The cost to turn the former Riviera hotel-casino site into space for the Las Vegas Convention Center is increasing.
The Las Vegas Review-Journal reports contractors have discovered more ground contamination than previously thought on the site, and cleaning it all up will cost an extra $1 million.
The contamination in question was in areas where the Riviera had diesel fuel tanks for storage.
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The affected areas are to be turned into space for parking and outdoor exhibits.
