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D-408/2015a Post Emergency Pour Flush Institutional Latrine (Septic Tanks and Drainfield) Design and BoQ

This document contains documentation to help UNHCR and WASH actors build pour flush institutional latrines in refugee settings with septic tanks and drain fields. The package includes: Technical Drawings; Step by Step Construction Drawings; Bills of Quantity; Material and Workmanship Specifications; and Design Calculations.

F-401/2016a Septic Tank Sizing Spreadsheet (UNHCR, 2016)

This sizing calculation tool has been designed to assist UNHCR and WASH actors correctly size septic tanks in displaced settings taking into account numbers of users, wastewater and sewage flows, sludge and scum accumulation rates, desludging periods, liquid retention times, and average annual ambient temperatures.