| #P001 | operational | reporting | guidance | Tetrachloroethylene - Method 502.2 Revision 2.1 Method Detection Limit (MDL) | drinking water | unknown | 0.02-0.05 μg/L | Method 502.2 Revision 2.1, which uses purge and trap capillary gas chromatography (GC) with photoionization detectors and electrolytic conductivity detectors in series | Analysis of tetrachloroethylene in drinking water using Method 502.2 Revision 2.1 | high |
| #P002 | operational | reporting | guidance | Tetrachloroethylene - Method 524.2 Revision 4.1 Method Detection Limit (MDL) | drinking water | unknown | 0.05-0.14 μg/L | Method 524.2 Revision 4.1, which uses purge and trap capillary GC with mass spectrometry (MS) detection | Analysis of tetrachloroethylene in drinking water using Method 524.2 Revision 4.1 | high |
| #P003 | operational | reporting | guidance | Tetrachloroethylene - Method 524.3 Version 1.0 detection limit | drinking water | unknown | 0.036 µg/L | Method 524.3 Version 1.0 measures VOCs in drinking water. The method uses the GC-MS technique and has a detection limit of 0.036 µg/L for tetrachloroethylene. | Analysis of tetrachloroethylene in drinking water using Method 524.3 Version 1.0 | high |
| #P004 | operational | reporting | guidance | Tetrachloroethylene - Method 551.1 Revision 1.0 MDL (MTBE solvent) | drinking water | unknown | 0.002 μg/L | Method 551.1 Revision 1.0, employing liquid-liquid extraction and GC with electron capture detectors, has MDLs of 0.002 μg/L and 0.008 μg/L when methyl tertiary-butyl ether (MTBE) or pentane is used as the extraction solvent, respectively | When methyl tertiary-butyl ether (MTBE) is used as the extraction solvent | high |
| #P005 | operational | reporting | guidance | Tetrachloroethylene - Method 551.1 Revision 1.0 MDL (pentane solvent) | drinking water | unknown | 0.008 μg/L | Method 551.1 Revision 1.0, employing liquid-liquid extraction and GC with electron capture detectors, has MDLs of 0.002 μg/L and 0.008 μg/L when methyl tertiary-butyl ether (MTBE) or pentane is used as the extraction solvent, respectively | When pentane is used as the extraction solvent | high |
| #P006 | operational | reporting | guidance | Tetrachloroethylene - Current U.S. EPA practical quantitation level (PQL) | drinking water | requirement | 5 μg/L | The current U.S. EPA practical quantitation level (PQL), based on the capability of laboratories to measure the concentration of tetrachloroethylene within reasonable limits of precision and accuracy, is 5 μg/L | | high |
| #P007 | operational | reporting | guidance | Tetrachloroethylene - SM 6200B Method Detection Limit (MDL) | drinking water | unknown | 0.047 μg/L | SM 6200B has an MDL of 0.047 μg/L | Analysis using Standard Method SM 6200B | high |
| #P008 | operational | reporting | guidance | Tetrachloroethylene - SM 6200B Minimum Quantitation Level | drinking water | requirement | 0.188 μg/L | The minimum quantitation levels, defined as the lowest level that can be quantified accurately using these methods, are 0.188 μg/L and 0.056 μg/L for methods SM 6200B and SM 6200C, respectively | | high |
| #P009 | operational | reporting | guidance | Tetrachloroethylene - SM 6200C Method Detection Limit (MDL) | drinking water | unknown | 0.013-0.014 μg/L | SM 6200C has an MDL range of 0.013-0.014 μg/L | Analysis using Standard Method SM 6200C | high |
| #P010 | operational | reporting | guidance | Tetrachloroethylene - SM 6200C Minimum Quantitation Level | drinking water | requirement | 0.056 μg/L | The minimum quantitation levels, defined as the lowest level that can be quantified accurately using these methods, are 0.188 μg/L and 0.056 μg/L for methods SM 6200B and SM 6200C, respectively | | high |
| #P011 | operational | reporting | guidance | Tetrachloroethylene - ASTM D5790 Method Detection Limit (MDL) | drinking water | unknown | 0.25 μg/L | ASTM International lists method D5790 for the analysis of tetrachloroethylene in drinking water. This method uses purge and trap capillary GC with MS detection (ASTM, 1999) and has an MDL of 0.25 μg/L | Analysis using ASTM D5790 | high |
| #P012 | operational | reporting | guidance | Tetrachloroethylene - Possible PQL range (U.S. EPA second 6-year review) | drinking water | requirement | 0.08-1.4 µg/L | Applying a multiplier of 10 to the upper levels of the MDL of the three approved analytical methods (502.2, 524.2 and 551.1) resulted in a possible PQL range of 0.08-1.4 µg/L | Derived from the U.S. EPA's second 6-year review to re-evaluate PQLs | high |
| #P013 | operational | reporting | guidance | Tetrachloroethylene - Lowered PQL Estimate (U.S. EPA second 6-year review) | drinking water | requirement | 0.5 µg/L | The U.S. EPA's review indicated that the PQL could be lowered to approximately 0.5 µg/L | Based on U.S. EPA's second 6-year review evaluation | high |