Overall Rating	Gold
Overall Score	80.73
Liaison	Austin Eriksson
Submission Date	Oct. 3, 2024

STARS v2.2

California State University, Northridge
OP-21: Water Use

Status

Score

Responsible Party

6.00 / 6.00

Rachel Singleton
Energy and Sustainability Coordinator
FPDC

"---" indicates that no data was submitted for this field

Level of ”Physical Risk Quantity” for the institution’s main campus as indicated by the World Resources Institute Aqueduct Water Risk Atlas:

High

Part 1. Reduction in potable water use per person

Total water withdrawal (potable and non-potable combined):

	Performance Year	Baseline Year
Total water withdrawal	130,593,413 Gallons	248,916,448 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	130,593,413 Gallons	248,916,448 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):

	Start Date	End Date
Performance Period	July 1, 2023	June 30, 2024
Baseline Period	July 1, 2012	June 30, 2013

If end date of the baseline year/period is 2004 or earlier, provide:

A brief description of when and why the water use baseline was adopted:

2013 is being used as the baseline year because the Governors E.O. has established that year as the baseline for the 25% (16% for our local utility) reduction goal in Ca.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	2,872	2,703
Number of employees resident on-site	22	0
Number of other individuals resident on-site	84	0
Total full-time equivalent student enrollment	29,866	31,288
Full-time equivalent of employees	3,106	2,990
Full-time equivalent of students enrolled exclusively in distance education	1,141	2,850
Weighted campus users	24,680.75	24,246.75

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	5,291.31 Gallons	10,265.97 Gallons

Percentage reduction in potable water use per weighted campus user from baseline:

48.46

Part 2. Reduction in potable water use per unit of floor area

Gross floor area of building space:

	Performance Year	Baseline Year
Gross floor area	6,714,238 Gross square feet	6,007,523 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	19.45 Gallons per square foot	41.43 Gallons per square foot

Percentage reduction in potable water use per unit of floor area from baseline:

53.06

Part 3. Reduction in total water withdrawal per unit of vegetated grounds

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	95 Acres	95 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	1,374,667.51 Gallons per acre	2,620,173.14 Gallons per acre

Percentage reduction in total water withdrawal per unit of vegetated grounds from baseline:

47.54

Optional Fields

A brief description of the institution's water-related behavior change initiatives:

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A brief description of the institution's water recovery and reuse initiatives:

CSUN has a demonstration project with one cistern for capturing rainfall. In addition to this, the university has several bioswales for filtering and capturing rainwater from hardscapes.

A brief description of the institution's initiatives to replace plumbing fixtures, fittings, appliances, equipment, and systems with water-efficient alternatives:

CSUN has taken advantage of several of our local utility's rebate programs to install low flow aerators and low flow or waterless urinals campus-wide, implementing low flow toilets as well as countless landscape renovations and improvements.

Website URL where information about the institution’s water conservation and efficiency efforts is available:

http://csun.edu/sustainability

Additional documentation to support the submission:

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Data source(s) and notes about the submission:

The small difference between weighted campus user for the (performance year) and the weighted campus user in PRE-5 is because these numbers refer to different years. 2019 was selected as the performance because it was the most recent calendar year representative of normal operations (due to the COVID-19 pandemic). Figures in PRE-5 reflect the 2020 year, and include the population change.