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Title	Drinking Water Well Monitoring
Lead	California State Water Resources Control Board [SWRCB]
Description	On 7 February 2018 the State Water Board revised the Waste Discharge Requirements (Order) for the Eastern San Joaquin River Watershed. The revised Order includes a new drinking water well monitoring requirement. Beginning 1 January 2019, East San Joaquin Water Quality Coalition (ESJWQC) members must monitor drinking water wells on enrolled parcels for nitrates. High levels of nitrates found in drinking water wells impact public health. Excess nitrates (NO3) in soil are often found in rural and agricultural areas. The most common sources of nitrate are fertilizer, livestock waste, and septic systems. Nitrates in soil are highly mobile and can be easily transported to groundwater. The purpose of Drinking Water Well Monitoring is to identify drinking water wells that have nitrate concentrations exceeding the drinking water standard and notify any well users of the potential health risks.
Science topics	Agriculture, Groundwater, Nitrogen / ammonia, Other discharge contaminants
Updated	April 29, 2022

Title	Groundwater Monitoring
Lead	U.S. Bureau of Reclamation [USBR]
Description	The SJRRP has installed 211 groundwater monitoring wells with 48 locations measuring groundwater temperature. Most monitoring wells are manually measured weekly and results from fourteen key monitoring wells are available online. Groundwater levels in many of these wells will be measured electronically at a high frequency (hourly) and manual measurements will be made periodically to assure the quality of data recorded by the instruments. Generally weekly/monthly manual groundwater level measurements will be made, with more frequent weekly measurements made in priority wells. Several key wells will be telemetered, transmitted real-time to a central database, and posted on CDEC, with links from the SJRRP website (restoresjr.net).
Science topics	Water storage, Water conveyance / infrastructure, Levees, Groundwater, Water temperature, Conductivity, Water use / demand
Updated	April 29, 2022

Title	Groundwater Quality Trends Monitoring
Lead	U.S. Geological Survey [USGS]
Description	Scientists are characterizing groundwater quality in principal aquifers, the primary source of the Nation's groundwater used for drinking. Concentrations of inorganic constituents, such as arsenic and nitrate, and organic constituents, such as pesticides and volatile organic compounds, are compared to benchmarks established for the protection of human health. Users can access an online tool to see how concentrations of pesticides, nutrients, metals, and organic contaminants in groundwater are changing during decadal periods across the Nation, and see in real time how chemical properties of groundwater at some sites are fluctuating. Groundwater quality data were collected from 5,000 wells between 1988-2001 (first sampling event) by the U.S. Geological Survey's National Water-Quality Assessment Project. Samples are collected in groups of 20-30 wells with similar characteristics called networks. About 1,500 of these wells in 67 networks were sampled about 10 years later between 2002-2012 (second sampling event) to evaluate decadal changes in groundwater quality. Between 2012 and 2016 (third sampling event), a subset of these networks has been sampled again, allowing additional results to be displayed on the web page: Decadal changes in groundwater quality. This is the third iteration of data added to the website, so this data release is referred to herein as Version 3.0. With the additional data, it is possible to evaluate changes in water quality between the 2nd and 3rd sampling event for 19 additional networks (35 total), changes in water quality between the 1st and 3rd sampling event for 15 additional networks (27 total), and changes across all 3 sampling events for 13 additional networks (27 total). A total of 78 networks have been sampled at least twice. Samples were obtained from monitoring wells, domestic-supply wells, and some public-supply wells before any treatment on the system.
Science topics	Groundwater, Nitrogen / ammonia, Salinity, Arsenic, Other discharge contaminants
Updated	April 29, 2022

Title	SJCDWQC Groundwater Quality Trend Monitoring
Lead	San Joaquin County and Delta Water Quality Coalition [SJCDWQC]
Description	The San Joaquin County & Delta Water Quality Coalition was established to help irrigated agriculture meet the requirements of the California Regional Water Quality Control Board's (RWQCB) Irrigated Lands Regulatory Program (ILRP) in San Joaquin County, Calaveras County and Contra Costa County. The Coalitions is operated and governed by the San Joaquin County Resource Conservation District. Under the ILRP that was originally adopted in July of 2003, farmers and ranchers that irrigate their land and have runoff from that irrigation or rainfall must belong to a coalition or apply for an individual discharge permit from the Regional Board directly.
Science topics	Agriculture, Conductivity, Constituent of emerging concern CEC, Dissolved oxygen, Groundwater, Nitrogen / ammonia, Non-forested vegetation, Other discharge contaminants, pH, Stormwater runoff / drainage, Turbidity, Wastewater discharge, Water temperature
Updated	November 14, 2024

