the flashpoint of this chemical? What does this mean? 3. What is the vapor pressure of this chemical? A-4 Participant Manual

5 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities 4. What are this chemical s target organs? 5. What are the routes of entry to the body? 5. What is the PEL of this chemical? What is the IDLH of this chemical? What do these numbers mean? 6. What level of protection would you want to be wearing for your job? 7. Using the above information, what concerns, if any, would you have about entering the excavation to overpack these leaking drums? Participant Manual A-5

6 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities Activity 4: Hazard Recognition You are Kim Worker, a construction worker assigned to a mixed crew on a CERCLA hazardous waste site erecting an entombment chamber for 55-gallon drums. The site characterization and analysis crew has finished their work. You are working for the contractor hired to clean up the site and are dressed in Level C protection (air-purifying respirators and splash suits). Soon after starting the excavation, you spotted unmarked drums buried where you were going to build the chamber. Upon closer examination, these drums are corroded and appear to be leaking. This spot was listed on the site map as having no barrels and was therefore not included in the initial site characterization and analysis. To save time and stay on schedule, your supervisor decides to go ahead and use your crew to clear these drums without any additional assessment, even though they weren t included in the original site analysis or plan. You refused to do any work with the buried drums until the contractor had the drums sampled and all the hazards identified. Your employer did this and told you not to worry. They sampled the nearest drum and found that it contained waste phosphorus trichloride. Therefore, your team still dressed in Level C protection with HEPA (High Efficiency Particulate Air) filters, could now overpack the drums and store them to one side while you continued building the concrete forms. You checked the NIOSH Pocket Guide and gathered information about this chemical. As you were finishing your research in the NIOSH Pocket Guide, your foreman came up to tell you that there was reason to believe that some of the barrels also contained TDI, also known as toluene-2,4-diisocyanate. You immediately returned to your Pocket Guide to get some information on this newly identified chemical. 1. What are the physical characteristics of toluene-2,4-diisocyanate A-6 Participant Manual

7 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities 2. What is the UEL and LEL of this chemical? 3. What is the flashpoint? What does this mean? 4. What is the vapor pressure of this chemical? 2. What is the PEL of this chemical? What is the IDLH concentration of this chemical? What do these numbers mean? 6. What are this chemical s target organs? 7. What are the routes of entry to the body? Participant Manual A-7

8 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities 8. What level of protection would you want to be wearing for your job? 9. Using the above information, what concerns, if any, would you have about entering the ditch to overpack these leaking drums? A-8 Participant Manual

9 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities Activity 5: Physical and Chemical Properties Knowing a compound s physical and chemical properties can help you to determine how much of a risk it will pose to people and to the environment. Look up the properties of these chemicals in the NIOSH Pocket Guide and then answer the questions below. Chemical M.W. V.P. BP Fl.P. LEL PEL Sol. Sp.Gr. Kerosene MEK TCA Ammonia 1. Which chemicals pose a fire hazard? 2. Which chemicals would mix readily with water? Which would sink in water? Which would float in water? Mix Sink Float Participant Manual A-9

10 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities 3. Remembering that 1% = 10,000 ppm, are the LELs more or less that the PELs? By about how much? 4. What chemical would get into the air (evaporate) the fastest? Which would get in the air the slowest? 5. Which chemical vapor would be most likely to rise above the site of a spill or release? (Remember, air has a M.W. of 29.5) Which chemical vapor would be most likely to settle near the site of a spill or release? (Remember, air has a M.W. of 29.5) A-10 Participant Manual

11 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities Activity 6: Hazard Information Sources Use the label on the next page to answer the following questions: 1. What is the name of the product? 2. Who makes it? 3. What is the physical hazard from this product? 4. What are the health hazards? 5. What are the target organs? 6. What are the safe handling recommendations? Participant Manual A-11

12 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities 7. What measures or controls are to be used to limit worker exposure? 8. What first aid information is given? A-12 Participant Manual

13 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities Activity 7: SDS Worksheet Use the SDS sheet provided to answer these questions. 1. What is the name of the product? 2. When was the SDS prepared? 3. Are vapors from this product heavier than air? Yes No 4. What information tells you about the fire hazards of this material? Participant Manual A-13

