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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

More Contact Info


Green Street Stewards Make a Difference!

May 21, 2018

The Green Street Steward program encourages volunteers to help maintain Environmental Services' green street stormwater facilities in their neighborhoods. We’ve asked volunteer stewards to report back, and the very impressive results are in for 2017:

639 hours spent volunteering

2114 gallons of trash collected

2107 gallons of debris (leaves, sticks, weeds, etc.) collected 

The Green Street Steward team is grateful for the work of community members to help maintain green streets, and we know there’s even more work happening that we don’t hear about! This year, we're thanking stewards by awarding certificates for those who went above and beyond in a few categories (total hours, debris collected, trash collected, and most interesting find).

Our individual winners were:

Most hours logged: Lyle Remington (not pictured), 64.4 hours

Amy Chomowicz

Most debris collected: Amy Chomowicz with 236 gallons! Amy is a City of Portland employee who takes care of a green street on her own time.

Jacqueline Lidell

Most trash collected: Jacqueline Lidell, 42.5 gallons of trash

Sarah and Jeff Lyons

Most interesting find: Jeff and Sarah Lyons, a shopping cart

Our business winners were:

Oregon's Finest

Most hours logged: Oregon’s Finest Green Team, 35 hours

Environmental Science Associates

Most debris collected: Environmental Science Associates, 430 gallons of debris


Most trash collected: Culminate Portland, 390 gallons of trash collected


Most interesting find: Murraysmith, Jack Daniels and a bike chain


We also handed out an MVP (Most Valuable Partner) award to the Surfrider Foundation, Portland Chapter for organizing monthly and special holiday volunteer events to collect a total of 616 gallons of trash throughout the year.

Thank you to all the Green Street Stewards who contributed to keeping our rivers clean this year. We look forward to all the great work that will be done in 2018!

To volunteer as a Green Street Steward, visit our website at

Or email us at

Don’t forget to log your hours so you too can be a winner!

April showers bring…trees!

April is the perfect time to celebrate trees, and your last chance to get a Treebate until September!

April 10, 2017

It’s only natural that we should choose April to celebrate trees. Not only do we celebrate Arbor Day in April, but as the weather warms, trees shake off their dormancy and demand our attention with unfurling leaves, beautiful flowers, and the promise of fruit and shade to come. But trees’ renewed vigor also marks the end of planting season. Your last opportunity to get a Treebate for that tree you planted this winter (or have been meaning to plant) is fast approaching!

There are lots of reasons to celebrate trees, and lots of reasons you may choose to plant one in your yard. As the bureau tasked with keeping our rivers clean, Environmental Services celebrates trees’ ability to slow and reduce runoff from rainstorms, helping to prevent pollution from reaching our waterways. When you plant a tree with enough room to be as big and beautiful as it can be, you’re our partner in clean rivers! To say thank you, we offer half the purchase price of eligible trees, up to $15 for small, $25 for medium, and $50 for large-stature trees, as a rebate on your city sewer/stormwater/water bill.

This April, celebrate Arbor Day at your own home; bring home May flowers and get a little money back.

 magnolia blooms

Magnolia blooms brighten a cloudy day and herald brighter days to come.

hummingbird in pine

This pine wears its foliage with distinction year-round, welcome camouflage for a spring nest.

You're Invited! SW Watersheds Open House

Learn how we're working with partners to improve fish and wildlife habitat and infrastructure in SW Portland

You’re Invited to the annual Southwest Watersheds Open House! Come learn about SW Watershed Improvement Projects.

When: Wednesday, April 25, 2018, 5:30 p.m. to 7:30 p.m.

Where: Multnomah Center, gym - 7688 SW Capitol Highway

Stop by on your way home for refreshments, kids’ activities and information.

Environmental Services (BES) works with SWNI, the southwest community, other City bureaus, and partner organizations to develop plans and projects to improve water quality, address public interests, enhance fish and wildlife habitat, improve infrastructure, and restore watershed functions.

Please join BES and SWNI at this open house to discuss recently completed and current projects and give feedback on projects in planning and early design phases. Your participation helps shape plans to fit the neighborhood.

Stop by on your way home for refreshments and information about plans and projects to improve the health of SW Portland’s watersheds. Kids’ activities will be available, and all are welcome. To request translation services, contact

A number of exciting projects in SW Portland will be highlighted, including:

Beaverton-Hillsdale Highway Stormwater Projects, Shattuck Phase

Stormwater improvements along Beaverton-Hillsdale Highway at Shattuck will protect Fanno Creek from stormwater pollution and increase pedestrian safety. Construction expected in summer 2018.

Boones Ferry Road Culvert Replacement Project

boones ferry culvert to be removed

Tryon Creek flows through a culvert under SW Boones Ferry Road that creates a barrier for fish moving to habitats in upper Tryon and Arnold creeks. Environmental Services is working with many partners to replace the culvert with a bridge. Construction expected in 2019.

Dickinson Park Stream Restoration

In collaboration with Portland Parks & Recreation, this BES stream restoration project will create wetland and floodplain benches, restore natural stream processes and function, and remove an abandoned pump house, footbridge, pipes and other structures. Construction expected in summer 2018. 

