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Sustainability Hero


Sus­tain­abil­i­ty Initiatives

We believe that sus­tain­abil­i­ty is the right thing to do, for everyone’s future

Since our found­ing and expand­ed ini­tia­tives start­ing in 2010, O’Neill has been an indus­try leader in envi­ron­men­tal stew­ard­ship and antic­i­pat­ing cli­mate chal­lenges posed to the wine indus­try and beyond.

Solu­tions to clean ener­gy, water treat­ment, and the longevi­ty of our soils have sig­nif­i­cant­ly reduced the impact we have on the envi­ron­ment and con­tributed to our True Zero Gold Cer­ti­fi­ca­tion – divert­ing 99.49% of pro­duc­tion waste from landfills.

Healthy soils lead to deli­cious wines – O'Neill Vint­ners is a proud Cer­ti­fied Cal­i­for­nia Sus­tain­able Vine­yard & Winery.

Bio Filtro Parlier

BioFil­tro Waste­water Solutions

We worked with BioFil­tro to con­struct one of the largest worm-pow­ered win­ery waste­water sys­tem in the world, capa­ble of fil­ter­ing more than one mil­lion gal­lons of pro­duc­tion waste­water per day. A key com­po­nent of our ongo­ing com­mit­ment to sus­tain­able prac­tices, BioFiltro’s patent­ed Bio­dy­nam­ic Aer­o­bic (BIDA®) Sys­tem enables us to har­ness the diges­tive pow­er of Cal­i­for­nia red wrig­glers to recy­cle up to 80 mil­lion gal­lons of water a year. These worms will con­vert the nutri­ents from the waste­water into worm cast­ings, a soil amend­ment sought after by grow­ers for its micro­bial activ­i­ty, nutri­ent lev­els, and abil­i­ty to improve soil health.

Learn more about BioFil­tro here.


Solar Farm

Start­ed in 2013, our 5,000-panel solar farm pro­duces rough­ly 1.102 mil kWh annu­al­ly and pow­ers 80% of our bot­tling and ware­house operations.

Annu­al emis­sions sav­ings from our solar pro­gram are equal to the following:

  • 880,000 lbs of CO2 emissions
  • 39,000 gal­lons of gas

Regen­er­a­tive Field Study

In 2020, O’Neill ini­ti­at­ed a liv­ing case study for the wider wine com­mu­ni­ty to learn about regen­er­a­tive viti­cul­ture through bio­dy­nam­ic farm­ing tech­niques, com­par­ing the results with our sus­­tain­ably-farmed vine­yards at scale. The tri­al will be led by world-renowned bio­dy­nam­ic con­sul­tant Philippe Arme­nier and Robert Hall Win­ery Man­ag­ing Direc­tor, Caine Thomp­son — Learn More

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Sus­tain­able Grow­er Cer­ti­fi­ca­tion Program

In 2018 we intro­duced a grow­er cer­ti­fi­ca­tion pro­gram that sup­ports grow­ers in receiv­ing Cer­ti­fied Cal­i­for­nia Sus­tain­able Vine­yard recog­ni­tion from CCSW — to date, 90% of our Par­li­er grow­ers and 98% of our Robert Hall grow­er part­ners are cer­ti­fied. Our goal: 100% of our grow­ers to be cer­ti­fied sus­tain­able by 2024.

Addi­tion­al­ly, we host annu­al edu­ca­tion­al lun­cheons with grow­ers in Lodi, Cen­tral Coast, and Cen­tral Val­ley with updates on indus­try trends and con­sumer insights.

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True Zero Gold Certification

In 2022, O’Neill became a True Zero Gold Cer­ti­fied Win­ery for divert­ing 99.32% of sol­id waste from land­fills, incin­er­a­tion, and the envi­ron­ment. Diver­sion prac­tices include:

  • Our retired oak bar­rels are crushed and used as a fil­tra­tion lay­er in our waste­water system
  • Left­over grape pomace and stems are used in ani­mal feed.
  • Office recy­cling is tak­en to local recy­cling facilities.

In addi­tion, we’ve also made advance­ments in the fol­low­ing areas:

  • Through our part­ner­ship with Free Flow Wines, we've saved over 1.4 mil­lion bot­tles from land­fill by fill­ing over 57,000 kegs.
  • Jack­et­ed and insu­lat­ed stain­less steel tanks
  • Decreased nat­ur­al gas usage in the dis­til­la­tion process
  • Recap­tured ethanol emis­sions from stor­age warehouse
Bio Filtro Parlier
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