ID DEQ Environmental RSS

ID DEQ Awards $1.8M to Lewiston for PFOS and PFOA Water Cleanup

The Idaho Department of Environmental Quality awarded $1,800,000 in low-interest drinking water emerging contaminant construction loan funding to the City of Lewiston in Nez Perce County. The funding will address PFOS and PFOA emerging contaminants by constructing a carbon dioxide system at the water treatment plant and decommissioning Well 4. The loan carries a 0% interest rate and $1,800,000 in principal forgiveness, representing $2,724,895 in savings compared to average municipal general obligation debt.

Simplot Permit Revision - Fluoride Emission Limits for Don Siding Plant

The Idaho Department of Environmental Quality is seeking public comments through May 1, 2026, on a draft permit revision for J.R. Simplot Company's Don Siding Plant near Pocatello. The proposed modification would incorporate a new annual fluoride emission limit for all reclaim cooling tower cells at the phosphate fertilizer manufacturing facility. DEQ's analysis indicates the proposed construction and operation will not violate ambient air quality standards or harm human health, animals, or vegetation.

Draft 401 Water Quality Certification for Payette River Estates Project

The Idaho Department of Environmental Quality (DEQ) is seeking public comment through April 22, 2026 on a draft Section 401 water quality certification for the Payette River Estates residential development project in Emmett, Idaho. The project involves piping and filling two irrigation supply ditches and two drainage ditches, resulting in 16,328 square feet of permanent wetland impacts.