Excel · dataset · 2026
Interagency Ecological Program: Discrete water quality monitoring in the Sacramento-San Joaquin Bay-Delta, collected by the Environmental Monitoring Program, 1975-2025
Listed in California Open Data
The Interagency Ecological Program’s (IEP) Environmental Monitoring Program (EMP) was initiated in compliance with the Water Right Decision D-1379 (now mandated by Water Right Decision D-1641) and has monitored discrete water quality and nutrients in the upper San Francisco Estuary since 1975.
Description
The objectives of the EMP are to obtain consistent and accurate monthly data at established monitoring stations, provide and document information necessary to achieve compliance with salinity, flow, and dissolved oxygen standards, and to report this information for the purpose of management and conservation of the upper San Francisco Estuary.
While the EMP also collects biological data, this dataset only includes the discrete water quality and nutrient data collected by the EMP from 1975-2025. Links to other EMP datasets can be found emp-dwr.github.io/emp-website/qmd-files/website/general/data-links.html ## About This Federated Record This CNRA Open Data Platform record is based on metadata federated from the Environmental Data Initiative (EDI) Data Portal.
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Its purpose is to improve the discoverability of the data package through the CNRA Open Data Platform. The EDI Data Portal is the repository of record for this data package. Metadata, resource links, and supporting information displayed here may not reflect the latest updates available in EDI.
Resources shown here—including Full Metadata, Provenance, and Data Quality Report—are provided to help users understand and evaluate the data package and the supporting information available from EDI. For the current data package, citation, DOI, data files, metadata, provenance, data quality documentation, revision history, and other supporting information, refer to the EDI data package landing page: portal.edirepository.org/nis/metadataviewer?packageid=edi.458.15&key=vqSpNwnbe91Bi8trB5RY25CoPD4 Access requirements, permissions, and authorization policies for resources hosted by EDI are established and managed independently of the CNRA Open Data Platform.
Links
Get the data
- Publisher page portal.edirepository.org/nis/metadataviewer?packageid=edi.458.15&key=vqSpNwnbe91Bi8trB5… ↗
documentation · download · from data ca gov
- EMP_DWQ_1975-2025 pasta.lternet.edu/package/data/eml/edi/458/15/57829b38a1ef3287bb25b1c62d17cf41 ↗
download · from data ca gov
- EMP_DWQ_Stations_1975-2025 pasta.lternet.edu/package/data/eml/edi/458/15/b10681b624e05fc70a6d2b3f2643c9f5 ↗
download · from data ca gov
- EMP_DWQ_methods pasta.lternet.edu/package/data/eml/edi/458/15/3fed76c94d73d53e3861b8970e6880e3 ↗
download · from data ca gov
- Instrumentation_metadata pasta.lternet.edu/package/data/eml/edi/458/15/7c58aaec65ccf6f404634fa5be8344c0 ↗
download · from data ca gov
- Categorical_codes pasta.lternet.edu/package/data/eml/edi/458/15/ab2f794b710f7b32b6acdb526ddb65e6 ↗
download · from data ca gov
- Provenance Metadata portal.edirepository.org/nis/provenanceGenerator?packageid=edi.458.15&key=vqSpNwnbe91Bi… ↗
download · from data ca gov
- Dataset Quality Report portal.edirepository.org/nis/reportviewer?packageid=edi.458.15&key=vqSpNwnbe91Bi8trB5RY… ↗
download · from data ca gov
Where it is published
- California Open Data dataset page data.ca.gov/dataset/interagency-ecological-program-discrete-water-quality-… ↗
landing page · from data ca gov
Catalogue records · 1
- CKAN API data.ca.gov/api/3/action/package_show?id=21bbabe6-bbba-45ea-94fd-dbedc1de1… ↗
metadata API · from data ca gov
Topics
- Stated by source
- Natural Resources · Water
- From keywords
- Earth & Environmental Science · Life Sciences
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| California Open Data | 21bbabe6-bbba-45ea-94fd-dbedc1de17db | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[topic].ckan_group:data_ca_gov:natural-resources | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[topic].ckan_group:data_ca_gov:water | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| created_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| description | source · data ca gov | connector:data_ca_gov@1.0.0 | /notes |
| license_text | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| publication_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| title | source · data ca gov | connector:data_ca_gov@1.0.0 | /title |
| updated_date | source · data ca gov | connector:data_ca_gov@1.0.0 |