Tag Archives: Wastewater

9 cool facts about Hyperion

HyperionEarlier today I had the chance to tour the Hyperion treatment plant with a group of staff and volunteers from Heal the Bay. Sewage may not be sexy, but its fascinating. Many thanks to our friends at the Bureau of Sanitation for a great tour.

1. Hyperion was one of the 12 Greek Titans and the father of the god, Helius. Hyperion is also the name of a sewage treatment plant in LA. And the name of the world’s tallest tree — a 379′ tall coast redwood in Redwood National Park.

2. The Hyperion I will be talking about is the largest sewage plant, by volume, west of the Mississippi. It treats 300 million gallons a day (MGD) on a regular basis and can handle 900 MGD flat out. By comparison, you’d only need 100 MGD to fill the Rose Bowl. Or 90,000 fans. Take your pick.

3. You may  have heard of effluent — it is the treated waste water discharged into a bay or ocean. But did you know they call the raw sewage that flows in the front door of the plant, “infuent”? I didn’t.

4. The city of LA purchased the land that Hyperion stands on in 1892 and built the first modern plant in 1949.  Up until that time, raw sewage was discharged to the Bay. But I use the word “modern” loosely. From 1949 until 1998 it blended treated and untreated effluent and then pumped it into the bay. The result? Sick surfers, dead fish, and dolphins with skin lesions. Oh, and a fight with Heal the Bay.

5. Heal the Bay was founded in 1985 to get Hyperion to clean up its act. By 1987 they had agreed to. But it took 12 years and $1.6 BN to get to a place where only treated effluent was pumped into the bay. Now surfers are healthier, dolphins are happier, and the fish die of natural causes. Unless its raining — but that is another story and a much more challenging problem we work on day in day out.

6. Despite the fact the new plant has allowed the bay to recover, the treated effluent itself is not safe for humans. Seagulls may swim in the treated water ponds, but if you or I did the same we would get sick. So the last piece of the treatment puzzle is the dilution provided by the Santa Monica Bay. It does it tirelessly and doesn’t get paid.

7. It can take several days for influent to get from your toilet to Hyperion. But once there, the liquid is processed within a day. The solids take longer to be digested by beneficial bacteria and converted to compost that is used in Kern County farms and Griffith Park.

8. 6700 miles of sewage line feed into Hyperion. That’s like LA to NY and back,

9. 80% of the power needs for Hyperion are met from methane gas generated on-site from all that poop.

Hyperion 003

Hyperion – they don’t come bigger than this!

Hyperion. To some the legendary father of the sun, the moon and the dawn. To some, the tallest tree in the world.  To the millions who live in Los Angeles, it’s the sewage treatment plant at the end of the pipe. And to me, it will forever be a place that brings two parts of my life together.

Mayor Garcetti opens a new education center at Hyperion
Mayor Garcetti opens a new education center at Hyperion

On September 16th 2006 I schlepped Steve Sillet’s crossbow through the woods as he set out to document this record-breaking redwood for the first time. Until that point no-one really knew how tall the tree was. Steve’s work documented it as a record-breaker at 379.1 feet tall (that’s 115.55 meters). What was remarkable about the tree is that it narrowly escaped being cut down before being protected in Redwood National Park in 1978. I clearly remember being sat in that remote grove as Steve and his team went about their painstaking work. It was a magical place. So quiet and remote with beautiful trees all around.

Roll the clock forward a few years and on September 16th 2013, I found myself sat out by the beach under a hot sun with Hyperion — the municipal sewage plant for LA at my back. It was my first day on the job at Heal the Bay and I had come to where it all started. I was part of the crowd of city officials, environmentalists, and citizens come to watch the new Mayor of LA, Eric Garcetti, dedicate a brand new education center at what I learned is the second largest septic plant in the United States.

Back in 1985 a group of concerned citizens were tired off the endless pollution pouring into Santa Monica bay, killing fish and sickening people. Organized by Dorothy Green, they founded Heal the Bay, which for 28 years has worked tirelessly for clean beaches and water in Southern California.  Their first fight was to stop untreated wastewater from Hyperion being dumped into the bay. They won that battle and many more since then.

Today, the greatest threats to our coastal waters and watersheds, and to all of us – both human and animal – that rely on the ocean for pleasure, income or sustenance, come from urban and stormwater runoff, plastic pollution, and the ever-increasing stresses to our marine environment from over-fishing and climate change.  Together, these threaten to impair the bay and ocean just as untreated wastewater from Hyperion did all those years ago. Unfortunately the solutions are no longer as simple as as a new septic plant. They require us to be thinking and working throughout the watershed and at policies at both the local and state-wide level.

When I need inspiration,  I will return to this day and to Hyperion that brought so many threads together. From the towering redwood to the sewage treatment plant. At their core both are a story of how people stood up to protect places they care about and in the process changed the course of history.

Muir Woods