Overall Rating Silver
Overall Score 51.63
Liaison Dwayne Doornbosch
Submission Date June 24, 2021

STARS v2.2

Langara College
OP-21: Water Use

Status Score Responsible Party
3.31 / 4.00 Patricia Baker
Associate Director Facilities
Facilities
"---" 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:
Low

Total water withdrawal (potable and non-potable combined):
Performance Year Baseline Year
Total water withdrawal 67,739 Cubic Metres 101,326 Cubic Metres

Potable water use:
Performance Year Baseline Year
Potable water use 67,739 Cubic Metres 101,326 Cubic Metres

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Period Jan. 1, 2019 Dec. 31, 2019
Baseline Period Jan. 1, 2007 Dec. 31, 2007

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

The water use baseline year of 2007 was selected in order to align with the GHG reduction reporting for OP-2, and because that is the first year that significant on-campus water reduction measures began.


Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 0 0
Number of employees resident on-site 0 0
Number of other individuals resident on-site 0 0
Total full-time equivalent student enrollment 11,246.97 7,074.15
Full-time equivalent of employees 1,113.76 585
Full-time equivalent of students enrolled exclusively in distance education 182.97 0
Weighted campus users 9,133.32 5,744.36

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 67,739 Cubic Metres 101,326 Cubic Metres

Percentage reduction in potable water use per weighted campus user from baseline:
57.95

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 66,778 Gross Square Metres 43,548 Gross Square Metres

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 1.01 Cubic Metres / GSM 2.33 Cubic Metres / GSM

Percentage reduction in potable water use per unit of floor area from baseline:
56.40

Area of vegetated grounds:
Performance Year Baseline Year
Vegetated grounds 2.46 Hectares 3.15 Hectares

Total water withdrawal per unit of vegetated grounds:
Performance Year Baseline Year
Total water withdrawal per unit of vegetated grounds 27,536.18 Cubic Metres / Hectare 32,166.98 Cubic Metres / Hectare

Percentage reduction in total water withdrawal per unit of vegetated grounds from baseline:
14.40

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

Langara has waterfill stations installed in multiple buildings across campus to provide access to clean filtered drinking water. This is part of our water maintenance strategy to provide drinking water to staff, faculty and students while reducing cost and waste. While primarily a waste reduction initiative, part of the impetus of the waterfill station strategy was to encourage students and staff to think about their behaviour when it came to water use and to encourage water conservation.


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

Langara uses it's pond to capture rainwater and it is used for a small limited area of irrigation.


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

Since the baseline year, Langara has implemented the following building retrofit initiatives that have improved water use performance:
- installation of sensor faucets and low flow fixtures throughout facilities, including sinks, toilets, and showers
- removal of once-through cooling units
- repair of leaks in heating system and geo-exchange field & heating system.
- removal of large walk-in coolers that included once-through cooling

Additionally, landscaping practice improvements have been made to reduce irrigation demand, including the practice of not watering lawns and the planting of native species.


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

Additional documentation to support the submission:

The attached report shows usage and cost data related to water use on Langara campus, from 2006-current. The usage data was used in Part 1 of this credit.

Langara does not currently sub-meter water usage on campus, nor use non-potable water. This is why the total water usage and potable water usage figures are the same in this credit.

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.