Williams College
OP-19: Waste Minimization and Diversion

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• Credit Info

Figures needed to determine total waste generated (and diverted):

	Performance Year	Baseline Year
Materials recycled	161.87 Tons	193 Tons
Materials composted	63.56 Tons	0 Tons
Materials donated or re-sold	0 Tons	0 Tons
Materials disposed through post-recycling residual conversion	0 Tons	0 Tons
Materials disposed in a solid waste landfill or incinerator	733.50 Tons	696 Tons
Total waste generated	958.93 Tons	889 Tons

A brief description of the residual conversion facility, including affirmation that materials are sorted prior to conversion to recover recyclables and compostable materials:
Start and end dates of the performance year and baseline year (or three-year periods):

	Start Date	End Date
Performance Year	Jan. 1, 2018	Dec. 31, 2018
Baseline Year	July 1, 2009	June 30, 2010

A brief description of when and why the waste generation baseline was adopted (e.g. in sustainability plans and policies or in the context of other reporting obligations):
Figures needed to determine "Weighted Campus Users”:

	Performance Year	Baseline Year
Number of students resident on-site	1,966	1,984
Number of employees resident on-site	106	124
Number of other individuals resident on-site and/or staffed hospital beds	70	0
Total full-time equivalent student enrollment	2,073	2,088
Full-time equivalent of employees (staff + faculty)	1,125	1,050
Full-time equivalent of students enrolled exclusively in distance education	0	0
Weighted campus users	2,986.50	2,880.50

Total waste generated per weighted campus user:

	Performance Year	Baseline Year
Total waste generated per weighted campus user	0.32 Tons	0.31 Tons

Percentage reduction in total waste generated per weighted campus user from baseline:
Percentage of materials diverted from the landfill or incinerator by recycling, composting, donating or re-selling, performance year:
Percentage of materials diverted from the landfill or incinerator (including up to 10 percent attributable to post-recycling residual conversion):
In the waste figures reported above, has the institution recycled, composted, donated and/or re-sold the following materials?:

	Yes or No
Paper, plastics, glass, metals, and other recyclable containers	Yes
Food	Yes
Cooking oil	Yes
Plant materials	Yes
Animal bedding	No
White goods (i.e. appliances)	Yes
Laboratory equipment	Yes
Furniture	Yes
Residence hall move-in/move-out waste	Yes
Scrap metal	Yes
Pallets	Yes
Tires	Yes
Other (please specify below)	No

A brief description of other materials the institution has recycled, composted, donated and/or re-sold:
Materials intended for disposal but subsequently recovered and reused on campus, performance year (e.g. materials that are actively diverted from the landfill or incinerator and refurbished/repurposed) :
Does the institution use single stream recycling (a single container for commingled recyclables) to collect standard recyclables (i.e. paper, plastic, glass, metals) in common areas?:
Does the institution use dual stream (two separate containers for recyclables, e.g. one for paper and another for plastic, glass, and metals) to collect standard recyclables (i.e. paper, plastic, glass, metals) in common areas?:
Does the institution use multi-stream recycling (multiple containers that further separate different types of materials) to collect standard recyclables (i.e. paper, plastic, glass, metals) in common areas?:
Average contamination rate for the institution’s recycling program (percentage, 0-100):
A brief description of any recycling quality control mechanisms employed, e.g. efforts to minimize contamination and/or monitor the discard rates of the materials recovery facilities and mills to which materials are diverted:
A brief description of the institution's waste-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 waste audits and other initiatives to assess its materials management efforts and identify areas for improvement:
A brief description of the institution's procurement policies designed to prevent waste (e.g. by minimizing packaging and purchasing in bulk):
A brief description of the institution's surplus department or formal office supplies exchange program that facilitates reuse of materials:
A brief description of the institution's platforms to encourage peer-to-peer exchange and reuse (e.g. of electronics, furnishings, books and other goods):
A brief description of the institution's limits on paper and ink consumption (e.g. restricting free printing and/or mandating doubled-sided printing in libraries and computer labs):
A brief description of the institution's initiatives to make materials (e.g. course catalogs, course schedules, and directories) available online by default rather than printing them:
A brief description of the institution's program to reduce residence hall move-in/move-out waste:
A brief description of the institution's programs or initiatives to recover and reuse other materials intended for disposal:
The website URL where information about the programs or initiatives is available:
Additional documentation to support the submission:
Data source(s) and notes about the submission: