Stormwater & Wastewater
19 datasetsStormwater permits, urban runoff, wastewater treatment, and recycled water.
Stormwater & Wastewater datasets
Showing 1–5 of 19 datasets
California State Water Resources Control Board
Water Quality - Effluent - Electronic Self-Monitoring Report (eSMR) DataWastewater discharges are regulated by the Water Board. Those regulated are generally required to submit Self-Monitoring Reports to the State or Regional Water Board. Some dischargers submit their reports through the electronic Self-Monitoring Report (eSMR) module of the California Integrated Water Quality System (CIWQS). Generally these are for discharges into surface waters regulated by an individual National Pollutant Discharge Elimination System (NPDES) permit, though other dischargers may be included in this dataset as well. This dataset are the monitoring results that have been submitted as data points after the submitters have been approved for electronic submittals (i.e. after the "all electronic date"). Note that this dataset does not include records where the sampling date falls outside of the years shown below. The excluded records include: records where the sampling date is missing, records where the sampling date is invalid (e.g., records with sampling dates in the future or unreasonably far in the past), and records for samples taken prior to year 2006. The excluded records represent approximately 0.1% of all records in the complete eSMR dataset.
California State Water Resources Control Board
Beach Advisories (Postings and Closures) and Beach Water Quality MonitoringOne of California's biggest industries is tourism, and beaches are a significant tourist attraction as well as being an integral part of California’s culture and economy. Beaches, or more precisely the ocean waters adjacent to the beach, must be safe for swimming and other recreational use. When certain bacteria are present in sufficient concentrations, they pose a health hazard for swimming. County health officers issue various types of warnings when certain kinds of bacteria are found in the water at levels that exceed standards set by the Department of Health Services (DHS). These indicator bacteria imply the potential presence of microscopic disease-causing organisms originating from human and animal wastes. Not only does beach contamination pose real health risks to beach goers, the negative publicity that comes with postings and closures undermines the tourism industry. In California there are four types of warnings about beach water conditions: postings, closures, rain advisories, and permanent postings. Postings are the most common type of warning. Postings are triggered when a water sample fails to meet the DHS’ Ocean Water-Contact Sports Standard (California Health and Safety Code Sections 115875-115915). A beach posting is a warning to the public that the bacteria levels in the beach water may cause illness, and local health officers are recommending to the public to stay out of the water in areas where the signs are visible. The most common cause of postings is the dry weather discharge of urban runoff from storm drain systems. A beach closure is a notice to the public that there has been a sewage discharge that is affecting the beach area. Closures are put in place immediately after a sewage spill is reported that may affect the beach. The closed beach area will be reopened when water samples meet standards. Because closures represent a definite health risk and postings indicate a potential risk, they are tracked separately. Rain advisories are pre-emptive warnings that people should avoid swimming in ocean waters during a rain event and for three days after rainfall ceases. Rainwater often carries large amounts of bacteria from a variety of sources to the ocean. Rain advisories are issued via county hotlines, newspapers, and radio. Permanent postings are sites where urban runoff discharges to the beach even during the dry season, and historic data shows that the beach water near the discharge point generally contains elevated bacteria levels. The Water Board displays the closure and posting data submitted from the County Health Officers on its web site monthly. The Water Board also compiles the information into an annual report. These reports, available on the Water Board’s web site at https://www.waterboards.ca.gov/water_issues/programs/beaches/beach_surveys/, provide additional data on sources of pollution, testing methods, and causes of beach posting and closures. Data visualizations are also available on California's Water Quality Monitoring Council Safe to Swim site here https://mywaterquality.ca.gov/safe-to-swim/safe-to-swim-maps.html .
California State Water Resources Control Board
2019 California Water Quality Status ReportThe California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report is organized around the watershed from land to sea. Each theme-specific story includes a brief background, a data analysis summary, an overview of management actions, and access to the raw data.
View the 2019 California Water Quality Status Report.
- Data for Fig. 2 1,2,3,-Trichloropropane is provided as a download below. The data can also be downloaded from the State Water Resources Control Board (SWRCB) website.
- Data for Fig. 6 Statewide Water Bodies Toxicity can be downloaded from the California Open Data Portal.
- Sediment load data for Fig. 7 Elk River is provided as a download below. Landslide susceptibility data is available on the California Geological Survey GIS server.
- Data for Fig. 8 Central Valley Water Board E. coli Monitoring Results can be downloaded from Google Sheets.
- Data for Fig. 9 Harmful Algal Bloom Incident Reports Map can be downloaded from the California Open Data Portal.
- Data for Fig. 19 Industrial Stormwater Assessment Tool can be downloaded from the California Open Data Portal (Monitoring Data, Facility Information), Office of Environmental Health Hazard Assessment CalEnviroScreen 3.0 webpage, and the SWRCB 2012 Integrated Report webpage.
- Data for Fig. 20 is provided as a download below and is also available on the Stream Quality Index dashboard. Download the file from the dashboard for the most current data.
California State Water Resources Control Board
Surface Water - Water Quality Regulatory InformationThis data set lists active and historical enforcement actions records that are stored in the [California Integrated Water Quality System](https://www.waterboards.ca.gov/ciwqs) (CIWQS). Enforcement actions are generally issued in response to one or more instances of non-compliance (violations) of a base regulatory measure. Enforcement actions can be monetary or non-monetary.
California State Water Resources Control Board
Urban Water Use Objectives – Relevant DataThe Making Conservation a California Way of Life regulation requires urban retail water suppliers (URWS) to annually calculate their Urban Water Use Objective (UWUO), which is the sum of efficiency budgets for a subset of urban water uses: residential indoor water use, residential outdoor water use, real water loss and commercial, industrial and institutional landscapes with dedicated irrigation meters. Each efficiency budget will be calculated using a statewide efficiency standard and local service area characteristics such as population, climate, and landscape area. Where relevant, suppliers may also include in their objective “variances” for unique uses, or a bonus incentive for potable recycled water use. This dataset contains information gathered from reports submitted to the State Water Board, the Department of Water Resources, and other relevant information sources. It also contains information derived by the Board and the Department for the purpose of the regulation. The values in these tables are used to pre-fill a number of fields within the UWUO reporting form that URWS are required to submit by January 1 of each year, starting in 2025. To view the submitted values, please visit [this page](https://data.ca.gov/dataset/urban-water-use-objectives-compiled-report-data).