You are here: Home

Method Codes

Parm Cd Meth Cd Meth Ds Meth Src Cd Cit Meth No Cit Nm
00001 G0001
00003 G0002
00009 G0003
00010 G0004
00010 THM01 Temperature, water, thermistor thermometer USGS National Field Manual, Chapter A6.1
00010 THM02 Temperature, water, liquid-in-glass thermometer USGS National Field Manual, Chapter A6.1
00010 THM03 Temperature, water, noncontact infrared
00010 THM07 Temperature, water, field measurement (NY WSC)
00011 G0004
00011 THM01 Temperature, water, thermistor thermometer USGS National Field Manual, Chapter A6.1
00011 THM02 Temperature, water, liquid-in-glass thermometer USGS National Field Manual, Chapter A6.1
00011 THM03 Temperature, water, noncontact infrared
00020 G0005
00020 THM04 Temperature, air, thermistor thermometer USGS National Field Manual, Chapter A6.1
00020 THM05 Temperature, air, liquid-in-glass thermometer USGS National Field Manual, Chapter A6.1
00021 THM04 Temperature, air, thermistor thermometer USGS National Field Manual, Chapter A6.1
00021 THM05 Temperature, air, liquid-in-glass thermometer USGS National Field Manual, Chapter A6.1
00025 BAROM Atmospheric pressure, barometer method USGS NFM 6.2 USGS National Field Manual
00025 G0006
00025 PUNAJ Atmospheric pressure, unadjusted, from weather station USGS NFM 6.2 USGS National Field Manual
00045 G0007
00045 PFLT Precipitation, total volume measured with a float
00045 PGEN Precipitation, unspecified method
00045 PMAN Precipitation, manual reading of calibrated collector
00045 POPT Precipitation, optical
00045 PRAD Precipitation, radar
00045 PTB1 Precipitation, tipping bucket with single bucket
00045 PTB2 Precipitation, tipping bucket with dual buckets
00045 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00045 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00045 SIG51 SIG51
00046 PFLT Precipitation, total volume measured with a float
00046 PGEN Precipitation, unspecified method
00046 PMAN Precipitation, manual reading of calibrated collector
00046 POPT Precipitation, optical
00046 PRAD Precipitation, radar
00046 PTB1 Precipitation, tipping bucket with single bucket
00046 PTB2 Precipitation, tipping bucket with dual buckets
00046 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00046 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00054 SIG50 SIG50
00054 SIG51 SIG51
00055 SADVM Stream velocity measured using a sideways looking acoustic doppler velocity meter.
00055 UADVM Stream velocity measured using an upward looking acoustic doppler velocity meter.
00055 V-EST Stream velocity, estimated USGS National Field Manual
00055 VADCP Stream velocity, acoustic doppler current profiler USGS OF 01-1
00055 VADV Stream velocity, acoustic doppler velocimeter
00055 VELC Stream velocity measured using an Electromagnetic Velocity Meter
00055 VICE Stream velocity measured with Ice Vane Meter
00055 VIPAA Stream Velocity measured with a Price AA meter with polymer cups
00055 VIPYG Stream Velocity measured with a Price Pygmy meter with polymer cups
00055 VOPT Velocity measured by a surface velocity stroboscopic device
00055 VOTT Stream velocity, horizontal shaft (Ott) meter
00055 VPAA Stream velocity, Price AA meter
00055 VPYG Stream velocity, Price pygmy meter
00055 VRAD Stream velocity, radar
00055 VTIME Stream velocity measured by any time of travel method
00055 VTRNS The method used to measure the velocity is not known.
00055 VULT Stream velocity, ultrasonic meter
00058 G0008
00059 G0009
00059 ZEROF Observed Zero Flow
00060 G0010
00060 Q-EST Discharge, estimated
00060 QADCP Discharge, measured, acoustic doppler current profiler from moving boat USGS OF 01-1
00060 QFLUM Discharge, measured, flume USGS TWRI 3-A14
00060 QIDIR Discharge, measured, indirect method USGS TWRI 3-A1
00060 QIDIR Discharge, measured, indirect method USGS TWRI 3-A2
00060 QIDIR Discharge, measured, indirect method USGS TWRI 3-A3
00060 QIDIR Discharge, measured, indirect method USGS TWRI 3-A4
00060 QIDIR Discharge, measured, indirect method USGS TWRI 3-A5
00060 QSCMM Discharge, measured, midsection method USGS TWRI 3-A8
00060 QSLPQ Discharge, slope-discharge rating curve method USGS TWRI 3-A10
00060 QSTGQ Discharge, stage-discharge rating curve method USGS TWRI 3-A10
00060 QTRAC Discharge, measured, tracer dye dilution USGS TWRI 3-A16
00060 QUNSP Discharge measured with an unspecified method
00060 QVELO Discharge, index-velocity rating curve method USGS TWRI 3-A10
00060 QVOLM Discharge, measured, volumetric USGS TWRI 3-A8
00060 QWEIR Discharge, measured, weir USGS TWRI 3-A8
00060 SIG3 SIG3
00060 SIG31 SIG31
00060 SIG5 SIG5
00060 SIG6 SIG6
00060 ZEROF Observed Zero Flow
00061 G0011
00061 Q-EST Discharge, estimated
00061 QADCP Discharge, measured, acoustic doppler current profiler from moving boat USGS OF 01-1
00061 QFLUM Discharge, measured, flume USGS TWRI 3-A14
00061 QIDIR Discharge, measured, indirect method USGS TWRI 3-A1
00061 QIDIR Discharge, measured, indirect method USGS TWRI 3-A2
00061 QIDIR Discharge, measured, indirect method USGS TWRI 3-A3
00061 QIDIR Discharge, measured, indirect method USGS TWRI 3-A4
00061 QIDIR Discharge, measured, indirect method USGS TWRI 3-A5
00061 QSCMM Discharge, measured, midsection method USGS TWRI 3-A8
00061 QSLPQ Discharge, slope-discharge rating curve method USGS TWRI 3-A10
00061 QSTGQ Discharge, stage-discharge rating curve method USGS TWRI 3-A10
00061 QTRAC Discharge, measured, tracer dye dilution USGS TWRI 3-A16
00061 QUNSP Discharge measured with an unspecified method
00061 QVELO Discharge, index-velocity rating curve method USGS TWRI 3-A10
00061 QVOLM Discharge, measured, volumetric USGS TWRI 3-A8
00061 QWEIR Discharge, measured, weir USGS TWRI 3-A8
00061 ZEROF Observed Zero Flow
00062 ACOUS Gage height, submersible acoustic
00062 CLIP Gage height, maximum or minimum gage height only
00062 CSG Gage height, crest stage gage
00062 ENCD Gage height, float driven analog to digital shaft encoder
00062 ETG Gage height, electric tape gage USGS TWRI 3-A7
00062 FLOAT Gage height, float tape gage USGS TWRI 3-A7
00062 HWM High Water Mark USGS TWRI 3-A1
00062 INSD Gage height, staff gage inside the gage house
00062 MANO Gage height, manometer USGS TWRI 8-A2
00062 NCAC Gage height, non-contact acoustic
00062 NCLZ Gage height, non-contact laser
00062 NCRD Gage height, non-contact radar
00062 NTRAN Gage height, non-submersible pressure transducer
00062 OTSD Gage height, primary reference staff gage outside the gage house
00062 RP Gage height, tape up or tape down from reference point USGS TWRI 3-A7
00062 STAFF Gage height, staff gage USGS TWRI 3-A7
00062 STRAN Gage height, submersible pressure transducer USGS TWRI 8-A3
00062 WWG Gage height, wire weight gage USGS TWRI 3-A7
00065 ACOUS Gage height, submersible acoustic
00065 CLIP Gage height, maximum or minimum gage height only
00065 CSG Gage height, crest stage gage
00065 DEC1 DEC1
00065 DEC3 DEC3
00065 ENCD Gage height, float driven analog to digital shaft encoder
00065 ETG Gage height, electric tape gage USGS TWRI 3-A7
00065 FLOAT Gage height, float tape gage USGS TWRI 3-A7
00065 G0012
00065 HWM High Water Mark USGS TWRI 3-A1
00065 INSD Gage height, staff gage inside the gage house
00065 MANO Gage height, manometer USGS TWRI 8-A2
00065 NCAC Gage height, non-contact acoustic
00065 NCLZ Gage height, non-contact laser
00065 NCRD Gage height, non-contact radar
00065 NTRAN Gage height, non-submersible pressure transducer
00065 OTSD Gage height, primary reference staff gage outside the gage house
00065 RP Gage height, tape up or tape down from reference point USGS TWRI 3-A7
00065 STAFF Gage height, staff gage USGS TWRI 3-A7
00065 STRAN Gage height, submersible pressure transducer USGS TWRI 8-A3
00065 WWG Gage height, wire weight gage USGS TWRI 3-A7
00072 ACOUS Gage height, submersible acoustic
00072 CLIP Gage height, maximum or minimum gage height only
00072 CSG Gage height, crest stage gage
00072 ENCD Gage height, float driven analog to digital shaft encoder
00072 ETG Gage height, electric tape gage USGS TWRI 3-A7
00072 FLOAT Gage height, float tape gage USGS TWRI 3-A7
00072 HWM High Water Mark USGS TWRI 3-A1
00072 INSD Gage height, staff gage inside the gage house
00072 MANO Gage height, manometer USGS TWRI 8-A2
00072 NCAC Gage height, non-contact acoustic
00072 NCLZ Gage height, non-contact laser
00072 NCRD Gage height, non-contact radar
00072 NTRAN Gage height, non-submersible pressure transducer
00072 OTSD Gage height, primary reference staff gage outside the gage house
00072 RP Gage height, tape up or tape down from reference point USGS TWRI 3-A7
00072 STAFF Gage height, staff gage USGS TWRI 3-A7
00072 STRAN Gage height, submersible pressure transducer USGS TWRI 8-A3
00072 WWG Gage height, wire weight gage USGS TWRI 3-A7
00076 00103 TURBIDITY (NTU-EPA) USEPA 180.1
00076 TBD01 Turbidity by comparison with standards using a turbidimeter USGS I-3860-85 USGS TWRI 5-A1/1989, p 497
00077 G0013
00077 SECCH Secchi disk method EPA 841-B-97-003, section 5.5
00078 G0014
00078 SECCH Secchi disk method EPA 841-B-97-003, section 5.5
00080 CC002 True color of filtered water by visual comparison with standards (EPA method 110.2; DODEC program) USEPA 110.2
00080 CC003 Color in filtered water by visual comparison using a color comparator USGS I-1250-85 USGS TWRI 5-A1/1989, p 191
00080 CC005 True color of filtered water by visual comparison with standards (Standard Methods 2120 B; DODEC program) STDMETH 2120 B Standard Methods
00080 CL014 COLOR (EPA) USEPA
00081 CC001 Apparent color of unfiltered water by visual comparison with standards (EPA method 110.2; DODEC program) USEPA 110.2
00081 CC004 Apparent color of unfiltered water by visual comparison with standards (Standard Methods 2120 B; DODEC program) STDMETH 2120 B Standard Methods
00090 B0082
00095 SC001 Specific electrical conductance, field, contacting-type sensor USGS I-1780-77
00095 SC001 Specific electrical conductance, field, contacting-type sensor USGS National Field Manual, Chapter A6.3
00095 SC003 Specific conductance, water, field, electrometry (NRP and CO WSC) USGS TWRI 9-A6.3/1998
00098 G0015
00118 PFLT Precipitation, total volume measured with a float
00118 PGEN Precipitation, unspecified method
00118 PMAN Precipitation, manual reading of calibrated collector
00118 POPT Precipitation, optical
00118 PRAD Precipitation, radar
00118 PTB1 Precipitation, tipping bucket with single bucket
00118 PTB2 Precipitation, tipping bucket with dual buckets
00118 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00118 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00119 PFLT Precipitation, total volume measured with a float
00119 PGEN Precipitation, unspecified method
00119 PMAN Precipitation, manual reading of calibrated collector
00119 POPT Precipitation, optical
00119 PRAD Precipitation, radar
00119 PTB1 Precipitation, tipping bucket with single bucket
00119 PTB2 Precipitation, tipping bucket with dual buckets
00119 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00119 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00120 PFLT Precipitation, total volume measured with a float
00120 PGEN Precipitation, unspecified method
00120 PMAN Precipitation, manual reading of calibrated collector
00120 POPT Precipitation, optical
00120 PRAD Precipitation, radar
00120 PTB1 Precipitation, tipping bucket with single bucket
00120 PTB2 Precipitation, tipping bucket with dual buckets
00120 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00120 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00121 PFLT Precipitation, total volume measured with a float
00121 PGEN Precipitation, unspecified method
00121 PMAN Precipitation, manual reading of calibrated collector
00121 POPT Precipitation, optical
00121 PRAD Precipitation, radar
00121 PTB1 Precipitation, tipping bucket with single bucket
00121 PTB2 Precipitation, tipping bucket with dual buckets
00121 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00121 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00122 PFLT Precipitation, total volume measured with a float
00122 PGEN Precipitation, unspecified method
00122 PMAN Precipitation, manual reading of calibrated collector
00122 POPT Precipitation, optical
00122 PRAD Precipitation, radar
00122 PTB1 Precipitation, tipping bucket with single bucket
00122 PTB2 Precipitation, tipping bucket with dual buckets
00122 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00122 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00123 PFLT Precipitation, total volume measured with a float
00123 PGEN Precipitation, unspecified method
00123 PMAN Precipitation, manual reading of calibrated collector
00123 POPT Precipitation, optical
00123 PRAD Precipitation, radar
00123 PTB1 Precipitation, tipping bucket with single bucket
00123 PTB2 Precipitation, tipping bucket with dual buckets
00123 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00123 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00124 PFLT Precipitation, total volume measured with a float
00124 PGEN Precipitation, unspecified method
00124 PMAN Precipitation, manual reading of calibrated collector
00124 POPT Precipitation, optical
00124 PRAD Precipitation, radar
00124 PTB1 Precipitation, tipping bucket with single bucket
00124 PTB2 Precipitation, tipping bucket with dual buckets
00124 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00124 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00125 PFLT Precipitation, total volume measured with a float
00125 PGEN Precipitation, unspecified method
00125 PMAN Precipitation, manual reading of calibrated collector
00125 POPT Precipitation, optical
00125 PRAD Precipitation, radar
00125 PTB1 Precipitation, tipping bucket with single bucket
00125 PTB2 Precipitation, tipping bucket with dual buckets
00125 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00125 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00126 PFLT Precipitation, total volume measured with a float
00126 PGEN Precipitation, unspecified method
00126 PMAN Precipitation, manual reading of calibrated collector
00126 POPT Precipitation, optical
00126 PRAD Precipitation, radar
00126 PTB1 Precipitation, tipping bucket with single bucket
00126 PTB2 Precipitation, tipping bucket with dual buckets
00126 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00126 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00127 PFLT Precipitation, total volume measured with a float
00127 PGEN Precipitation, unspecified method
00127 PMAN Precipitation, manual reading of calibrated collector
00127 POPT Precipitation, optical
00127 PRAD Precipitation, radar
00127 PTB1 Precipitation, tipping bucket with single bucket
00127 PTB2 Precipitation, tipping bucket with dual buckets
00127 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00127 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00128 PFLT Precipitation, total volume measured with a float
00128 PGEN Precipitation, unspecified method
00128 PMAN Precipitation, manual reading of calibrated collector
00128 POPT Precipitation, optical
00128 PRAD Precipitation, radar
00128 PTB1 Precipitation, tipping bucket with single bucket
00128 PTB2 Precipitation, tipping bucket with dual buckets
00128 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00128 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00129 PFLT Precipitation, total volume measured with a float
00129 PGEN Precipitation, unspecified method
00129 PMAN Precipitation, manual reading of calibrated collector
00129 POPT Precipitation, optical
00129 PRAD Precipitation, radar
00129 PTB1 Precipitation, tipping bucket with single bucket
00129 PTB2 Precipitation, tipping bucket with dual buckets
00129 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00129 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00149 GCN03 Alpha-emitting isotopes of Radium, water, filtered, pCi/L, by gas proportional counting
00191 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00193 G0016
00193 PFLT Precipitation, total volume measured with a float
00193 PGEN Precipitation, unspecified method
00193 PMAN Precipitation, manual reading of calibrated collector
00193 POPT Precipitation, optical
00193 PRAD Precipitation, radar
00193 PTB1 Precipitation, tipping bucket with single bucket
00193 PTB2 Precipitation, tipping bucket with dual buckets
00193 PWBE Precipitation, weighing bucket measured with an electronic method (strain gage or load cell)
00193 PWBM Precipitation, weighing bucket measured with a mechanical method (potentiometer or pen)
00300 AZIDE Dissolved Oxygen, Alsterberg-Azide modification of the Winkler Titration STDMETH 4500-O C Standard Methods
00300 G0017
00300 G0018
00300 IND02 Dissolved Oxygen, CHEMetrics indigo carmine colorimetric field kit, 2-15 mg/L CHEMetrics V-2000 Photometer Manual, Rev. 16
00300 IND03 Dissolved oxygen, water, field, Chemetrics indigo carmine test kit, 0-15 ppm (mg/L), photometrically determined
00300 INDGO Dissolved Oxygen, Spectrophotometric Indigo Carmine ASTM D888-87 Meth A ASTM
00300 INDKT Dissolved Oxygen, CHEMetrics indigo carmine colorimetric field kit, 1-12mg/L American Laboratory, March 1982, p 119-134
00300 INDKT Dissolved Oxygen, CHEMetrics indigo carmine colorimetric field kit, 1-12mg/L ASTM D888-87 Meth A ASTM
00300 LUMIN Dissolved Oxygen, Luminescence Quenching (Luminescence-Based Sensor) ASTM D888-05 ASTM
00300 LUMIN Dissolved Oxygen, Luminescence Quenching (Luminescence-Based Sensor) USGS National Field Manual, Chapter A6.2
00300 MEMB2 Dissolved oxygen, laboratory, membrane electrode method (Standard Methods 4500-O G; DODEC program) STDMETH 4500-O G Standard Methods
00300 MEMBR Dissolved Oxygen, Amperometric (Membrane Electrode Method) STDMETH 4500-O G Standard Methods
00300 RHODA Low level dissolved oxygen, CHEMetrics Rhodazine-D colorimetry (visual comparison) field kit, 0-1 mg/L ASTM D5543-94 ASTM
00300 RHODA Low level dissolved oxygen, CHEMetrics Rhodazine-D colorimetry (visual comparison) field kit, 0-1 mg/L ASTM ASTM, 1984, Lowlevel DO, Power Plant Manual, p 169
00300 SPC10 Low level dissolved oxygen, CHEMetrics Rhodazine-D, spectrophotometry (analysis by spectrophotometer) ASTM D 5543-94 White and others, 1990
00300 WINKL Dissolved Oxygen, Iodometric (Winkler Titration) STDMETH 4500-O B Standard Methods
00301 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00301 CAL33 Dissolved oxygen solubility in hypersaline waters, calculation Limnol. Oceanogr., 1991, v 36, no 2, p 235-250
00301 G0019
00310 00097 BOD 5-DAY AT 20 DEG (EPA) STDMETH 507 Standard Methods
00310 00099 5-Day BOD Test STDMETH 5210B Standard Methods
00310 G0020
00310 INC01 BOD in unfiltered water by incubation for 5 days at 20 deg. C (EPA method 405.1; DODEC program) USEPA 405.1
00310 INC02 BOD in unfiltered water by incubation for 5 days at 20 deg. C (Standard Methods 5210 B; DODEC program) STDMETH 5210 B Standard Methods
00310 INC04 BOD in unfiltered water by incubation for 5 days at 20 degrees Celsius with oxygen determination by the azide modification of the titrimetric method or the membrane electrode method (Standard Methods 5210 B; DODESP) STDMETH 5210B
00339 TT044 COD in bottom materials by dichromate oxidation and titration USGS I-5560-85 USGS TWRI 5-A1/1989, p 359
00340 00082 CHEMICAL OXYGEN DEMAND (HACH)
00340 00120 CHEMICAL OXYGEN DEMAND (EPA) USEPA 410.4
00340 CL025 COD in unfiltered water by dichromate digestion and automated colorimetry USEPA 410.4
00340 G0021 Chemical oxygen demand, water, unfiltered, titrimetric, 0.25N dichromate oxidation USGS I-3560-78 USGS OF 78-679, p 969
00340 G0021 Chemical oxygen demand, water, unfiltered, titrimetric, 0.25N dichromate oxidation USGS I-3560-78 USGS TWRI 5-A1/1979, p 605
00340 OX003 COD by dichromate oxidation and colorimetry USGS I-3561-85 USGS TWRI 5-A1/1989, p 357
00340 OX004 COD by dichromate oxidation and colorimetry (Hach COD digestor and colorimeter system) USGS I-3561-85 USGS TWRI 5-A1/1989, p 357
00359 INC01 BOD in unfiltered water by incubation for 5 days at 20 deg. C (EPA method 405.1; DODEC program) USEPA 405.1
00359 INC03 BOD in filtered water by incubation for 5 days at 20 deg. C (Standard Methods 5210 B; DODEC program) STDMETH 5210 B Standard Methods
00400 EL003 pH,WWR,FLD, ELEC USGS I-1586-77
00400 EL009 pH, water, field, glass electrode (NRP and CO WSC) USGS TWRI 9-A6.4/1998
00400 PAPER pH, field, by litmus paper or test strips
00400 PROBE pH, field, electrometric USGS NFM 6.4 USGS National Field Manual, Chapter A6.4
00403 EL002 pH of unfiltered water, laboratory, by electrometry (EPA method 150.1; DODEC program) USEPA 150.1
00403 EL006 pH, lab, by automated glass electrode USGS I-2587-85 USGS TWRI 5-A1/1989, p 363
00403 EL007 pH in low ionic-strength water by automated electrometry USGS I-2588-90 USGS OF 93-125, p 171
00403 EL008 pH of unfiltered water, laboratory, by electrometry (Standard Methods 4500-H B; DODEC program) STDMETH 4500-H B Standard Methods
00403 EL010 pH, water, laboratory, automated, glass electrode (NRP and CO WSC) USGS I-2587-85 USGS TWRI 5-A1/1989, p 363
00403 EL011 pH in low ionic-strength water by glass electrode with ionic strength adjustment
