Chor-Ashan
Chor-Ashan is a town in Judah named once, in David's distribution of Amalekite spoil after the recovery at Ziklag. UPDV renders the place-name as "Bor-ashan." It is plausibly the same town as Ashan in the Shephelah town-list of Joshua.
A recipient of David's spoil
David, returning to Ziklag, divides the recovered plunder among the Judahite settlements that had sheltered him during his outlaw years. The list runs through Bethuel, Ramoth of the South, Jattir, Arad, Siphmoth, Eshtemoa, Racal, the cities of the Jerahmeelites, and the cities of the Kenites (1 Samuel 30:27-29), then continues: "and to those who were in Hormah, and to those who were in Bor-ashan, and to those who were in Athach" (1 Samuel 30:30), closing with Hebron and "all the places where David himself and his men were accustomed to roam" (1 Samuel 30:31). Bor-ashan is one entry in a long sequence of southern-Judah towns David is repaying.
Possibly the same as Ashan
A town named Ashan appears in the Joshua town-list for Judah's Shephelah: "Libnah, and Ether, and Ashan" (Joshua 15:42). The umbrella connects the two — Bor-ashan ("well of Ashan") may be an alternate or fuller form of the same site.