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Sustainable Groundwater Management Resources

Shared access to reliable information, data, and tools is essential for sustainable groundwater management. This resource database contains data, case studies, technical and investigative reports, software, and other information and tools produced and used by the USGS as well as related resources from local, state and federal agencies, educational institutions, and others. The resources in this database are regularly updated.





Found 156 resources.

A conceptual model of the groundwater regime and the hydrogeologic environment

Sustainability Indicator:  Groundwater Levels
Topic:  Hydrogeologic Conceptual Model
Type:  Journal Article
Agency:  Research Council of Alberta
Description:  

A National Framework for Ground-Water Monitoring in the United States (Fact Sheet)

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  USGS Fact Sheet / Circular
Agency:  U.S. Geological Survey
Description:  

A National Framework for Ground-Water Monitoring in the United States (Full Report)

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  

A water-resources data network evaluation for Monterey County, California; Phase 1; South county

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  

A water-resources data-network evaluation for Monterey County, California; Phase 3, Northern Salinas River drainage basin

Sustainability Indicator:  
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  

Advanced Methods for Modeling Water-Levels and Estimating Drawdowns with SeriesSEE, an Excel Add-In

Sustainability Indicator:  Groundwater Levels
Topic:  Hydrogeologic Conceptual Model
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Analysis of Aquifer Tests and Slug Tests (Software)

Sustainability Indicator:  
Topic:  Hydrogeologic Conceptual Model
Type:  Software
Agency:  U.S. Geological Survey
Description:  

AnalyzeHOLE

Sustainability Indicator:  
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  

Applied groundwater modeling

Sustainability Indicator:  Water Quality
Topic:  Hydrogeologic Conceptual Model
Type:  Book
Agency:  Other
Description:  Anderson, M.P., and Woessner, W.W., 1992, Applied groundwater modeling

Basin Characterization Model

Sustainability Indicator:  
Topic:  Water Budget
Type:  Data
Agency:  U.S. Geological Survey
Description:  

California Department of Transportation, Division of Right of Way and Land Surveys

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  California Department of Transportation
Description:  

Central Valley Spatial Reference Network

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  California Department of Transportation
Description:  

Comparison of Seven Protocols to Identify Fecal Contamination Sources Using Escherichia coli

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

Continuously Operating Reference Station (CORS)

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  National Geodetic Survey (NOAA)
Description:  

Daily Streamflow Conditions for California

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Data
Agency:  U.S. Geological Survey
Description:  Real-time streamflow data from automated equipment, representing the most current hydrologic conditions.

Design of a Real-Time Ground-Water Level Monitoring Network and Portrayal of Hydrologic Data in Southern Florida

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

Design of Ground-Water Level Observation-Well Programs

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  Journal Article
Agency:  U.S. Geological Survey
Description:  

Design of surface-water data networks for regional information

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Sustainability Indicator:  
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Determination of land subsidence related to ground-water-level declines using Global Positioning System and leveling surveys in Antelope Valley, Los Angeles and Kern counties, California, 1992

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  Example of geodetic leveling, combined with GNSS surveying, to monitor elevation change, Antelope Valley, CA

Discharge Measurements at Gaging Stations

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Documentation of the Seawater Intrusion (SWI2) Package for MODFLOW

Sustainability Indicator:  Seawater Intrusion
Topic:  Modeling
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Dual-stage pipe extensometer (San Lorenzo, CA; 2008)

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  Examples of extensometer construction, instrumentation, and data interpretation (pages 12-13)

Earth Observation

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  German Aerospace Center
Description:  

Earth Observation Satellites

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  Canadian Space Agency
Description:  

Earth Online

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  European Space Agency
Description:  

Sustainability Indicator:  
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

Estimation of aquifer scale proportion using equal area grids: Assessment of regional scale groundwater quality

Sustainability Indicator:  Water Quality
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  Journal Article
Agency:  U.S. Geological Survey
Description:  

Evaluation of alternative groundwater-management strategies for the Bureau of Reclamation Klamath Project, Oregon and California

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Modeling
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  

Evaluation of selected wells in Pennsylvania's observation-well program as of 1993

