| #Q001 | administrative | reporting | mandatory | CSO Public Notification Requirement Establishment | wastewater | The January 8, 2018, rule implements Section 425 of the Consolidated Appropriations Act of 2016, which requires EPA to work with the Great Lakes States to establish public notification requirements for combined sewer discharges (CSOs) to the Great Lakes. | | high |
| #Q002 | reporting | reporting | mandatory | NPDES Electronic Reporting Requirement | wastewater | It requires permittees and regulators to use existing, available information technology to electronically report information and data related to the NPDES permit program in lieu of filing paper-based reports. | | high |
| #Q003 | monitoring | operational | mandatory | Sufficiently Sensitive Analytical Test Methods | wastewater | EPA finalized minor amendments to the NPDES regulations to require that its Clean Water Act (CWA) regulations to codify that under the NPDES program, only "sufficiently sensitive" analytical test methods may can be used when completing an NPDES permit application and when performing sampling and analysis pursuant to monitoring requirements in an NPDES permit. | when completing an NPDES permit application and when performing sampling and analysis pursuant to monitoring requirements in an NPDES permit | high |
| #Q004 | operational | operational | mandatory | Cooling Water Intake Aquatic Mortality Reduction Options | aquatic life, other | The facilities are required to choose one of seven options to reduce mortality to fish and other aquatic organisms. | Existing facilities that are designed to withdraw at least 2 million gallons per day of cooling water | high |
| #Q005 | monitoring | operational | mandatory | Cooling Water Intake Studies | aquatic life, other | Facilities that withdraw at least 125 million gallons per day must conduct studies to help their permitting authority determine whether and what site-specific controls, if any, would be required to further reduce mortality of aquatic organisms. | Facilities that withdraw at least 125 million gallons per day | high |
| #Q006 | design | treatment | mandatory | Cooling Water Intake New Units Entrainment Standards | aquatic life, other | New units added to an existing facility are required to reduce mortality of aquatic organisms that achieves one of two alternatives under national entrainment standards. | New units added to an existing facility | high |
| #Q007 | treatment | treatment | mandatory | CAAP Effluent Guideline Implementation | wastewater | NPDES permits for concentrated aquatic animal production (CAAP) facilities that produce 100,000 pounds or more of aquatic animals must include requirements to implement the effluent guidelines established at 40 CFR Part 451. | Concentrated aquatic animal production (CAAP) facilities that produce 100,000 pounds or more of aquatic animals | high |
| #Q008 | reporting | reporting | mandatory | CAAP General Reporting Requirements | wastewater | These facilities are subject to reporting requirements regarding: The use of certain drugs; Unanticipated discharges; and Developing and maintaining a BMP plan. | Concentrated aquatic animal production (CAAP) facilities that produce 100,000 pounds or more of aquatic animals | high |
| #Q009 | operational | operational | mandatory | CAAP Operational Requirements for Flow-Through and Net Pens | wastewater | CAAP facilities using flow-through and recirculating systems and net pens are subject to additional requirements dictated by the effluent guidelines. NPDES permits for these facilities include requirements for: Solids control (flow-through and recirculating systems only); Feed management, waste collection and disposal, transport or harvest discharge, and carcass removal (net pens only); Materials storage; Maintenance; Recordkeeping; and Training. | CAAP facilities using flow-through and recirculating systems and net pens | high |
| #Q010 | operational | operational | mandatory | Annual BMP Plan Updates | wastewater | Annual updates ensure the plans account for facility changes and new or innovative BMPs. | Concentrated aquatic animal production (CAAP) facilities | high |
| #Q011 | operational | treatment | mandatory | Solids Control Cleaning | wastewater | Routine cleaning of rearing units and settling basins minimizes discharge of accumulated solids. | Flow-through and recirculating CAAP systems | high |
| #Q012 | operational | operational | mandatory | Prompt Leak and Spill Cleanup | wastewater | Prompt cleanup of leaks and spills prevents pollutants from entering the receiving water. | Aquaculture facilities storing feed, drugs, chemicals, and pesticides | high |
| #Q013 | operational | operational | mandatory | Routine Facility Inspections | wastewater | Routine inspections by facility staff help identify damage and necessary repairs. | CAAP facilities | high |
| #Q014 | administrative | reporting | mandatory | Operational Recordkeeping | wastewater | Maintaining records on feeding, number and weight of aquatic animals, cleaning, inspections, maintenance, and repairs provides documentation that the operator has implemented required management activities. | CAAP facilities | high |
| #Q015 | operational | operational | mandatory | Staff Training on Spill Prevention and Operations | wastewater | Training staff on proper spill prevention, operation, and cleaning procedures prepares them to prevent and respond to accidental discharges and spills, operate the system efficiently, and reduce discharges of solids and nutrients. | CAAP facilities | high |
| #Q016 | operational | operational | mandatory | Escape Prevention and Response Planning | aquatic life | Escape prevention and response plans ensure that producers have procedures in place to prevent fish escape and can take action in the event fish escape occurs. | Net pen aquaculture facilities | high |
| #Q017 | operational | treatment | mandatory | Animal Mortality and Waste Disposal (Flow-Through) | wastewater | Removal and disposal of animal mortalities and wastes keeps them out of the receiving water. | Flow-through aquaculture facilities | high |
| #Q018 | operational | operational | mandatory | Facility Maintenance (Flow-Through) | wastewater | Regular maintenance keeps facilities functioning properly to maintain efficiency and prevent unintended discharges. | Flow-through aquaculture facilities | high |
