Surface Water - Chemistry Results - CEDEN Augmentation
This dataset includes field and lab chemistry data that has been submitted to the [California Environmental Data Exchange Network](https://ceden.waterboards.ca.gov) (CEDEN), but has not been loaded into the CEDEN database. It is a subset of the chemistry data that has been submitted to CEDEN since approximately December 2020, and supplements the data found in the main [Surface Water - Chemistry Results](https://data.ca.gov/dataset/surface-water-chemistry-results) dataset. Note that the data in this dataset is now included in the [CEDEN Query Tool](https://ceden.waterboards.ca.gov/CQT/Home/AqtTool). For consistency, many of the conditions applied to the other CEDEN data found on this portal are also applied to this supplemental dataset (e.g., no rejected data or replicates are included). However, this supplemental data is provisional and may not reflect all of the QA/QC controls applied to the regular CEDEN data. This dataset also contains two provisionally assigned values (“DataQuality” and “DataQualityIndicator”) to help users interpret the data quality metadata provided with the associated result (like the main [Surface Water - Chemistry Results](https://data.ca.gov/dataset/surface-water-chemistry-results) dataset referenced above).
Data files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
CEDEN Augmentation - Field & Lab Chemistry Data This dataset includes field and lab chemistry data that has been submitted to the [California Environmental Data Exchange Network](https://ceden.waterboards.ca.gov) (CEDEN), but has not been loaded into the CEDEN database. It is a subset of the chemistry data that has been submitted to CEDEN since approximately December 2020, and supplements the data found in the main [Surface Water - Chemistry Results](https://data.ca.gov/dataset/surface-water-chemistry-results) dataset. Note that the data in this dataset is now included in the [CEDEN Query Tool](https://ceden.waterboards.ca.gov/CQT/Home/AqtTool). For consistency, many of the conditions applied to the other CEDEN data found on this portal are also applied to this supplemental dataset (e.g., no rejected data or replicates are included). However, this supplemental data is provisional and may not reflect all of the QA/QC controls applied to the regular CEDEN data. This dataset also contains two provisionally assigned values (“DataQuality” and “DataQualityIndicator”) to help users interpret the data quality metadata provided with the associated result (like the main [Surface Water - Chemistry Results](https://data.ca.gov/dataset/surface-water-chemistry-results) dataset referenced above). | Download | CSV 1.33 GB | 12/23/21 |
Supporting files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
CEDEN Chemistry Data Dictionary Data dictionary for the CEDEN chemistry data. | PDF 90.43 KB | 02/25/25 |