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Your expose on how the Home Depot came to D.C. (“It’s Sprawl Good,” 6/7), however incisive and insightful, missed two critical points:

1. The salt dome that had been on the site was practically new when they demolished it to make way for the Home Depot. Only a few years earlier, it had been built, at considerable cost, to replace the dilapidated salt-storage facility that had been there. A new salt dome has yet to be built at the proposed new salt-storage site, in North Michigan Park, where giant tarpaulin-covered pyramids of salt sit out in the open.

2. The city got $3 million for the land it sold for the Home Depot site. But how much will a new salt dome cost? How much undepreciated value was still left in the one that was torn down? How much did it cost to relocate the other city facilities on that site?