Overall Rating Gold
Overall Score 74.86
Liaison Alyssa Erding
Submission Date Jan. 19, 2021

STARS v2.2

Macalester College
OP-21: Water Use

Status Score Responsible Party
Complete 0.23 / 4.00 Nathan Lief
Facilities Director
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 to Medium

Total water withdrawal (potable and non-potable combined):
Performance Year Baseline Year
Total water withdrawal 27,962,932 Gallons 21,040,076 Gallons

Potable water use:
Performance Year Baseline Year
Potable water use 21,099,626 Gallons 19,992,128 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Period June 1, 2018 May 31, 2019
Baseline Period June 1, 2007 May 31, 2008

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

2008 is our baseline year for GHG Emission and Waste; using 2008 as the baseline for water to keep things consistent.


Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 1,197 1,100
Number of employees resident on-site 14 10
Number of other individuals resident on-site 2 0
Total full-time equivalent student enrollment 1,882 1,889
Full-time equivalent of employees 666.65 542
Full-time equivalent of students enrolled exclusively in distance education 0 0
Weighted campus users 2,216.24 2,100.75

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 9,520.47 Gallons 9,516.66 Gallons

Percentage reduction in potable water use per weighted campus user from baseline:
0

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 1,504,107 Gross Square Feet 1,351,585 Gross Square Feet

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 14.03 Gallons / GSF 14.79 Gallons / GSF

Percentage reduction in potable water use per unit of floor area from baseline:
5.16

Area of vegetated grounds:
Performance Year Baseline Year
Vegetated grounds 11 Acres 11 Acres

Total water withdrawal per unit of vegetated grounds:
Performance Year Baseline Year
Total water withdrawal per unit of vegetated grounds 2,542,084.73 Gallons / Acre 1,912,734.18 Gallons / Acre

Percentage reduction in total water withdrawal per unit of vegetated grounds from baseline:
0

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

Where low flow aerators were installed, there are small cards drawing attention to the fact that the aerators were installed to reduce water consumption.

One resident hall and one house owned by the College have water consumption metered and is accessible to occupants.


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

We capture rainwater from a parking lot then hold it in a rain garden while it is being filtered, which eventually waters trees and other landscaping.

New rain gardens were added with the construction of the new Theater building.


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

In July 2019 we replaced (886) 2.0 & 2.5 GPM faucet aerators in buildings across campus with 1.0 & 1.5 GPM aerators.

In addition to the Leonard Center shower heads, in 2017 we replaced (266) 2.5 GPM shower heads in the residence halls and houses with 2.0 GPM shower heads


Website URL where information about the institution’s water conservation and efficiency efforts is available:
Additional documentation to support the submission:
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