Reporting can be done by phone or by email/fax. If by email or fax, use the Environmental and Occupational Illness Reporting Form found here: www.idph.state.ia.us/eh/reportable_diseases.asp
Iowa Department of Agriculture and Land Stewardship Pesticide Bureau: http://www.iowaagriculture.gov/Pesticide/pdf/2015/Enforcement2014_06FINAL.pdf
Iowa Legal Aid at 515-243-1198 (http://www.iowalegalaid.org/)