Overall Rating	Bronze
Overall Score	31.17
Liaison	José Otazú Mejía
Submission Date	Jan. 2, 2024

STARS v2.2

Universidad Científica del Sur
OP-21: Water Use

Status

Score

Responsible Party

1.33 / 4.00

Mirtha Nazario
Dean of environmental engineering
environmental sciece

"---" 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

Part 1. Reduction in potable water use per person

Total water withdrawal (potable and non-potable combined):

	Performance Year	Baseline Year
Total water withdrawal	24,597,588 Gallons	46,669,691.50 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	10,284,643.32 Gallons	5,285,615.18 Gallons

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

	Start Date	End Date
Performance Period	Jan. 1, 2021	Dec. 31, 2021
Baseline Period	Jan. 1, 2019	Dec. 31, 2019

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:

The calculated data corresponds to the measurement of the water footprint, but only for the Villa campus. Please note that the North and Ate campuses are not being monitored yet.

There are discrepancies between this credit and PRE 5, primarily because many of the sustainability advancements, such as carbon footprint and water footprint measurements, have been conducted solely at the Villa campus, which is the first, largest, and located in a different area. Based on the learnings obtained, there are plans to replicate these studies in the other campuses by 2024. Therefore, the data considered here do not directly correspond to PRE 5, as PRE 5 encompasses all campuses, while the current data and initiatives are specific to the Villa campus. This approach has led to the discrepancies observed between the two credits.

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	1,974	1,833
Total full-time equivalent student enrollment	10,996	11,017
Full-time equivalent of employees	694	574
Full-time equivalent of students enrolled exclusively in distance education	0	0
Weighted campus users	10,741.50	10,526.25

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	957.47 Gallons	502.14 Gallons

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

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	1,050,192 Gross square feet	1,050,192 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	9.79 Gallons per square foot	5.03 Gallons per square foot

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

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	0 Acres	0 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	24,597,588 Gallons per acre	46,669,691.50 Gallons per acre

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

47.29

Optional Fields

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

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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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Data source(s) and notes about the submission:

Indeed, there are discrepancies, primarily because many of the sustainability advancements, such as carbon footprint and water footprint measurements, have been conducted solely at the Villa campus, which is the first, largest, and located in a different area. Based on the learnings obtained, there are plans to replicate these studies in the other campuses. Therefore, the data considered here do not directly correspond to PRE 5, as PRE 5 encompasses all campuses, while the current data and initiatives are specific to the Villa campus. This approach has led to the discrepancies observed between the two credits.