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Worst-case release scenarios for salt domes

Would all of the regulated substances stored in a salt dome be assumed to be released in the worst-case scenario?

The worst case scenario for salt domes would be examined in a manner similar to that for underground storage tanks. Reservoirs or vessels sufficiently buried underground are passively mitigated or prevented from failing catastrophically. You should evaluate the failure of piping connected to underground storage for the worst-case and alternative scenarios.