Overall Rating	Silver - expired
Overall Score	57.65
Liaison	Michelle Seppala Gibbs
Submission Date	March 6, 2020

STARS v2.2

Hope College
OP-21: Water Use

Status

Score

Responsible Party

3.87 / 4.00

Michelle Gibbs
Director
Office of 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	67,880,252 Gallons	97,382,868 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	67,880,252 Gallons	97,382,868 Gallons

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

	Start Date	End Date
Performance Period	Jan. 1, 2018	Dec. 31, 2018
Baseline Period	Jan. 1, 2005	Dec. 31, 2005

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:

This was to align with our GHG 2005 baseline.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	2,284	2,433
Number of employees resident on-site	12	12
Number of other individuals resident on-site	20	0
Total full-time equivalent student enrollment	2,967	3,205.80
Full-time equivalent of employees	731	675
Full-time equivalent of students enrolled exclusively in distance education	0	0
Weighted campus users	3,367.50	3,521.85

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	20,157.46 Gallons	27,651.05 Gallons

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

27.10

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	1,931,725 Gross square feet	1,625,506 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	35.14 Gallons per square foot	59.91 Gallons per square foot

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

41.35

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	150 Acres	150 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	452,535.01 Gallons per acre	649,219.12 Gallons per acre

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

30.30

Optional Fields

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

Increased plantings of native, perennials, and grasses that need reduced care and water.
Mulch with native hardwood bark.
Subsurface and drip irrigation.
Uses water management software and monitoring systems for irrigation and employs a full time irrigation technician.

Installs bubbler zones for new plantings and removes them when plants are established.

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

Worked with the Holland Board of Public Works (HPBW) to install a gray water line for use in our core campus to reduce the filtration level for irrigation.
Use water bags for the first year and during high-stress times.
In 2016 Hope installed a green roof on the DeWitt Cultural and Student Center and in 2019 installed a 2nd green roof on the LEED Certified Campus Ministries Building.

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

All showers on campus have been retrofitted with low-flow shower heads. Also, when residence halls Gilmore and Kollen were are renovated they both received low-flow toilets.
As other renovation projects come up or toilets need to be replaced from the older 5 or 6 gallon/flush toilets they are replaced with 1.2 gallon/flush toilets.

Website URL where information about the institution’s water conservation and efficiency efforts is available:

https://hope.edu/offices/sustainability/campus-sustainability/facilities-grounds.html

Additional documentation to support the submission:

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Data source(s) and notes about the submission:

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