| #D001 | | SDWIS | Safe Drinking Water Information System | high |
| #D002 | | SDWA | Safe Drinking Water Act | high |
| #D003 | | MCLs | Maximum Contaminant Levels | high |
| #D004 | | TRI | Toxic Release Inventory | high |
| #D005 | | FRS | Facility Registry Service | high |
| #D006 | | .gov | belongs to an official government organization in the United States | high |
| #D007 | | https:// | means you’ve safely connected to the .gov website | high |
| #D008 | | combined sewer system | collects rainwater runoff, domestic sewage, and industrial wastewater into one pipe | high |
| #D009 | | combined sewer overflows | untreated stormwater and wastewater flows into nearby waterbodies | high |
| #D010 | | CSO | combined sewer overflow | high |
| #D011 | | NPDES | National Pollutant Discharge Elimination System | high |
| #D012 | | lock | means you’ve safely connected to the .gov website | high |
| #D013 | | CGP | Construction General Permit | high |
| #D014 | | MSGP | Multi-Sector General Permit | high |
| #D015 | | TNRCC | Texas Commission on Environmental Quality | high |
| #D016 | | Administrator | Administrator of the Environmental Protection Agency | high |
| #D017 | | Consortium | Louisiana Universities Marine Consortium | high |
| #D018 | | shellfish | any species of oyster, clam, or mussel that is harvested for human consumption | high |