| http://www.w3.org/ns/prov#value | - In Colorado, work cleaning up leaking tanks and other spills is paid for through the Petroleum Storage Tank Fund, a $36 million annual pool funded by a $100 surcharge collected from gas distributors on every tanker truck that rolls to resupply stations.Advertisement Though they say the enforcement is tough, petroleum-industry leaders praise Colorado's approach as fair and consistent.
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