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| Stormwater – NOI Submittal | February 28 |
| EPCRA – Tier II Reports (submit on E-Plan) | March 1 |
| Biennial RCRA Hazardous Waste Reports (LQG) (even years) | March 1 |
| Title V Air Permit Annual Certification of Compliance/Semi-Annual Monitoring Report | March 31 |
| Title V Air Permit Annual Emissions Inventories | March 31 |
| Greenhouse Gas Reporting (submit at cdx.epa.gov) | March 31 |
| Annual Hazardous Waste Report/Fees | April 15 |
| Minor Source Emission Inventory (MSEIQ) (2) | May 15 |
| EPCRA – TRI Form R/A (submit at cdx.epa.gov) | July 1 |
| NPDES Annual Fee Payment | August 30 |
| Air Permit – Semi-Annual Monitoring Report (Title V) | Sept. 30 |
(1) Facility requirements should be verified to confirm due dates.
(2) Every 3 years. MSEIQ for emission year 2023 is due in 2024 for Western IA and portable plants (IDNR Field Offices 3 and 4).
Additional Environmental Requirements
Stormwater: General Permits (Nos. 1, 2, and 3) are effective 3/1/23 and expire 2/29/28: https://programs.iowadnr.gov/stormwater/pages/eAppIntro.aspx. Conduct monitoring and training as required and at least annually.
Hazardous Waste: Small and large quantity generators and anyone who treats, stores, disposes of or transports hazardous waste in Iowa must file a hazardous waste form and pay the appropriate fee to the IDNR by April 15.
Wastewater (NPDES/SDS): Discharge reports are required to be submitted at regular intervals, per permit requirements. Those required to submit DMR forms must do so within 30 days of sampling.
SPCC Plan: SPCC Plans must be updated every five years or whenever there is a change in oil storage or spill potential. Conduct and document routine inspections and annual training.
Air Permits/Emission Inventories: Individual permits may have additional requirements. Submit Title V Annual Emissions Inventories and MSEIQs electronically on SLEIS. Submit all construction permit applications; Title V operating permit applications & modifications; notifications of start of construction and start of operation electronically on Iowa EASYAir.
EPCRA TRI: Begin collecting data for RY2024 for reporting over 100 pounds of 189 specific PFAS chemicals (there is no de minimis exemption). See attached link for additional information: https://www.epa.gov/toxics-release-inventory-tri-program/basics-tri-reporting
(licensed in NE, IA, SD, and ND)
Senior Environmental Engineer
(531) 571 7105
Christian.New@terracon.com
For more information, or to contact local Terracon professionals, please click here.
More than 175 offices from coast to coast.