Ten States Standards

Published by Great Lakes — Upper Mississippi River Board of State and Provincial Public Health and Environmental Managers

Summary

The 'Ten States Standards' (formally: Recommended Standards for Wastewater / Water Works) are the de-facto wastewater design standards across the Great Lakes states. They specify minimum scour velocity, force-main sizing, lift-station controls, and wet-well sizing for sanitary sewer pumping.

Key sections

• §44 Force Mains (minimum scour 2 ft/s, max velocity 8 ft/s)
• §43 Pumping Stations (firm-capacity rule, redundant pump)
• §42 Wet Wells (cycle time + pump-down volume)