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

Extensometer methods commonly used by the USGS

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Field Techniques for Estimating Water Fluxes Between Surface Water and Ground Water

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Water Budget
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Framework for a ground-water quality monitoring and assessment program for California (GAMA)

Sustainability Indicator:  Water Quality
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  

Geodetic Bench Marks

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  National Geodetic Survey (NOAA)
Description:  

Geodetic Leveling

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  National Geodetic Survey (NOAA)
Description:  Geodetic Leveling - also called spirit leveling or differential leveling - specifications (network geometry, instrumentation, calibration procedures, field procedures, office procedures)

GPS/GNSS Pre-Processing Tools

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Software
Agency:  UNAVCO
Description:  UNAVCO lists other tools for pre-processiong GPS/GNSS data, currated at other locations around the world.

Graphical User Interfaces and Post Processors

Sustainability Indicator:  
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  

Ground-Water-Level Monitoring and the Importance of Long-Term Water-Level Data

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  USGS Fact Sheet / Circular
Agency:  U.S. Geological Survey
Description:  

Groundwater Availability of the Central Valley Aquifer, California

Sustainability Indicator:  Groundwater Levels
Topic:  Modeling
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  Any groundwater model will simulate change in storage over time. This report is a good example of how to convey the results (see page 77).

Groundwater model of the Blue River basin, Nebraska

Sustainability Indicator:  Groundwater Levels
Topic:  Modeling
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  Examines predictions for 1982 of water-level declines and streamflow depletions that were made in 1965 using an electric analog groundwater model of the Blue River basin in southeastern Nebraska.

Groundwater quality data in 15 GAMA study units: results from the 2006

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

Groundwater Technical Procedures of the U.S. Geological Survey

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Groundwater Toolbox: A graphical and mapping interface for analysis of hydrologic data

Sustainability Indicator:  
Topic:  Water Budget
Type:  Software
Agency:  U.S. Geological Survey
Description:  

Groundwater-quality data in the Monterey

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

GSFLOW

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Water Budget
Type:  Software
Agency:  U.S. Geological Survey
Description:  GSFLOW, developed by the USGS, is a coupled ground-water and surface-water flow model based on the integration of the Precipitation-Runoff Modeling System (PRMS) and the Modular Ground-Water Flow Model (MODFLOW-2005). Features of both PRMS and MODFLOW aid in recharge estimation.

GSFLOW: coupled groundwater and surface-water flow model

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  GSFLOW is a coupled Groundwater and Surface-water FLOW model based on the integration of the USGS Precipitation-Runoff Modeling System (PRMS) and the USGS Modular Groundwater Flow Model (MODFLOW and MODFLOW-NWT). GSFLOW was developed to simulate coupled groundwater/surface-water flow in one or more watersheds by simultaneously simulating flow across the land surface, within subsurface saturated and unsaturated materials, and within streams and lakes. Climate data consisting of measured or estimated precipitation, air temperature, and solar radiation, as well as groundwater stresses (such as withdrawals) and boundary conditions are the driving factors for a GSFLOW simulation.

Guidebook to studies of land subsidence due to groundwater withdrawal

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  Although more than 30 years old, many portions of this UNESCO publication, edited by Joseph Poland, continue to be relevant.

Guidelines and Standard Procedures for Continuous Water-Quality Monitors: Station Operation, Record Computation, and Data Reporting

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Guidelines for Establishing GPS-Derived Ellipsoid Heights (Standards: 2 cm and 5 cm)

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  National Geodetic Survey (NOAA)
Description:  

Guidelines for Establishing GPS-Derived Orthometric Heights

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  National Geodetic Survey (NOAA)
Description:  

Guidelines for Evaluating Ground-Water Flow Models

Sustainability Indicator:  Groundwater Levels
Topic:  Modeling
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Guidelines for preparation of State water-use estimates for 2005

Sustainability Indicator:  
Topic:  Water Budget
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

GWM: Groundwater Management Process for MODFLOW Using Optimization

Sustainability Indicator:  
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  

GWPD 1

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

GWPD 11

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

GWPD 12

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

GWPD 14

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

GWPD 16

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

GWPD 2

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

GWPD 3

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

GWPD 4

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

GWPD 5

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

GWPD 6

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

HST3D:A Computer Code for Simulation of Heat and Solute Transport in Three-Dimensional Ground-Water Flow Systems

