They’re Here! After thoughtful updates and refinements, the completed Initial Watershed Plans and online Planning Tool are now available at the Watershed Planning Initiative webpage.

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Rio Hondo Watershed

Jenna Cobb
Active San Gabriel Valley
RH_WC@pw.lacounty.gov

The Rio Hondo Watershed boasts some of the most geologically, geographically, and culturally diverse communities in LA County.

Starting at San Gabriel Mountains, this watershed drains to the Rio Hondo, then to the LA River, and finally into the Pacific Ocean. The Rio Hondo watershed also includes the Arcadia Wash, Rubio Wash, Eaton Wash, and Santa Anita Wash. Ten of the cities within the watershed have a primary language other than English, including Spanish, Mandarin, and Cantonese. 

As a resident of the Rio Hondo Watershed who has often pointed to the Safe, Clean Water Program as an exemplar of our local community investing in climate and water resilience, I am very excited to serve as the Rio Hondo Watershed Coordinator. Throughout my career, I have collaborated with municipalities, school districts, and tribal representatives to engage community members of all ages in watershed education and the co-design of multi-benefit projects, and I am excited to continue that work as Watershed Coordinator. I take joy in being a connector, and I aim to connect community members, public agencies, and community-based organizations to the Safe, Clean Water Program as a resource for transforming our neighborhoods to be more resilient. In the Rio Hondo Watershed, I love spending time at Peck Road Water Conservation Park and riding my bike along the Rio Hondo River Trail.

– Your Watershed Coordinator Jenna

Get in touch with Jenna to learn about how we can create exciting water capture projects in your community. 

From the Community

  • Vincent Lugo Park (LA County)
  • Stormwater Capture Project in East LA (LA County Public Works)
  • Like other watersheds in the LA County Basin, this land is indigenous to the Gabrielino and Tongva peoples and is home to many historic villages.  
  • “We all live within a watershed and are all connected in this way in which the water moves through the land. Person to person, person to nature.”

    Jenna Cobb
  • Stormwater Capture Project in East LA (LA County Public Works)
  • Norwood Elementary green space (Norwood Greening Project)
  • Featured Project

    Merced Avenue Stormwater Capture Project, El Monte

    This project will increase natural vegetation and add a bioswale to increase water storage and divert stormwater runoff in El Monte. 

    • Reduce flooding in the community
    • Add a bike path and natural vegetation next to the bioswale
    • Increased stormwater capture

Watershed Area Steering Committee Members

Watershed committee members work with the watershed coordinators to develop investment plans for their watershed.

Julian Juarez

LA County Flood Control District

Agency

Tom Love

Upper San Gabriel Valley Municipal Water District

Agency
Vice Chair

Lauren Augino

Main San Gabriel Basin Watermaster

Agency

Francisco Guerrero

LA County Sanitation Districts

Agency

Jeff Khun

City of Pasadena Public Works

Agency

Vacant

Community

Jill Fosselman

Resident

Community

Marisol Cortez

Community

Bryan Matsumoto

Nature for All

Community

Allen Ma

Resident

Community

Latoya Waters

City of Alhambra

Municipal

Briget Arndell

City of Arcadia

Municipal

Stephanie Sandoval

City of Duarte

Municipal

Eddie Chan

City of Irwindale

Municipal

Alex Tachiki

City of Monrovia

Municipal

Dawn Petschauer

City of Pasadena

Municipal
Chair

Kara Plourde

Los Angeles County

Municipal

Jenna Cobb

Active SGV

Watershed Coordinator
Non-voting Member

Upcoming Events

Events and meetings related to the Rio Hondo watershed.

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