Water Quality Technical Memorandums

• qw08.06 Policy for Interpreting and Reporting of Radiological Data
• qw08.05 Appropriate Data Storage in the National Water Information System (NWIS)
• qw08.04 Nitrogen Isotope Analyses – Information and Revised Field Procedures
• qw08.03 National Monitoring Network Water-Quality Sampling, Fiscal Year (FY) 2008
• qw08.02 National Water Information System—Guidance for using CAS Registry Numbers and USEPA Substance Registry Names
• qw08.01 National Stream Quality Accounting Network, Fiscal Year (FY) 2008
• qw07.06 Field Methods -- Guidance for commercial sources for prepared microbiological media; original distributor no longer carrying recommended media
• qw07.05 Programs and Plans—Release of NASQAN ad hoc Technical Committee Report
• qw07.04 Controlling Flow of Water-Quality Data to NWISWeb
• qw07.03 Changes to the NWISWeb Aggregation and Display of Water-Quality Data
• qw07.02 National Stream Quality Accounting Network, Fiscal Year (FY) 2007
• qw07.01 Policy for the Evaluation and Approval of Analytical Laboratories
• qw06.04 Data Bases--Electronic Transmission of Analytical Laboratory Data for Entry into QWDATA Release 4.6
• qw06.03 National Water Information System - Notice of enhancements planned for the QWDATA software that will affect NWIS QWDATA batch file formats
• qw06.02 National Stream Quality Accounting Network, Fiscal Year (FY) 2006
• qw06.01 Storage of Water-Level Data for Ground Water
• qw05.03 Use of the Program HYDRA to Estimate or Modify Unit Values in ADAPS
• qw05.02 Field Methods -- Guidance for microbiological monitoring and commercial sources for microbiological media; bacteria kits discontinued on June 17, 2005
• qw05.01 National Stream Quality Accounting Network, Fiscal Year (FY) 2005
• qw04.03 Revision of NFM Chapter 6, Section 6.7 - Turbidity
• qw04.02 The Graphical Constituent Loading Analysis System (GCLAS) for computing discharges of suspended sediment and other water-quality constituents
• qw04.01 Revised Policy for the Approval of U.S. Geological Survey (USGS) Water-Quality Analytical Methods
• qw03.07 Nitrogen Isotope Analyses -- Changes in Laboratory Capabilities and Field Procedures
• qw03.06 Hydrologic Benchmark Network, Fiscal Year (FY)
• qw03.04 National Stream Quality Accounting Network, Fiscal Year (FY) 2003
• qw03.03 Changes in Parameter Names Used in the NWIS Parameter Code Dictionary
• qw03.02 DATA--Guidance for the Use of the Program HYDRA to Estimate or Modify Edited Unit Values from ADAPS
• qw03.01 Use of parameter-method code pairs in the National Water Information System (NWIS) and the process for requesting parameter codes and method codes
• qw02.15 Use of the new data-quality-indicator (DQI) field in NWIS 4_1
• qw02.14 Availability of Universal Blank Water for Inorganic and Organic Analyses
• qw02.13 Water-Quality Field Methods/National Field Manual for the Collection of Water-Quality Data
• qw02.12 Availability of S-ESTREND, a S-PLUS® based version of ESTREND
• qw02.11 Policy for Storing and Reporting Significant Figures for Chemical Data
• qw02.10 Availability of Guidance for Identifying and Correcting Small-Magnitude, Negative Values in the NWIS Water-Quality Databases
• qw02.09 Water-Quality Field Methods?phaseout of US D-77 and frame-type samplers
• qw02.08 National Park Service (NPS)/U.S. Geological Survey (USGS) Water-Quality Monitoring and Assessment (WQMA) Partnership for fiscal year (FY) 2003
• qw02.07 Subject: National Stream Quality Accounting Network, Fiscal Year (FY) 2002