Sustainability Indicator:  Water Quality
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  

Hybrid-Optimization Algorithm for the Management of a Conjunctive-Use Project and Well Field Design

Sustainability Indicator:  Water Quality
Topic:  Modeling
Type:  Journal Article
Agency:  U.S. Geological Survey
Description:  

HydroClimATe

Sustainability Indicator:  
Topic:  Water Budget
Type:  Software
Agency:  U.S. Geological Survey
Description:  

HydroClimATe: Hydrologic and Climatic Analysis Toolkit

Sustainability Indicator:  
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  

HyDroDSS: Hydrologic Drought Decision Support System

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  HyDroDSS is a hydrologic drought decision support system designed for use in the analysis of hydrologic variables that may indicate the risk for streamflows to be below user-defined flow targets at a designated data-collection site on a stream that may be adversely affected by pumping.

Hydrogeologic Setting and Conceptual Hydrologic Model of the Spring Creek Basin, Centre County, Pennsylvania, June 2005

Sustainability Indicator:  Water Quality
Topic:  Hydrogeologic Conceptual Model
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  

Hydrogeology, Hydrologic Effects of Development, and Simulation of Groundwater Flow in the Borrego Valley, San Diego County, California

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  Example of using GNSS on survey markers to monitor elevation change, Borrego Valley, CA

USGS baseflow analysis software

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Water Budget
Type:  Software
Agency:  U.S. Geological Survey
Description:  USGS baseflow analysis software

Identifying and Preserving High-Water Mark Data

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

INFIL3.0 - A grid-based, distributed-parameter watershed model to estimate net infiltration below the root zone

Sustainability Indicator:  
Topic:  Water Budget
Type:  Software
Agency:  U.S. Geological Survey
Description:  

Innovation in monitoring: The U.S. Geological Survey Sacramento

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  USGS Fact Sheet / Circular
Agency:  U.S. Geological Survey
Description:  

Interpreting and Reporting Radiological Water-Quality Data

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Land subsidence along the Delta-Mendota Canal in the northern part of the San Joaquin Valley, California, 2003-10

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  Example of using continuous GPS stations to monitor elevation change, San Joaquin Valley, CA

Land Subsidence in California

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Website
Agency:  U.S. Geological Survey
Description:  An overview of several aspects of subsidence, including affected areas in California, cause and effect, measurement, simulation, USGS studies, and other data and resources.

Land subsidence in the San Joaquin Valley, California, as of 1980

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  Example of geodetic leveling to monitor elevation change, San Joaquin Valley, CA

Land Subsidence in the United States

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  USGS Fact Sheet / Circular
Agency:  U.S. Geological Survey
Description:  Descriptions of subsidence and case studies relevant to California can be found in Part I

Land Subsidence in the United States (Fact Sheet)

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  USGS Fact Sheet / Circular
Agency:  U.S. Geological Survey
Description:  

Land Subsidence, Groundwater Levels, and Geology in the Coachella Valley, California, 1993

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  

Land subsidence, groundwater levels, and geology in the Coachella Valley, California, 1993-2010

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  Example of using GNSS on survey markers to monitor elevation change, Coachella Valley, CA

Levels at Gaging Stations

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Load Estimator (LOADEST): A FORTRAN Program for Estimating Constituent Loads in Streams and Rivers

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Software
Agency:  U.S. Geological Survey
Description:  

Measurement and computation of streamflow: Volume 1, Measurement of stage and discharge

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Measurement and computation of streamflow: Volume 2, Computation of Discharge

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Measuring Human-Induced Land Subsidence from Space

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  USGS Fact Sheet / Circular
Agency:  U.S. Geological Survey
Description:  

Measuring Land Subsidence from Space

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  USGS Fact Sheet / Circular
Agency:  U.S. Geological Survey
Description:  

Methods of Practice and Guidelines for Using Survey-Grade Global Navigation Satellite Systems (GNSS) to Establish Vertical Datum in the United States Geological Survey

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Mississippi River nitrate loads from high frequency sensor measurements and regression-based load estimation

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

Modeling and uncertainty of complex ground-water systems

Sustainability Indicator:  
Topic:  Modeling
Type:  Website
Agency:  U.S. Geological Survey
Description:  

MODFLOW and Related Programs

Sustainability Indicator:  Seawater Intrusion
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  MODFLOW is the USGS's three-dimensional (3D) finite-difference groundwater model. MODFLOW is considered an international standard for simulating and predicting groundwater conditions and groundwater/surface-water interactions.

