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.
The PDWF is the design flowused to select the pipe size. Minimum flows are used to determine if specified velocities can bemaintained to prevent deposition of solids.The ratio of PDWF to ADWF will range from less than 130% for some large sanitary sewers to morethat 260% for smaller sewers.