| #Q001 | administrative | unknown | mandatory | Administrative Continuance of Permit Coverage | wastewater, other | The 2021 MSGP has been administratively continued in accordance with section 558(c) of the Administrative Procedure Act (see 40 CFR 122.6) and remains in force and effect for facilities/operators that were covered under the permit prior to the 2021 MSGP’s expiration. | Applies to facilities/operators that were covered under the permit prior to the 2021 MSGP’s expiration on February 28, 2026, at 11:59 p.m., eastern time. | high |
| #Q002 | administrative | unknown | mandatory | Automatic Coverage Under Permit Modification | wastewater, other | Any industrial facility operator that has permit coverage under the 2021 MSGP prior to the final issuance of the modification will automatically remain covered under the permit. | Operator must have permit coverage under the 2021 MSGP prior to the final issuance of the modification. | high |
| #Q003 | operational | operational | guidance | Maximization of Wet Weather Flows for Combined Sewers | wastewater | The CSO policy encourages municipalities with combined sewers to maximize wet weather flows to the treatment plant in order to decrease uncontrolled overflows in the collection system. | Municipalities with combined sewers during wet weather conditions | high |
| #Q004 | administrative | reporting | guidance | Integrated Planning Participation | wastewater, other | integrated planning offers a voluntary opportunity for a municipality to propose to meet multiple CWA requirements by identifying efficiencies from separate wastewater and stormwater programs and sequencing investments. | Optional proposal by a municipality | high |
| #Q005 | treatment | treatment | mandatory | Compliance with Secondary Treatment Standards | wastewater | Secondary Treatment Standards - Minimum, technology-based standards for discharges from municipal wastewater treatment facilities. | Discharges from municipal wastewater treatment facilities | high |
| #Q006 | treatment | treatment | mandatory | Compliance with National Pretreatment Program Standards | wastewater | The national pretreatment program identifies specific discharge standards and requirements that apply to sources of nondomestic wastewater discharged to a POTW. | Sources of nondomestic wastewater discharged to a POTW | high |
| #Q007 | prohibition | unknown | mandatory | Prohibition on New Combined Sewers | wastewater | State and local authorities generally have not allowed the construction of new combined sewers since the first half of the 20th century. | Construction of new sewer systems | high |
| #Q008 | operational | unknown | mandatory | NPDES Permit Compliance for Municipal Facilities | wastewater | NPDES permits establish discharge limits and conditions for discharges from municipal wastewater treatment facilities to waters of the United States. | Municipal wastewater treatment facilities discharging to waters of the United States | high |
| #Q009 | prohibition | health | mandatory | Prohibition of Cesspools for Sewage Disposal | wastewater | Fact sheet on the prohibition against and hazards of using cesspools for the disposal of sewage. | Applies to the disposal of sewage. | high |
| #Q010 | operational | treatment | mandatory | Regulation of Sewage Sludge and Domestic Septage Disposal | wastewater | Disposal of sewage sludge (biosolids) and domestic septage are regulated under EPA’s sewage sludge regulation (40 CFR Part 503). | Applies to the final use or disposal of sewage sludge and domestic septage. | high |
| #Q011 | administrative | unknown | mandatory | Large Capacity Septic System Compliance | wastewater | Large capacity septic systems are regulated under EPA’s Safe Drinking Water Act Underground Injection Well program. | Applies to large capacity septic systems as defined by the EPA. | high |
| #Q012 | administrative | unknown | mandatory | Surface Water Discharge Permitting | wastewater | Systems discharging to surface waters are regulated under EPA’s Clean Water Act National Pollutant Discharge Elimination System program. | Applies to septic or decentralized systems that discharge directly into surface waters. | high |
| #Q013 | corrective_action | operational | mandatory | Abandoned Septic System Removal | wastewater | A property owner may be required to properly remove the abandoned septic tank or drainfield, depending on your state or county rules and regulations. | Applies when a septic system is abandoned and no longer in use, subject to local/state law. | high |
| #Q014 | reporting | health | guidance | Reporting Environmental Violations | wastewater | If you have witnessed or are aware of an environmental violation, you can file a complaint with your state or local health department. It is imperative to contact your state or local health department as soon as possible to avoid public and/or environmental health risks. | Witnessing or awareness of an environmental violation related to septic system neglect | high |
| #Q015 | administrative | operational | guidance | Consultation for Abandoned Septic Systems | wastewater | Contact your local permitting authority (i.e., local health or environmental department) about regulations regarding when and how to properly handle an abandoned septic system in your area. | Property contains an abandoned septic system no longer in use | high |