| Overall Rating | Gold - expired |
|---|---|
| Overall Score | 66.00 |
| Liaison | Richard Demerjian |
| Submission Date | May 24, 2013 |
| Executive Letter | Download |
University of California, Irvine
OP-T2-23: Landscape Waste Composting
| Status | Score | Responsible Party |
|---|---|---|
|
0.25 / 0.25 |
Anne
Krieghoff Solid Waste and Recycling Manager Facilities Management |
Does the institution compost or mulch waste from grounds keeping, including grass trimmings?:
A brief description of the composting or mulching program:
UC Irvine composts or mulches 100% of its landscape waste. In 2012, the green waste totaled 2,216 tons. The campus uses two methods of mulching: It uses self-mulching mowers on grass and annually chips 150-plus tons of tree limb material for planting beds and park trails on campus. The remaining green waste is collected daily by grounds keepers as they clip and trim, and is separated by source in the campus's recycle yard. The material remains in this state for two to three days to reduce moisture content and volume. The green waste is then loaded into 40-yard containers that typically hold 8 tons. UC Irvine takes two or three of these containers weekly to Waste Management's Sunset Transfer Station, which is 4 miles from campus. The material is ground and then taken another 8 miles, in even larger loads, to Tierra Verde located in the Great Park in Irvine, where it is composted using the traditional windrow method. The "cured" compost is sold by Tierra Verde in bulk or bags.
The percentage of landscape waste that is mulched or composted onsite:
The percentage of landscape waste that is mulched or composted off-site:
The website URL where information about the program, policy, or practice is available:
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.