Dungeness Watershed - Consumptive use calculation assumptions

This page is being maintained as an archive of past information and will not be updated.

This table summarizes standard consumptive use assumptions for permit-exempt well use in the Dungeness Watershed.  Consumptive uses are those that reduce the amount or quality of water in the water source.


Type of use Users relying on a permit-exempt well withdrawal  for water supply Consumptive use
Domestic use (indoor use) House on a septic system 10%
House served by a sewer system 100%
Irrigation (outdoor use) Watering up to ½ acre non-commercial lawn or garden 90%
Using up to 5,000 gallons per day for agriculture industrial use 90%