Dordt University Bioreactor

Sioux County, IA | Water

As part of the Dordt University research farm, ISG designed and constructed a bioreactor to be used as an educational tool for agricultural students and members of the community.


Sioux County, Iowa contains a high concentration of livestock impacting water quality.

To improve water quality within the region, ISG partnered with Dordt University to design a bioreactor in a scientific and reasonable manner while also supporting higher education outreach goals. Treating 365-acres, the unique site conditions allow for the conservation practice to treat two tile lines, reducing nutrient loading into Iowa waters.

As the largest ISG-designed bioreactor in Iowa, the project provided several educational opportunities including a field demonstration and observation of the woodchips in the chamber prior to the addition of the soil cap at the Sioux County Conservation Agricultural Fair.


Market News

ISG Celebrates 50 Years of Business, Ready for 50 More

March 21, 2023 (Mankato, Minnesota) – ISG turns 50 years old in 2023. The firm of over 500 multi-disciplinary professionals, ranging from architects and designers to engineers, technologists, marketers, and project managers, now spans across four states across the upper Midwest with 11 offices.
Read More

Environmental Firm to Host Southern Minnesota Lake Resources Conference

March 14, 2023 (Mankato, Minnesota) – ISG will host the inaugural Future of Southern Minnesota Lakes Conference on April 22, 2023, in Mankato, Minnesota. The conference will equip community members, lake associations, and lake stewards with the tools, approaches, and resources to care for the lakes of Southern Minnesota.
Read More