CEDEN 2.0 Data Submission

What is CEDEN 2.0

• A new data submission portal for CEDEN.
• The first data type to transition to the new data system is Chemistry (Water Quality) data.
  • Other data types will transition in the next few years.

Goals of CEDEN 2.0

• User friendly interface
• Improved understanding of data quality
• Modern, secure data system that can be continually updated

CEDEN 2.0 Launch

• Launch date for public use: August 17, 2026

CEDEN 2.0 Resources

• CEDEN 2.0 Chemistry Data Submission Guidance (PDF) (7/22/26)
• CEDEN 2.0 Chemistry Data Submission Template (Excel) (1/16/26)
• CEDEN 2.0 Key Data Reporting Changes (PDF) (7/22/26)
• CEDEN 2.0 Vocabulary Lists as of 7/16/26 (Excel)
  • These vocabulary lists are intended to help data submitters prepare their systems for updated vocabulary used in CEDEN 2.0. Database vocabulary lists are not static and some vocabulary is still being added to the system prior to the public launch (particularly constituents). Once the system is live, current vocabulary will be available within the CEDEN 2.0 Portal.

For regular updates on CEDEN 2.0 development, join the CEDEN User Group.