| Forecast Period | 90% Exceedance Volume | 70% Exceedance Volume | 50% Exceedance Volume | Percent Average | 30% Exceedance Volume | 10% Exceedance Volume | |
| Santa Clara | |||||||
| Pine Valley, Nr | April-July | 1.1 | 1.2 | 1.3 | 26 | 1.4 | 1.7 |
| Virgin | |||||||
| Virgin | April-July | 24 | 25 | 26 | 45 | 28 | 31 |
| Hurricane, Nr | April-July | 14.5 | 16.4 | 17.5 | 28 | 20 | 25 |
| Littlefield | April-July | 10.9 | 12.6 | 13.7 | 21 | 16.2 | 19.9 |