The industries employed an estimated 980 people. Most of the businesses in Franklin County purchase their water from a PWS or obtain their water from a private supply not requiring a permit. There is one water use permit for industry in Franklin County. There is no power production in Franklin County. Mining Water Use Mining in Franklin County consists of sand and gravel extraction.
Activity varies from year to year based upon construction needs.
Thirteen water permits were issued for mining in the county. The Iowa State-Wide Rural Well Water Survey, 1990. The UHL's test results for the county also show that in an average year 20.6 percent of wells tested for nitrates exceeded the recommended maximum. These test results are based on non-random samples. The University of Iowa Hygienic Laboratory, Private Well Water Quality, 1990-1994.