Overall Rating Gold - expired
Overall Score 66.59
Liaison Jennifer deHart
Submission Date Oct. 30, 2014
Executive Letter Download

STARS v2.0

Unity College
OP-27: Rainwater Management

Status Score Responsible Party
Complete 0.00 / 2.00 Steve Kahl
Director of Sustainability
"---" indicates that no data was submitted for this field

Does the institution use Low Impact Development (LID) practices as a matter of policy or standard practice to reduce rainwater/stormwater runoff volume and improve outgoing water quality for new construction, major renovation, and other projects?:

A brief description of the institution’s Low Impact Development (LID) practices:

All construction has met DEP permitting requirements for stormwater management but not LID practices This has primarily included constructing proper drainage and filter systems around new construction. Our current permit includes the creation of a retention pond that was be sized appropriately to treat all current campus stormwater and any foreseeable addition from construction in keeping with the Campus Master Plan.

Has the institution adopted a rainwater/stormwater management policy, plan, or strategies that mitigate the rainwater runoff impacts of ongoing campus operations through the use of green infrastructure? :

A brief description of the institution’s rainwater/stormwater management policy, plan, and/or strategies for ongoing campus operations:

Stormwater management entails routing all runoff to a stormwater pond

A brief description of any rainwater harvesting employed by the institution:


Rainwater harvested directly and stored/used by the institution, performance year:
0 Gallons

A brief description of any rainwater filtering systems employed by the institution to treat water prior to release:


A brief description of any living or vegetated roofs on campus:

The net zero energy Unity House was structurally designed for a green roof, which is planned for 2015.

A brief description of any porous (i.e. permeable) paving employed by the institution:

A porous asphalt parking lot was proposed for the new residence hall (Unity 2) but the consultant applied for impervious asphalt in the permit.

A brief description of any downspout disconnection employed by the institution:


A brief description of any rain gardens on campus:

The stormwater management plan that resulted in the stormwater detention pond includes a rain garden in the center of campus near the library, as well as drainage swales with flow impeding structures. Nearly all campus runoff flows through grassed swales (or better) structures

A brief description of any stormwater retention and/or detention ponds employed by the institution:

Construction of a retention pond covering all campus stormwater runoff was completed in 2011. Capacity and function of this pond will satisfy DEP requirements for stormwater management even with consideration for future building and grounds alterations.

A brief description of any bioswales on campus (vegetated, compost or stone):

A brief description of any other rainwater management technologies or strategies employed by the institution:

The website URL where information about the institution’s rainwater management initiatives, plan or policy 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 and complete the Data Inquiry Form.