Governing Law and Regulations
Iowa Department of Natural Resources (DNR) Environmental Services Division Water Quality Bureau
University of Iowa State Hygienic Laboratory (SHL)
U.S. Environmental Protection Agency Region 7
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Iowa adopts by reference federal biological monitoring methods for facilities that are required to conduct toxicity testing of their wastewater discharges under the state's National Pollutant Discharge Elimination System (NPDES) permit program (IAC 567-63.1(455B)). State-specific monitoring requirements are reviewed that supplement federal rules in this section. Refer to the national section BIOASSAYS/BIOMONITORING for an overview of federal biomonitoring requirements.
The Iowa Department of Natural Resources (DNR) has been granted authority by the U.S. Environmental Protection Agency (EPA) to administer the NPDES permit program in Iowa. See the state section NPDES PERMIT for additional permit requirements.
The state has also established a certification program for environmental testing laboratories. Specific certifications are available ...