| Overall Rating | Gold - expired |
|---|---|
| Overall Score | 68.95 |
| Liaison | Brandon Trelstad |
| Submission Date | May 11, 2013 |
| Executive Letter | Download |
Oregon State University
OP-23: Stormwater Management
| Status | Score | Responsible Party |
|---|---|---|
|
2.00 / 2.00 |
Brandon
Trelstad Sustainability Coordinator Sustainability Office |
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indicates that no data was submitted for this field
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Does the institution have a policy, plan, and/or strategies to reduce stormwater runoff from new development projects? :
Yes
None
Does the institution have a policy, plan, and/or strategies to reduce stormwater runoff from ongoing campus operations? :
Yes
None
A brief description of the institution's stormwater management initiatives:
The City of Corvallis requires that new construction over 2,000 sq. ft. obtain an Erosion Prevention Sediment Control (EPSC) permit, create an EPSC plan and submit to regular inspections.
For ongoing operations, the City has stringent requirements for water quality and quantity. Facilities with over 25,000 sq. ft of impervious surface must be so detention rates do not exceed pre-development conditions based on the 2yr through 10yr, 24 hour storm. Projects creating 5,000 square feet or more of pollution generating impervious surface (pavement accessible to motor vehicles) must be designed to remove 70% of Total Suspended Solids for 2/3 of the 2 year, 24 hour storm.
http://www.ci.corvallis.or.us/downloads/cd/PLANNING/2006 LDC/CHAPTER 4.0 - Improvements.pdf
http://www.ci.corvallis.or.us/index.php?option=com_content&task=view&id=1294&Itemid=1638
The City of Corvallis often references the King County, Washington Surface Water Design Manual when specifying design criteria for stormwater system.
None
The website URL where information about the institution's stormwater management initiatives, plan or policy is available:
None
Does the institution have a living or vegetated roof?:
No
None
A brief description of the institution's living or vegetated roof:
No large scale green roof has been completed yet. A crop and soil sciences professor and students have assembled OSU's first living roof on a tool shed.
None
Does the institution have porous paving?:
Yes
None
A brief description of the institution's porous paving:
OSU has pervious paving at multiple locations including several parking lots and People's Park.
The parking lot uses pervious asphalt, while the Park site is pervious concrete, demonstrating the viability of both technologies.
None
Does the institution have retention ponds?:
Yes
None
A brief description of the institution's retention ponds:
Retention ponds are used throughout campus to meet the City of Corvallis' stormwater design specifications. Most ponds are small (<15' in diameter) and most are located near newer projects, which have higher standards for stormwater treatment and retention.
None
Does the institution have stone swales?:
No
None
A brief description of the institution's stone swales:
Our swales are a combination stone and vegetated.
None
Does the institution have vegetated swales?:
Yes
None
A brief description of the institution's vegetated swales:
Bioswales at Reser Stadium and Magruder Hall treat and retain stormwater from nearby roadways and parking lots.
The large swale (approx. 20'W x 150'long) at Reser stadium retains water from a large portion of campus.
None
Does the institution employ any other technologies or strategies for stormwater management?:
Yes
None
A brief description of other technologies or strategies for stormwater management employed:
Rainwater is collected then organically & mechanically filtered, and stored at Kelley Engineering, in a 16,500 gallon cistern system.
Stormwater from the roof of Kearney Hall is filtered and retained by the building landscape before it enters the stormwater system. OSU's LEED Platinum Energy Center uses rainwater for boiler make up water, reducing both city water consumption and the need for treatment (rainwater has a more appropriate chemical balance).
Numerous detention manholes and filter manholes are present on campus. While they do not let water infiltrate, their sediment reduction properties are excellent when a swale cannot be used due to cost or space constraints.
Data source(s) and notes about the submission:
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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.