Given emerging technology â and a contracting economy â health plans are looking hard at whether carve-outs for pharmacy benefits, disease management, specialty pharmacy, and behavioral health care are worth the money.
1 The speed in high-grit sewage handling systems should not exceed 12 ft/sec. 2  The flow and velocity in sewage systems with low grit concentrations should not exceed 18 ft/sec.
Consideration of pressure flow is allowed for the major storm event. In pressure flow, the hydraulic grade line will be higher than the pipe diameter. Simple storm sewer design involves several assumptions such as steady and uniform gravity flow, junction losses in intakes and manholes, outlet conditions, etc.