| Overall Rating | Gold - expired |
|---|---|
| Overall Score | 75.65 |
| Liaison | Maddie LoDico |
| Submission Date | Dec. 12, 2014 |
| Executive Letter | Download |
Colby College
OP-27: Rainwater Management
| Status | Score | Responsible Party |
|---|---|---|
|
2.00 / 2.00 |
Dale
DeBlois Project Manager Facilities Services |
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:
As a part of Colby's Low Impact Development practices, we have eight water runoff locations designed to treat rainwater and stormwater through low impact strategies. These runoff locations are meant to remove any salt, sands, chemicals, and other sediments before the water is released. Dale Deblois, the Environmental Program Manager at Colby, checks each of the eight runoff locations twice a year to monitor their operation and perform maintenance as required. On average, each system is cleaned out for precipitated salts, sands, and other sediments every five to ten years, or as required. One of our major runoff treatment areas is behind the Colby Green, which contains three large ponds - more than enough to accommodate the current campus and any planned updates to our campus as outlined in our 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:
Our Low Impact Development practices also apply to ongoing campus operations. In addition to our eight storm water runoff locations as described above, we have vegetated swales, stone swales, and planting barries to manage stormwater runoff around Johnson Pond.
A brief description of any rainwater harvesting employed by the institution:
Because we only use native and naturalized species in any new landscaping projects, irrigating--and therefore rainwater harvesting--is largely unnecessary.
Rainwater harvested directly and stored/used by the institution, performance year:
A brief description of any rainwater filtering systems employed by the institution to treat water prior to release:
Our rainwater filtering systems are the same as those used for our Low Impact Development practices, as described above.
A brief description of any living or vegetated roofs on campus:
N/A
A brief description of any porous (i.e. permeable) paving employed by the institution:
N/A
A brief description of any downspout disconnection employed by the institution:
N/A
A brief description of any rain gardens on campus:
Colby has buffer zones and rain gardens at Johnson pond with native and naturalized species in order to filter the water, remove sediment and prevent pollutants from entering Johnson Pond. This system was designed to filter stormwater run-off in order to protect ecosystem diversity at the Pond.
A brief description of any stormwater retention and/or detention ponds employed by the institution:
Our storm water detention system, including our eight runoff ponds, are described in our Low Impact Development practices above.
A brief description of any bioswales on campus (vegetated, compost or stone):
There are several erosion control barriers around Johnson Pond lined with vegetation and stones designed to filter stormwater runoff.
A brief description of any other rainwater management technologies or strategies employed by the institution:
Our rainwater management strategies are the same as those highlighted in our Low Impact Development practices above.
The website URL where information about the institution’s rainwater management initiatives, plan or policy is available:
Date Revised: Jan. 5, 2015
Data source(s) and notes about the submission:
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.