Water Consumption

Water Usage Rate Vary Dramatically Within the County

Given San Bernardino County’s arid climate, effective water management is essential to ensure that the county has an ample water supply now and in the future. Statewide mandatory urban water restrictions, which went into effect in July 2014 and were lifted in November 2017, imposed water usage limits and prompted increased conservation and recycling. This indicator measures estimated residential water consumption in gallons per capita per day from larger water suppliers serving San Bernardino County.1 The water suppliers providing usage data serve approximately 1,450,000 county residents (or roughly 66% of the total San Bernardino County population). 2

Given San Bernardino County’s arid climate, effective water management is essential to ensure that the county has an ample water supply now and in the future

How is San Bernardino County Doing?

San Bernardino County residents’ daily per capita water consumption rose slightly between August 2017 and August 2018:

  • On average, according to data by water districts reporting usage statistics, San Bernardino County residential consumers used an estimated 132 gallons per capita per day (GPCD) in July 2019. 3
  • This GPCD rate is above the statewide rate of 112 GPCD.
  • The estimated average rate ranged from a low of 47 GPCD in Lake Arrowhead to a high of 213 GPCD in Riverside Highland Water Company service area.
  • Residential water usage can differ due to regional variations in climate, precipitation, land use, tourism, and income, and local supplier water costs, usage regulations and conservation programs.

Estimated Residential Gallons per Capita per Day

San Bernardino County Water Suppliers Reporting for July 2019
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Note: This chart includes urban water suppliers serving San Bernardino County that have more than 3,000 connections. City of Chino, City of Colton, Cucamonga Valley Water District, City of Redlands, Twentynine Palms, Victorville Water District, and West Valley Water District did not submit July 2019 data to the State Water Resources Control Board.

Source: State Water Resources Control Board, June 2014 – July 2019 Urban Water Supplier Monthly Reports (www.waterboards.ca.gov/water_issues/programs/conservation_portal/conservation_reporting.html)

1As of November 2017, water usage reports to the state are voluntary for urban water suppliers. Countywide estimates are not comparable to previous presentations due to fewer water suppliers reporting in 2019. 2Population data are sourced to the State Water Resources Control Board and the California Department of Finance, Table E-1, January 2019 3The countywide GPCD average was calculated by averaging the GPCD rate for each supplier and is a rough estimate of countywide usage.