00403 EL014 pH, unfiltered water, manual laboratory measurement with Orion Ross electrode (USGS-NYL)
00403 EL015 pH, unfiltered water, automated laboratory measurement with Orion Ross electrode (USGS-NYL) USGS OF 95-416
00403 EL018 pH, lab, low ionic-strength (LIS) unfiltered water, custom automated electrometry with glass electrode and ionic strength adjustment (ISA)
00403 EL019 pH, unfiltered water, manual laboratory measurement with Orion Ross electrode (NY WSC; ALSC)
00403 EL020 pH, unfiltered water, laboratory measurement with Orion Ross electrode (NY WSC; KECK)
00405 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00405 G0022
00405 GC152 Dissolved gases by gas chromatography with flame ionization detection USGS Chlorofluorocarbon Laboratory web page
00408 EL017 pH, water, filtered, lab, initial pH measured by alkalinity instrument
00409 TT058 Acid neutralizing capacity, Gran titration, Hach digital titrator USGS NFM 6.6 USGS National Field Manual
00409 TT059 Acid neutralizing capacity, Gran titration, buret titrator USGS NFM 6.6 USGS National Field Manual
00409 TT079 Acid neutralizing capacity, unfiltered water, laboratory, manual Gran titration (USGS-NYL)
00409 TT080 Acid neutralizing capacity, unfiltered water, laboratory, automated Gran titration (USGS-NYL) USGS OF 95-416
00409 TT090 Acid neutralizing capacity, water, unfiltered, manual Gran titration (USGSNYWC; ALSC)
00409 TT091 Acid neutralizing capacity, water, unfiltered, Gran titration (USGSNYWC; KECK)
00410 TT008 ANC, FET, FIELD, fixed endpoint
00410 TT009 ANC, FET, FIELD, incremental titration
00410 TT063 Acid neutralizing capacity, fixed endpoint titration, Hach digital titrator USGS NFM 6.6 USGS National Field Manual
00410 TT064 Acid neutralizing capacity, fixed endpoint titration, buret titrator USGS NFM 6.6 USGS National Field Manual
00410 TT081 Acid neutralizing capacity, fixed endpoint titration (pH 4.5 using bromcresol green, methyl red colorimetric indicator), field (CO WSC) HACH 8203 Hach Water Analysis Handbook, alkalinity method
00410 TT081 Acid neutralizing capacity, fixed endpoint titration (pH 4.5 using bromcresol green, methyl red colorimetric indicator), field (CO WSC) STDMETH 2320B Standard Methods
00413 TT058 Acid neutralizing capacity, Gran titration, Hach digital titrator USGS NFM 6.6 USGS National Field Manual
00413 TT059 Acid neutralizing capacity, Gran titration, buret titrator USGS NFM 6.6 USGS National Field Manual
00413 TT060 ANC or alkalinity, laboratory, Gran titration, automatic titrator Gran, 1952
00413 TT078 Acid neutralizing capacity, water, unfiltered, Gran titration (NRP and CO WSC) USGS TWRI 9-A6.6/1998, p 28
00413 TT094 Alkalinity, water, filtered, lab, by autotitrator fixed endpoint titration to pH 4.5 USGS TWRI 5-A1/1989, p 57
00416 TT077 Acid neutralizing capacity, water, unfiltered, inflection point titration with buret (NRP and CO WSC) USGS TWRI 9-A6.6/1998, p 19
00417 TT010 ANC, FET, LAB, fixed endpoint
00417 TT011 ANC, FET, LAB, incremental titration
00417 TT093 Acid neutralizing capacity, water, unfiltered, fixed endpoint (pH 4.5) titration, laboratory (Standard Methods 2320 B; USGS-NYL) STDMETH 2320 B
00418 TT054 Alkalinity, fixed endpoint titration, Hach digital titrator USGS NFM 6.6 USGS National Field Manual
00418 TT055 Alkalinity, fixed endpoint titration, buret titrator USGS NFM 6.6 USGS National Field Manual
00418 TT082 Alkalinity, fixed endpoint titration (pH 4.5 using bromcresol green, methyl red colorimetric indicator), field (CO WSC) HACH 8203 Hach Water Analysis Handbook, alkalinity method
00418 TT082 Alkalinity, fixed endpoint titration (pH 4.5 using bromcresol green, methyl red colorimetric indicator), field (CO WSC) STDMETH 2320B Standard Methods
00419 TT001 ALKALINITY,WWR,IN-TITR,FLD (unknown owner)
00419 TT065 Acid neutralizing capacity, inflection-point titration method (incremental titration method), Hach digital titrator USGS NFM 6.6 USGS National Field Manual
00419 TT066 Acid neutralizing capacity, inflection-point titration method (incremental titration method), buret titrator USGS NFM 6.6 USGS National Field Manual
00419 TT076 Acid neutralizing capacity, water, unfiltered, inflection point titration with digital titrator, field (NRP and CO WSC) USGS TWRI 9-A6.6/1998, p 22
00421 TT071 Alkalinity in filtered water by titration (DODEC program) STDMETH 2320 B Standard Methods
00430 TT003 Carbonate ALK FLD EP (NWQL)
00434 EL016 pH, water, lab, adjusted to 25 degrees Celsius, electrometry (EPA method 9040B; DODEC program) USEPA 9040B
00435 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00435 G0023 Acidity, electrometric titration USGS I-1020-78 USGS OF 78-679, p 845
00435 G0023 Acidity, electrometric titration USGS I-1020-78 USGS TWRI 5-A1/1979, p 515
00435 TT033 Acidity of unfiltered water by titration with NaOH USEPA 305.1
00435 TT069 Acidity in unfiltered water by titration (DODEC program) STDMETH 2310 B Standard Methods
00440 ASM07 Fixed endpoint titration, Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00440 ASM07 Fixed endpoint titration, Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00440 ASM08 Fixed endpoint titration, buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00440 ASM08 Fixed endpoint titration, buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00440 SSM07 Fixed endpoint titration, Hach digital titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00440 SSM08 Fixed endpoint titration, buret titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00440 TT006 ANC HCO3 FET FIELD, fixed endpoint
00440 TT007 ANC HCO3 FET FIELD, incremental titration
00440 TT063 Acid neutralizing capacity, fixed endpoint titration, Hach digital titrator USGS NFM 6.6 USGS National Field Manual
00440 TT064 Acid neutralizing capacity, fixed endpoint titration, buret titrator USGS NFM 6.6 USGS National Field Manual
00445 ASM07 Fixed endpoint titration, Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00445 ASM07 Fixed endpoint titration, Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00445 ASM08 Fixed endpoint titration, buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00445 ASM08 Fixed endpoint titration, buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00445 SSM07 Fixed endpoint titration, Hach digital titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00445 SSM08 Fixed endpoint titration, buret titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00445 TT004 ANC CARB FET FIELD, fixed endpoint (OWQ)
00445 TT005 ANC CARB FET FIELD, incremental titration
00445 TT063 Acid neutralizing capacity, fixed endpoint titration, Hach digital titrator USGS NFM 6.6 USGS National Field Manual
00445 TT064 Acid neutralizing capacity, fixed endpoint titration, buret titrator USGS NFM 6.6 USGS National Field Manual
00447 ASM09 Inflection-point titration method (incremental titration method), Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00447 ASM09 Inflection-point titration method (incremental titration method), Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00447 ASM10 Inflection-point titration method (incremental titration method), buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00447 ASM10 Inflection-point titration method (incremental titration method), buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00447 SSM09 Inflection-point titration method (incremental titration method), Hach digital titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00447 SSM10 Inflection-point titration method (incremental titration method), buret titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00447 TT065 Acid neutralizing capacity, inflection-point titration method (incremental titration method), Hach digital titrator USGS NFM 6.6 USGS National Field Manual
00447 TT066 Acid neutralizing capacity, inflection-point titration method (incremental titration method), buret titrator USGS NFM 6.6 USGS National Field Manual
00450 ASM09 Inflection-point titration method (incremental titration method), Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00450 ASM09 Inflection-point titration method (incremental titration method), Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00450 ASM10 Inflection-point titration method (incremental titration method), buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00450 ASM10 Inflection-point titration method (incremental titration method), buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00450 SSM09 Inflection-point titration method (incremental titration method), Hach digital titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00450 SSM10 Inflection-point titration method (incremental titration method), buret titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00450 TT002 BICARBONATE,WWR,IN-TITR,FLD (unknown owner)
00450 TT065 Acid neutralizing capacity, inflection-point titration method (incremental titration method), Hach digital titrator USGS NFM 6.6 USGS National Field Manual
00450 TT066 Acid neutralizing capacity, inflection-point titration method (incremental titration method), buret titrator USGS NFM 6.6 USGS National Field Manual
00452 ASM01 Inflection-point titration method (incremental titration method), Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00452 ASM01 Inflection-point titration method (incremental titration method), Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00452 ASM02 Inflection-point titration method (incremental titration method), buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00452 ASM02 Inflection-point titration method (incremental titration method), buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00452 SSM01 Inflection-point titration method (incremental titration method), Hach digital titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00452 SSM02 Inflection-point titration method (incremental titration method), buret titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00452 TT018 Carbonate, dissolved, field, fixed endpoint
00452 TT019 Carbonate, dissolved, field, incremental titration
00452 TT061 Alkalinity, inflection-point titration method (incremental titration method), Hach digital titrator USGS NFM 6.6 USGS National Field Manual
00452 TT062 Alkalinity, inflection-point titration method (incremental titration method), buret titrator USGS NFM 6.6 USGS National Field Manual
00453 ASM01 Inflection-point titration method (incremental titration method), Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00453 ASM01 Inflection-point titration method (incremental titration method), Hach digital titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00453 ASM02 Inflection-point titration method (incremental titration method), buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) Rounds, S.A., 2007, Alkalinity calculation methods
00453 ASM02 Inflection-point titration method (incremental titration method), buret titrator, Advanced Speciation Method (speciation is calculated from sample pH and alkalinity or acid neutralizing capacity, using acid dissociation constants) USGS National Field Manual, Chapter A6.6
00453 SSM01 Inflection-point titration method (incremental titration method), Hach digital titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00453 SSM02 Inflection-point titration method (incremental titration method), buret titrator, Simple Mass-Balance Speciation Method (hydroxide is not considered--this method is only suitable for samples with pH <9.2) USGS National Field Manual, Chapter A6.6
00453 TT016 Bicarbonate, dissolved, field, fixed endpoint
00453 TT017 Bicarbonate, dissolved, field, incremental titration
00453 TT061 Alkalinity, inflection-point titration method (incremental titration method), Hach digital titrator USGS NFM 6.6 USGS National Field Manual
00453 TT062 Alkalinity, inflection-point titration method (incremental titration method), buret titrator USGS NFM 6.6 USGS National Field Manual
00480 00094 SALINITY (PPT) STDMETH 2520B Standard Methods
00480 G0024
00495 G0025
00495 GRV28 Moisture content of bottom material, by weight USGS P-0590-85 USGS TWRI 5-A1/1989, p 48
00496 GRV25 Loss on ignition, from bottom material, by weight USGS I-5753-85 USGS TWRI 5-A1/1989, p 451
00500 GRV55 Total solids, water, unfiltered, dried at 103-105 degrees Celsius, gravimetric (Standard Methods 2450 B; USGS-NYL) STDMETH 2450 B
00500 ROE08 Residue on evaparation of unfiltered water, dried at 105 deg. C and weighed (EPA method 160.3; DODEC program) USEPA 160.3
00500 ROE12 Residue on evaporation at 105 deg. C of unfiltered water, by weight USGS I-3750-85 USGS TWRI 5-A1/1989, p 441
00500 ROE13 Residue on evaporation, water, unfiltered, dried at 105 deg. C (SM 2540 B; DODEC program) STDMETH 2540 B Standard Methods
00500 SLD13 Total solids in unfiltered water, gravimetric, dried at 103-105 degrees Celsius (Standard Methods 2540 B; PA WSC) STDMETH 2540 B
00505 GRV13 Loss on ignition of residue on evaporation of unfiltered water, heated to 550 deg. C and weighed USEPA 160.4
00505 GRV58 Loss on ignition of fixed and volatile solids, water, unfiltered, ignited at 550 degrees Celsius, gravimetric (Standard Methods 2540 E; USGS-NYL) STDMETH 2540 E
00505 SLD03 Loss on ignition, from residue on evaporation of unfiltered water, by weight USGS I-3753-85 USGS TWRI 5-A1/1989, p 447
00515 GRV44 Solids, residue on evaporation at 105 degrees Celsius, dissolved, gravimetric (USGS I-1749-85; PA WSC; PA-DEP) USGS I-1749-85 USGS TWRI 5-A1/1989
00515 ROE09 Residue on evaporation at 105 deg. C of filtered water, by weight USGS I-1749-85 USGS TWRI 5-A1/1989, p 439
00520 ROE11 Loss on ignition, from residue on evaporation of filtered water, by weight USGS I-1753-85 USGS TWRI 5-A1/1989, p 445
00525 GRV03 Solids, non-vol, FIL
00530 GRV45 Solids, residue at 105 degrees Celsius, suspended, gravimetric (USGS I-3765-85; PA WSC; PA-DEP) USGS I-3765-85 USGS TWRI 5-A1/1989
00530 GRV48 Suspended solids, freeze dried at -50 degrees Celsius, by weight (USGSBGCA)
00530 GRV52 Total suspended solids (TSS), dried at 103 to 105 degrees Celsius, gravimetric (USGS I-3765-85; USGSVAWC; VA-CLS) USGS I-3765-85
00530 GRV53 Suspended solids (TSS), water, unfiltered, dried at 103 to 105 degrees Celsius, gravimetric (Standard Methods 2540 D; USGSVAWC; VA-FCES) STDMETH 2540 D
00530 GRV54 Suspended solids (TSS), water, unfiltered, dried at 103 to 105 degrees Celsius, gravimetric (Standard Methods 2540 D; USGSVAWC; VA-HRSD) STDMETH 2540 D
00530 ROE01 Residue T-NONFL105 S
00530 ROE07 RESIDUE TOT NON-FILT AT 105C USEPA 160.2
00530 SLD01 Suspended solids filtered from water (aka: TSS or nonfilterable residue), dried at 105 deg. C and weighed (EPA method 160.2; DODEC program) USEPA 160.2
00530 SLD04 Suspended solids, dried at 105 deg. C, by weight USGS I-3765-85 USGS TWRI 5-A1/1989, p 443
00530 SLD06 Residue, filtered from water (aka: nonfilterable or TSS), dried at 105 deg. C, and weighed (Standard Methods 2540 D; DODEC program) STDMETH 2540 D Standard Methods
00530 SLD08 Residue, total nonfilterable, dried at 105 deg. C, by weight (Colorado WSC) USGS I-3765-89 USGS TWRI 5-A1/1989, p 443
00530 SLD10 Residue, non-filterable, gravimetric, dried at 103-105 deg. C (EPA 160.2, Colorado WSC) USEPA 160.2
00530 SLD11 Residue, non-filterable, gravimetric, dried at 103-105 deg. C (EPA 160.2; Colorado WSC; CO-HFMAN lab) USEPA 160.2
00530 SLD17 Suspended solids (TSS) filtered from water, dried at 105 degrees Celsius and weighed (Standard Methods 2540 D; WI WSC) STDMETH 2540 D
00535 GRV60 Loss on ignition of suspended solids, water, unfiltered USGS I-3767-85
00535 SLD02 Loss on ignition of suspended solids filtered from water, heated to 550 deg. C and weighed USEPA 160.4
00535 SLD05 Loss on ignition, from suspended solids, by weight USGS I-3767-85 USGS TWRI 5-A1/1989, p 449
00535 SLD16 Loss on ignition (LOI) from suspended solids filtered from water, heated to 550 degrees Celsius, and weighed (Standard Methods 2540 E; WI WSC) STDMETH 2540 E
00540 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00540 GRV59 Suspended solids remaining after ignition, water, unfiltered USGS I-3766-85
00540 ROE02 Residue fixed nonfil
00540 SLD09 Residue, fixed nonfilterable, ignition at 550 deg. C, by weight (Colorado WSC) USEPA 160.4 EPA/600/4-79/020
00540 SLD12 Residue, nonfiltrable, after ignition (Standard Methods 2540 E; Colorado WSC) STDMETH 2540 E
00545 IMHOF Settleable solids from unfiltered water, measured volumetrically with an Imhoff cone (EPA method 160.5; DODEC program) USEPA 160.5
00545 SLD18 Settleable solids from unfiltered water, measured either volumetrically or gravimetrically (Standard Methods 2540 F; DODESP program) STDMETH 2540 F
00552 00101 EPA Method 1664, Oil & Grease USEPA 1664 USGS NWQL TM 96.08
00552 GRV30 n-Hexane extractable material (HEM) by extraction and gravimetry (see attachment 1 in the reference) USEPA 1664A EPA-821-R-98-002
00552 GRV36 n-Hexane extractable material (HEM) and silica gel treated n-hexane extractable material (SGT-HEM) by extraction and gravimetry (oil and grease and total petroleum hydrocarbons)(EPA method 1664; PA WSC) USEPA 1664
00552 GRV46 n-Hexane extractable material (HEM; oil & grease) and silica gel treated n-hexane extractable material (SGT-HEM; non-polar material), water, unfiltered, by extraction and gravimetry (EPA 1664B; DODESP; RTI) USEPA 1664B
00553 GRV29 n-Hexane Extractable Material (HEM) USEPA 9071B EPA SW-846, Method 9071B
00556 00101 EPA Method 1664, Oil & Grease USEPA 1664 USGS NWQL TM 96.08
00556 GRV26 Oil and grease extractable from unfiltered water, by weight USGS O-3108-83 USGS TWRI 5-A3/1987, p 51
00557 GRV27 Oil and grease extractable from bottom material, by weight USGS O-5108-83 USGS TWRI 5-A3/1987, p 53
00572 GRV15 Periphyton, gravimetric method for biomass (NWQL) USGS B-3520-85 USGS TWRI 5-A4/1989, p 139
00572 GRV16 Periphyton, gravimetric method for biomass (Ocala) USGS B-3520-85 USGS TWRI 5-A4/1989, p 139
00573 GRV15 Periphyton, gravimetric method for biomass (NWQL) USGS B-3520-85 USGS TWRI 5-A4/1989, p 139
00573 GRV16 Periphyton, gravimetric method for biomass (Ocala) USGS B-3520-85 USGS TWRI 5-A4/1989, p 139
00597 GC153 Dissolved gases by gas chromatography with thermal conductivity detection USGS Chlorofluorocarbon Laboratory web page
00600 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00600 B0083 Total nitrogen, water, unfiltered, calculated USGS I-3556-77
00600 CAL11 Total nitrogen calculated as the sum of analytically determined total dissolved (P62854) and total particulate (P49570) nitrogen
00600 CAL12 Total nitrogen in unfiltered water calculated as the sum of total Kjeldahl nitrogen plus nitrate and nitrite
00600 CAL30 Nitrogen (TN) calculated as the sum of Kjeldahl nitrogen (TKN) + nitrate (NO3) + nitrite (NO2)
00600 CAL31 Total nitrogen, water, unfiltered, calculated (USGSVAWC; VA-HRSD)
00600 PSF13 Total nitrogen in unfiltered water by semi-micro-Kjeldahl persulfate oxidation (SM 4500-N C; PA WSC; PA-DEP) STDMETH 4500-N C Standard Methods
00600 PSF15 Total nitrogen in unfiltered water by persulfate method, alkaline oxidation, cadmium reduction, continuous flow analyzer (Standard Methods 4500-N C; USGSVAWC; VA-CLS) STDMETH 4500-N C
00601 CAL27 Total particulate nitrogen (TPN) calculated as the difference between total nitrogen (TN) and total dissolved nitrogen (DN)
00601 CMB02 Elements in suspended sediment by combustion, Georgia WSC Sediment-Partitioning Research Lab Hydrological Processes, 2001, v 15, p 1107-1132
00601 CMB02 Elements in suspended sediment by combustion, Georgia WSC Sediment-Partitioning Research Lab USGS TWRI 5-A1/1989
00601 CMB13 Carbon and nitrogen in sediment and particulates by combustion (EPA 440.0; USGSVAWC; VA-CLS) USEPA 440.0
00602 00141 USGS I-1556-77
00602 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00602 CAL28 Total dissolved nitrogen (TDN) calculated as the sum of dissolved Kjeldahl nitrogen (DKN) and nitrate plus nitrite (DNOx)
00602 CDR12 Total dissolved nitrogen and nitrite, filtered water, persulfate oxidation/cadmium reduction, flow injection analyzer (USGS-NYL)
00602 HYZ01 Nitrate plus nitrite in filtered water by automated hydrazine reduction (Standard Methods 4500-NO3- H; DODESP program) STDMETH 4500-NO3- H
00602 PCL01 Total nitrogen in filtered water by pyrochemiluminescence (CA WSC) SSSAJ, 1996, v 60, p 1050-1055
00602 PSF14 Total nitrogen in filtered water by semi-micro-Kjeldahl persulfate oxidation (SM 4500-N C; PA WSC; PA-DEP) STDMETH 4500-N C Standard Methods
00602 PSF17 Nitrogen in filtered water by alkaline persulfate digestion and colorimetry (USGSVAWC; VA-CLS) Limnol. Oceanogr., 1977, v 22, p 760-764
00602 PYRO1 Pyrochemiluminescence, N, TOT Nitrogen as N, FIL (NWQL)
00602 PYRO2 Total nitrogen in filtered water by pyrochemiluminescence (NWQL) USGS I-2511-90 USGS OF 93-125, p 167
00603 G0026 Total nitrogen, bed sediment, calculated USGS I-5556-77
00603 G0027 Total nitrogen, bottom material, titrimetric, digestion-distillation USGS I-5554-78 USGS OF 78-679, p 959
