You are here: Home

Parameter Code Definition

CAS Registry Number® is a Registered Trademark of the American Chemical Society. CAS recommends the verification of the CASRNs through CAS Client ServicesSM.

Parameter Code Group Name Parameter Name/Description Epa equivalence Result Statistical Basis Result Time Basis Result Weight Basis Result Particle Size Basis Result Sample Fraction Result Temperature Basis CASRN SRSName Parameter Unit
00715 Inorganics, Minor, Non-metals Cyanide, free, soil, dry weight, milligrams per kilogram Not checked Total mg/kg
00716 Inorganics, Minor, Non-metals Cyanide, free, bed sediment, dry weight, milligrams per kilogram Not checked Bed Sediment mg/kg
00717 Inorganics, Minor, Non-metals Cyanide, weak acid, dissociable, water, filtered, micrograms per liter Not checked Dissolved 57-12-5 Cyanide ug/l
00718 Inorganics, Minor, Non-metals Cyanide, weak acid, dissociable, water, unfiltered, micrograms per liter Agree Total 57-12-5 ug/l
00720 Inorganics, Minor, Non-metals Cyanide, water, unfiltered, milligrams per liter Agree Total 57-12-5 Cyanide mg/l
00721 Inorganics, Minor, Non-metals Cyanide, bed sediment, total, dry weight, milligrams per kilogram Not agree Dry Bed Sediment 57-12-5 Cyanide mg/kg
00722 Inorganics, Minor, Non-metals Cyanide, free, amenable to chlorination, water, unfiltered, milligrams per liter Not checked Total Cyanides amenable to chlorination (HCN & CN) mg/l
00723 Inorganics, Minor, Non-metals Cyanide, water, filtered, milligrams per liter Not agree Dissolved 57-12-5 Cyanide mg/l
00730 Inorganics, Minor, Non-metals Thiocyanate, water, unfiltered, milligrams per liter Agree Total 302-04-5 Thiocyanate mg/l
00731 Inorganics, Minor, Non-metals Thiocyanate, water, filtered, milligrams per liter Agree Dissolved 302-04-5 Thiocyanate mg/l
00738 Inorganics, Minor, Non-metals Tetrathionate, water, filtered, milligrams per liter Agree Dissolved 15536-54-6 mg/l
00739 Inorganics, Minor, Non-metals Tetrathionate, water, unfiltered, milligrams per liter Agree Total 15536-54-6 mg/l
00740 Inorganics, Minor, Non-metals Sulfite, water, unfiltered, milligrams per liter Not checked Total 14265-45-3 Sulfite (SO3) mg/l
00978 Inorganics, Minor, Non-metals Arsenic, water, unfiltered, recoverable, micrograms per liter Agree Recoverable 7440-38-2 Arsenic ug/l
00997 Inorganics, Minor, Non-metals Inorganic arsenic, water, unfiltered, micrograms per liter as arsenic Agree Total ug/l
00999 Inorganics, Minor, Non-metals Boron, water, unfiltered, recoverable, micrograms per liter Agree Recoverable 7440-42-8 Boron ug/l
01000 Inorganics, Minor, Non-metals Arsenic, water, filtered, micrograms per liter Agree Dissolved 7440-38-2 Arsenic ug/l
01001 Inorganics, Minor, Non-metals Arsenic, suspended sediment, total, micrograms per liter Not agree Suspended 7440-38-2 Arsenic ug/l
01002 Inorganics, Minor, Non-metals Arsenic, water, unfiltered, micrograms per liter Agree Total 7440-38-2 Arsenic ug/l
01003 Inorganics, Minor, Non-metals Arsenic, bed sediment, total digestion, dry weight, milligrams per kilogram Not agree Dry Bed Sediment 7440-38-2 Arsenic mg/kg
01020 Inorganics, Minor, Non-metals Boron, water, filtered, micrograms per liter Agree Dissolved 7440-42-8 Boron ug/l
01021 Inorganics, Minor, Non-metals Boron, suspended sediment, recoverable, micrograms per liter Not agree Suspended 7440-42-8 Boron ug/l
01022 Inorganics, Minor, Non-metals Boron, water, unfiltered, recoverable, micrograms per liter Not agree Recoverable 7440-42-8 Boron ug/l
01023 Inorganics, Minor, Non-metals Boron, bed sediment, recoverable, dry weight, milligrams per kilogram Not agree Dry Bed Sediment 7440-42-8 Boron mg/kg
01064 Inorganics, Minor, Non-metals Tellurium, water, unfiltered, micrograms per liter Not checked Total 13494-80-9 Tellurium ug/l
01095 Inorganics, Minor, Non-metals Antimony, water, filtered, micrograms per liter Agree Dissolved 7440-36-0 Antimony ug/l
01096 Inorganics, Minor, Non-metals Antimony, suspended sediment, total, micrograms per liter Not checked Suspended 7440-36-0 Antimony ug/l
01097 Inorganics, Minor, Non-metals Antimony, water, unfiltered, micrograms per liter Not checked Total 7440-36-0 Antimony ug/l
01098 Inorganics, Minor, Non-metals Antimony, bed sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 7440-36-0 Antimony mg/kg
01125 Inorganics, Minor, Non-metals Germanium, water, filtered, micrograms per liter Agree Dissolved 7440-56-4 Germanium ug/l
01126 Inorganics, Minor, Non-metals Germanium, suspended sediment, total, micrograms per liter Not checked Suspended 7440-56-4 Germanium ug/l
01127 Inorganics, Minor, Non-metals Germanium, water, unfiltered, micrograms per liter Not checked Total 7440-56-4 Germanium ug/l
01145 Inorganics, Minor, Non-metals Selenium, water, filtered, micrograms per liter Agree Dissolved 7782-49-2 Selenium ug/l
01146 Inorganics, Minor, Non-metals Selenium, suspended sediment, total, micrograms per liter Not checked Suspended 7782-49-2 Selenium ug/l
01147 Inorganics, Minor, Non-metals Selenium, water, unfiltered, micrograms per liter Not checked Total 7782-49-2 Selenium ug/l