MODFLOW Ground-Water Model

Sustainability Indicator:  Land Subsidence
Topic:  Modeling
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  The USGS codes SUB and SUB-WT, which are available within various versions of MODFLOW, provide a wide range of capabilities for simulating subsidence, including nstantaneous compaction, delayed compaction (common with thicker fine-grained units), and varying geostatic load (occurs with changes in water-table altitude).

MODFLOW-2000 Ground-Water Model - User Guide to the Subsidence and Aquifer-System Compaction (SUB) Package

Sustainability Indicator:  
Topic:  Modeling
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

MODFLOW-OWHM: One Water Hydrologic Flow Model

Sustainability Indicator:  Seawater Intrusion
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  The One-Water Hydrologic Flow Model (MF-OWHM) is an integrated hydrologic flow model (IHM) based on the Farm Process for MODFLOW-2000. MF-OWHM is designed for the analysis of a broad range of conjunctive-use issues. Conjunctive use is the combined use of groundwater and surface water. MF-OWHM allows the simulation, analysis, and management of human and natural water movement within a physically-based supply-and-demand framework.

MODPATH: A Particle-Tracking Model for MODFLOW

Sustainability Indicator:  Water Quality
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  Particle tracking can be used in some cases, in lieu of more complex methods, to simulate the movement of groundwater contaminants. MODPATH works with MODFLOW output to accomplish this.

Mojave Groundwater Resources

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  Website
Agency:  U.S. Geological Survey
Description:  USGS website on water-level, water-quality and land-subsidence studies in the Mojave River and Morongo Groundwater Basins provides map-based access to these data types and to interpretive maps developed from these data, including contour maps of groundwater levels and groundwater-level change.

Mojave Land-Subsidence Studies

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Website
Agency:  U.S. Geological Survey
Description:  Example of using InSAR to monitor subsidence, Mojave Desert, CA

National Geodetic Survey Geodetic Tool Kit

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  National Geodetic Survey (NOAA)
Description:  

Observation / Research Result Database

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  Japan Aerospace Exploration Agency
Description:  

Observing The Earth

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  Italian Space Agecy
Description:  

Occurrence and geochemistry of radium in water from principal drinking-water aquifer systems of the United States

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

Optical Sensors for Water Quality

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

Optical Techniques for the Determination of Nitrate in Environmental Waters: Guidelines for Instrument Selection, Operation, Deployment, Maintenance, Quality Assurance, and Data Reporting

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Optimization of Water-Level Monitoring Networks in the Eastern Snake River Plain Aquifer Using a Kriging-Based Genetic Algorithm Method

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  

OPUS: Online Positioning User Service

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  National Geodetic Survey (NOAA)
Description:  This Online Positioning User Service (OPUS) provides simplified access to high-accuracy National Spatial Reference System (NSRS) coordinates. Upload a GPS data file collected with a survey-grade GPS receiver and obtain an NSRS position via email.

PBO Network Monitoring

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  UNAVCO
Description:  

PHAST--A Computer Program for Simulating Groundwater Flow, Solute Transport, and Multicomponent Geochemical Reactions

Sustainability Indicator:  Water Quality
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  

PHREEQC (Version 3)--A Computer Program for Speciation, Batch-Reaction, One-Dimensional Transport, and Inverse Geochemical Calculations

Sustainability Indicator:  Water Quality
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  To consider the effects of mixing various water types, and other similar analyses, the USGS program PHREEQC simulates speciation, batch-reaction, one-dimensional transport, and does inverse geochemical calculations.

