Assertion: reservoir's foot | /r/HasProperty | 23,000 m2
Facets:
Source sentences:
text: The cut-off wall, which consists of a 3 feet (0.91 m) thick plastic concrete mix constructed through the weathered portion of bedrock, varies in depth from 10 feet (3.0 m) to 110 feet (34 m) and totals 250,000 square feet (23,000 m2).