01148 Inorganics, Minor, Non-metals Selenium, bed sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 7782-49-2 Selenium mg/kg
01227 Inorganics, Minor, Non-metals Selenium, soluble, dry atmospheric deposition, micrograms per kilogram Agree 7782-49-2 Selenium ug/kg
01228 Inorganics, Minor, Non-metals Selenium, insoluble, dry atmospheric deposition, micrograms per kilogram Agree 7782-49-2 Selenium ug/kg
01229 Inorganics, Minor, Non-metals Selenium, total, dry atmospheric deposition, micrograms per kilogram Agree Total 7782-49-2 Selenium ug/kg
01251 Inorganics, Minor, Non-metals Dimethyl selenoxide, water, filtered, recoverable, micrograms per liter as selenium Not checked Dissolved 4371-90-8 ug/l
01252 Inorganics, Minor, Non-metals Selenosulfate, water, filtered, recoverable, micrograms per liter as selenium Not checked Dissolved 16450-48-9 ug/l
01253 Inorganics, Minor, Non-metals Selenium species minus known selenium species (Se(IV) + Se(VI) + SeCN + MeSe(IV) + SeMet + SeSO3 + DMSeO + MeSe(VI)), water, filtered, recoverable, micrograms per liter Not checked Dissolved ug/l
01399 Inorganics, Minor, Non-metals Antimony, soil, total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Total 7440-36-0 Antimony mg/kg
01400 Inorganics, Minor, Non-metals Arsenic, soil, total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Total 7440-38-2 Arsenic mg/kg
01414 Inorganics, Minor, Non-metals Selenium, soil, total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Total 7782-49-2 Selenium mg/kg
01439 Inorganics, Minor, Non-metals Antimony, biota, tissue, total digestion, dry weight, milligrams per kilogram Not checked Dry 7440-36-0 Antimony mg/kg
01440 Inorganics, Minor, Non-metals Arsenic, biota, tissue, total digestion, dry weight, milligrams per kilogram Not checked Dry 7440-38-2 Arsenic mg/kg
01454 Inorganics, Minor, Non-metals Selenium, biota, tissue, total digestion, dry weight, milligrams per kilogram Not checked Dry 7782-49-2 Selenium mg/kg
01487 Inorganics, Minor, Non-metals Tellurium, bed sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 13494-80-9 mg/kg
03918 Inorganics, Minor, Non-metals Tellurium, biota, tissue, total digestion, dry weight, milligrams per kilogram Not checked Dry 13494-80-9 mg/kg
03928 Inorganics, Minor, Non-metals Selenium, bed sediment smaller than 62.5 microns, wet sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry < 0.0625 Bed Sediment 7782-49-2 Selenium mg/kg
03929 Inorganics, Minor, Non-metals Antimony, bed sediment smaller than 62.5 microns, wet sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry < 0.0625 Bed Sediment 7440-36-0 Antimony mg/kg
03933 Inorganics, Minor, Non-metals Arsenic, bed sediment smaller than 62.5 microns, wet sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry < 0.0625 Bed Sediment 7440-38-2 Arsenic mg/kg
04043 Inorganics, Minor, Non-metals Antimony, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, milligrams per kilogram Not checked Dry < 2 mm Bed Sediment 7440-36-0 Antimony mg/kg
04044 Inorganics, Minor, Non-metals Arsenic, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, milligrams per kilogram Not checked Dry < 2 mm Bed Sediment 7440-38-2 Arsenic mg/kg
04048 Inorganics, Minor, Non-metals Boron, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, milligrams per kilogram Not checked Dry < 2 mm Bed Sediment 7440-42-8 Boron mg/kg
04057 Inorganics, Minor, Non-metals Germanium, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, milligrams per kilogram Not checked Dry < 2 mm Bed Sediment 7440-56-4 Germanium mg/kg
29816 Inorganics, Minor, Non-metals Antimony, suspended sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Suspended 7440-36-0 Antimony mg/kg
29817 Inorganics, Minor, Non-metals Antimony, soil, recoverable, dry weight, milligrams per kilogram Agree Dry Recoverable 7440-36-0 Antimony mg/kg
29818 Inorganics, Minor, Non-metals Arsenic, suspended sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Suspended 7440-38-2 Arsenic mg/kg
29819 Inorganics, Minor, Non-metals Arsenic, soil, recoverable, dry weight, milligrams per kilogram Agree Dry Recoverable 7440-38-2 Arsenic mg/kg
29824 Inorganics, Minor, Non-metals Boron, suspended sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Suspended 7440-42-8 Boron mg/kg
29825 Inorganics, Minor, Non-metals Boron, soil, recoverable, dry weight, milligrams per kilogram Agree Dry Recoverable 7440-42-8 Boron mg/kg
29847 Inorganics, Minor, Non-metals Selenium, suspended sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Suspended 7782-49-2 Selenium mg/kg
29848 Inorganics, Minor, Non-metals Selenium, soil, recoverable, dry weight, milligrams per kilogram Agree Dry Recoverable 7782-49-2 Selenium mg/kg
30222 Inorganics, Minor, Non-metals Antimony, bed sediment, dry weight, percent Agree Dry Bed Sediment 7440-36-0 Antimony %
30223 Inorganics, Minor, Non-metals Antimony, suspended sediment, total digestion, dry weight, percent Not checked Dry Suspended 7440-36-0 Antimony %
