| Forecast Period | 90% Exceedance Volume | 50% Exceedance Volume | Percent Average | 10% Exceedance Volume | |
| Santa Clara | |||||
| Pine Valley, Nr | April-July | 1.3 | 1.3 | 27 | 1.5 |
| May-July | 0.89 | 0.93 | 23 | 1.1 | |
| Virgin | |||||
| Virgin | April-July | 17.9 | 18.6 | 32 | 20 |
| May-July | 11.9 | 12.6 | 33 | 14.1 | |
| Hurricane, Nr | April-July | 9.2 | 11.8 | 18.7 | 13 |
| May-July | 5.9 | 8.5 | 21 | 9.7 | |
| Littlefield | April-July | 12 | 12.4 | 19.1 | 15 |
| May-July | 6.5 | 6.9 | 16 | 9.5 |