The calculator on the bottom of the page is an unprotected spreadsheets where you can enter data, and if you want, save them to your computer. Refresh your browser to start again if you accidentally delete a formula cell.
Wastewater Facility (or septic system) Nitrogen Loading
Use the quick calculator above, the interactive spreadsheet below (ENTER DATA ONLY IN YELLOW SHADED CELLS), or download the spreadsheet at the bottom of page onto your computer.
Download bbnep-stf-nload.xls