"Just as a car needs service, so does your septic system." Spectrum Research provides environmental assessments for residential and commercial businesses in Duluth, MN. We have been serving the area for 27 years and have a Professional Soil Scientist. We also provide ISTS Design & Assessments, Water and Soil Testing and Research Contracting.

Phone: (218) 525-5322

Cross Streets: Between 50th Ave E and N 49th Ave E