Environment

Is California water use increasing?

Produced by Aaron Mendelson & Chris Keller | Updated Sept. 7, 2016

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About the data: These charts show the daily per capita residential water use rate in California as calculated by the State Water Resources Control Board. The charts cover the March 2017 reporting period, and are compared to the previous month unless specified. Since the per capita measure (which reflects gallons of water used per resident per day) does not take into account rainfall, temperature, humidity and population density, the State Water Resources Control Board discourages comparisons between water suppliers.

Central Coast

For the 28 agencies in this region the average daily water consumption by each residential customer increased to 49.89 gallons in March 2017 compared to 48.44 gallons in February 2017.

Colorado River

For the 12 agencies in this region the average daily water consumption by each residential customer increased to 111.24 gallons in March 2017 compared to 105.73 gallons in February 2017.

North Coast

For the 14 agencies in this region the average daily water consumption by each residential customer decreased to 48.29 gallons in March 2017 compared to 51.71 gallons in February 2017.

North Lahontan

For the 5 agencies in this region the average daily water consumption by each residential customer increased to 59.94 gallons in March 2017 compared to 57.67 gallons in February 2017.

Sacramento River

For the 41 agencies in this region the average daily water consumption by each residential customer increased to 70.13 gallons in March 2017 compared to 64.08 gallons in February 2017.

San Francisco Bay

For the 47 agencies in this region the average daily water consumption by each residential customer increased to 51.62 gallons in March 2017 compared to 50.01 gallons in February 2017.

San Joaquin River

For the 26 agencies in this region the average daily water consumption by each residential customer increased to 68.67 gallons in March 2017 compared to 60.39 gallons in February 2017.

South Coast

For the 167 agencies in this region the average daily water consumption by each residential customer increased to 68.60 gallons in March 2017 compared to 56.14 gallons in February 2017.

South Lahontan

For the 17 agencies in this region the average daily water consumption by each residential customer increased to 78.12 gallons in March 2017 compared to 62.25 gallons in February 2017.

Tulare Lake

For the 27 agencies in this region the average daily water consumption by each residential customer increased to 90.02 gallons in March 2017 compared to 69.19 gallons in February 2017.

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