Overall Rating	Gold
Overall Score	67.59
Liaison	Susan Dorward
Submission Date	Aug. 4, 2022

STARS v2.2

Raritan Valley Community College
OP-21: Water Use

Status

Score

Responsible Party

4.00 / 4.00

Susan Dorward
Sustainability and Energy Coordinator
Facilities and Grounds

"---" 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	6,417,705 Gallons	20,902,112 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	6,262,880 Gallons	20,902,112 Gallons

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

	Start Date	End Date
Performance Period	July 1, 2020	June 30, 2021
Baseline Period	July 1, 2004	June 30, 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:

The water use baseline was adopted for our original STARS application in 2011.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	0	0
Number of employees resident on-site	0	0
Number of other individuals resident on-site	0	0
Total full-time equivalent student enrollment	4,627	3,972
Full-time equivalent of employees	530	363
Full-time equivalent of students enrolled exclusively in distance education	3,000	597
Weighted campus users	1,617.75	2,803.50

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	3,871.35 Gallons	7,455.72 Gallons

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

48.08

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	589,000 Gross square feet	441,000 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	10.63 Gallons per square foot	47.40 Gallons per square foot

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

77.57

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	0.50 Acres	0.45 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	12,835,410 Gallons per acre	46,449,137.78 Gallons per acre

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

72.37

Optional Fields

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

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

We have rainwater cisterns in the Bateman and Workforce buildings. These feed toilets, a green wall, and a green roof.

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

The college installs only waterless urinals and metered or sensor-driven faucets. Low-flow aerators have been installed. Low-flow toilets/valves were installed in the Arts building, replacing old high water usage toilets. The college installs WaterSense products where feasible. We also bought self-watering planters that store water and feed it up through the base, reducing water usage. The College has a sprinkler system on the athletic fields that runs on a schedule and has a moisture sensor.

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:

Non-potable rainwater is used in toilets in Bateman and Workforce, irrigating a green wall and a green roof, the enabling garden, and for watering plants. Assume 300 flushes/day in Bateman and 200/day in Workforce. Assume 1.2gpf and 240 days per year. For green wall, assume 5g every day. For green roof, assume 25 g/day for 3 months. For enabling garden, assume 25g/day for 3 months. For watering, assume 250g/week for 3 months. So total non-potable water usage is 144,000 + 1,825 + 3,000 + 3,000 + 3,000 = 154,825.