Resource Recovery South Plant demonstration projects
Groco demonstration garden | CitySoil Farm | Research and reports | Awards | Resources | Volunteer
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GroCo demonstration garden
Demonstrating the beauty, effectiveness and safety of using recycled nutrients on your garden.
Currently, the beds are amended with GroCo compost made with Loop, Cedar Grove Compost, and organic fertilizer. Beds are planted with a variety of flowers, food crops, annuals and perennials.
King County, Seattle University and the Salvation Army Renton Food Bank have partnered on a 5-year community farm project located on one acre of the South Treatment Plant facility in Renton, WA.
This project was designed and permitted to benefit the wastewater utility and the public by:
- Demonstrating the use of GroCo compost made with Loop® biosolids and increasing public understanding of the benefits of recycling carbon and nutrients.
- Providing an active learning site for the Seattle University Environmental Studies Urban Agriculture students.
- Creating a locally grown supply of fresh produce for the Renton Food Bank.
- Providing community education opportunities to expand knowledge of local water and food system challenges and solutions.
- Demonstrating the benefits of diversified and collaborative urban land use and the potential for material and resource sharing and conservation. Since start up in 2011, large quantities of lansdscaping waste and surplus building materials have been repurposed and recycled on site; reducing transportation and disposal costs to the utility and providing a cost effective source of materials and supplies for the farm.
Research and reports
- 2011 Annual Report, Seattle University Sustainable Urban Agriculture Project at the King County South Wastewater Treatment Plant (PDF, 980KB)
- Growth and Physiology of Horticultural Crops Irrigated with Municipal Reclaimed Water in King County, Washington, July 2010 (PDF)
- Research to demonstrate the safety of reclaimed water for edible food crops, September 16, 2009 (PDF, 109KB)
- Growth and Physiology of Horticultural Crops Irrigated with Reclaimed Water, September 14, 2009 (PDF, 900KB)
Volunteer and Support
- Work and learn parties -2nd Saturday of each month beginnning February 8th. 9 a.m.-1p.m. rsvp for site access directions 206-477-5448. Special projects set up monthly; treatment plant tours available after from 1-2:30.
- Volunteer opportunities available throughout the week, during the mornings into early afternoon (avoiding heat of the day!), for groups of 10 or more the volunteer experience will include education on topics specific to your interests and season appropriate. Children are welcome with parent/guardian present.
- Service learning projects for schools and organizations can be scheduled between March and November.
- Donations of plants (herbs, fruit trees, perennial flowers), expertise, new or gently used materials and tools, and financial donations are always welcome. Seattle University is a 501c3 institution and your donations are tax deductible.
- If you are an individual or small group interested in volunteering on a regular basis please contact Casey Plank at 206-477-5448 or email@example.com.
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