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United States of America v. Kayla Hartley
Date: 05-20-2026
Case Number: 3:25-cr-00295-IM
Judge: Karin J. Immergut
Court: United States District Court for the District of Oregon (Multnomah County)
Plaintiff's Attorney: Andrew T. Ho and Gwendolyn Russell
Defendant's Attorney:
Description:
Portland, Oregon, criminal defense lawyer represented the Defendant charged with violating the Clean Water Act .
Reported by Kent Morlan
Kayla Hartley, 36, of Portland, Oregon, discharged 500,000 gallons of industrial wastewater contaminated with hydrofluoric acid and toxic metals to the sanitary sewer without approval.
from February through September 2020, Hartley, as the Director of Operations at the Northwest Slurry Solutions and Hydro Excavation, LLC (“Northwest Slurry”) facility in Hillsboro, Oregon, marketed the company as able to accept and dispose of industrial wastewater, despite having no permit or authorization to discharge that type of waste. Under Hartley’s leadership, Northwest Slurry accepted approximately 500,000 gallons of industrial wastewater containing chemical pollutants including hydrofluoric acid, titanium, molybdenum, vanadium, arsenic, and other heavy metals. Northwest Slurry discharged those half-a-million gallons of pollution to the Hillsboro sanitary sewer.
When staff from Clean Water Services, which operates the sanitary sewer system in Hillsboro, visited Northwest Slurry’s facility, Hartley attempted to conceal the fact that her company was discharging industrial wastewater.
On July 15, 2025, a federal grand jury in Portland returned an indictment charging Hartley with conspiracy to violate and violating the Clean Water Act.
On January 21, 2026, Hartley pleaded guilty to conspiracy to violate the Clean Water Act.
U.S. Attorney Scott E. Bradford for the District of Oregon made the announcement.
This case was investigated by the EPA Criminal Investigation Division with assistance from Clean Water Services.
Reported by Kent Morlan
Kayla Hartley, 36, of Portland, Oregon, discharged 500,000 gallons of industrial wastewater contaminated with hydrofluoric acid and toxic metals to the sanitary sewer without approval.
from February through September 2020, Hartley, as the Director of Operations at the Northwest Slurry Solutions and Hydro Excavation, LLC (“Northwest Slurry”) facility in Hillsboro, Oregon, marketed the company as able to accept and dispose of industrial wastewater, despite having no permit or authorization to discharge that type of waste. Under Hartley’s leadership, Northwest Slurry accepted approximately 500,000 gallons of industrial wastewater containing chemical pollutants including hydrofluoric acid, titanium, molybdenum, vanadium, arsenic, and other heavy metals. Northwest Slurry discharged those half-a-million gallons of pollution to the Hillsboro sanitary sewer.
When staff from Clean Water Services, which operates the sanitary sewer system in Hillsboro, visited Northwest Slurry’s facility, Hartley attempted to conceal the fact that her company was discharging industrial wastewater.
On July 15, 2025, a federal grand jury in Portland returned an indictment charging Hartley with conspiracy to violate and violating the Clean Water Act.
On January 21, 2026, Hartley pleaded guilty to conspiracy to violate the Clean Water Act.
U.S. Attorney Scott E. Bradford for the District of Oregon made the announcement.
This case was investigated by the EPA Criminal Investigation Division with assistance from Clean Water Services.
Outcome:
The Defendant was sentenced to Five (5) Months; SUPERVISED RELEASE: Three (3) Years; SPECIAL ASSESSMENT: $100.00; FINE: $25,000.00
Plaintiff's Experts:
Defendant's Experts:
Comments:
About This Case
What was the outcome of United States of America v. Kayla Hartley?
The outcome was: The Defendant was sentenced to Five (5) Months; SUPERVISED RELEASE: Three (3) Years; SPECIAL ASSESSMENT: $100.00; FINE: $25,000.00
Which court heard United States of America v. Kayla Hartley?
This case was heard in United States District Court for the District of Oregon (Multnomah County), OR. The presiding judge was Karin J. Immergut.
Who were the attorneys in United States of America v. Kayla Hartley?
Plaintiff's attorney: Andrew T. Ho and Gwendolyn Russell. Defendant's attorney: .
When was United States of America v. Kayla Hartley decided?
This case was decided on May 20, 2026.