January 2016

ASF Applies for Long-term Use of Hahamogna Cooperative Nursery

The abandoned nursery site in Hahamongna on the former US Forest Service Ranger Station has really blossomed since ASF moved in last February to grow native plants for the Arroyo Seco Canyon Project. On January 12, 2016 ASF sent a letter of application to Pasadena's new Public Works Director, Ara Maloyan, to begin the process of securing a long-term lease of the 1/3rd acre site. In the last year ASF and our volunteers have decisively proven that we can operate a model native plant nursery with tremendous benefits for Pasadena and the community. We hope you will support our application for the long-term use of the site.

Nursery Application

While the East Coast freezes, we're still waiting for the El Nino storms. Experts predict they are still coming, although delayed.

It's Time to Renew Your Arroyo Seco Membership

It's been an extraordinary year in the Arroyo with the Hahamongna Nursery, the No Big Dig lawsuit, Arroyo River Parks and a host of other accomplishments, and next year promises to be even more dynamic. We are so grateful for your support, and now we need for 2016 to expand our efforts to protect and restore the Arroyo:

Renew Your Membership

The Tree Crisis

The trees in our region have been under extraordinary stress in recent years. Five long years of drought have weakened many of trees and made them more susceptible to persistent pests like the Polyfaguous Shot Hole Bore which is spreading rapidly and threatening new trees. But is the solution to simply cut down threatened trees and hope for the best? Pasadena, chopped down seven ancient oaks in Hahamogna Watershed Park on Christmas Eve and has plans to remove hundreds of trees especially in the natural lands of the Arroyo Seco. Pasadena Public Works officials call it necessary maintenance, but their actions are destroying the character of the rare oak grove in Hahamongna and of the Arroyo Seco itself.

We call on the City of Pasadena to:

  1. Conduct a public forum on habitat and tree preservation,
  2. Begin a program of removing invasive species that are fostering the pests and endangering the trees, and
  3. Develop a plan to restore invaluable habitat in the Arroyo after five long years of drought.


Witness the devastation wrought by the Christmas Eve Oak Grove Slaughter:

Christmas Eve 2015 Tree Slaughter | Star-News Article

Making A Difference

Max Alvarez (left) is making a difference. As part of his 8th grade Community Impact Project at Flintridge Preparatory Academy in La Cañada, Max led a special group of students and other volunteers to remove invasive plants from the Hahamongna Watershed Park on December 20, 2015, removing more than 250 pounds of invasive plants, trash, and debris. Max plans to visit the project site again to assess the effectiveness of his team's efforts.


This work is of great importance, as it has implications for the plight of native trees affected by Polyphagous Shot Hole Borer (PSHB). The PSHB infests the bark of native trees like the California Sycamore and the Coast Live Oak and leaves a fungus that affects branches and in some cases leads to the death of the tree. One of the main targets of Max’s project was the Castor Bean plant, which serves as a host to PSHB. Removing this species decreases the propensity for PSHB infestation, protecting native trees from infection.


KABC Eyewitness News Features King Day at Nursery

2015 Arroyo Verde Awards


Acorns Are Sprouting

The Engelmann acorns we collected in the fall are already sprouting!

Arroyo Seco Calendar

Your guide to special events related to the Arroyo Seco, the Los Angeles River,
the San Gabriel Mountains, and key environmental issues in our region.

Wednesday, January 27, 12:00 pm - 1:30 pm
Stormwater Capture: Establishing a Steady Funding Stream

The Southern California Water Dialogue will meet regarding Stormwater Capture at the Metropolitan Water District of Southern California headquarters, 700 N. Alameda, Los Angeles, (213) 217-6710. Please RSVP to JoAnn Carrillo @ jcarrillo@mwdh2o.com.

Wednesday, January 27, 7:00 pm - 9:00 pm
Transforming Recreation along the San Gabriel River

Where Eaton Canyon Nature Center, 1750 N. Altadena Dr., Pasadena (map)

What: “Transforming Recreation along the San Gabriel River”

When: Reception 7 p.m.; Program 7:30 p.m. Wednesday, January 27, 2016


Saturday, January 30, 9:00 am - 10:30 am
Beyond the Barrel: Practical Rainwater Harvesting

Where: Beyond the Barrel: Practical Rainwater Harvesting with Andreas Hessing

Description" Beyond the Barrel: Practical Rainwater Harvesting with Andreas Hessing

Theodore Payne Foundation, Sun Valley, CA $25/$35

Sunday, January 30, 10:00 am - Noon
Water Harvesting

Where: Los Angeles County Arboretum & Botanic Garden, 301 N Baldwin Ave.

Description: Water Harvesting Lecture at the Crescent Farm

Free for members / Free for non-members (with arboretum admission)

Instructor: Crescent Farm Staff

Monday, February 22, 7:00 pm - 9:00 pm
EIR: Pasadena Non-Potable Water Project

Where: Pasadena City Hall, Council Chamber, 100 North Garfield Avenue, Room S249

Description: This meeting will consider the certification of the Final Environmental Impact Report (EIR) for the Pasadena Non-Potable Water Project (known in the past as Recycled Water Project). The EIR is available online at: www.pwpweb.com/recycledwater and http://cityofpasadena.net/Planning/Environmental_Notices/.

Contact: Roumiana Voutchkova (626) 744-4486 rvoutchkova@cityofpasadena.net

News of the Arroyo

An archive of news stories about and related to life in the Arroyo Seco.

Click on the title link to read the entire story.

The Rest of the Story January 21, 2016 - Stewards of Public Land clear up some of the misconceptions about their concerns regarding archery in the Lower Arroyo.
Rose Bowl sticking with Arroyo music festival, not the NFL: Larry Wilson January 20, 2016 - With the Rams coming back to LA and the Chargers and Raiders both also interested, concerns about the possible role of the Rose Bowl are inevitable. Larry Wilson has the scoop. -
Whose river is it? And whose history? December 23, 2015 - Jenny Price elucidates the concerns many River advocates have about the involvement of Frank Gehry in the LA River restoration program.
Know Your Neighbors: Arroyo Chub December 22, 2015 - LA Magazine features the Arroyo Chub and mentions the Arroyo Seco Foundation's 2008 reintroduction of the Chub into the Arroyo. -
Northern California salmon runs stronger than expected on many rivers despite drought December 22, 2015 - On the Mokelumne River -- a central Sierra drinking water source to 1.4 million East Bay residents -- more than 12,000 adult chinook have returned for the fall run so far this year, exceeding a 17-year average of 8,000 fish.
L.A. Remembers It Has a River December 14, 2015 - The concrete ditch running through the city is a sad joke even in Los Angeles. A revitalization effort decades in the making is getting under way, but will it repeat the mistakes of the past. - - - - -
South Pasadena Sewer Issues December 10, 2015 - Twelve South Pasaena sewer spills have reached the Arroyo Seco and the LA River. An overhaul of the SoPas sewer system is now underway.
Will El Niño be able to flush fish invaders out of the L.A. River? December 1, 2015 - Researchers are studying what type of fish currently survive in the Los Angeles in an effort to determine whether native fish will be be better at surviving the harsh conditions there. - -

Arroyo Seco Foundation
Los Angeles River Center, 570 W. Avenue 26 #450, Los Angeles, CA 90065
PO Box 91622, Pasadena, CA 91109
(323) 405-7326 | info@arroyoseco.org

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