Title	Nitrogen Monitoring [Self-Reporting]
Lead	Westside San Joaquin River Watershed Coalition
Description	Beginning in April 2016, members in a high vulnerability groundwater area, for which nitrate is identified as a constituent of concern, must prepare and implement a certified Nitrogen Management Plan (NMP).
Science topics	Wastewater discharge, Agriculture, Surface water / flow, Groundwater, Nitrogen / ammonia, Non-forested vegetation, Stormwater runoff / drainage
Updated	April 29, 2022

Title	National Wetland Condition Assessment [NWCA]
Lead	U.S. Environmental Protection Agency [USEPA]
Description	The National Wetland Condition Assessment (NWCA) is a statistical survey that begins to address some of the gaps in our understanding of wetland health by providing information on the ecological condition of the nationâ€™s wetlands and stressors most commonly associated with poor condition. The NWCA is designed to answer basic questions about the extent to which our nationâ€™s wetlands support healthy ecological conditions and the prevalence of key stressors at the national and regional scale. It is intended to complement and build upon the achievements of the U.S. Fish and Wildlife Service Wetland Status and Trends Program, which characterizes changes in wetland acreage across the conterminous United States. Paired together, these two efforts provide government agencies, wetland scientists, and the public with comparable, scientifically-defensible information documenting the current status and, ultimately, trends in both wetland quantity (i.e., area) and quality (i.e., ecological condition).
Science topics	Fishing, Surface water / flow, Groundwater, Tides, Flood, Drought, Nitrogen / ammonia, Phosphorous, Chlorophyll A / B, Harmful algal blooms HAB, Phytoplankton, Other zooplankton, Suspended sediment, Chemistry, Toxicity, Salinity, Dissolved oxygen, pH, Turbidity, Hg and methyl mercury, Other discharge contaminants, Mudflats, Intertidal / transition zones, Above-highwater refugia, Submerged aquatic vegetation, Floating aquatic vegetation, Seasonally flooded, Open water, Managed ponds, Riparian wildlife, Forests, Pelagic fish, Benthos, Insects, Mollusks, Crustaceans, Conductivity, Saltwater / freshwater marshes, Habitat, Other species, Fish, Invertebrates, Fecal coliform / E. coli
Updated	April 29, 2022

Title	California Rice Commission [CA Rice] Groundwater Monitoring
Lead	California Rice Commission
Description	In 1997, 28 rice wells were installed by the USGS. Since then, several of the wells have been destroyed or replaced and new wells have been installed to complement the original wells. Currently, 24 wells are active and used for water level monitoring and groundwater quality sampling. After two full network sampling events, the USGS used five network wells for trend monitoring as part of the USGS National Water Quality Assessment (NAWQA) Cycle II groundwater monitoring activities (from 2004 to 2014). Under the current monitoring program, now in Cycle III (2014 to 2024), water level monitoring is conducted bi-annually. In 2017, water quality monitoring will include the full network of active wells
Science topics	Agriculture, Groundwater, Nitrogen / ammonia, Suspended sediment, Salinity, Water temperature, Dissolved oxygen, pH, Seasonally flooded, Non-forested vegetation, Conductivity
Updated	April 29, 2022

Title	Landsat Science Program
Lead	Goddard Space Flight Center
Description	Multispectral earth imaging satellite acquires data for earth observation. Numerous applications and extensive history of success with environmental and land use programs.
Science topics	Levees, Dredging, Forest harvesting, Agriculture, Urban development, Roads and bridges, Rail lines, Docks and ports, Surface water / flow, Groundwater, Stage, Direction, Tides, Residence time, Waves, Flood, Drought, Wildfire, Harmful algal blooms HAB, Phytoplankton, Suspended sediment, Turbidity, Mudflats, Intertidal / transition zones, Above-highwater refugia, Main channels, Sloughs, Backwater, Submerged aquatic vegetation, Floating aquatic vegetation, Seasonally flooded, Open water, Managed ponds, Riparian wildlife, Forests, Non-forested vegetation, Delta islands, Pacific flyway, Saltwater / freshwater marshes, Habitat, Energy and mines, Snowpack / snow water equivalent SWE
Updated	April 29, 2022

