A New Winery Wastewater Wetlands Area
September 09, 2019
Back in 2005, the state of California passed a law requiring wineries to treat their wastewater rather than releasing it to a normal septic system. This made a lot of sense to us because the lees and other winery by-products can be acidic enough that they impact the normal microbial function of leach fields. But, what sort of water treatment system was an important question. Most wineries chose a contained treatment unit, basically a small version of the treatment plants that cities or industrial operations install. We chose to go a different way. One available option was to build a wetland area where the roots of water plants would filter the winery wastewater as it passed through a series of gravel-filled lined ponds, until it was clean enough to be applied as irrigation water or to keep dust down on the roads. This solution creates wetland habitat for water-loving birds, amphibians, and insects. We were the first winery in the Central Coast to choose this (at the time novel) solution, and completed the construction of our first iteration of this project in 2006. We have enjoyed the benefits (including getting visits from this great blue heron) ever since.
But we're processing more grapes than we were in 2006, between the winery expansion we completed in 2011 and the growth of our Patelin de Tablas program, and in busy periods in recent years we've been pushing more water through those wetlands than they could really process. So, one of our big projects for this year was to expand the wetland area to the appropriate scale for our production. If you've driven into (or by) the winery in the last six weeks, you've likely seen the work going on:
As of last week, the ponds are filled and the plants are planted. You can see in the foreground how the wastewater is distributed across the surface of the pond.
I think the whole thing looks glorious. This next photo shows off the flowers a little better. It also shows a view of the holding pond in the background. We'll make good use of this water, likely to keep the animal enclosure that's right next to this green and growing all summer long:
All wineries (and all businesses) are faced with problems to solve, whether they be inherent in the business or mandated by regulation. Finding solutions like this, that fit into our larger goals and ethos, is one of the real pleasures of running this particular business. The next time you come out to see us, look left as you turn into our gate and you'll see it. Maybe our heron will even make an appearance for you.