30224 Inorganics, Minor, Non-metals Arsenic, bed sediment, dry weight, percent Agree Dry Bed Sediment 7440-38-2 Arsenic %
30225 Inorganics, Minor, Non-metals Arsenic, suspended sediment, total digestion, dry weight, percent Not checked Dry Suspended 7440-38-2 Arsenic %
30232 Inorganics, Minor, Non-metals Boron, bed sediment, dry weight, percent Agree Dry Bed Sediment 7440-42-8 Boron %
30233 Inorganics, Minor, Non-metals Boron, suspended sediment, total digestion, dry weight, percent Not checked Dry Suspended 7440-42-8 Boron %
30260 Inorganics, Minor, Non-metals Germanium, bed sediment, dry weight, percent Agree Dry Bed Sediment 7440-56-4 Germanium %
30261 Inorganics, Minor, Non-metals Germanium, suspended sediment, total digestion, dry weight, percent Not checked Dry Suspended 7440-56-4 Germanium %
30299 Inorganics, Minor, Non-metals Selenium, bed sediment, dry weight, milligrams per kilogram Not agree Dry Bed Sediment 7782-49-2 Selenium mg/kg
30300 Inorganics, Minor, Non-metals Selenium, suspended sediment, total digestion, dry weight, milligrams per kilogram Not agree Dry Suspended 7782-49-2 Selenium mg/kg
30361 Inorganics, Minor, Non-metals Perchlorate, bed sediment, recoverable, dry weight, micrograms per kilogram Not checked Dry Bed Sediment 14797-73-0 ug/kg
34225 Inorganics, Minor, Non-metals Asbestos (fibrous), water, unfiltered, micrograms per liter Agree Total 1332-21-4 Asbestos ug/l
34226 Inorganics, Minor, Non-metals Asbestos (fibrous), water, filtered, micrograms per liter Agree Dissolved 1332-21-4 Asbestos ug/l
34227 Inorganics, Minor, Non-metals Asbestos (fibrous), suspended sediment, micrograms per liter Agree Suspended 1332-21-4 Asbestos ug/l
34228 Inorganics, Minor, Non-metals Asbestos (fibrous), bed sediment, dry weight, micrograms per kilogram Agree Dry Bed Sediment 1332-21-4 Asbestos ug/kg
34325 Inorganics, Minor, Non-metals Cyanide, suspended sediment, micrograms per liter Not agree Suspended 57-12-5 Cyanide ug/l
34795 Inorganics, Minor, Non-metals Antimony, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Bed Sediment 7440-36-0 Antimony mg/kg
34796 Inorganics, Minor, Non-metals Antimony, bed sediment smaller than 177 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram Not checked Dry < 177 microns Bed Sediment 7440-36-0 Antimony mg/kg
34797 Inorganics, Minor, Non-metals Antimony, bed sediment smaller than 62.5 microns, dry sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Bed Sediment 7440-36-0 Antimony mg/kg
34798 Inorganics, Minor, Non-metals Antimony, suspended sediment smaller than 62.5 microns, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Suspended 7440-36-0 Antimony mg/kg
34799 Inorganics, Minor, Non-metals Antimony, suspended sediment larger than 62.5 microns, total digestion, dry weight, milligrams per kilogram Not checked Dry > 62.5 microns Suspended 7440-36-0 Antimony mg/kg
34800 Inorganics, Minor, Non-metals Arsenic, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Bed Sediment 7440-38-2 Arsenic mg/kg
34801 Inorganics, Minor, Non-metals Arsenic, bed sediment smaller than 177 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram Not checked Dry < 177 microns Bed Sediment 7440-38-2 Arsenic mg/kg
34802 Inorganics, Minor, Non-metals Arsenic, bed sediment smaller than 62.5 microns, dry sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Bed Sediment 7440-38-2 Arsenic mg/kg
34803 Inorganics, Minor, Non-metals Arsenic, suspended sediment smaller than 62.5 microns, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Suspended 7440-38-2 Arsenic mg/kg
34804 Inorganics, Minor, Non-metals Arsenic, suspended sediment larger than 62.5 microns, total digestion, dry weight, milligrams per kilogram Not checked Dry > 62.5 microns Suspended 7440-38-2 Arsenic mg/kg
34820 Inorganics, Minor, Non-metals Boron, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Bed Sediment 7440-42-8 Boron mg/kg
34821 Inorganics, Minor, Non-metals Boron, bed sediment smaller than 177 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram Not checked Dry < 177 microns Bed Sediment 7440-42-8 Boron mg/kg
34822 Inorganics, Minor, Non-metals Boron, bed sediment smaller than 62.5 microns, dry sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Bed Sediment 7440-42-8 Boron mg/kg
34823 Inorganics, Minor, Non-metals Boron, suspended sediment smaller than 62.5 microns, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Suspended 7440-42-8 Boron mg/kg
34824 Inorganics, Minor, Non-metals Boron, suspended sediment larger than 62.5 microns, total digestion, dry weight, milligrams per kilogram Not checked Dry > 62.5 microns Suspended 7440-42-8 Boron mg/kg
34865 Inorganics, Minor, Non-metals Germanium, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Bed Sediment 7440-56-4 Germanium mg/kg
34866 Inorganics, Minor, Non-metals Germanium, bed sediment smaller than 177 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram Not checked Dry < 177 microns Bed Sediment 7440-56-4 Germanium mg/kg
34867 Inorganics, Minor, Non-metals Germanium, bed sediment smaller than 62.5 microns, dry sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Bed Sediment 7440-56-4 Germanium mg/kg
