Graph of Waste Diversion Rate 2008-2016

Updated 1/31/17

Table of The Waste Diversion Rate

Fiscal Year  Recycling Rate
2016 43%
2015 44%
2014 43%
2013 40%
2012 40%
2011 36%
2010 36%
2009 30%
2008 29%

Updated 1/31/17

How is the Rate Calculated?

The County of Kauai bases it's Recycling Rate on the amount of material that is diverted from the landfill over the total amount of material that is put into the landfill. This includes both residential and commercial diversion and disposal.

Diversion/Total Waste Generation = Waste Diversion Rate

Mathematics is the art of giving the same name to different things.~ Henri Poincaré

How does the County calculate tonnage?

The County surveys companies across the island and track amounts hauled and disposed of at the landfill as well as recycled. The County also uses annual reports filed by companies to the Department of Health pertaining to their diversion and recycling efforts.

The County tracks recycled material deposited in Kauai Recycles drop bins as well as the Kauai Resource Center. 

Click the PDF to see how the County converts volume reported data to tonnage.  Tonnage Conversion Table.pdf

2016 Top 10 Diverted Materials Estimated in Tons

   Material  Tons/Year
1)  Greenwaste 25,361   
2) Concrete & Asphalt 17,886
3)  Metal (Ferrous/Non-Ferrous) 5,035
4)  Cardboard 3,695
5)  Glass (includes HI5 and non-HI5)     3,554    
6)  Home Composting 2,915
7)  *Food Waste 1,806
8)  Plastic Film (Backhaul)                            800
9)  Mixed paper (not including newspaper)    691
10)  Pallets (Backhaul)    550


*Food Waste includes donated foods distributed through non-profits and food waste processed as animal feed.

Backhaul refers to the shipment of reusable or recyclable material back to the stores own warehouses in the mainland for processing. 

Full Calculation Breakdown- 2016 Calculation Summary

Previous Years Breakdown- 2015 Calculation Summary

References to scrap metal includes processed appliances and automobiles.

Updated 1/31/17

Waste Characterization

Waste Characterization is the composition of waste deposited at a landfill. In 2007 the Solid Waste Department contracted a waste characterization of the Kekaha Landfill. An updated characterization will be conducted in the upcoming fiscal year to reevaluate the current status of the Kekaha Landfill and the effects of Kauai's waste diversion programs.

Kekaha Landfill 2007 Waste Characterization

Waste Characterization Subcategories

The Waste characterization categories contain a variety of subcategories, each with different qualities. You can see these categories and their makeup in the Kekaha Landfill below.

Kauai Waste Categories.pdf
Detailed Subcategory Waste Characterization by Weight.pdf