00603 G0027 Total nitrogen, bottom material, titrimetric, digestion-distillation USGS I-5554-78 USGS TWRI 5-A1/1979, p 599
00605 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00605 B0084 Organic nitrogen, water, unfiltered, calculated USGS I-4548-78
00607 00143 USGS I-2547-78
00607 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00608 00042 N, NH4 as N, FIL
00608 00043 N, NH4 as N, FIL low-level
00608 00048 Nutrients in filtered water, colorimetric, by discrete analyzer
00608 CL003 Colorimetry, automated segmented flow (ASF), Salicylate-hypochlorite, N, Ammonia as N, low-level, unpreserved, FIL
00608 CL015 Ammonia in filtered water by automated phenate colorimetry USEPA 350.1
00608 CL035 Ammonia in filtered water by automated segmented flow (ASF) salicylate/hypochlorite colorimetry USGS I-2522-90 USGS OF 93-125, p 125
00608 CL036 Nutrients, filtered water, acidified (FCA), salicylate/hypochlorite, colorimetric USGS I-2522-90 USGS OF 93-125, p 125
00608 CL037 Nutrients, filtered water, salicylate-hypochlorite, colorimetric USGS I-2522-90 USGS OF 93-125, p 125
00608 CL038 Ammonia in low ionic strength (LIS) water by automated segmented flow (ASF) salicylate/hypochlorite colorimetry USGS I-2525-89 USGS OF 93-125, p 119
00608 CL039 Nutrients, low level, filtered water, salicylate-hypochlorite, colorimetric USGS I-2525-89 USGS OF 93-125, p 119
00608 CL101 Ammonia, low level, in filtered water by automated phenate colorimetry USEPA 350.1 EPA/600/4-79/020
00608 CL143 Ammonia, low level, water, filtered, phenate colorimetry (CO WSC) USEPA 350.1 EPA/600/R-93/100
00608 CL150 Ammonia in filtered water by phenyl phenolate/hypochlorite colorimetry (2-phenylphenolate reagent variant of the Berthelot reaction (indophenol blue)) (NWQL)
00608 CL153 Nutrients in brine by colorimetry
00608 CL172 Ammonia in filtered water by discrete analyzer (DA) phenate method with direct phenol/hypochlorite reagent and indophenol colorimetry (NWQL Kone Schedule)
00608 CL173 Ammonia in filtered water (FCA) by discrete analyzer (DA) salicylate/hypochlorite reaction and colorimetry (NWQL)
00608 CL188 Ammonia in filtered water by semi-automated colorimetry (EPA 350.1 rev2; PA WSC; PA-DEP) USEPA 350.1 r2 1993
00608 ISE09 Ammonia in filtered water by ion selective electrode (SM 4500 NH3 D; DODESP) STDMETH 4500NH3 D
00608 PHH01 Custom method for ammonia in filtered seawater by discrete analyzer phenol-hypochlorite (Berthelot reaction chemistry) colorimetry (NWQL)
00608 PHN01 Ammonia in filtered water by automated phenate colorimetry (EPA 350.1; DODESP) USEPA 350.1
00608 PHN02 Ammonia in filtered water by automated phenate colorimetry (EPA method 350.1; ND WSC) USEPA 350.1
00608 PHN03 Ammonia, low level (LL), water, filtered, flow-injected auto analyzer (FIA) using phenol/hypochlorite reaction and indophenol colorimetry (Standard Methods 4500 NH3 H; WI WSC) STDMETH 4500 NH3 H
00608 PHN04 Ammonia in filtered water by flow injection phenate colorimetry (EPA 350.1; USGSVAWC; VA-CLS) USEPA 350.1
00608 PHN05 Ammonia in filtered water by automated phenate colorimetry (USGS I-4523-85; USGSVAWC; VA-CLS) USGS I-4523-85
00608 PHN06 Ammonia, water, filtered, alkaline phenol?based method, 0.2% H2SO4 preserved samples (Lachat 10-107-06-1-B; USGSVAWC; VA-FCES) LACHAT 10-107-06-1-B
00608 PHN07 Ammonia, water, filtered, alkaline phenol?based method, non-preserved samples (Lachat 10-107-06-1-C; USGSVAWC; VA-HRSD) LACHAT 10-107-06-1-C
00608 S0095
00608 SHC02 Ammonia in filtered water by discrete analyzer salicylate-hypochlorite reaction and colorimetry (formerly Mcode 00048) Harfmann and Crouch, 1989
00608 SHC02 Ammonia in filtered water by discrete analyzer salicylate-hypochlorite reaction and colorimetry (formerly Mcode 00048) Krom, 1980
00608 SHC02 Ammonia in filtered water by discrete analyzer salicylate-hypochlorite reaction and colorimetry (formerly Mcode 00048) Patton and Crouch, 1977
00608 SHC02 Ammonia in filtered water by discrete analyzer salicylate-hypochlorite reaction and colorimetry (formerly Mcode 00048) USGS OF 93-125, p 119-132
00608 SHC03 Ammonia in filtered water, salicylate/hypochlorite reaction and colorimetry (DODESP) USGS I-2522-90
00608 SHC04 Ammonia in filtered water by gas diffusion, salicylate/hypochlorite reaction, and colorimetry with matrix correction (EPA 350.1 rev2; NWQL) USEPA 350.1 rev 2 EPA/600/R-93/100
00610 00080 Whole water nutrients for Ocala cooperators
00610 CL016 Ammonia in unfiltered water by automated phenate colorimetry USEPA 350.1
00610 CL017 Nutrients, unfiltered water, colorimetric USEPA 350.1
00610 CL070 Ammonia in unfiltered water by automated segmented flow (ASF) salicylate/hypochlorite reaction and colorimetry (NWQL) USGS I-4522-85 USGS TWRI 5-A1/1989, p 315
00610 CL071 Ammonia in unfiltered water by automated segmented flow (ASF) salicylate/hypochlorite reaction and colorimetry (Ocala) USGS I-4522-85 USGS TWRI 5-A1/1989, p 315
00610 CL072 Ammonia in unfiltered water by automated segmented flow (ASF) salicylate/hypochlorite reaction and colorimetry (Ocala) USGS I-4522-85 USGS TWRI 5-A1/1989, p 315
00610 CL073 Ammonia in unfiltered water by automated segmented flow (ASF) salicylate/hypochlorite reaction and colorimetry (Ocala) USGS I-4522-85 USGS TWRI 5-A1/1989, p 315
00610 CL074 Ammonia in unfiltered water by automated segmented flow (ASF) salicylate/hypochlorite reaction and colorimetry (Ocala) USGS I-4522-85 USGS TWRI 5-A1/1989, p 315
00610 CL075 Ammonia in unfiltered water by automated segmented flow (ASF) formation of indophenol and colorimetry USGS I-4523-85 USGS TWRI 5-A1/1989, p 321
00610 CL100 Ammonia, low level, in unfiltered water by automated phenate colorimetry USEPA 350.1 EPA/600/4-79/020
00610 CL163 Ammonia, unfiltered water, indophenol blue colorimetry, flow injection analyzer (FIA) (USGS-NYL) USGS OF 95-416
00610 CL174 Ammonia in unfiltered water (WWR) by discrete analyzer (DA) salicylate/hypochlorite reaction and colorimetry (NWQL)
00610 CL189 Ammonia in unfiltered water by semi-automated colorimetry (EPA 350.1 rev2; PA WSC; PA-DEP) USEPA 350.1 r2 1993
00610 CL193 Ammonia, unfiltered water, indophenol blue colorimetry, flow injection analyzer (NY WSC; ALSC)
00610 CL194 Ammonia, unfiltered water, indophenol blue colorimetry, flow injection analyzer (NY WSC; KECK)
00610 SHC01 Nutrients, unfiltered water, salicylate-hypochlorite, colorimetric USGS I-4522-85 USGS TWRI 5-A1/1989, p 315
00611 CL092 Nutrients, bed sediment, salicylate-hypochlorite, colorimetric USGS I-6522-90 USGS OF 93-125, p 125
00611 CL128 Ammonia, solids, automated phenate colorimetry USEPA 350.1 EPA/600/4-79/020
00611 S0096 Ammonia, total in bottom material, by ASF salicylate-hypochlorite colorimetry USGS I-6522-90 USGS OF 93-125, p 125
00613 00049 Nutrients in filtered water by enzymatic reductase colorimetry by discrete analyzer
00613 CDR07 Nitrate & nitrite, water, filtered, colormetric, automated cadmium reduction (DODEC) USEPA 353.2 EPA/600/4-79/020
00613 CDR12 Total dissolved nitrogen and nitrite, filtered water, persulfate oxidation/cadmium reduction, flow injection analyzer (USGS-NYL)
00613 CDR17 Nitrate plus nitrite, and nitrite, water, filtered, cadmium reduction, automated colorimetry (EPA 353.2; USGSVAWC; VA-CLS) USEPA 353.2
00613 CL009 Colorimetry, N, Nitrite as N, FIL (NWQL)
00613 CL011 Colorimetry, N, Nitrite as N, low-level, FIL
00613 CL040 Nitrite in filtered water by automated segmented flow (ASF) diazotization colorimetry USGS I-2540-90 USGS OF 93-125, p 143
00613 CL041 Nutrients, water filtered, colorimetric USGS I-2540-90 USGS OF 93-125, p 143
00613 CL042 Nitrite in low ionic strength (LIS) water, by automated segmented flow (ASF) diazotization colorimetry USGS I-2542-89 USGS OF 93-125, p 137
00613 CL043 Nutrients, low level, filtered water, colorimetric USGS I-2542-89 USGS OF 93-125, p 137
00613 CL111 Nitrite in filtered water by diazotation of sulfanilamide, coupling with N-(1-naphthyl)-ethylenediamine dihydrochloride, and spectrophotometry at 540 nm (EPA method 354.1; DODEC program) USEPA 354.1 EPA/600/4-79/020
00613 CL136 Nitrite in filtered water by coupling diazotized sulfanilamide with N-(1-naphthyl)-ethylenediamine dihydrochloride, and spectrophotometry (Standard Methods 4500-NO2 B; DODEC program) STDMETH 4500-NO2 B Standard Methods
00613 CL148 Nitrate plus nitrite, nitrite, ammonium and orthophosphate ions in filtered water by automated colorimetric methods (NRP and CO WSC) USGS OF 93-638
00613 DZ001 Nitrite, filtered water, discrete analyzer, diazotization and colorimetry (formerly Mcode 00049)
00613 IC005 Ion chrom Nitrite
00613 IC025 Inorganic anions, water, filtered, ion chromatography (DODEC) USEPA 300.0 EPA/600/R-93/100
00613 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) ASTM D6919-03
00613 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00615 00114 NO2 DW USEPA 353.2
00615 00116 Sample was acidified to meet EPA requirement USEPA 354.1
00615 CDR08 Nitrate & nitrite, water, unfiltered, colormetric, automated cadmium reduction (DODEC) USEPA 353.2 EPA/600/4-79/020
00615 CDR20 Nitrate-nitrite, water, unfiltered, automated cadmium reduction and colorimtery (EPA 353.2; USGS-NYL) USEPA 353.2
00615 CL010 Colorimetry, N, Nitrite as N, WWR (NWQL)
00615 CL012 Colorimetry, N, Nitrite as N, low-level, WWR
00615 CL076 Nitrite in unfiltered water by automated segmented flow (ASF) diazotization and colorimetry (NWQL) USGS I-4540-85 USGS TWRI 5-A1/1989, p 343
00615 CL077 Nitrite, low level (LL), in unfiltered water by automated segmented flow (ASF) diazotization and colorimetry USGS I-4540-85 USGS TWRI 5-A1/1989, p 343
00615 CL078 Nitrite in unfiltered water by automated segmented flow (ASF) diazotization and colorimetry (a 48-hour sample holding time was enforced for this method) USGS I-4540-85 USGS TWRI 5-A1/1989, p 343
00615 CL079 Nitrite, low level (LL), in unfiltered water by automated segmented flow (ASF) diazotization and colorimetry (a 48-hour sample holding time was enforced for this method) USGS I-4540-85 USGS TWRI 5-A1/1989, p 343
00615 CL080 Nitrite in unfiltered water by automated segmented flow (ASF) diazotization and colorimetry (Ocala) USGS I-4540-85 USGS TWRI 5-A1/1989, p 343
00615 CL110 Nitrite in unfiltered water by diazotation of sulfanilamide, coupling with N-(1-naphthyl)-ethylenediamine dihydrochloride, and spectrophotometry at 540 nm (EPA method 354.1; DODEC program) USEPA 354.1 EPA/600/4-79/020
00615 CL135 Nitrite in unfiltered water by coupling diazotized sulfanilamide with N-(1-naphthyl)-ethylenediamine dihydrochloride, and spectrophotometry (Standard Methods 4500-NO2 B; DODEC program) STDMETH 4500-NO2 B Standard Methods
00615 IC026 Inorganic anions, water, unfiltered, ion chromatography (DODEC, EPA 300.0) USEPA 300.0 EPA/600/R-93/100
00615 IC028 Anions in unfiltered water by ion chromatography (DODEC, EPA 9056) USEPA 9056 EPA SW-846
00615 IC059 Inorganic anions in unfiltered water by ion chromatography (EPA 300.0; PA WSC; PA-DEP) USEPA 300.0
00616 CL008 Colorimetry, N, Nitrite as N, BTM
00616 IC042 Inorganic anions in bed sediment by ion chromatography (EPA 9056A; DODESP) USEPA 9056A
00618 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00618 CAL08 Computation by NWIS algorithm USGS I-1531-78 NWIS User's Manual, QW System, Appendix
00618 CAL26 Nitrate in filtered water calculated as the difference between Pcodes 00631 and 00613
00618 CDR07 Nitrate & nitrite, water, filtered, colormetric, automated cadmium reduction (DODEC) USEPA 353.2 EPA/600/4-79/020
00618 CL006 Colorimetry, N as Nitrate, low-level, FIL
00618 IC004 Ion chrom Nitrate
00618 IC024 Anions, low ionic strength (<100uS/cm), filtered water, ion chromatography USGS I-2058-85 USGS TWRI 5-A1/1989, p 527
00618 IC025 Inorganic anions, water, filtered, ion chromatography (DODEC) USEPA 300.0 EPA/600/R-93/100
00618 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) ASTM D6919-03
00618 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00618 IC034 Anions, filtered water, ion chromatography with ion suppression (USGS-NYL) USGS OF 95-416
00618 IC043 Major anions in filtered water by ion chromatography (USGSTMCO) USGS OF 95-426A
00618 IC062 Anions, filtered water, ion chromatography (USGSNYWC; ALSC)
00618 IC063 Anions, filtered water, ion chromatography (USGSNYWC; KECK)
00618 IC066 Inorganic anions, water, filtered, by ion chromatography (USEPA 300.0; USGSTMCO) USEPA 300.0
00620 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00620 CDR08 Nitrate & nitrite, water, unfiltered, colormetric, automated cadmium reduction (DODEC) USEPA 353.2 EPA/600/4-79/020
00620 CDR20 Nitrate-nitrite, water, unfiltered, automated cadmium reduction and colorimtery (EPA 353.2; USGS-NYL) USEPA 353.2
00620 CL005 Colorimetry, N as Nitrate, WWR
00620 CL007 Colorimetry, N as Nitrate, low-level, WWR
00620 IC026 Inorganic anions, water, unfiltered, ion chromatography (DODEC, EPA 300.0) USEPA 300.0 EPA/600/R-93/100
00620 IC028 Anions in unfiltered water by ion chromatography (DODEC, EPA 9056) USEPA 9056 EPA SW-846
00620 IC059 Inorganic anions in unfiltered water by ion chromatography (EPA 300.0; PA WSC; PA-DEP) USEPA 300.0
00621 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00621 CL004 Colorimetry, N as Nitrate, BTM
00621 IC017 Inorganic Anions by IC USEPA 9056A EPA SW-846, Draft Update IVB, Method 9056A
00621 IC042 Inorganic anions in bed sediment by ion chromatography (EPA 9056A; DODESP) USEPA 9056A
00623 00044 N, NH4+OGR as N, FIL
00623 CL051 Ammonia plus organic nitrogen in filtered water by automated segmented flow (ASF) block digestion with sulfuric acid/mercuric sulfate, reaction with salicylate/hypochlorite, and colorimetry USGS I-2552-85 USGS TWRI 5-A1/1989, p 327
00623 CL061 Total phosphorus in filtered water by microkjeldahl digestion, and automated segmented flow (ASF) dialysis and colorimetry USGS I-2610-91 USGS OF 92-146
00623 KJ002 Ammonia plus organic nitrogen, filtered water, Kjeldahl digestion, continuous flow (CF) colorimetry USGS I-2515-91 USGS OF 00-170
00623 KJ003 Ammonia plus organic nitrogen, filtered water, Kjeldahl digestion, continuous flow (CF) colorimetry USGS I-2515-91 USGS OF 00-170
00623 KJ016 Ammonia plus organic nitrogen in filtered water by Kjeldahl analysis USEPA 351.2 EPA/600/4-79/020
00623 KJ021 Ammonia plus organic nitrogen, filtered water, Kjeldahl digestion, colorimetry by discrete analyzer
00623 KJ022 Ammonia plus organic nitrogen, filtered water, acidified (FCA), Kjeldahl digestion, colorimetry by discrete analyzer
00623 KJ027 Ammonia plus organic nitrogen, water, filtered, Kjeldahl digestion with mercury catalyst (Lachat 10-107-06-2-E; USGSVAWC; VA-FCES) LACHAT 10-107-06-2-E
00623 KJ031 Kjeldahl nitrogen, water, filtered, colorimetry (PA WSC; PA-DEP) USEPA 351.2
00624 00001 AMMONIA+ORGANIC-N,SUS
00625 CAL20 Ammonia plus organic nitrogen in unfiltered water, sum of organic nitrogen by macro-Kjeldahl and ammonia by distillation and titration (STDMETH 4500Norg B and 4500-NH3 B&C; PA WSC; lab PA-FLA) STDMETH 4500-Norg B
00625 CAL20 Ammonia plus organic nitrogen in unfiltered water, sum of organic nitrogen by macro-Kjeldahl and ammonia by distillation and titration (STDMETH 4500Norg B and 4500-NH3 B&C; PA WSC; lab PA-FLA) STDMETH 4500-NH3 B&C
00625 CL083 Ammonia plus organic nitrogen in unfiltered water by automated segmented flow (ASF) block digestion with sulfuric acid-mercuric sulfate, reaction with salicylate-hypochlorite, and colorimetry USGS I-4552-85 USGS TWRI 5-A1/1989, p 327
00625 CL144 Ammonia plus organic nitrogen, water, unfiltered, Kjeldahl colorimetry (CO WSC) USEPA 351.2 EPA/600/4-79/020
00625 KJ001 Ammonia plus organic nitrogen in unfiltered water by Kjeldahl analysis USEPA 351.2
00625 KJ006 Ammonia Plus Organic Nitrogen in Unfiltered Water by Microkjeldahl Digestion, and ASF Gas Diffusion Cleanup and Colorimetry USGS I-4515-91 USGS OF 00-170
00625 KJ007 Ammonia Plus Organic Nitrogen in Unfiltered Water by Microkjeldahl Digestion, and ASF Gas Diffusion Cleanup and Colorimetry USGS I-4515-91 USGS OF 00-170
00625 KJ008 Ammonia plus organic nitrogen, unfiltered water, acidified (WCA), Kjeldahl digestion, continuous flow colorimetry USGS I-4515-91 USGS OF 00-170
00625 KJ023 Ammonia plus organic nitrogen, unfiltered water, acidified (WCA), Kjeldahl digestion, colorimetry by discrete analyzer
00625 KJ025 Ammonia plus organic nitrogen in unfiltered water by semi-micro Kjeldahl method (STDMETH 4500Norg C; ASTM D6919-09; PA WSC; lab PA-FLA) STDMETH 4500-Norg C
00625 KJ025 Ammonia plus organic nitrogen in unfiltered water by semi-micro Kjeldahl method (STDMETH 4500Norg C; ASTM D6919-09; PA WSC; lab PA-FLA) ASTM D6919-09
00625 KJ026 NH3+org-N, water, unfiltered, flow-injected auto analyzer (FIA) using Kjeldahl analysis (EPA 351.2; WI WSC) USEPA 351.2
00625 KJ028 Ammonia plus organic nitrogen, water, unfiltered, Kjeldahl digestion with mercury catalyst (Lachat 10-107-06-2-E; USGSVAWC; VA-FCES) LACHAT 10-107-06-2-E
00625 KJ029 Total Kjeldahl nitrogen (TKN), water, unfiltered, by Kjeldahl digestion, salicylate/nitroprusside, copper catalyst (Lachat 10-107-06-2-I; USGSVAWC; VA-HRSD) LACHAT 10-107-06-2-I
00625 KJ030 Kjeldahl nitrogen, water, unfiltered, potassium and mercury sulfate digestion, and colorimetry (PA WSC; PA-DEP) USEPA 351.2
00625 S0097
00626 CL093 Ammonia plus organic nitrogen in bottom material by automated segmented flow (ASF) block digestion with sulfuric acid-mercuric sulfate, reaction with salicylate-hypochlorite, and colorimetry USGS I-6552-85 USGS TWRI 5-A1/1989, p 327
00626 G0028 Nitrogen, ammonia plus organic, total in bottom material, colorimetric, block digestor-salicylate-hypochlorite, automated USGS I-6552-78 USGS OF 78-679, p 669
00626 G0028 Nitrogen, ammonia plus organic, total in bottom material, colorimetric, block digestor-salicylate-hypochlorite, automated USGS I-6552-78 USGS TWRI 5-A1/1979, p 401
00626 KJ017 Total Kjeldhal nitrogen (TKN), solids, colorimetry USEPA 351.2 EPA/600/4-79/020
00630 00080 Whole water nutrients for Ocala cooperators
00630 00113 NO2 + NO3 DW USEPA 353.2
00630 00115 NITROGEN NO2+NO3-N TOTAL LL USEPA 353.2
00630 CDR02 Nitrate plus nitrite in unfiltered water by automated cadmium reduction and colorimetry USEPA 353.2
00630 CDR03 Nutrients, unfiltered water, cadmium-reduction, colorimetric USGS I-4545-85 USGS TWRI 5-A1/1989, p 351
00630 CDR04 Nitrate plus nitrite, low level, in unfiltered water by automated cadmium reduction and colorimetry USEPA 353.2 EPA/600/4-79/020
00630 CDR15 Nitrate+nitrite in unfiltered water by automated cadmium reduction and colorimetry (EPA 353.2 rev2; PA WSC; PA-DEP) USEPA 353.2 r2 1993
00630 CDR20 Nitrate-nitrite, water, unfiltered, automated cadmium reduction and colorimtery (EPA 353.2; USGS-NYL) USEPA 353.2
00630 CL001 Automated-segmented flow, colorimetric
00630 CL081 Nitrite plus nitrate in unfiltered water by automated segmented flow (ASF) cadmium reduction, diazotization, and colorimetry (NWQL) USGS I-4545-85 USGS TWRI 5-A1/1989, p 351
00630 CL082 Nitrite plus nitrate in unfiltered water by automated segmented flow (ASF) cadmium reduction, diazotization, and colorimetry (Ocala) USGS I-4545-85 USGS TWRI 5-A1/1989, p 351
00630 CL131 Nitrate plus nitrite, low level, in unfiltered water by hydrazine reduction method and colorimetry USEPA 353.1 EPA/600/4-79/020
00630 CL133 Nitrate plus nitrite, low level, in unfiltered water by hydrazine reduction/ sodium pyrophosphate method and colorimetry USEPA 353.1 EPA/600/4-79/020
00630 HYZ02 Nitrate plus nitrite in unfiltered water by automated hydrazine reduction (Standard Methods 4500-NO3- H; DODESP program) STDMETH 4500-NO3- H
00630 IC026 Inorganic anions, water, unfiltered, ion chromatography (DODEC, EPA 300.0) USEPA 300.0 EPA/600/R-93/100
00630 S0098 Nitrite plus nitrate, water, unfiltered, colorimetric, hydrazine reduction-diazotization, automated-discrete USGS I-4543-83
00630 S0098 Nitrite plus nitrate, water, unfiltered, colorimetric, hydrazine reduction-diazotization, automated-discrete USGS I-4543-85 USGS TWRI 5-A1/1989, p 355
00631 00045 NO2+NO3-D HYD DSCRT
00631 00046 NO2+NO3DLL HYD DSCRT
00631 00112 Colorimetric, Automated, Cd Reduction USEPA 353.2 EPA/600/4-79/020
00631 CDR05 Nitrate plus nitrite, low level, in filtered water by automated cadmium reduction and colorimetry USEPA 353.2 EPA/600/4-79/020
00631 CDR06 Nitrate plus nitrite in filtered water by automated cadmium reduction and colorimetry USEPA 353.2 EPA/600/4-79/020
00631 CDR14 Nitrate plus nitrite, water, filtered, flow-injected auto analyzer (FIA) using cadmium reduction and colorimetry (Standard Methods 4500 NO3 I; WI WSC) STDMETH 4500 NO3 I
00631 CDR16 Nitrate+nitrite in filtered water by automated cadmium reduction and colorimetry (EPA 353.2 rev2; PA WSC; PA-DEP) USEPA 353.2 r2 1993
00631 CDR17 Nitrate plus nitrite, and nitrite, water, filtered, cadmium reduction, automated colorimetry (EPA 353.2; USGSVAWC; VA-CLS) USEPA 353.2
00631 CDR18 Nitrate plus nitrite, water, filtered, cadmium reduction, low?flow (LF) method (Lachat 10-107-04-1-A; USGSVAWC; VA-FCES) LACHAT 10-107-04-1-A
