Subcommittee D18.21 on Groundwater and Vadose Zone Investigations
Matching Standards Under the Jurisdiction of D18.21 by Status
- D4105/D4105M-20 Standard Practice for (Analytical Procedure) for Determining Transmissivity and Storage Coefficient of Nonleaky Confined Aquifers by the Modified Theis Nonequilibrium Method
- D4696-18 Standard Guide for Pore-Liquid Sampling from the Vadose Zone
- D5299/D5299M-18 Standard Guide for Decommissioning of Groundwater Wells, Vadose Zone Monitoring Devices, Boreholes, and Other Devices for Environmental Activities
- D5472/D5472M-20 Standard Practice for Determining Specific Capacity and Estimating Transmissivity at the Control Well
- D5783-18(2025) Standard Guide for Use of Direct Rotary Drilling with Water-Based Drilling Fluid for Geoenvironmental Exploration and the Installation of Subsurface Water-Quality Monitoring Devices
- -See also WK91881 proposed Reapproval
- D5875/D5875M-18(2025) Standard Guide for Use of Cable-Tool Drilling and Sampling Methods for Geoenvironmental Exploration and Installation of Subsurface Water Quality Monitoring Devices
- -See also WK91884 proposed Reapproval
- D5473/D5473M-20 Standard Practice for (Analytical Procedures) Analyzing the Effects of Partial Penetration of Control Well and Determining the Horizontal and Vertical Hydraulic Conductivity in a Nonleaky Confined Aquifer
- D5850-20 Standard Practice for (Analytical Procedure) Determining Transmissivity, Storage Coefficient, and Anisotropy Ratio from a Network of Partially Penetrating Wells
- D5912-20 Standard Practice for (Analytical Procedure) Determining Hydraulic Conductivity of an Unconfined Aquifer by Overdamped Well Response to Instantaneous Change in Head (Slug)
- D5920/D5920M-20 Standard Practice for (Analytical Procedure) Tests of Anisotropic Unconfined Aquifers by Neuman Method
- D5981/D5981M-18 Standard Guide for Calibrating a Groundwater Flow Model Application
- D6001/D6001M-20 Standard Guide for Direct-Push Groundwater Sampling for Environmental Site Characterization
- D6028/D6028M-20 Standard Practice for (Analytical Procedure) Determining Hydraulic Properties of a Confined Aquifer Taking into Consideration Storage of Water in Leaky Confining Beds by Modified Hantush Method
- D6029/D6029M-20 Standard Practice for (Analytical Procedures) Determining Hydraulic Properties of a Confined Aquifer and a Leaky Confining Bed with Negligible Storage by the Hantush-Jacob Method
- D6030-25 Standard Guide for Selection of Methods for Assessing Sensitivity and Vulnerability of Groundwater in Intergranular Aquifers
- -See also WK76196 proposed Revision
- -See also WK89581 proposed Reinstatement
- D6034-20 Standard Practice for (Analytical Procedure) Determining the Efficiency of a Production Well in a Confined Aquifer from a Constant Rate Pumping Test
- D7352-18 Standard Practice for Volatile Contaminant Logging Using a Membrane Interface Probe (MIP) in Unconsolidated Formations with Direct Push Methods
- -See also WK91877 proposed Reapproval
- D7758-17 Standard Practice for Passive Soil Gas Sampling in the Vadose Zone for Source Identification, Spatial Variability Assessment, Monitoring, and Vapor Intrusion Evaluations
- D8037/D8037M-24 Standard Practice for Direct Push Hydraulic Logging for Profiling Variations of Permeability in Soils
- -See also WK85553 proposed Reapproval
- D8408/D8408M-21 Standard Guide for Development of Long-Term Monitoring Plans for Vapor Mitigation Systems
- D6170-17 Standard Guide for Selecting a Groundwater Modeling Code
- D5088-20 Standard Practice for Decontamination of Field Equipment Used at Waste Sites
- D4050-20 Standard Test Method for (Field Procedure) for Withdrawal and Injection Well Testing for Determining Hydraulic Properties of Aquifer Systems