| #Q019 | operational | treatment | mandatory | Feed Management (Net Pen) | wastewater | Efficient feed management, including real-time feed monitoring, helps control discharges of solids and nutrients. | Net pen aquaculture facilities | high |
| #Q020 | operational | operational | mandatory | Waste Collection and Disposal (Net Pen) | wastewater | Collection and proper disposal of feed bags, packaging, rope, and netting prevents their release to the surrounding environment. | Net pen aquaculture facilities | high |
| #Q021 | operational | treatment | mandatory | Transport or Harvest Discharge Management (Net Pen) | wastewater | Proper disposal of transport water and harvest wastes (e.g., blood, viscera, carcasses) minimizes waste materials discharged overboard. | Net pen aquaculture facilities | high |
| #Q022 | operational | treatment | mandatory | Carcass Removal (Net Pen) | wastewater | Regular and frequent removal of animal mortalities prevents their discharge to the surrounding water. | Net pen aquaculture facilities | high |
| #Q023 | reporting | reporting | mandatory | Great Lakes CSO Notification Components | wastewater, recreational water | The requirements address signage, initial notification of local public health departments and other potentially affected entities, initial notification of the public, annual notice provisions, and development of a public notification plan. | Combined sewer discharges (CSOs) to the Great Lakes | high |
| #Q024 | administrative | reporting | mandatory | Mandatory Use of 2023 Revised Forms | wastewater | Applicants for EPA-issued NPDES permits are to use the new application forms as revised in 2023 posted below. | For EPA-issued NPDES permits | high |
| #Q025 | administrative | reporting | mandatory | Physical Signature Requirement | wastewater | You must print and then sign the form as EPA does not accept electronic signatures on individual NPDES permit applications. | | high |
| #Q026 | administrative | reporting | mandatory | Signature Requirement for Application Completeness | wastewater | The NPDES regulations require a valid signature on all applications for individual NPDES permits for them to be deemed complete (see instructions for each form). | | high |
| #Q027 | administrative | reporting | mandatory | Form 1 Completion Requirement | wastewater | All applicants for individual NPDES permits, with the exception of publicly owned treatment works (POTWs) and other treatment works treating domestic sewage (TWTDS), must complete Form 1. | Excludes publicly owned treatment works (POTWs) and other treatment works treating domestic sewage (TWTDS) | high |
| #Q028 | administrative | reporting | mandatory | Supplemental Form Selection Requirement | wastewater | Additionally, all applicants must complete one or more of the following forms: 2B, 2C, 2D, 2E, or 2F. | All applicants completing Form 1 | high |
| #Q029 | administrative | reporting | mandatory | Form 2A Completion for POTWs | wastewater | Complete this form if your facility is a new or existing POTW. | Facility is a new or existing POTW | high |
| #Q030 | administrative | reporting | mandatory | Form 2B Completion for CAFO/CAAP | wastewater | Complete this form and Form 1 if your facility is a new or existing concentrated animal feeding operation (CAFO) or concentrated aquatic animal production (CAAP) facility. | Facility is a new or existing CAFO or CAAP facility | high |
| #Q031 | administrative | reporting | mandatory | Form 2C Completion for Existing Industrial Process Wastewater | wastewater | Complete this form and Form 1 if your facility is an existing manufacturing, commercial, mining, or silvicultural facility that currently discharges process wastewater. | Existing manufacturing, commercial, mining, or silvicultural facility discharging process wastewater | high |
| #Q032 | administrative | reporting | mandatory | Form 2D Completion for New Industrial Process Wastewater | wastewater | Complete this form and Form 1 if your facility is a new manufacturing, commercial, mining, or silvicultural facility that has yet to commence discharge of process wastewater. | New manufacturing, commercial, mining, or silvicultural facility yet to commence discharge of process wastewater | high |
| #Q033 | administrative | reporting | mandatory | Form 2E Completion for Industrial Nonprocess Wastewater | wastewater | Complete this form and Form 1 if your facility is a new or existing manufacturing, commercial, mining, or silvicultural facility that discharges only nonprocess wastewater. | Manufacturing, commercial, mining, or silvicultural facility discharging only nonprocess wastewater | high |
| #Q034 | administrative | reporting | mandatory | Form 2F Completion for Industrial Stormwater | wastewater | Complete this form and Form 1 if you are a new or existing facility whose discharge is composed entirely of stormwater associated with industrial activity, excluding discharges from construction activity under 40 CFR 122.26(b)(14)(x) or (b)(15). | Discharge composed entirely of stormwater associated with industrial activity (excluding construction) | high |
| #Q035 | administrative | reporting | mandatory | Form 2S Completion for TWTDS | wastewater | Complete Form 2S if you are a new or existing TWTDS. | New or existing TWTDS | high |
| #Q036 | administrative | reporting | recommended | State Program Contact for Forms | wastewater | If you are located in a jurisdiction in which a state administers the NPDES program, you should contact the state to determine the appropriate application form(s) to submit. | Located in a jurisdiction where a state administers the NPDES program | high |
| #Q037 | administrative | reporting | mandatory | Mixed Stormwater and Non-Stormwater Application Requirement | wastewater | If your discharge is composed of stormwater and non-stormwater, you must complete Forms 1 and 2F, and you must complete Form 2C, 2D, or 2E, as appropriate. | Discharge is composed of both stormwater and non-stormwater | high |
| #Q038 | administrative | reporting | guidance | Recommended PDF Software for Forms | wastewater | Note: For the best results, use Adobe Acrobat Reader DC to open these files (see EPA’s About PDF page to learn more). | When opening fillable PDF application forms | high |
| #Q039 | administrative | reporting | recommended | Application Completion and Submission Recommendation | wastewater | You should enter your facility information on the form, print it, sign it, and mail the form to the address stated in the instructions. | | high |