| MethodName | MethodDescr | | Abraxis 520022 | Abraxis method No. 520022, Immunochromatographic Strip Test for the Detection of Microcystins and Nodularins in Recreational Water at 10 ppb |
| Anderson et al., 1996 | Assessment of sediment toxicity at the sediment-water interface. In: G.K. Ostrander (ed.) Techniques in Aquatic Toxicology. Lewis Publishers, Ann Arbor, MI |
| AOAC Method 996.06 | AOAC Offical Method 996.06 section AOAC 41.1.28A Fat (Total, Saturated, and Unsatruated) in Foods Hydrolytic Extraction Gas Chromatographic Method First Action 1996 Revised 2001 section AOAC 41.1.28A |
| APDC/DDDC | Dissolved Trace Elements organic extraction of Seawater samples (Bruland et al., 1985; Flegal et al. 1991) |
| ASCI_software_v2.x | Algae Stream Condition Index (ASCI) calculation software version 2.x for bioassessment stream health index based on benthic algae data |
| ASTM D1426-93B | Standard Test Methods for Ammonia Nitrogen In Water |
| ASTM D2216 | Standard Test Method for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass |
| ASTM D2974-07a | Standard Test Methods for Moisture, Ash, and Organic Matter of Peat and Other Organic Soils |
| ASTM D3590-89B-21.1 | Total Kjeldahl Nitrogen |
| ASTM D3977 | Standard Test Methods for Determining Sediment Concentration in Water Samples |
| ASTM D3977M | Modification of Standard Test Methods for Determining Sediment Concentration in Water Samples |
| ASTM D4129-82M | Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection |
| ASTM D422 | Standard Test Method for Particle-Size Analysis of Soils, Grain Size |
| ASTM D4464 | Standard Test Method for Particle Size Distribution of Catalytic Material by Laser Light Scattering, Grain Size |
| ASTM D4464M | Modification of Standard Test Method for Particle Size Distribution of Catalytic Material by Laser Light Scattering, Grain Size |
| ASTM D516-02 | Standard Test Method for Sulfate Ion in Water, 2002 |
| ASTM D516-90 | Standard Test Method for Sulfate Ion in Water, 2009 |
| ASTM D6503-99 | Standard Test Method for Enterococci in Water Using Enterolert |
| ASTM D6919-09 | Standard Test Method for Determination of Dissolved Alkali and Alkaline Earth Cations and Ammonium in Water and Wastewater by Ion Chromatography |
| ASTM D7065-17 | Standard Test Method for Determination of Nonylphenol, Bisphenol A, p-tert-Octylphenol, Nonylphenol Monoethoxylate and Nonylphenol Diethoxylate in Environmental Waters by Gas Chromatography Mass Spectrometry |
| ASTM D7348-08 | Standard Test Methods for Loss on Ignition (LOI) of Solid Combustion Residues |
| ASTM D7511 | Total Cyanide by Flow Injection and Amperometric Detection |
| ASTM E1109-19 | Standard Test Method for Determining the Bulk Density of Solid Waste Fractions |
| ASTM E1109-86 | Standard Test Method for Determining the Bulk Density of Solid Waste Fractions |
| ASTM E1218-0401 | Standard Test Methods for conducting static toxicity tests with microalgae |
| ASTM E1218-90 | Standard Guide for Conducting Static 96-h Toxicity Tests with Microalgae. |
| ASTM E1218-97a | Standard Guide for Conducting Static 96-h Toxicity Tests with Microalgae |
| ASTM E1367-99 | Standard Guide for Conducting 10-day Static Sediment Toxicity Tests with Marine and Estuarine Amphipods |
| ASTM E1415-91 | Standard Guide for Conducting Static Toxicity Tests with Lemna gibba G3 |
| AXYS CL-W-1668A Rev 01 | Analytical method for the determination of: 209 PCB Congeners by EPA Method 1668A |
| AXYS MLA-007 Rev 12 | Determination of Aroclors, PCBs, Pesticides, Toxaphene and Chlorobenzenes |
| AXYS MLA-007 Rev 13 | Determination of Aroclors, PCBs, Pesticides, Toxaphene and Chlorobenzenes, Rev 13 |
| AXYS MLA-010 Rev 10 | Analytical Method for the Determination of 209 PCBs by EPA method 1668A, EPA method 1668C or EPA Method CBC01.2 Rev. 10 |
| AXYS MLA-010 Rev 11 | High-resolution mass spectrometer (HRMS) coupled to a high-resolution gas chromatograph (HRGC) equipped with a SPB-Octyl chromatography column |
| AXYS MLA-010 Rev 12 | Analytical Method for the Determination of 209 PCBs by EPA method 1668A, EPA method 1668C or EPA Method CBC01.2 Hexane-Acetone Extractions, Rev. 12 |
| AXYS MLA-017 Rev 13 | Polychlorinated Dibenzodioxins and Dibenzofurans by EPA Method 1613B, EPA Method 8290/8290A, Env. Canada EPS 1/RM/19 or EPA Method DLM02.0 |
| AXYS MLA-017 Rev 19 | Polychlorinated Dibenzodioxins and Dibenzofurans by EPA Method 1613B, EPA Method 8290/8290A, Env. Canada EPS 1/RM/19 or EPA Method DLM02.0, Rev 19 |
| AXYS MLA-017 Rev 20 | High-resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS) |
| AXYS MLA-021 Rev 09 | Determination of Polycyclic Aromatic Hydrocarbons (PAH), Alkylated PAH and Alkanes in Sediment, Tissue, Water Hexane Extracts, XAD Resin and Filter Samples by GC/MS, Rev 9 |
| AXYS MLA-021 Rev 10 | PAHs and Alkylated PAHs in water, sediment and tissue. Gas chromatography/low resolution mass spectrometry (GC/LRMS) |
| AXYS MLA-021 Rev 11 | Determination of Polycyclic Aromatic Hydrocarbons (PAH), Alkylated PAH and Alkanes in Sediment, Tissue, Water Hexane Extracts, XAD Resin and Filter Samples by GC/MS, Rev 11 |
| AXYS MLA-021 Rev 12 | PAHs and Alkylated PAHs in water, sediemnt and tissue. Gas chromatography/low resolution mass spectrometry (GC/LRMS), Rev 12 |
| AXYS MLA-028 Rev 06 | Pesticides in water, sediment, tissue. High-resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS), Rev 06 |
| AXYS MLA-028 Rev 08 | Pesticides in water, sediment, tissue. High-resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS), Rev 8 |
| AXYS MLA-033 Rev 05 | Analytical Method for the Determination of Brominated Diphenyl Ethers (BDE) By EPA Method 1614, Rev 5 |
| AXYS MLA-033 Rev 06 | Analytical Method for the Determination of Brominated Diphenyl Ethers (BDE) By EPA Method 1614, Rev 6 |
| AXYS MLA-041 Rev 06 | Analytical Procedure for the Analysis of Perfluorinated Organic Compounds in Solid Samples by LC-MS/MS, Rev 6 |
| AXYS MLA-041 Rev 08 | Analytical Procedure for the Analysis of Perfluorinated Organic Compounds in Solid Samples by LC-MS/MS, Rev 8 |
| AXYS MLA-043 Rev 07 | Analytical Procedure for the Analysis of Perfluorinated Organic Compounds in Tissue Samples by LC-MS/MS, Rev 7 |
| AXYS MLA-046 Rev 04 | Analysis of Pyrethroids, Pyrethrins and Piperonyl Butoxide in Aqueous, Solid and XAD-2 Column Samples by Method MLA-046, Rev 4 |
| AXYS MLA-060 Rev 09 | Analytical Procedure for the Analysis of Perfluorinated Organic Compounds in Aqueous Samples by LC-MS/MS, Rev 9 |
| AXYS MLA-060 Rev 10 | Analytical Procedure for the Analysis of Perfluorinated Organic Compounds in Aqueous Samples and Solvent Extracts by LC-MS/MS, Rev 10 |
| Bae and Wuertz AEM 2009 | Discrimination of Viable and Dead Fecal Bacteriodales Bacteria by Quantitative PCR with Propidium Monoazide, Sungwoo Bae and Stefan Wuertz 2009 |
| BR SOP 0061 | BR SOP 0061 for the determination of Selenium speciation in water by HPLC-ICPMS |
| Buchanan 1984 | Sediment analysis, p.41-65 "Methods for the Study of Marine Benthos" ed by N.A.Holme, A.D.McIntyre. A Modification to the Plumb Method. |
| Calculated | Calculated value, when method of analysis is not provided and measured values are used to calculate concentration of a secondary parameter |
| California LUFT Manual - Gasoline | Analysis of Gasoline Range Organics in Water and Soils by GC/MS |
| CALTEST B-AFDW | CALTEST Method for gravametric determination of Periphyton by Ash Free Dry Weight |
| Campana, S.E., 2001 | Marginal Increment Analysis: Accuracy, precision and quality control in age determination, including a review of the use and abuse of age validation methods. J. Fish Biol. 59:197-242 |
| Cao,et al., 2015 | Yiping Cao, et al., "Droplet digital PCR for simultaneous quantification of general and human-associated fecal indicators for water quality assessment" |
| Capper, et al., 2005 | Capper, A., Tibbetts, I.R., ONeil, J.M., Shaw, G.R., 2005., "The fate of Lyngbya majuscula toxins in three potential consumers" J. Chem. Ecol. 31 (7), 15951606 |
| Carter2ed51.2 | Percent moisture (Maxxam Analytics SOP CAM SOP-00445, Reference: Carter 2nd ed 51.2 m) |
| CCAMP_SOP_Calculation_NH3U_N | CCAMP SOP for Calculating Unionized Ammonia |
| CCAMP_SOP_Calculation_Summed_Analytes | CCAMP SOP for Calculating Summations of Analytes |
| CDFA MRAM | CDFA Multiresidue Screen for Pyrethroid Pesticides with EMA modifications |
| Colilert | Colilert method performed at a time interval other than the 18 hour Colilert method describes |
| Colilert-18 | Colilert-18 Testing-EPA Approved |
| Cooley, et al., 2007 | Cooley, et al., Incidence and Tracking of Escherichia coli O157:H7 in a Major Produce Production Region in California, 2007 |
| CRD-C 403 | Determination of Sulfate Ion in soil and water |
| CSCI_software_v1.1.2 | California Stream Condition Index (CSCI) calculation software version 1.1.2 for bioassessment stream health index based on benthic macroinvertebrate data |
| CSCI_software_v1.x | California Stream Condition Index (CSCI) calculation software version 1.x for bioassessment stream health index based on benthic macroinvertebrate data |
| DFG SOP 103 | Determination of Mercury by FIMS in sed and tissue |
| Doane, 2003 | Spectrophotometric Determination of Nitrate with a Single Reagent (Doane, T.A. 2003) |
| DogBact_SIPP | SIPP SOP for QPCR Dog Bacteriodales |
| EcoAnalysts SOP Algae Biomass | EcoAnalysts SOP for Algae Biomass |
