On September 22, 2023, EPA Region 10 filed an expedited settlement agreement resolving violations of the Industrial Stormwater General Permit by Herco, Inc., located in Lewiston, Idaho. Herco, Inc. is the owner and operator of the Herco, Inc. Asphalt Paving Plant facility and failed to conduct indicator monitoring and maintain their Stormwater Pollution Prevention Plan (SWPPP) to the written standard. Since erosion leads to sediment and other pollutants entering Waters of the United States, EPA estimates that this action has helped reduce 102 lbs of sediment from discharging off-site and reaching the Clearwater River. The Respondent has agreed to pay a penalty of $4,395 and has returned to compliance. The facility impacts an area with environmental justice concerns.