How will SDWARS/UCMR be populated with inventory data?
The inventory data in SDWIS will be used to initially populate SDWARS/UCMR. After this initial population, the PWS will need to update the inventory in SDWARS/UCMR so that it is current for unregulated contaminant monitoring. Since they are two separate systems, updating SDWARS/UCMR will have no effect whatsoever on inventory data in SDWIS.