- D4630-19 Standard Test Method for Determining Transmissivity and Storage Coefficient of Low-Permeability Rocks by In Situ Measurements Using the Constant Head Injection Test
- D4631-18 Standard Test Method for Determining Transmissivity and Storativity of Low Permeability Rocks by In Situ Measurements Using Pressure Pulse Technique
- D5737/D5737M-19 Standard Guide for Methods for Measuring Well Discharge
- D5745-23 Standard Guide for Developing and Implementing Interim and Early Actions for Waste Contamination Site Remediation
- -See also WK88614 proposed Revision
- D5781/D5781M-18(2025) Standard Guide for Use of Dual-Wall Reverse-Circulation Drilling for Geoenvironmental Exploration and the Installation of Subsurface Water Quality Monitoring Devices
- -See also WK91879 proposed Reapproval
- D5782-18 Standard Guide for Use of Direct Air-Rotary Drilling for Geoenvironmental Exploration and the Installation of Subsurface Water-Quality Monitoring Devices
- -See also WK91880 proposed Reapproval
- -See also WK89585 proposed Reapproval
- D5784/D5784M-18(2025) Standard Guide for Use of Hollow-Stem Augers for Geoenvironmental Exploration and the Installation of Subsurface Water Quality Monitoring Devices
- -See also WK91882 proposed Reapproval
- D5979-96(2019)e1 Standard Guide for Conceptualization and Characterization of Groundwater Systems
- D6089-19(2023) Standard Guide for Documenting a Groundwater Sampling Event
- D6169/D6169M-21 Standard Guide for Selection of Subsurface Soil and Rock Sampling Devices for Environmental and Geotechnical Investigations
- D6286/D6286M-20 Standard Guide for Selection of Drilling and Direct Push Methods for Geotechnical and Environmental Subsurface Site Characterization
- D6517-18(2023) Standard Guide for Field Preservation of Ground Water Samples
- D7262-23 Standard Test Methods for Estimating the Permanganate Natural Oxidant Demand of Soil and Aquifer Solids
- -See also WK88626 proposed Revision
- D6914/D6914M-16(2024) Standard Practice for Sonic Drilling for Site Characterization and the Installation of Subsurface Monitoring Devices
- D5270/D5270M-20 Standard Practice for (Analytical Procedures) Determining Transmissivity and Storage Coefficient of Bounded, Nonleaky, Confined Aquifers
- D5447-17 Standard Guide for Application of a Numerical Groundwater Flow Model to a Site-Specific Problem
- D5716/D5716M-20 Standard Test Method for Measuring the Rate of Well Discharge by Circular Orifice Weir
- D6031/D6031M-24 Standard Test Method for Logging In Situ Moisture Content and Density of Soil and Rock by the Nuclear Method in Horizontal, Slanted, and Vertical Access Tubes
- -See also WK85554 proposed Reapproval
- -See also WK89410 proposed Revision
- D6067/D6067M-17 Standard Practice for Using the Electronic Piezocone Penetrometer Tests for Environmental Site Characterization and Estimation of Hydraulic Conductivity
- -See also WK95612 proposed Revision
- -See also WK91876 proposed Reapproval
- D6452-18(2023) Standard Guide for Purging Methods for Wells Used for Ground Water Quality Investigations
- D8106-17 Standard Test Methods for Determining the Oil Sorption Capacity of Organophilic Clay
- -See also WK85557 proposed Reapproval
- -See also WK88234 proposed Revision
- D4043-17 Standard Guide for Selection of Aquifer Test Method in Determining Hydraulic Properties by Well Techniques
- -See also WK89584 proposed Reapproval
- D5855/D5855M-20 Standard Practice for (Analytical Procedure) Determining Transmissivity and Storage Coefficient of Confined Nonleaky or Leaky Aquifer by Constant Drawdown Method in Flowing Well
- D6312-17 Standard Guide for Developing Appropriate Statistical Approaches for Groundwater Detection Monitoring Programs at Waste Disposal Facilities