SW Capitol Highway: Multnomah Village to West Portland

BES is working in coordination with Portland’s Bureau of Transportation (PBOT) on street and stormwater improvements on SW Capitol Highway from SW Garden Home to SW Taylors Ferry roads. This project will improve safety and accessibility of travel while improving stormwater management and protecting water quality in local creeks and streams.

The one-mile stretch of SW Capitol Highway between SW Garden Home and Taylors Ferry roads has no sidewalks, bike lanes, or pedestrian crossings and limited stormwater infrastructure. For more than 20 years, community members have been advocating for better walking and biking conditions on SW Capitol Highway.

The Capitol Highway: Multnomah Village to West Portland project will provide pedestrian and bicycle infrastructure and stormwater management through the project zone and in certain areas within the surrounding drainage basins. Construction expected in 2019.

SW Capital Hwy preliminary design meeting

Learn more about southwest watersheds and additional projects in the area on the web at

For questions, comments or more information, contact Becky Tillson at 503-823-7097 or

See you on April 25th!


Alien Plant Invader: Lesser Celandine

Learn how to spot and remove this troublesome invasive plant

Lesser CelandineThis friendly looking plant is popping up in lawns and parking strips across Portland, but don't be deceived!

It’s called lesser celandine. Like a lot of invasive plants, it is able to out-compete native plants. We need your help in the battle against invasives like this one.

Lesser celandine (Ranunculus ficaria) emerges earlier in the spring than many native plants, allowing it to overtake areas quickly. This advantage allows lesser celandine to form dense patches displacing native plants, destroying wildlife habitat and ruining lawns. Diverse native plants that provide nectar and pollen for pollinating insects and birds lose out. Lesser celandine also dies back in the spring, which leaves hillsides and stream banks vulnerable to erosion that pollutes our rivers and streams. 

Lesser celandine grows above-ground from November to April, and flowers from late winter to early spring. The leaves are dark green with silvery markings, shiny, succulent, and kidney- or heart-shaped. The bright yellow flowers are often confused with the look-a-like marsh marigold (Caltha palustris), which is a native plant not known to occur in Portland metro region. You can identify lesser celandine because of the three light green sepals behind its petals. Lesser celandine produces finger-like tubers that form underground and tiny bulblets under the leaves. The tubers, bulblets and seeds can all spread rapidly.

Removing this plant is tricky. All parts of the plant as well as any soil near the plant must be placed in a bag and thrown in the trash. Tubers and bulblets must be dug up and disposed. Due to this time consuming process, manual control (digging) is only recommended for small patches (less than six feet wide) and the site must be re-checked annually.  

Do not compost lesser celandine or try to save surrounding soil.  We encourage land owners to contact Environmental Services with any additional questions. Find more information on City of Portland’s page about lesser celandine and from the Plant Conservation Alliance

Lesser Celandine Roots


Invasive species affect us all. They damage our forests, our streams and rivers, and our property. Nationwide, damages associated with invasive species are estimated to be $120 billion each year. In Oregon, the control of invasive weeds and the cost of the damages they create amounts to about $125 million each year. We know that it costs a lot less to control new invasive plants before they become infestations, but we need everyone’s help. Read more here about the problems caused by invasive species and why BES is particularly concerned about their impact on water quality.




Check out our previous posts on Alien Plant Invaders:

Johnson Creek Watershed Council’s 20th Annual Watershed Wide Volunteer Restoration Event

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The event will span ten locations and takes place Saturday, March 3rd, from 9 a.m. to Noon

Salmon inspired the Johnson Creek Watershed Wide event 20 years ago, and now you can be a part of this grassroots habitat restoration movement, too. Our partners need 200 more volunteers, so gather your group and join us!

Together volunteers will restore habitat and water quality at TEN work party events throughout Johnson Creek Watershed. Take part in the action to help build a healthier watershed for your human and animal neighbors by planting native trees, mulching and removing invasive species! And we’re doing all of this… wearing COSTUMES! That’s right – we’re going big this year and we can’t wait to see the crazy, wild outfits you’ll be wearing. So, here are the details…

What: Plant, dig, mulch, weed, and look fabulous

When: Saturday, March 3rd 2018, 8:45am -12pm

Where: 10 locations across the watershed

Why: To build a healthier watershed by planting native trees, fighting invasive species, and connecting people to their environment

This is a family-friendly event. Everyone and all experience levels are welcome. Bring a team of coworkers, friends, or family members. We will provide tools, snacks, and tons of FUN!

Thank you pizza parties and costume contests in 2 locations (12:30-1:30.)

Register HERE

**A big thanks to all the sponsors and partners who work with Johnson Creek Watershed Council to make this happen: The Mintkeski Family Fund of the Oregon Community Foundation, Clackamas County's Water Environment Services, Portland Parks and Recreation, City of Gresham, Friends of Trees, Crystal Springs Partnership, Friends of Tideman Johnson, Friends of Powell Butte, Freeway Lands, Overland Park Coalition.**

Questions? Call Volunteer Coordinator Courtney at 503-652-7477 ext 101