Overall Rating	Silver - expired
Overall Score	50.71
Liaison	Tsuneo Yabusaki
Submission Date	June 22, 2018
Executive Letter	Download

STARS v2.1

Soka University of America
OP-22: Water Use

Status

Score

Responsible Party

2.43 / 5.00

Tom Harkenrider
Chief of Operations
Operations

"---" 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’s Aqueduct Water Risk Atlas:

Medium to High

Part 1

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

	Performance Year	Baseline Year
Total water use	---	70,004,323 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	25,974,674 Gallons	24,694,472 Gallons

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

	Start Date	End Date
Performance Year	June 1, 2015	July 30, 2017
Baseline Year	July 1, 2007	June 30, 2010

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:

The baseline period (July 2007 to June 2010) is a three year period in order to average out year-over-year variation. The same three year baseline period is used for all calculations requiring a baseline except when data is unavailable.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	434	377
Number of employees resident on-site	6	6
Number of other individuals resident on-site and/or staffed hospital beds	11	3
Total full-time equivalent student enrollment	450	383
Full-time equivalent of employees (staff + faculty)	210	158
Full-time equivalent of students enrolled exclusively in distance education	0	0
Weighted campus users	616	504.50

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	42,166.68 Gallons	48,948.41 Gallons

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

13.85

Part 2

Gross floor area of building space:

	Performance Year	Baseline Year
Gross floor area	1,046,473 Gross square feet	734,680 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	24.82 Gallons per square foot	33.61 Gallons per square foot

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

26.16

Part 3

Does the institution wish to pursue Part 3 of this credit? (reductions in total water use per acre/hectare of vegetated grounds):

Yes

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	46.70 Acres	51.20 Acres

Total water use (potable + non-potable) per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water use per unit of vegetated grounds	0 Gallons per acre	1,367,271.93 Gallons per acre

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

---

Optional Fields

A brief description of the institution's water-related behavior change initiatives, e.g. initiatives to shift individual attitudes and practices such as signage and competitions:

---

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 (e.g. building retrofits):

SUA's irrigation system was recently upgraded with brass-valve "smart" sprinklers that review evapotranspiration and only deploy when moisture has evaporated from the soil. Plastic drip irrigation valves were also replaced with brass valves to prevent leakage. The Olympic-sized pool has a cover that reduces water evaporation rates. Finally, aerators have are being installed on all sinks across campus.

The website URL where information about the programs or initiatives is available:

---

Additional documentation to support the submission:

OP22 - Water Use_1.xlsx

Data source(s) and notes about the submission:

Vegetated area data were calculated using ESRI's ArcGIS. Between the baseline and performance years, vegetated area decreased due to the construction of Maathai Hall and the Soka Performing Arts Center, the expansion of Parking Lot A, and the construction of the parking structure adjacent to the Recreation Center.