Wa Ust Site Assessor Exam Questions And Answers Graded A

Is an ICC certification needed to install an AST? {Ans: No}Lower Explosive Limit (LEL) {Ans: the lowest concentration of vapor in air that is explosive}Is respiratory protection included under "Level D" PPE? {Ans: No}How many days do you have from a tank closure to report/provide the UST checklist to ECY? {Ans: 30 days}If a site assessor confirms a release, how long do they have to notify ECY? {Ans: 24 hours}What is included under "Level D" PPE? {Ans: Steel toe boots, cotton coveralls, hardhat, eye protection}SM {Ans: Silty sand - silty sands and sand-silt mixtures}Which common VOC at petroleum sites is known to cause cancer? {Ans: Benzene}List in order of most mobile to least mobile: Bunker C, heating oil, diesel, gasoline {Ans: Gasoline, diesel, heating oil, Bunker C}Is corrosion protection required during temporary tank closure? {Ans: Yes}Pt {Ans: Highly organic soil - peat, muck, etc.}Where to sample along piping? {Ans: Every 50 linear feet and along joints/elbows}Is the vadose zone saturated or unsaturated? {Ans: Unsaturated}What conditions might impede a PID? {Ans: Moisture/humidity, dust, transformers, power lines}What is the preferred sample container for GRO GW samples? {Ans: