Category Archives: NEWS

Free Green Materials Drop-off Dates 2019

5575 Nicasio Valley Rd., Nicasio, CA 94946.
415 662 9849

The 2019 free yard debris drop off dates are :

June 8th and 9th
July 6th and 7th

9:00 am to 3:30 pm

This is your opportunity for free and safe disposal of yard debris such as branches, grass and brush. No building materials, general debris or garbage and no palm trees please.  Marin residents only!  Proof of residency may be required.

The program is set up to remove vegetation/debris to create defensible space and increase the chances of their homes surviving a wildfire. Learn more.

Location:  5575 Nicasio Valley Rd., Nicasio.  Across from the  Nicasio Corporation Yard. See map

Sponsored by:
Marin County Board of Supervisors,
Marin County Fire Department & West Marin Compost

For more information call:  415-473-6717

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West Marin Compost Drop-Off site

West Marin Compost is now open to help you prepare your yard and garden for spring!!

5575 Nicasio Valley Road, Nicasio (across from the County corporation yard). See map.
Open Monday through Saturday from 7:00 am – 3:30 pm.
Tipping fee is $20.00 per cubic yard.

We now also have a line of soil amendments that suit your every need. See the Products page.

We are Accepting Clean Green Material only.
Not accepted – noxious weeds or animal waste, food scraps, compostable plastics and other non-green materials.
For manure hauling services cal 415 662 9849

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Seasonal Specials

Seasonal Sale!
From time to time we may offer seasonal products on sale. Check here for what may be available.
Fall Special: There are currently no sales
Note however that we have started a 20+ cubic yard discount on Tree Mulch, Ultra-Light Mulch and Path Mulch.  

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Grant will reduce methane emissions by 80%, while making a better compost

West Marin Compost is very pleased to announce that a proposal they wrote on behalf of the Lafranchi Dairy was awarded a $744,000.00 grant to convert the dairy from a wet flush manure collection system to a dry scrape system.  Under the current system, water flushes manure out of the barns.  The slurry enters a manure separator and the liquid runs into a manure pond. This liquid is like a manure tea, rich in nutrients and carbon.  As a result, as the manure tea sits in the pond, methane is produced.  The dry scrape system will eliminate the flushing.  The nutrients will remain in the manure and very little manure water will enter the pond.  What does enter the pond can be used to bring the compost to optimum moisture levels.  The now more nutrient rich manure will enhance the compost produced.  This is a win-win-win scenario for the dairy, the compost operation and the environment.


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Bioremediation for Fire Affected Sonoma County

West Marin Compost is constructing free wattles (for fire relief), which have been inoculated with mycelium to provide bioremediation for the fire affected lands in Sonoma County.  The wattles, long 8″ diameter socks that are filled with straw, compost and mulch, will be placed in areas where the risk of run-off of water contaminated with oil, gas, pesticides, leaded paints, chemicals, etc. is a risk to the environment, particularly our water resources.

The Lafranchi Family have donated all of the straw bales from the Nicasio Pumpkin Patch.  Chip StrawGourmet Mushroom, Inc. is providing the fungi.  Clean River Alliance transports the fungi substrate to our facility. Many volunteers are chipping in providing labor to put the whole package together with West Marin Compost providing compost, mulch, wattle socks, equipment, labor, coordination and transportation.

Volunteering is on hold.  Stay tuned


How does it work?  The wattles will provide erosion control by slowing down the water, allowing sediment to settle out and reducing the energy of the water.  Compost in the wattles has the ability to immobilize heavy metals, thereby removing them from the environment.  The microbes in the wattles see hydrocarbons (gas, oil, many pesticides) as a food source and will break them down.  The added fungi are vey good in filtering out heavy metals, chemicals and hydrocarbons.  We are building bioreactors, where nature can do its work to clean up.

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Donate your old Pitchforks!

Donate an old pitchfork and receive a 10% discount on your tipping fee! Old pitchforks will be used in the creation of the new welded gate at the drop-off site!! Call Nancy at 415 662 9849.


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west marin compost project on KWMR

“Finally, a Place in West Marin to Drop Off Green Waste as a new composting operation at Lafranchi Dairy in Nicasio opens soon.”

“Kevin Lunny, whose company is in charge of the operation, tells George Clyde about the new facility, which blends dairy manure from the Lafranchi dairy, horse manure from local stables and green waste to create organic compost fertilizer. Rick Lafranchi will use the compost for bedding for his cows to save money and carbon emissions.”

From KWMR radio’s the “West Marin Report”

Follow this link to listen to the show



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The Benefits of Compost and Soil Health

Soils ignored
Soil have been taken for granted, ignored and abused throughout history of man-kind. Through much of our history we did not know better. Plants grew and we harvested the bountiful food the earth provided. Working the soil gave a higher production and when the returns diminished, mankind would move on to the next field. Little did early mankind know that agriculture was depleting the soil and that a sustainable soil management could prevent this from happening.

We can do better
We can no longer claim ignorance. We understand soils and the role of organic matter to provide good soil structure, water drainage, water holding capacity, diverse and abundant populations of microorganisms and a regenerative nutrient supply.  We now also know that organic matter or carbon in the soil can help reverse global warming by taking carbon dioxide from the air and locking it long-term in the soil.  When we build up organic matter in the soil we are creating healthy soils.  Compost and mulches when used wisely can be effective tools in creating healthy soils.

When we work the soil by digging, plowing, discing we break organic matter, expose it to air and accelerate its decomposition.  Unless we replenish organic matter and adopt soil management techniques that build organic matter we will be depleting the soil.  Soil depletion is no longer a luxury we have.  We have to focus building healthy soils by minimizing soil disturbance and adopt low or no-till soil management.

California is leading
California has made great strides in diverting organic matter from landfills.  Yard debris is now mostly being composted or turned into mulches.  New efforts are underway to also divert food scraps from the landfill.  Manures are also being looked at to manage in a more sustainable regenerative manner to protect water and reduce emissions of methane and nitrous oxides.  As a result we are producing more and more compost and mulches.  In 2015, for the first time in California history, Governor Brown introduced a line item in the budget for healthy soils. These are exciting times we live in.

West Marin Compost has long worked with the Marin Carbon Project to further carbon farming.  Recently, West marin Compost supplied the compost for 17 new carbon farming demonstration plots throughout California to further our understanding about carbon farming.


Creating healthy soils here and now
We invite you to start building healthy soils in your backyard, on your farm in your landscape.  Creating healthy soils is a win-win proposition.  We are taking materials that were formerly seen as polluting wastes and turn them into soil building resources. As we build healthy soils we conserve water, improve soil structure, grow large diverse populations of bacteria and fungi, and provide a regenerative nutrient cycling program. Together we can make a difference.


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