• qw02.06 Data Bases--Electronic transmission of analytical laboratory data for entry into QWDATA Release 4_1
• qw02.05 Approval of Laboratories with existing National Environmental Laboratory Accreditation Conference (NELAC) accreditation
• qw02.04 National Water Quality System (NWIS) Water-Quality Software?Errors in Small Magnitude, Negative Values
• qw02.03 National Water Quality System (NWIS) QWDATA Rounding Code/update to fix errors
• qw02.02 USGS Capabilities and Plans Related to Water System Security
• qw02.01 Change in mTEC agar used for Escherichia coli determination
• qw01.07 USGS National Water Quality Laboratory Work With Others Policy
• qw01.06 Replacement of National Water Quality Laboratory Schedule 172, Determination of Trace Elements in Blank Water, with Schedule 1673
• qw01.05 Preferred Parameter Codes for Indicator Bacteria Methods
• qw01.04 National Park Service (NPS)/U.S. Geological Survey (USGS) Water-Quality Monitoring and Assessment (WQMA) Partnership for fiscal year (FY) 2001
• qw01.03 Collection and Use of Total Suspended Solids Data
• qw01.02 Guidance for Verifying and Interpreting Field Blank Determinations that ndicate High Pesticide or Trace Element Concentrations or that Show Large Numbers of Detections
• qw01.01.revised National Stream Quality Accounting Network, Fiscal Year (FY) 2001
• qw00.10 Discrete Water-Quality Data in NWISWeb
• qw00.09 Mandatory Use of New Analytical Services Request (ASR) Form for Submitting Samples to the National Water Quality Laboratory
• qw00.08 New Method for Particulate Carbon and Particulate Nitrogen
• qw00.07 Particulate Organic Carbon Supplement
• qw00.06Revised Approval of Conditional Data from the National Water Quality aboratory Lab Code 9090 -- Low-Level Volatile Organic Chemicals
• qw00.06 Approval of Conditional Data from the National Water Quality Laboratory Lab Code 9090 -- Low-Level Volatile Organic Chemicals
• qw00.05 Particulate Organic Carbon
• qw00.04 National Park Service Level 1 Water-Quality Inventory and Monitoring Program
• qw00.03 National Park Service (NPS)/Water Resources Division (WRD) Water-Quality Monitoring and Assessment (WQMA) Partnership for fiscal year (FY) 2001
• qw00.02 Policy for the Reimbursement of Costs for Quality Assurance of Water-Quality Analytical Laboratories
• qw00.01 National Stream Quality Accounting Network, Fiscal Year (FY) 2000

• qw99.04 Changes in Field Treatment Protocols and Bottle Types for Whole-Water Samples Collected for Total Ammonium plus Organic Nitrogen and Total Phosphorus Determinations
• qw99.03 National Stream Quality Accounting Network, Fiscal Year (FY) 1999
• qw99.02-sw99. Guidance for Collecting Discharge-Weighted Samples in Surface Water Using an Isokinetic Sampler. For the entire report see sw99.01.pdf
• qw99.01 Tables of Dissolved Oxygen Saturation Values
• qw98.06 Change in Nitric Acid Preservative for Trace Element Samples
• qw98.05 Policy for the Approval of U.S. Geological Survey (USGS) Water-Quality Analytical Methods
• qw98.04 Guidance for Interpretation of NWQL Schedule 2020 and 2021 VOC Data
• qw98.03 Policy for the Evaluation and Approval of Production Analytical Laboratories
• qw98.02 National Stream Quality Accounting Network, Fiscal Year (FY) 1998
• qw98.01 Hydrologic Benchmark Network, Fiscal Year (FY) 1998
• qw97.08 NWIS: New Remark Code (V) for Water-Quality Data
• qw97.07 Protocols for Collection of Water-Quality Data for Ground-Water Studies
• qw97.06 Comparison of the Suspended-Sediment Splitting Capabilities of the Churn and Cone Splitters
• qw97.05 TMDL -- Should USGS be doing something?
