What is the average daily flow (in gpd) for a system serving 1100 people with a total flow of 80,000 gpd?

To find the average daily flow per capita, you can divide the total flow of the system by the number of people it serves. In this case, the total flow is 80,000 gallons per day (gpd) and the number of people is 1,100.

Calculating the per capita flow:

[ \text{Average daily flow per capita} = \frac{\text{Total flow}}{\text{Number of people}} = \frac{80,000 \text{ gpd}}{1,100 \text{ people}} ]

When you perform that calculation, the result is approximately 72.73 gpd per capita, which can be rounded to 73 gpd per capita. This figure represents the average amount of wastewater generated by each person in the system on a daily basis.

This calculation is essential in designing and managing septic systems, as it helps to ensure that the system can adequately handle the load generated by the population it serves. 73 gpd per capita is a realistic estimate often used in wastewater management planning.