| #Q001 | administrative | unknown | mandatory | Categorical Pretreatment Standards Applicability | wastewater | industrial users discharging to POTWs that do not discharge are still subject to national categorical pretreatment standards. | industrial users discharging to POTWs that do not discharge | medium |
| #Q002 | reporting | reporting | mandatory | RCRA Hazardous Waste Notification | wastewater | requiring them to notify EPA whether RCRA "hazardous waste" is received by the POTW. | whether RCRA "hazardous waste" is received by the POTW | medium |
| #Q003 | reporting | reporting | mandatory | Pesticide Pollution Prevention Baseline Monitoring Report | wastewater | a baseline monitoring report required of industrial users of sewer systems when the industry opts to use the pollution prevention option of the pesticide national categorical pretreatment standards. | when the industry opts to use the pollution prevention option of the pesticide national categorical pretreatment standards | medium |
| #Q004 | administrative | unknown | guidance | R&D Facility Applicability Determination | wastewater | regulators can apply to help determine whether the wastewater from a facility that conducts R&D should be subject to ELGs or categorical standards. | facility that conducts R&D | low |
| #Q005 | administrative | reporting | mandatory | NPDES 2023 Form Version Requirement | wastewater | Applicants for EPA-issued NPDES permits are to use the new application forms as revised in 2023 posted below. | Applicants for EPA-issued NPDES permits | high |
| #Q006 | administrative | reporting | mandatory | NPDES Individual Permit Signature Requirement | wastewater | You must print and then sign the form as EPA does not accept electronic signatures on individual NPDES permit applications. | Individual NPDES permit applications | high |
| #Q007 | administrative | reporting | mandatory | NPDES Form 1 General Applicability | 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. | All applicants for individual NPDES permits except POTWs and TWTDS | high |
| #Q008 | administrative | reporting | mandatory | NPDES Form 2A POTW Applicability | wastewater | Complete this form if your facility is a new or existing POTW. | Facility is a new or existing POTW | high |
| #Q009 | administrative | reporting | mandatory | NPDES Form 2B CAFO/CAAP Applicability | wastewater, agricultural water | 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. | New or existing CAFO or CAAP facility | high |
| #Q010 | administrative | reporting | mandatory | NPDES Form 2C Existing Process Wastewater Applicability | 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 with process wastewater | high |
| #Q011 | administrative | reporting | mandatory | NPDES Form 2F Combined Stormwater Discharge 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 composed of both stormwater and non-stormwater | high |
| #Q012 | administrative | reporting | mandatory | NPDES Form 2S TWTDS Applicability | wastewater | Complete Form 2S if you are a new or existing TWTDS. | New or existing Treatment Works Treating Domestic Sewage (TWTDS) | high |
| #Q013 | administrative | reporting | recommended | State NPDES Application Form Determination | 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. | Facility located in a jurisdiction where a state administers the NPDES program | high |
| #Q014 | operational | reporting | recommended | NPDES Application Submission Procedure | 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. | Applicants for EPA-issued NPDES permits using fillable PDF forms | high |
| #Q015 | administrative | reporting | mandatory | NPDES Form 2D New Process Wastewater Applicability | 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 |
| #Q016 | administrative | reporting | mandatory | NPDES Form 2E Nonprocess Wastewater Applicability | 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. | New or existing manufacturing, commercial, mining, or silvicultural facility discharging only nonprocess wastewater | high |
| #Q017 | administrative | reporting | mandatory | NPDES Form 2F Industrial Stormwater Applicability | 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 specific construction activities) | high |
| #Q018 | administrative | reporting | mandatory | NPDES Form Determination Consultation | wastewater | To determine the specific forms you must complete, consult the ‐General Instructions‑ for this form. | When determining specific application forms required for individual NPDES permits | high |
| #Q019 | administrative | reporting | guidance | Application Tip Sheet Review | wastewater | Before completing the forms, review [ ] (85.36 KB) | Prior to completing EPA-issued NPDES application forms | high |
