| Overall Rating | Gold |
|---|---|
| Overall Score | 74.30 |
| Liaison | Joséanne Bélanger-Gravel |
| Submission Date | Sept. 2, 2022 |
Polytechnique Montréal
OP-21: Water Use
| Status | Score | Responsible Party |
|---|---|---|
|
4.00 / 4.00 |
Joséanne
Bélanger-Gravel Sustainability Advisor Sustainable Development Office |
Level of ”Physical Risk Quantity” for the institution’s main campus as indicated by the World Resources Institute Aqueduct Water Risk Atlas:
Total water withdrawal (potable and non-potable combined):
| Performance Year | Baseline Year | |
| Total water withdrawal | 98,670 Cubic meters | 303,693 Cubic meters |
Potable water use:
| Performance Year | Baseline Year | |
| Potable water use | 93,345 Cubic meters | 303,693 Cubic meters |
Start and end dates of the performance year and baseline year (or three-year periods):
| Start Date | End Date | |
| Performance Period | May 1, 2018 | April 30, 2019 |
| Baseline Period | June 1, 2004 | May 31, 2005 |
A brief description of when and why the water use baseline was adopted:
Year 2004-2005 is the baseline, it corresponds to the year just before opening the new Lassonde buildings, which are LEED Gold certified buildings. Since then, many efforts have been deployed to considerably decrease Polytechnique's water consumption.
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 | 7,111.80 | 4,006.83 |
| Full-time equivalent of employees | 1,529.16 | 1,433.57 |
| Full-time equivalent of students enrolled exclusively in distance education | 0 | 0 |
| Weighted campus users | 6,480.72 | 4,080.30 |
Potable water use per weighted campus user:
| Performance Year | Baseline Year | |
| Potable water use per weighted campus user | 93,345 Cubic meters | 303,693 Cubic meters |
Percentage reduction in potable water use per weighted campus user from baseline:
Gross floor area of building space:
| Performance Year | Baseline Year | |
| Gross floor area | 120,316.90 Gross square meters | 74,037 Gross square meters |
Potable water use per unit of floor area:
| Performance Year | Baseline Year | |
| Potable water use per unit of floor area | 0.78 Cubic meters per square meter | 4.10 Cubic meters per square meter |
Percentage reduction in potable water use per unit of floor area from baseline:
Area of vegetated grounds:
| Performance Year | Baseline Year | |
| Vegetated grounds | 0.50 Hectares | 0.50 Hectares |
Total water withdrawal per unit of vegetated grounds:
| Performance Year | Baseline Year | |
| Total water withdrawal per unit of vegetated grounds | 197,340 Cubic meters per hectare | 607,386 Cubic meters per hectare |
Percentage reduction in total water withdrawal per unit of vegetated grounds from baseline:
A brief description of the institution's water-related behavior change initiatives:
Since the PH probes were installed (2018-2019) on the neutralization tanks, a preventive maintenance program has been implemented for cleaning and checking these probes every 6 months. It has happened that the water inlet valve has been open for a long time due to some problem. An alarm has been programmed to notify the operator in place. In this way, he can react quickly and avoid wasting water. An alarm has also been programmed to notify the operator when the cooling towers water inlet valve is open for a long time. This signal can be an indication of the malfunction of the level probe or other.
A brief description of the institution's water recovery and reuse initiatives:
A brief description of the institution's initiatives to replace plumbing fixtures, fittings, appliances, equipment, and systems with water-efficient alternatives:
In the last 18 years, water consumption at Polytechnique has been reduced significantly. The main reason for this important decrease is the replacement of equipment by more efficient equipment (in terms of water consumption). New toilets have been installed, but some important changes also come from modifications in laboratory equipment or procedures, and from the installation of many new HVAC systems. When a change of equipment is needed, the efficiency in terms of water use is always considered.
Website URL where information about the institution’s water conservation and efficiency efforts is available:
Additional documentation to support the submission:
Data source(s) and notes about the submission:
Water use data are supplied by the Energy and Water Sector Manager. For this section, we are using the flexibility offered by STARS to report older assessment and inventories due to the impact of COVID-19 pandemic. Data of year 2018-2019 have been chosen since this is the last complete year not affected by COVID-19 therefore it represents normal activities on campus. Furthermore, this choice is considered a conservative one since Polytechnique Montréal continuously improves its energy perfomances so year 2019-2020, 2020-2021 and 2021-2022 should have been more performant than year 2018-2019.
Weighted campus users number for this credit differs from the one in PRE-5 since PRE-5 data are based on the latest data available which was 2020-2021 at the date of submission. Year 2020-2021 present an exception since all the students were registered in distance education because of the COVID-19 pandemic measures implemented by the government of Quebec. Before the pandemic, no student were enrolled in distance education.
Water use data are supplied by the Energy and Water Sector Manager. For this section, we are using the flexibility offered by STARS to report older assessment and inventories due to the impact of COVID-19 pandemic. Data of year 2018-2019 have been chosen since this is the last complete year not affected by COVID-19 therefore it represents normal activities on campus. Furthermore, this choice is considered a conservative one since Polytechnique Montréal continuously improves its energy perfomances so year 2019-2020, 2020-2021 and 2021-2022 should have been more performant than year 2018-2019.
Weighted campus users number for this credit differs from the one in PRE-5 since PRE-5 data are based on the latest data available which was 2020-2021 at the date of submission. Year 2020-2021 present an exception since all the students were registered in distance education because of the COVID-19 pandemic measures implemented by the government of Quebec. Before the pandemic, no student were enrolled in distance education.
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.