• qw97.04 PUBLICATIONS--Use of Parameter Codes in Annual Data Reports
• qw97.03 Protocols for Cleaning a Teflon Cone Splitter to Produce Contaminant-Free Subsamples for Subsequent Determinations of Trace Elements
• qw97.02 Mercury Cycling in the Environment Workshop, July 7-9, 1996
• qw96.08 NATIONAL WATER INFORMATION SYSTEM--Modifications to Parameter Code Request Procedure (OWQ Tech Memo 90.10)
• qw96.07 PUBLICATIONS: "The Use of Suspended Sediment and Associated Trace Elements in Water Quality Studies" by Arthur J. Horowitz
• qw96.06 Interpretation of Data on Low-Level Concentrations of Pesticides in Water
• qw96.05 PROGRAMS AND PLANS--National Stream Quality Accounting Network (NASQAN): Fiscal Year 1996--October 1, 1995 to September 30,1996
• qw96.04 Overhead Rates in the National Water Quality Laboratory
• qw96.03 PERSONNEL--Janice R. Ward is new Assistant Chief
• qw96.02 PROGRAMS AND PLANS--National Hydrologic Benchmark Network: Fiscal Year 1996--October 1, 1995 to September 30, 1996
• qw96. Water-Quality Flood Plan
• qw95.02 Establishment of U.S. Geological Survey (USGS) laboratory for determination of chlorofluorocarbons (CFCs) in air and water samples
• qw94.16 New Preservation Techniques for Nutrient Samples
• qw94.15 Implementation of Joint District Reviews by the Office of Ground Water and the Office of Water Quality
• qw94.14 Use of National Water-Quality Assessment Program Protocols in District Projects
• qw94.13 Evaluation of the Churn Splitter for Inclusion in the Division Protocol for the Collection and Processing of Surface-Water Samples for Subsequent Determination of Trace Elements, Nutrients, and Major Ions in Filtered Water
• qw94.12 Changes in Schedule 172
• qw94.11 National Water Quality Laboratory Charge for Verification of Old Data
• qw94.10 Sample Collection, Analytical Methods, and Data Interpretation for Mercury Analyses
• qw94.09 Revision of New Division Protocol for Collecting and Processing Surface-Water Samples for Low-Level Inorganic Analyses
• qw94.08 Collection, Handling, and Analysis of Environmental Samples in Support of Regulatory Projects
• qw94.07 Findings of the Regulatory Program Work Group at the Water Quality Specialist Meeting February 3, 1993, in Albuquerque, New Mexico
• qw94.06 PROGRAM AND PLANS: New Custom Analysis Schedule (172) for Blanks
• qw94.02 EQUIPMENT--Discontinuance of field use of mercury liquid-in-glass thermometers
• qw93.13 PROGRAMS AND PLANS--Sources of Funding for the National Water Quality Laboratory
• qw93.12 Water Resources Division Nomenclature Conventions for Reporting Concentrations of Ammonium Ions and Ammonia in Natural Waters
• qw93.11 PROGRAMS AND PLANS: Implementation of the Protocol for Collecting and Processing Surface-Water Samples for Low-Level Inorganic Analyses
• qw93.10 PROGRAMS AND PLANS--(1) Disposal of petri dishes containing bacteria media, and (2) Aspergillus
• qw93.09 EQUIPMENT--Sample Splitting Devices
• qw93.07 PROGRAMS AND PLANS--Role of the U.S. Geological Survey in Programs and Projects Involving Regulation and Resource Management
• qw93.06 Trace-Element Contamination--Findings of Study on the Cleaning of Sampler Caps, Nozzles, Bottles, and Bags for Trace-Element Work at the Part-Per-Billion Level
• qw93.05 PROGRAMS AND PLANS--Evaluation of Capsule Filters
• qw93.04 ANALYTICAL METHODS--Discontinuation of the National Water Quality Laboratory determinations for "total" nitrite, "total" nitrite plus nitrate, "total" ammonia,and "total" orthophosphate (using the four-channel analyzer)
• qw93.03 PROGRAMS AND PLANS--Dissolved Trace-Element Data
• qw92.13 Trace Element Contamination: Findings of Studies on the Cleaning of Membrane Filters and Filtration Systems
• qw92.12 PROGRAMS AND PLANS--Trace Element Concentrations in Deionized Water Processed Through Selected Surface-Water Samplers: Study Results and Implications
• qw92.11 FIELD TECHNIQUES--Return of Spent Mercury and Dichromate Ampoules to the National Water Quality Laboratory
• qw92.10 PROGRAMS AND PLANS--Phosphorus Methods and the Quality of Phosphorus Data
• qw92.09 PROGRAMS AND PLANS--Immunoassay Field Screening Tests for Pesticides
• qw92.08 PROGRAMS AND PLANS--Nutrient Sample Size Reduction
• qw92.06 Report of Committee on Sample Shipping Integrity and Cost
• qw92.05 PROGRAMS AND PLANS--Quality of Existing Dissolved Trace-Element Data
• qw92.04 PUBLICATIONS--Revised Statement Regarding Dissolved Trace-Element Data Production
• qw92.02 FIELD TECHNIQUES--Field Preparation of Containers for Aqueous Samples
