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Rio Hondo Watershed

Richard Watson
RWA Planning
RH_WC@pw.lacounty.gov

Julie Millett
RWA Planning
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. 

Taking care of our water and natural world is vital, and is particularly complex within the urban environment in which we live. Rich (my dad and fellow watershed coordinator) is very experienced with technical stormwater issues, and I’m a people person who has learned a lot about water and the environment through our work. We make a great team. We appreciate getting to engage with the diverse communities of this Watershed Area, learn from them about their experiences with water, and share information with them. People get excited when they learn what impact we can make together.

– Your Watershed Coordinators Richard and Julie

Get in touch with Richard and Julie 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 have a lot of good fortune here in our built world, but it would be really, really great if we could do the same for our natural world too.”

    Julie Millett
  • 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.

Dawn Petschauer

Pasadena

Municipal
Chair

Tom Love

Upper San Gabriel Valley Municipal Water District

Agency
Vice Chair

Julian Juarez

LA County Flood Control District

Community

Kelly Gardner

Main San Gabriel Basin Watermaster

Agency

Dave Pierce

LA County Sanitation Districts

Agency

Hayden Melbourn

City of Pasadena Public Works

Agency

Bryan Matsumoto

Nature for All

Community

Jill Fosselman

Resident

Community

Mark Hall

Greater LA County Vector Control District

Community

Community

Daniel Rossman

The Wilderness Society

Community

David Dolphin

Alhambra

Municipal

Briget Arndell

Arcadia

Municipal

Fernando Villaluna

Los Angeles County

Municipal

Alex Tachiki

Monrovia

Municipal

Municipal

Eddie Chan

Irwindale

Municipal

Richard Watson

RWA Planning

Watershed Coordinator
Non-voting Member

Upcoming Events

Events and meetings related to the Rio Hondo watershed.

Find archived events prior to March 2024

Resources

Documents, facts sheets, links, and more related to the Rio Hondo watershed.

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