Environmental Monitoring Program: Discrete Water Quality 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. 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 1975-2021. Links to other EMP datasets can be found [here](https://emp-dwr.github.io/emp-website/qmd-files/website/general/data-links.html).
Data is also accessible via the [Environmental Data Initiative](https://portal.edirepository.org/nis/mapbrowse?scope=edi&identifier=458&revision=12).
Resources
4 resources available
-
EMP_DWQ_FlagCodes
CSV -
EMP_DWQ_1975-2023
CSV -
EMP_DWQ_Stations_1975-2023
CSV -
EMP_DWQ_metadata_methods
PDF
Find Related Datasets
Search by Tags
Click any tag below to search for similar datasets
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| contactPoint |
{
"fn": "Sarah Perry",
"@type": "vcard:Contact",
"hasEmail": "mailto:sarah.perry@water.ca.gov"
}
|
| description | 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. 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 1975-2021. Links to other EMP datasets can be found [here](https://emp-dwr.github.io/emp-website/qmd-files/website/general/data-links.html). Data is also accessible via the [Environmental Data Initiative](https://portal.edirepository.org/nis/mapbrowse?scope=edi&identifier=458&revision=12). |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "EMP_DWQ_FlagCodes",
"format": "CSV",
"mediaType": "text/csv",
"describedBy": "https://data.ca.gov/api/action/datastore_search?resource_id=0bbb5568-5ac5-499e-8b8c-c33efacd5398&limit=0",
"description": "A list of quality assurance codes corresponding to the “flags” column in the main data table.",
"downloadURL": "https://data.cnra.ca.gov/dataset/a22f4a74-a789-47bc-96db-8deb3eed3d78/resource/d6f5e555-073a-4e46-8b5b-d098569816e7/download/emp_dwq_flagcodes.csv",
"describedByType": "application/json"
},
{
"@type": "dcat:Distribution",
"title": "EMP_DWQ_1975-2023",
"format": "CSV",
"mediaType": "text/csv",
"describedBy": "https://data.ca.gov/api/action/datastore_search?resource_id=3978ddc7-548b-4c40-a9d0-9cb932593030&limit=0",
"description": "Discrete water quality data from the California Bay-Delta watershed.",
"downloadURL": "https://data.cnra.ca.gov/dataset/a22f4a74-a789-47bc-96db-8deb3eed3d78/resource/9e52e355-954c-4d81-b531-cd9ea255d72e/download/emp_dwq_1975_2023.csv",
"describedByType": "application/json"
},
{
"@type": "dcat:Distribution",
"title": "EMP_DWQ_Stations_1975-2023",
"format": "CSV",
"mediaType": "text/csv",
"describedBy": "https://data.ca.gov/api/action/datastore_search?resource_id=ac5825cb-e77b-4cb9-9e27-951d40f146bb&limit=0",
"description": "A list of stations in the San Francisco Bay-Delta Estuary sampled by the EMP during the years 1975-present.",
"downloadURL": "https://data.cnra.ca.gov/dataset/a22f4a74-a789-47bc-96db-8deb3eed3d78/resource/c9c488bb-47cd-471e-a36a-96b127dfef56/download/emp_dwq_stations_1975-2023.csv",
"describedByType": "application/json"
},
{
"@type": "dcat:Distribution",
"title": "EMP_DWQ_metadata_methods",
"format": "PDF",
"mediaType": "application/pdf",
"description": "Tables describing field and lab methods.",
"downloadURL": "https://data.cnra.ca.gov/dataset/a22f4a74-a789-47bc-96db-8deb3eed3d78/resource/62021a48-934d-4930-b046-302fcc295a69/download/emp_dwq_metadata_methods.pdf"
}
]
|
| identifier | 0001ba4c-d0e5-4541-a9af-dc03f9352323 |
| issued | 2024-02-05T21:01:03.220168 |
| keyword |
[
"Sacramento-San Joquin Delta",
"california department of water resources",
"monitoring",
"water quality"
]
|
| license | http://creativecommons.org/licenses/by-nc/2.0/ |
| modified | 2025-07-02T21:24:28.480353 |
| publisher |
{
"name": "California Department of Water Resources",
"@type": "org:Organization"
}
|
| theme |
[
"Natural Resources",
"Water"
]
|
| title | Environmental Monitoring Program: Discrete Water Quality Data |