34868 Inorganics, Minor, Non-metals Germanium, suspended sediment smaller than 62.5 microns, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Suspended 7440-56-4 Germanium mg/kg
34869 Inorganics, Minor, Non-metals Germanium, suspended sediment larger than 62.5 microns, total digestion, dry weight, milligrams per kilogram Not checked Dry > 62.5 microns Suspended 7440-56-4 Germanium mg/kg
34950 Inorganics, Minor, Non-metals Selenium, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Bed Sediment 7782-49-2 Selenium mg/kg
34951 Inorganics, Minor, Non-metals Selenium, bed sediment smaller than 177 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram Not checked Dry < 177 microns Bed Sediment 7782-49-2 Selenium mg/kg
34952 Inorganics, Minor, Non-metals Selenium, bed sediment smaller than 62.5 microns, dry sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Bed Sediment 7782-49-2 Selenium mg/kg
34953 Inorganics, Minor, Non-metals Selenium, suspended sediment smaller than 62.5 microns, total digestion, dry weight, milligrams per kilogram Not checked Dry < 62.5 microns Suspended 7782-49-2 Selenium mg/kg
34954 Inorganics, Minor, Non-metals Selenium, suspended sediment larger than 62.5 microns, total digestion, dry weight, milligrams per kilogram Not checked Dry > 62.5 microns Suspended 7782-49-2 Selenium mg/kg
35034 Inorganics, Minor, Non-metals Germanium, suspended sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Suspended 7440-56-4 Germanium mg/kg
49239 Inorganics, Minor, Non-metals Boron, biota, tissue, recoverable, dry weight, milligrams per kilogram Agree Dry Recoverable 7440-42-8 Boron mg/kg
49246 Inorganics, Minor, Non-metals Antimony, biota, tissue, recoverable, dry weight, milligrams per kilogram Agree Dry Recoverable 7440-36-0 Antimony mg/kg
49247 Inorganics, Minor, Non-metals Arsenic, biota, tissue, recoverable, dry weight, milligrams per kilogram Agree Dry Recoverable 7440-38-2 Arsenic mg/kg
49254 Inorganics, Minor, Non-metals Selenium, biota, tissue, recoverable, dry weight, milligrams per kilogram Agree Dry Recoverable 7782-49-2 Selenium mg/kg
50316 Inorganics, Minor, Non-metals Arsenic acid, water, filtered, micrograms per liter Agree Dissolved 7778-39-4 Arsenic acid ug/l
50585 Inorganics, Minor, Non-metals Tellurium, water, filtered, micrograms per liter Agree Dissolved 13494-80-9 Tellurium ug/l
51152 Inorganics, Minor, Non-metals Antimony, soil, field, x-ray fluorescence screening method, parts per million Not checked 7440-36-0 Antimony ppm
51156 Inorganics, Minor, Non-metals Selenium, soil, field, x-ray fluorescence screening method, parts per million Not checked 7782-49-2 Selenium ppm
51157 Inorganics, Minor, Non-metals Arsenic, soil, field, x-ray fluorescence screening method, parts per million Not checked 7440-38-2 Arsenic ppm
51181 Inorganics, Minor, Non-metals Tellurium, soil, field, x-ray fluorescence screening method, parts per million Not checked 13494-80-9 Tellurium ppm
51184 Inorganics, Minor, Non-metals Inorganic antimony(III), water, filtered, micrograms per liter Not checked Dissolved ug/l
51188 Inorganics, Minor, Non-metals Helium, water, dissolved, mole percent of dissolved gases Not checked Dissolved 7440-59-7 Helium %
51190 Inorganics, Minor, Non-metals Argon, water, dissolved, mole percent of dissolved gases Not checked Dissolved 7440-37-1 Argon %
51280 Inorganics, Minor, Non-metals Cyanide, weak acid, dissociable, water, unfiltered, milligrams per liter Not checked Total mg/l
51284 Inorganics, Minor, Non-metals Dissolved organic selenium, water, filtered (0.45 micrometer filter), micrograms per liter as selenium Not checked Dissolved ug/l
51357 Inorganics, Minor, Non-metals Antimony, bed sediment smaller than 150 um, dry sieved, lab, total digestion, dry weight, milligrams per kilogram Not checked Dry <150 um Bed Sediment 7440-36-0 mg/kg
51358 Inorganics, Minor, Non-metals Arsenic, bed sediment smaller than 150 um, dry sieved, lab, total digestion, dry weight, milligrams per kilogram Not checked Dry <150 um Bed Sediment 7440-38-2 mg/kg
51389 Inorganics, Minor, Non-metals Selenium, bed sediment smaller than 150 um, dry sieved, lab, total digestion, dry weight, milligrams per kilogram Not checked Dry <150 um Bed Sediment 7782-49-2 mg/kg
52139 Inorganics, Minor, Non-metals Total cyanide, water, unfiltered, milligrams per liter Not checked 57-12-5 mg/l
52148 Inorganics, Minor, Non-metals Perchlorate, soil, recoverable, dry weight, micrograms per kilogram Not checked Dry Recoverable 14797-73-0 ug/kg
52275 Inorganics, Minor, Non-metals Boron, water, unfiltered, micrograms per liter Not checked Total 7440-42-8 ug/l
52373 Inorganics, Minor, Non-metals Sulfur, bed sediment smaller than 250 microns, dry sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 2 mm Bed Sediment 7704-34-9 %
52374 Inorganics, Minor, Non-metals Tellurium, bed sediment smaller than 2 millimeters, dry sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry < 2 mm Bed Sediment 13494-80-9 mg/kg
