| #Q001 | prohibition | unknown | mandatory | Unpermitted Discharge Prohibition | wastewater, other | The CWA made it unlawful to discharge any pollutant from a point source into navigable waters, unless a permit was obtained: | unless a permit was obtained | high |
| #Q002 | administrative | operational | mandatory | Facility Discharge Permits | wastewater | Industrial, municipal, and other facilities must obtain permits if their discharges go directly to surface waters. | if their discharges go directly to surface waters | high |
| #Q003 | monitoring | reporting | mandatory | Drinking Water Contamination Tracking | drinking water | SDWIS tracks information on drinking water contamination levels as required by the 1974 Safe Drinking Water Act and its 1986 and 1996 amendments. | as required by the 1974 Safe Drinking Water Act and its 1986 and 1996 amendments | high |
| #Q004 | design | health | mandatory | Regulatory Framework Establishment | drinking water | The Safe Drinking Water Act (SDWA) and accompanying regulations establish Maximum Contaminant Levels (MCLs), treatment techniques, and monitoring and reporting requirements to ensure that water provided to customers is safe for human consumption. | | high |
| #Q005 | operational | unknown | guidance | Information Security Guidance | other | Share sensitive information only on official, secure websites. | When sharing sensitive information on .gov websites | high |
| #Q006 | administrative | reporting | mandatory | Mandatory Feedback Form Fields | other | A red asterisk (*) indicates a required field. | When submitting website feedback via the provided form | high |
| #Q007 | administrative | reporting | mandatory | NPDES Permitting for Combined Sewer Overflows | wastewater | These events, called combined sewer overflows, are subject to the National Pollutant Discharge Elimination System (NPDES) permitting program. | When runoff exceeds the capacity of a combined sewer system resulting in overflows | high |