Restored check on the vs30 in the site collection [skip hazardlib]
Restored check on the vs30 in the site collection [skip hazardlib]


Former-commit-id: 121bf0da876bab4ca8e1bd15869241efb4f968af [formerly d79f8f24425cd7c5d90f7638169e21685a248403]
Former-commit-id: d8c51d7b098427e2568f21306186e2b335d92073
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine