Overall Rating Gold - expired
Overall Score 66.99
Liaison Alyssa Erding
Submission Date July 18, 2014
Executive Letter Download

STARS v2.0

Macalester College
OP-2: Outdoor Air Quality

Status Score Responsible Party
Complete 0.50 / 1.00 Curt Stainbrook
Mechanical Systems Manager
Facilities Services
"---" indicates that no data was submitted for this field

Does the institution have policies and/or guidelines in place to improve outdoor air quality and minimize air pollutant emissions from mobile sources?:

A brief description of the policies and/or guidelines to improve outdoor air quality and minimize air pollutant emissions from mobile sources:

No formal policy or guideline, however we consciously select electric maintenance vehicles when replacing older internal combustion models.

Has the institution completed an inventory of significant air emissions from stationary sources on campus?:

A brief description of the methodology(ies) the institution used to complete its air emissions inventory:

We track the amount and type of fuel used to generate steam from the boilers in the central heating plant, along with an estimate of the fuel used to produce electricity from our emergency generators (based on number of hours run). These figures are submitted to the state and used to calculate a fee based on our portion of the various pollutants associated with these fuels. The estimated amounts the state determines we have contributed for 2013 are indicated below.

Weight of the following categories of air emissions from stationary sources::
Weight of Emissions
Nitrogen oxides (NOx) 3.87 Tons
Sulfur oxides (SOx) 0.03 Tons
Carbon monoxide (CO) ---
Particulate matter (PM) 0.02 Tons
Ozone (O3) ---
Lead (Pb) ---
Hazardous air pollutants (HAPs) ---
Ozone-depleting compounds (ODCs) ---
Other standard categories of air emissions identified in permits and/or regulations 0.21 Tons

A brief description of the institution’s initiatives to minimize air pollutant emissions from stationary sources, including efforts made during the previous three years:

Eliminated #6 fuel oil use by replacing two older dual fuel boilers with one larger one that uses natural gas as its primary fuel source and #2 fuel oil for curtailment periods.

We replace old residential boilers with high efficiency, variable speed, condensing types, which are sized to match improvements to the structures envelope (typically fewer btu's required).

The website URL where information about the institution’s outdoor air quality policies, guidelines or inventory is available:

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.