The VO results present three conditions:
- Existing conditions – Wetland depth under current conditions.
- Post-development (observed GW levels) – Wetland depth using observed groundwater levels.
- Post-development (simulated GW levels) – Wetland depth using simulated groundwater levels.
For each simulation year, generate a hydrograph displaying the modelled pre-development and post-development wetland storage levels. The average storage depth for each Julian day (e.g., February 19 = Day 50) during the pre-development period should be calculated and used to establish upper and lower 95% confidence interval boundaries. These confidence intervals, which remain consistent across all years, should be plotted alongside the modelled wetland storage on each hydrograph.
Figure 1 presents a hypothetical hydrograph for all simulation years for comparing pre- and post-development using the existing GW level and post-development using the simulated GW level.
Table 1 presents the number and percentage of days out of the confidence interval.
Figure 2 presents a hypothetical hydrograph for all simulation years for comparing pre- and post-development with control using the existing GW level and post-development with control using the simulated GW level.
Table 2 presents the number and percentage of days out of the confidence interval.

Figure 1. Hypothetical hydrograph for all simulation years – comparing pre- and post-development
Table 1. Number and percentage of days out of the confidence interval.
| A1 |
|
Precent of days out of confidence interval |
| Existing – 1991-2007 | 0 | 0 |
| Post – 1991-2007 | 4 | 1.00 |
| Post(SimulatedGW) – 1991-2007 | 13 | 3.00 |

Figure 2. Hypothetical hydrograph for all simulation year – comparing pre- and post-development with control.
Table 2. Number and percentage of days out of the confidence interval.
| A1 |
|
Precent of days out of confidence interval |
| Existing – 1991-2007 | 0 | 0 |
| Post Mit – 1991-2007 | 4 | 1.00 |
| Post Mit(SimulatedGW) – 1991-2007 | 27 | 7.00 |

