Overall Rating	Silver - expired
Overall Score	50.74
Liaison	Catherine Lockhart
Submission Date	Sept. 23, 2019

STARS v2.2

Lawrence University
OP-21: Water Use

Status

Score

Responsible Party

3.08 / 4.00

Jeff Clark
Professor
Geology

"---" 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

Part 1. Reduction in potable water use per person

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

	Performance Year	Baseline Year
Total water withdrawal	89,697.61 Cubic meters	106,771.27 Cubic meters

Potable water use:

	Performance Year	Baseline Year
Potable water use	89,697.61 Cubic meters	106,771.27 Cubic meters

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

	Start Date	End Date
Performance Period	Sept. 1, 2017	Aug. 31, 2018
Baseline Period	Sept. 1, 2012	Aug. 31, 2013

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:

Earliest records available. Bjorklunden water use or sq. ft age. is not included in baseline - see internal notes for additional information.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	1,303	1,493
Number of employees resident on-site	10	9
Number of other individuals resident on-site	9	0
Total full-time equivalent student enrollment	1,539	1,518
Full-time equivalent of employees	513	509
Full-time equivalent of students enrolled exclusively in distance education	0	0
Weighted campus users	1,876.25	1,895.75

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	47.81 Cubic meters	56.32 Cubic meters

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

15.12

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	139,592.33 Gross square meters	126,070.86 Gross square meters

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	0.64 Cubic meters per square meter	0.85 Cubic meters per square meter

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

24.13

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	188.38 Hectares	22.73 Hectares

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	476.15 Cubic meters per hectare	4,697.97 Cubic meters per hectare

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

89.86

Optional Fields

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

We've been routinely replacing fixtures with low flow equivalents in all renovation projects. We only irrigate athletic fields.

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

The campus garden collects rainwater for irrigation (although, due to the size of the garden, the majority of the water comes from a high-efficiency drip-irrigation system).
Detention areas use the physical features of the campus to store water. There are three detention areas on campus, one behind the Warch Campus Center, one at the end of Boldt Way and a third behind Hiett Hall and by the apiary.
There is also underground water storage under the Banta Bowl and it takes the water and runs it to the river. Only new plantings are watered on campus until they are well established.

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

Fixtures are replaced up to code during renovations.

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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