| ELISA Abraxis 52011ES | ELISA, Abraxis method No. 52011ES |
| ELISA Abraxis 522011 | ELISA, Abraxis method No. 522011 |
| ELISA Abraxis 52255B | ELISA, Abraxis method No. 52255B |
| ELISA SOP 3.3 | ELISA Diazinon and Chlorpyrifos analysis |
| EMA SOP RE512.01 Rev. 11/6/13 Water Modification | Environmental Micro Analysis SOP RE512.01 Rev. 11/6/13 LC/MS/MS Extended Screen Multiresidue Analysis ? Modification for Water |
| EMON-SM 05-003 | Analysis of Pyrethroids in Sediment Water. (CDFA, 2006) |
| EMON-SM 05-006 | Determination of Ethalfluralin, Trifluralin, Benfluralin, Prodiamine, Pendimethalin, Oxyfluorfen, and Oryzalin in Surface Water. (CDFA, 2007) |
| EMON-SM 05-012 | Determination of Phenoxy Herbicides in Surface water using Gas Chromatography/MSD. (CDFA, 2008) |
| EMON-SM 05-013 | Determination of Fipronil and Metabolites in Surface Water using Gas Chromatography/Mass spectrometry. (CDFA, 2008) |
| EMON-SM 11.3 | Determination of N- methylcarbamate Pesticides in Surface Water using High Performance Liquid Chromatography and Post-column Derivatization |
| EMON-SM 62.9 | Determination of Atrazine, Bromacil, Cyanazine, Diuron, Hexazinone, Metribuzin, Norflurazon, Prometon, Prometryn, Simazine, Deethyl Atrazine (DEA), Deisopropyl Atrazine (ACET), and Diamino Chlorotraizine (DACT) in Well Water and River Water By Liquid Chro |
| EMON-SM-05-022 | Determination of Pyrethroids in Sediment Water Using Triple Quadrupole GC/MS/MS |
| EMON-SM-05-023 | Determination of Bensulide and Imidacloprid in Surface Water |
| EMON-SM-05-037 | Determination of 47 pesticides in Surface Water by Liquid Chromatography Coupled to Linear Ion Trap Quadrupole |
| EMON-SM-46.0-MSD | Determination of Organophosphate Pesticides in Surface water using Gas Chromatography |
| EMON-SM-52-9 | Analysis of Pyrethroids in Sediment. (CDFA, 2005) |
| EMTS SOP TOC and TN in Ocean Sediments | Carbon and Total Nitrogen are determined by dynamic combustion on a Thermo Scientific Flash 2000 series Elemental Analyzer |
| EN-12260 | Water Quality - Determination of Nitrogen - Determination of Bound Nitrogen (TNb), following Oxidation to Nitrogen Oxides |
| Enterolert | Kit to detect enterococci in water using a nutrient indicator which fluoresces when metabolized; ASTM D6503-99 |
| EPA 110.2 | Color (Colorimetric-Platinum-Cobalt) by Spectrophotometer |
| EPA 120.1 | Specific Conductance using conductivity meter |
| EPA 130.1 | Hardness, Total (mg/l as CaC03), Colorimetric, Automated EDTA |
| EPA 130.2 | Hardness, Total (mg/L as CaCO3) (Titrimetric, EDTA) |
| EPA 150.1 | pH in Water by Electrometric Method |
| EPA 160.1 | Total Dissolved Solids (Gravimetric dried at 180 degrees C) |
| EPA 160.2 | Total Suspended Solids (Gravimetric dried at 103-105 degrees C) |
| EPA 160.2M | Modification of Total Suspended Solids (Gravimetric dried at 103-105 degrees C) |
| EPA 160.3 | Percent Moisture by Total Residue (Gravimetric, Dried 103-105 degrees C) |
| EPA 160.4 | Residue, Volatile (Gravimetric, Ignition at 550 degrees C) |
| EPA 1600 | Enterococci in Water by Membrane Filtration |
| EPA 1603 | Escherichia coli (E. coli) in Water by Membrane Filtration Using Modified membrane-Thermotolerant Escherichia coli Agar |
| EPA 1603M | Modification of Escherichia coli (E. coli) in Water by Membrane Filtration Using Modified membrane-Thermotolerant Escherichia coli Agar (Modified mTEC) |
| EPA 1604 | Total Coliforms and Escherichia coli in Water by Membrane Filtration Using a Simultaneous Detection Technique (MI Medium) |
| EPA 1613 | Tetra- through Octa-Chlorinated Dioxins and Furans by Isotope Dilution HRGC/HRMS |
| EPA 1613B | EPA 1613 Tetra- through Octa-Chlorinated Dioxins and Furans by Isotope Dilution HRGC/HRMS |
| EPA 1613BM | Modification of Tetra- through Octa-Chlorinated Dioxins and Furans by Isotope
DilutioHRGC/HRMS |
| EPA 1614M | Modified Brominated diphenyl ethers in water, soil, sediment, and tissues by HRGC/HRMS (May 2010) |
| EPA 1623 | Cryptosporidium and giardia by filtration/IMS/FA microscopy |
| EPA 1623M | Modification of Cryptosporidium and giardia by filtration/IMS/FA microscopy |
| EPA 1625M | Modification of Semivolatile Organic Compounds by Isotope Dilution GC/MS |
| EPA 1630 | Methyl Mercury in Water by Distillation, Aqueous Ethylation, Purge and Trap, and CVAFS |
| EPA 1630M | Modification of Methyl Mercury in Water by Distillation, Aqueous Ethylation, Purge and Trap, and CVAFS |
| EPA 1631 | Mercury in Water by Oxidation, Purge&Trap and Cold Vapor Atomic Fluorescence Spectrometry |
| EPA 1631B | Mercury in Water by Oxidation, Purge&Trap and Cold Vapor Atomic Fluorescence Spectrometry, Revision B |
| EPA 1631E | Mercury in Water by Oxidation, Purge&Trap and Cold Vapor Atomic Fluorescence Spectrometry, Revision E |
| EPA 1631EM | Modification of Mercury in Water by Oxidation, Purge&Trap and Cold Vapor Atomic Fluorescence Spectrometry, Revision E |
| EPA 1632AM | Modification of Chemical Speciation of Arsenic in Water and Tissue by Hydride Generation Quatrz Furnace Atomic Absorption Spectrometry |
| EPA 1633 | Analysis of Per- and Polyfluoroalkyl Substances (PFAS) in Aqueous, Solid, Biosolids, and Tissue Samples by LC-MS/MS |
| EPA 1638 | Determination of Trace Elements in Ambient Waters by ICPMS |
| EPA 1638M | Modification of Determination of Trace Elements in Ambient Waters by ICPMS |
| EPA 1640 | Determination of Trace Elements in Ambient Waters by On-Line Chelation Preconcentration and ICPMS |
| EPA 1660M | Modification of method for Pyrethroids and Pyrethrins |
| EPA 1664 | HEM; Oil and Grease & SGT-HEM; Non-Polar Material by Extraction and Gravimetry |
| EPA 1664A | N-Hexane Extractable Material (Oil and Grease) and Silica Gel Treated N-Hexane Extractable Material (Non-polar Material) by Extraction and Gravimetry |
| EPA 1664B | N-Hexane Extractable Material (Oil and Grease) and Silica Gel Treated N-Hexane Extractable Material (Non-polar Material) by Extraction and Gravimetry, Rev B |
| EPA 1668A | High-resolution mass spectrometer (HRMS) coupled to a high-resolution gas chromatograph (HRGC) |
| EPA 1668AM | High-resolution gas chromatograph coupled to a high resolution mass spectrometer (HRGC/HRMS). |
| EPA 1668C | Chlorinated Biphenyl Congeners in Water, Soil, Sediment, Biosolids, and Tissue by HRGC/HRMS |
| EPA 1668CM | Modification of Chlorinated Biphenyl Congeners in Water, Soil, Sediment, Biosolids, and Tissue by HRGC/HRMS |
| EPA 1680 | Fecal Coliforms in Sewage Sludge (Biosolids) by MultipleTube Fermentation using Lauryl Tryptose Broth (LTB) and EC Medium |
| EPA 1682 | Salmonella in Sewage Sludge (Biosolids) by Modified Semisolid Rappaport-Vassiliadis (MSRV) Medium July 2006 |
| EPA 1682M | Modification of Salmonella in Sewage Sludge (Biosolids) by Modified Semisolid Rappaport-Vassiliadis (MSRV) Medium July 2006 |
| EPA 1694M | Modification of Pharmaceuticals and Personal Care Products in Water, Soil, Sediment, and Biosolids by HPLC/MS/MS |
| EPA 1699 | Pesticides in Water, Soil, Sediment, Biosolids, and Tissue by HRGC/HRMS |
| EPA 180.1 | Hach 2100A Turbidity |
| EPA 200.2 | Sample Preparation Procedure for Spectrochemical Determination of Total Recoverable Elements, Rev 2.8 |
| EPA 200.7 | Determination of metals and trace elements in water, solids and biosolids by ICP-AES |
| EPA 200.8 | Determination of metals and trace elements in waters and wastes by ICP-MS |
| EPA 200.8M | Modification of Determination of Trace Elements in Waters and Wastes by ICPMS |
| EPA 200.9 | Trace Elements by Stabilized Temperature Graphite Furnace AA Spectrometry |
| EPA 206.2 | Arsenic (AA, Furnace Technique) |
| EPA 212.3 | Boron (Colorimetric, Curcumin) |
| EPA 218.6 | Determination of Dissolved Hexavalent Chromium in Drinking Water, Groundwater, and Industrial Wastewater Effluents by Ion Chromatography |
| EPA 218.6M | Modification of Determination of Mercury in Water by Cold Vapor Atomic Absorption Spectrometery |
| EPA 245.1 | Determination of Mercury in Water by Cold Vapor Atomic Absorption Spectrometery |
| EPA 245.5 | Mercury in Sediments and Tissue by Manual Cold Vapor Atomic Absorption (CVAA) |
| EPA 245.7 | Mercury in Water by Cold Vapor Atomic Fluorescence Spectrometry |
| EPA 300.0 | Inorganic Anions by Ion Chromatography |
| EPA 300.0M | Modification to Perchlorate by Ion Chromatography |
| EPA 300.1 | Rev 1.0 Determination of Inorganic Anions in Drinking Water by Ion Chromatography |
| EPA 310.1 | Alkalinity by Titration |
| EPA 310.1M | Modification of Alkalinity by Titration |
| EPA 310.2 | Alkalinity (Colorimetric, Automated, Methyl Orange) |
| EPA 314.0 | Determination of Perchlorate in Drinking Water by Ion Chromatography |
| EPA 331.0 | Perchlorate in water by LC/EMI/MS |
| EPA 331.0M | Modification of Perchlorate in water by LC/EMI/MS |
| EPA 335.2 | Cyanides, Amenable to Chlorination (Titrametric; Spectrophotometric) |
| EPA 335.4 | Determination of Total Cyanide by Semi-Automated Colorimetry |
| EPA 340.2 | Fluoride - Ion-Selective Electrode Method |
| EPA 350.1 | Determination of Ammonia-Nitrogen by Semi-Automated Colorimetry |
| EPA 350.1M | Modification of method for NH4-N |
| EPA 350.2 | Ammonia (Colormetric, Titrimetric, Potentiometric, Distillation procedure) |
| EPA 350.3 | Ammonia by Ion Selective Electrode |
| EPA 351.1 | Nitrogen, Kjeldahl, Total (Colorimetric, Automated Phenate) |
| EPA 351.2 | Total Kjeldahl Nitrogen (TKN) by Semi-Automated Block Digestion and Colorimetry |
