Red dye helps measure health of Stillaguamish

ARLINGTON — The sun was going down and the river ran red.

It wasn’t the reflection of the sunset, however.

Earlier this week, state Department of Ecology researchers Markus Von Prause and Ralph Svrjcek waded out hip-deep into the Stillaguamish to pour fluorescent red dye into the river as part of water quality study.

Fluorometers activated throughout the night measured the concentration of the dye in a dozen locations from Haller Park in Arlington downstream about six miles to I-5. The monitors collected data about river travel times, temperature, oxygen levels and how fast the dye, representing pollution, dissipated in the river.

The dye doesn’t harm people, fish or wildlife, but Svrjcek and Von Prause wore gloves as they placed the dye in the Stilly. Sunbathers along the river’s edge had gone home and the river was quiet.

The Stillaguamish River has a shortage of oxygen in some places in the area, making it difficult for fish, such as chinook salmon fry, to survive. Too much nutrient pollution, like phosphorus and nitrogen, leads to oxygen shortages, Svrjcek said.

The research gathered from the dye test won’t be available for several months. The results should help Ecology update its 2007 water-quality improvement plan, which guides efforts to control sources of pollutants in the Stillaguamish watershed, Ecology officials said.

Since the last study, the city of Arlington has built a state-of-the-art sewer treatment plant and is even cleaning up its stormwater before letting it run into the river.

Recent tests have shown that what the city discharges into the river is cleaner than what it takes out at its treatment plant to provide water to people in Arlington, said James Kelly, public works director for the city.

Pollution could come from a variety of other sources in the area, including groundwater, Svrjcek said.

“The dye test is just one of many that the state patches together to form a complicated picture of the health of the river,” he said. “One weak link can create problems for fish. Our goal is healthy fish in a healthy river.”

More information is available at tinyurl.com/doeStilly.

Gale Fiege: 425-339-3427; gfiege@heraldnet.com.

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

A firefighter stands in silence before a panel bearing the names of L. John Regelbrugge and Kris Regelbrugge during the ten-year remembrance of the Oso landslide on Friday, March 22, 2024, at the Oso Landslide Memorial in Oso, Washington. (Ryan Berry / The Herald)
‘Flood of emotions’ as Oso Landslide Memorial opens on 10th anniversary

Friends, family and first responders held a moment of silence at 10:37 a.m. at the new 2-acre memorial off Highway 530.

Julie Petersen poses for a photo with images of her sister Christina Jefferds and Jefferds’ grand daughter Sanoah Violet Huestis next to a memorial for Sanoah at her home on March 20, 2024 in Arlington, Washington. Peterson wears her sister’s favorite color and one of her bangles. (Annie Barker / The Herald)
‘It just all came down’: An oral history of the Oso mudslide

Ten years later, The Daily Herald spoke with dozens of people — first responders, family, survivors — touched by the deadliest slide in U.S. history.

Victims of the Oso mudslide on March 22, 2014. (Courtesy photos)
Remembering the 43 lives lost in the Oso mudslide

The slide wiped out a neighborhood along Highway 530 in 2014. “Even though you feel like you’re alone in your grief, you’re really not.”

Director Lucia Schmit, right, and Deputy Director Dara Salmon inside the Snohomish County Department of Emergency Management on Friday, March 8, 2024, in Everett, Washington. (Ryan Berry / The Herald)
How Oso slide changed local emergency response ‘on virtually every level’

“In a decade, we have just really, really advanced,” through hard-earned lessons applied to the pandemic, floods and opioids.

Ron and Gail Thompson at their home on Monday, March 4, 2024 in Oso, Washington. (Olivia Vanni / The Herald)
In shadow of scarred Oso hillside, mudslide’s wounds still feel fresh

Locals reflected on living with grief and finding meaning in the wake of a catastrophe “nothing like you can ever imagine” in 2014.

The rezoned property, seen here from the Hillside Vista luxury development, is surrounded on two sides by modern neighborhoods Monday, March 25, 2024, in Lake Stevens, Washington. (Ryan Berry / The Herald)
Despite petition, Lake Stevens OKs rezone for new 96-home development

The change faced resistance from some residents, who worried about the effects of more density in the neighborhood.

Rep. Suzan DelBene, left, introduces Xichitl Torres Small, center, Undersecretary for Rural Development with the U.S. Department of Agriculture during a talk at Thomas Family Farms on Monday, April 3, 2023, in Snohomish, Washington. (Olivia Vanni / The Herald)
Under new federal program, Washingtonians can file taxes for free

At a press conference Wednesday, U.S. Rep. Suzan DelBene called the Direct File program safe, easy and secure.

Former Snohomish County sheriff’s deputy Jeremie Zeller appears in court for sentencing on multiple counts of misdemeanor theft Wednesday, March 27, 2024, at Snohomish County Superior Court in Everett, Washington. (Ryan Berry / The Herald)
Ex-sheriff’s deputy sentenced to 1 week of jail time for hardware theft

Jeremie Zeller, 47, stole merchandise from Home Depot in south Everett, where he worked overtime as a security guard.

Everett
11 months later, Lake Stevens man charged in fatal Casino Road shooting

Malik Fulson is accused of shooting Joseph Haderlie to death in the parking lot at the Crystal Springs Apartments last April.

T.J. Peters testifies during the murder trial of Alan Dean at the Snohomish County Courthouse on Tuesday, March 26, 2024 in Everett, Washington. (Olivia Vanni / The Herald)
Bothell cold case trial now in jury’s hands

In court this week, the ex-boyfriend of Melissa Lee denied any role in her death. The defendant, Alan Dean, didn’t testify.

A speed camera facing west along 220th Street Southwest on Tuesday, Nov. 21, 2023 in Edmonds, Washington. (Olivia Vanni / The Herald)
New Washington law will allow traffic cams on more city, county roads

The move, led by a Snohomish County Democrat, comes as roadway deaths in the state have hit historic highs.

Mrs. Hildenbrand runs through a spelling exercise with her first grade class on the classroom’s Boxlight interactive display board funded by a pervious tech levy on Tuesday, March 19, 2024 in Marysville, Washington. (Olivia Vanni / The Herald)
Lakewood School District’s new levy pitch: This time, it won’t raise taxes

After two levies failed, the district went back to the drawing board, with one levy that would increase taxes and another that would not.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.