A man received a 10-year prison sentence for distributing more than 50 grams of fentanyl in Boulder County.

Gerson Arteaga-Izaguirre, 22, pleaded guilty on March 28 to one count of unlawful distribution of fentanyl — more than 50 grams. He was sentenced to 10 years on June 6, with 576 days credit for time served, according to online court records.

Arteaga-Izaguirre was charged in connection with an investigation that led to the seizure of more than 500 grams of fentanyl, according to a release. The Boulder County Drug Task Force, which led the investigation, also found small amounts of cocaine in fall 2023.

In June 2024, Arteaga-Izaguirre pleaded not guilty to 11 charges brought against him. In March, he pleaded guilty to the distribution charge in a plea deal.

The charges of two counts of unlawful distribution of fentanyl — more than 50 grams; two counts of being a special offender; three counts of prohibited counterfeit substances; and three counts of possession with intent to distribute fentanyl, one of which was in the area of a school, were dismissed as part of the plea deal.

Arteaga-Izaguirre was initially charged alongside Carlos Centeno-Izaguirre, 43, whose case is ongoing.

According to an affidavit, members of the Boulder County Drug Task Force were told by a confidential informant in September that Centeno-Izaguirre was coming up from Aurora to conduct large drug deals in Boulder involving “M30” pills, counterfeit oxycodone pills containing fentanyl.

The Federal Bureau of Investigation, the Boulder Police Department Special Enforcement Unit and the Longmont Department of Public Safety’s Special Investigations Unit also participated in the investigation.

Under the supervision of the task force, the confidential informant made several buys with Centeno-Izaguirre for 500 to 1,000 pills in September and October, with some of those deals occurring in parking lots within 1,000 feet of different schools.

According to the affidavit, Arteaga-Izaguirre was also at some of the buys because he drove Centeno-Izaguirre to the meetings.