| EPA 351.2M | Modification of method for TKN |
| EPA 351.3 | Total Kjeldahl Nitrogen; Colorimetric; Titrimetric; Potentiometric |
| EPA 351.4 | Total Kjeldahl Nitrogen; Potentiometric, Ion Selective Electrode |
| EPA 353.1 | Nitrate-Nitrite by Colorimetric, Automated Hydrazine Reduction |
| EPA 353.1M | Modification of method for NO3-N |
| EPA 353.2 | Nitrate+Nitrite as Nitrogen (Colorimetric, Automated, Cadmium Reduction) |
| EPA 353.3 | Nitrate/Nitrite as Nitrogen (Spectrophotometric, Cadmium Reduction) |
| EPA 353.4 | Determination of Nitrate and Nitrite in Estuarine and Coastal Waters by Gas Segmented Continuous Flow Colorimetric Analysis |
| EPA 354.1 | Nitrite as N by Spectrophotometry |
| EPA 3545_3640A_3620B | Multiple extraction methods for sediment organics |
| EPA 360.2 | Dissolved Oxygen (Winkler) |
| EPA 365.1 | Lachat's Method: Method for Phosphorous (Colorimetric, Automated, Ascorbic Acid) |
| EPA 365.1M | Modification of Lachat's Method: Method for Phosphorous (Colorimetric, Automated, Ascorbic Acid) |
| EPA 365.2 | Phosphorus All Forms (Colormetric, Acsorbic Acid, Single Reagant) |
| EPA 365.3 | Orthophosphate, Total Phosphate, all forms of phosphorus (Colormetric, Ascorbic Acid, Two Reagent) |
| EPA 365.3M | Modification of Orthophosphate, Total Phosphate, all forms of phosphorus (Colormetric, Ascorbic Acid, Two Reagent) |
| EPA 365.4 | Total Phosphorus (Colorimetric, Automated, Block Digester AA II) |
| EPA 365.5 | Determination of Orthophosphate in Estuarine and Coastal Waters by Automated Colorimetric Analysis |
| EPA 366.0 | Determination of Dissolved Silicate in Estuarine and Coastal Waters
by Gas Segmented Continuous Flow Colorimetric Analysis |
| EPA 376.2 | Sulfide (Colormetric, Methylene Blue) |
| EPA 405.1 | Biochemical Oxygen Demand (BOD) (5 days, 20 degrees C) |
| EPA 410.4 | Chemical Oxygen Demand (Colorimetric, Automated; Manual) |
| EPA 413.2 | Oil And Grease (Spectrophotometric, Infrared) |
| EPA 415.1 | Total Organic Carbon/Dissolved Organic Carbon (combustion or oxidation) in water |
| EPA 415.1M | Modification of Total Organic Carbon/Dissolved Organic Carbon (combustion or oxidation) in water |
| EPA 415.3 | Determination of Total Organic Carbon and Specific UV Absorbance at 254 nm in Source Water and Drinking Water. |
| EPA 415.3M | Modification of Determination of Total Organic Carbon and Specific UV Absorbance at 254 nm in Source Water and Drinking Water. |
| EPA 418.1 | Petroleum Hydrocarbons (Spectrophotometric, Infrared) |
| EPA 420.1 | Phenolics (Spectrophotometric, Manual 4-AAP with Distillation) |
| EPA 420.4 | Determination of total recoverable phenolics by semi-automated colorimetry |
| EPA 425.1 | Determination of surfactants, man-made surface active agents |
| EPA 440 | Elemental C and N by Combustion and Thermal Conductivity |
| EPA 445.0 | Chlorophyll by Fluorescence |
| EPA 445.0M | Modification of Chlorophyll a by Fluorescence |
| EPA 446.0 | In Vitro Determination of Chlorophylls a, b, c1 + c2 and Pheopigments in Marine And Freshwater Algae by Visible Spectrophotometry |
| EPA 504M | Modification of 1,2-Dibromoethane (EDB) and 1,2- Dibromo-3-Chloropropane (DBCP) in Water by Microextraction and Gas Chromatography |
| EPA 505 v2.1 | Analysis of Organohalide Pesticides and Commercial Polychlorinated Biphenyl (PCB) Products in Water by Microextraction and Gas Chromatography Revision 2.1 |
| EPA 507 | Determination of Nitrogen - and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector |
| EPA 508 | Determination of Chlorinated Pesticides in Water by Gas Chromatography with an Electron Capture Detector |
| EPA 515.3 | Determination of chlorinated acids in drinking water by liquid-liquid extraction, derivatization and gas chromatography with electron capture detection |
| EPA 515.4 | Determination of Chlorinated Acids in Drinking Water by Liquid-liquid Microextraction Derivatization and Fast Gas Chromatography With Electron Capture Detection REV1.0 |
| EPA 524.2 | Purgeable organic compounds in water by capillary column GC/MS |
| EPA 524M | Modification of the determination of 1,2,3-Trichloropropane in drinking water by purge and trap gas chromatography/mass spectrometry |
| EPA 525.2 | Determination of organic compounds in drinking water by liquid-solid extraction and capillary column gas chromatography/mass spectrometry |
| EPA 525.2M | Modification of Organic compounds in drinking water by liquid-solid extraction and capillary column gas chromatography/mass spectrometry |
| EPA 531.1 | Measurement of N-Methylcarbamoyloximes and N-Methylcarbamates in water by direct aqueous injection HPLC with post column dericatization |
| EPA 531.2 | Measurement of N-Methylcarbamoyloximes and N-Methylcarbamates in Water by Direct Aqueous Injection HPLC with Postcolumn Derivatization |
| EPA 532 | Determination of phenylurea compounds in drinking water by solid phase extraction and high performance liquid chromatography with UV detection |
| EPA 532M | Modification of determination of phenylurea compounds in drinking water by solid phase extration and high perfromance liquid chromatography with UV detection |
| EPA 537M | Modification of Determination of Selected Perfluorinated Alkyl Acids in Drinking Water by Solid Phase Extraction And Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS) |
| EPA 538 | Determination of Selected Organic Contaminants in Drinking Water by Direct Aqueous Injection-Liquid Chromatography/Tandem Mass Spectrometry (DAI-LC/MS/MS) |
| EPA 547 | Determination of Glyphosphate in drinking water by direct-aqueous injection, HPLC post column derivitization & fluorescence detection |
| EPA 547M | Modification of Determination of Glyphosphate in drinking water by direct-aqueous injection, HPLC post column derivitization & fluorescence detection |
| EPA 549.2 | Determination of Diquat and Paraquat in Drinking Water by Liquid-Solid Extraction and HPLC With Ultraviolet Detection |
| EPA 549.2M | Modification of Determination of Diquat and Paraquat in Drinking Water by Liquid-Solid Extraction and HPLC With Ultraviolet Detection |
| EPA 551.1 | Polycyclic Aromatic Hydrocarbons in Drinking Water by Liquid-Solid Extraction and HPLC with Coupled Ultraviolet and Fluorescence Detection. |
| EPA 600/4-90-027F | EPA 600/4-90-027F, EPA 1993: Acute Toxicity Test:Hyalella Azteca, Ceriodaphnia, Pimephales, Mysids, old reference |
| EPA 600/4-90-027FM | Modification of EPA 600/4-90-027F, EPA 1993: Acute Toxicity Test:Hyalella Azteca, Ceriodaphnia, Pimephales, Mysids, old reference |
| EPA 600/4-91-002 | EPA 600/4-91-002, EPA 1994: Freshwater Chronic Test: Ceriodaphnia, Pimephales, Selenastrum, old reference |
| EPA 600/4-91-002M | Modification of EPA 600/4-91-002, EPA 1994: Freshwater Chronic Test: Ceriodaphnia, Pimephales, Selenastrum, old reference |
| EPA 600/R-94-025 | EPA 600/R-94/025, EPA 2000:Estuarine and Marine Amphipod Toxicity Test:Eohaustorius estuarius sediment 10 day |
| EPA 600/R-94-134 | Determination of Asbestos Structures Over 10um in Length in Drinking Water; same as Method 100.2 |
| EPA 600/R-95-136 | EPA 600/R-95-136, EPA 1995: Marine Chronic Test: Atherinops, Mytilus, Strongylocentrotus (development & fertilization), Holmesimysis |
| EPA 600/R-95-136M | Modification of EPA 600/R-95-136, EPA 1995: Marine Chronic Test: Atherinops, Mytilus, Strongylocentrotus (development & fertilization), Holmesimysis |
| EPA 600/R-99-064 | EPA 600/R-99-064, EPA 2000: Methods for Measuring the Toxicity and Bioaccumulation of Sediment-associated Contaminants with Freshwater InvertebratesSecond Edition Hyalella sediment 10 day and 28 day and freshwater amphipods, cerio and hyalella |
| EPA 600/R-99-064M | Mod of EPA 600/R-99-064, EPA 2000: Methods for Measuring the Toxicity and Bioaccumulation of Sediment-associated Contaminants with Freshwater InvertebratesSecond Edition Hyalella sediment 10 day and 28 day and freshwater amphipods, cerio and hyalella |
| EPA 6010A | Metals by ICP |
| EPA 6010B | Metals by ICP - Inductively coupled plasma - atomic emission spectrometry |
| EPA 6020 | Metals by ICP-MS |
| EPA 6020AM | Modification of Metals by ICP-MS |
| EPA 6020BM | Modification of Metals by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) |
| EPA 604M | Phenols liquid-liquid extraction, modified by using liquid chromatography mass spectrometry instead of gas chromatography flame ionization detector |
| EPA 608 | Extraction of Organochlorine Pesticides and Polychlorinated Biphenyls from Wastewater |
| EPA 608.3 | Organochlorine Pesticides and PCBs by GC/HSD |
| EPA 608M | Modification of Organochlorine Pesticides and Polychlorinated Biphenyls |
| EPA 610 | Polynuclear Aromatic Hydrocarbons in Municipal and Industrial Wastewater |
| EPA 614 | Determination of Organophosphorus Pesticides in Municipal and Industrial Wastewater |
| EPA 615 | The Determination of Chlorinated Herbicides in Municipal and Industrial Wastewater |
| EPA 619 | Determination of Triazine Pesticides in Industrial and Municipal Wastewater |
| EPA 619M | Modification of Determination of Triazine Pesticides in Industrial and Municipal Wastewater |
| EPA 624 | VOAs and Semi-VOAs by Gas Chromatograph/Mass Spectrometer (GC/MS) |
| EPA 624.1 | Determination of purgeable organic pollutants by gas chromatography combined with mass spectrometry (GC/MS) |
| EPA 625 | Base/Neutrals and Acids |
