Final answer:
The establishment period allowed for WEp/c Outdoor Water Use Reduction, option 1 (no irrigation) is typically around 12 months.
Step-by-step explanation:
The establishment period allowed for WEp/c Outdoor Water Use Reduction, option 1 (no irrigation) can vary depending on the specific project and location. However, a common time frame for this establishment period is typically around 12 months.