 
		 
		 
		Listening for leaks
 
		Wooden Water Pipe, removed from Market Street, December 6, 1901
 
		Bureau of Water, Cumberland, west of 13th Street, pipe line, 1907
 
		Oak Lane Reservoir pipeline, 1904
 
		State Street pipeline construction, 1904
 
		Showing the method of sinking the pipe on the bed of the river
 
		Water Works Standpipe, 1853
 
		Pipe Test, 1914