- D7045-17 Standard Guide for Optimization of Groundwater Monitoring Constituents for Detection Monitoring Programs for Waste Disposal Facilities
- D8460-22 Standard Test Method for Quantification of Volatile Organic Compounds Using Proton Transfer Reaction Mass Spectrometry
- D6564/D6564M-17(2024) Standard Guide for Field Filtration of Groundwater Samples
- D4104/D4104M-20 Standard Practice for (Analytical Procedures) Determining Transmissivity of Nonleaky Confined Aquifers by Overdamped Well Response to Instantaneous Change in Head (Slug Tests)
- D4106-20 Standard Practice for (Analytical Procedure) for Determining Transmissivity and Storage Coefficient of Nonleaky Confined Aquifers by the Theis Nonequilibrium Method
- D5092/D5092M-16(2024) Standard Practice for Design and Installation of Groundwater Monitoring Wells
- D5521/D5521M-18(2025) Standard Guide for Development of Groundwater Monitoring Wells in Granular Aquifers
- -See also WK91878 proposed Reapproval
- D5785/D5785M-20 Standard Practice for (Analytical Procedure) for Determining Transmissivity of Confined Nonleaky Aquifers by Underdamped Well Response to Instantaneous Change in Head (Slug Test)
- D5786-17 Standard Practice for (Field Procedure) for Constant Drawdown Tests in Flowing Wells for Determining Hydraulic Properties of Aquifer Systems
- -See also WK85555 proposed Reapproval
- D5787-20 Standard Practice for Monitoring Well Protection At or Near Land Surface
- D5872/D5872M-18(2025) Standard Guide for Use of Casing Advancement Drilling Methods for Geoenvironmental Exploration and Installation of Subsurface Water Quality Monitoring Devices
- -See also WK91883 proposed Reapproval
- D5876/D5876M-17(2024) Standard Guide for Use of Direct Rotary Wireline Casing Advancement Drilling Methods for Geoenvironmental Exploration and Installation of Subsurface Water-Quality Monitoring Devices
- D5881-20 Standard Practice for (Analytical Procedures) Determining Transmissivity of Confined Nonleaky Aquifers by Critically Damped Well Response to Instantaneous Change in Head (Slug)
- D5903-96(2023) Standard Guide for Planning and Preparing for a Groundwater Sampling Event
- D5978/D5978M-16(2024) Standard Guide for Maintenance and Rehabilitation of Groundwater Monitoring Wells
- D5980-16(2024) Standard Guide for Selection and Documentation of Existing Wells for Use in Environmental Site Characterization and Monitoring
- D6282/D6282M-25 Standard Guide for Direct Push Soil Sampling for Environmental Site Characterizations
- -See also WK85810 proposed Reinstatement
- D6724/D6724M-16(2024)e1 Standard Guide for Installation of Direct Push Groundwater Monitoring Wells
- D6725/D6725M-16(2024)e1 Standard Practice for Direct Push Installation of Prepacked Screen Monitoring Wells in Unconsolidated Aquifers
- D6771-21 Standard Practice for Low-Flow Purging and Sampling Used for Groundwater Monitoring
- D7069-24 Standard Guide for Field Quality Assurance in a Groundwater Sampling Event
- D7663-12(2024) Standard Practice for Active Soil Gas Sampling in the Vadose Zone for Vapor Intrusion Evaluations
- D7929-20 Standard Guide for Selection of Passive Techniques for Sampling Groundwater Monitoring Wells
- D7626-19e1 Standard Test Methods for Determining the Organic Treat Loading of Organophilic Clay
- D8170-20 Standard Guide for Using Disposable Handheld Soil Core Samplers for the Collection and Storage of Soil for Volatile Organic Analysis
- WK66935 Detection of Hydrocarbon Liquids in Soils by Fluorescence with the Optical Imaging Profiler Using Direct Push Methods
- D5314 Standard Guide for Soil Gas Monitoring in the Vadose Zone (Withdrawn 2015)
- D5408 Standard Guide for Set of Data Elements to Describe a Groundwater Site;
