Overall Rating Gold
Overall Score 71.07
Liaison Julien-Pierre Lacombe
Submission Date March 4, 2022

STARS v2.2

Ecole de Technologie Superieure
OP-21: Water Use

Status Score Responsible Party
Complete 3.16 / 4.00 Javier Beltran-Galindo
Mr
real estate asset management department
"---" 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 28,420,157.70 Gallons 35,769,160 Gallons

Potable water use:
Performance Year Baseline Year
Potable water use 28,420,157.70 Gallons 35,769,160 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Period Jan. 1, 2020 Dec. 31, 2020
Baseline Period Jan. 1, 2019 Dec. 31, 2019

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

Since 2020, some pavilions no longer use potable water to cool the heat exchangers in the cooling towers for space conditioning. The ÉTS decided to purchase cooled water from the ÉCCU thermal power plant. This has the advantage of avoiding the use of chemicals for water treatment, the total elimination of water purges into the sewers and most importantly the elimination of risks of contamination of respiratory tract by Legionella bacteria.


Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 650 1,100
Number of employees resident on-site 0 0
Number of other individuals resident on-site 0 0
Total full-time equivalent student enrollment 8,075 7,929
Full-time equivalent of employees 945 945
Full-time equivalent of students enrolled exclusively in distance education 0 0
Weighted campus users 6,927.50 6,930.50

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 4,102.51 Gallons 5,161.12 Gallons

Percentage reduction in potable water use per weighted campus user from baseline:
20.51

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 2,659,202 Gross Square Feet 2,238,333 Gross Square Feet

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 10.69 Gallons / GSF 15.98 Gallons / GSF

Percentage reduction in potable water use per unit of floor area from baseline:
33.12

Area of vegetated grounds:
Performance Year Baseline Year
Vegetated grounds 4.31 Acres 4.31 Acres

Total water withdrawal per unit of vegetated grounds:
Performance Year Baseline Year
Total water withdrawal per unit of vegetated grounds 6,599,209.98 Gallons / Acre 8,305,661.08 Gallons / Acre

Percentage reduction in total water withdrawal per unit of vegetated grounds from baseline:
20.55

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

The new pavilions use water-efficient technologies. There is no longer any use of water for space cooling purposes (air conditioning) in three of the teaching pavilions.


A brief description of the institution's water recovery and reuse initiatives:
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A brief description of the institution's initiatives to replace plumbing fixtures, fittings, appliances, equipment, and systems with water-efficient alternatives:
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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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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 or simply email your inquiry to stars@aashe.org.