Overall Rating	Silver
Overall Score	52.37
Liaison	Sergio Alza
Submission Date	April 5, 2024

STARS v2.2

Brock University
OP-21: Water Use

Status

Score

Responsible Party

4.89 / 5.00

Evan Rodenburg
Sustainability Data Analyst
Facilities Management

"---" 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:

Medium to 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	241,622 Cubic meters	356,277 Cubic meters

Potable water use:

	Performance Year	Baseline Year
Potable water use	241,622 Cubic meters	356,277 Cubic meters

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

	Start Date	End Date
Performance Period	Jan. 1, 2022	Dec. 31, 2022
Baseline Period	Jan. 1, 2013	Dec. 31, 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:

Brock University has elected to utilize the 2013 benchmark for its Greenhouse Gas (GHG) Inventory; therefore, the water consumption baseline was created to coincide with the GHG baseline.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	2,589	2,331
Number of employees resident on-site	0	0
Number of other individuals resident on-site	0	0
Total full-time equivalent student enrollment	16,680	16,151
Full-time equivalent of employees	2,316.76	1,428
Full-time equivalent of students enrolled exclusively in distance education	179	30
Weighted campus users	14,760.57	13,744.50

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	16.37 Cubic meters	25.92 Cubic meters

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

36.85

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	278,508.99 Gross square meters	241,356 Gross square meters

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	0.87 Cubic meters per square meter	1.48 Cubic meters per square meter

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

41.23

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	75.23 Hectares	79.91 Hectares

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	3,211.78 Cubic meters per hectare	4,458.49 Cubic meters per hectare

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

27.96

Optional Fields

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

Brock University has installed 44 water bottle filling stations across the University campus. These stations feature a “green ticket” that tracks the usage and displays the number of plastic water bottles saved and diverted from the landfill. Having these water bottle filling stations around campus encourages students to bring their own water bottles to campus and reduce the utilization of single-use plastics. Over 5 .1 million bottles have been filled since 2014.

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

One of Grounds Services main objectives is to conserve irrigation water. This is being achieved by using automated watering systems, scheduling being monitored and regulated as precipitation rates change. Water is also saved by prioritizing areas such as the varsity fields, and only watering as needed, while also stopping to water some areas altogether. The systems also have rain and wind sensors that shut down the watering systems under conditions where extra water is not needed. Gray water systems have also been added to International Centre for toilets, and the Cairns Complex for irrigation.

The Plaza Building has a 45,000L cistern which supplies gray water to the toilets and urinals for the building, in combination with the use of low flow fixtures. The International Building has a 50,000L cistern uses the same low flow fixtures as well as gray water for urinals and toilets.

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

Existing toilets are being replaced with new low-flow technology, in order to save water. Taps in washrooms are also being replaced, when needed, with units that have a time sensor to limit the amount of water used. Brock prioritizes the integration of efficient solutions when replacing water using fixtures, fitting, appliances, equipment and systems on campus. Most recently two heavily utilized Ice machines (one in Market and one In Decew) were replaced with units that have an air cooling system, significantly reducing the amount of water required for it to operate. Low flow shower heads have also been installed in the on-campus residences to further reduce water use.

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

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Additional documentation to support the submission:

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Data source(s) and notes about the submission:

Water bottle refill stations: https://brocku.ca/sustainability/initiatives/water-bottle-refill-stations/

Irrigation: https://brocku.ca/sustainability/initiatives/grounds-keeping/