52375 Inorganics, Minor, Non-metals Tellurium, bed sediment smaller than 250 microns, dry sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry < 2 mm Bed Sediment 13494-80-9 mg/kg
52376 Inorganics, Minor, Non-metals Tellurium, bed sediment smaller than 62.5 microns, dry sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry < 2 mm Bed Sediment 13494-80-9 mg/kg
52509 Inorganics, Minor, Non-metals Silica, bed sediment, recoverable, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 7631-86-9 mg/kg
52514 Inorganics, Minor, Non-metals Boron, bed sediment, recoverable, dry weight, micrograms per kilogram Not checked Dry Bed Sediment 7440-42-8 ug/kg
52523 Inorganics, Minor, Non-metals Silicon, bed sediment, recoverable, dry weight, micrograms per kilogram Not checked Dry Bed Sediment 7631-86-9 ug/kg
52531 Inorganics, Minor, Non-metals Arsenite, water, unfiltered, micrograms per liter as arsenic Not checked Total 15502-74-6 ug/L as As
52532 Inorganics, Minor, Non-metals Arsenate, water, unfiltered, micrograms per liter as arsenic Not checked Total 15584-04-0 ug/L as As
52625 Inorganics, Minor, Non-metals Cyanide, available, water, unfiltered, micrograms per liter Not checked Total ug/l
52672 Inorganics, Minor, Non-metals Reduced sulfur, solids, total digestion, dry weight, millimoles per kilogram Not checked Dry mmol/kg
52684 Inorganics, Minor, Non-metals Sulfide, water, filtered, micromoles per liter Not checked Dissolved 18496-25-8 umol/L
52771 Inorganics, Minor, Non-metals Reduced sulfur, solids smaller than 2 mm, total digestion, dry weight, millimoles per kilogram Not checked Dry < 2 mm mmol/kg
52772 Inorganics, Minor, Non-metals Reduced sulfur, solids smaller than 0.063 mm, total digestion, dry weight, millimoles per kilogram Not checked Dry <0.063 mm mmol/kg
52773 Inorganics, Minor, Non-metals Antimony, water, filtered, milligrams per liter Not checked Dissolved 7440-36-0 mg/l
52774 Inorganics, Minor, Non-metals Arsenic, water, filtered, milligrams per liter Not checked Dissolved 7440-38-2 mg/l
52789 Inorganics, Minor, Non-metals Boron, bed sediment smaller than 62.5 microns, wet sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry <62.5 um Bed Sediment 7440-42-8 mg/kg
52807 Inorganics, Minor, Non-metals Tellurium, bed sediment smaller than 62.5 microns, wet sieved, laboratory, total digestion, dry weight, milligrams per kilogram Not checked Dry <62.5 um Bed Sediment 13494-80-9 mg/kg
53446 Inorganics, Minor, Non-metals Sulfur, suspended sediment smaller than 177 um, dry weight, percent Not checked Dry <177 um Suspended 7704-34-9 %
53639 Inorganics, Minor, Non-metals Sulfur, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, percent Not checked Dry < 2 mm Bed Sediment 7704-34-9 %
53640 Inorganics, Minor, Non-metals Tellurium, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, milligrams per kilogram Not checked Dry < 2 mm Bed Sediment 13494-80-9 mg/kg
53670 Inorganics, Minor, Non-metals Tellurium, bed sediment, recoverable, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 13494-80-9 mg/kg
53676 Inorganics, Minor, Non-metals Sulfur, bed sediment, 0.25 M hydroxylamine hydrochloride acid extracted, recoverable, dry weight, percent Not checked Dry Bed Sediment 7704-34-9 %
53681 Inorganics, Minor, Non-metals Boron, bed sediment, 0.25 M hydroxylamine hydrochloride acid extracted, recoverable, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 7440-42-8 mg/kg
53716 Inorganics, Minor, Non-metals Tellurium, bed sediment, 0.25 M hydroxylamine hydrochloride acid extracted, recoverable, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 13494-80-9 mg/kg
53942 Inorganics, Minor, Non-metals Selenocyanate, water, filtered, recoverable, micrograms per liter Not checked Dissolved 5749-48-4 ug/l
53943 Inorganics, Minor, Non-metals Methylseleninic acid, water, filtered, recoverable, micrograms per liter Not checked Dissolved 28274-57-9 ug/l
53944 Inorganics, Minor, Non-metals Selenomethionine, water, filtered, recoverable, micrograms per liter Not checked Dissolved 1464-42-2 ug/l
54153 Inorganics, Minor, Non-metals Carbon dioxide, soil gas, in situ, sensor reading uncorrected for temperature and pressure, percent of soil gas Not checked 124-38-9 % by vol
54156 Inorganics, Minor, Non-metals Argon, soil gas, uncorrected for temperature and pressure, percent of soil gas Not checked 7440-37-1 % by vol
54158 Inorganics, Minor, Non-metals Carbon dioxide, soil gas, in situ, sensor reading corrected for temperature and pressure, percent of soil gas Not checked 124-38-9 % by vol
54159 Inorganics, Minor, Non-metals Carbon dioxide efflux, soil gas, micromoles per square meter per second Not checked 124-38-9 umol/m2/s
54340 Inorganics, Minor, Non-metals Arsenic, water, filtered (0.1 micron filter), micrograms per liter Not checked < 0.1 um Dissolved 7440-38-2 ug/l
54562 Inorganics, Minor, Non-metals Helium, air, recoverable, mole percent Not checked Recoverable 7440-59-7 %
54564 Inorganics, Minor, Non-metals Argon, air, recoverable, mole percent Not checked Recoverable 7440-37-1 %
