Compliance Inspection Manual for National Pollutant Discharge Elimination System

This manual presents standard procedures for National Pollutant Discharge Elimination System inspections of wastewater treatment plants, pretreatment facilities, and other sites.

• NPDES Compliance Inspection Manual (pdf) (16.21 MB, January 2017, 305-K-17-001)
• NPDES Compliance Inspection Manual without Appendices (pdf) (6.58 MB)
• NPDES Compliance Inspection Manual (Cover - Chapter 10) (pdf) (2.83 MB)
• NPDES Compliance Inspection Manual (Chapters 11 - 19) (pdf) (4.09 MB)
• NPDES Compliance Inspection Manual (Appendices A - AC) (pdf) (6.37 MB)
• NPDES Compliance Inspection Manual (Appendices AD - AR) (pdf) (3.85 MB)
• Chapter 1 - Introduction (pdf) (752.96 KB)
• Chapter 2 - Inspection Procedures (pdf) (517.64 KB)
• Chapter 3 - Documentation/Recordkeeping and Reporting (pdf) (341.91 KB)
• Chapter 4 - Facility Site Review - Wastewater Treatment Plants (pdf) (523.11 KB)
• Chapter 5 - Sampling (pdf) (420.5 KB)
• Chapter 6 - Flow Measurement (pdf) (416.91 KB)
• Chapter 7 - Laboratory Procedures and Quality Assurance (pdf) (395.71 KB)
• Chapter 8 - Toxicity (pdf) (462.34 KB)
• Chapter 9 - Pretreatment (pdf) (556.88 KB)
• Chapter 10 - Sewage Sludge (Biosolids) (pdf) (562.46 KB)
• Chapter 11 - Stormwater (pdf) (653.74 KB)
• Chapter 12 - Combined Sewer Overflows (pdf) (364.09 KB)
• Chapter 13 - Sanitary Sewer Overflows (pdf) (363.82 KB)
• Chapter 14 - Inspecting Green Infrastructure Controls (pdf) (1.14 MB)
• Chapter 15 - CAFO Program Inspections (pdf) (1.45 MB)
• Chapter 16 - Vessel General permit (VGP) (pdf) (783.34 KB)
• Chapter 17 - Pollution Prevention (pdf) (614.17 KB)
• Chapter 18 - Multimedia Concerns (pdf) (299.35 KB)
• Chapter 19 - Appearing as a Witness (pdf) (246.02 KB)
• Appendix A – EPA Order 3500.1, Training and Development for Individuals who lead Compliance Inspections/Field Investigations (pdf) (277.61 KB)
• Appendix B – EPA Order 3510, EPA Federal Credentials for Inspections and Enforcement of Environmental Statutes (pdf) (164.7 KB)
• Appendix C – EPA Order 1440.2, Health and Safety Requirements for Employees Engaged in Field Activities (pdf) (267.49 KB)
• Appendix D – EPA’s Memorandum on Practices to Follow and Avoid when Requesting Information (pdf) (294.62 KB)
• Appendix E – Sample CWA Section 308 Information Collection Request Letter (308 Letter) (pdf) (248.89 KB)
• Appendix F – Final Fact Sheet: The Do’s and Don’ts of Using U.S. EPA Credentials (pdf) (283.08 KB)
• Appendix G - EPA's Memorandum On Entry Procedures (pdf) (215.79 KB)
• Digital Image Guidance for EPA Civil Inspections and Investigations (pdf) (685.9 KB, June 2017, OECA-GUID-2017-001-R1)
• Appendix I – EPA's Memorandum On Deficiency Notice Guidance (pdf) (188 KB)
• Appendix J – Inspection Conclusion Data Summary (ICDS) (pdf) (237.25 KB)
• Appendix K – Draft Guidance for Releasing Civil Inspection Reports (pdf) (166.38 KB)
• Appendix L – Sample Discharge Monitoring Report (DMR) Form (pdf) (225.65 KB)
• Appendix M – Example Chain-of-Custody Form (pdf) (151.09 KB)
• Appendix N – Updated Fact Sheet: Department of Transportation Hazardous Materials (pdf) (219.48 KB)
• Appendix O – Supplemental Flow Measurement Information (pdf) (1.41 MB)
• Appendix P – Sludge Inspection Checklists (pdf) (384.11 KB)
• Appendix Q – No Exposure Certification Form (pdf) (3.13 MB)
• Appendix R – NPDES Industrial Storm Water Investigation and Case Development (Industrial) (pdf) (321.99 KB)
• Appendix S – Industrial Source Control BMP Questions (pdf) (194.93 KB)
• Appendix T – Notice of Termination for Stormwater (pdf) (701.12 KB)
• Appendix U – Typical "C" Coefficients (pdf) (210.1 KB)
• Appendix V – Rain Zones of the United States (pdf) (395.93 KB)
• Appendix W – NOAA Rainfall Worksheet (pdf) (162.37 KB)
• Appendix X – NPDES Industrial Storm Water Investigation and Case Development (Construction) (pdf) (307.82 KB)
• Appendix Y – Construction Source Control BMP Questions (pdf) (177.2 KB)
• Appendix Z – Infiltration Control Inspection Form (pdf) (227.2 KB)
• Appendix AA – Permeable Pavements Inspection Form (pdf) (248.65 KB)
• Appendix AB – Rainwater Harvest Inspection Form (pdf) (221.82 KB)
• Appendix AC – Green Roof Inspection Form (pdf) (219.01 KB)
• Appendix AD – Animal Industry Overview (pdf) (1.76 MB)
• Appendix AE – Management/Soil Science (pdf) (874.64 KB)
• Appendix AF – Standard Operating Procedure (SOP): Biosecurity Procedures for Visits to Livestock and Poultry Facilities (pdf) (254.71 KB)
• Appendix AG – Field and Personal Protective Equipment (pdf) (212.17 KB)
• Appendix AH – Mapping Tool (Region 5) (pdf) (192.2 KB)
• Appendix AI – Sample Permitted CAFO Inspection Checklist (pdf) (319.17 KB)
• Appendix AJ – Regional Inspections Checklists (pdf) (412.66 KB)
• Appendix AK – Growth Stages of Common Field Crops (pdf) (340.61 KB)
• Appendix AL – Inspection Introduction Letter (pdf) (442.58 KB)
• Appendix AM – Sampling Procedures and Equipment (pdf) (236.27 KB)
• Appendix AN – Sample Quality Assurance Project Plan (QAPP) (pdf) (461.88 KB)
• Appendix AO – Detailed Review of Nutrient Management Plan Implementation (pdf) (396.08 KB)
• Appendix AP – Inspection Report Template (R7) (pdf) (291.71 KB)
• Appendix AQ – Media-Specific Inspection Components (pdf) (374.26 KB)
• Appendix AR – National Multimedia Screening Inspection Worksheet (pdf) (209.99 KB)