Overall Rating Gold - expired
Overall Score 69.28
Liaison Austin Eriksson
Submission Date Feb. 29, 2016
Executive Letter Download

STARS v2.0

California State University, Northridge
OP-26: Water Use

Status Score Responsible Party
Complete 4.04 / 5.00 Austin Eriksson
Sustainability Program Manager
"---" indicates that no data was submitted for this field

Level of water risk for the institution’s main campus:

Total water use (potable and non-potable combined)::
Performance Year Baseline Year
Total water use 192,823,180 Gallons
+ Date Revised: Jan. 17, 2019
247,974,716 Gallons
+ Date Revised: Jan. 17, 2019

Potable water use::
Performance Year Baseline Year
Potable water use 192,823,180 Gallons
+ Date Revised: Jan. 17, 2019
247,974,716 Gallons
+ Date Revised: Jan. 17, 2019

Figures needed to determine "Weighted Campus Users"::
Performance Year Baseline Year
Number of residential students 2,980 2,703
Number of residential employees 0 0
Number of in-patient hospital beds 0 0
Full-time equivalent enrollment 33,502 31,288
Full-time equivalent of employees 3,133 2,990
Full-time equivalent of distance education students 3,376 2,850

Gross floor area of building space::
Performance Year Baseline Year
Gross floor area 2,084,525 Square Feet 2,041,469 Square Feet

Area of vegetated grounds::
Performance Year Baseline Year
Vegetated grounds 95 Acres 95 Acres

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Year Jan. 1, 2015 Dec. 31, 2015
Baseline Year Jan. 1, 2013 Dec. 31, 2013

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.

Water recycled/reused on campus, performance year:
0 Gallons

Recycled/reused water withdrawn from off-campus sources, performance year:
0 Gallons

A brief description of any water recovery and reuse systems employed by the institution:


A brief description of any water metering and management systems employed by the institution:

CSUN has several utility grade meters that are owned by LADWP our local water utility. The data from these meters are tracked using our campus wide metering database an analytics platform.

A brief description of any building retrofit practices employed by the institution, e.g. to install high efficiency plumbing fixtures and fittings:

CSUN has taken advantage of several of our local utility's rebate programs to install low flow aerators and low flow or water urinals campus wide as well as implementing low flow toilets.

A brief description of any policies or programs employed by the institution to replace appliances, equipment and systems with water-efficient alternatives:


A brief description of any water-efficient landscape design practices employed by the institution (e.g. xeriscaping):

CSUN has converted over 200,000 sqft of turf to drought tolerant and native plantings. This is a great way for the university to reduce its water consumption as well as offering more useful and inviting spaces for students. we will continue this effort following our turf removal plan.

A brief description of any weather-informed irrigation technologies employed by the institution:

CSUN has a "smart" irrigation system that links to our own weather station specifically designed for the irrigation system. Our irrigation system communicates with this weather station to calculate ET and uses that to automatically adjust irrigation schedules.

A brief description of other water conservation and efficiency strategies employed by the institution:

CSUN has implemented a smart irrigation system that is capable of detecting leaks and automatically shutting down if this event occurs. This system is also equipped with ET capabilities. We have also developed a special team, Irrigation Strike Team, in the grounds shop that targets leaks/breaks and fixes them in a timely manor to reduce waste.

We have also piloted and adopted Aqua Cents, a biodegradable hydrogel, as a water conservation strategy. We have done 3 large turf spaces (over 370,000 sqft) on campus equating an estimated savings of over 7 million gallons annually.

The website URL where information about the institution’s water conservation and efficiency initiatives is available:

The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution and complete the Data Inquiry Form.