| EPA 625.1 | Base/Neutrals and Acids by GC/MS |
| EPA 625.1_NCI | Base/Neutrals and Acids-NCI |
| EPA 625.1_SIM | Base/Neutrals and Acids by GC/MS and selected ion monitoring (SIM) |
| EPA 625.1M | Modification of Base/Neutrals and Acids |
| EPA 625.1M_MRM | Modification of Base/Neutrals and Acids and Multiple Reaction Mode |
| EPA 625.1M_NCI | Modification of Base/Neutrals and Acids-NCI |
| EPA 625_MRM | Base/Neutrals and Acids and Multiple Reaction Mode |
| EPA 625_SIM | Base/Neutrals and Acids and selected ion monitoring (SIM) |
| EPA 625M | Modification of Base/Neutrals and Acids |
| EPA 625M_SIM | Modification of Base/Neutrals and Acids and selected ion monitoring (SIM) |
| EPA 625M-NCI | Modification of Base/Neutrals and Acids-NCI |
| EPA 625-NCI | Base/Neutrals and Acids-NCI |
| EPA 630 | Determination of Dithiocarbamate Pesticids in Municipal and Industrial Wastewater |
| EPA 632 | Determination of Carbamate and Urea Pesticides in Industrial and Municipal Wastewater using liquid chromatography mass spectrometry |
| EPA 632M | Modification of Determination of Carbamate and Urea Pesticides in Industrial and Municipal Wastewater using liquid chromatography mass spectrometry |
| EPA 633 | The Determination of Organonitrogen Pesticides in Municipal and Industrial Wastewater |
| EPA 6850 | Determination of Perchlorate Using High Performance Liquid Chromatography/Mass Spectrometry (LC/MS) |
| EPA 7199 | Determination of Hexavalent Chronium in Drinking Water, Groundwater, and Industrial Wastewater Effluents by Ion Chromatography |
| EPA 7470A | Mercury in liquid water (Manual cold-vapor technique) |
| EPA 7471A | Mercury in solid or semisolid waste (manual cold-vapor technique) |
| EPA 7471B | Mercury in Solid or Semisolid Waste (Manual Cold-Vapor Technique) |
| EPA 7473 | Mercury in solids and solutions by Thermal Decomposition, Amalgamation, and Atomic Absorption Spectrophotemetry |
| EPA 7742 | Selenium - Automic Absorption, Gaseous Hydride |
| EPA 7742M | Modification of Selenium - Automic Absorption, Gaseous Hydride |
| EPA 8015B | Nonhalogenated Organics Using GC/FID |
| EPA 8015D | Nonhalogenated Organics Using GC/FID |
| EPA 8015M | Modification of Analysis of Diesel Range Organics using GC/MS |
| EPA 8081A | Organochlorine Pesticides by GC/ECD, Draft Update IVA |
| EPA 8081AM | Modification of Organochlorine Pesticides by GC/ECD, Draft Update IVA |
| EPA 8081B | Organochlorine Pesticides by GC/ECD, Draft Update IVB |
| EPA 8081BM | Modification of Organochlorine Pesticides by GC/ECD, Draft Update IVB |
| EPA 8082 | Polychlorinated Biphenyls (PCBs) by Gas Chromatography |
| EPA 8082A | Polychlorinated Biphenyls by Gas Chromatography |
| EPA 8082M | Modification of Polychlorinated Biphenyls as Congeners or Arclors by GC/ECD or GC/ELCD |
| EPA 8140A | Organophosphorus Pesticides capillary method by GC/FPD or GC/NPD |
| EPA 8141 | Organophosphorus Pesticides capillary method by GC/FPD or GC/NPD |
| EPA 8141A | Organophosphorus Pesticides capillary method by GC/FPD or GC/NPD |
| EPA 8141AM | Modification of Organophosphorus Pesticides capillary method by GC/FPD or GC/NPD |
| EPA 8141B | Organophosphorus Compounds by GC/FPD or GC/NPD |
| EPA 8151A | Chlorinated Herbicides by GC using Methylation or Pentafluorobenzylation Derivitization |
| EPA 8151AM | Modification of Chlorinated Herbicides by GC using Methylation or Pentafluorobenzylation Derivitization |
| EPA 821/R-02-012 | EPA 821/R-02-012, EPA 2002a: Acute Toxicity Test:Hyalella, Ceriodaphnia, Pimephales, Mysids, current reference |
| EPA 821/R-02-012M | Modification of EPA 821/R-02-012, EPA 2002a: Acute Toxicity Test:Hyalella, Ceriodaphnia, Pimephales, Mysids, current reference |
| EPA 821/R-02-013 | EPA 821/R-02-013, EPA 2002: Freshwater Chronic Test: Ceriodaphnia, Pimephales, Selenastrum, current reference |
| EPA 821/R-02-013M | Modification of EPA 821/R-02-013, EPA 2002: Freshwater Chronic Test: Ceriodaphnia, Pimephales, Selenastrum, current reference |
| EPA 821/R-02-014 | EPA-821-R-02-014, EPA 2002; Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Water to Marine and Estuarine Organisms; (3 rd Edition) |
| EPA 821/R-91-100 | Determination of acid volatile sulfide and selected simultaneously extractable metals in sediment |
| EPA 8260 | Volatile Organic Compounds by GC/MS |
| EPA 8260B | Volatile Organic Compounds by GC/MS, Update B |
| EPA 8260BM | Modification of Volatile Organic Compounds by GC/MS, Update B |
| EPA 8270C | Semivolatile Organic Compounds by GC/MS |
| EPA 8270C SIM | Semivolatile Organic Compounds by GC/MS with selected ion monitoring |
| EPA 8270C_NCI | Semivolatile Organic Compounds by GC/MS with negative chemical ionization |
| EPA 8270CM | Modification of Semivolatile Organic Compounds by GC/MS |
| EPA 8270D | Semi-Volatile Organic Compounds by GC/MS Triple Quad |
| EPA 8270D_MRM | Semivolativle Organic Compounds by GC/MS and Multiple Reaction Mode |
| EPA 8270D_NCI | Semivolatile Organic Compounds by GC/MS with negative chemical ionization Final Update VB |
| EPA 8270E | Semivolatile Organic Compounds by Gas Chromatography/Mass Spectrometry |
| EPA 8270E_NCI | Semivolatile Organic Compounds by Gas Chromatography/Mass Spectrometry (GC-MS) with negative chemical ionization |
| EPA 8270M_NCI | Modification of Semivolatile Organic Compounds by GC/MS with negative chemical ionization |
| EPA 8270M_PAH | Modification Semi-Volatile Organic Compounds by GC/MS, with surrogates and internal standards substituted that are optimized for PAH target analytes |
| EPA 8290 | Polychlorinated Dibenzodioxins (PCDDs) and Polycholorinated Dibenzofurans (PCDFs) by High-Resolution Gas Chromatography/High-Resolution Mass Spectrometry (HRGC/HRMS) |
| EPA 8290A | Polychlorinated Dibenzodioxins (PCDDs) and Polychlorinated Dibenzofurans (PCDFs) by High-Resolution Gas Chromatography/High Resolution Mass Spectrometry (HRGC/HRMS) |
| EPA 8310 | Polynuclear Aromatic Hydrocarbon determination by HPLC |
| EPA 8310M | Modification of Polynuclear Aromatic Hydrocarbon determination by HPLC |
| EPA 8318 | Methylcarbamates by High Performance Liquid Chromatography (HPLC) |
| EPA 8321A | Solvent-Extractable Nonvolatile Compounds by High-Performance Liquid Chromatography/Thermospray/Mass Spectrometry (HPLC/TS/MS) or Ultraviolet (UV) Detection |
| EPA 8321AM | Modification of SOLVENT-EXTRACTABLE NONVOLATILE COMPOUNDS BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY/THERMOSPRAY/MASS SPECTROMETRY (HPLC/TS/MS) OR ULTRAVIOLET (UV) DETECTION |
| EPA 8323M | Modification of Determination of Organotins by Micor-Liquid Chromatography-Electrospray Ion Trap MS, sediment and tissue |
| EPA 8330 | Nitroaromatics, Nitramines, and Nitrate Esters By High Performance Liquid Chromatography (HPLC) |
| EPA 900.0 | Gross Alpha and Gross Beta Radioactivity in Drinking Water |
| EPA 903.1 | Radium-226 in Drinking Water Radon Emanation Technique |
| EPA 9030B | Acid-Soluble and Acid-Insoluble Sulfides: Distillation |
| EPA 9034 | Titrimetric Procedure for Acid-Soluble and Acid-Insoluble Sulfides |
| EPA 9038 | Sulfate (Turbidimetric) |
| EPA 9040B | pH Electrometric Measurement |
| EPA 905.0 | Radioactive Strontium in Drinking Water |
| EPA 906.0 | Tritium in Drinking Water |
| EPA 9060 | Total Organic Carbon in sediments |
| EPA 9060A | Total Organic Carbon in sediments, Update A |
| EPA 9060AM | Modified Total Organic Carbon in sediments, Update A |
| EPA 9060M | Modified Total Organic Carbon in sediments |
| EPA 9071B | n-Hexane Extractable Material (HEM) for Sludge, Sediment, and Solid Samples |
| EPA Method BM | Modification of Bacteroidales in Water by TaqMan Quantitative Polymerase Chain Reaction (qPCR) Assay June 2010 |
| EPA Ra-05 | Radiochemical precipitation; count for beta in a low background proportional counter |
| ESS 150.1 | Chlorophyll, spectophotometric method |
| EuroFins L304 | Direct Analysis of Selected Pesticides by LC/ESI/MS/MS |
| EuroFins L306 | Direct Analysis of Selected Turfgrass Pesticides by LC/MS/MS |
| EuroFins S150 | Analysis of Turf Grass Semivolatile Organic Compounds by Solid Phase Extraction and Capillary Column Gas Chromatography/Mass Spectrometry |
| FDA 99D-4488 and 4489 | 99D-4488 Reducing microbial food safety hazards for sprouted seeds and 99D-4489 Sampling & microbial testing of spent irrigation water |
| Feng, et al., 2018 | Feng, Bootsma, McLellan, 2018, "Human-Associated Lachnospiraceae Genetic Markers Improve Detection of Fecal Pollution Sources in Urban Waters", Applied and Environmental Microbiology 84.14: e00309-18 |
| FGS-010 | Frontier Geosciences: KOH/Methanol Digestion of Solids for Methyl Mercury
Digestion of Solids for Methyl Mercury
Frontier Geosciences: Digestion of Solids for Methyl Mercury |
| FGS-013.2 | Frontier Geosciences: Distillation of Aqueous Samples for Methyl Mercury |
| FGS-055.2 | Frontier Geosciences: Determination of Selenium Species in Water by Hydride Generation, Atomic Fluorescence Spectrometry |
| FieldMeasure | Numeric measurements made in the field with a piece of equipment |
| FieldObservations | Categorical descriptions made in the field by observation |
| FR 8507 | Nitrite Federal Register, 44(85) 25505 |
| Gull2TaqMan_SIPP | SIPP SOP for QPCR Gull-2 assay |
| Hach Method 10071 | Hach Method 10071 Total Nitrogen Test and Tube Persulfate Digestion Method |
| Hach Method 10206 | Hach Method 10206 Nitrate as Nitrogen |
