Based on pressure requirements, the system is adequate to supply maximum day demands. Another local regulation requires analysis of peak hour demands with slightly lower allowable pressures. Since the peak hour demands also share the industrial load from the Average Day condition, Peak Hour can be inherited from Average Day. In this instance, Peak Hour could also inherit from Maximum Day.

Another scenario is also created to reference these new demands, as shown below:

No physical data was changed, so the physical alternatives remain the same.