AWWA JAW66128

All Safe Drinking Water Act regulations require state implementation and state interpretation of the rule language. The final Ground Water Rule (GWR) relies on states to discern decision criteria essential to rule elements. Currently, no states have primacy for the GWR, and less than two years remain for systems to prepare for the initial federal compliance deadline. Drinking water utilities seeking to comply with the triggered monitoring provisions of the GWR must be involved in the process to determine whether treatment is a preferred compliance strategy or to discern what preparations are necessary in anticipation of the first round of sanitary surveys, where the authority provided by the GWR is in effect. The authors identify the most critical elements of the GWR for investigation by individual utilities. Includes 16 references, tables.