| Hach Method 8038 | Hach Method 8038 Ammonia as Nitrogen |
| Hach Method 8048 | Hach Method 8048 Orthophosphate (SRP) |
| Hach Method 8190 | Hach Method 8190 Total Phosphorus |
| Hach Method 8507 | Hach Method 8507 Nitrite as Nitrogen |
| HF183Taqman_SIPP | SIPP SOP for QPCR Taqman HF Human Bacteriodales |
| Hook | Hook and Line |
| HumM2_SIPP | SIPP SOP QPCR Human Bacteriodales -2 assay |
| ICR | ICR method for cryptosporidium and giardia by filtration, flotation, and immunofluorescence microscopy |
| JACR97_3247-3272 | Chemical Reviews_used by DFG-WPCL 1997, 97,3247-3272 Institute of Applied physical chemistry, Research center GmbH, Germany |
| KahnM | Determination of Total Organic Carbon in Sediment, modification Hedges and Stern 1984 acidification hydrochloric acid |
| Krone, et al., 1989 | Cheryl A. Krone, et al., " A Method for Analysis of Butyltin Species and Measurement of Butyltins in Sediment and English Sole Livers from Puget Sound, Marine Environmental Reasearch, Volume 27, Issue 1, 1989, Pages 1-18 |
| Lachat 31-107-04-1-C | Lachat 31-107-04-1-C Nitrate as Nitrogen |
| Mazor, et al., 2015 | Mazor, R.D., P.R. Ode, A.C. Rehn, M. Engeln, T. Boyle, E. Fintel, S. Verbrugge, and C. Yang. 2015. The California Stream Condition Index (CSCI): Interim instructions for calculating scores using GIS and R. SCCWRP Tech Report 883. SWAMP-SOP-2015-0004 |
| MBARI TRNo90-2 | MBARI Procedures for Automated Nutrient Analyses Using a Modified Alpkem Series 300 Rapid Flow Analyzer, Tech. Rpt. 90-2, rev. 10/90 |
| MBAS SOP SM 4500 NH3 BC | MBAS SOP for Ammonia-Nitrogen |
| MCA 1.0 | Penoxsulam by HPLC |
| Mekebri, et al., 2009 | Mekebri, et al., Method Validation of Microcystins in Water and Tissue by Enhanced Liquid Chromatography Tandem Mass Spectrometry, 2009 |
| METH010.00 | Analysis of Whole Sample Suspended Sediments in Water, CDFA |
| METH011.00 | Dissolved Organic Carbon, BOG/USGS |
| METH013.00 | Sediment TOC analysis using Shimadzu TOC-VCSN and SSM-5000A, CDFA |
| MPSL-108v2 | Total Suspended Solids and Suspended Sediment Concentration Dried at 103-105C, and Volatile Solids Ignited at 550C (ASTM D-3977, SM 2540D and E), Revision 2 |
| MPSL-114 | Determination of Ash Free Dry Mass in Periphyton |
| MPSL-115 | Benthic Chlorophyll a in Marine and Fresh Water by Fluorescence |
| Mulvenna and Savidge, 1992 | Mulvenna, P. F. and Savidge, G., A Modified Manual Method For the Determination of Urea in Seawater using Diacetylmonoxime Reagent, Estuarine, Coastal and Shelf Science (1992) 34,429-438 |
| NCL ME 272 | Nonylphenols by reversed phase HPLC using UV detection |
| NCL ME 277 | Analytical Methodology for the analysis of Fluridone in Water |
| NCL ME 299 | Aminopyralid by HPLC/MS/MS |
| NCL ME 321 | Solid Phase Extraction of Assorted Pesticides in Water by HPLC/MS/MS |
| NCL ME 326 | Aquatic Herbicides in Water by LC-MS-MS |
| NCL ME 340 | Assorted Pesticides in Water by LC/MS/MS |
| NCL ME 342 | Neonicotinoids and other Pesticides in Water by LC/MS/MS |
| Neutral Buoyant Object | Neutral Buoyant Object method used for measuring stream discharge |
| Newman, et al., 1988 | J.W. Newman, et al., "Quantitation of Aroclors Using Congener-Specific Results," Env. Tox. and Chem., Vol.17, #11, pgs 2159-2167, 1988 |
| NOAALipids1993 | Determination of Percent Lipid in Tissue (NOAA Sampling and Analytical Methods of the National Status and Trends Program, Mussel Watch Project: 1993-1996 Update) |
| None | No Method |
| Not Recorded | Not recorded |
| Not Recorded_10day | Method not recorded for 10 day BOD analysis |
| Not Recorded_5day | Method not recorded for 5 day BOD analysis |
| ObservedFieldMeasure | Numeric Measurements made in the field by observation |
| PHAB_software_v0.x | Index of Physical-habitat Integrity (IPI) calculation software version 0.x for bioassessment stream health index based on physical habitat data |
| Physis SOP 5310B-Direct Method | Physis SOP 5310B-Direct Method for the Determination of Total Nitrogen |
| Plumb, 1981, AVS | Plumb method for acid volatile sulfides (AVS) described in Plumb 1981 |
| Plumb, 1981, GS | Plumb method for grainsize described in Plumb 1981 |
| QC 10107041A | Determination of Nitrate/Nitrite in Surface and Wastewaters by Flow Injection Analysis; low-flow method, Lachat QuikChem |
| QC 10107041B | Nitrate/Nitrite: Lachat QuikChem Flow Injection Analyzer Method |
| QC 10107044B | Total Nitrogen: Lachat QuikChem Flow Injection Analyzer Method by persulfate digestion |
| QC 10107061G | Nitrogen (Ammonia): Lachat QuikChem Flow Injection Analyzer Method |
| QC 10107062E | Total Kjeldahl Nitrogen by Lachat QuikChem Flow Injection Analyzer Method |
| QC 10107063B | Determination of Ammonia in Surface Water and Wastewater by Flow Injection Analysis by Scott Stieg, 1/26/99, Zellweger Analytics Inc., Lachat Instrument Division, Milwaukee, WI. |
| QC 10107063BM | Modification of Determination of Ammonia in Surface Water and Wastewater by Flow Injection Analysis by Scott Stieg, 1/26/99, Zellweger Analytics Inc., Lachat Instrument Division, Milwaukee, WI. |
| QC 10114271A | Dissolved Silica: Lachat QuikChem Flow Injection Analyzer Method |
| QC 10115011A | Determination of Orthophosphate by Discrete Analysis. Molybdate based method. Lachat QuikChem |
| QC 10115011AM | Modification of Determination of Orthophosphate by Discrete Analysis. Molybdate based method. Lachat QuikChem |
| QC 10115011D | Total Phosphate as P: Lachat QuikChem Flow Injection Analyzer Method by Kjeldahl digestion |
| QC 10115011M | Modification of Orthophosphate Lachat QuikChem Flow Injection Analyzer Method |
| QC 10115011PM | Modification of Orthophosphate; Molybdate based method; Low-flow method Lachat QuikChem |
| QC 10115012B | Total Phosphate as P: Lachat QuikChem Flow Injection Analyzer Method by persulfate digestion |
| QC 10301311B | Hardness Lachat QuikChem Flow Injection Analysis Colorimetry |
| QC 10303311A | Alkalinity Lachat QuikChem Flow Injection Analyzer Method |
| QC 10308001A | Color by Lachet QuikChem Flow Injection Analysis |
| QC 31114271D | Silicate; Molybdate reactive; Brackish or seawater matrix Lachat QuikChem |
| QuantiPlate EP 022 A | Envirologix QuantiPlate Kit for Microcystins EP 022 |
| Riparian RAM v1.5 | Riparian Rapid Assessment Method for California v 1.5. Central Coast Wetlands Group, 2018 |
| Riparian RAM v2.2 | Riparian Rapid Assessment Method for California v 2.2. Central Coast Wetlands Group, 2022 |
| Riparian RAM v3.0 | Riparian Rapid Assessment Method for California v 3.0. Central Coast Wetlands Group, 2023 |
| Robinson, 2005 | Robinson,2005. Draft Residue analytical method for the determination of residues of bifenthrin, cypermethrin, cyfluthrin, deltamethrin, esfenvalerate, fenpropathrin, lambda-cyhalothrin and permethrin in sediment. Syngenta Crop Protection, Greensboro, NC |
| RSIL Lab Code 2900 for Nitrate Isotopes | Methods of the Reston Stable Isotope Laboratory: Section C: Chapter 17: Determination of the d15N and d18O Isotopes of Nitrate in Water; RSIL Lab Code 2900 |
| Sartory and Grobbelaar, 1984 | ethanol extraction and fluoromtery - Sartory D.P. & Grobbelaar J.U. (1984), Extraction of chlorophyll-a from fresh-water phytoplankton for spectrophotometric analyses. Hydrobiologia, 114, 177187 |
| SFL SOP 6850 | Draft method of Determination of Perchlorate Using High Performance Liquid Chromatography/Mass Spectrometry (LC/MS) |
| SFSU-RTC BLAA MNo G-175-96 | AutoAnalyzer Method No. G-175-96 Phosphate in Water and Seawater. Bran Luebbe, Inc. Buffalo Grove, IL. SFSU-RCT procedures for Bran Luebbe AutoAnalyzer Applications. 1999. |
| SFSU-RTC BLAA MNo G-177-96 | AutoAnalyzer Method No. G-177-96 Silicate in Water and Seawater. Bran Luebbe, Inc. Buffalo Grove, IL. SFSU-RCT procedures for Bran Luebbe AutoAnalyzer Applications. 1999. |
| SGS AXYS MLA-110 Rev 02 | Analytical Procedure for the Analysis of Per- and Polyfluoroalkyl Substances (PFAS) in Aqueous Samples, Solids, Tissues, AFFF Products and Solvent Extracts by LC-MS/MS, Rev 02 |
| SGS AXYS MLA-210 | Analytical Method for the Determination of 209 PCB Congeners by GC-MS/MS |
| SGS AXYS MLA-210 Rev 01 | Analytical Method for the Determination of 209 PCB Congeners by GC-MS/MS, Rev 01 |
| SGS AXYS MLA-217 Rev 01 | Analytical Method for the Determination of Polychlorinated Dibenzodioxins and Dibenzofurans by EPA Method Draft ATM-16130 10 (GC-MS/MS), Rev 01 |
| SGS AXYS MLA-228 | Analytical Procedures for Organochlorine Pesticides by Isotope Dilution GC-MS/MS |
| SGS AXYS MLA-228 Rev 01 | Analytical Procedures for Organochlorine Pesticides by Isotope Dilution GC-MS/MS, Rev 01 |
| Sharp, et al., 1995 | Sharp, J. H., R. Benner, L. Bennett, C. A. Carlson, S. E. Fitzwater, E. T. Peltzer, and L. M. Tupas. 1995. Analysis of dissolved organic carbon in seawater: the JGOFS EqPac methods comparison. Marine Chemistry 48:91-108. |
| Sharp, et al., 2004 | J.H. Sharp, et al., "A direct instrument comparison for measurement of total dissolved nitrogen in seawater", Marine Chemistry, Vol. 84, pgs 181-193, 2004 |
| SIU_SOP-5.3_2007 | SOP 5.3 - STANDARD OPERATING PROCEDURE FOR ANALYSIS OF PESTICIDES BY GC-ECD, Lydy laboratory: Southern Illinois University, November 17,2007 |
| SM 10200 H | Standard Methods for the Examination of Water & Wastewater, 10200 Plankton, Section H Chlorophyll (2011) |
| SM 10200 H-2ab | Spectrophotometric determination of Pheophytin a and Spectrophotometric determination of Chlorophyll a in the presence of Pheophytin a |