54828 Inorganics, Minor, Non-metals Carbon dioxide, air, dry, recoverable, mole percent Not checked Recoverable 124-38-9 %
54829 Inorganics, Minor, Non-metals Carbon dioxide, air, recoverable, percent by volume Not checked Recoverable 124-38-9 % by vol
61038 Inorganics, Minor, Non-metals Helium, water, unfiltered, cubic centimeters per gram at standard temperature and pressure Agree Total 7440-59-7 Helium cm3/g STP
61039 Inorganics, Minor, Non-metals Helium error, water, unfiltered, cubic centimeters per gram at standard temperature and pressure Agree Standard Deviation Total 7440-59-7 Helium cm3/g STP
61046 Inorganics, Minor, Non-metals Neon, water, unfiltered, cubic centimeters per gram at standard temperature and pressure Agree Total 7440-01-9 Neon cm3/g STP
61047 Inorganics, Minor, Non-metals Neon error, water, unfiltered, cubic centimeters per gram at standard temperature and pressure Agree Standard Deviation Total 7440-01-9 Neon cm3/g STP
61050 Inorganics, Minor, Non-metals Selenium, bed sediment smaller than 2 millimeters, total digestion, dry weight, milligrams per kilogram Not checked Dry < 2 mm Bed Sediment 7782-49-2 Selenium mg/kg
61209 Inorganics, Minor, Non-metals Perchlorate, water, unfiltered, micrograms per liter Agree Total 14797-73-0 Perchlorate ug/l
62171 Inorganics, Minor, Non-metals Perchlorate, water, unfiltered, recoverable, milligrams per liter USGS use and no use by EPA Recoverable 14797-73-0 Perchlorate mg/l
62452 Inorganics, Minor, Non-metals Arsenite, water, filtered, micrograms per liter as arsenic USGS use and no use by EPA Dissolved 15502-74-6 Arsenite ug/L as As
62453 Inorganics, Minor, Non-metals Arsenate, water, filtered, micrograms per liter as arsenic USGS use and no use by EPA Dissolved 15584-04-0 Arsenate (AsO43-) ug/L as As
62912 Inorganics, Minor, Non-metals Tellurium, bed sediment smaller than 177 microns, wet sieved, total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry < 177 microns Bed Sediment 13494-80-9 Tellurium mg/kg
62984 Inorganics, Minor, Non-metals Arsenic, water, filtered (ultrafiltration, 10,000 Dalton molecular weight membrane), micrograms per liter USGS use and no use by EPA Dissolved 7440-38-2 Arsenic ug/l
63149 Inorganics, Minor, Non-metals Sulfur hexafluoride, water, unfiltered, recoverable, femtograms per kilogram USGS use and no use by EPA Recoverable 2551-62-4 Sulfur hexafluoride fg/kg
63692 Inorganics, Minor, Non-metals Perchlorate, solids, recoverable, dry weight, micrograms per kilogram USGS use and no use by EPA Dry Recoverable 14797-73-0 Perchlorate ug/kg
63790 Inorganics, Minor, Non-metals Perchlorate, water, filtered, micrograms per liter USGS use and no use by EPA Dissolved 14797-73-0 Perchlorate ug/l
63791 Inorganics, Minor, Non-metals Perchlorate, biota, tissue, recoverable, dry weight, micrograms per kilogram USGS use and no use by EPA Dry Recoverable 14797-73-0 Perchlorate ug/kg
63793 Inorganics, Minor, Non-metals Antimony, biota, tissue, recoverable, wet weight, milligrams per kilogram USGS use and no use by EPA Wet Recoverable 7440-36-0 Antimony mg/kg
63794 Inorganics, Minor, Non-metals Arsenic, biota, tissue, recoverable, wet weight, milligrams per kilogram USGS use and no use by EPA Wet Recoverable 7440-38-2 Arsenic mg/kg
63804 Inorganics, Minor, Non-metals Selenium, biota, tissue, recoverable, wet weight, milligrams per kilogram USGS use and no use by EPA Wet Recoverable 7782-49-2 Selenium mg/kg
64184 Inorganics, Minor, Non-metals Helium, water, unfiltered, nanomoles per liter USGS use and no use by EPA Total 7440-59-7 Helium nmol/L
64186 Inorganics, Minor, Non-metals Neon, water, unfiltered, nanomoles per liter USGS use and no use by EPA Total 7440-01-9 Neon nmol/L
64847 Inorganics, Minor, Non-metals Arsenic, bed sediment, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Bed Sediment 7440-38-2 Arsenic mg/kg
64848 Inorganics, Minor, Non-metals Selenium, bed sediment, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Bed Sediment 7782-49-2 Selenium mg/kg
64903 Inorganics, Minor, Non-metals Iodide, water, unfiltered, milligrams per liter USGS use and no use by EPA Total 20461-54-5 Iodide mg/l
65212 Inorganics, Minor, Non-metals Antimony, bed sediment, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Bed Sediment 7440-36-0 Antimony mg/kg
66694 Inorganics, Minor, Non-metals Perchlorate, bed sediment smaller than 2 millimeters, wet sieved (native water), field, recoverable, dry weight, micrograms per kilogram USGS use and no use by EPA Dry < 2 mm Bed Sediment 14797-73-0 Perchlorate ug/kg
66703 Inorganics, Minor, Non-metals Cyanide, free, water, unfiltered, milligrams per liter USGS use and no use by EPA Total mg/l
66704 Inorganics, Minor, Non-metals Cyanide, free, water, filtered, milligrams per liter USGS use and no use by EPA Dissolved mg/l
66705 Inorganics, Minor, Non-metals Cyanide, amenable to chlorination, water, unfiltered, milligrams per liter USGS use and no use by EPA Total Cyanides amenable to chlorination (HCN & CN) mg/l