Predictive accuracy of a ground-water model

Sustainability Indicator:  
Topic:  Modeling
Type:  Journal Article
Agency:  U.S. Geological Survey
Description:  

PRMS-IV, the Precipitation-Runoff Modeling System, Version 4

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  

Radiochemical Sampling and Analysis of Shallow Ground Water and Sediment at the BOMARC Missile Facility, East-Central New Jersey, 1999-2000

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

Real-time, continuous water-quality monitoring in Indiana and Kentucky

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

Reconnaissance of the hydrology, water quality, and sources of bacterial and nutrient contamination in the Ozark Plateaus Aquifer System and Cave Springs Branch of Honey Creek, Delaware County, Oklahoma, March 1999-March 2000

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

Sustainability Indicator:  
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

San Bernardino Valley Optimal Basin Management

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  Website
Agency:  U.S. Geological Survey
Description:  USGS San Bernardino Optimal Basin Management website provides all data associated with seven multi-depth monitoring well installations, including site description, lithologic and geophysical logs, data from core samples, and links to the water-level and water-quality data.

Scripps Orbit and Permanent Array Center (SOPAC)

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  Scripps Institution of Oceanography
Description:  Processing and archiving high-precision GPS data for the study of earthquake hazards, tectonic plate motion, crustal deformation and meteorology

SEAWAT: A Computer Program for Simulation of Three-Dimensional Variable-Density Ground-Water Flow and Transport

Sustainability Indicator:  Seawater Intrusion
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  SEAWAT is a USGS code designed to simulate three-dimensional variable-density groundwater flow coupled with multi-species solute and heat transport. The program has been used for a wide variety of groundwater studies, including those focused on brine migration in continental aquifers, and on saltwater intrusion in coastal aquifers.

Selection and application of microbial source tracking tools for water-quality investigations

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Selection, installation, and documentation of wells, and collection of related data (OFR 95-398)

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  

SHARP: A quasi-three-dimensional, numerical finite-difference model to simulate freshwater and saltwater flow separated by a sharp interface in layered coastal aquifer systems

Sustainability Indicator:  Seawater Intrusion
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  Software

Single-stage pipe extensometer (Edwards Air Force Base, CA; 1990)

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  Examples of extensometer construction, instrumentation, and data interpretation (pages 20-23)

Stage Measurement at Gaging Stations

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Standards for the Analysis and Processing of Surface-Water Data and Information Using Electronic Methods

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  

Statistical Design of Water-Level Monitoring Networks

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  USGS Fact Sheet / Circular
Agency:  U.S. Geological Survey
Description:  

StreamStats

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Software
Agency:  U.S. Geological Survey
Description:  StreamStats is a Web application that incorporates a Geographic Information System (GIS) to provide users with access to an assortment of analytical tools that are useful for a variety of water-resources planning and management purposes, and for engineering and design purposes.

STRMDEPL08

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  

Surface-Water Historical Instantaneous Data for California

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Data
Agency:  U.S. Geological Survey
Description:  

Surface-Water Watch

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Data
Agency:  U.S. Geological Survey
Description:  Maps California streamgage sites and compares real-time streamflow to historical streamflow for the day of the year.

Survey Markers and Monumentation

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Army Corps of Engineers
Description:  

Survey Marks and Datasheets

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Data
Agency:  National Geodetic Survey (NOAA)
Description:  Information about survey markers can be found using a variety of tools on the National Geodetic Survey (formerly the U.S. Coast and Geodetic Survey) website

SUTRA and related programs (SutraSuite)

Sustainability Indicator:  Water Quality
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  SUTRA simulates 3D, variable-density, variably-saturated flow, solute or energy transport.

SUTRA-MS Version 1.1

Sustainability Indicator:  Water Quality
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  A version of SUTRA modified to simulate heat and multiple-solute transport.

SWB

Sustainability Indicator:  
Topic:  Water Budget
Type:  Software
Agency:  U.S. Geological Survey
Description:  

Synthetic Apeture Radar (SAR) Software

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Software
Agency:  UNAVCO
Description:  UNAVCO provides access to SAR data via the UNAVCO SAR Archive. This is a list of InSAR processing software commonly utilized by community researchers.

