Technical Guidance Manual (TGM) Breadcrumb Home Doing Business Watershed Management Ordinance and Infiltration/Inflow Watershed Management Ordinance (WMO) and Technical Guidance Manual (TGM) Technical Guidance Manual (TGM) Article/Title Version Date Introduction (95 KB) 2 5/31/2019 Article 2. Applicability and General Conditions (540 KB) 3 5/31/2019 Article 3. Watershed Management Permit Requirements and Submittals (412 KB) 3 5/31/2019 Article 4. Requirements for Erosion and Sediment Control (405 KB) 2 5/26/2020 Article 5. Requirements for Stormwater Management (3.1 MB) 3 5/26/2020 Article 6. Requirements for Flood Protection Areas (2.3 MB) 1 8/1/2015 Article 7. Requirements for Sewer Construction (1.1 MB) 2 10/13/2021 Article 8. Infiltration / Inflow Control Program (3.2 MB) 1 8/1/2015 Article 9. Maintenance (5.8 MB) 1 8/1/2015 Article 10. Inspections (1.5 MB) 1 8/1/2015 Article 14. Administration (639 KB) 2 6/28/2019 Appendix A. Definitions (185 KB) 3 5/16/2019 Appendix B. Cook County FIRMs (418 KB) 1 8/1/2015 Appendix C. Standard Details and Notes See Webpage Appendix D. Sample Completed IICP Report Forms (418 KB) 1 8/1/2015 Appendix E. Sewer Permit Ordinance and Manual of Procedures (3.6 MB) 1 5/16/2019