Easton's Bible Dictionary (1897)
Opened, a fountain and a stream issuing from it on the border between Judah and Benjamin (Josh. 15:8, 9; 18:15). It has been identified with ‘Ain Lifta, a spring about 2 1/2 miles north-west of Jerusalem. Others, however, have identified it with ‘Ain’ Atan, on the south-west of Bethlehem, whence water is conveyed through “Pilate’s aqueduct” to the Haram area at Jerusalem.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
NEPH'TOAH (opening), THE WATER OF. The spring or source of the water of Nephtoah, was one of the landmarks between Judah and Benjamin. Josh 15:9; Josh 18:15. It has been located north-west of Jerusalem and identified with Ain Lifta, a spring situated a little distance above the village of the same name. But Conder makes it identical with Ain 'Atan, south-west of Bethlehem, and from whence an old aqueduct once led to the temple, and now at intervals supplies the Haram area at Jerusalem through Pilate's aqueduct.