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 Sept. 2016 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 31 agencies in this region the average daily water consumption by each residential customer decreased to 78.14 gallons in September 2016 compared to 78.86 gallons in August 2016. See how much water this region saved.

Colorado River

For the 13 agencies in this region the average daily water consumption by each residential customer decreased to 187.53 gallons in September 2016 compared to 195.12 gallons in August 2016. See how much water this region saved.

North Coast

For the 14 agencies in this region the average daily water consumption by each residential customer increased to 80.07 gallons in September 2016 compared to 78.77 gallons in August 2016. See how much water this region saved.

North Lahontan

For the 5 agencies in this region the average daily water consumption by each residential customer increased to 128.31 gallons in September 2016 compared to 127.52 gallons in August 2016. See how much water this region saved.

Sacramento River

For the 39 agencies in this region the average daily water consumption by each residential customer decreased to 161.38 gallons in September 2016 compared to 178.13 gallons in August 2016. See how much water this region saved.

San Francisco Bay

For the 47 agencies in this region the average daily water consumption by each residential customer decreased to 79.95 gallons in September 2016 compared to 82.06 gallons in August 2016. See how much water this region saved.

San Joaquin River

For the 27 agencies in this region the average daily water consumption by each residential customer decreased to 130.27 gallons in September 2016 compared to 150.17 gallons in August 2016. See how much water this region saved.

South Coast

For the 170 agencies in this region the average daily water consumption by each residential customer decreased to 94.96 gallons in September 2016 compared to 102.07 gallons in August 2016. See how much water this region saved.

South Lahontan

For the 17 agencies in this region the average daily water consumption by each residential customer decreased to 146.33 gallons in September 2016 compared to 149.11 gallons in August 2016. See how much water this region saved.

Tulare Lake

For the 29 agencies in this region the average daily water consumption by each residential customer decreased to 176.51 gallons in September 2016 compared to 188.25 gallons in August 2016. See how much water this region saved.

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