Overall Rating	Silver - expired
Overall Score	48.87
Liaison	Amy Parrish
Submission Date	July 16, 2021

STARS v2.2

Boise State University
OP-21: Water Use

Status

Score

Responsible Party

0.00 / 5.00

Brian Entman
Energy Manager
Facilities, Operations and Maintenance

"---" 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:

Medium to High

Part 1. Reduction in potable water use per person

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

	Performance Year	Baseline Year
Total water withdrawal	582,315.89 Cubic meters	479,695.68 Cubic meters

Potable water use:

	Performance Year	Baseline Year
Potable water use	582,315.89 Cubic meters	479,695.68 Cubic meters

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

	Start Date	End Date
Performance Period	July 1, 2018	June 30, 2019
Baseline Period	July 1, 2014	June 30, 2015

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:

N/A

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	3,147	2,463
Number of employees resident on-site	7	0
Number of other individuals resident on-site	7	0
Total full-time equivalent student enrollment	17,618	16,713
Full-time equivalent of employees	2,719	2,339
Full-time equivalent of students enrolled exclusively in distance education	3,575	2,019
Weighted campus users	13,367	13,390.50

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	43.56 Cubic meters	35.82 Cubic meters

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	512,861.35 Gross square meters	499,469.85 Gross square meters

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	1.14 Cubic meters per square meter	0.96 Cubic meters per square meter

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 Hectares	0 Hectares

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	1,438,935.17 Cubic meters per hectare	1,185,354.89 Cubic meters per hectare

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

-21.39

Optional Fields

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

The university is working to increase the proportion of irrigation water that comes from non-potable sources. Portions of the campus are served by the South Boise Water Company, which delivers irrigation water from the Boise River through a network of canals and culverts. BSU is working to extend this network to convert additional builidngs from potable to non-potable irrigation service.

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

Sawtooth Hall, a residential dorm, has a greywater reclamation system that diverts greywater for irrigation purposes.

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:

Current water billing practices do not provide insight into which water meters are associated with irrigation use vs. non-irrigation use. Conversations are underway with the water utility to make the billing more transparent.

Additionally, considerable portions of the campus are irrigated with non-potable water sourced from the Boise river through a local canal company. This water is not billed on volume, but rather based on the amount of land & water rights held by the university. This non-potable irrigation water is not currently metered and is excluded from the reported totals. Diverted water that is not used by irrigation district shareholders is returned to the Boise river.

The university does not currently track total acres of vegetated grounds, but intends to begin tracking this metric.