Assertion: water main | /r/HasProperty | laid to a sewer line
Facets:
Source sentences:
text: Water mains may be laid closer than ten feet to a sewer line when: local conditions prevent a lateral separation of ten feet; the water main invert is at least 18 inches above the crown of the sewer; and the watermain is either in a separate trench or in the same trench on an undisturbed earth shelf located to one side of the sewer.