| SM 10200 H-2b | Spectrophotometric determination of Chlorophyll a in the presence of Pheophytin a |
| SM 10200 I-4 | Determination of Biomass by Displacement Volume |
| SM 10300 C | Periphyton; Sample Analysis |
| SM 10300 CD | Periphyton; Sample Analysis and Primary Productivity |
| SM 2120 B | Color by visual comparison |
| SM 2120 BM | Modification of Color by automated colorimetric method equivalent to the visual comparison method, SM 2120B |
| SM 2120 C | Color, Spectrophotometric Method |
| SM 2130 B | Turbidity analysis by Nephelometric method |
| SM 2150 B | Threshold Odor Test |
| SM 2320 B | Alkalinity by titration |
| SM 2320 B v21,22 | Alkalinity by titration, SM Edition 21 and 22 |
| SM 2340 B | Hardness by calculation |
| SM 2340 C | Hardness by EDTA titrimetric method |
| SM 2340 C v20 | Hardness by EDTA titrimetric method, SM Edition 20 |
| SM 2510 B | Specific Conductance using electrode |
| SM 2510 B-1997 | Conductivity using electrode, Standard Methods, revision 1997 |
| SM 2520B | Electrical Conductivity |
| SM 2540 B | Total Solids dried at 103-105 degrees C |
| SM 2540 BM | Modification of Total Solids dried at 103-105 degrees C |
| SM 2540 C | TDS dried at 180 degrees C |
| SM 2540 C v20 | Total Dissolved Solids dried at 180 degrees C SM Edition 20 |
| SM 2540 C/E | TDS dried at 180 degrees C and Fixed and Volatile Solids Ignited at 550 degrees C |
| SM 2540 D | Total Suspended Solids dried at 103-105 degrees C |
| SM 2540 D v20 | Total Suspended Solids dried at 103-105 degrees C SM Edition 20 |
| SM 2540 D/E | Total Suspended Solids dried at 103-105 degrees C and Fixed and Volatile Solids Ignited at 550 degrees C |
| SM 2540 DM | Modification of Total Suspended Solids dried at 103-105 degrees C |
| SM 2540 E | Fixed and Volatile Solids Ignited at 550 degrees C |
| SM 2540 F | Settleable Solids |
| SM 2540 G | Total, Fixed, and Volatile Solids in Solid & Semisolid Samples v.21 |
| SM 2550 | Temperature |
| SM 2560 D | Particle size analysis using Laser Multi-angle Light Scattering |
| SM 2560 D v20,21 | Particle size analysis using Laser Multi-angle Light Scattering, SM Edition 20 and 21 |
| SM 3111 B | Metals by Flame Atomic Absorption Spectrometry, Rev. B |
| SM 3112 B | Metals in Water by CV-AAS |
| SM 3113 B | Metals by Electrothermal Atomic Absorption Spectrometry, Rev. B |
| SM 3113 B v21 | Determination of metals by electrothermal atomic absorption spectrometry v.21 |
| SM 3114 B | Arsenic and Selenium by Manual Hydride Generation/Atomic Absorption Spectrometric Method |
| SM 3120 B | Metals by plasma emission, ICP method |
| SM 3500Al-EM | Modification of Aluminum: Eriochrome Cyanine R Method |
| SM 3500-Cr B | Hexavalent chromium determination by colorimetrical reaction with in an acid solution |
| SM 3500-Cr D | Hexavalent Chromium by spectrophotometric Analysis |
| SM 3500-Fe DM | Iron, Colormetric method from 18th edition of Standard Methods |
| SM 3500-Se C | Examination of Water and Wastewater, Colorimetric Method |
| SM 4110 B | Inorganic Anions by Ion Chromatography, Determination of Anions by Ion Chromatography |
| SM 418 D v16 | Determination of nitrate (high range) by Chromotropic acid method, SM Edition 16 |
| SM 4500 D | Industry determined Sulfide |
| SM 4500 N org B v20 | Nitrogen (organic) by Macro-Kjeldahl Method: Determination of Kjeldahl N (organic & ammonia nitrogen) on samples with either low or high concentrations of organic nitrogen, SM Edition 20 |
| SM 4500-B B | Boron: Curcumin Method |
| SM 4500-B B v20 | Boron: Curcumin Method, SM Edition 20 |
| SM 4500-Cl C | Residual Chlorine by Iodometric Method II |
| SM 4500-Cl G | Residiual Chlorine, DPD Colorimetric Method |
| SM 4500-CN E | Cyanide by Colorimetric Method |
| SM 4500-CN E v21 | Cyanide by Colorimetric Method, SM Edition 21 |
| SM 4500-F C | Fluoride - Ion-Selective Electrode Method |
| SM 4500-H+ | Determination of pH value in Examination of Water and Wastewater |
| SM 4500-H+ B | pH: Electrometric Method |
| SM 4500-H+ BM | Modification of pH: Electrometric Method |
| SM 4500-N B | In-Line UV/Persulfate Digestion and Oxidation with Flow Injection Analysis for Nitrogen compounds |
| SM 4500-N C | Nitrogen: Persulfate Method |
| SM 4500-N C/NH3 E | Nitrogen Persulfate Method, Nitrogen (Ammonia) Ammonia-Selective Electrode Method Using Known Addition |
| SM 4500-N CM v21 | Modification of Nitrogen: Persulfate Method, Method Ed 21 |
| SM 4500-N D | Conductimetric Determination of Inorganic Nitrogen |
| SM 4500-N org | Nitrogen (organic) |
| SM 4500-N org B | Nitrogen (organic) by Macro Kjeldahl Method |
| SM 4500-N org C | Nitrogen (organic) by SemiMicro Kjeldahl Method: Determination of Kjeldahl N (organic & ammonia nitrogen) on samples with high conc of org nitrogen |
| SM 4500-N org C/SM 4500-NH3 BC v22 | Nitrogen (organic) by SemiMicro Kjeldahl Method: Determination of Kjeldahl N (organic & ammonia nitrogen) on samples with high conc of org nitrogen/Ammonia as Nitrogen: Distillation and Titration, SM Edition 22 |
| SM 4500-N org D v22 | Nitrogen (organic) by Block Digestion and Flow Injection Analysis, SM Edition 22 |
| SM 4500-N org D v23 | Nitrogen (organic) by Block Digestion and Flow Injection Analysis, SM Edition 23 |
| SM 4500-NH3 B,C v19 | Ammonia as Nitrogen: Preliminary Distillation Step and Titrimetric Method, SM Edition 19 |
| SM 4500-NH3 B/C | Ammonia Distillation and Titration combination of methods B & C |
| SM 4500-NH3 BC v20 | Ammonia as Nitrogen: distillation and titration |
| SM 4500-NH3 BC v20,21 | Ammonia as Nitrogen: distillation and titration |
| SM 4500-NH3 BC v22 | Ammonia as Nitrogen: Distillation and Titration, SM Edition 22 |
| SM 4500-NH3 C v18 | Ammonia by Colorimetric Method, Nesserlization (TKN too) |
| SM 4500-NH3 C v20 | Determination of low concentrations of ammonia by titration, SM Edition 20 |
| SM 4500-NH3 D | Ammonia by Ion-selective electrode method |
| SM 4500-NH3 D v18,19 | Nitrogen (Ammonia): Ammonia-Selective Electrode Method, SM Edition 18 and 19 |
| SM 4500-NH3 D v20,21 | Nitrogen (Ammonia): Ammonia-Selective Electrode Method, SM Edition 20 and 21 |
| SM 4500-NH3 DM | Modification of Nitrogen (Ammonia) Phenate Method |
| SM 4500-NH3 E | Nitrogen (Ammonia) Selective Electrode Method Using Known Addition |
| SM 4500-NH3 F | Nitrogen (Ammonia): Ammonia-Selective Electrode Method |
| SM 4500-NH3 F v20,21 | Nitrogen (Ammonia) Phenate Method, SM Edition 20 and 21 |
| SM 4500-NH3 G | Ammonia as Nitrogen: Automated Phenate Method, SM |
| SM 4500-NH3 G v19,20 | Ammonia as Nitrogen: Automated Phenate Method, SM Edition 19 and 20 |
| SM 4500-NH3 G v22 | Ammonia as Nitrogen: Automated Phenate Method (Determination of low level concentrations), SM Edition 22 |
| SM 4500-NH3 H | Ammonia as Nitrogen: Automated Phenate Method |
| SM 4500-NH3 H v21 | Nitrogen (Ammonia): Flow Injection Analysis Method Ed 21 |
| SM 4500-NO2 B | Nitrite as Nitrogen: Colorimetric Method |
| SM 4500-NO2 B v20 | Nitrite as Nitrogen: Colorimetric Method SM Edition 20 |
| SM 4500-NO2 B v21,22 | Nitrite as Nitrogen: Colorimetric Method, SM Edition 21 and 22 |
| SM 4500-NO2 BM | Modification of Nitrogen (Nitrite) Colormetric Method |
| SM 4500-NO3 D v20 | Nitrogen (Nitrate): Electrode Method, Method Ed 20 |
| SM 4500-NO3 E | Nitrogen in Water and Wastewater by Cadmium Reduction Method |
| SM 4500-NO3 F | Nitrogen (Nitrate) Automated Cadmium Reduction Method |
| SM 4500-NO3 F, EPA 353.2 | Nitrate+Nitrite as Nitrogen (Colorimetric, Automated, Cadmium Reduction) |
| SM 4500-NO3 FM | Modification of Nitrogen (Nitrate) Automated Cadmium Reduction Method |
| SM 4500-NO3 H | Nitrogen (Nitrate) Automated Hydrazine Reduction Method |
| SM 4500-NO3 I v21 | Nitrogen (Nitrate): Cadmium Reduction Flow Injection Method, Method Ed 21 |
| SM 4500-O G | Dissolved Oxygen, membrane electrode method |
| SM 4500-P BE | Standard Methods for the Examination of Water & Wastewater, 4500-P Phosphorus, Section B Sample Preparation, Section E Ascorbic Acid Method (2011) |
| SM 4500-P BF v22 | Phosphorus: Section B Sample Preparation, Section F Automated Ascorbic Acid Reduction, SM Edition 22 |
| SM 4500-P D | Phosphorous: Stannous Chloride Method from SM Edition 20 |
| SM 4500-P E | Phosphorus: Ascorbic Acid Method |
| SM 4500-P E v20 | Phosphorus: Ascorbic Acid Method SM Edition 20 |
| SM 4500-P E v21,22 | Phosphorus: Ascorbic Acid Method, SM Edition 21 and 22 |
| SM 4500-P E, EPA 365.3 | Phosphorus: Ascorbic Acid Method |
| SM 4500-P EM | Modification of method for PO4-P: Ascorbic Acid Method |
| SM 4500-P F | Total Phosphorous and Orthophosphate by automated ascorbic acid reduction |
| SM 4500-P H | Phosphorus: Manual Digestion and Flow Injection Analysis for Total Phosphorus |
| SM 4500-S2 D | Sulfide by Methylene Blue |
| SM 4500-Si D | Silica (Dissolved):Molybdosilicate method |
| SM 4500-SiO2 C | Silica by Molybdosilicate Method |
| SM 4500-SiO2 E/F v21 | Silica: Automated Method for Molybdate-Reactive Silica and Flow Injection Analysis for Molybdate-Reactive Silicate Method Ed 21 |
| SM 4500-SO4 E | Sulfate by Turbidimetric Method |
| SM 5210 B | Biochemical Oxygen Demand |
| SM 5210 B_10day | Biochemical Oxygen Demand - 10 day |
| SM 5220 C | Chemical Oxygen Demand, closed reflux, titrimetric method |
| SM 5220 D | Chemical Oxygen Demand, closed reflux, colometric method |
