Overall Rating Silver
Overall Score 51.07
Liaison Adam Maurer
Submission Date March 31, 2021

STARS v2.2

South Seattle College
OP-22: Rainwater Management

Status Score Responsible Party
Complete 2.00 / 2.00 Adam Maurer
District Sustainability Coordinator
Office of Sustainability
"---" 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:

Underground detention system for runoff from south parking lot and Olympic building roof filters runoff before entering storm drain. For roofs and landscapes there are 4 tanks (capacity of 1k-2k gal/tank) all underground. Tanks are inspected annually. There are several rain gardens throughout campus to slow and absorb rainwater.

The Georgetown Building C Expansion, Gene J. Colin building is certified LEED silver. Some green infrastructure was included in that project, including bioswales surrounding the parking lot to collect and slow-down runoff.

There are several green infrastructure installments at South Seattle. A natural bioswale, designed to capture stormwater for irrigation, is included in the landscape of the University Center building. At the Georgetown campus, there are natural bioswales to control stormwater and a green roof. There are several rain gardens on main campus, including one for the University Center, two around the Chan building, and one at Cascade Hall.


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

South Seattle College is located within the City of Seattle, which mandates the use of low-impact development practices through its Stormwater Municipal Code (Title 22, Subtitle VIII). The code requires stormwater discharge be appropriately managed on parcel-based projects through soil amendment, on-site stormwater management, flow control, and water quality treatment. All buildings on South Seattle's campus comply with these stringent codes, with many featuring stormwater retention tanks or detention features such as rain gardens.

Furthermore, South Seattle College has made a commitment to building all future buildings and major renovations to LEED Silver standards. The USGBC LEED credit for rain management intends, [t]o limit disruption of natural hydrology by reducing impervious cover, increasing on-site infiltration, reducing or eliminating pollution from stormwater runoff and eliminating contaminants." Low Impact Development (LID) is one strategy used to achieve this LEED credit and intent, among others.

City of Seattle Stormwater Municipal Code (title 22, Subtitle VIII), https://library.municode.com/wa/seattle/codes/municipal_code?nodeId=TIT22BUCOCO_SUBTITLE_VIIISTCO_CH22.801DE

City of Seattle Storm water management:
https://www.seattle.gov/utilities/about/plans/drainage-and-sewer/stormwater-management-plan

USGBC rainwater management credit:
https://www.usgbc.org/credits/new-construction-core-and-shell-schools-new-construction-retail-n
ew-construction-hospitali-5

Seattle Colleges' Sustainability Plan: LEED Silver commitment, http://sustainability.seattlecolleges.edu/wp-content/uploads/2020/11/SeattleColleges_SustainabilityPlan2017-2023_update2020.11.pdf

South Seattle College Major Institutional Master Plan (MIMP), https://southseattle.edu/sites/default/files/inline-files/SouthSeattleCollege-MIMP.pdf


Website URL where information about the institution’s green infrastructure and LID practices is available:
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Additional documentation to support the submission:
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