Water, Wastewater & Stormwater

Oral

379821 - Optimizing orifice spacing in a low pressure pipe system with special reference to MN 7080-7083

Monday, June 4
4:00 PM - 5:30 PM
Location: Greenway EF

According to the USEPA Manual Onsite Wastewater Treatment and Disposal Systems, the holes in a low pressure pipe system should be spaced 2 foot to 7 foot apart. The objective is to fully moisten the soil absorption system surface with minimal overlap between adjacent holes. In this paper, I will examine the horizontal portion of capillarity and compare published work on soil capillarity to determine for specific soil types what the optimal hole spacing should be. These spacings will then be compared to the hole spacing requirements in Minnesota regulation 7080-7083.

Kevin Michael. Sherman, P.E., Ph,D., D. WRE

Technical Specialist
Presby Environmental, Inc.

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379821 - Optimizing orifice spacing in a low pressure pipe system with special reference to MN 7080-7083



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