| #Q020 | operational | reporting | guidance | Software Guidance for PDF Forms | wastewater | Note: For the best results, use Adobe Acrobat Reader DC to open these files | When opening and filling the EPA NPDES fillable PDF application forms | high |
| #Q021 | administrative | reporting | guidance | Regional NPDES Contact Consultation | wastewater | If you have questions while filling out the application forms, see Regional NPDES contacts. | When questions arise during the application process for EPA-issued permits | high |
| #Q022 | operational | treatment | mandatory | BMP - Leak and Spill Control | wastewater | control of leaks and spills | For subparts B (Bleached Papergrade Kraft and Soda) and E (Papergrade Sulfite) | high |
| #Q023 | operational | treatment | mandatory | BMP - Spent Liquor Diversion Control | wastewater | control intentional diversions of spent pulping liquor, soap, and turpentine | For subparts B (Bleached Papergrade Kraft and Soda) and E (Papergrade Sulfite) | high |
| #Q024 | reporting | reporting | guidance | Chloroform Compliance Self-Certification | wastewater | allows demonstration of compliance by self-certification | Subpart B facilities; in conjunction with reduced monitoring requirements for chloroform | high |
| #Q025 | reporting | reporting | mandatory | Milestones Plan Requirement | wastewater | milestones plan requirements | Follow-up to 1998 rule (Cluster Rule) | high |
| #Q026 | monitoring | reporting | mandatory | Analytical Method for Chlorinated Phenolics | wastewater | Approved an analytical method for measurement of chlorinated phenolics. | When performing measurement of chlorinated phenolics | high |
| #Q027 | administrative | operational | mandatory | DPR Criteria Adoption Deadline | drinking water | AB 574 requires the State Water Board to adopt uniform water recycling criteria for DPR through raw water augmentation on or before December 31, 2023. | raw water augmentation | high |
| #Q028 | administrative | health | mandatory | Expert Panel Health Protection Finding | drinking water | Before the State Water Board can adopt uniform water recycling criteria for DPR raw water augmentation, an expert panel must review the proposed criteria and make a finding as to whether, in its expert opinion, the proposed criteria would adequately protect public health (Water Code section 13561.2). | Prior to adoption of DPR criteria | high |
| #Q029 | administrative | operational | mandatory | Expert Panel Research Consultation | drinking water | If the State Water Board finds that it is not able to adopt uniform water recycling criteria for DPR due to insufficient information from the DPR research conducted, the State Water Board must consult with the expert panel regarding the research and the need for additional scientific and technical research necessary for the State Water Board to complete the criteria, including the estimated time frame needed to conduct the additional research. | If criteria cannot be adopted due to insufficient research information | high |
| #Q030 | prohibition | reporting | mandatory | Advance Copy Comment Prohibition | drinking water | Do not submit comments to the State Water Board on the advance copy - all comments submitted before the start of the formal 45-day public comment period will not be considered by the State Water Board. | During the posting period of the advance copy of draft regulation text | high |
| #Q031 | administrative | reporting | guidance | Official Regulation Text Advisory | drinking water | Stakeholders are cautioned to obtain the official version of the proposed regulations once the Notice of Proposed Rulemaking is published. | When reviewing proposed DPR regulations for the purpose of public comment | high |
| #Q032 | design | treatment | mandatory | Research-Based Criteria Development Mandate | drinking water | Develop DPR criteria using information from the DPR research recommended in the State Water Board’s Report to the Legislature, after soliciting stakeholder input. | As required by AB 574 | high |
| #Q033 | administrative | health | mandatory | Expert Panel Administration Requirement | drinking water | Establish and administer an expert review panel to review the proposed criteria and make a finding as to whether, in its expert opinion, the proposed criteria would adequately protect public health. | As required by AB 574 | high |
| #Q034 | administrative | reporting | mandatory | Mandatory Stakeholder Consultation Groups | drinking water | soliciting stakeholder input from water agencies, wastewater agencies, local public health officers, environmental organizations, environmental justice organizations, public health nongovernmental organizations, and the business community as required by section 13561.2(a)(1). | Development of anticipated criteria for direct potable reuse | high |