00631 CDR19 Nitrate plus nitrite, water, filtered, cadmium reduction, low?flow (LF) method (Lachat 10-107-04-1-A; USGSVAWC; VA-HRSD) LACHAT 10-107-04-1-A
00631 CL044 Nitrite plus nitrate in filtered water by automated segmented flow (ASF) cadmium reduction, diazotization, and colorimetry USGS I-2545-85 USGS TWRI 5-A1/1989, p 351
00631 CL045 Nitrite plus nitrate in filtered water by automated segmented flow (ASF) cadmium reduction-diazotization colorimetry USGS I-2545-90 USGS OF 93-125, p 157
00631 CL047 Nutrients, filtered water, acidified (FCA), cadmium-reduction, colorimetric USGS I-2545-90 USGS OF 93-125, p 157
00631 CL048 Nutrients, filtered water, cadmium-reduction, colorimetric USGS I-2545-90 USGS OF 93-125, p 157
00631 CL049 Nitrite plus nitrate in low ionic strength (LIS) water by automated segmented flow (ASF) cadmium reduction-diazotization colorimetry USGS I-2546-91 USGS OF 93-125, p 149
00631 CL050 Nutrients, low level (LL), filtered water, cadmium-reduction, colorimetric USGS I-2546-91 USGS OF 93-125, p 149
00631 CL114 New Method, water, filtered, acidified (FCA), colorimetry, discrete analyzer (DA), enzyme reduction-diazotization (ERD)
00631 CL115 New Method, water, filtered, colorimetry, continuous flow analyzer (CFA), enzyme reduction-diazotization (ERD)
00631 CL116 New Method, low level (LL), water, filtered, colorimetry, continuous flow analyzer (CFA), enzyme reduction-diazotization (ERD)
00631 CL117 New Method, water, filtered, acidified (FCA), colorimetry, continuous flow analyzer (CFA), enzyme reduction-diazotization (ERD)
00631 CL118 New Method, water, filtered, colorimetry, semiautomated batch enzymatic reduction-diazotization (ERD)
00631 CL119 New Method, water, filtered, acifified (FCA), colorimetry, semiautomated batch enzymatic reduction-diazotization (ERD)
00631 CL120 Custom NWQL Labcode 8104 -- Unfiltered Acidified (at lab) Nitrate for National Cancer Institute
00631 CL132 Nitrate plus nitrite, low level, in filtered water by hydrazine reduction method and colorimetry USEPA 353.1 EPA/600/4-79/020
00631 CL134 Nitrate plus nitrite, low level, in filtered water by hydrazine reduction/ sodium pyrophosphate method and colorimetry USEPA 353.1 EPA/600/4-79/020
00631 CL145 Nitrate plus nitrite, low level, water, filtered, hydrazine colorimetry (CO WSC) USEPA 353.1 EPA/600/4-79/020
00631 HYZ01 Nitrate plus nitrite in filtered water by automated hydrazine reduction (Standard Methods 4500-NO3- H; DODESP program) STDMETH 4500-NO3- H
00631 IC025 Inorganic anions, water, filtered, ion chromatography (DODEC) USEPA 300.0 EPA/600/R-93/100
00631 RED01 Nitrate + nitrite, filtered water, enzymatic reduction, Griess Reaction colorimetry, automated discrete analyzer, standard range
00631 RED02 Nitrate + nitrite, filtered water, enzymatic reduction, Griess Reaction colorimetry, automated discrete analyzer, low range
00631 RED03 Nitrate + nitrite, filtered-acidified water, enzymatic reduction, Griess Reaction colorimetry, automated discrete analyzer
00631 RED04 Nitrate + nitrite, filtered water, enzymatic reduction, Griess Reaction colorimetry, continuous flow analyzer
00631 RED05 Nitrate + nitrite, filtered-acidified water, enzymatic reduction, Griess Reaction colorimetry, continuous flow analyzer
00631 RED06 Nitrate + nitrite, filtered or filtered-acidified, semi-automated batch enzymatic reduction, Griess Reaction colorimetry
00631 RED10 Nitrate + nitrite, water, filtered, colorimetry, segmented flow analyzer, enzymatic reduction-diazotization USGS I-2531-12
00631 RED11 Nitrate + nitrite, low level, water, filtered, colorimetry, segmented flow analyzer, enzymatic reduction-diazotization USGS I-2532-12
00631 RED12 Nitrate + nitrite, colorimetry, water, filtered, acidified, segmented flow analyzer, enzymatic reduction-diazotization USGS I-2531-12
00631 RED13 Nitrate + nitrite, water, filtered, colorimetry, semiautomated batch enzymatic reduction-diazotization USGS I-1531-12
00631 RED14 Nitrate + nitrite, low-level, water, filtered, colorimetry, semiautomated batch enzymatic reduction-diazotization USGS I-1532-12
00631 RED15 Nitrate + nitrite, water, filtered, acidified, colorimetry, semiautomated batch enzymatic reduction-diazotization USGS I-1531-12
00631 S0099
00633 CDR10 Nitrate plus nitrite, solids, cadmium reduction, colorimetry USEPA 353.2 EPA/600/4-79/020
00633 CL046 Nutrients, bed sediment, cadmium-reduction, colorimetric USGS I-6545-90 USGS OF 93-125, p 157
00633 G0029
00650 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00653 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) ASTM D6919-03
00653 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00660 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00660 ASC16 Orthophosphate, water, filtered, ascorbic acid method, molybdenum blue colorimetry (Standard Methods 4500-P E; USGS-NYL) STDMETH 4500-P E
00660 CL167 Phosphate, water, field, CHEMetrics vanadomolybdo-phosphoric acid colorimetry test kit CHEMetrics V-2000 Photometer Manual, Rev. 16
00660 CL168 Phosphate, water, field, CHEMetrics stannous chloride colorimetry test kit CHEMetrics V-2000 Photometer Manual, Rev. 16
00660 G0030 Orthophosphate, water, filtered, calculated USGS I-2604-77
00660 IC025 Inorganic anions, water, filtered, ion chromatography (DODEC) USEPA 300.0 EPA/600/R-93/100
00662 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00665 00118 PHOSPHORUS AS P TOT LL (EPA) USEPA 365.3
00665 AKP01 Nutrients, unfiltered water, acidified, alkaline-persulfate digestion, continuous flow colorimetry USGS I-4650-03 USGS WRI 03-4174
00665 ASC03 All forms of phosphorous in unfiltered water by single reagent ascorbic acid colorimetry (EPA 365.2; DODESP) USEPA 365.2
00665 ASC04 Phosphorus, low level (LL), in unfiltered water by automated ascorbic acid reduction and colorimetry (DODESP program) USEPA 365.2
00665 ASC07 Phosphorus in unfiltered water by automated ascorbic acid reduction and colorimetry (Standard Methods 4500-P F; DODESP program) STDMETH 4500-P F
00665 ASC14 Phosphorus in unfiltered water by semi-automated ascorbic acid colorimetry (EPA 365.4; USGSVAWC; VA-CLS) USEPA 365.4
00665 CL001 Automated-segmented flow, colorimetric
00665 CL021 Phosphorus, unfiltered water, acidified, acid-persulfate digestion, continuous flow (CF) colorimetry USEPA 365.1
00665 CL023 Phosphorus in unfiltered water by persulfate digestion and acid hydrolysis, and colorimetry USEPA 365.3
00665 CL024 Phosphorus, Total - Colorimetric/Automated USEPA 365.4 EPA/600/4-79/020
00665 CL084 Phosphorus in unfiltered water by ASF phosphomolybdate formation and colorimetry USGS I-4600-85 USGS TWRI 5-A1/1989, p 367
00665 CL090 Phosphorus, total in unfiltered low ionic strength water, by automated-segmented flow (ASF) phosphomolybdate colorimetry USGS I-4607-90 USGS OF 93-125, p 175
00665 CL104 Orthophosphate in unfiltered water by two reagent ascorbic acid colorimetry USEPA 365.3 EPA/600/4-79/020
00665 CL106 Phosphorus, low level, in unfiltered water by automated ascorbic acid colorimetry USEPA 365.1 EPA/600/4-79/020
00665 CL146 Phosphorus, low level, water, unfiltered, persulfate colorimetry (CO WSC) USEPA 365.3 EPA/600/4-79/020
00665 CL153 Nutrients in brine by colorimetry
00665 CL159 Phosphorus, unfiltered water, automated, block digester, digestion with H2SO4, K2SO4 and HgSO4, colorimetry (EPA 365.4; DODEC program) USEPA 365.4
00665 CL179 Phosphorus, water, unfiltered, flow-injected auto analyzer (FIA) using H2SO4, K2S04, and HgSO4 (EPA 365.4) digestion and hydrolysis, and colorimetry (WI WSC) USEPA 365.4
00665 KJ009 Total Phosphorus in Unfiltered Water by Microkjeldahl Digestion, and ASF Dialysis and Colorimetry (unfiltered sample, preserved by chilling only prior to 1-1-1999, preserved with sulfuric acid 1-1-1999 to present; see OWQ Tech Memo 99.04) USGS I-4610-91 USGS OF 92-146
00665 KJ010 Total Phosphorus in Unfiltered Water by Microkjeldahl Digestion, and ASF Dialysis and Colorimetry (unfiltered sample preserved with mercuric chloride, discontinued 10-01-1994; see OWQ Tech Memo 94.16) USGS I-4610-91 USGS OF 92-146
00665 KJ011 Total Phosphorus in Unfiltered Water by Microkjeldahl Digestion, and ASF Dialysis and Colorimetry (unfiltered sample preserved with sulfuric acid; this method code was discontinued because it duplicated KJ009 with preservation change) USGS I-4610-91 USGS OF 92-146
00665 KJ020 Phosphorus, unfiltered water, acidified (WCA), Kjeldahl digestion, colorimetry by discrete analyzer
00665 PHM02 Phosphorus in unfiltered water, phosphomolybdate formation and colorimetry (DODESP) USGS I-4600-85
00665 PHM03 Phosphorus in unfiltered water by semi-automated phosphomolybdate colorimetry (EPA 365.1 rev2; PA WSC; PA-DEP) USEPA 365.1 r2 1993
00665 PHM05 Phosphorus, water, unfiltered, manual acidic persulfate digestion, molybdate based method (Lachat 10-115-01-1-E; USGSVAWC; VA-HRSD) LACHAT 10-115-01-1-E
00665 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00665 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00665 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00665 PLO06 Trace elements in unfiltered water by inductively coupled plasma-optical emmission spectroscopy (USGSTMCO) USGS OF 98-165
00665 PSF03 Nutrients, unfiltered water, acidified, alkaline-persulfate digestion, colorimetry by discrete analyzer
00665 PSF06 Phosphorus, unfiltered water, acidified, acid-persulfate digestion, colorimetry by discrete analyzer
00665 PSF07 Phosphorus in unfiltered brines, acid-persulfate digestion, colorimetry by discrete analyzer (NWQL custom method for seawater)
00665 PSF10 Phosphorus in unfiltered brines, acid-persulfate digestion, colorimetry by continuous flow analyzer with matrix matching (NWQL custom method for brines) USEPA 365.1 EPA/600/R-93/100
00665 SNCL1 Phosphorus, water, unfiltered, by digestion, stannous chloride reduction, and molybdenum blue colorimetry (Standard Methods 425C and 425E; USGSVAWC; VA-FCES) STDMETH 425C (1975)
00665 SNCL1 Phosphorus, water, unfiltered, by digestion, stannous chloride reduction, and molybdenum blue colorimetry (Standard Methods 425C and 425E; USGSVAWC; VA-FCES) STDMETH 425E (1975)
00666 00117 PHOSPHORUS AS P DISS LL (EPA) USEPA 365.3
00666 ASC02 All forms of phosphorous in filtered water by single reagent ascorbic acid colorimetry (EPA 365.2; DODESP) USEPA 365.2
00666 ASC05 Phosphorus, low level (LL), in filtered water by automated ascorbic acid reduction and colorimetry (DODESP program) USEPA 365.2
00666 CL019 Phosphorus, filtered water, acidified, acid-persulfate digestion, continuous flow (CF) colorimetry USEPA 365.1
00666 CL020 Phosphorus, filtered water, acid-persulfate digestion, continuous flow (CF) colorimetry USEPA 365.1
00666 CL022 Phosphorus in filtered water by persulfate digestion and acid hydrolysis, and colorimetry USEPA 365.3
00666 CL052 Phosphorus, dissolved, colorimetric, phosphomolybdate, automated USGS I-2600-78 USGS TWRI 5-A1/1979, p 453
00666 CL059 Phosphorus in low ionic-strength (LIS) water by automated segmented flow (ASF) phosphomolybdate colorimetry USGS I-2607-90 USGS OF 93-125, p 175
00666 CL060 Phosphorus in low ionic-strength (LIS) water by automated segmented flow (ASF) phosphomolybdate colorimetry USGS I-2607-90 USGS OF 93-125, p 175
00666 CL061 Total phosphorus in filtered water by microkjeldahl digestion, and automated segmented flow (ASF) dialysis and colorimetry USGS I-2610-91 USGS OF 92-146
00666 CL062 Nutrients, filtered water, acidified, alkaline-persulfate digestion, continuous flow (CF) colorimetry USGS I-2650-03 USGS WRI 03-4174
00666 CL063 Nutrients, filtered water, alkaline-persulfate digestion, continuous flow (CF) colorimetry USGS I-2650-03 USGS WRI 03-4174
00666 CL105 Orthophosphate in filtered water by two reagent ascorbic acid colorimetry USEPA 365.3 EPA/600/4-79/020
00666 CL107 Phosphorus, low level, in filtered water by automated ascorbic acid colorimetry USEPA 365.1 EPA/600/4-79/020
00666 CL153 Nutrients in brine by colorimetry
00666 CL154 Custom analysis for nutrients in filtered brines by colorimetry
00666 KJ004 Phosphorus, filtered water, acidified (FCA), Kjeldahl digestion, continuous flow (CF) colorimetry USGS I-2610-91 USGS OF 92-146
00666 KJ005 Phosphorus, filtered water, Kjeldahl digestion, continuous flow (CF) colorimetry USGS I-2610-99 USGS OF 92-146
00666 KJ018 Phosphorus, filtered water, Kjeldahl digestion, colorimetry by discrete analyzer
00666 KJ019 Phosphorus, filtered water, acidified (FCA), Kjeldahl digestion, colorimetry by discrete analyzer
00666 PHM04 Phosphorus in filtered water by semi-automated phosphomolybdate colorimetry (EPA 365.1 rev2; PA WSC; PA-DEP) USEPA 365.1 r2 1993
00666 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00666 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00666 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00666 PLO05 Trace and major elements, dissolved iron and silica in aqueous media by inductively coupled plasma-optical emmission spectroscopy (USGSTMCO)
00666 PSF01 Nutrients, filtered water, alkaline-persulfate digestion, colorimetry by discrete analyzer
00666 PSF02 Nutrients, filtered water, acidified, alkaline-persulfate digestion, colorimetry by discrete analyzer
00666 PSF04 Phosphorus, filtered water, acid-persulfate digestion, colorimetry by discrete analyzer
00666 PSF05 Phosphorus, filtered water, acidified, acid-persulfate digestion, colorimetry by discrete analyzer
00666 PSF08 Phosphorus in filtered brines, acid-persulfate digestion, colorimetry by discrete analyzer (NWQL custom method for seawater)
00666 PSF09 Phosphorus in filtered brines, acid-persulfate digestion, colorimetry by continuous flow analyzer with matrix matching (NWQL custom method for brines) USEPA 365.1 EPA/600/R-93/100
00666 PSF16 Phosphorus in filtered water by Standard Methods 4500N C for persulfate digestion and then analyzed by colorimetry following EPA method 365.1 (USGSVAWC; VA-CLS) STDMETH 4500N C
00666 PSF16 Phosphorus in filtered water by Standard Methods 4500N C for persulfate digestion and then analyzed by colorimetry following EPA method 365.1 (USGSVAWC; VA-CLS) USEPA 365.1
00666 S0100
00666 SNCL2 Phosphorus, water, filtered, by digestion, stannous chloride reduction, and molybdenum blue colorimetry (Standard Methods 425C and 425E; USGSVAWC; VA-FCES) STDMETH 425C (1975)
00666 SNCL2 Phosphorus, water, filtered, by digestion, stannous chloride reduction, and molybdenum blue colorimetry (Standard Methods 425C and 425E; USGSVAWC; VA-FCES) STDMETH 425E (1975)
00667 CAL29 Total particulate phosphorus (TPP) calculated as the difference between total phosphorus (TP) and dissolved phosphorus (DP)
00667 CL197 Particulate phosphorus in water by semi-automated flow colorimetry (USGSVAWC; VA-CLS) Analyst, 1976, v 101, p 187-197
00668 00004 Determination of Elements in Reservoir and Lake Sediments for the NAWQA Reconstructed Trends National Systhesis by the USGS NRP Laboratory (Ted Callendar) in Reston, Virginia
00668 ASC08 Phosphorus in bed sediment by automated ascorbic acid reduction and colorimetry (Standard Methods 4500-P F; DODESP program) STDMETH 4500-P F
00668 CL094 Phosphorus in bottom material by automated segmented flow (ASF) phosphomolybdate formation and colorimetry USGS I-6600-85 USGS TWRI 5-A1/1989, p 367
00668 CL129 Phosphorus, solids, ascorbic acid colorimetry USEPA 365.3 EPA/600/4-79/020
00668 G0031 Phosphorus, total in bottom material, colorimetric, phosphomolybdate, automated USGS I-6600-78 USGS OF 78-679, p 805
00668 G0031 Phosphorus, total in bottom material, colorimetric, phosphomolybdate, automated USGS I-6600-78 USGS TWRI 5-A1/1979, p 487
00668 PLM01 NAWQA Geologic Division Bed Sediment ICPMS 4 Acid Digestion - VanMetre Protocol (NWQL Schedule 3197) USGS OF 02-223
00669 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00669 G0032 Hydrolyzable phosphorus, water, unfiltered, automated phosphomolybdate colorimetry USGS I-4602-78 USGS OF 78-679, p 769
00669 G0032 Hydrolyzable phosphorus, water, unfiltered, automated phosphomolybdate colorimetry USGS I-4602-78 USGS TWRI 5-A1/1979, p 463
00670 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00670 G0033 Organic phosphorus, water, unfiltered, colorimetric, calculation USGS I-4603-78 USGS OF 78-679, p 785
00670 G0033 Organic phosphorus, water, unfiltered, colorimetric, calculation USGS I-4603-78 USGS TWRI 5-A1/1979, p 473
00671 00048 Nutrients in filtered water, colorimetric, by discrete analyzer
00671 00058 P, Ortho-P as P, FIL low-level
00671 00081 non-std preservation (freezing)
00671 00119 PHOSPHORUS PO4-P DIS LL EPA USEPA 365.3
00671 ASC11 Orthophosphate, low level (LL), in filtered water and preserved with H2SO4, flow-injected auto analyzer (FIA) using ascorbic acid reduction and colorimetry (Standard Methods 4500 P G; WI WSC) STDMETH 4500 P G
00671 ASC12 Orthophosphate, low level, in filtered water by two reagent ascorbic acid colorimetry (EPA 365.3, DODESP) USEPA 365.3
00671 ASC15 Orthophosphate, water, filtered, ascorbic acid method (Hach 8048; USGSVAWC; VA-FCES) HACH 8048
00671 ASC16 Orthophosphate, water, filtered, ascorbic acid method, molybdenum blue colorimetry (Standard Methods 4500-P E; USGS-NYL) STDMETH 4500-P E
00671 CL002 Colorimetry, automated segmented flow (ASF), Phosphomolybdate, P, Orthophosphate as P, low-level, unpreserved, FIL
00671 CL053 Nutrients, filtered water, phosphomolybdate, colorimetric USGS I-2601-90 USGS OF 93-125, p 197
00671 CL054 Orthophosphate in filtered water by automated segmented flow (ASF) phosphomolybdate colorimetry USGS I-2601-90 USGS OF 93-125, p 197
00671 CL057 Nutrients, low level (LL), filtered water, phosphomolybdate, colorimetric USGS I-2606-89 USGS OF 93-125, p 191
00671 CL058 Orthophosphate in low ionic-strength (LIS) water by automated segmented flow (ASF) phosphomolybdate colorimetry USGS I-2606-89 USGS OF 93-125, p 191
00671 CL103 Orthophosphate, low level, in filtered water by automated ascorbic acid colorimetry USEPA 365.1 EPA/600/4-79/020
00671 CL105 Orthophosphate in filtered water by two reagent ascorbic acid colorimetry USEPA 365.3 EPA/600/4-79/020
00671 CL127 Orthophosphate, water, filtered, ascorbic acid colorimetry (DODEC) USEPA 365.3 EPA/600/4-79/020
00671 CL147 Orthophosphate, low level, water, filtered, ascorbic colorimetry (CO WSC) STDMETH 4500-PE Standard Methods
00671 CL167 Phosphate, water, field, CHEMetrics vanadomolybdo-phosphoric acid colorimetry test kit CHEMetrics V-2000 Photometer Manual, Rev. 16
00671 CL168 Phosphate, water, field, CHEMetrics stannous chloride colorimetry test kit CHEMetrics V-2000 Photometer Manual, Rev. 16
00671 CL198 Orthophosphate, water, filtered, semi-automated colorimetry (EPA 365.1; USGSVAWC; VA-CLS) USEPA 365.1
00671 IC006 Ion chrom Phosphate
00671 IC024 Anions, low ionic strength (<100uS/cm), filtered water, ion chromatography USGS I-2058-85 USGS TWRI 5-A1/1989, p 527
00671 IC025 Inorganic anions, water, filtered, ion chromatography (DODEC) USEPA 300.0 EPA/600/R-93/100
00671 PHM01 Orthophosphate in filtered water by discrete analyzer phosphomolybdate formation and colorimetry (formerly Mcode 00048) Murphy and Riley, 1962
00671 PHM01 Orthophosphate in filtered water by discrete analyzer phosphomolybdate formation and colorimetry (formerly Mcode 00048) Pai and others, 1990
00671 PHM01 Orthophosphate in filtered water by discrete analyzer phosphomolybdate formation and colorimetry (formerly Mcode 00048) USGS OF 93-125, p 175-181 & 191-202
00671 PHM04 Phosphorus in filtered water by semi-automated phosphomolybdate colorimetry (EPA 365.1 rev2; PA WSC; PA-DEP) USEPA 365.1 r2 1993
00671 PHM06 Orthophosphate, water, filtered, molybdate method (Lachat 10-115-01-1-A; USGSVAWC; VA-HRSD) LACHAT 10-115-01-1-A
00671 S0101
00671 S0102
00672 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00672 CL170 Hydrolyzable phosphorus, water, filtered, automated ascorbic-acid reduction method STDMETH 4500-P F
00672 G0034 Hydrolyzable phosphorus, water, filtered, automated phosphomolybdate colorimetry USGS I-2602-78 USGS OF 78-679, p 763
00672 G0034 Hydrolyzable phosphorus, water, filtered, automated phosphomolybdate colorimetry USGS I-2602-78 USGS TWRI 5-A1/1979, p 459
00673 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00673 G0035 Organic phosphorus, water, filtered, colorimetric, calculation USGS I-2603-78 USGS OF 78-679, p 775
00673 G0035 Organic phosphorus, water, filtered, colorimetric, calculation USGS I-2603-78 USGS TWRI 5-A1/1979, p 467
00677 CL055 Phosphorus, hydrolyzable, dissolved, colorimetric, phosphomolybdate, automated USGS I-2602-78 USGS TWRI 5-A1/1979, p 459
00677 CL056 Orthophosphate and hydrolyzable phosphorus in filtered water by automated segmented flow (ASF) phosphomolybdate formation and colorimetry USGS I-2602-85 USGS TWRI 5-A1/1989, p 377
00678 CL088 Phosphorus, hydrolyzable, total, colorimetric, phosphomolybdate, automated USGS I-4602-78 USGS TWRI 5-A1/1979, p 463
00678 CL089 Orthophosphate and hydrolyzable phosphorus in unfiltered water by automated segmented flow (ASF) phosphomolybdate formation and colorimetry USGS I-4602-85 USGS TWRI 5-A1/1989, p 377
