I know the code is a minimum operating pressure of 20psi at service connections, but what are the restrictions against low pressure along the course of the water main? In our case we have a private 4" main that is functioning more like a transmission main feeding a camp with demand of 30gpm...
Does anyone know where I could find the duration for the peak flow estimates generated by USGS regression techniques? The equations use a rainfall intensity, I based on a 24-hour rainfall with a 2 year recurrence interval. Curious if the other peak flow events, such as Q(10), Q(25), ..., are...
