Overall Rating	Bronze - expired
Overall Score	28.23
Liaison	Brian Webb
Submission Date	March 5, 2020

STARS v2.2

Houghton College
OP-21: Water Use

Status

Score

Responsible Party

2.76 / 4.00

Brian Webb
Sustainability Coordinator
Center for Sustainability

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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	12,330,088 Gallons	17,272,480 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	12,330,088 Gallons	17,272,480 Gallons

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

	Start Date	End Date
Performance Period	Dec. 1, 2018	Nov. 30, 2019
Baseline Period	Dec. 1, 2008	Nov. 30, 2009

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:

Our GHG emissions use a baseline year of Jan 1, 2009 - Dec 31, 2009. Our water bills, however, only come quarterly, thus this is the closest to a calendar year baseline that we can get for a similar time frame.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	719	1,020
Number of employees resident on-site	31	8
Number of other individuals resident on-site	16	5
Total full-time equivalent student enrollment	929	1,225
Full-time equivalent of employees	187	253
Full-time equivalent of students enrolled exclusively in distance education	36	0
Weighted campus users	1,013.50	1,370.50

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	12,165.85 Gallons	12,603.05 Gallons

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

3.47

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	915,687 Gross square feet	741,125 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	13.47 Gallons per square foot	23.31 Gallons per square foot

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

42.22

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	1,300 Acres	1,300 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	9,484.68 Gallons per acre	13,286.52 Gallons per acre

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

28.61

Optional Fields

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

We have hosted occasional water awareness efforts and we have posted signage at all faucets informing users how much water is used from the faucets.

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:

We have replaced all existing shower heads and faucet aerators with low flow models (moving showers from 2.5 gpm to 1.5 gpm and aerators from 1.5 gpm to 1.0 gpm). We also installed water conservation devices in the kitchen.

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:

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