00680 00122 Organic carbon in unfiltered water by combustion or oxidation to CO2 and detection by IR spectrometry or reduction to CH4 and GC-FID USEPA 415.1
00680 00124 CARBON ORGANIC TOTAL (EPA) USEPA 415.1
00680 CMB05 Organic carbon in unfiltered water by combustion (DODEC program) STDMETH 5310 B Standard Methods
00680 CMB10 Total organic carbon (TOC) in unfiltered water by high-temperature combustion and carbon dioxide detecion (Standard Methods 5310 B; Colorado WSC) STDMETH 5310B Standard Methods
00680 COMB4 Organic carbon (OC) by combustion-infrared method STDMETH 5310B Standard Methods
00680 COMB9 Total organic carbon in unfiltered water by high temperature combustion
00680 OX001 Organic carbon in unfiltered water by persulfate-ultraviolet oxidation and carbon dioxide detection by IR, FID, or titration STDMETH 5310C Standard Methods
00680 OX009 Carbon, organic, total, wet oxidation USGS O-3100-83 USGS TWRI 5-A3/1987, p 15
00680 OX013 Total organic carbon in unfiltered water by carbonaceous analyzer USEPA 9060 EPA SW-846
00680 OX014 Total organic carbon, water, unfiltered, persulfate-ultraviolet oxidation method (CO WSC) STDMETH 5310C Standard Methods
00680 OX016 Total Organic Carbon by carbonaceous analyzer (EPA Method 9060) USEPA 9060 EPA SW-846
00680 OX025 Organic carbon, water, unfiltered, persulfate-ultraviolet or heated-persulfate oxidation (Standard Methods 5310 C; Colorado WSC) STDMETH 5310 C
00680 OX030 Organic carbon in unfiltered water by persulfate-UV or heated-persulfate oxidation (SM 5310 C; PA WSC; PA-DEP) STDMETH 5310 C Standard Methods
00680 OX035 Organic carbon, water, unfiltered, ultraviolet persulfate oxidation and measure with infrared detector (USGS-NYL)
00681 00011 Carbon, organic filtered .7GF
00681 00014 Custom Method for New York, DOC by Arocap Filtration
00681 00017 Custom Organic Method for New Jersey, DOC with high cloride levels
00681 00121 Organic carbon in filtered water by combustion or oxidation to CO2 and detection by IR spectrometry or reduction to CH4 and GC-FID USEPA 415.1
00681 00123 CARBON ORGANIC DISSOLVED (EPA) USEPA 415.1
00681 CMB06 Organic carbon in filtered water by combustion (DODEC program) STDMETH 5310 B Standard Methods
00681 CMB14 Organic carbon in filtered water (DOC) by high temperature combustion and nondispersive infrared (NDIR) detection (Standard Methods 5310 B; USGSVAWC; VA-CLS) STDMETH 5310 B
00681 CMB15 Organic carbon (DOC), water, filtered, 0.45 um capsule filter, acid-preserved, high temperature combustion oxidation and non-dispersive infrared spectroscopy
00681 CMB16 Organic carbon (DOC), water, filtered, 0.7 um GF/F, acid-preserved, high temperature combustion oxidation and non-dispersive infrared spectroscopy
00681 COMB4 Organic carbon (OC) by combustion-infrared method STDMETH 5310B Standard Methods
00681 OX002 DOC in filtered water by persulfate wet oxidation and infrared spectrometry STDMETH 5310D Standard Methods
00681 OX006 DOC in Water Filtered Through a 0.45 um Capsule Filter, Acid-Preserved, and Analysed by Persulfate Oxidation and Infrared Spectrometry USGS O-1122-92 USGS OF 92-480
00681 OX007 DOC in Water Filtered Through a 0.45 um Silver Filter and Analysed by Persulfate Oxidation and Infrared Spectrometry USGS O-1122-92 USGS OF 92-480
00681 OX008 DOC in Water Filtered Through a 0.7 um GF/F Filter, Acid-Preserved, and Analysed by Persulfate Oxidation and Infrared Spectrometry USGS O-1122-92 USGS OF 92-480
00681 OX012 Total organic carbon in filtered water by carbonaceous analyzer USEPA 9060 EPA SW-846
00681 OX015 DOC in water filtered through a polypropylene capsule filter, acid-preserved, and analysed by persulfate oxidation and infrared spectrometry USGS O-1122-92 USGS OF 92-480
00681 OX017 DOC in water filtered through a small-volume (~20 square cm surface area, 0.45 um pore diameter), disposable disk/capsule filter (e.g. "Aquaprep" or "Polydisc"); acid-preserved; and analyzed by persulfate oxidation and infrared spectrometry. USGS National Field Manual, Chapter A5
00681 OX023 Dissolved organic carbon, ultraviolet persulfate oxidation and measure with infrared detector (USGS-NYL) USGS OF 95-416
00681 OX024 Determination of dissolved organic carbon by UV-promoted persulfate oxidation and infrared spectrometry (Colorado WSC) USGS O-1122-92 USGS OF 92-480
00681 OX026 Organic carbon, water, filtered (GFF), persulfate-ultraviolet or heated-persulfate oxidation (Standard Methods 5310 C; Colorado WSC) STDMETH 5310 C
00681 OX031 Organic carbon in filtered water by persulfate-UV or heated-persulfate oxidation (SM 5310 C; PA WSC; PA-DEP) STDMETH 5310 C Standard Methods
00681 OX033 Dissolved organic carbon, ultraviolet persulfate oxidation and measure with infrared detector (NY WSC; ALSC)
00681 OX034 Dissolved organic carbon, ultraviolet persulfate oxidation and measure with infrared detector (NY WSC; KECK)
00685 COMB8 OI/Dohrmann, inorganic carbon, FIL USGS O-0004-78
00685 OX021 Total inorganic carbon in unfiltered water by carbonaceous analyzer USEPA 9060 EPA SW-846
00686 COUL1 Coulometric, Inorganic Carbon BTM USGS NWQL TM 98.08
00686 IF001 Carbon, inorganic plus organic, total in bottom material, dry weight, induction furnace USGS O-5101-83 USGS TWRI 5-A3/1987, p 17
00686 IF002 Carbon, inorganic plus organic, total in bottom material, dry weight, induction furnace USGS O-5101-83 USGS TWRI 5-A3/1987, p 17
00686 S0103
00687 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00687 G0036 Organic carbon, bed sediment, calculated
00687 OX019 Total organic carbon, bed sediment, carbonaceous analyzer USEPA 9060 EPA SW-846
00687 S0104
00688 00127 Carbon, inorganic, suspended (Total Particulate Inorganic Carbon (PIC)) USEPA 440.0
00688 CMB11 Inorganic carbon (PIC), suspended sediment, retained on a GF/F filter, analyzed by high-temperature combustion (Standard Methods 5310 B; NWQL) STDMETH 5310B
00688 CMB13 Carbon and nitrogen in sediment and particulates by combustion (EPA 440.0; USGSVAWC; VA-CLS) USEPA 440.0
00688 COMB5 Inorganic carbon retained on a GF/F filter (PIC) and analysed by high-temperature combustion (EPA 440.0; NWQL) USEPA 440.0
00689 00016 Custom Method for New York, SOC by Glass Fiber Filtration
00689 00018 Custom Organic Method for New Jersey, SOC high volume by glass fiber filter
00689 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00689 CAL06 Particulate orgainc carbon (POC), calculated USEPA 440.0
00689 OX011 Suspended organic carbon (SOC) retained on a 0.45 um silver filter and analysed by wet oxidation USGS O-7100-83 USGS TWRI 5-A3/1987, p 16
00690 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00691 COMB8 OI/Dohrmann, inorganic carbon, FIL USGS O-0004-78
00691 OX020 Custom DIC analysis, acidify (wet oxidation)/nitrogen purge/infrared detector (NASQAN - Crawford)
00691 OX022 Dissolved inorganic carbon in filtered water by carbonaceous analyzer USEPA 9060 EPA SW-846
00693 IF002 Carbon, inorganic plus organic, total in bottom material, dry weight, induction furnace USGS O-5101-83 USGS TWRI 5-A3/1987, p 17
00693 IF003 Carbon, inorganic plus organic, total in bottom material, dry weight, induction furnace (NAWQA) USGS O-5101-83 USGS TWRI 5-A3/1987, p 17
00693 S0105
00694 CMB13 Carbon and nitrogen in sediment and particulates by combustion (EPA 440.0; USGSVAWC; VA-CLS) USEPA 440.0
00694 COMB6 Organic and inorganic carbon retained on a GF/F filter (TPC) and analysed by high-temperature combustion USEPA 440.0
00717 DIST1 Weak acid dissociable cyanide in filtered water by distillation and titrimetric, colorimetric, or potentiometric quantification STDMETH 4500-CN I Standard Methods
00718 00148 Weak acid dissociable cyanide in unfiltered water by distillation of cyanide at pH 4.5 to 6.0 and analysis of cyanide by titrimetric, colorimetric, or potentiometric procedures STDMETH 4500-CN I Standard Methods
00720 CL069 Cyanide recoverable from unfiltered water by automated segmented flow (ASF) reaction with barbituric acid and colorimetry USGS I-4302-85 USGS TWRI 5-A1/1989, p 205
00720 CL096 Cyanide in unfiltered water by automated UV colorimetry USEPA 335.3 EPA/600/4-79/020
00720 CL098 Cyanide in unfiltered water by UV colorimetry USEPA 9012A EPA SW-846
00720 CL108 Cyanide in unfiltered water by semi-automated colorimetry USEPA 335.4 USEPA Method 335.4
00720 CL177 Total cyanide in unfiltered water by colorimetry after distillation (Standard Methods 4500-CN-E; DODESP) STDMETH 4500-CN-E
00720 CL178 Total and amenable cyanide in unfiltered water by off-line distillation and automated UV colorimetry (EPA 9012B; DODESP program) USEPA 9012B
00720 CL181 Total and amenable cyanide in unfiltered water by automated colorimetry with off-line distillation (EPA 9012B; DODESP program) USEPA 9012B
00720 KEL01 Cyanide, water, unfiltered, Kelada automated method (PA WSC; PA-DEP) EPA-821-B-01-009
00721 CL091 Colorimetry, automated segmented flow (ASF), Barbituric Acid, Cyanide, BTM USGS I-5300-83 USGS TWRI 5-A1/1989
00721 CL098 Cyanide in unfiltered water by UV colorimetry USEPA 9012A EPA SW-846
00721 CL165 Total and amenable cyanide in sediment by automated UV colorimetry with off-line distillation (EPA method 9012A; DODEC program) USEPA 9012A
00721 S0106 Cyanide, total in bottom material, colorimetric, pyridine-pyrazolone USGS I-5300-78 USGS TWRI 5-A1/1979, p 349
00722 CN002 Free cyanides amenable to chlorination after distillation STDMETH 4500 CN- G Standard Methods
00723 CL032 Colorimetry, automated segmented flow (ASF), Barbituric acid, Cyanide, FIL USGS I-2302-85 USGS TWRI 5-A1/1989
00723 CL097 Cyanide in filtered water by automated UV colorimetry USEPA 335.3 EPA/600/4-79/020
00723 CL099 Cyanide in filtered water by UV colorimetry USEPA 9012A EPA SW-846
00723 CL109 Cyanide in filtered water by semi-automated colorimetry USEPA 335.4 USEPA Method 335.4
00723 CL180 Total cyanide in filtered water by colorimetry after distillation (Standard Methods 4500-CN- E; DODESP) STDMETH 4500-CN- E
00730 00095 THIOCYANATE TOTAL STDMETH 4500-CN M Standard Methods
00745 CL113 Sulfide in unfiltered water by the methylene blue colorimetric method (EPA method 376.2; DODEC program) USEPA 376.2 EPA/600/4-79/020
00745 CL141 Sulfide in unfiltered water by the methylene blue colorimetric method (Standard Methods 4500-S D; DODEC program) STDMETH 4500-S D Standard Methods
00745 CL184 Sulfide in unfiltered water by gas dialysis and automated methylene blue colorimetry (Standard Methods 4500-S2- E; OR WSC) STDMETH 4500-S2- E
00745 TT043 ZnS ppt., Iodometric titration USGS I-3840-85 USGS TWRI 5-A1/1989, p 483
00745 TT053 Sulfide in unfiltered water by iodine titration (EPA method 376.1; DODEC program) USEPA 376.1 EPA/600/4-79/020
00745 TT074 Sulfide in unfiltered water by iodine titration (Standard Methods 4500-S F; DODEC program) STDMETH 4500-S F Standard Methods
00745 TT083 Sulfide in unfiltered water by distilation and titration (EPA method 9034; DODEC program) USEPA 9034
00746 CL112 Sulfide in filtered water by the methylene blue colorimetric method (EPA method 376.2; DODEC program) USEPA 376.2 EPA/600/4-79/020
00746 CL142 Sulfide in filtered water by the methylene blue colorimetric method (Standard Methods 4500-S D; DODEC program) STDMETH 4500-S D Standard Methods
00746 CL183 Sulfide in filtered water by gas dialysis and automated methylene blue colorimetry (Standard Methods 4500-S2- E; OR WSC) STDMETH 4500-S2- E
00746 S0093
00746 TT052 Sulfide in filtered water by iodine titration (EPA method 376.1; DODEC program) USEPA 376.1 EPA/600/4-79/020
00746 TT075 Sulfide in filtered water by iodine titration (Standard Methods 4500-S F; DODEC program) STDMETH 4500-S F Standard Methods
00900 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00900 CAL07 Hardness, calculation USGS I-1340-78 USGS TWRI 5-A1/1979, p 281
00900 CAL24 Hardness, water, calculated (SM 2340 B; PA WSC; PA-DEP) STDMETH 2340 B Standard Methods
00900 G0037
00900 TT092 Hardness of unfiltered water by EDTA titration (Standard Methods 2340 C; USGSVAWC; VA-CLS) STDMETH 2340 C
00901 TT072 Hardness of unfiltered water by titration with EDTA (Standard Methods 2340 C; DODEC program) STDMETH 2340 C Standard Methods
00902 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00902 G0038 Hardness, noncarbonate, calculation USGS I-1344-78 USGS OF 78-679, p 482
00902 G0038 Hardness, noncarbonate, calculation USGS I-1344-78 USGS TWRI 5-A1/1979, p 283
00903 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00903 TT024 NONCARBONATE HARD. L, fixed endpoint
00903 TT025 NONCARBONATE HARD. L, incremental titration
00904 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00904 TT026 Non-carb hardness, dissolved, field, fixed endpoint
00904 TT027 Non-carb hardness, dissolved, field, incremental titration
00905 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00905 TT028 Non-carb hardness, dissolved, lab, fixed endpoint
00905 TT029 Non-carb hardness, dissolved, lab, incremental titration
00906 CAL04 Hardness of filtered water by calculation STDMETH 2340B Standard Methods
00907 CAL05 Hardness of unfiltered water by calculation STDMETH 2340B Standard Methods
00907 CAL19 Hardness of unfiltered water by calculation (Standard Methods 2340 B; PA WSC) STDMETH 2340 B
00908 TT031 Hardness of filtered water by titration with EDTA (EPA method 130.2; DODEC program) USEPA 130.2
00908 TT073 Hardness of filtered water by titration with EDTA (Standard Methods 2340 C; DODEC program) STDMETH 2340 C Standard Methods
00909 TT032 Hardness of unfiltered water by titration with EDTA (EPA method 130.2; DODEC program) USEPA 130.2
00909 TT072 Hardness of unfiltered water by titration with EDTA (Standard Methods 2340 C; DODEC program) STDMETH 2340 C Standard Methods
00915 AA007 Calcium in low ionic strength filtered water by direct AAS USGS I-1152-85 USGS TWRI 5-A1/1989, p 137
00915 AA008 Calcium in filtered water by direct AAS (NWQL) USGS I-1152-85 USGS TWRI 5-A1/1989, p 137
00915 AA104 Basic cations, filtered water, direct atomic absorption spectrophotometry (NY WSC; ALSC)
00915 AA105 Basic cations, filtered water, direct atomic absorption spectrophotometry (NY WSC; KECK)
00915 G0039 NWQL method number I-1150-77. No published method has been found for this method number. USGS I-1150-77
00915 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) ASTM D6919-03
00915 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00915 PL051 Metals in Blank Water by ICP USGS OF 94-539
00915 PL125 Calcium, magnesium, silicon, and aluminum, filtered water, ICP/OES (USGS-NYL)
00915 PL127 Elements, filtered water, ICP/OES (USGS-NYL)
00915 PL130 Elements, water, filtered, inductively coupled plasma (EPA 200.7; Colorado WSC) USEPA 200.7
00915 PL133 Elements in filtered water by inductively coupled plasma-mass spectrometry (EPA 6020A; DODESP) USEPA 6020A
00915 PLA03 Metals and trace elements in water and wastes by inductively coupled plasma-atomic emission spectrometry without digestion USEPA 200.7 EPA-600/R-94/111
00915 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00915 PLA06 Ocala Lab analysis of dissolved trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
00915 PLA09 Low level metals in filtered water, by ICP-AES USGS I-1472-87 USGS OF 93-125, p 101
00915 PLA11 Metals, filtered water, Inductively coupled plasma-atomic emmission spectrometry (NWQL) USGS I-1472-87 USGS OF 93-125, p 101
00915 PLA18 Trace elements in filtered water by ICP-AES (DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00915 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-87 USGS OF 93-125, p 101
00915 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-95 USGS OF 96-149
00915 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-85 USGS TWRI 5-A1/1989, p 517
00915 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00915 PLA29 Metals in filtered water by inductively coupled plasma-atomic emmission spectrometry (Colorado WSC) USGS I-1472-87 USGS OF 93-125, p 101
00915 PLA39 Trace elements in filtered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; PA-DEP) USEPA 200.7 EPA 821-R-01-010
00915 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
00915 PLM29 Ocala Lab analysis of trace elements in blank water by ICP-MS USEPA 200.8
00915 PLM39 Elements in filtered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
00915 PLM42 Trace elements in filtered water and wastes by inductively coupled plasma - mass spectrometry USEPA 200.8 EPA-600/R-94/111
00915 PLM58 Elements in filtered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00915 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00915 PLM69 Elements in filtered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
00915 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00915 PLM79 Trace elements, water, filtered, syringe filtration and inductively coupled plasma mass spectrometry (ICPMS) (MN WSC) ES&T, 2003, v 37, no 17, p 3953-3957
00915 PLO05 Trace and major elements, dissolved iron and silica in aqueous media by inductively coupled plasma-optical emmission spectroscopy (USGSTMCO)
00916 AA046 Calcium recoverable from unfiltered water by dilute HCl (USGS) digestion and direct AAS USGS I-3152-85 USGS TWRI 5-A1/1989, p 137
00916 AA047 Calcium recoverable from unfiltered water by nitric and hydrochloric acid (EPA) digestion, and direct AAS USGS I-3153-85 USGS TWRI 5-A1/1989, p 141
00916 AA101 Basic cations, unfiltered water, direct atomic absorption spectrophotometry (USGS-NYL) USGS OF 95-416
00916 PL086 Ocala Lab analysis of total trace elements by ICP USEPA 200.7
00916 PL124 Calcium, magnesium, silicon, and aluminum, unfiltered water, ICP/OES (USGS-NYL)
00916 PL126 Elements, unfiltered water, ICP/OES (USGS-NYL)
00916 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00916 PLA07 Ocala Lab analysis of total trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
00916 PLA15 Metals, unfiltered water, Inductively coupled plasma-atomic emission spectrometry USGS I-4471-97 USGS OF 98-165
00916 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00916 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00916 PLA33 Elements in unfiltered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; lab#1) USEPA 200.7
00916 PLA40 Trace elements in unfiltered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; PA-DEP) USEPA 200.7 EPA 821-R-01-010
00916 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
00916 PLM11 Elements in unfiltered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-4020-05 USGS TMR 5-B1
00916 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
00916 PLM41 Elements in unfiltered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
00916 PLM57 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00916 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00916 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00916 PLO07 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-optical emission spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
00917 AA076 AA, Calcium, BTM USGS I-5152-86 USGS TWRI 5-A1/1989
00917 PLA27 Add-ons to elements recoverable from bed sediment by microwave assisted digestion (EPA 3051A) and inductively coupled plasma-atomic emission spectrometry USEPA 3051A
00917 PLA36 Trace elements in bed sediments by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
00917 PLM01 NAWQA Geologic Division Bed Sediment ICPMS 4 Acid Digestion - VanMetre Protocol (NWQL Schedule 3197) USGS OF 02-223
00918 PLM70 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
00921 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00923 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00924 AA083 Magnesium recoverable from bottom material by hydrogen peroxide and dilute HCl (USGS) digestion, and direct AAS USGS I-5447-85 USGS TWRI 5-A1/1989, p 263
00924 PLA27 Add-ons to elements recoverable from bed sediment by microwave assisted digestion (EPA 3051A) and inductively coupled plasma-atomic emission spectrometry USEPA 3051A
00924 PLA36 Trace elements in bed sediments by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
00924 PLM01 NAWQA Geologic Division Bed Sediment ICPMS 4 Acid Digestion - VanMetre Protocol (NWQL Schedule 3197) USGS OF 02-223
00924 PLM71 Elements in bed sediment by inductively coupled plasma-mass spectrometry (EPA 6020A; DODESP) USEPA 6020A EPA SW-846
00925 AA022 Magnesium in filtered water by direct AAS (NWQL) USGS I-1447-85 USGS TWRI 5-A1/1989, p 263
00925 AA023 Magnesium, low level, in filtered water by direct AAS USGS I-1447-85 USGS TWRI 5-A1/1989, p 263
00925 AA104 Basic cations, filtered water, direct atomic absorption spectrophotometry (NY WSC; ALSC)
00925 AA105 Basic cations, filtered water, direct atomic absorption spectrophotometry (NY WSC; KECK)
00925 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) ASTM D6919-03
00925 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00925 PL051 Metals in Blank Water by ICP USGS OF 94-539
00925 PL125 Calcium, magnesium, silicon, and aluminum, filtered water, ICP/OES (USGS-NYL)
00925 PL127 Elements, filtered water, ICP/OES (USGS-NYL)
00925 PL130 Elements, water, filtered, inductively coupled plasma (EPA 200.7; Colorado WSC) USEPA 200.7
