Dos Pueblos qualified three individuals and a relay team for the CIF-SS divisional swim finals in Mission Viejo.
Brynn Graham qualified for the Divison 1 finals in the 200 individual medley and is an alternate for the 100 freestyle final.
For the boys, junior Cooper Costello is seeded No.1 in the Division 2 100 butterfly and junior Nikko Carillo is third in the 100 backstroke.
The Chargers will also compete in the D2 200 medley relay with Carillo, Costello, Dylan White and Brody Luke.
The finals for Divisions 1 and 2 are on Friday.