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California District Office

25 Technology Drive California Technology Park Coal Center, PA 15423 Phone: (724) 769-1100  Fax: (724) 769-1102

	Surface Subsidence Agent Program
	Underground Mining Information
	What does the California District Office do?
	Underground Bituminous coal mines in Pennsylvania
	Unresolved Damage and Water Loss Report
	I-79 Longwall Activities		William S. Plassio District Mining Manager		Serving: all of Western Pennsylvania
	McDonald Mine Water Break Out News		wplassio@state.pa.us		Directions to California Office
	Ryerson Station Dam Interim Report
			For information on mine subsidence insurance or to report a subsidence or water loss problem over an active underground mine, contact our mine subsidence hotline at (800) 922-1678.