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Water

Campus Water Usage

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Chart showing water usage (CCF) by month in 2023-24 and by fiscal year from 1990-91 to 2023-24. Total campus potable water usage in 2023-24 was 44,200 centum cubic feet (CCF), equivalent to about 3.3 million gallons.

 Source of Charts: CSU Energy Dashboard

Goal

Pursue cost effective water resource conservation to reduce consumption by ten percent by 2030, as compared to a 2019 baseline, including steps to develop sustainable, drought tolerant or native landscaping, reduce turf, install controls to optimize irrigation water use, reduce water usage in restrooms, showers, fountains and decorative water features, and promote the use of reclaimed/recycled water (CSU Sustainability Policy). 

Status

Humboldt continues to take steps to reduce campus water use in its domestic and irrigation systems, by seeking cost-effective efficiency and water conservation measures.

Projects

  • Behavioral and Social Sciences building collects rainwater in twin 10,000 gallon tanks and recycles it for wastewater use (Facilities Management) 
  • 0.5 Gallon-Per-Minute (GPM) aerators on sink faucets (Facilities Management) 
  • Low-flow showerheads installed in campus building and residence hall shower stalls (Facilities Management) 
  • Domestic and irrigation water system leak detection, saving an estimated 1,170 CCF per year based on leak survey data, equivalent to approximately 20 percent of irrigation only use (Facilities Management)
  • Retrofit existing flush-o-meters to reduce water to 2.4 GPM for toilets and 1.0 GPM for urinals (Facilities Management) 
  • Replace turf with with perennial, native and/or drought tolerant plants

Next Steps

  • Continue campus-wide installation of building & system level metering
  • Replace turf in certain areas with native and/or drought tolerant plants
  • Continue surveying for leaks and conducting repairs to domestic and irrigation water systems
  • Install soil-moisture and weather controlled irrigation system with programmable data lines
  • Install low-flow toilets and urinals
  • Work with the City of Arcata to consider extending a reclaimed water line to campus

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