The table compares the average amount of water used daily by households in the USA across various categories in 2011 and 2012, following the application of water efficiency measures.
Overall, total daily usage of water decreased significantly after the water-saving measures were introduced. While the majority of categores experienced a reduction, some showed minimal change or remained exactly the same.
In 2011, toilets accounted for the highest water consumption at 18.5 gallons per household daily, with washing machines taking second place at 15.0 gallons. By 2012, water used for toilets plummeted to 8.2 gallons, while washing machine usage declined to 10.0 gallons. Similarly, water leaks saw a sharp drop from 9.5 to 4.0 gallons. Showers and dishwashers also showed slight decreases, falling to 8.8 and 0.7 gallons, respectively.
In contrast, other areas showed no impact from the efficiency measures. Household tap usage remained nearly stable, moving slightly from 10.9 to 10.8 gallons. While water consumption for baths (1.2 gallons) and other uses (1.6 gallons) stayed identical. Consequently, overall daily household usage fell from 69.3 to 45.3 gallons.