66706 Inorganics, Minor, Non-metals Cyanide, amenable to chlorination, water, filtered, milligrams per liter USGS use and no use by EPA Dissolved Cyanides amenable to chlorination (HCN & CN) mg/l
67315 Inorganics, Minor, Non-metals Cyanide, available, water, unfiltered, milligrams per liter USGS use and no use by EPA Total mg/l
67316 Inorganics, Minor, Non-metals Cyanide, available, water, filtered, milligrams per liter USGS use and no use by EPA Dissolved mg/l
67325 Inorganics, Minor, Non-metals Selenate, water, filtered, micrograms per liter as selenium USGS use and no use by EPA Dissolved 14124-68-6 ug/l
67326 Inorganics, Minor, Non-metals Selenite, water, filtered, micrograms per liter as selenium USGS use and no use by EPA Dissolved 14124-67-5 ug/l
67875 Inorganics, Minor, Non-metals Antimony, solids, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7440-36-0 mg/kg
67876 Inorganics, Minor, Non-metals Arsenic, solids, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7440-38-2 mg/kg
67900 Inorganics, Minor, Non-metals Antimony, solids, total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Total 7440-36-0 mg/kg
67901 Inorganics, Minor, Non-metals Arsenic, solids, total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Total 7440-38-2 mg/kg
68074 Inorganics, Minor, Non-metals Asbestos, solids, volume percent USGS use and no use by EPA Dry 1332-21-4 %
68786 Inorganics, Minor, Non-metals Antimony, bed sediment, recoverable, wet weight, micrograms per kilogram USGS use and no use by EPA Wet Bed Sediment 7440-36-0 ug/kg
68787 Inorganics, Minor, Non-metals Arsenic, bed sediment, recoverable, dry weight, micrograms per kilogram USGS use and no use by EPA Dry Bed Sediment 7440-38-2 ug/kg
68797 Inorganics, Minor, Non-metals Selenium, bed sediment, recoverable, dry weight, micrograms per kilogram USGS use and no use by EPA Dry Bed Sediment 7782-49-2 ug/kg
69901 Inorganics, Minor, Non-metals Selenium, speciation unknown, water, filtered, recoverable, micrograms per liter USGS use and no use by EPA Recoverable ug/l
71865 Inorganics, Minor, Non-metals Iodide, water, filtered, milligrams per liter Not checked Dissolved 20461-54-5 Iodide mg/l
71866 Inorganics, Minor, Non-metals Iodine, water, unfiltered, milligrams per liter Not checked Total 7553-56-2 Iodine mg/l
71871 Inorganics, Minor, Non-metals Bromine, water, unfiltered, milligrams per liter Not checked Total 7726-95-6 Bromine mg/l
82041 Inorganics, Minor, Non-metals Helium, water, dissolved, micrograms per liter Agree Dissolved 7440-59-7 Helium ug/l
82043 Inorganics, Minor, Non-metals Argon, water, dissolved, milligrams per liter Agree Dissolved 7440-37-1 Argon mg/l
82314 Inorganics, Minor, Non-metals Helium, bed sediment, dry weight, micrograms per kilogram Agree Dry Bed Sediment 7440-59-7 Helium ug/kg
82315 Inorganics, Minor, Non-metals Helium, suspended sediment, dry weight, micrograms per kilogram Not agree Dry Suspended 7440-59-7 Helium ug/kg
82316 Inorganics, Minor, Non-metals Helium, water, unfiltered, dry weight, micrograms per kilogram Not checked Dry Total 7440-59-7 Helium ug/kg
82504 Inorganics, Minor, Non-metals Arsenic, soluble, dry atmospheric deposition, micrograms per kilogram Agree 7440-38-2 Arsenic ug/kg
82505 Inorganics, Minor, Non-metals Arsenic, insoluble, dry atmospheric deposition, micrograms per kilogram Agree 7440-38-2 Arsenic ug/kg
82506 Inorganics, Minor, Non-metals Arsenic, total, dry atmospheric deposition, micrograms per kilogram Agree Total 7440-38-2 Arsenic ug/kg
82917 Inorganics, Minor, Non-metals Arsenic, wet atmospheric deposition, filtered, micrograms per liter Agree Dissolved 7440-38-2 Arsenic ug/l
82918 Inorganics, Minor, Non-metals Arsenic, wet atmospheric deposition, filtered, micrograms per square meter Agree Dissolved 7440-38-2 Arsenic ug/m2
82919 Inorganics, Minor, Non-metals Arsenic, wet atmospheric deposition, suspended, micrograms per liter Agree Suspended 7440-38-2 Arsenic ug/l
82920 Inorganics, Minor, Non-metals Arsenic, wet atmospheric deposition, suspended, micrograms per square meter Agree Suspended 7440-38-2 Arsenic ug/m2
82921 Inorganics, Minor, Non-metals Arsenic, wet atmospheric deposition, unfiltered, micrograms per liter Agree Total 7440-38-2 Arsenic ug/l
82922 Inorganics, Minor, Non-metals Arsenic, wet atmospheric deposition, unfiltered, micrograms per square meter Agree Total 7440-38-2 Arsenic ug/m2
83132 Inorganics, Minor, Non-metals Selenium, wet atmospheric deposition, filtered, micrograms per liter Agree Dissolved 7782-49-2 Selenium ug/l
83133 Inorganics, Minor, Non-metals Selenium, wet atmospheric deposition, filtered, micrograms per square meter Agree Dissolved 7782-49-2 Selenium ug/m2
83134 Inorganics, Minor, Non-metals Selenium, wet atmospheric deposition, suspended, micrograms per liter Agree Suspended 7782-49-2 Selenium ug/l
83135 Inorganics, Minor, Non-metals Selenium, wet atmospheric deposition, suspended, micrograms per square meter Agree Suspended 7782-49-2 Selenium ug/m2
83136 Inorganics, Minor, Non-metals Selenium, wet atmospheric deposition, unfiltered, micrograms per liter Agree Total 7782-49-2 Selenium ug/l