| SM 5310 B | Total Organic Carbon High-Temperature Combustion Method |
| SM 5310 B v20 | Total Organic Carbon High-Temperature Combustion Method SM Edition 20 |
| SM 5310 BM | Modification of Total Organic Carbon High-Temperature Combustion Method |
| SM 5310 BM-N | Modification of Total Organic Carbon High-Temperature Combustion Method to Determine Total Nitrogen |
| SM 5310 C | Total Organic Carbon: Persulfate-Ultraviolet Oxidation Method Doc# IO-SP-0039-00 |
| SM 5310 D | Total Organic Carbon: wet-oxidation method |
| SM 5540 | Anionic Surfactants as Methyl Blue Active Substances (MBAS) |
| SM 5540 C | Anionic Surfactants as Methyl Blue Active Substances |
| SM 5540 C v21 | Anionic Surfactants as Methyl Blue Active Substances (MBAS), SM Edition 21 |
| SM 5540 D v21 | Noionic Surfactants as CTAS Method Ed 21 |
| SM 7110 C | Coprecipitation Method for Gross Alpha Radioactivity in Drinking Water |
| SM 8010 F | Standard Test Method: Toxicity Test Systems, Materials, and Procedures |
| SM 908 A | Standard Total Coliform Multiple Tube Test |
| SM 908 C | Application of Tests and Routine Examinations for Total Coliform |
| SM 9221 | Multiple tube fermentation technique for coliform group (includes 9221ABC for total coliform) |
| SM 9221 B | The Standard Total Coliform Fermentation Technique |
| SM 9221 B/C | The Standard Total Coliform Fermentation Technique and Estimation of Bacterial Density |
| SM 9221 B/E | The Standard Total Coliform Fermentation Technique and the Fecal Coliform Procedure |
| SM 9221 B/E v20 | The Standard Total Coliform Fermentation Technique and the Fecal Coliform Procedure SM Edition 20 |
| SM 9221 B/F v 2006 | Standard Total Coliform Fermentation Technique with Escherichia coli Procedure Using Fluorogenic Substrate 2006 |
| SM 9221 C/E | Multiple-Tube Fermentation Technique for Members of the Coliform Group, Estimation of Bacterial Density and Fecal Coliform Procedure |
| SM 9221 D | Presence-Absence (P-A) Coliform Test |
| SM 9221 E | Fecal Coliform Procedure |
| SM 9221 F | Standard Total Coliform Fermentation Technique with E. Coli Procedure |
| SM 9222 B | Standard Total Coliform Membrane Filter Procedure |
| SM 9222 D | Fecal Coliform Membrane Filter Procedure |
| SM 9222 E | Delayed-Incubation Fecal Coliform Procedure |
| SM 9222 G | Membrane Filter Partition Procedures for E. coli - 21st Edition |
| SM 9223 | Enzyme Substrate Coliform Test |
| SM 9223 B | Enzyme Substrate Test using mutilple-tube, multi-well or presence-absence format (Colilert-18) |
| SM 9223 B-SOP ASWAU | Enzyme Substrate Test using multi-well modification by CRWQCB Region 5 Ag and Surface Water Assessment Unit |
| SM 9223 B-SOP1103 | Enzyme Substrate Test using mutilple-tube, multi-well or presence-absence format (Colilert-18), modification by EPA Region 9 |
| SM 9230 B | Multiple Tube Technique for fecal streptococcus and enterococcus groups |
| SM 9230 C | Standard Method for Examination of Bacteria in Water and Wastewater |
| SM 9230 D | Fluorogenic Substrate Enterococcus Test |
| SM 9230 D v21online | Fluorogenic Substrate Enterococcus Test SM version 21 online |
| Solorzano, 1969 | L. Solorzano, "Determination of Ammonia in Natural Waters By The Phenolhypochlorite Method", Limnology and Oceanography, Vol. 14, pgs 799-801, 1969 |
| Timberline Ammonia-001 | Determination of Inorganic Ammonia by Continuous Flow Gas Diffusion and Conductivity Cell Analysis |
| Timed Filling | Timed Filling method used for measuring stream discharge |
| ToxWQMeasurement | Measurement taken for toxicity WQ |
| TrashAssessment | RWQCB2 Protocol for Trash Assessment |
| UCB-WL_SOP-3.1_2007 | SOP 3.1 - STANDARD OPERATING PROCEDURE FOR TOTAL SUSPENDED SOLIDS ANALYSIS, Weston laboratory: University of California, Berkeley, November 17,2007 |
| UCB-WL_SOP-4.3_2010 | SOP 4.3 - STANDARD OPERATING PROCEDURE FOR 4-d WATER TOXICITY TESTING USING HYALELLA AZTECA, Weston laboratory: University of California, Berkeley, November 12, 2010 |
| UCD-AHPL Ex-Situ toxicity test | Quality Assurance Project Plan for Water Quality Monitoring at a Delta Integrator Site: Fish health and behavior Stillway 2019 |
| UCD-GC_dilutus | Granite Canyon Lab chronic toxicity test utilizing Chironomus dilutus with survival and ash-free dry weight endpoints. |
| UCD-LAWR NH3 SOP | Determination of nitrogen-ammonia in water based on the Berthelot reaction, UCD-LAWR SOP |
| UCSC SOP UCSCCM-002 | UCSC SOP UCSCCM-002 Standard Operating Procedure For Collection of Cyanobacteria and Cyanotoxins Samples |
| UCSC SOP UCSCLM-011 | UCSC SOP UCSCLM-011 Standard Operating Procedure For The Determination of Total Organic Carbon With Shimadzu TOC Analyzer |
| UC-SNARL QAPP App2-3 | Riffle-based periphyton and organic matter sampling SOPs for benthic macroinvertebrate bioassessment in the Eastern Sierra Nevada; QAPP - Aquatic Invertebrate Bioassessment Monitoring in the Eastern Sierra Nevada, Appendix 2-3 |
| USGS B-0050-85 | Fecal coliform bacteria (membrane-filter method) Immediate incubation test; USGS TWRI 5-A4/1989, p.37 |
| USGS B-0055-85 | Fecal streptococcal bacteria (membrane-filter method) Immediate incubation test; USGS TWRI 5-A4/1989, p.47 |
| USGS BAC32 | mFC membrane-filtration method for Fecal Coliforms |
| USGS I-1472-87 | Metals, atomic emission spectrometry, inductively coupled plasma (ICP); USGS OFR 93-125 p.101 |
| USGS I-1750-89 | Solids, residue on evaporation at 180 degrees C, dissolved, gravimetric; USGS TWRI 5-A1/1989, p.437 |
| USGS I-2020-05 | Determination of Elements in Natural-Water, Biota, Sediment, and Soil Samples using Collision/Reaction Cell Inductively-Coupled Plasma-Mass Spectrometry; USGS TM5-B1 |
| USGS I-2030-89 | Alkalinity, electrometric titration, automated; USGS TWRI 5-A1/1989, p.57 |
| USGS I-2057-90 | Anions, Ion-exchange chromatographic, automated; USGS OFR 93-125, p.19 |
| USGS I-2327-85 | Fluoride, Electrometric, Ion-Selective Electrode, Automated, Segmented-Flow; USGS TWRI 5-A1/1989, p. 221 |
| USGS I-2522-90 | Nitrogen, ammonia, colorimetry, salicylate-hypochlorite, automated-segmented flow; USGS OFR 93-125 p.125 |
| USGS I-2540-90 | Nitrogen, nitrite, colorimetry, diazotization, automated-segmented flow; USGS OFR 93-125, p.143 |
| USGS I-2545-90 | Nitrogen, nitrite plus nitrate, colorimetry, cadmium reduction-diazotization, automated-segmented flow; USGS OFR 93-125, p.157 |
| USGS I-2587-89 | pH, electrometric, glass-electrode; USGS TWRI 5-A1/1989, p.363 |
| USGS I-2601-90 | Phosphorus, orthophosphate, colorimetry, phosphomolybdate, automated-segmented flow; USGS OFR 93-125, p.197 |
| USGS I-2700-85 | Silica, colorimetric, molybdate blue, automated-segmented flow; USGS TWRI 5-A1/1989, p.417 |
| USGS I-2781-85 | Specific conductance, electrometric, Wheatstone bridge; USGS TWRI 5-A1/1989, p.461 |
| USGS I-3765-85 | Solids, residue at 105 degrees C, suspended, gravimetric; USGS TWRI 5-A1/1989, p.443 |
| USGS I-3860-85 | Turbidity, nephelomelric; USGS TWRI 5-A1/1989, p.497 |
| USGS I-4020-05 | Determination of Elements in Natural-Water, Biota, Sediment, and Soil Samples using Collision/Reaction Cell Inductively-Coupled Plasma-Mass Spectrometry; USGS TM5-B1 |
| USGS I-6600-85 | Phosphorus, colormetric, phosphomolybdate, automated-segmented flow; USGS TWRI 5-A1/1989, p.367 |
| USGS O-3100-83 | Carbon, organic, total, wet oxidation; USGS TWRI 5-A3/1987, p.15 |
| USGS OFR 00-170 | Determination of Ammonium Plus Organic Nitrogen by a Kjeldahl Digestion Method and an Automated Photometric Finish that Includes Digest Cleanup by Gas Diffusion; USGS I-2515-91 and USGS I-4515-91 |
| USGS OFR 01-273 | Determination of Four Selected Mosquito Insecticides and a Synergist in Water Using Liquid-Liquid Extraction and Gas Chromatography/Mass Spectrometry |
| USGS OFR 92-146 | Determination of Total Phosphorus by a Kjeldahl Digestion Method and an Automated Colormetric Finish that Includes Dialysis |
| USGS OFR 95-181 | Determination of Pesticides in Water by C-18 Solid-Phase Extraction and Capillary-Column Gas Chromatography/Mass Spectrometry with Selected-Ion Monitoring; USGS O-1126-95 |
| USGS OFR 95-181M | Mod Determination of Pesticides in Water by C-18 Solid-Phase Extraction, Capillary-Column Gas Chromatography/Mass Spectrometry w/Selected Ion Monito |
| USGS OFR 96-525 A011 | Arsenic, antimony, and selenium by flow injection or continuous flow-hydride generation-atomic absorption spectrophotometry; p.24 |
| USGS OFR 96-525 A091 | Mercury in water, geologic, and plant materials by continuous flowcold vaporatomic absorption spectrometry, p.42 |
| USGS OFR 96-525 E011 | Forty elements by inductively coupled plasma-atomic emission spectrometry; p.77 |
| USGS OFR 97-829 | Determination of 86 Volatile Organic Compounds in Water by Gas Chromatography/Mass Spectrometry, Including Detections Less Than Reporting Limits; USGS O-4127-96 |
| USGS OFR 98-165 | Determination of Elements in Whole-Water Digests Using Inductively Coupled Plasma-Optical Emission Spectrometry and Inductively Coupled Plasma-Mass Spectrometry; USGS I-4471-97 and USGS I-4472-97 |
| USGS OFR 99-093 | Determination of Dissolved Arsenic, Boron, Lithium, Selenium, Strontium, Thallium, and Vanadium Using Inductively Coupled PlasmaMass Spectrometry; USGS I-2477-92 |
| USGS OFR 99-166 | The determination of forty two elements in geological materials by inductively coupled plasma-mass spectrometry; supplement to USGS OFR 96-525 |
