HAZWOPER 24 case studies
HAZWOPER 24 · Put your knowledge to work in context.
The HAZWOPER 24 credential is a 24-hour hazardous waste operations and emergency response training certificate for workers who need a level of hazardous-materials training below the full 40-hour general-site worker course. It is typically chosen by people whose jobs involve limited, defined exposure to hazardous substances - for example, occasional site visitors, support and clerical staff who enter controlled areas, workers on sites that are fully characterized and controlled by others, or emergency responders who handle defensive spill containment rather than aggressive entry. The HAZWOPER 24 case studies are 5 cases and about 3,534 words.
1A State Voluntary Cleanup, a 24-Hour Laborer, and a Hissing Drum
A 12-acre former electroplating shop is being cleaned up under a state voluntary remediation agreement, not a Superfund listing. A Phase II investigation found 38 unlabeled and corroded drums behind the plating building, chromium and nickel in surface soil, and trichloroethylene at 850 µg/L in groundwater.
750 words, about 4 min2Organophosphate Splash at a Farm-Supply Warehouse
At a farm-supply warehouse, a 38-year-old mixer is transferring chlorpyrifos 4E from a 250-gallon nurse tank into 55-gallon drums. A hose clamp fails, and a stream of concentrate soaks his forearms and soaks through both nitrile gloves; he estimates the exposure lasted about 40 seconds before he shut off the pump.
675 words, about 3 min3Torn Suit, Backwards Runoff, and a Storm Drain at a Dry Cleaner
The exclusion zone at an abandoned dry cleaner is defined by survey tape strung between rebar stakes. The contamination reduction zone has a three-step decon line: a wash with a garden sprayer, a rinse with a second sprayer, and a clean change area under a pop-up tent.
728 words, about 4 min4Level C Proposed for a Black Liquor Sump
A paper mill hires a contractor to clean a 12-foot-deep sump that collects black liquor and wash water. The sump has a fixed ladder and a 24-inch access hatch.
691 words, about 3 min5Forklift-Punctured Toluene Drum at 02:15
At 02:15 at a household hazardous waste transfer station, a forklift operator misjudges a pallet and punctures a 55-gallon drum of toluene. Roughly 30 of the 55 gallons pour onto the concrete pad and spread toward a storm drain about 25 feet away.
690 words, about 3 min