00925 PL133 Elements in filtered water by inductively coupled plasma-mass spectrometry (EPA 6020A; DODESP) USEPA 6020A
00925 PLA03 Metals and trace elements in water and wastes by inductively coupled plasma-atomic emission spectrometry without digestion USEPA 200.7 EPA-600/R-94/111
00925 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00925 PLA06 Ocala Lab analysis of dissolved trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
00925 PLA09 Low level metals in filtered water, by ICP-AES USGS I-1472-87 USGS OF 93-125, p 101
00925 PLA11 Metals, filtered water, Inductively coupled plasma-atomic emmission spectrometry (NWQL) USGS I-1472-87 USGS OF 93-125, p 101
00925 PLA18 Trace elements in filtered water by ICP-AES (DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00925 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-87 USGS OF 93-125, p 101
00925 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-95 USGS OF 96-149
00925 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-85 USGS TWRI 5-A1/1989, p 517
00925 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00925 PLA29 Metals in filtered water by inductively coupled plasma-atomic emmission spectrometry (Colorado WSC) USGS I-1472-87 USGS OF 93-125, p 101
00925 PLA34 Trace elements in filtered water by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
00925 PLA39 Trace elements in filtered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; PA-DEP) USEPA 200.7 EPA 821-R-01-010
00925 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
00925 PLM29 Ocala Lab analysis of trace elements in blank water by ICP-MS USEPA 200.8
00925 PLM39 Elements in filtered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
00925 PLM42 Trace elements in filtered water and wastes by inductively coupled plasma - mass spectrometry USEPA 200.8 EPA-600/R-94/111
00925 PLM58 Elements in filtered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00925 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00925 PLM69 Elements in filtered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
00925 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00925 PLO05 Trace and major elements, dissolved iron and silica in aqueous media by inductively coupled plasma-optical emmission spectroscopy (USGSTMCO)
00926 G0040 Magnesium, suspended recoverable constituents, calculation, total recoverable minus dissolved USGS I-7000-79 USGS OF 82-272, p 69
00927 AA058 Magnesium recoverable from unfiltered water by dilute HCl (USGS) digestion and direct AAS USGS I-3447-85 USGS TWRI 5-A1/1989, p 263
00927 AA059 Magnesium recoverable from unfiltered water by nitric and hydrochloric acid (EPA) digestion, and direct AAS USGS I-3448-85 USGS TWRI 5-A1/1989, p 267
00927 AA101 Basic cations, unfiltered water, direct atomic absorption spectrophotometry (USGS-NYL) USGS OF 95-416
00927 PL086 Ocala Lab analysis of total trace elements by ICP USEPA 200.7
00927 PL124 Calcium, magnesium, silicon, and aluminum, unfiltered water, ICP/OES (USGS-NYL)
00927 PL126 Elements, unfiltered water, ICP/OES (USGS-NYL)
00927 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00927 PLA07 Ocala Lab analysis of total trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
00927 PLA15 Metals, unfiltered water, Inductively coupled plasma-atomic emission spectrometry USGS I-4471-97 USGS OF 98-165
00927 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00927 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00927 PLA33 Elements in unfiltered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; lab#1) USEPA 200.7
00927 PLA40 Trace elements in unfiltered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; PA-DEP) USEPA 200.7 EPA 821-R-01-010
00927 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
00927 PLM11 Elements in unfiltered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-4020-05 USGS TMR 5-B1
00927 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
00927 PLM41 Elements in unfiltered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
00927 PLM57 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00927 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00927 PLM70 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
00927 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00927 PLO07 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-optical emission spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
00929 AA068 Sodium recoverable from unfiltered water by dilute HCl (USGS) digestion and direct AAS USGS I-3735-85 USGS TWRI 5-A1/1989, p 425
00929 AA069 Sodium recoverable from unfiltered water by nitric and hydrochloric acid (EPA) digestion, and direct AAS USGS I-3736-85 USGS TWRI 5-A1/1989, p 427
00929 AA101 Basic cations, unfiltered water, direct atomic absorption spectrophotometry (USGS-NYL) USGS OF 95-416
00929 AA103 Sodium and potassium in unfiltered water by direct air-acetylene flame atomic absorption spectrometry (Standard Methods 3111 B; PA WSC) STDMETH 3111 B
00929 PL086 Ocala Lab analysis of total trace elements by ICP USEPA 200.7
00929 PL126 Elements, unfiltered water, ICP/OES (USGS-NYL)
00929 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00929 PLA15 Metals, unfiltered water, Inductively coupled plasma-atomic emission spectrometry USGS I-4471-97 USGS OF 98-165
00929 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00929 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00929 PLA38 Elements in unfiltered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; lab#2) USEPA 200.7
00929 PLA40 Trace elements in unfiltered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; PA-DEP) USEPA 200.7 EPA 821-R-01-010
00929 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
00929 PLM11 Elements in unfiltered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-4020-05 USGS TMR 5-B1
00929 PLM57 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00929 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00929 PLM70 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
00929 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00929 PLO07 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-optical emission spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
00930 AA035 Sodium in filtered water by direct AAS (NWQL) USGS I-1735-85 USGS TWRI 5-A1/1989, p 425
00930 AA036 Sodium, low level, in filtered water by direct AAS USGS I-1735-85 USGS TWRI 5-A1/1989, p 425
00930 AA102 Sodium and potassium, filtered water, direct atomic absorption spectrophotometry (USGS-NYL)
00930 AA104 Basic cations, filtered water, direct atomic absorption spectrophotometry (NY WSC; ALSC)
00930 AA105 Basic cations, filtered water, direct atomic absorption spectrophotometry (NY WSC; KECK)
00930 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) ASTM D6919-03
00930 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00930 PL051 Metals in Blank Water by ICP USGS OF 94-539
00930 PL088 Ocala Lab low level analysis of dissolved trace elements by ICP USEPA 200.7
00930 PL127 Elements, filtered water, ICP/OES (USGS-NYL)
00930 PL130 Elements, water, filtered, inductively coupled plasma (EPA 200.7; Colorado WSC) USEPA 200.7
00930 PL133 Elements in filtered water by inductively coupled plasma-mass spectrometry (EPA 6020A; DODESP) USEPA 6020A
00930 PLA03 Metals and trace elements in water and wastes by inductively coupled plasma-atomic emission spectrometry without digestion USEPA 200.7 EPA-600/R-94/111
00930 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00930 PLA06 Ocala Lab analysis of dissolved trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
00930 PLA09 Low level metals in filtered water, by ICP-AES USGS I-1472-87 USGS OF 93-125, p 101
00930 PLA11 Metals, filtered water, Inductively coupled plasma-atomic emmission spectrometry (NWQL) USGS I-1472-87 USGS OF 93-125, p 101
00930 PLA12 Metals in filtered water, by ICP-AES (Ocala) USGS I-1472-87 USGS OF 93-125, p 101
00930 PLA18 Trace elements in filtered water by ICP-AES (DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00930 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-87 USGS OF 93-125, p 101
00930 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-95 USGS OF 96-149
00930 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-85 USGS TWRI 5-A1/1989, p 517
00930 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00930 PLA29 Metals in filtered water by inductively coupled plasma-atomic emmission spectrometry (Colorado WSC) USGS I-1472-87 USGS OF 93-125, p 101
00930 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
00930 PLM29 Ocala Lab analysis of trace elements in blank water by ICP-MS USEPA 200.8
00930 PLM58 Elements in filtered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00930 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00930 PLM69 Elements in filtered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
00930 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00930 PLO05 Trace and major elements, dissolved iron and silica in aqueous media by inductively coupled plasma-optical emmission spectroscopy (USGSTMCO)
00931 00142 USGS I-1738-85
00931 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00932 ALGOR Computation by NWIS algorithm NWIS User's Manual, QW System, Section 3.6.7
00932 CAL01 Percent sodium calculation, percent of equivalents of sodium+potassium+caclium+magnesium USGS TWRI 5-A1/1979, p 287
00934 AA089 Sodium recoverable from bottom material by hydrogen peroxide and dilute HCl (USGS) digestion, and direct AAS USGS I-5735-85 USGS TWRI 5-A1/1989, p 425
00934 PLA19 Trace elements in solids by inductively coupled plasma-atomic emission spectrometry USEPA 6010B EPA SW-846, Method 6010B
00934 PLA27 Add-ons to elements recoverable from bed sediment by microwave assisted digestion (EPA 3051A) and inductively coupled plasma-atomic emission spectrometry USEPA 3051A
00934 PLA36 Trace elements in bed sediments by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
00934 PLM01 NAWQA Geologic Division Bed Sediment ICPMS 4 Acid Digestion - VanMetre Protocol (NWQL Schedule 3197) USGS OF 02-223
00935 AA030 Potassium in filtered water by direct AAS (NWQL) USGS I-1630-85 USGS TWRI 5-A1/1989, p 393
00935 AA031 Potassium, low level, in filtered water by direct AAS USGS I-1630-85 USGS TWRI 5-A1/1989, p 393
00935 AA099 Potassium, water, filtered, atomic absorption, direct (NRP and CO WSC) USGS I-1630-85 USGS TWRI 5-A1/1989, p 393
00935 AA102 Sodium and potassium, filtered water, direct atomic absorption spectrophotometry (USGS-NYL)
00935 AA104 Basic cations, filtered water, direct atomic absorption spectrophotometry (NY WSC; ALSC)
00935 AA105 Basic cations, filtered water, direct atomic absorption spectrophotometry (NY WSC; KECK)
00935 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) ASTM D6919-03
00935 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00935 PL127 Elements, filtered water, ICP/OES (USGS-NYL)
00935 PL129 Metals in filtered water by inductively coupled plasma (ICP) spectroscopy (Standard Methods 3120 B; Colorado WSC) STDMETH 3120B Standard Methods
00935 PL130 Elements, water, filtered, inductively coupled plasma (EPA 200.7; Colorado WSC) USEPA 200.7
00935 PL133 Elements in filtered water by inductively coupled plasma-mass spectrometry (EPA 6020A; DODESP) USEPA 6020A
00935 PLA03 Metals and trace elements in water and wastes by inductively coupled plasma-atomic emission spectrometry without digestion USEPA 200.7 EPA-600/R-94/111
00935 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00935 PLA18 Trace elements in filtered water by ICP-AES (DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00935 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00935 PLA34 Trace elements in filtered water by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
00935 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
00935 PLM29 Ocala Lab analysis of trace elements in blank water by ICP-MS USEPA 200.8
00935 PLM58 Elements in filtered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00935 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00935 PLM69 Elements in filtered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
00935 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00935 PLO02 Potassium at low concentrations in filtered water by ICP-OES STDMETH 3120 ICP Standard Methods
00935 PLO03 Potassium in filtered water by ICP-OES STDMETH 3120 ICP Standard Methods
00935 PLO05 Trace and major elements, dissolved iron and silica in aqueous media by inductively coupled plasma-optical emmission spectroscopy (USGSTMCO)
00937 AA065 Potassium recoverable from unfiltered water by dilute HCl (USGS) digestion and direct AAS USGS I-3630-85 USGS TWRI 5-A1/1989, p 393
00937 AA066 Potassium recoverable from unfiltered water by nitric and hydrochloric acid (EPA) digestion, and direct AAS USGS I-3631-85 USGS TWRI 5-A1/1989, p 395
00937 AA101 Basic cations, unfiltered water, direct atomic absorption spectrophotometry (USGS-NYL) USGS OF 95-416
00937 AA103 Sodium and potassium in unfiltered water by direct air-acetylene flame atomic absorption spectrometry (Standard Methods 3111 B; PA WSC) STDMETH 3111 B
00937 PL126 Elements, unfiltered water, ICP/OES (USGS-NYL)
00937 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00937 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00937 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00937 PLA38 Elements in unfiltered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; lab#2) USEPA 200.7
00937 PLA40 Trace elements in unfiltered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; PA-DEP) USEPA 200.7 EPA 821-R-01-010
00937 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
00937 PLM11 Elements in unfiltered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-4020-05 USGS TMR 5-B1
00937 PLM57 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00937 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00937 PLM70 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
00937 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00937 PLO01 Potassium recoverable from unfiltered water by ICP-OES
00937 PLO07 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-optical emission spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
00938 AA088 Potassium recoverable from bottom material by hydrogen peroxide and dilute HCl (USGS) digestion, and direct AAS USGS I-5630-85 USGS TWRI 5-A1/1989, p 393
00938 PLA27 Add-ons to elements recoverable from bed sediment by microwave assisted digestion (EPA 3051A) and inductively coupled plasma-atomic emission spectrometry USEPA 3051A
00938 PLA36 Trace elements in bed sediments by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
00938 PLM01 NAWQA Geologic Division Bed Sediment ICPMS 4 Acid Digestion - VanMetre Protocol (NWQL Schedule 3197) USGS OF 02-223
00940 00010 CHLORIDE, FIL LOWLVL
00940 00111 Colorimetric, Ferricyanide USEPA 325.2 EPA/600/4-79/020
00940 ADF01 Chloride in low ionic strength filtered water by automated discrete formation of ferric thiocyanate and colorimetry USGS I-2188-85 USGS TWRI 5-A1/1989, p 155
00940 ADF02 Chloride in filtered water by automated discrete formation of ferric thiocyanate and colorimetry USGS I-2188-85 USGS TWRI 5-A1/1989, p 155
00940 CL028 Chloride in filtered water by formation of ferric thiocyanate and colorimetry USGS I-1187-85 USGS TWRI 5-A1/1989, p 149
00940 CL031 Chloride in filtered water by automated segmented flow (ASF) formation of ferric thiocyanate and colorimetry USGS I-2187-85 USGS TWRI 5-A1/1989, p 151
00940 CL155 Chloride in filtered water by automated ferricyanide colorimetry STDMETH 4500 Cl- E Standard Methods
00940 FCN01 Chloride, water, filtered, flow-injected auto analyzer (FIA) using ferricyanide colorimetry (Standard Methods 4500 CL G; WI WSC) STDMETH 4500 CL G
00940 IC007 CHLORIDE DISSOLVED (IC)
00940 IC009 Determination of inorganic anions by ion chromatography (EPA Method 300.0) USEPA 300.0 EPA/600/R-93/100
00940 IC010 Anions, low level, filtered water, by ion chromatography (EPA Method 300.0) USEPA 300.0 EPA/600/R-93/100
00940 IC019 Anions in filtered water by automated ion chromatography (NWQL) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00940 IC022 Anions, filtered water, ion chromatography USGS I-2057-90 USGS OF 93-125, p 19
00940 IC024 Anions, low ionic strength (<100uS/cm), filtered water, ion chromatography USGS I-2058-85 USGS TWRI 5-A1/1989, p 527
00940 IC025 Inorganic anions, water, filtered, ion chromatography (DODEC) USEPA 300.0 EPA/600/R-93/100
00940 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) ASTM D6919-03
00940 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00940 IC034 Anions, filtered water, ion chromatography with ion suppression (USGS-NYL) USGS OF 95-416
00940 IC036 Anions in filtered water by automated ion chromatography (I-2057-85; Colorado WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00940 IC037 Anions, water, filtered, ion chromatography (EPA 300.1; Colorado WSC) USEPA 300.1
00940 IC039 Anions in filtered water by ion chromatography (Idaho WSC, MS-USM)
00940 IC043 Major anions in filtered water by ion chromatography (USGSTMCO) USGS OF 95-426A
00940 IC060 Inorganic anions in filtered water by ion chromatography (EPA 300.0; PA WSC; PA-DEP) USEPA 300.0
00940 IC062 Anions, filtered water, ion chromatography (USGSNYWC; ALSC)
00940 IC063 Anions, filtered water, ion chromatography (USGSNYWC; KECK)
00940 IC065 Chloride, low level, filtered water by ion chromatography (EPA Method 300.0; CO WSC; US Forest Service) USEPA 300.0
00940 IC066 Inorganic anions, water, filtered, by ion chromatography (USEPA 300.0; USGSTMCO) USEPA 300.0
00940 ISE08 Chloride in water, measured in the field, by ion specific electrode
00940 TT036 Chloride in filtered water by silver nitrate titration USGS I-1183-85 USGS TWRI 5-A1/1989, p 159
00940 TT037 Chloride in filtered water by mercuric nitrate titration USGS I-1184-85 USGS TWRI 5-A1/1989, p 157
00940 TT088 Chloride, water, titration with silver nitrate (Standard Methods 4500-Cl- B; FL WSC) STDMETH 4500-Cl- B
00945 00073 Turbidimetric analysis
00945 00074 Turbidimetric analysis, background corrected
00945 BASO4 Barium Sulfate Turbidity USEPA 375.4 EPA/600/4-79/020
00945 CL065 Sulfate in filtered water by automated segmented flow (ASF), methylthymol blue method, colorimetric USGS I-2822-85 USGS TWRI 5-A1/1989, p 473
00945 IC009 Determination of inorganic anions by ion chromatography (EPA Method 300.0) USEPA 300.0 EPA/600/R-93/100
00945 IC010 Anions, low level, filtered water, by ion chromatography (EPA Method 300.0) USEPA 300.0 EPA/600/R-93/100
00945 IC019 Anions in filtered water by automated ion chromatography (NWQL) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00945 IC022 Anions, filtered water, ion chromatography USGS I-2057-90 USGS OF 93-125, p 19
00945 IC024 Anions, low ionic strength (<100uS/cm), filtered water, ion chromatography USGS I-2058-85 USGS TWRI 5-A1/1989, p 527
00945 IC025 Inorganic anions, water, filtered, ion chromatography (DODEC) USEPA 300.0 EPA/600/R-93/100
00945 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) ASTM D6919-03
00945 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00945 IC034 Anions, filtered water, ion chromatography with ion suppression (USGS-NYL) USGS OF 95-416
00945 IC036 Anions in filtered water by automated ion chromatography (I-2057-85; Colorado WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00945 IC037 Anions, water, filtered, ion chromatography (EPA 300.1; Colorado WSC) USEPA 300.1
00945 IC039 Anions in filtered water by ion chromatography (Idaho WSC, MS-USM)
00945 IC043 Major anions in filtered water by ion chromatography (USGSTMCO) USGS OF 95-426A
00945 IC060 Inorganic anions in filtered water by ion chromatography (EPA 300.0; PA WSC; PA-DEP) USEPA 300.0
00945 IC062 Anions, filtered water, ion chromatography (USGSNYWC; ALSC)
00945 IC063 Anions, filtered water, ion chromatography (USGSNYWC; KECK)
00945 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00945 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00945 THORN SULFATE DISSOLVED (THORIN) USGS I-1820-78 USGS TWRI 5-A1/1979, p 615
00946 IC018 SULFATE DISSOLVED (IC) USGS I-2057-84
00946 IC026 Inorganic anions, water, unfiltered, ion chromatography (DODEC, EPA 300.0) USEPA 300.0 EPA/600/R-93/100
00946 IC028 Anions in unfiltered water by ion chromatography (DODEC, EPA 9056) USEPA 9056 EPA SW-846
00946 IC059 Inorganic anions in unfiltered water by ion chromatography (EPA 300.0; PA WSC; PA-DEP) USEPA 300.0
00946 IC066 Inorganic anions, water, filtered, by ion chromatography (USEPA 300.0; USGSTMCO) USEPA 300.0
00946 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00946 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00950 00109 Determination of inorganic anions in drinking water by ion chromatography USEPA 300.1A EPA 815-R-00-014
00950 IC003 Ion chrom Fluoride
00950 IC009 Determination of inorganic anions by ion chromatography (EPA Method 300.0) USEPA 300.0 EPA/600/R-93/100
00950 IC021 Anions in filtered water by automated ion chromatography with eluant makeup for water dip fluoride interference USGS I-2057-90 USGS OF 93-125, p 19