• qw92.01 Distilled/Deionized Water for District Operations
• qw91.10 PROGRAMS AND PLANS--Dissolved Trace Element Data
• qw91.09 REPORTS--"Filtration of Water-Sediment Samples for the Determination of Organic Compounds" by Mark W. Sandstrom
• qw91.08 PUBLICATIONS--"A Primer on Sediment-Trace Element Chemistry" (Second Edition),
• qw91.02 "Methods for Collection and Processing of Surface-Water and Bed-Material Samples for Physical and Chemical Analyses"
• qw91.01 PUBLICATIONS--"Methods for Collection and Analysis of Aquatic Biological and Microbiological Samples,"
• qw90.08 REPORTS--"A Laboratory and Field Evaluation of a Portable Immunoassay Test for Triazine Herbicides in Environmental Water Samples"
• qw90.07 SEDIMENT CHEMISTRY--Contamination from D-77 Samplers Equipped with Solenoid-Actuated Valves
• qw90.01 FIELD TECHNIQUES--Sample Preservation and Ampoule Disposal
• qw89.04 SEDIMENT CHEMISTRY--Analytical standards
• qw89.01 EQUIPMENT--pH Measurement of Low-Conductivity Waters
• qw88.07 Techniques of Water Resources Investigations (TWRI) Report, Book 5, Chapter A4, "Methods for Collection and Analysis of Aquatic"
• qw87.03 EQUIPMENT--pH Measurement in Low Conductivity Waters
• qw86.04 PUBLICATIONS--Methods for Determination of Inorganic Substances in Water and Fluvial Sediments, OFR 85-495
• qw86.03 PUBLICATIONS--Methods for Determination of Inorganic Substances in Water and Fluvial Sediments
• qw85.18 EQUIPMENT AND SUPPLIES--Sterilization of Microbiological Equipment
• qw85.17 WATER QUALITY--Compensation for Discharge in Detecting Trends in Water Quality Data
• qw85.10 WATER QUALITY--Measurement and Use of Diversity Indices for Biological Samples
• qw85.09 WATER QUALITY--Guidelines on Sampling Ground Water for Determination of Organic Compounds--With Comments on Analytical Protocols
• qw84.18 Water Quality--Preservation and Shipment of Water Samples for the Determination of Mercury.
• qw84.04 WATER QUALITY--Technical Information: Briefing Paper on Mercury
• qw84.02 PUBLICATIONS--Guidelines for Use of Water Quality Monitors
• qw83.13 PUBLICATIONS--"Quality Assurance Practices for the Chemical and Biological Analyses of Water and Fluvial Sediments," Techniques of
• qw82.06 PUBLICATIONS--Policy on Publishing Constituents with Both Field and Laboratory Values
• qw82.05 Provisional Method for Carbonate, Dissolved; Bicarbonate, Dissolved; and Carbonate Alkalinity, Dissolved; Electrometric Tritration,
• qw82.01 WATER QUALITY--Collecting Water Samples for Stable Isotope Analysis
• qw81.15 WATER QUALITY--New Tables of Dissolved Oxygen Saturation Values; Amendment of Quality of Water Technical Memorandum No. 81.11
• qw81.11 WATER QUALITY--New tables of dissolved oxygen saturation values
• qw81.08 WATER QUALITY--Electrodes for pH measurement in low-conductivity waters
• qw81.03 Manual Compositing Methods for Urban Storm-Runoff Samples
• qw81.02 EQUIPMENT AND SUPPLIES: Operation and availability--D-77 Water-Quality Sampler
• qw80.30 PUBLICATIONS: "Significance of bottom material data in evaluating water quality", by Herman R. Feltz
• qw80.28 WATER QUALITY--Analytical methods; Biochemical Oxygen Demand, Carbonaceous
• qw80.27 WATER QUALITY -- New Parameter Codes for pH, Alkalinity, Specific Conductance, and Carbonate/Bicarbonate
• qw80.18 Equipment and Supplies: Samplers--Problems with installation of plastic nozzles on samplers
• qw80.17 EQUIPMENT AND SUPPLIES--New sample splitter for water-quality samples
• qw80.11 SAFETY - WATER QUALITY: Technical Information--Briefing paper on "Water-borne diseases"
• qw80.07 EQUIPMENT & SUPPLIES--Bedload samplers; Use of Helley-Smith Sampler (Addendum to QW Branch Technical Memorandum No. 79.17)
• qw80.06 EQUIPMENT AND SUPPLIES--Samplers; color-coded nozzles for sediment samplers
• qw80.03 EQUIPMENT & SUPPLIES: Samplers--P-61 and P-63 Point-Integrating Sediment Samplers
• qw79.17 EQUIPMENT & SUPPLIES--Bedload samplers; use of Helley-Smith sampler
• qw79.16 PROGRAMS AND PLANS--Quality Assurance of Temperature Measurements
• qw79.15 PROGRAMS AND PLANS--Data Networks; unique number identification for federally funded stations
• qw79.10 Analytical Methods--Recommended procedures for calibrating dissolved oxygen meters
• qw79.08b EQUIPMENT AND SUPPLIES--Modification of the field calibration chamber for the YSI dissolved oxygen meter
• qw79.06 ORGANIZATION AND MANAGEMENT--Shipping regulations related to air shipment of dry ice
• qw78.13 WATER QUALITY: "Microbiological Monitoring for Water-Quality Assessment" by Phillip E. Greeson.
