Williams College
OP-1: Emissions Inventory and Disclosure
| Status | Score | Responsible Party |
|---|---|---|
|
2.19 / 3.00 |
Mike
Evans Assistant Director Zilkha Center |
Has the institution conducted a GHG emissions inventory within the previous three years that includes all Scope 1 and 2 emissions? :
A copy of the most recent GHG emissions inventory:
A brief description of the methodology and/or tool used to complete the GHG emissions inventory:
For FY21, the college's GHG emissions inventory was completed by a third party using data collected from all relevant college operating departments. The calculations were conducted using SIMAP.
Has the GHG emissions inventory been validated internally by personnel who are independent of the GHG accounting and reporting process and/or verified by an independent, external third party?:
A brief description of the GHG inventory verification process:
The GHG Emissions Report was shared with the members of the college's Climate Action Planning Group (CAPG) and the members of the Campus Environmental Advisory Committee (CEAC). While CAPG is involved in campus climate action planning and implementation and includes staff such as our utility engineer, central plant manager and Assistant VP for Planning, Design and Construction, CEAC is not directly involved in GHG emissions accounting and reporting processes. CEAC members include: faculty, staff and students who share an interest in advancing environmental and sustainability action on campus.
Documentation to support the GHG inventory verification process:
Gross Scope 1 GHG emissions, performance year:
| Weight in MTCO2e | |
| Stationary combustion | 11,138 Metric tons of CO2 equivalent |
| Other sources (mobile combustion, process emissions, fugitive emissions) | 281 Metric tons of CO2 equivalent |
Total gross Scope 1 GHG emissions, performance year:
Gross Scope 2 GHG emissions, performance year (market-based):
| Weight in MTCO2e | |
| Imported electricity | 4,280 Metric tons of CO2 equivalent |
| Imported thermal energy | 0 Metric tons of CO2 equivalent |
Total gross Scope 2 GHG emissions, performance year:
Gross GHG emissions from biogenic sources, performance year:
Does the GHG emissions inventory include Scope 3 emissions from the following sources?:
| Yes or No | Weight in MTCO2e | |
| Business travel | Yes | 695 Metric tons of CO2 equivalent |
| Commuting | No | --- |
| Purchased goods and services | No | --- |
| Capital goods | No | --- |
| Fuel- and energy-related activities not included in Scope 1 or Scope 2 | Yes | 116 Metric tons of CO2 equivalent |
| Waste generated in operations | Yes | 296 Metric tons of CO2 equivalent |
| Other sources | --- | --- |
Total Scope 3 GHG emissions, performance year:
A brief description of how the institution accounted for its Scope 3 emissions:
For air travel, the Zilkha Center used origin and destination data collected by the controller's office from college purchasing cards. A student intern worked with the IT department to develop a scrip that calculated mileage between airpots.
For waste, the college's waste haulers report municipal solid waste, recycling, and compost hauled.
Has the institution completed an inventory within the previous three years to quantify its air pollutant emissions?:
Annual weight of emissions for::
| Weight of Emissions | |
| Nitrogen oxides (NOx) | 5.82 Tons |
| Sulfur oxides (SOx) | 0.07 Tons |
| Carbon monoxide (CO) | 8.28 Tons |
| Particulate matter (PM) | 0.40 Tons |
| Ozone (O3) | --- |
| Lead (Pb) | 0.00 Tons |
| Hazardous air pollutants (HAPs) | 0.12 Tons |
| Ozone-depleting compounds (ODCs) | --- |
| Other standard categories of air emissions identified in permits and/or regulations | --- |
Do the air pollutant emissions figures provided include the following sources?:
| Yes or No | |
| Major stationary sources | --- |
| Area sources | --- |
| Mobile sources | --- |
| Commuting | --- |
| Off-site electricity production | --- |
A brief description of the methodology(ies) the institution used to complete its air emissions inventory:
The Williams College Safety and Environmental Compliance department completes an annual greenhouse gas emissions report that includes mobile and stationary sources. One component of this is compiling the fuel usage of all sources from invoices. They also check generator runtime. With those data, an emissions factor generated from either a stack test or the AP42 emissions test (from EPA) can then provide the emissions for each of these pollutants.
Gross Scope 2 GHG emissions from purchased electricity (location-based):
Gross Scope 2 GHG emissions from imported thermal energy (location-based) :
Website URL where information about the institution’s emissions inventories is available:
Additional documentation to support the submission:
Data source(s) and notes about the submission:
Ozone is not a reportable number because it is created in the atmosphere with sunlight - while we can track ozone-depleting compounds, we cannot/do not track ozone as an emission.
Ozone is not a reportable number because it is created in the atmosphere with sunlight - while we can track ozone-depleting compounds, we cannot/do not track ozone as an emission.
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.