Norcal Ag - We Grow It Greener

Soil Amendments, Topsoils, Bioretention soils and more - delivered throughout Northern & Central California

Best Practices

Communities We Serve

Norcal Ag Service provides bulk organic soils, soil amendments and farm supplies like compost, chicken and cow manure, gypsum, limestone, organic fertilizers, biotreatment soil, road dust control, and other soil stabilization services and products to all of central and northern California communities, including Napa, Sonoma, Healdsburg, St. Helena, Stockton, Modesto, Merced, Sacramento, Woodland, Yuba City, Lodi, Livermore, and more.

Learn More About California Soil

Norcal Ag Service takes our soil science and knowledge seriously. We've put together a resource that will teach you everything you need to know about northern California soil. 

Helping our ag Community

We Support!.

Check out our Facebook page for the latest ag news and Norcal Ag Service updates!

Organic Soils & Composts For Early Fall

Take care of the soil that takes care of you....

Norcal 'Filter Green' Certified BioTreatment Soil

Top rated Premium Certified bioretention soil  (biosoil) constructed with specialized glacial sub angular sand providing maximum stability and longevity with optimum filtration rate.

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Thank you to our customers!

Norcal Ag Service is a northern California small business that offers organic farming supplies and organic soil amendments an road dust control and soil stabilization services to our Ag community, not a multi-billion dollar chemical company so we would like to thank some of our customers because our jobs TRULY do depend on Ag.

Clos du Val winery - Atlas Vineyard Management - Pacific Gas & Electric - Ducks Unlimited - Paul Hobbs Winery - Stagecoach Vineyards - Silver Oak Winery - Nutty Tree Farm - Kruppa Farms - Caymus Vineyards - ZD Wines - Chalk Hill Winery - Georgia Pacific - Sequoia Grove Winery - Sunseri Vineyards - Big Ranch Farms - Annapolis Winery - Maggiora & Ghilotti - Napa County - Putah Creek Hopps - Rare Earth Landscape Supply - Reynolds Family winery - Ohara Farm Company - Hydeout Farms - Hansen Brothers - McMannis Vineyards - Pine ridge Vineyards - Van Duyn Farms - Ballatore Farms - Antinori Vineyards - Kendall Jackson Family Vineyards - Renteria Vineyard Management - Golden Bear Ranches - Hill Wine Company - Nunez Vineyard Management - Rawah Vineyards - Peterson Ranch - Pippitt Ranch​ - Gordon Valley Ranch