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Wastewater Design, Installation and Maintenance –
download the pdf - or as a .zip file - Revised December 2007
Field Design (Excel Spreadsheet) - Revised April 2009
Drain-down and fill time - a paper presented at WOSSA
Flushing Design (Excel Spreadsheet)
Flushing Velocities – a discussion
Details (downloads in Word, Autocad DXF or DWG files)

Closed loop detail for long laterals or direct septic dispersal. To download click on any of these links:
R2000-dwg
or dxf or PDF
Operations & Maintenance – download the pdf
GeoVac Filters - 16 - 900 gpm
Septic tank effluent
Field Book for Describing and Sampling Soils by the USDA - New May 2011
GEO Controllers General Instructions
GEO Controllers Training Program - NEW October 2008
Live Interactive GEO Controller Training Program - large file
Nutrient Update Various Crops EPA Table 4–11