| #Q001 | treatment | treatment | guidance | Municipal Treatment Technologies Guidance | drinking water | The best available technologies for removing tetrachloroethylene from drinking water are packed tower aeration and granular activated carbon. | At the municipal level | medium |
| #Q002 | operational | operational | guidance | Municipal Operational Expectation | drinking water | Taking into consideration currently available technologies, municipal treatment plants are expected to be able to consistently achieve concentrations below the MAC. | Municipal treatment plants | low |
| #Q003 | treatment | health | recommended | Residential Point-of-Entry System Preference | drinking water | From a health perspective, point-of-entry systems are preferred for the removal of VOCs, because they provide treated water for bathing and laundry as well as for cooking and drinking. This will decrease the potential for VOC exposure through inhalation. | At the residential scale, when using certified treatment devices to remove volatile organic chemicals (VOCs) such as tetrachloroethylene | medium |