| 1978-04-14 09 | 1978-05-30 13 | Datawell non-directional buoy | WV67104 | - | 34 30.900' | 120 37.900' |
| 1978-08-01 09 | 1978-12-12 13 | Datawell non-directional buoy | WV67103 | - | 34 30.900' | 120 37.900' |
| 1979-05-01 09 | 1979-07-30 13 | Datawell non-directional buoy | WV67103 | - | 34 30.900' | 120 37.900' |
| 1979-10-18 09 | 1980-03-25 13 | Datawell non-directional buoy | WV67103 | - | 34 33.110' | 120 42.380' |
| 1981-04-17 09 | 1981-07-08 13 | Datawell non-directional buoy | W67531-9 | - | 34 40.700' | 120 50.400' |
| 1982-01-24 09 | 1982-03-10 13 | Datawell non-directional buoy | W67536-9 | - | 34 40.700' | 120 50.400' |
| 1982-07-12 09 | 1982-08-09 13 | Datawell non-directional buoy | WV67530 | - | 34 40.700' | 120 50.400' |
| 1982-10-28 09 | 1982-11-30 13 | Datawell non-directional buoy | W67355-9 | - | 34 40.700' | 120 50.400' |
| 1985-03-30 16 | 1985-10-10 04 | Datawell non-directional buoy | W68124-9 | - | 34 29.700' | 120 43.600' |
| 1986-03-26 01 | 1986-09-16 13 | Datawell non-directional buoy | W67526-9 | - | 34 29.500' | 120 42.900' |
