| #Q001 | administrative | operational | recommended | Obtain implementation guidance | drinking water | Note: Specific guidance related to the implementation of drinking water guidelines should be obtained from the appropriate drinking water authority in the affected jurisdiction. | | high |
| #Q002 | monitoring | operational | guidance | Routine monitoring exemption | drinking water | As levels of 1,2-DCA in treated water are generally very low, water suppliers are not expected to monitor the concentrations of 1,2-DCA in drinking water supplies on a routine basis. | | high |
| #Q003 | monitoring | health | recommended | Groundwater source characterization | drinking water | Groundwater sources should be characterized to determine if 1,2-DCA is present, especially if the land use history is unknown. | especially if the land use history is unknown | high |
| #Q004 | monitoring | health | recommended | Quarterly monitoring for impacted groundwater | drinking water | Quarterly monitoring for 1,2-DCA is recommended for groundwater sources that are or may have been impacted by spills or other potential contamination with this compound. | for groundwater sources that are or may have been impacted by spills or other potential contamination with this compound | high |
| #Q005 | corrective_action | health | recommended | Plan for short-term exceedances | drinking water | For drinking water supplies that occasionally experience short-term exceedances above the MAC, it is suggested that a plan be developed and implemented to address these situations. | For drinking water supplies that occasionally experience short-term exceedances above the MAC | high |
| #Q006 | corrective_action | health | recommended | Alternative sources for long-term exceedances | drinking water | For more significant long-term exceedances that cannot be addressed through treatment, it is suggested that alternative sources of drinking water be considered. | For more significant long-term exceedances that cannot be addressed through treatment | high |