Upper Valley
Disposal & Recycling Services

Hours of Operation

Open to General Public 
Tuesday – Saturday: 9:00 a.m. – 4:00 p.m.

Sunday: 9:00 a.m. – 3:00 p.m.

Recycling Drop Off 
Tuesday – Saturday: 9:00 a.m. – 4:00 p.m.

Closed Sunday and Monday

The CRV Buyback Center is now open!

Tuesday – Saturday: 9:00 a.m. – 4:00 p.m. 

Closed Sunday and Monday

Please note, payments are made by check only!  

Holiday Closures:

Closed Easter (Sunday, 4/17/2022),  Thanksgiving (Thursday, November 24, 2022), Christmas (Sunday, 12/25/2022), New Year’s (Sunday, 1/1/2023).

We are closed Mondays including the following holidays: Presidents’ Day, Memorial Day, Independence Day and Labor Day.

Holiday Adjusted Hours
(Christmas Eve and New Year’s Eve ONLY): 8:00 a.m. – 12:00 p.m.

Facility Address
4380 Silverado Trail, Calistoga, CA 94515

Download Clover Flat Self Haul Guides

Clover Flat Guide English Thumbnail of PDF
Clover Flat Self Haul Guide
Clover Flat Guide Spanish Thumbnail of PDF
Clover Flat Self Haul Guide

Materials Accepted for a Fee

Rates effective as of October 1st, 2023. Clover Flat Landfill no longer charges by the yard.


General Refuse (i.e., Municipal Solid Waste, Trash, Garbage, Refuse, etc.)$127.00$127.00

Loads not properly covered per California Vehicle Code will be charged an additional $35 per load.


Clean Green Waste $70.00 $94.00
Clean Wood Waste $70.00 $94.00


Mixed Construction & Demolition $90.00 $127.00
Concrete / Asphalt – Clean $100.00 $100.00
Asbestos Non-Friable $70.00 $70.00
Treated Wood Waste $200.00  $200.00




Loads not properly covered per California Vehicle Code$35.00per load
Bury Immediately & Special Handling of Materials$150.00surcharge
Offloading Assistance (non-hazardous materials only)$75.00minimum charge
Offloading Assistance (non-hazardous materials only)$150.00per hour




Water Heaters$35.00each
Washers / Dryers$35.00each
Mattresses (commercial)$35.00each
Box Spring (commercial)$35.00each
Propane Tanks$35.00each
Refrigerators and Air Conditioners$65.00each
Microwave Ovens$35.00each
Gas Power Blowers (fuel removed)$35.00each
Mobile Homes (must be empty)Varieseach
Recreational Vehicle / Motor Home (refuse per ton rate plus surcharge)Variessurcharge
Tires, Auto & Truck (inside diameter less than 16”)*$28.00each
Tires, Tractor (inside diameter over 22”)*$165.00each

*Add $3.00 for tires on rims

Household Hazardous Waste (HHW)

Dispose of materials like batteries, paints and household cleaners properly at the Napa County HHW Facility.

Napa Compost Sales!

We sell compost made from the food scraps and yard waste we collect.

Materials Accepted at no charge: residential customers only

The following items may be dropped off at no charge.

  • Sharps in sealed containers
  • Bottles & Cans
  • Light Bulbs & Fluorescent Tubes
  • Cardboard & Paper
  • Cooking Oil
  • Batteries
  • Latex Paint
  • Other Paint Care Products with Labels On
  • Anti-Freeze
  • Motor Oil
  • Mattresses (residential only)
  • Box Springs (residential only)
  • TV / Monitors (CRT’s) – All Sizes
  • E-Waste

Materials we accept but do not process

Materials that we accept we do not process on site include: treated wood waste, e-waste, paint care program materials, SHARPS, tires, mattresses, used motor oil and filters, cooking oil, glass, metals, plastics, fibers and more.

New State Law Requirements for Self-Haul Organic Waste

The SB 1383, California’s Short-Lived Climate Pollutant Reduction Strategy, require commercial organic waste generators, including landscapers, to maintain certain records if they comply with the organic waste collection service requirement by self-hauling their generated organic waste. (Title 14, Chapter 12, Article 3, Section 18984.9) 

The records commercial businesses that self-haul must keep are:

  • Delivery receipts and weight tickets from each entity receiving organic materials, including the amount of organic material in cubic yards or tons.
  • If the organic waste is transported to a site that does not have scales or that employs scales incapable of weighing the waste received, the self-hauler is not required to record the weight of material. However, the self-hauler must maintain a record of the entity that received the organic waste.

For more information on self-hauling requirements visit CalRecycle.  You can also download this CalRecycle_Recordkeeping_tool_Self-Haulers to help you track your self-hauling.

Residential self-haulers do not need to maintain these records.

History of Clover Flat Resource Recovery Park

Clover Flat Resource Recovery Park LogoClover Flat initially began as a Class III landfill accepting municipal solid waste in upper Napa County and is now also a Resource Recovery Park and renewable energy provider. Rather than flaring the methane from this small Class 3 landfill, we collect and capture methane gas which is converted to electricity. Through a partnership with Pacific Gas & Electric Company, we are able to provide the city of Calistoga enough energy to power the equivalent of 800 residential homes.

The County of Napa sited and permitted Clover Flat Landfill in the late 1950s and it opened for business by 1963. The Landfill was purchased by Bob and Marvin Pestoni in 1966 and this leadership team created sustainability practices which have become the standards for industry, state of California and other jurisdictions. Today, Clover Flat employs 26 full time staff who live in and are raising their families in Napa County.

As California assumed a leadership role in the global effort on climate change, the state has begun enacting laws requiring more recycling and diversion of materials. The Clover Flat leadership team has enabled the Recovery Park to recycle 50% of what it disposes. In addition, Clover Flat has been and is currently operating at NET ZERO emissions meaning our Recovery Park is not producing more carbon emissions than what its saving. We are doing our part in the global effort on climate change and will continue our commitment to our community.

With the passing of SB 1383, a short-lived climate pollutant reduction mandate, more organics diversion programs are being planned and executed. These programs include:

  • Next Phase of Clean Energy Production – We are planning to develop operations to create more renewable energy for our community. Clover Flat will continue to expand on its clean energy production with the addition of a wood bio-gasification plant. This plant will create an additional one mega- watt of power for the local community while solving the community’s challenge of creating ongoing defensible space. This facility will also assist the local farming community with an alternative to open burning. The slow high heat baking of wood biomass will create the bi-product of bio-char and can be used for a number of applications, notably sequestering carbon.
  • Cal Green Building Code – in our effort on building sustainable partnerships, we are working with contractors to comply with California’s Green Building Code. We have established a Construction & Demolition process prior to any construction materials being disposed in the landfill. Concrete, wood, plastics, metals and fibers are removed and recycled. Currently the facility is compliant with the 65% diversion mandate of the Cal Green Building Code requirement.
  • Organics Processing – Green, wood and commercial food scraps will be diverted and composted. A new composting facility has been permitted and is under construction. This facility will add to our current composting operations that will keep our soils healthy, help conserve water, and sequester more carbon emissions. Currently, Clover Flat is assisting homes and businesses in the fire-stricken zones process brush and tree clearing.
  • Recycling and Collection of House Hold Materials – We will continue to offer the Upper Valley community a location for drop off recycling, universal waste, e-waste and purchase of CRV materials. 
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