| #P001 | chemical | reporting | guidance | Benzene (EPA Method 502.2 Revision 2.1 MDL) | drinking water | requirement | 0.01 µg/L | Method detection limit (MDL) for EPA Method 502.2 Revision 2.1, which employs purge and trap capillary gas chromatography with photoionization detectors and electrolytic conductivity detectors in series | | high |
| #P002 | chemical | reporting | guidance | Benzene (EPA Method 524.2 Revision 4.1 MDL range) | drinking water | requirement | 0.03-0.04 µg/L | Method detection limit (MDL) range for EPA Method 524.2 Revision 4.1 | | high |
| #P003 | chemical | reporting | guidance | Benzene (U.S. EPA practical quantitation limit) | drinking water | requirement | 5 µg/L | Current U.S. EPA practical quantitation limit (PQL) for benzene | | high |
| #P004 | chemical | reporting | guidance | Benzene (Estimated lower possible PQL) | drinking water | requirement | 0.4 µg/L | Estimated lower possible PQL for benzene by U.S. EPA | | high |
| #P005 | chemical | reporting | guidance | Benzene (SM 6200B MDL) | drinking water | requirement | 0.036 µg/L | Method detection limit for SM 6200B | | high |
| #P006 | chemical | reporting | guidance | Benzene (SM 6200C MDL) | drinking water | requirement | 0.017 µg/L | Method detection limit for SM 6200C | | high |
| #P007 | chemical | reporting | guidance | Benzene (SM 6200B Minimum quantitation level) | drinking water | requirement | 0.144 µg/L | Minimum quantitation level for method SM 6200B | | high |
| #P008 | chemical | reporting | guidance | Benzene (SM 6200C Minimum quantitation level) | drinking water | requirement | 0.068 µg/L | Minimum quantitation level for method SM 6200C | | high |