Central Data Exchange

Recent Announcements

Announcements for: 12/7/2005 - 6/7/2006

Friday, May 26, 2006:

May 26, 2006 - Long Term 2 Enhanced Surface Water Treatment Rule (LT2) program will be available to CDX users.

Friday, May 12, 2006:

May 12, 2006 - CDX Inbox enhancement is scheduled to allow easier management of Inbox messages for all registered CDX users. While the current list, select, and download attachment features for unzipped files will continue to be available, CDX will now allow sorting Inbox messages by clicking headers, including open status, and support the selection and download of up to 20 inbox messages and attachments at one time sent to a zip file on your desktop.

Friday, April 21, 2006:

April 21, 2006 09:00 PM to April 22, 2006 12:00PM - Database Maintenance: CDX will be unavailable to all users, including the Exchange Network.

Thursday, February 23, 2006:

February 23, 2006 - CDX is announcing the ability to UPGRADE current Central Data Exchange (CDX) accounts used by public water systems, States and EPA to access the Safe Drinking Water Accession and Review System (SDWARS) during the Unregulated Contaminant Monitoring Regulation 1 (UCMR1 2001-2005). This upgrade will allow users to transfer their accounts and related information from SDWARS1 to SDWARS2. These users must participate in this "PRE-REGISTRATION" process in order to use their current CDX account for UCMR2.

Friday, December 9, 2005:

SDWARDS/UCMR: The Safe Drinking Water Accession & Review System (SDWARS) Database will Officially close on December 9, 2005. This will end the data collection for Unregulated Contaminants for this round of monitoring. If you have not yet submitted your monitoring requirements, please do so before the closing date. There will be no user access after this date. If you have any questions, please contact the Helpdesk at, 888-890-1995.