System And Boundary Conceptualization In Ground-Water Flow Simulation

Sustainability Indicator:  
Topic:  Modeling
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

TEQC - The Toolkit for GPS/GLONASS/Galileo/SBAS/Beidou/QZSS Data

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Software
Agency:  UNAVCO
Description:  Teqc (pronouced "tek") is a simple yet powerful and unified approach to solving many pre-processing problems with GPS, GLONASS, Galileo, SBAS, Beidou-2/Compass, and QZSS data, especially in RINEX or BINEX format.

The computer model SHARP, a quasi-three-dimensional finite-difference model to simulate freshwater and saltwater flow in layered coastal aquifer systems

Sustainability Indicator:  Seawater Intrusion
Topic:  Modeling
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  SHARP software documentation

The Farm Process Version 2 (FMP2) for MODFLOW-2005

Sustainability Indicator:  
Topic:  Water Budget
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Tidally Driven Export of Dissolved Organic Carbon, Total Mercury, and Methylmercury from a Mangrove-Dominated Estuary

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  

TracerLPM (Version 1): An Excel

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Tracing and Dating Young Ground Water

Sustainability Indicator:  Water Quality
Topic:  Monitoring Protocols
Type:  USGS Fact Sheet / Circular
Agency:  U.S. Geological Survey
Description:  

Two Graphical User Interfaces for Managing and Analyzing MODFLOW Groundwater-Model Scenarios

Sustainability Indicator:  
Topic:  Modeling
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

U.S. Geological Survey Groundwater Toolbox, A Graphical and Mapping Interface for Analysis of Hydrologic Data (Version 1.0)

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Water Budget
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Use of Submersible Pressure Transducers in Water-Resources Investigations

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

User Guide for the Farm Process (FMP1) for the U.S. Geological Survey's Modular Three-Dimensional Finite-Difference Ground-Water Flow Model, MODFLOW-2000

Sustainability Indicator:  
Topic:  Water Budget
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

User Guide to Exploration and Graphics for RivEr Trends (EGRET) and dataRetrieval: R Packages for Hydrologic Data

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Water Budget
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

USGS National Streamflow Information Program (NSIP)

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Website
Agency:  U.S. Geological Survey
Description:  

USGS Policy for evaluation of well integrity for water-level measurements

Sustainability Indicator:  Groundwater Levels
Topic:  Monitoring Protocols
Type:  Technical Documentation
Agency:  U.S. Geological Survey
Description:  

Vertical-Deformation, Water-Level, Microgravity, Geodetic, Water-Chemistry, and Flow-Rate Data Collected During Injection, Storage, and Recovery Tests at Lancaster, Antelope Valley, California, September 1995 through September 1998

Sustainability Indicator:  Land Subsidence
Topic:  Monitoring Protocols
Type:  Case Study
Agency:  U.S. Geological Survey
Description:  Example of using continuous GPS stations to monitor elevation change, Lancaster, CA

VS2DI (ver 1.3): A graphical software package for simulating fluid flow and solute or energy transport in variably saturated porous media

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  Multiple versions of this code can simulate 1D or 2D energy (or heat) transport; these codes are often used to estimate surface-water/groundwater interactions from temperature measurements in each of these systems.

Water Resources Groundwater Software

Sustainability Indicator:  Seawater Intrusion
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  General source for all USGS groundwater-related modeling tools

Water Resources Surface Water Software

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Modeling
Type:  Software
Agency:  U.S. Geological Survey
Description:  General source for all USGS surface-water-related modeling tools

Water-resources data network evaluation for Monterey County, California; Phase 2, northern and coastal areas of Monterey County

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Networks and Identification of Data Gaps
Type:  USGS Report
Agency:  U.S. Geological Survey
Description:  

What is a Streamgage, and how does it work?

Sustainability Indicator:  Interconnected Surface-Water Depletion
Topic:  Monitoring Protocols
Type:  Website
Agency:  U.S. Geological Survey
Description:  

WTAQ Version 2

Sustainability Indicator:  
Topic:  Hydrogeologic Conceptual Model
Type:  Software
Agency:  U.S. Geological Survey
Description:  

Have a SGMA science question or collaboration idea?

Photo of a USGS California Water Science Center Hydrologist with a partner agency representative

The USGS California Water Science Center works with Local, State and other Federal agencies to conduct studies that will help give water managers the knowledge they need to effectively allocate water resources under increasing demands.






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