Overall Rating Gold
Overall Score 71.29
Liaison Holly Andersen
Submission Date March 30, 2022

STARS v2.2

Bennington College
OP-22: Rainwater Management

Status Score Responsible Party
Complete 2.00 / 2.00
"---" indicates that no data was submitted for this field

Which of the following best describes the institution’s approach to rainwater management?:
Comprehensive policies, plans or guidelines that require LID practices for all new projects

A brief description of the institution’s green infrastructure and LID practices:

The College promotes infiltration of stormwater runoff wherever feasible, while siting and designing treatment systems that fit with and take advantage of existing site constraints and conditions. While the College has two standard detention and attenuation basins (Biomass Facility and Student Center), the VAPA/CAPA system is a wetland type system which has created a thriving habitat, while still providing stormwater treatment and site in a location which is virtually unnoticeable unless you know what you are looking for. The new Commons stormwater treatment system is a bioretention filter, which also allows for infiltration of runoff under most conditions. The designed incorporated the College’s existing collection system and was site at the end of the their existing discharge which allowed them to incorporate the vegetated system into an existing grass field and limit the amount of additional hard infrastructure necessary to complete the design.


A copy of the institution’s rainwater management policy, plan, and/or guidelines:
A brief description of the institution’s rainwater management policy, plan, and/or guidelines that supports the responses above:

Bennington College follows all rainwater management policies and guidelines as listed in the land use ACT 250 for the state of Vermont.


Website URL where information about the institution’s green infrastructure and LID practices is available:
Additional documentation to support the submission:
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The College use the State’s SW Management Manual to size its stormwater treatment and LID practices. In general, all SW treatment systems are sized to meet current water quality standards (1 in of rainfall over a 24 hour period) and promote infiltration where possible. Treatment systems are also sized to accommodate larger storm events to ensure proper attenuation for larger storm events. Precipitation data used to size these systems follows with the current State SW Treatment Manual.

The water quality standard is 1in/24 hours which accounts for approximately 90% of all regional rainfall events annually.

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 and complete the Data Inquiry Form.