|Create Date||May 26, 2016|
|Last Updated||August 8, 2016|
This sizing calculation tool has been designed to assist UNHCR and WASH actors correctly size drain fields for septic tanks in displaced settings taking into account numbers of users, soil type, and wastewater and sewage flows.
The tool can be used for drain fields any size of septic tank from individual household units, to larger structures treating communal toilet blocks, or groups of households connected by a communal sewer.
|F-402/2016a Drain Field Sizing Spreadsheet (UNHCR, 2016) - MSEXCEL||Download|