• qw78.06 WATER QUALITY: Field filtering of water samples for chemical analysis
• qw78.03 EQUIPMENT & SUPPLIES -- Churn Splitters
• qw77.10 QUALITY OF WATER BRANCH TECHNICAL MEMORANDUM NO. 77.10
• qw77.08 PUBLICATIONS: Open-File Report, Relationship of Sediment Discharge to Streamflow
• qw77.07 EQUIPMENT & SUPPLIES: Bedload Samplers--Guidelines for Application of the Helley-Smith Bedload Sampler
• qw77.06 QUALITY OF WATER BRANCH TECHNICAL MEMORANDUM NO 77.06
• qw77.03 EQUIPMENT & SUPPLIES: DH-75 Suspended-Sediment Sampler
• qw76.17 WATER QUALITY--Sampling mixtures of water and suspended sediment in streams
• qw76.04 EQUIPMENT AND SUPPLIES--Bedload Samplers
• qw76.03 EQUIPMENT AND SUPPLIES: Water-Quality Field Instrumentation
• qw75.25 WATER QUALITY--Sampling: Pesticides
• qw75.15 WATER-QUALITY DATA: Publication of Water Temperatures
• qw75.09 PROGRAMS AND PLANS--Acceptable methods for collection of water-quality data
• qw74.11 PROGRAMS AND PLANS--Data Networks, National stream quality accounting network
• qw73.16 PUBLICATIONS - "Sampling Procedures and Problems in Determining Pesticides in the Hydrologic Environment," by H. R. Feltz.;and J. K. Culbertson
• qw73.07 EQUIPMENT AND SUPPLIES--Teflon sediment sample splitters and plastic sieves
• qw73.05 PUBLICATIONS - Supplement to TWRI Book 5, Chapter A3
• qw72.13 PUBLICATION -- TWRI Book 3, Chapter C3, Computations of fluvial-sediment discharge, by George Porterfield
• qw72.04 PROGRAMS AND PLANS--Instructions for use of sediment samplers for the collection of samples to be analyzed for organic substances
• qw71.09 PROGRAMS AND PLANS--Guidelines for sampling and analysis of water-quality constituents associated with solids
• qw71.05 PROGRAMS AND PLANS - Sampling and analysis of water-quality constituents associated with suspended solids
• qw71.04 REPORTS -- Book 5 Chapter Al TWRI
• qw70.07 WATER QUALITY - Quality control of water analyses: Water-quality service units and mobile laboratories
• qw62.47 WATER QUALITY - Hardness of water
• qw61.40 PUBLICATIONS - Reference List No. 6
• qw61.39 RESEARCH - The role of limnology in quality of water research.
• qw61.35 PUBLICATIONS - Reference List. No. 5
• qw61.33 RESEARCH: Project Status Reports on Hydrologic Principles and Techniques
• qw61.32 RESEARCH: Project Status Reports on Hydrologic Principles and Techniques
• qw61.26 REPORTS AND STATISTICS - Quarterly report on activities in the Quality of Water Branch, July - September 1960.
• qw61.23 WATER, QUALITY - Policy statement on development, testing, approval, and publication of chemical and instrumental methods of water analysis.
• qw61.19 PROGRAMS AND PLANS - Revision of Public Water Supply Reports, WSP 1299 and 1300
• qw61.16 WATER, QUALITY - Cost of water analysis
• qw61.14 PUBLICATIONS: Reference List no. 4
• qw61.09 RESEARCH: Project Status Reports on Hydrologic Principles and Techniques
• qw61.01 PROGRAMS AND PLANS - Research Project: Analytical Methods of Water Chemistry
• qw60.43 PUBLICATIONS - Reference List No. 2
• qw60.41 REPORTS AND STATISTICS: Station Operation List - 1959 Water Year
• qw60.39 PUBLICATIONS - Preparation of bibliographies for publication in the formal series of Survey reports
• qw60.27 MEETINGS - Proceedings of Seminar on Minor Elements in Water
• qw60.25 Reports and statistics: Use of station numbers in annual reports
• qw60.22 PUBLICATIONS - General Branch policy on preparation, review, routing and approval of reports
• qw60.17 PROGRAMS AND PLANS - Revision of Public Water Supply Report, WSP 1299 and 1300
• qw60.13 PUBLICATIONS - Water temperature records - thermographs
• qw60.12 REPORTS AND STATISTICS - Scheduled dates for completion of annual water-supply papers
• qw60.00