Humans use 100 gallons of water a day.
For planning Municipalities and utility districts, we generally use 400gpd (gallons per day) for water reservoirs. 200 gpd is not abnormal for industrial use and fire flow planning. 100 gpd is a normal operating condition. CA is mandating 52.5 gpd for drought identified areas, to be reduced to 50 gpd by 2030.
This is stupid because the wastewater collection systems generally require 2.0 gpf toilet, though many function at 1.5 to 1.0 gpf (gallons per flush). The sewer lines need to be purged or they clog up and solids harden up inside them. Far less expensive to flush twice than digging up your sewer lines.
“Humans use 100 gallons of water a day.”
When we speak of almond production and water we are comparing gallons almond growing consumes versus water other plans require. Almond trees are very thirsty and require a lot more gallons per pound of almonds than most other plants do on a per pound produced. But you silly choose to compare almonds to humans, which is actually off topic as it has zero to do with comparing water consumption in agriculture products.