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WA UST Site Assessor Exam | 100% Correct Answers | Verified | Latest 2024 Version
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WA UST Site Assessor Exam | 100% Correct Answers | Verified | Latest 2024 Version
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WA UST Site Assessor Exam | 100% Correct Answers | Verified | Latest 2024 Version What is the hold time for soil and preserved GW GRO samples? - ✔✔14 days Is an ICC certification needed to install an AST? - ✔✔No Flammability limits of gasoline - ✔✔1.4 to 7.6% How many days do you have from a tank closure to report/provide the UST checklist to ECY? - ✔✔30 days MTCA Method A lead CUL, soil - ✔✔250 mg/kg MTCA Method A lead CUL, GW - ✔✔15 ug/L Is the vadose zone saturated or unsaturated? - ✔✔Unsaturated List in order of most mobile to least mobile: Bunker C, heating oil, diesel, gasoline - ✔✔Gasoline, diesel, heating oil, Bunker C Is oxygenated gasoline more or less likely to dissolve in water? - ✔✔More likely; fuel additives like MTBE are more soluble than gasoline Where to sample on dispenser? - ✔✔2 feet below where the piping enters the UST Where to sample along piping? - ✔✔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? - ✔✔3; 1 upgradient, 2 downgradient What vapor is an FID used to measure? - ✔✔Methane What is a PID measuring? - ✔✔Mixture of all volatiles What conditions might impede a PID? - ✔✔Moisture/humidity, dust, transformers, power lines What UST capacity does not require a site assessment at closure? - ✔✔Less than 110 gallons Purpose of a site check - ✔✔To investigate a UST site for the presence of a release when evidence indicated that a release may have occurred Purpose of a site assessment - ✔✔To investigate a UST site at the time of closure or change -in-service to determine if a release has occurred Site check vs. site assessment - ✔✔A site check is an investigation of a UST site for a release when evidence indicates that one many have occurred; a site assessment determines if a release has occurred If a confirmed release is identified and reported within 24 hours, what is and is not required? - ✔✔A site assessment is not required; a site characterization is required What is the historical date before which a UST system may have been permanently closed or abandoned that ECY may require a site assessment? - ✔✔December 22, 1988 When should a site safety plan be developed? - ✔✔Prior to conducting the UST site assessment What is included under "Level D" PPE? - ✔✔Steel toe boots, cotton coveralls, hardhat, eye protection Is respiratory protection included under "Level D" PPE? - ✔✔No Are low PID reading sufficient data to complete a site assessment? - ✔✔No; analytical data is neededThe benefits of buying summaries with Stuvia:
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