83137 Inorganics, Minor, Non-metals Selenium, wet atmospheric deposition, unfiltered, micrograms per square meter Agree Total 7782-49-2 Selenium ug/m2
83199 Inorganics, Minor, Non-metals Arsenic, bulk atmospheric deposition, filtered, micrograms per liter Agree Dissolved 7440-38-2 Arsenic ug/l
83200 Inorganics, Minor, Non-metals Arsenic, bulk atmospheric deposition, filtered, micrograms per square meter Agree Dissolved 7440-38-2 Arsenic ug/m2
83201 Inorganics, Minor, Non-metals Arsenic, bulk atmospheric deposition, suspended, micrograms per liter Agree Suspended 7440-38-2 Arsenic ug/l
83202 Inorganics, Minor, Non-metals Arsenic, bulk atmospheric deposition, suspended, micrograms per square meter Agree Suspended 7440-38-2 Arsenic ug/m2
83203 Inorganics, Minor, Non-metals Arsenic, bulk atmospheric deposition, unfiltered, micrograms per liter Agree Total 7440-38-2 Arsenic ug/l
83204 Inorganics, Minor, Non-metals Arsenic, bulk atmospheric deposition, unfiltered, micrograms per square meter Agree Total 7440-38-2 Arsenic ug/m2
83414 Inorganics, Minor, Non-metals Selenium, bulk atmospheric deposition, filtered, micrograms per liter Agree Dissolved 7782-49-2 Selenium ug/l
83415 Inorganics, Minor, Non-metals Selenium, bulk atmospheric deposition, filtered, micrograms per square meter Agree Dissolved 7782-49-2 Selenium ug/m2
83416 Inorganics, Minor, Non-metals Selenium, bulk atmospheric deposition, suspended, micrograms per liter Agree Suspended 7782-49-2 Selenium ug/l
83417 Inorganics, Minor, Non-metals Selenium, bulk atmospheric deposition, suspended, micrograms per square meter Agree Suspended 7782-49-2 Selenium ug/m2
83418 Inorganics, Minor, Non-metals Selenium, bulk atmospheric deposition, unfiltered, micrograms per liter Agree Total 7782-49-2 Selenium ug/l
83419 Inorganics, Minor, Non-metals Selenium, bulk atmospheric deposition, unfiltered, micrograms per square meter Agree Total 7782-49-2 Selenium ug/m2
85542 Inorganics, Minor, Non-metals Argon, water, dissolved, volume percent of dissolved gases Agree Dissolved 7440-37-1 Argon %
85563 Inorganics, Minor, Non-metals Argon, water, dissolved, cubic centimeters per gram at standard temperature and pressure USGS use and no use by EPA Dissolved 7440-37-1 Argon cm3/g STP
85564 Inorganics, Minor, Non-metals Argon error, water, unfiltered, cubic centimeters per gram at standard temperature and pressure Not agree Standard Deviation Total 7440-37-1 Argon cm3/g STP
85565 Inorganics, Minor, Non-metals Krypton, water, dissolved, cubic centimeters per gram at standard temperature and pressure Not agree Dissolved 7439-90-9 Krypton cm3/g STP
85566 Inorganics, Minor, Non-metals Krypton error, water, unfiltered, cubic centimeters per gram at standard temperature and pressure Not agree Standard Deviation Total 7439-90-9 Krypton cm3/g STP
85567 Inorganics, Minor, Non-metals Xenon, water, dissolved, cubic centimeters per gram at standard temperature and pressure Not agree Dissolved 7440-63-3 Xenon cm3/g STP
85568 Inorganics, Minor, Non-metals Xenon error, water, unfiltered, cubic centimeters per gram at standard temperature and pressure Not agree Standard Deviation Total 7440-63-3 Xenon cm3/g STP
85575 Inorganics, Minor, Non-metals Helium, water, dissolved, nanomoles per kilogram Not checked Dissolved 7440-59-7 Helium nmol/kg
85577 Inorganics, Minor, Non-metals Neon, water, dissolved, nanomoles per kilogram Not checked Dissolved 7440-01-9 Neon nmol/kg
85589 Inorganics, Minor, Non-metals Cyanide, weak acid, dissociable, water, filtered, milligrams per liter Not checked Dissolved 57-12-5 mg/l
91023 Inorganics, Minor, Non-metals Boron, water, filtered, semi-quantitative, micrograms per liter USGS use and no use by EPA Dissolved 7440-42-8 Boron ug/l
91081 Inorganics, Minor, Non-metals Acid volatile sulfide plus pyritic sulfide, solids, dry weight, milligram per kilogram USGS use and no use by EPA Dry mg/kg
91700 Inorganics, Minor, Non-metals Arsenic, solids, 10% nitric acid extracted, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7440-38-2 Arsenic mg/kg
99033 Inorganics, Minor, Non-metals Inorganic arsenic, water, filtered (0.45 micron filter), micrograms per liter as arsenic USGS use and no use by EPA Dissolved ug/l
99034 Inorganics, Minor, Non-metals Inorganic arsenic(III), water, filtered (0.45 micron filter), micrograms per liter as arsenic USGS use and no use by EPA Dissolved 22541-54-4 ug/l
99320 Inorganics, Minor, Non-metals Chlorate, disinfection byproduct, water, unfiltered, EPA method 300.0, micrograms per liter USGS use and no use by EPA Total 14866-68-3 Chlorate ug/l
99782 Inorganics, Minor, Non-metals Boron, water, filtered, unpreserved, recoverable, micrograms per liter USGS use and no use by EPA Dissolved 7440-42-8 Boron ug/l
99896 Inorganics, Minor, Non-metals Cyanide, water, unfiltered, recoverable, milligrams per liter USGS use and no use by EPA 57-12-5 Cyanide mg/l
99897 Inorganics, Minor, Non-metals Antimony, water, unfiltered, recoverable, micrograms per liter USGS use and no use by EPA 7440-36-0 Antimony ug/l