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WA UST Site Assessor Exam Questions and Answers (latest Update 2024)
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WA UST Site Assessor Exam Questions and Answers (latest Update 2024)
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WA UST Site Assessor Exam Questions and Answers (latest Update 2024)What is the hold time for soil and preserved GW GRO samples? - Correct Answer ✅14 days
Is an ICC certification needed to install an AST? - Correct Answer ✅No
Flammability limits of gasoline - Correct Answer ✅1.4 to 7.6%
How many days do you have from a tank closure to report/provide the UST checklist to ECY? - Correct Answer ✅30 days
MTCA Method A lead CUL, soil - Correct Answer ✅250 mg/kg
MTCA Method A lead CUL, GW - Correct Answer ✅15 ug/L
Is the vadose zone saturated or unsaturated? - Correct Answer ✅Unsaturated WA UST Site Assessor Exam Questions and Answers (latest Update 2024)
List in order of most mobile to least mobile: Bunker C, heating
oil, diesel, gasoline - Correct Answer ✅Gasoline, diesel, heating oil, Bunker C
Is oxygenated gasoline more or less likely to dissolve in water? - Correct Answer ✅More likely; fuel additives like MTBE are more soluble than gasoline
Where to sample on dispenser? - Correct Answer ✅2 feet below where the piping enters the UST
Where to sample along piping? - Correct Answer ✅Every 50
linear feet and along joints/elbows
How many GW samples are needed after decommissioning if a release to GW is confirmed, and where relative to the tank? - Correct Answer ✅3; 1 upgradient, 2 downgradient
What vapor is an FID used to measure? - Correct Answer ✅Methane
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