Part One - D5738-95(2006) Standard Guide for Displaying the Results of Chemical Analyses of Groundwater for Major Ions and Trace Elements
- D5911_D5911M Standard Practice for Minimum Set of Data Elements to Identify a Soil Sampling Site (Withdrawn 2019)
- D5981-96(2008) Standard Guide for Calibrating a Groundwater Flow Model Application (Withdrawn 2017)
- D7242/D7242M-06(2013)e1 Standard Practice for Field Pneumatic Slug (Instantaneous Change in Head) Tests to Determine Hydraulic Properties of Aquifers with Direct Push Groundwater Samplers (Withdrawn 2022)
- -See also WK87723 proposed Reinstatement
- -See also WK85384 proposed Reinstatement
- D7648/D7648M-18 Standard Practice for Active Soil Gas Sampling for Direct Push or Manual-Driven Hand-Sampling Equipment (Withdrawn 2024)
- D3404-15 Standard Guide for Measuring Matric Potential in Vadose Zone Using Tensiometers (Withdrawn 2024)
- D4750-87(2001) Standard Test Method for Determining Subsurface Liquid Levels in a Borehole or Monitoring Well (Observation Well) (Withdrawn 2010)
- D5473 Standard Test Method for (Analytical Procedure for) Analyzing the Effects of Partial Penetration of Control Well and Determining the Horizontal and Vertical Hydraulic Conductivity in a Nonleaky Confined Aquifer (Withdrawn 2015)
- D5474-93(2012) Standard Guide for Selection of Data Elements for Groundwater Investigations (Withdrawn 2021)
- D5716 Standard Test Method for Measuring the Rate of Well Discharge by Circular Orifice Weir (Withdrawn 2015)
- D5981 Standard Guide for Calibrating a Groundwater Flow Model Application (Withdrawn 2017)
- D4700-15 Standard Guide for Soil Sampling from the Vadose Zone (Withdrawn 2024)
- D5718-13 Standard Guide for Documenting a Groundwater Flow Model Application (Withdrawn 2022)
- D5719-13 Standard Guide for Simulation of Subsurface Airflow Using Groundwater Flow Modeling Codes (Withdrawn 2022)
- D5754-95(2006) Standard Guide for Displaying the Results of Chemical Analyses of Groundwater for Major Ions and Trace Elements
- D6025-96(2008) Standard Guide for Developing and Evaluating Groundwater Modeling Codes (Withdrawn 2017)
- D5254_D5254M Standard Practice for Minimum Set of Data Elements to Identify a Groundwater Site (Withdrawn 2019)
- D5409_D5409M Standard Guide for Set of Data Elements to Describe a Groundwater Site; Part Two
- D6025 Standard Guide for Developing and Evaluating Groundwater Modeling Codes (Withdrawn 2017)
- D6106 Standard Guide for Establishing Nomenclature of Groundwater Aquifers (Withdrawn 2019)
- D6168 Standard Guide for Selection of Minimum Set of Data Elements Required to Identify Locations Chosen for Field Collection of Information to Describe Soil, Rock, and Their Contained Fluids (Withdrawn 2019)
- D6171 Standard Guide for Documenting a Groundwater Modeling Code (Withdrawn 2019)
- D6642 Standard Guide for Comparison of Techniques to Quantify the Soil-Water (Moisture) Flux (Withdrawn 2015)
- D5911/D5911M-96(2010)e1 Standard Practice for Minimum Set of Data Elements to Identify a Soil Sampling Site (Withdrawn 2019)
- D6642-01(2006) Standard Guide for Comparison of Techniques to Quantify the Soil-Water (Moisture) Flux (Withdrawn 2015)
- D6000/D6000M-15e1 Standard Guide for Presentation of Water-Level Information from Groundwater Sites (Withdrawn 2024)
- D6565-00(2005) Standard Test Method for Determination of Water (Moisture) Content of Soil by the Time-Domain Reflectometry (TDR) Method (Withdrawn 2014)
- D4044/D4044M-15 Standard Test Method for (Field Procedure) for Instantaneous Change in Head (Slug) Tests for Determining Hydraulic Properties of Aquifers (Withdrawn 2024)
- -See also WK76118 proposed Revision
- D5126-16e1 Standard Guide for Comparison of Field Methods for Determining Hydraulic Conductivity in Vadose Zone (Withdrawn 2025)
