Overall Rating Gold
Overall Score 65.20
Liaison Denice Koljonen
Submission Date Feb. 17, 2022

STARS v2.2

Boston College
OP-21: Water Use

Status Score Responsible Party
Complete 4.00 / 4.00 Bruce Dixon
Sustainability and Energy Specialist
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 1,262,315 Gallons 1,926,480 Gallons

Potable water use:
Performance Year Baseline Year
Potable water use 1,262,315 Gallons 1,926,480 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Period June 1, 2019 May 31, 2020
Baseline Period June 1, 2016 May 31, 2017

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

Baseline was recorded before the growth of the campus increased.


Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 7,175 7,403
Number of employees resident on-site 83 99
Number of other individuals resident on-site 0 0
Total full-time equivalent student enrollment 13,663.33 12,972
Full-time equivalent of employees 3,741 3,621
Full-time equivalent of students enrolled exclusively in distance education 831.33 371
Weighted campus users 14,244.25 14,042

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 88.62 Gallons 137.19 Gallons

Percentage reduction in potable water use per weighted campus user from baseline:
35.41

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 7,502,814 Gross Square Feet 5,700,389 Gross Square Feet

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 0.17 Gallons / GSF 0.34 Gallons / GSF

Percentage reduction in potable water use per unit of floor area from baseline:
50.22

Area of vegetated grounds:
Performance Year Baseline Year
Vegetated grounds 16.41 Acres 13.86 Acres

Total water withdrawal per unit of vegetated grounds:
Performance Year Baseline Year
Total water withdrawal per unit of vegetated grounds 76,923.52 Gallons / Acre 138,995.67 Gallons / Acre

Percentage reduction in total water withdrawal per unit of vegetated grounds from baseline:
44.66

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

Low flow showers heads are a standard have in all Dorm bathrooms. Irrigation controls have a Weather component that will not operate if rain is in the forecast. All irrigation is submetered.


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

N/A


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

In existing buildings, once plumbing fixtures are replaced they are upgraded to automatic and low flow fixtures.


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

Gross Floor Area of Building Space for performance year and baseline year does not include Outlying Properties. Outlying properties in the performance year consisted of less than 4% of the Gross Floor Area of Building Space.

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.