14 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities 5. Are NIOSH REL listed for the ingredients? Yes No If not, look them up in the NIOSH Pocket Guide 6. Does this product contain any cancer causing materials? Yes No 7. Which routes of entry are of concern? A-14 Participant Manual

15 HAZWOPER 40-Hour Hazardous Waste Worker Training Activities 8. What are some possible acute effects of overexposure? 9. What are some possible chronic effects of overexposure? 10. What types of materials will react with this product? 11. Does the SDS give you any information that would help you to know if you were being overexposed to a solvent? Without the SDS, would you know if you were exposed to carcinogens or other chronic toxins? Yes No 12. Would this material be safe to use near a kerosene heater? Yes No Participant Manual A-15

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37 HW Site Control/ Practices Activity Abandoned Storage Facility Background An abandoned waste storage building has been scheduled for clean-up and demolition. The now-vacated building was used for storage of industrial waste chemicals for several years before being abandoned in the late 1990s. Most of the firm s records were destroyed when the adjoining office building annex was burned in 2005 (suspected homeless campers ). Your firm has been hired to remove the remaining chemicals, demolish the building, and haul off all debris to help prepare the site for the city s first casino, hotel, and shopping complex. Site Characterization Located in the building are approximately 80 drums of waste. Most of the drums have been sampled and they contain: Nickel Carbonyl stored in steel 55-gallon drums; Nitric Acid Sludge stored in PVC-lined steel 55 gallon drums; and Magnesite stored in 30-gallon plastic bag-lined cardboard drums. The building suffered a partial collapse to one section because of an unusually heavy snow last winter. The building has been vandalized with many of the drums upset and other drums apparently used as fire pits. Some of the cardboard drums were used for cooking/heating fuel. Trash, pizza boxes, cans, and broken bottles litter the floor. Most of the remaining cardboard and steel drums are showing signs of extreme wear. Magnesite can be found on the floor around the bases of many cardboard drums while several steel drums can be seen weeping through badly corroded drum walls and bung hole screw-on caps.

38 Other Important Information It is early April in central Illinois. Temperatures range from a low of 45 F at night to a high of 80 F at mid-afternoon. Severe thunderstorms have blanketed the area for the past two days, but the forecast is for normal temperatures and sunshine for the next week to ten (10) days. Humidity is averaging 70% but this might lessen with the expected good weather. Westerly to northwesterly winds are blowing at around 5 mph. The Sangamon River s north bank may be in danger of flooding. The building is located in an old industrial park with a major interstate highway one mile away and a 4-lane US highway is located on the western edge of the property. Access to the abandoned waste storage building is limited to a single north/south road with access to CR 41 (also north/south). There is another north/south access road to the west, but is unfinished and it connects to an inhabited neighborhood street. The main access road is occasionally blocked for short periods of time while crews install curbing and waste water culverts on its pond side. Two grown-over demolished warehouse sites on the eastern side of the industrial park will be home to luxury condominiums. A third site will be home to a boutique shopping store-front. These structures were demolished and removed over the past several years.

39 Planning the Job 1. What additional information would you want before beginning work? 2. Are there any basic construction safety and health hazards your company ought to be concerned with? 3. Are there any chemical hazards that your company should be concerned with?

40 4. Are there possible threats of fire and/or explosion? Why or Why Not? 5. How will you prep the site for all its work activity? (Again, basic construction site setup, including work site/area access [security?] and communication in all 3 [three] control zones.) 6. How will the Superintendent of the job and the supervisors enforce healthy and safe work practices? 7. Where will the Exclusion (Hot) Zone, the Contamination Reduction (Warm) Zone, and the Support Zone be? The Contamination Reduction Corridor (Decon Line)? Draw boundaries for these zones on the map on the last page of this exercise, then transfer the information to a large sheet of paper to present to the class.

41 8. What Level(s) of PPE will be worn on this site and why? Hot Zone: Warm Zone/Decon Line: Cold Zone: 9. What will you do if an emergency occurs that requires immediate evacuation of an injured or ill Hot Zone worker?

42 Sketch the Key Elements of Your Site Control and Health & Safety Plan