| #D001 | | SWPA | source water protection area | high |
| #D002 | | DWMAPS | Drinking Water Mapping Application to Protect Source Waters | high |
| #D003 | | SDWIS | Safe Drinking Water Information System | high |
| #D004 | | NPDES | National Pollution Discharge Elimination System | high |
| #D005 | | TRI | Toxic Release Inventory | high |
| #D006 | | ECHO | Enforcement and Compliance Online | high |
| #D007 | | RCRAInfo | Resource Conservation and Recovery Act Information | high |
| #D008 | | SWP | Source Water Protection | high |
| #D009 | | source water protection area | shows the area to be assessed and protected based on where the public water system draws drinking water supplies | medium |
| #D010 | | contaminant source inventory | lists all documented and potential contaminant sources or activities of concern within the SWPA that may pose a threat to drinking water supplies | high |
| #D011 | | action plan | outlining strategies and resources required for the long-term management of the source to prevent contamination | high |
| #D012 | | NOI | Notice of Intent | high |
| #D013 | | NOT | Notice of Termination | high |
| #D014 | | LEW | Low Erosivity Waiver | high |
| #D015 | | CGP | Construction General Permit | high |
| #D016 | | CGP-NeT | electronic CGP submission system, the NPDES eReporting Tool | high |
| #D017 | | NPDES | National Pollutant Discharge Elimination System | high |
| #D018 | | .gov | A .gov website belongs to an official government organization in the United States. | high |
| #D019 | | HTTPS | A lock (Lock A locked padlock) or https:// means you’ve safely connected to the .gov website. | high |