Title	Sentinel Satellite
Lead	European Space Agency
Description	Earth observation using multispectral imagery from satellites. Especially suitable for monitoring changes in land cover.
Science topics	Levees, Dredging, Forest harvesting, Agriculture, Urban development, Recreation & tourism, Surface water / flow, Groundwater, Stage, Velocity, Direction, Tides, Residence time, Waves, Flood, Drought, Land elevation, Subsidence, Sea level rise, Seismicity, Wildfire, Air temperature, Precipitation, Wind, Extreme heat, Extreme storms, Suspended sediment, Water temperature, Mudflats, Intertidal / transition zones, Above-highwater refugia, Main channels, Sloughs, Backwater, Submerged aquatic vegetation, Floating aquatic vegetation, Seasonally flooded, Open water, Managed ponds, Riparian wildlife, Forests, Non-forested vegetation, Delta islands, Pacific flyway, Saltwater / freshwater marshes, Habitat, Energy and mines, Snowpack / snow water equivalent SWE, Water intakes, fish screens & passage
Updated	April 29, 2022

Title	Sacramento River Water Quality Monitoring
Lead	Woodland-Davis Clean Water Agency
Description	The Woodland-Davis Clean Water Agency (WDCWA)â€”a cooperative partnership between the City of Davis and the City of Woodlandâ€”was formed to implement the Davis-Woodland Water Supply Project (DWWSP) and construct a new surface water treatment plant to treat water from the Sacramento River which, once complete, will largely replace the Citiesâ€™ current groundwater supply. In October 2013, CH2M-Hill was selected as the Design-Build-Operate (DBO) Company for this project. In anticipation of this new surface water treatment facility, the WDCWA began an extensive source water monitoring program in August 2009. The purpose of this monitoring program was to characterize the quality of Sacramento River water at the DWWSP intake, to assist in the selection of an effective treatment process train, and to provide the required raw water data necessary for obtaining a Domestic Water Supply Permit from the State Water Resources Control Boardâ€™s Drinking Water Program (DWP;formerly under the California Department of Public Health (CDPH)). After fulfilling the initial one-year monitoring program agreed to by CDPH, a scaled down sampling program was initiated to better understand seasonal trends in water quality, and to fill the time gap between the initial 2009-2010 monitoring efforts and startup of the new Regional Water Treatment Facility (RWTF).
Science topics	Surface water / flow, Groundwater, Nitrogen / ammonia, Phosphorous, Salinity, Dissolved oxygen, pH, Turbidity, Hg and methyl mercury, Polychlorinated biphenyl PCB, Lead, Cadmium, Copper, Zinc, Arsenic, Selenium, Insecticides, Rodenticides, Herbicides, Fungicides, Other discharge contaminants, Conductivity, Water use / demand, Fecal coliform / E. coli
Updated	April 29, 2022

Title	Groundwater Ambient Monitoring and Assessment Program [GAMA]
Lead	U.S. Geological Survey [USGS]
Description	The Groundwater Ambient Monitoring and Assessment (GAMA) Program is California's comprehensive groundwater quality monitoring program that was created by the State Water Resources Control Board (State Water Board) in 2000. It was later expanded by Assembly Bill 599 - the Groundwater Quality Monitoring Act of 2001. AB 599 required the State Water Board, in coordination with an Interagency Task Force (ITF) and Public Advisory Committee (PAC) to integrate existing monitoring programs and design new program elements as necessary, resulting in a publicly accepted plan to monitor and assess groundwater quality in basins that account for 95% of the state's groundwater use. The GAMA Program is based on interagency collaboration with the State and Regional Water Boards, Department of Water Resources, Department of Pesticide Regulations, U.S. Geological Survey, and Lawrence Livermore National Laboratory, and cooperation with local water agencies and well owners.
Science topics	Groundwater, Salinity, Hg and methyl mercury, Hydrocarbons / polycyclic aromatic hydrocarbons PAH, Flame retardants, Endocrine disruptors, Lead, Arsenic, Selenium, Constituent of emerging concern CEC, Nitrogen / ammonia, Other discharge contaminants, Conductivity, Habitat, Fecal coliform / E. coli
Updated	April 29, 2022

Title	Periodic Groundwater Level Measurements
Lead	California Department of Water Resource [DWR]
Description	Since 2009, the California Statewide Groundwater Elevation Monitoring (CASGEM) Program has tracked seasonal and long-term groundwater elevation trends in groundwater basins statewide. The program's mission is to establish a permanent, locally-managed program of regular and systematic monitoring in all of California's alluvial groundwater basins. This early attempt to monitor groundwater continues to exist as a tool to help achieve the goals set out under the Sustainable Groundwater Management Act (SGMA). Senate Bill x7-6, passed by the legislature in 2009, established collaboration between local monitoring parties and DWR to collect statewide groundwater elevations, to be made available to the public. In response to the law, we developed the CASGEM program. Collecting and evaluating these groundwater data on a statewide scale is a fundamental step toward improving management of California's groundwater resources. The CASGEM program relies and builds upon the many previously established local long-term groundwater monitoring and management programs. Our role is to coordinate the CASGEM program, to work cooperatively with local entities, and to maintain the collected elevation data in a readily and widely available public database.
Science topics	Groundwater, Flood
Updated	April 29, 2022

