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South Lake Refuse
& Recycling Services


History of Composting at Upper Valley Recycling

Upper Valley Recycling & Compost has a rich history in providing Napa Valley agricultural and neighboring farm communities with balanced organic compost for their farming practices since 1992.  Upper Valley Recycling & Compost understands that feeding soil with balanced organic nutrients is important in farming to provide you with the yields of fruit expected each year. It has always been our mission that our compost operation has helped our great agricultural industry.

It has always been our mission to partner with our local community to produce an excellent compost to benefit the world-renowned California agricultural industry.

Our compost is a cost-effective farming practice and its use has many benefits. The high organic nutrient content High including nitrogen & calcium, breathes life into depleted soils.

  • It increases water retention
  • It aids drainage in clay or heavy soils
  • It reduces soil diseases
  • It works as a natural option for weed suppression
  • Research shows application in vineyards has produced greater leaf growth & yield
  • Choosing local reduces the carbon footprint of trucking& closes the loop on sustainability
  • When you use compost and work to keep organics out of the landfill, you are helping protect our planet from the consequences of climate change.

Find out more by visiting our Residential Compost or Commercial Compost pages.

Our Products

The basis for our compost blends is Napa Valley grape pomace derived from post-harvest and winemaking production grape seeds, skins and stems. Research-tested, these organic soil amendments applied at given ratios can increase crop yields and bring vitality back to depleted soils.

Harvest Compost

Harvest Compost is made from post-harvest grape seeds, skins, and stems then blended with 1/3 green waste. This material is composted using an aerated static pile system.

We only sell this material in quantities of 5-yards or more, and will not load any pickup trucks or vehicles that don’t meet this threshold. Deliveries must be 20 yards or more.

Listed with: OMRI, Organic Materials Research Institute and the California Department of Food and Agriculture as an organic output material.

Download our 2022 Harvest Compost Analytics Report.

Price per ton FOB: $25.00

Price for 5 Yards: $75.00

Wood Chips

Green and wood material is ground and screened to 3/8 inch. It makes an excellent ground cover and can be used for erosion control. Consider this as an alternative product to straw for land recently affected by California fires.

Deliveries must be 20 yards or more.

Price per ton FOB: $20.00 

Price for 5 Yards: $75.00


Our Harvest Compost is Organic Input Material with the California State Department of Food and Agriculture. It is also registered with the Organic Material Research Institute.

Facility information


Please call or use the inquiry form below for pricing and information. Additional transportation fees may be required

Frequently asked questions

Our compost is approximately 2 yards to 1 ton.
Unfortunately, we aren’t able to sell our compost in quantities less than 5 yards. However, Harold Smith & Son sells our compost in smaller quantities, so we suggest you buy it from them. They are located at 1505 Charter Oak Ave, St. Helena, CA 94574.

Give us a call or complete the form below.


Compost Sales


South Lake Refuse & Recycling has been owned and operated by the Pestoni Family since 1980. The South Lake Refuse & Recycling team has a strong commitment to community and environmental stewardship. In the late 1990s Quackenbush Materials Resource Recovery and Compost facility was permitted and became operational, a partner company to SLR&R. We are proud to offer Certified Organic Compost, top soil and woodchips for your agricultural crops, local landscape projects and home garden use.

© 2022 South Lake Refuse & Recycling 

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