Michelson Water Recycling Plant: Where nothing is wasted

For more than half a century, the Michelson Water Recycling Plant has been IRWD’s primary source of drought-proof recycled water.

Opened:

1967

Expanded and upgraded:

2008 and 2014

Location:

Irvine

Average daily output:

25 million gallons of recycled water

Capacity:

28 million gallons a day

Process time:

16 hours (from when water enters plant until it leaves plant)

One of two sources of IRWD recycled, along with Los Alisos Water Recycling plant

Every gallon of recycled water saves a gallon of drinking water

Operating sustainably to keep water bills low

What if wastewater wasn’t wasted? What if water plants could store energy to reduce the need for power plants? What if a sewage treatment plant could be powered by the sewage it treats?

The answers can be found at Michelson Water Recycling Plant, which operates efficiently and sustainably to keep your water 
bill low.

At this plant, “what if” is what we do.

New life for water that goes down your drain

In the IRWD service area, most of the water that goes down the drain indoors — from showers, toilets, dish washing, laundry — ends up at the Michelson Water Recycling Plant. (The rest flows to our Los Alisos Water Recycling Plant)

Here, the water gets new life through a three-stage (“tertiary”) recycling process.

The high-quality recycled water is used primarily for watering public landscape — keeping our community green and beautiful.

The Michelson plant opened in 1967 and began delivering about 2 million gallons per day to farmers. Since, it has grown into a nationally recognized facility capable of producing 28 million gallons a day for a variety of non-drinking uses.

Storing energy
  • A network of lithium batteries captures inexpensive electricity in off-peak hours.
  • IRWD uses that electricity in peak hours, saving customers money.
  • This also reduces the need for more power plants in the community.
Wasting nothing
  • Organic solids left over from water recycling are piped to the adjacent Biosolids facility.
  • The solids are converted to products loaded with nutrients to help plants grow.
  • Methane gas from the solids provides energy to power the biosolids facility.

How the recycling process works