Title	Surface Water Protection Program
Lead	California Department of Pesticide Regulation [DPR]
Description	CA Department of Pesticide Regulation is the lead agency for regulating the registration, sales and use of pesticides in California. It is required by law to protect the environment, including surface waters, from environmentally harmful pesticides by prohibiting, regulating, or controlling the uses of such pesticides. The Surface Water Protection Program addresses both agricultural and nonagricultural sources of pesticide residues in surface waters. It has preventive and response components that reduce the presence of pesticides in surface waters. The preventive component includes local outreach to promote management practices that reduce pesticide runoff. Prevention also relies on DPR's registration process in which potential adverse effects to surface water quality, particularly those in high-risk situations are evaluated. The response component includes mitigation options to meet water quality goals, recognizing the value of self-regulating efforts to reduce pesticides in surface water as well as regulatory authorities of DPR, the State Water Resources Control Board (SWRCB) and the Regional Water Quality Control Boards (RWQCB).
Science topics	Surface water / flow, Groundwater, Toxicity, Endocrine disruptors, Copper, Constituent of emerging concern CEC, Insecticides, Rodenticides, Herbicides, Fungicides, Main channels, Sloughs, Backwater, Non-forested vegetation, Habitat
Updated	April 29, 2022

Title	Well Completion Monitoring
Lead	California Department of Water Resource [DWR]
Description	California Water Code Section 13751 requires that anyone who constructs, alters, or destroys a water well, cathodic protection well, groundwater monitoring well, or geothermal heat exchange well must file with the Department of Water Resources a report of completion within 60 days of the completion of the work. Drillers submit their well completion reports with the Online System of Well Completion Reports (OSWCR). OSWCR users create an account based on their C-57 license that DWR will validate. Upon approval users will be able to submit Well Completion Reports.
Science topics	Water conveyance / infrastructure, Groundwater
Updated	April 29, 2022

Title	National Water Use Science Project [NWUSP]
Lead	U.S. Geological Survey [USGS]
Description	The USGS National Water Use Science Project (NWUSP), a component of the Water Availability and Use Science Program (WAUSP), facilitates the 5-year compilation of water use estimates for the United States as part of the National Water Census (NWC). The NWC, implemented as part of the SECURE (Science and Engineering to Comprehensively Understand and Responsibly Enhance) Water Act (Subtitle F of Public Law 111-11, the Omnibus Public Land Management Act), provides data and tools designed to support water managers in the accurate assessment of water availability at regional and national scales (https://water.usgs.gov/ watercensus/). Water managers across the United States require more complete, timely, and accurate water-availability information to support policy and decision-making, specifically, data associated with water withdrawals and consumptive use. Recognizing the limitations of current water-use data, the SECURE Water Act authorized a program that supports activities related to data collection and methods research and development at the State level. The USGS Water-Use Data and Research program (WUDR) will provide financial assistance through cooperative agreements with State water resource agencies to improve the availability, quality, compatibility, and delivery of water-use data that is collected or estimated by States. The Act requires that these State water use and availability datasets be integrated with appropriate datasets that are developed and/or maintained by the USGS.
Science topics	Surface water / flow, Groundwater, Water use / demand
Updated	April 29, 2022

Title	Advanced Hydrologic Prediction Service - Precipitation Monitoring
Lead	National Oceanic and Atmospheric Administration [NOAA]
Description	"Observed" data is a byproduct of National Weather Service (NWS) operations at the 12 CONUS River Forecast Centers (RFCs), and is displayed as a gridded field with a spatial resolution of roughly 4x4 km. "Normal" precipitation is derived from PRISM climate data, created at Oregon State University. The PRISM gridded climate maps are considered the most detailed, highest-quality spatial climate datasets currently available. The 30 year PRISM normal from 1981-2010 is used for precipitation analysis since 2004. Prior to 2004 the 30 year PRISM normal from 1961-1990 is used.
Science topics	Surface water / flow, Groundwater, Precipitation, Stormwater runoff / drainage
Updated	April 29, 2022

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