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Arroyo Seco Foundation

News of the Arroyo


Devil's Gate-Eaton Canyon Pipeline Plan Dries Up


Los Angeles County Public Works confirms that plans have been "re-prioritized"




August 10, 2017 - Well we know that the Eaton Canyon pipeline from Hahamongna Watershed Park won't travel across New York Drive. But does that mean the end of the controversial facility that has been linked to County Flood's Big Dig project in Hahamongna? Not clear. County's PR guy says the project is "on hold," but the pipeline has been on hold for thirty years. Be wary.


Eddie Rivera, Community Editor


Pasadena Now


There will be no pipeline traveling down New York Drive in Pasadena and Altadena moving stormwater from Devil’s Gate Dam to nearby water conservation facilities, Pasadena Now has learned.

Fifth District Supervisor Kathyrn Barger mentioned dropping the project while answering an unrelated question as she addressed the Women’s City Club of Pasadena at a Wednesday afternoon luncheon.

‘There will be no pipeline traveling down New York Drive,” she told the group.

Kerjon Lee, Public Affairs Manager for LA County Public Works, confirmed Wednesday afternoon that the project is now “on hold” as the Department “re-prioritizes” other projects, including, coincidentally, a rehabilitation of New York Drive.

Details about the rehabilitation were as yet unavailable.

The pipeline project was conceptualized to maximize water conservation by capturing and conveying stormwater before the flows are lost to the ocean.

According to a County report, the project aimed to conserve stormwater by holding a reservoir pool behind Devil’s Gate Dam, and then installing a pump station to divert and convey stormwater to Eaton Wash Dam and/or the Eaton Wash Spreading Grounds for post-storm groundwater recharge with a future potential connection to the Arroyo Seco Spreading Grounds. The pump would have been installed at the Devil’s Gate Dam pumping out water through more than 26,000 feet of underground pipeline to Eaton Wash Dam spreading ground facilities. Construction on the project was expected to have taken 18 months.

While a number of residents were concerned that the plan to move water from Arroyo Seco to Eaton Canyon through Altadena would have adversely and unfairly affected the area’s water supply, Mark Pestrella, newly appointed director of LA County Public Works, said the spreading grounds behind the Arroyo Seco “are less efficient at putting water into the ground than the Eaton Canyon water spreading grounds.” The two grounds are part of three which serve the Arroyo Seco watershed.

“We want to move the water from Arroyo Seco to Eaton Canyon, so that we can be more efficient,” he told Pasadena Now at a public information meeting three weeks ago.

“The water that falls on the mountains above the watershed in this area,” Pestrella continued, “ is owned by the residents of this area. But when that water gets to whatever water district serves a particular area, that water is owned by that water district, and they sell that water, not the County. The beauty of the flood control district systems is that the flood control district, as an entity, doesn’t own any water rights. We have a mandate to collect more water and get it back to you through the systems that we have built. Local residents pay for that system.”

Asked about complaints that the project may unfairly move water out of Altadena and into Pasadena, Pestrella said, “It’s all the same bathtub.”




Arroyo Seco Foundation, 570 W. Avenue 26 #450, Los Angeles, CA 90065-1011
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