| Overall Rating | Silver - expired |
|---|---|
| Overall Score | 57.65 |
| Liaison | Michelle Seppala Gibbs |
| Submission Date | March 6, 2020 |
Hope College
OP-21: Water Use
| Status | Score | Responsible Party |
|---|---|---|
|
3.87 / 4.00 |
Michelle
Gibbs Director Office of Sustainability |
Level of ”Physical Risk Quantity” for the institution’s main campus as indicated by the World Resources Institute Aqueduct Water Risk Atlas:
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 |
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:
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:
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:
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:
Additional documentation to support the submission:
Data source(s) and notes about the submission:
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.