Commenting open: June 09, 2026 12:00AM CT - July 09, 2026 11:59PM CT.
Hibbing Gas Manufacturing Plant Superfund Site - Minnesota Decision Document - Remediation
We invite you to comment on the draft Minnesota Decision Document for the Hibbing Gas Manufacturing Plant Superfund Site located at 235 41st Street West in Hibbing, Minnesota.
The former Site facilities were operated by the Hibbing Public Utilities Commission (HPUC), a municipal utility established and operating under Minn. Stat. ch. 412 and certain Minnesota Laws. The former facilities were operated as a coal gasification plant from 1918 to 1923, as a carbureted water gas plant from 1923 to 1946, and as a propane gas plant from 1946 to 1969. The onsite buildings and other above-ground infrastructure were demolished in approximately 1980, although many of the foundations remain. The area of the Site where the coal gas manufacturing occurred (Manufacturing Area) is approximately 4.5 acres in size and is presently used as an equipment and supply storage yard by HPUC.
Coal tar and other process wastes from the gas plant were discharged to an adjacent 10-acre wetland (Wetland Discharge Area). Historic aerial photos show the wetland was filled after closure of the gas plant. Coal tar, coal ash, boiler slag, and impacted soil are present below the fill layer in an approximately 3-acre area of the Wetland Discharge Area. Data from soil borings conducted in this area indicate the fill cover overlying impacted soils is approximately 1.5 to 7 feet thick and is serving as a protective cover.
The MPCA is seeking written comments from the public before the decision document is finalized. The MPCA will accept written comments until July 9, 2026.
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Thank you for subscribing to the Hibbing Gas Manufacturing Plant Superfund Site - Minnesota Decision Document - Remediation mailing list.
We invite you to comment on the draft Minnesota Decision Document for the Hibbing Gas Manufacturing Plant Superfund Site located at 235 41st Street West in Hibbing, Minnesota.
The former Site facilities were operated by the Hibbing Public Utilities Commission (HPUC), a municipal utility established and operating under Minn. Stat. ch. 412 and certain Minnesota Laws. The former facilities were operated as a coal gasification plant from 1918 to 1923, as a carbureted water gas plant from 1923 to 1946, and as a propane gas plant from 1946 to 1969. The onsite buildings and other above-ground infrastructure were demolished in approximately 1980, although many of the foundations remain. The area of the Site where the coal gas manufacturing occurred (Manufacturing Area) is approximately 4.5 acres in size and is presently used as an equipment and supply storage yard by HPUC.
Coal tar and other process wastes from the gas plant were discharged to an adjacent 10-acre wetland (Wetland Discharge Area). Historic aerial photos show the wetland was filled after closure of the gas plant. Coal tar, coal ash, boiler slag, and impacted soil are present below the fill layer in an approximately 3-acre area of the Wetland Discharge Area. Data from soil borings conducted in this area indicate the fill cover overlying impacted soils is approximately 1.5 to 7 feet thick and is serving as a protective cover.
The MPCA is seeking written comments from the public before the decision document is finalized. The MPCA will accept written comments until July 9, 2026.
Contact Information
*Indicates Required Fields