Monterey Greywater

Other members include:

Richard Boynton All things Green Landscaping

Jeff Middlebrook Plumbing

Tim Bailey Native Sun Landscaping and Permaculture Consultant

Please contact the group with your comments, questions, or support at or 831 373 6752.

Our Goal Include

For comments, questions, or support contact  us at or 831 373 6752

Greywater Quick Facts

  1. Graywater is all the waste water a home produces, except water from the toilets.
  2. California law does not allow graywater use from kitchen sinks and dishwashers.
  3. Dish, shower, sink, and laundry water comprise 50-80% of residential 'waste' water .
  4. This wastewater contains the soap and hair and things that go down the sink drain, or come out of the laundry. With use of the proper soaps, this wastewater creates, a kind of liquid culture that becomes plant food almost immediately upon mixing with a properly prepared landscape .
  5. Graywater is safe, there are eight million greywater systems in the US with 22 million users. In 60 years,  there has not been one documented case of greywater transmitted illness."
  6. Graywater is not useful to irrigate lawns  because in must be released underground, but its so safe its fine to use in vegetable gardens,  and fruit trees are perfect recipients for graywater.
  7. Graywater should not be stored, as it turns to “black” toilet type water within 24 hours.
  8. < A simple pipe from the collection plumbing in the house, that runs downhill into a properly designed mulch basin, is almost foolproof. It's also very low maintenance, extremely sustainable, and could last many decades .
  9. The success of these simple systems, and the dire need to conserve water are what prompted the California legislature to pass an emergency measure making it legal to install certain systems without a permit .
  10. The need to conserve water is dire, according to California American Water if that State Water Resources Control Board imposes even modest cutbacks on the Monterey Peninsula, residents can probably forget about watering their gardens .
  11. Though very good for the landscape, an effective graywater system doesn't irrigate the way of fresh water system does. It's not under pressure, and it contains bits of matter that will clog the fine tuned type of irrigation were used to. Instead mulch basins are used to cleanse the water, and deliver it to specific landscape "areas" as opposed to specific small plants.
  12. Graywater systems are great for the environment, not only do they they reduce the amount of water taken out of the rivers, but also return water, by recharging the aquifers. The clean biologically treated water they produce, seeps back into the earth, recycling the clean water back to the rivers and aquifers .
  13. The most complicated part of building a graywater system is keeping it simple. .

Water Assesments

Rainwater Harvesting

Greywater Case Studies

Please feel free to contact us with your comments, or questions, through email or 831 373 6752

Our Wastewater

We have a “use it once and send it away” attitude about our water.

“ We mix all our waste together, then separate it later.”

Like most of our bad habits, this one was born from the days of unlimited resources and a willingness to waste our environment. We take fresh clean potable water. Touch it "once" in our sinks showers, and washers, then mix it with the most awful stuff we can find, bad things like urine, feces, and toxic chemicals. Then we pump this toxic mess all the way over to the sewage treatment plants.

There they treat it with bacteria and chemicals, then pump the liquid parts into the bay. 50% of this water isn't really dirty, and has no business being pumped anywhere, not when our landscapes could use it so well.