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Based on the provided descriptions (1-7 below), decide if the following tanks are regulated or not. You will need to look up and refer to 40 CFR 280 Subpart A to complete this assignment. For each description provided, cite the specific regulation and justify whether or not the tank is regulated in at least one to two sentences.

1. You have an underground storage tank holding 5,000 gallons of a chromic acid waste from steel plating. This waste is a hazardous waste due to elevated levels of chrome.

2. You own an underground storage tank that is 2,000 gallons in size that is utilized for farm equipment exclusively. The tank holds diesel fuel.

3. You own a 5,000 gallon underground storage tank that holds heating oil. The heating oil is used exclusively for heating a boiler for on-site use only.

4. You own a 10,000 gallon underground storage tank that is utilized for the collection of storm water from an oil water separator prior to discharge through an NPDES system.

5. You own a 4,000 gallon underground storage tank that stores gasoline for fueling vehicles as part of your fleet.

6. You own a 500 gallon underground storage tank that holds hydraulic fluid. This tanks feeds a hydraulic lift for your shop.

7. You purchased a piece of property approximately 6 months ago. You did not conduct a Phase I Environmental Site Assessment prior to purchasing the property. You begin excavating the site for construction purposes and discover two 5,000 gallon underground storage tanks. Based on a deed search in the court house you determine that the tanks were part of a filing station from 1945 to 1970. The filling station went out of business in 1971. Are you responsible for the tanks and their contents?

8. In at least two paragraphs, discuss the different types of release detection methods/systems required for USTs.