- -See also WK85572 proposed Revision
- -See also WK93842 proposed Reinstatement
- D5269-15 Standard Test Method for Determining Transmissivity of Nonleaky Confined Aquifers by the Theis Recovery Method (Withdrawn 2024)
- -See also WK76195 proposed Revision
- D5409/D5409M-93(2010)e1 Standard Guide for Set of Data Elements to Describe a Groundwater Site; Part Two
- D5410-93(2007) Standard Guide for Set of Data Elements to Describe a Groundwater Site;
Part Three - D5877-95(2005) Standard Guide for Displaying Results of Chemical Analyses of Groundwater for Major Ions and Trace Elements
- D5408-93(2010)e1 Standard Guide for Set of Data Elements to Describe a Groundwater Site;
Part One - D5490-93(2014)e1 Standard Guide for Comparing Groundwater Flow Model Simulations to Site-Specific Information (Withdrawn 2023)
- D5609-16 Standard Guide for Defining Boundary Conditions in Groundwater Flow Modeling (Withdrawn 2025)
- D5880-95(2006) Standard Guide for Subsurface Flow and Transport Modeling (Withdrawn 2015)
- D6106-97(2010) Standard Guide for Establishing Nomenclature of Groundwater Aquifers (Withdrawn 2019)
- D6171-97(2010) Standard Guide for Documenting a Groundwater Modeling Code (Withdrawn 2019)
- D5610-94(2014) Standard Guide for Defining Initial Conditions in Groundwater Flow Modeling (Withdrawn 2023)
- D5611-94(2016) Standard Guide for Conducting a Sensitivity Analysis for a Groundwater Flow Model Application (Withdrawn 2025)
- D5754 Standard Guide for Displaying the Results of Chemical Analyses of Groundwater for Major Ions and Trace Elements
- D6033-16 Standard Guide for Describing the Functionality of a Groundwater Modeling Code (Withdrawn 2025)
- D6036-96(2014) Standard Guide for Displaying the Results of Chemical Analyses of Groundwater for Major Ions and Trace Elements—Use of Maps (Withdrawn 2023)
- D6168-97(2010) Standard Guide for Selection of Minimum Set of Data Elements Required to Identify Locations Chosen for Field Collection of Information to Describe Soil, Rock, and Their Contained Fluids (Withdrawn 2019)
- D6187 Standard Practice for Cone Penetrometer Technology Characterization of Petroleum Contaminated Sites with Nitrogen Laser-Induced Fluorescence (Withdrawn 2019)
- D6911-15 Standard Guide for Packaging and Shipping Environmental Samples for Laboratory Analysis (Withdrawn 2024)
- D5254/D5254M-92(2010)e1 Standard Practice for Minimum Set of Data Elements to Identify a Groundwater Site (Withdrawn 2019)
- D5314-92(2006) Standard Guide for Soil Gas Monitoring in the Vadose Zone (Withdrawn 2015)
- D5410 Standard Guide for Set of Data Elements to Describe a Groundwater Site;
Part Three - D5608-16 Standard Practices for Decontamination of Sampling and Non Sample Contacting Equipment Used at Low Level Radioactive Waste Sites (Withdrawn 2025)
- -See also WK87722 proposed Revision
- -See also WK84671 proposed Reapproval
- D5717-95e1 Standard Guide for Design of Ground-Water Monitoring Systems in Karst and Fractured-Rock Aquifers (Withdrawn 2005)
- D5738 Standard Guide for Displaying the Results of Chemical Analyses of Groundwater for Major Ions and Trace Elements
- D5880 Standard Guide for Subsurface Flow and Transport Modeling (Withdrawn 2015)
- D6187-97(2010) Standard Practice for Cone Penetrometer Technology Characterization of Petroleum Contaminated Sites with Nitrogen Laser-Induced Fluorescence (Withdrawn 2019)
- D6285-99(2016) Standard Guide for Locating Abandoned Wells (Withdrawn 2025)
- -See also WK84675 proposed Reapproval
- D6634/D6634M-14 Standard Guide for the Selection of Purging and Sampling Devices for Groundwater Monitoring Wells (Withdrawn 2023)
- D7048-16 Standard Guide for Applying Statistical Methods for Assessment and Corrective Action Environmental Monitoring Programs (Withdrawn 2025)