00950 IC024 Anions, low ionic strength (<100uS/cm), filtered water, ion chromatography USGS I-2058-85 USGS TWRI 5-A1/1989, p 527
00950 IC025 Inorganic anions, water, filtered, ion chromatography (DODEC) USEPA 300.0 EPA/600/R-93/100
00950 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) ASTM D6919-03
00950 IC032 Ions, water, filtered, automated ion-exchange chromatography (NRP and CO WSC) USGS I-2057-85 USGS TWRI 5-A1/1989, p 523
00950 IC043 Major anions in filtered water by ion chromatography (USGSTMCO) USGS OF 95-426A
00950 IC066 Inorganic anions, water, filtered, by ion chromatography (USEPA 300.0; USGSTMCO) USEPA 300.0
00950 ISE03 FLUORIDE DISSOLVED (ISE-EPA) USEPA 340.2
00950 ISE04 Fluoride in filtered water by ISE USGS I-1327-85 USGS TWRI 5-A1/1989, p 219
00950 ISE05 Anions, filtered water, ion-selective electrode USGS I-2327-85 USGS TWRI 5-A1/1989, p 221
00951 00096 FLUORIDE TOTAL STDMETH 4500F Standard Methods
00951 IC026 Inorganic anions, water, unfiltered, ion chromatography (DODEC, EPA 300.0) USEPA 300.0 EPA/600/R-93/100
00951 IC028 Anions in unfiltered water by ion chromatography (DODEC, EPA 9056) USEPA 9056 EPA SW-846
00951 IC059 Inorganic anions in unfiltered water by ion chromatography (EPA 300.0; PA WSC; PA-DEP) USEPA 300.0
00951 IC064 Fluoride, water, unfiltered, ion chromatography (EPA 300.0; USGS-NYL) USEPA 300.0
00951 ISE06 Fluoride in unfiltered water by ASF ISE USGS I-4327-85 USGS TWRI 5-A1/1989, p 221
00951 ISE07 Fluoride, unfiltered water, automated ion-selective electrode (USGS-NYL) USGS OF 95-416
00951 ISE11 Fluoride, unfiltered water, ion-selective electrode (NY WSC; ALSC)
00951 ISE12 Fluoride, unfiltered water, ion-selective electrode (NY WSC; KECK)
00951 S0107 Fluoride, total, electrometric, ion-selective electrode, automated USGS I-4327-78
00951 S0107 Fluoride, total, electrometric, ion-selective electrode, automated USGS I-4327-78 USGS TWRI 5-A1/1979, p 529
00954 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00954 PLM57 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00954 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00955 00049 Nutrients in filtered water by enzymatic reductase colorimetry by discrete analyzer
00955 AA033 Silica in filtered water by direct AAS USGS I-1702-85 USGS TWRI 5-A1/1989, p 411
00955 CL064 Silica in filtered water by automated segmented flow (ASF) molybdate blue formation and colorimetry USGS I-2700-85 USGS TWRI 5-A1/1989, p 417
00955 CL151 Silica in filtered water by reduced silicomolybdate acid colorimetry using a discrete analyzer
00955 CL160 Silica, filtered water, molybdate blue colorimetry, automated-segmented flow (USGS-NYL) USGS I-2700-85 USGS TWRI 5-A1/1989, p 417
00955 CL195 Silica, filtered water, molybdate blue colorimetry (NY WSC; ALSC)
00955 CL196 Silica, filtered water, molybdate blue colorimetry (NY WSC; KECK)
00955 MOLY1 SILICA DISSOLVED (MOLY-BLUE) USGS I-1700-77
00955 MOLY3 Molybdate-reactive silica
00955 MOLY4 Silica, water, filtered, molybdate reactive, automated segmented flow (ASF) colorimetry (USGS I-2700-85; USGSVAWC; VA-CLS) USGS I-2700-85
00955 PL051 Metals in Blank Water by ICP USGS OF 94-539
00955 PL089 SILICA DISSOLVED (ICP) (EPA) USEPA 200.7
00955 PL125 Calcium, magnesium, silicon, and aluminum, filtered water, ICP/OES (USGS-NYL)
00955 PL127 Elements, filtered water, ICP/OES (USGS-NYL)
00955 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00955 PLA06 Ocala Lab analysis of dissolved trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
00955 PLA09 Low level metals in filtered water, by ICP-AES USGS I-1472-87 USGS OF 93-125, p 101
00955 PLA11 Metals, filtered water, Inductively coupled plasma-atomic emmission spectrometry (NWQL) USGS I-1472-87 USGS OF 93-125, p 101
00955 PLA18 Trace elements in filtered water by ICP-AES (DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00955 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-87 USGS OF 93-125, p 101
00955 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-95 USGS OF 96-149
00955 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-85 USGS TWRI 5-A1/1989, p 517
00955 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00955 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
00955 PLM29 Ocala Lab analysis of trace elements in blank water by ICP-MS USEPA 200.8
00955 PLM58 Elements in filtered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00955 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00955 PLM69 Elements in filtered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
00955 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00955 PLO05 Trace and major elements, dissolved iron and silica in aqueous media by inductively coupled plasma-optical emmission spectroscopy (USGSTMCO)
00956 CL161 Silicon, unfiltered water, silicomolybdate colorimetry, flow injection analyzer (FIA) (USGS-NYL) USGS OF 95-416
00956 PL124 Calcium, magnesium, silicon, and aluminum, unfiltered water, ICP/OES (USGS-NYL)
00956 PL126 Elements, unfiltered water, ICP/OES (USGS-NYL)
00956 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00956 PLA15 Metals, unfiltered water, Inductively coupled plasma-atomic emission spectrometry USGS I-4471-97 USGS OF 98-165
00956 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00956 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00956 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
00956 PLM11 Elements in unfiltered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-4020-05 USGS TMR 5-B1
00956 PLM57 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00956 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00956 PLM70 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
00956 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00956 PLO06 Trace elements in unfiltered water by inductively coupled plasma-optical emmission spectroscopy (USGSTMCO) USGS OF 98-165
00956 PLO07 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-optical emission spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
00978 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00978 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
00978 PLM57 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00978 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00985 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00985 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00985 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
00985 PLM57 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
00985 PLM70 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
00985 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
00998 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
00998 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00998 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
00998 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
00998 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
00999 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
00999 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
01000 00009 Analysis of extract - custom
01000 G0041 Arsenic, water, filtered, colorimetric, silver diethyldithiocarbamate USGS I-1060-78 USGS OF 78-679, p 503
01000 G0041 Arsenic, water, filtered, colorimetric, silver diethyldithiocarbamate USGS I-1060-78 USGS TWRI 5-A1/1979, p 299
01000 GF030 Determination of trace elements by stabilized temperature graphite furnace atomic absorption USEPA 200.9 EPA-600/R-94/111
01000 GF042 ARSENIC DISSOLVED (GFAA) USEPA 206.2
01000 GF043 ARSENIC DISSOLVED LL (GFAA) USEPA 206.2
01000 GF085 Arsenic in Filtered Water by GFAAS USGS I-2063-98 USGS OF 98-639
01000 HY010 Arsenic in filtered water by automated sulfuric acid potassium persulfate digestion or ultraviolet radiation, hydride generation, and tube furnace AAS USGS I-2062-85 USGS TWRI 5-A1/1989, p 77
01000 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01000 PLA06 Ocala Lab analysis of dissolved trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01000 PLA18 Trace elements in filtered water by ICP-AES (DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01000 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
01000 PLA34 Trace elements in filtered water by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
01000 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
01000 PLM27 Trace elements in water and wastes by inductively coupled plasma - mass spectrometry without digestion USEPA 200.8 EPA-600/R-94/111
01000 PLM30 Ocala Lab analysis of trace elements in filtered water by ICP-MS USEPA 200.8
01000 PLM38 Metals in Blank Water by ICP-MS (constituents not described in the published method) USGS I-2477-92 USGS OF 92-634
01000 PLM39 Elements in filtered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
01000 PLM40 Metals in Water by ICP-MS (NWQL) USGS I-2477-92 USGS OF 92-634
01000 PLM42 Trace elements in filtered water and wastes by inductively coupled plasma - mass spectrometry USEPA 200.8 EPA-600/R-94/111
01000 PLM58 Elements in filtered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
01000 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
01000 PLM62 Trace elements in filtered water by inductively coupled plasma - mass spectrometry (California WSC) USEPA 200.8 EPA-600/R-94/111
01000 PLM63 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry (I-2020-05; Colorado WSC) USGS I-2020-05 USGS TMR 5-B1
01000 PLM67 Metals, water, filtered, inductively coupled plasma-mass spectrometry (EPA 200.8; Colorado WSC) USEPA 200.8
01000 PLM69 Elements in filtered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
01000 PLM72 Trace metals in aqueous media by inductively coupled plasma-mass spectroscopy (USGSTMCO)
01000 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01000 PLM81 Trace elements in filtered water by inductively coupled plasma-mass spectrometry (EPA 200.8; PA WSC; PA-DEP) USEPA 200.8
01001 B0085 Arsenic, suspended total constituents, calculation, total minus dissolved USGS I-7001-79 USGS OF 82-272, p 68
01002 G0042 Arsenic, water, unfiltered, colorimetric, silver diethyldithiocarbamate USGS I-3060-78 USGS OF 78-679, p 515
01002 G0042 Arsenic, water, unfiltered, colorimetric, silver diethyldithiocarbamate USGS I-3060-78 USGS TWRI 5-A1/1979, p 307
01002 GF031 EPA 200.9 determination of total recoverable trace elements in drinking water by GFAA USEPA 200.9
01002 GF044 ARSENIC TOTAL GFAA USEPA 206.2
01002 GF045 ARSENIC TOTAL LL (GFAA) USEPA 206.2
01002 GF073 Graphite furnace atomic absorption USGS I-0000-91
01002 GF096 Arsenic Recoverable from Unfiltered Water by GFAAS USGS I-4063-98 USGS OF 98-639
01002 HY013 Total arsenic in unfiltered water by automated sulfuric acid potassium persulfate digestion or ultraviolet radiation, hydride generation, and tube furnace AAS USGS I-4062-85 USGS TWRI 5-A1/1989, p 77
01002 PL120 Metals Recoverable from Unfiltered Water ICP-OES or ICP-MS (NWQL) USGS I-4471-97 USGS OF 98-165
01002 PL126 Elements, unfiltered water, ICP/OES (USGS-NYL)
01002 PL132 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry (EPA 200.8; PA WSC; PA-SLW) USEPA 200.8
01002 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01002 PLA07 Ocala Lab analysis of total trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01002 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01002 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
01002 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
01002 PLM11 Elements in unfiltered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-4020-05 USGS TMR 5-B1
01002 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
01002 PLM31 Ocala Lab analysis of trace elements in unfiltered water by ICP-MS USEPA 200.8
01002 PLM41 Elements in unfiltered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
01002 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
01002 PLM64 Elements in unfiltered water using collision/reaction cell inductively coupled plasma-mass spectrometry (I-4020-05; Colorado WSC) USGS I-4020-05 USGS TMR 5-B1
01002 PLM66 Metals, water, unfiltered, inductively coupled plasma-mass spectrometry (EPA 200.8; Colorado WSC) USEPA 200.8
01002 PLM70 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
01002 PLM73 Trace metals in unfiltered water by inductively coupled plasma-mass spectroscopy (USGSTMCO) USGS OF 98-165
01002 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01002 PLM77 Metals in unfiltered water, acid digest, corrected for 2% dilution, using collision/reaction cell inductively coupled plasma-mass spectrometry, NWQL TM 2015.01 mofication USGS I-4020-05
01003 00004 Determination of Elements in Reservoir and Lake Sediments for the NAWQA Reconstructed Trends National Systhesis by the USGS NRP Laboratory (Ted Callendar) in Reston, Virginia
01003 GF104 Arsenic Recoverable from Bed Sediment by GFAAS USGS I-6063-98 USGS OF 98-639
01003 HY015 Total arsenic in bottom material by automated sulfuric acid potassium persulfate digestion or ultraviolet radiation, hydride generation, and tube furnace AAS USGS I-6062-85 USGS TWRI 5-A1/1989, p 77
01003 HY017 Elements in bed sediment by Hydride Generation Inductively Coupled Plasma-Atomic Emission Spectrometry, Georgia WSC Sediment-Partitioning Research Lab Hydrological Processes, 2001, v 15, p 1107-1132
01003 HY017 Elements in bed sediment by Hydride Generation Inductively Coupled Plasma-Atomic Emission Spectrometry, Georgia WSC Sediment-Partitioning Research Lab USGS TWRI 5-A1/1989
01003 PL134 55 Elements in bed sediment by sodium peroxide sinter and ICP-AES-MS (ICP-55; Arizona WSC; USGSGDML) USGS OF 02-223
01003 PLM01 NAWQA Geologic Division Bed Sediment ICPMS 4 Acid Digestion - VanMetre Protocol (NWQL Schedule 3197) USGS OF 02-223
01005 AA003 Barium in filtered water by direct AAS USGS I-1084-85 USGS TWRI 5-A1/1989, p 89
01005 G0043 Barium, water, filtered, gravimetric USGS I-1080-78 USGS OF 78-679, p 901
01005 G0043 Barium, water, filtered, gravimetric USGS I-1080-78 USGS TWRI 5-A1/1979, p 553
01005 GF046 BARIUM DISSOLVED (GF) USEPA 208.2
01005 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01005 PLA06 Ocala Lab analysis of dissolved trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01005 PLA11 Metals, filtered water, Inductively coupled plasma-atomic emmission spectrometry (NWQL) USGS I-1472-87 USGS OF 93-125, p 101
01005 PLA18 Trace elements in filtered water by ICP-AES (DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01005 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-87 USGS OF 93-125, p 101
01005 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-95 USGS OF 96-149
01005 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-85 USGS TWRI 5-A1/1989, p 517
01005 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
01005 PLA34 Trace elements in filtered water by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
01005 PLM07 Metals in Blank Water by ICP-MS USGS I-2477-92 USGS OF 92-634
01005 PLM27 Trace elements in water and wastes by inductively coupled plasma - mass spectrometry without digestion USEPA 200.8 EPA-600/R-94/111
01005 PLM30 Ocala Lab analysis of trace elements in filtered water by ICP-MS USEPA 200.8
01005 PLM39 Elements in filtered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
01005 PLM42 Trace elements in filtered water and wastes by inductively coupled plasma - mass spectrometry USEPA 200.8 EPA-600/R-94/111
01005 PLM43 Metals, filtered water, Inductively coupled plasma-mass spectrometry USGS I-2477-92 USGS OF 92-634
01005 PLM58 Elements in filtered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
01005 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
01005 PLM62 Trace elements in filtered water by inductively coupled plasma - mass spectrometry (California WSC) USEPA 200.8 EPA-600/R-94/111
01005 PLM69 Elements in filtered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
01005 PLM72 Trace metals in aqueous media by inductively coupled plasma-mass spectroscopy (USGSTMCO)
01005 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01005 PLM79 Trace elements, water, filtered, syringe filtration and inductively coupled plasma mass spectrometry (ICPMS) (MN WSC) ES&T, 2003, v 37, no 17, p 3953-3957
01006 CAL10 Suspended recoverable constituents, calculation, total recoverable minus dissolved USGS I-7000-79
01007 AA042 Barium recoverable from unfiltered water by dilute HCl (USGS) digestion and direct AAS USGS I-3084-85 USGS TWRI 5-A1/1989, p 89
01007 GF033 BARIUM TOTAL (GF) USEPA 200.9
01007 PL081 Elements in drinking water by ICP-AES (EPA 200.7) USEPA 200.7
01007 PL086 Ocala Lab analysis of total trace elements by ICP USEPA 200.7
01007 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01007 PLA07 Ocala Lab analysis of total trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01007 PLA15 Metals, unfiltered water, Inductively coupled plasma-atomic emission spectrometry USGS I-4471-97 USGS OF 98-165
01007 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01007 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
01007 PLA40 Trace elements in unfiltered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; PA-DEP) USEPA 200.7 EPA 821-R-01-010
01007 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
01007 PLM41 Elements in unfiltered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
01007 PLM47 Metals, unfiltered water, Inductively coupled plasma-mass spectrometry USGS I-4471-97 USGS OF 98-165
01007 PLM57 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
01007 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
01007 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01007 PLM76 Trace elements in unfiltered water by inductively coupled plasma-mass spectrometry (ICP-MS) USEPA 200.8
01007 PLM78 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-mass spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
01007 PLM82 Trace elements in unfiltered water by inductively coupled plasma-mass spectrometry (EPA 200.8; PA WSC; PA-DEP) USEPA 200.8
01007 PLO04 Metals Recoverable from Unfiltered Water ICP-OES or ICP-MS (Ocala) USGS I-4471-97 USGS OF 98-165
01007 PLO07 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-optical emission spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
01008 00004 Determination of Elements in Reservoir and Lake Sediments for the NAWQA Reconstructed Trends National Systhesis by the USGS NRP Laboratory (Ted Callendar) in Reston, Virginia
01008 AA073 Barium recoverable from bottom material by hydrogen peroxide and dilute HCl (USGS) digestion, and direct AAS USGS I-5084-85 USGS TWRI 5-A1/1989, p 89
01008 PLA19 Trace elements in solids by inductively coupled plasma-atomic emission spectrometry USEPA 6010B EPA SW-846, Method 6010B
01008 PLA36 Trace elements in bed sediments by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
01008 PLM01 NAWQA Geologic Division Bed Sediment ICPMS 4 Acid Digestion - VanMetre Protocol (NWQL Schedule 3197) USGS OF 02-223
01008 PLM50 Add-on to elements recoverable from bed sediment by microwave assisted digestion (EPA 3051A) and inductively coupled plasma-mass spectrometry USGS I-5020-05 USGS TMR 5-B1
01008 PLM71 Elements in bed sediment by inductively coupled plasma-mass spectrometry (EPA 6020A; DODESP) USEPA 6020A EPA SW-846
01009 PLM70 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
01010 AA004 Beryllium in filtered water by direct AAS USGS I-1095-85 USGS TWRI 5-A1/1989, p 93
01010 PL088 Ocala Lab low level analysis of dissolved trace elements by ICP USEPA 200.7
01010 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01010 PLA06 Ocala Lab analysis of dissolved trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01010 PLA11 Metals, filtered water, Inductively coupled plasma-atomic emmission spectrometry (NWQL) USGS I-1472-87 USGS OF 93-125, p 101
01010 PLA18 Trace elements in filtered water by ICP-AES (DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01010 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
01010 PLA34 Trace elements in filtered water by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
01010 PLM07 Metals in Blank Water by ICP-MS USGS I-2477-92 USGS OF 92-634
01010 PLM30 Ocala Lab analysis of trace elements in filtered water by ICP-MS USEPA 200.8
01010 PLM39 Elements in filtered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
01010 PLM42 Trace elements in filtered water and wastes by inductively coupled plasma - mass spectrometry USEPA 200.8 EPA-600/R-94/111
01010 PLM43 Metals, filtered water, Inductively coupled plasma-mass spectrometry USGS I-2477-92 USGS OF 92-634
01010 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
01010 PLM62 Trace elements in filtered water by inductively coupled plasma - mass spectrometry (California WSC) USEPA 200.8 EPA-600/R-94/111
01010 PLM72 Trace metals in aqueous media by inductively coupled plasma-mass spectroscopy (USGSTMCO)
01010 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01011 G0044 Beryllium, suspended recoverable constituents, calculation, total recoverable minus dissolved USGS I-7000-79 USGS OF 82-272, p 69
