| Performance indices | HAD alone | With GERD | |
| Volumetric reliability | Total shortfall (MCM) | 64,613 | 65,839 |
| Total target demand (MCM) | 2,331,000 | 2,331,000 | |
| Rv | 0.97 | 0.97 | |
| Metric reliability | Ns | 13 | 18 |
| N | 504 | 504 | |
| Rt | 0.97 | 0.96 | |
| Resilience | fs | 12 | 18 |
| fd | 13 | 18 | |
| φ | 0.92 | 1.00 | |
| Vulnerability | sum sj | 23,656 | 24,510 |
| fs | 12 | 18 | |
| η' | 1971 | 1362 | |
| Df | 4625 | 4625 | |
| η | 0.43 | 0.29 | |