Commenting open: September 09, 2024 12:00AM CT - October 09, 2024 11:59PM CT.
St. Croix Forge - Wastewater Permit
We invite you to comment on the draft wastewater permit for St. Croix Forge in Forest Lake.
St. Croix Forge manufactures horseshoes at its facility in Forest Lake. The production process uses water-cooled induction heaters to heat the raw material prior to forging as well as three closed-circuit cooling towers cooled by evaporation to manage temperature. The facility discharges wastewater and stormwater to an unnamed wetland and eventually to Clear Lake.
The draft water quality permit adds limits on nitrite plus nitrate, total kjeldahl nitrogen, and total nitrogen to existing limits on biochemical oxygen demand, total suspended solids, pH, and phosphorus. The draft permit also continues current monitoring requirements.
Wastewater from industrial and commercial sources may contain pollutants at levels that could adversely affect the water quality in area wetlands, streams, rivers, and lakes. Water quality permits - or National Pollutant Discharge Elimination System (NPDES) permits - establish specific limits and requirements to protect Minnesota's surface and groundwater quality. All wastewater must be treated before it goes into surface water to protect human health and aquatic life. Permits are regularly reviewed and updated as they expire, allowing the MPCA to incorporate new information about the impacts of pollutants on the environment in future permits.
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We invite you to comment on the draft wastewater permit for St. Croix Forge in Forest Lake.
St. Croix Forge manufactures horseshoes at its facility in Forest Lake. The production process uses water-cooled induction heaters to heat the raw material prior to forging as well as three closed-circuit cooling towers cooled by evaporation to manage temperature. The facility discharges wastewater and stormwater to an unnamed wetland and eventually to Clear Lake.
The draft water quality permit adds limits on nitrite plus nitrate, total kjeldahl nitrogen, and total nitrogen to existing limits on biochemical oxygen demand, total suspended solids, pH, and phosphorus. The draft permit also continues current monitoring requirements.
Wastewater from industrial and commercial sources may contain pollutants at levels that could adversely affect the water quality in area wetlands, streams, rivers, and lakes. Water quality permits - or National Pollutant Discharge Elimination System (NPDES) permits - establish specific limits and requirements to protect Minnesota's surface and groundwater quality. All wastewater must be treated before it goes into surface water to protect human health and aquatic life. Permits are regularly reviewed and updated as they expire, allowing the MPCA to incorporate new information about the impacts of pollutants on the environment in future permits.
Contact Information
*Indicates Required Fields