| Reservoir | Current level(% normal capacity) | Usable storage (%) |
| Bhumibol Dam | 7,194 (53%) | 3,394 (25%) |
| Sirikit Dam | 4,929 (52%) | 2,079 (22%) |
| Pa Sak Jorasit Dam | 112 (13%) | 97 (11%) |
| Wachiralongkorn Dam | 4,142 (47%) | 1,130 (13%) |
(SL = Supply Level)
| Table of Large Dam Supply Level |