01012 AA043 Beryllium recoverable from unfiltered water by dilute HCl (USGS) digestion and direct AAS USGS I-3095-85 USGS TWRI 5-A1/1989, p 93
01012 PL081 Elements in drinking water by ICP-AES (EPA 200.7) USEPA 200.7
01012 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01012 PLA07 Ocala Lab analysis of total trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01012 PLA15 Metals, unfiltered water, Inductively coupled plasma-atomic emission spectrometry USGS I-4471-97 USGS OF 98-165
01012 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01012 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
01012 PLM41 Elements in unfiltered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
01012 PLM47 Metals, unfiltered water, Inductively coupled plasma-mass spectrometry USGS I-4471-97 USGS OF 98-165
01012 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01012 PLM78 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-mass spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
01012 PLO04 Metals Recoverable from Unfiltered Water ICP-OES or ICP-MS (Ocala) USGS I-4471-97 USGS OF 98-165
01012 PLO07 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-optical emission spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
01013 00004 Determination of Elements in Reservoir and Lake Sediments for the NAWQA Reconstructed Trends National Systhesis by the USGS NRP Laboratory (Ted Callendar) in Reston, Virginia
01013 AA074 Beryllium recoverable from bottom material by hydrogen peroxide and dilute HCl (USGS) digestion, and direct AAS USGS I-5095-85 USGS TWRI 5-A1/1989, p 93
01013 PLA19 Trace elements in solids by inductively coupled plasma-atomic emission spectrometry USEPA 6010B EPA SW-846, Method 6010B
01013 PLA36 Trace elements in bed sediments by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
01013 PLM01 NAWQA Geologic Division Bed Sediment ICPMS 4 Acid Digestion - VanMetre Protocol (NWQL Schedule 3197) USGS OF 02-223
01013 PLM50 Add-on to elements recoverable from bed sediment by microwave assisted digestion (EPA 3051A) and inductively coupled plasma-mass spectrometry USGS I-5020-05 USGS TMR 5-B1
01015 PLM43 Metals, filtered water, Inductively coupled plasma-mass spectrometry USGS I-2477-92 USGS OF 92-634
01015 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
01015 PLM72 Trace metals in aqueous media by inductively coupled plasma-mass spectroscopy (USGSTMCO)
01015 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01017 PLM54 Custom add-ons to elements in unfiltered water, TMR Book 5, Section B, Chapter 1 (method code for constituents not included in the published method)
01017 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
01017 PLM73 Trace metals in unfiltered water by inductively coupled plasma-mass spectroscopy (USGSTMCO) USGS OF 98-165
01017 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01020 CL026 Boron in filtered water by reaction with dianthrimide and colorimetry USGS I-1110-85 USGS TWRI 5-A1/1989, p 107
01020 DCP03 Boron in filtered water, by DCP-AES USGS I-1114-86 USGS OF 93-125, p 47
01020 PL051 Metals in Blank Water by ICP USGS OF 94-539
01020 PL084 Ocala Lab analysis of dissolved trace elements by ICP USEPA 200.7
01020 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01020 PLA06 Ocala Lab analysis of dissolved trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01020 PLA13 Metals, filtered water, add, Inductively coupled plasma-atomic emmission spectrometry USGS I-1472-95 USGS OF 96-149
01020 PLA18 Trace elements in filtered water by ICP-AES (DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01020 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-87 USGS OF 93-125, p 101
01020 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-95 USGS OF 96-149
01020 PLA24 Metals in filtered water by ICP-AES (NRP and CO WSC) USGS I-1472-85 USGS TWRI 5-A1/1989, p 517
01020 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
01020 PLA34 Trace elements in filtered water by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
01020 PLM30 Ocala Lab analysis of trace elements in filtered water by ICP-MS USEPA 200.8
01020 PLM40 Metals in Water by ICP-MS (NWQL) USGS I-2477-92 USGS OF 92-634
01020 PLM67 Metals, water, filtered, inductively coupled plasma-mass spectrometry (EPA 200.8; Colorado WSC) USEPA 200.8
01020 PLM72 Trace metals in aqueous media by inductively coupled plasma-mass spectroscopy (USGSTMCO)
01020 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01020 PLO05 Trace and major elements, dissolved iron and silica in aqueous media by inductively coupled plasma-optical emmission spectroscopy (USGSTMCO)
01022 CL068 Boron recoverable from unfiltered water by dilute HCl (USGS) digestion, reaction with dianthrimide, and colorimetry USGS I-3110-85 USGS TWRI 5-A1/1989, p 107
01022 DCP06 Boron in unfiltered water, by DCP-AES USGS I-3114-86 USGS OF 93-125, p 47
01022 PL086 Ocala Lab analysis of total trace elements by ICP USEPA 200.7
01022 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01022 PLA07 Ocala Lab analysis of total trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01022 PLA15 Metals, unfiltered water, Inductively coupled plasma-atomic emission spectrometry USGS I-4471-97 USGS OF 98-165
01022 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01022 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
01022 PLA40 Trace elements in unfiltered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; PA-DEP) USEPA 200.7 EPA 821-R-01-010
01022 PLA41 Trace elements, low level (LL), in unfiltered water by inductively coupled plasma-atomic emission spectrometry (EPA 200.7; PA WSC; PA-DEP) USEPA 200.7 EPA 821-R-01-010
01022 PLM19 BORON TOTAL ICP-MS STDMETH 3125B Standard Methods
01022 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
01022 PLM47 Metals, unfiltered water, Inductively coupled plasma-mass spectrometry USGS I-4471-97 USGS OF 98-165
01022 PLM78 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-mass spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
01022 PLO07 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-optical emission spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
01023 DCP09 Boron recoverable from bottom material, by DCP-AES USGS I-5114-86 USGS OF 93-125, p 47
01023 G0045 Boron, recoverable from bottom material, colorimetric, dianthrimide USGS I-5110-78 USGS OF 78-679, p 537
01023 G0045 Boron, recoverable from bottom material, colorimetric, dianthrimide USGS I-5110-78 USGS TWRI 5-A1/1979, p 319
01023 MCW01 Microwave assisted acid digestion of sediments, sludges, soils, and oils USEPA 3051 EPA SW-846
01023 PLA14 Metals, bed sediment, Inductively coupled plasma-atomic emission spectrometry USGS I-5020-05 USGS TMR 5-B1
01023 PLA36 Trace elements in bed sediments by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
01025 AA005 Cadmium in filtered water by direct AAS USGS I-1135-85 USGS TWRI 5-A1/1989, p 127
01025 CX002 Cadmium in filtered water by chelation-extraction with APDC and MIBK, and AAS USGS I-1136-85 USGS TWRI 5-A1/1989, p 125
01025 GF003 GFAA, Cadmium, FIL
01025 GF047 CADMIUM DISSOLVED LL (GFAA) USEPA 213.2
01025 GF074 Cadmium in low ionic strength water by GFAAS USGS I-1137-85 USGS TWRI 5-A1/1989, p 129
01025 GF086 Cadmium in filtered water, by GF-AAS USGS I-2138-89 USGS OF 93-125, p 53
01025 PL127 Elements, filtered water, ICP/OES (USGS-NYL)
01025 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01025 PLA05 Metals and trace elements in water and wastes by ICP-AES (EPA 200.7; Colorado WSC) USEPA 200.7 EPA-600/R-94/111
01025 PLA06 Ocala Lab analysis of dissolved trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01025 PLA11 Metals, filtered water, Inductively coupled plasma-atomic emmission spectrometry (NWQL) USGS I-1472-87 USGS OF 93-125, p 101
01025 PLA18 Trace elements in filtered water by ICP-AES (DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01025 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
01025 PLA34 Trace elements in filtered water by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
01025 PLM07 Metals in Blank Water by ICP-MS USGS I-2477-92 USGS OF 92-634
01025 PLM27 Trace elements in water and wastes by inductively coupled plasma - mass spectrometry without digestion USEPA 200.8 EPA-600/R-94/111
01025 PLM30 Ocala Lab analysis of trace elements in filtered water by ICP-MS USEPA 200.8
01025 PLM39 Elements in filtered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
01025 PLM42 Trace elements in filtered water and wastes by inductively coupled plasma - mass spectrometry USEPA 200.8 EPA-600/R-94/111
01025 PLM43 Metals, filtered water, Inductively coupled plasma-mass spectrometry USGS I-2477-92 USGS OF 92-634
01025 PLM58 Elements in filtered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
01025 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
01025 PLM62 Trace elements in filtered water by inductively coupled plasma - mass spectrometry (California WSC) USEPA 200.8 EPA-600/R-94/111
01025 PLM63 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry (I-2020-05; Colorado WSC) USGS I-2020-05 USGS TMR 5-B1
01025 PLM67 Metals, water, filtered, inductively coupled plasma-mass spectrometry (EPA 200.8; Colorado WSC) USEPA 200.8
01025 PLM69 Elements in filtered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
01025 PLM72 Trace metals in aqueous media by inductively coupled plasma-mass spectroscopy (USGSTMCO)
01025 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01025 PLM81 Trace elements in filtered water by inductively coupled plasma-mass spectrometry (EPA 200.8; PA WSC; PA-DEP) USEPA 200.8
01026 B0086 Cadmium, suspended recoverable constituents, calculation, total recoverable minus dissolved USGS I-7000-79 USGS OF 82-272, p 69
01027 AA044 Cadmium recoverable from unfiltered water by dilute HCl (USGS) digestion and direct AAS USGS I-3135-85 USGS TWRI 5-A1/1989, p 127
01027 CX013 Cadmium recoverable from unfiltered water by dilute HCl (USGS) digestion, chelation-extraction with APDC and MIBK, and AAS USGS I-3136-85 USGS TWRI 5-A1/1989, p 125
01027 GF004 GFAA, Cadmium, TOT
01027 GF031 EPA 200.9 determination of total recoverable trace elements in drinking water by GFAA USEPA 200.9
01027 GF048 CADMIUM TOTAL LL (GFAA) USEPA 213.2
01027 GF097 Cadmium in unfiltered water, by GF-AAS USGS I-4138-89 USGS OF 93-125, p 53
01027 PL096 CADMIUM TOTAL (ICP) USEPA 213.2
01027 PL126 Elements, unfiltered water, ICP/OES (USGS-NYL)
01027 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01027 PLA07 Ocala Lab analysis of total trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01027 PLA15 Metals, unfiltered water, Inductively coupled plasma-atomic emission spectrometry USGS I-4471-97 USGS OF 98-165
01027 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01027 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
01027 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
01027 PLM41 Elements in unfiltered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
01027 PLM47 Metals, unfiltered water, Inductively coupled plasma-mass spectrometry USGS I-4471-97 USGS OF 98-165
01027 PLM61 Trace elements in unfiltered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
01027 PLM65 Metals, unfiltered water, inductively coupled plasma-mass spectrometry (I-4471-97; Colorado WSC) USGS I-4471-97 USGS OF 98-165
01027 PLM70 Elements in unfiltered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
01027 PLM73 Trace metals in unfiltered water by inductively coupled plasma-mass spectroscopy (USGSTMCO) USGS OF 98-165
01027 PLM75 Elements in unfiltered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01027 PLM78 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-mass spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
01027 PLO04 Metals Recoverable from Unfiltered Water ICP-OES or ICP-MS (Ocala) USGS I-4471-97 USGS OF 98-165
01027 PLO07 Metals, unfiltered water, acid digest, corrected for 2% dilution, inductively coupled plasma-optical emission spectrometry, NWQL TM 2015.01 modification USGS I-4471-97
01028 00004 Determination of Elements in Reservoir and Lake Sediments for the NAWQA Reconstructed Trends National Systhesis by the USGS NRP Laboratory (Ted Callendar) in Reston, Virginia
01028 AA075 Cadmium recoverable from bottom material by hydrogen peroxide and dilute HCl (USGS) digestion, and direct AAS USGS I-5135-85 USGS TWRI 5-A1/1989, p 127
01028 MCW01 Microwave assisted acid digestion of sediments, sludges, soils, and oils USEPA 3051 EPA SW-846
01028 PLA19 Trace elements in solids by inductively coupled plasma-atomic emission spectrometry USEPA 6010B EPA SW-846, Method 6010B
01028 PLA36 Trace elements in bed sediments by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
01028 PLM01 NAWQA Geologic Division Bed Sediment ICPMS 4 Acid Digestion - VanMetre Protocol (NWQL Schedule 3197) USGS OF 02-223
01028 PLM46 Metals, bed sediment, Inductively coupled plasma-mass spectrometry USGS I-5020-05 USGS TMR 5-B1
01028 PLM71 Elements in bed sediment by inductively coupled plasma-mass spectrometry (EPA 6020A; DODESP) USEPA 6020A EPA SW-846
01029 00004 Determination of Elements in Reservoir and Lake Sediments for the NAWQA Reconstructed Trends National Systhesis by the USGS NRP Laboratory (Ted Callendar) in Reston, Virginia
01029 AA077 Chromium recoverable from bottom material by hydrogen peroxide and dilute HCl (USGS) digestion, and direct AAS USGS I-5236-85 USGS TWRI 5-A1/1989, p 167
01029 G0046 NWQL method number I-5238-77. No published method has been found for this method number. USGS I-5238-77
01029 MCW01 Microwave assisted acid digestion of sediments, sludges, soils, and oils USEPA 3051 EPA SW-846
01029 PLA14 Metals, bed sediment, Inductively coupled plasma-atomic emission spectrometry USGS I-5020-05 USGS TMR 5-B1
01029 PLA19 Trace elements in solids by inductively coupled plasma-atomic emission spectrometry USEPA 6010B EPA SW-846, Method 6010B
01029 PLA36 Trace elements in bed sediments by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
01029 PLM01 NAWQA Geologic Division Bed Sediment ICPMS 4 Acid Digestion - VanMetre Protocol (NWQL Schedule 3197) USGS OF 02-223
01029 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
01029 PLM13 Elements in sediment or soil using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-5020-05 USGS TMR 5-B1
01029 PLM71 Elements in bed sediment by inductively coupled plasma-mass spectrometry (EPA 6020A; DODESP) USEPA 6020A EPA SW-846
01030 AA011 Chromium in filtered water by direct AAS USGS I-1236-85 USGS TWRI 5-A1/1989, p 167
01030 CX004 Chromium in filtered water by chelation-extraction with APDC and MIBK, and AAS USGS I-1238-85 USGS TWRI 5-A1/1989, p 163
01030 DCP04 Chromium in filtered water, by DCP-AES USGS I-1229-87 USGS OF 93-125, p 59
01030 GF006 GFAA, Chromium, FIL
01030 GF075 Chromium in Filtered Water by GFAAS USGS I-1233-93 USGS OF 93-449
01030 GF076 Chromium in low ionic strength water by GFAAS USGS I-1235-85 USGS TWRI 5-A1/1989, p 169
01030 GF106 Chromium in Filtered Water by GFAAS (unknown owner) USGS I-1233-93 USGS OF 93-449
01030 PL133 Elements in filtered water by inductively coupled plasma-mass spectrometry (EPA 6020A; DODESP) USEPA 6020A
01030 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01030 PLA05 Metals and trace elements in water and wastes by ICP-AES (EPA 200.7; Colorado WSC) USEPA 200.7 EPA-600/R-94/111
01030 PLA06 Ocala Lab analysis of dissolved trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01030 PLA11 Metals, filtered water, Inductively coupled plasma-atomic emmission spectrometry (NWQL) USGS I-1472-87 USGS OF 93-125, p 101
01030 PLA18 Trace elements in filtered water by ICP-AES (DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01030 PLA25 Trace elements in filtered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
01030 PLA34 Trace elements in filtered water by inductively coupled plasma-atomic emission spectrometry (EPA method 6010C; DODESP) USEPA 6010C
01030 PLM07 Metals in Blank Water by ICP-MS USGS I-2477-92 USGS OF 92-634
01030 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
01030 PLM26 Trace Elements in Water & Wastes - ICP/MS USEPA 200.8 EPA-600/R-94/111
01030 PLM27 Trace elements in water and wastes by inductively coupled plasma - mass spectrometry without digestion USEPA 200.8 EPA-600/R-94/111
01030 PLM30 Ocala Lab analysis of trace elements in filtered water by ICP-MS USEPA 200.8
01030 PLM39 Elements in filtered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
01030 PLM40 Metals in Water by ICP-MS (NWQL) USGS I-2477-92 USGS OF 92-634
01030 PLM42 Trace elements in filtered water and wastes by inductively coupled plasma - mass spectrometry USEPA 200.8 EPA-600/R-94/111
01030 PLM58 Elements in filtered water by inductively coupled plasma-mass spectrometry (CO WSC) USEPA 6020A EPA SW-846, Method 6020A
01030 PLM60 Trace elements in filtered water by ICP-MS (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-H
01030 PLM62 Trace elements in filtered water by inductively coupled plasma - mass spectrometry (California WSC) USEPA 200.8 EPA-600/R-94/111
01030 PLM67 Metals, water, filtered, inductively coupled plasma-mass spectrometry (EPA 200.8; Colorado WSC) USEPA 200.8
01030 PLM69 Elements in filtered water by inductively coupled plasma-mass spectrometry (Idaho WSC)
01030 PLM71 Elements in bed sediment by inductively coupled plasma-mass spectrometry (EPA 6020A; DODESP) USEPA 6020A EPA SW-846
01030 PLM72 Trace metals in aqueous media by inductively coupled plasma-mass spectroscopy (USGSTMCO)
01030 PLM74 Elements in filtered water by quadrupole inductively coupled plasma-mass spectrometry (CO WSC)
01031 CAL10 Suspended recoverable constituents, calculation, total recoverable minus dissolved USGS I-7000-79
01032 CX003 Hexavalent chromium in filtered water by chelation-extraction with APDC and MIBK, and AAS USGS I-1232-85 USGS TWRI 5-A1/1989, p 175
01032 GF027 Cation exchange Resin + Zeeman corrected Graphite Furnace Atomic Absorption Spectroscopy Talanta, 2003, v 61, p 305-313
01032 GF108 Chromium(VI) in filtered water, extracted with cation exchange resin and quantified by Zeeman corrected graphite furnace atomic absorption spectroscopy Talanta, 2003, v 61, p 305-313
01032 IC008 Separation of Cr(VI) species by ion chromatography and analysis by spectrophotometry USEPA 218.6 Arar et al, 1991, Determin. diss. Cr(VI)
01032 IC033 Chromium (VI) in filtered water by ion chromatography with post column derivatization USEPA 218.6
01032 IC044 Chromium(VI) in filtered water by ion chromatography (IC) with post-column derivatization and UV-visible spectroscopy (EPA 218.7; CA WSC) USEPA 218.7
01032 IC058 Chromium(VI) in filtered water by ion chromatography (EPA 218.6; NJ WSC; NJ-DOH lab) USEPA 218.6
01032 PLM59 Trace element speciation, filtered water, solid-phase extraction with ammonium nitrate mobile phase, LC/ICP-MS
01033 G0047 NWQL method number I-1233-77. No published method has been found for this method number. USGS I-1233-77
01034 AA048 Chromium recoverable from unfiltered water by dilute HCl (USGS) digestion and direct AAS USGS I-3236-85 USGS TWRI 5-A1/1989, p 167
01034 CX014 Chromium recoverable from unfiltered water by dilute HCl (USGS) digestion, chelation-extraction with APDC and MIBK, and AAS USGS I-3238-85 USGS TWRI 5-A1/1989, p 163
01034 DCP07 Chromium recoverable from unfiltered water, by DCP-AES USGS I-3229-87 USGS OF 93-125, p 59
01034 GF007 GFAA, Chromium, WWR
01034 GF031 EPA 200.9 determination of total recoverable trace elements in drinking water by GFAA USEPA 200.9
01034 GF049 CHROMIUM TOTAL (GFAA-EPA) USEPA 218.2
01034 GF094 Chromium in Unfiltered Water by GFAAS USGS I-3233-93 USGS OF 93-449
01034 PL086 Ocala Lab analysis of total trace elements by ICP USEPA 200.7
01034 PLA04 Metals and trace elements in water and wastes by ICP-AES USEPA 200.7
01034 PLA07 Ocala Lab analysis of total trace elements by Inductively Coupled Plasma--Atomic Emission Spectrometry (ICP/T) USEPA 200.7
01034 PLA15 Metals, unfiltered water, Inductively coupled plasma-atomic emission spectrometry USGS I-4471-97 USGS OF 98-165
01034 PLA17 Trace elements in unfiltered water by ICP-AES (EPA method 6010B; DODEC program) USEPA 6010B EPA SW-846, Method 6010B
01034 PLA26 Trace elements in unfiltered water by ICP-AES (USGS Geologic Discipline Mineral Resources Lab, Denver) USGS OF 02-223-F
01034 PLM10 Elements in filtered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-2020-05 USGS TMR 5-B1
01034 PLM11 Elements in unfiltered water using collision/reaction cell inductively coupled plasma-mass spectrometry USGS I-4020-05 USGS TMR 5-B1
01034 PLM28 Trace elements in unfiltered water and wastes by inductively coupled plasma-mass spectrometry USEPA 200.8 EPA-600/R-94/111
01034 PLM41 Elements in unfiltered water samples and waste extracts or digests by inductively coupled plasma - mass spectrometry USEPA 6020 EPA SW-846
01034 PLM47 Metals, unfiltered water, Inductively coupled plasma-mass spectrometry USGS I-4471-97 USGS OF 98-165
01034 PLM57