| USGS OSW 2004.04 M, 2007.01 M | Modified: Policy on the use of the FlowTracker for discharge measurements; Modified: SonTek/YSI FlowTracker firmware version 3.10 and software version 2.11 upgrades and additional policy on the use of FlowTrackers for discharge measurements. |
| USGS P-0590-85 | Percent moisture, total inbottom-material, gravimetric; USGS TWRI 5-A1/1989, p.48 |
| USGS WRIR 01-4132 | Determination of Organic Plus Inorganic Mercury in Filtered and Unfiltered Natural Water with Cold Vapor-Atomic Fluorescence Spectrometry; USGS I-2464-01 and USGS I-4464-01 |
| USGS WRIR 01-4134 | Determination of Pesticides in Water by Graphitized Carbon-Based Solid-Phase Extraction and High-Performance Liquid Chromatography/Mass Spectrometry; USGS O-2060-01 |
| USGS WRIR 03-4174 | Evaluation of Alkaline Persulfate Digestion as an Alternative to Kjeldahl Digestion for Determination of Total and Dissolved Nitrogen and Phosphorus in Water; USGS I-4650-03 |
| USGS-LC0113 | Filtration procedure for DOC |
| USGS-OCRL_GC/MS/MS_Gross_2021 | Gross, M.S., et al. 2021, Multiresidue Method for Analysis of Pesticides using Solid-Phase Extraction with Gas and Liquid Chromatography-Tandem Mass Spectrometry: U.S. Geological Survey data release, https://doi.org/10.5066/P9J8E544. by GC/MS/MS. |
| USGS-OCRL_GC/MS_2008;2009 | Hladik, et al 2008, Multi-residue method analy pest, water:Bull Env Contam/Tox,v80,p139144; Hladik,et al 2009, Methods of analysis: Determination of pyrethroid insecticides in water/sed: USGS Techniques/Methods book 5, chap. C2, 18 p. |
| USGS-OCRL_GC/MS_2008;2012;2011-12 | Hladik, et al 2008,Multi-residue method analy pest, water:Bull Env Contam/Tox,v80,p139144; Smalling,etal2012, Occur of pesticide in water/sed,200910:USGS DS707, 40p; Orlando,etal, Diss pesticide Sac-San Joaq Delta/Grizzly Bay, 201112: USGS DS779, 24 p. |
| USGS-OCRL_GC/MS_Hladik_2009 | Hladik, M.L., Smalling, K.L., and Kuivila, K.M., 2009, Methods of analysisDetermination of pyrethroid insecticides in water and sediment using gas chromatography/mass spectrometry: U.S. Geological Survey Techniques and Methods 5C2, 18 p |
| USGS-OCRL_GC/MS_Sanders_2018 | Sanders, C.J., Orlando, J.L., and Hladik, M.L., 2018, Detections of current-use pesticides at 12 surface water sites in California during a 2-year period beginning in 2015: U.S. Geological Survey Data Series 1088, 40 p., by GC/MS. |
| USGS-OCRL_LC/MS/MS_Gross_2021 | Gross, M.S., et al. 2021, Multiresidue Method for Analysis of Pesticides using Solid-Phase Extraction with Gas and Liquid Chromatography-Tandem Mass Spectrometry: U.S. Geological Survey data release, https://doi.org/10.5066/P9J8E544. by LC/MS/MS. |
| USGS-OCRL_LC/MS/MS_Hladik_2012 | Hladik, M.L., Calhoun, D.L., 2012, Analysis of the herbicide diuron, three diuron degradates, and six neonicotinoid insecticides in water-Method details and application to two Georgia streams: USGS Scientific Investigations Report 20125206, 10 p. |
| USGS-OCRL_LC/MS/MS_Sanders_2018 | Sanders, C.J., Orlando, J.L., and Hladik, M.L., 2018, Detections of current-use pesticides at 12 surface water sites in California during a 2-year period beginning in 2015: U.S. Geological Survey Data Series 1088, 40 p., by LC/MS/MS. |
| USGS-OCRL_WATER-PEST_06_GC/MS/MS | Multiresidue method for suite of pesticides and degradates/metabolites processing and analyzing whole, filtered, or tap water samples using Solid-Phase extraction and gas chromatography (GC) coupled with tandem mass spectroscopy (MS/MS) v6 |
| USGS-OCRL_WATER-PEST_06_LC/MS/MS | Multiresidue method for suite of pesticides and degradates/metabolites processing and analyzing whole, filtered, or tap water samples using Solid-Phase extraction and liquid chromatography (LC) coupled with tandem mass spectroscopy (MS/MS) v6 |
| Valderrama, J.C., 1981 | Valderrama, J.C., "The simultaneous analysis of total nitrogen and total phosphorus in natural waters." Mar. Chem., 10:109-122, 1981 |
| Velocity Area | Velocity Area method used for measuring stream discharge |
| Verdouw, 1977 | Ammonia (NH4-N) Determination Based on Indophenol Formation with Sodium Salicylate (Verdouw, H. 1977) |
| Walkley-Black | Total organic carbon analysis of sediment using oxidation and titration. |
| Whitledge, et al., 1981 | T.E. Whitledge, et al., "Automated Nutrient Analyses in Seawater", Technical Report (BNL-51398), Brookhaven National Lab., Upton, NY (USA), 1981 |
| Wintermans JF, et al., 1965 | Wintermans JF, de Mots A. Spectrophotometric characteristics of chlorophylls a and b and their pheophytins in ethanol. Biochim Biophys Acta. 1965 Nov 29;109(2):448453 |
| WL170 | Determination of Neonicotinoids in Water by Direct Aqueous Injection Liquid Chromatography/Tandem Mass Spectrometry (DAI-LC/MS/MS) |
| Wood, et al., 2010 | Wood, S.A., Holland, P.T., MacKenzie, L., 2010., "Development of solid phase adsorption toxin tracking (SPATT) for monitoring anatoxin-a and homoanatoxin-a in river water" Chemosphere, 82: 888-894 |
| WPCL Method 42 | Analysis of Paraquat dichloride |
| WPCL SOP 46 | WPCL SOP 46 for the Determination of Carbamate, Phenylurea, Methamidophos, Piperonyl Butoxide in Water by LC/MS/MS |
| WPCL SOP 67 | WPCL SOP 67 for the Determination of Pyrethroids in Sediment by GC/MS/MS (EI) |
| WPCL SOP 71 | WPCL SOP 71 for the Determination of Pyrethrins by LC/MS/MS |
| WPCL SOP 71 NCI | WPCL SOP 71 NCI for the Determination of Pyrethrins by GC/MS/MS |
| WPCL SOP 72 | WPCL SOP 72 for the Determination of Select Herbicides and Insecticides in Sediment by Gas Chromatography/Mass Spectrometry-Ion Trap Detector |
| WPCL SOP LC-007 | WPCL SOP LC-007 for the Determination of Fungicides by LC/MS/MS |
| WPCL SOP LC-008 | WPCL SOP LC-008 for the Determination of Fipronil and Degradates by LC/MS/MS |
| WPCL SOP LC-065 | Determination of Microcystins in Water and Tissues by Enhanced LC-MSMS |
| WPCL-MS-067 Rev 3 | Analysis of Pyrethroids by GC-MSMS-CI (NH3) Rev 3 |
| WRS 10A.1 | Standard Operating Procedure for the Determination of pH (Closed System) WRS 10A.1. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. October 2002 |
| WRS 11A.2 | Standard Operating Procedure for the Determination of Specific Conductivity WRS 11A.2. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. March 2004 |
| WRS 12A.1 | Standard Operating Procedure for the Determination of Acid Neutralizing Capacity (Alkalinity) WRS 12A.1. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. October 2002, Gruen.R, Motter.K |
| WRS 13A.2 | Standard Operating Procedure for the Determination of Turbidity WRS 13A.1. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. December 2002 |
| WRS 14B.1 | Standard Operating Procedure for the Determination of Total Suspended Solids (Non-Filterable Residue) WRS 14B.1. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. December 2002, Gruen.R |
| WRS 15A.1 | Standard Operating Procedure for the Determination of True Color WRS 15A.1. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. December 2002, Gruen.R |
| WRS 20A.1 | Standard Operating Procedure for the Analysis of Dissolved Inorganic Carbon WRS 20A.1. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. December 2002, Gruen.R |
| WRS 21A.1 | Standard Operating Procedure for the Analysis of Dissolved Organic Carbon WRS 21A.1. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. December 2002, Gruen.R |
| WRS 30A.1 | Standard Operating Procedure for the Determination of Ammonia in Fresh Waters WRS 30A.1. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. March 2003, Gruen.R, Motter.K |
| WRS 32A.1 | Standard Operating Procedure for the Determination of Silicate in Fresh Waters WRS 32A.1. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. March 2003, Gruen.R, Motter.K |
| WRS 34A.2 | Standard Operating Procedure for the Digestion and Analysis of Fresh Water Samples for Total Nitrogen and Total Phosphorus WRS 34A.2. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. March 2004, Echols.S |
| WRS 40A.2 | Standard Operating Procedure for the Determination of Chloride, Nitrate and Sulfate by Ion Chromatography WRS 40A.2. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. March 2004, Baxter.K |
| WRS 50A.2 | Standard Operating Procedure for the Determination of Cations in Natural Waters and Metals in Fish Tissue Digests by Flame Atomic Absorption Spectroscopy WRS 50A.2. Willamette Research Station Analytical Laboratory, Corvallis, Oregon March 2004, Baxter.K |
| WRS 51A.2 | Standard Operating Procedure for the Determination of Metals in Surface Waters and Fish Tissue Digests by Graphite Furnace Atomic Absorption Spectroscopy WRS 51A.2. Willamette Research Station Analytical Laboratory, Corvallis, Oregon March 2004, Baxter.K |
| WRS 71A.1 | Standard Operating Procedure for the Determination of Chlorophyll a WRS 71A.1. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. October 2002, Baxter.K |
| WRS 73A.1 | Standard Operating Procedure for the Determination of Ash-Free Dry Mass WRS 73A.1. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. October 2002, Baxter.K |
| WRS 73A.3 | Standard Operation Procedure for Determination of Ash Free Dry Mass WRS 73A.3. Willamette Research Station Analytical Laboratory, Corvallis, Oregon. April 2007, Baxter.K, Bower.B |
| Yu, 1994 | Determination of Dissolved Organic Nitrogen using Persulfate Oxidation and Conductimetric Quantification of Nitrate-Nitrogen (Yu, Z.S. 1994) |