Parameter Groups
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# National Water Information System
# 2024/12/22
#
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# Date Retrieved: USGS Water Data for the Nation Help System
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parm_cd group parm_nm epa_equivalence result_statistical_basis result_time_basis result_weight_basis result_particle_size_basis result_sample_fraction result_temperature_basis CASRN SRSName parm_unit
5s 25s 131s 26s 0s 0s 3s 14s 12s 0s 9s 29s 10s
00910 Inorganics, Major, Metals Calcium, water, unfiltered, milligrams per liter as calcium carbonate Not checked Total 7440-70-2 Calcium mg/l CaCO3
00915 Inorganics, Major, Metals Calcium, water, filtered, milligrams per liter Agree Dissolved 7440-70-2 Calcium mg/l
00916 Inorganics, Major, Metals Calcium, water, unfiltered, recoverable, milligrams per liter Not checked Recoverable 7440-70-2 Calcium mg/l
00917 Inorganics, Major, Metals Calcium, bed sediment, recoverable, dry weight, milligrams per kilogram Agree Dry Bed Sediment 7440-70-2 Calcium mg/kg
00918 Inorganics, Major, Metals Calcium, water, unfiltered, recoverable, milligrams per liter Agree Recoverable 7440-70-2 Calcium mg/l
00920 Inorganics, Major, Metals Magnesium, water, unfiltered, milligrams per liter as calcium carbonate Not checked Total 7439-95-4 Magnesium mg/l CaCO3
00921 Inorganics, Major, Metals Magnesium, water, unfiltered, recoverable, milligrams per liter Agree Recoverable 7439-95-4 Magnesium mg/l
00923 Inorganics, Major, Metals Sodium, water, unfiltered, recoverable, milligrams per liter Agree Recoverable 7440-23-5 Sodium mg/l
00924 Inorganics, Major, Metals Magnesium, bed sediment, recoverable, dry weight, milligrams per kilogram Agree Dry Bed Sediment 7439-95-4 Magnesium mg/kg
00925 Inorganics, Major, Metals Magnesium, water, filtered, milligrams per liter Agree Dissolved 7439-95-4 Magnesium mg/l
00926 Inorganics, Major, Metals Magnesium, suspended sediment, total, milligrams per liter Agree Suspended 7439-95-4 Magnesium mg/l
00927 Inorganics, Major, Metals Magnesium, water, unfiltered, recoverable, milligrams per liter Not checked Recoverable 7439-95-4 Magnesium mg/l
00929 Inorganics, Major, Metals Sodium, water, unfiltered, recoverable, milligrams per liter Not checked Recoverable 7440-23-5 Sodium mg/l
00930 Inorganics, Major, Metals Sodium, water, filtered, milligrams per liter Agree Dissolved 7440-23-5 Sodium mg/l
00931 Inorganics, Major, Metals Sodium adsorption ratio (SAR), water, number Agree Sodium adsorption ratio None
00932 Inorganics, Major, Metals Sodium fraction of cations, water, percent in equivalents of major cations Agree Sodium, percent total cations %
00933 Inorganics, Major, Metals Sodium plus potassium, water, filtered, milligrams per liter as sodium Not checked Dissolved Sodium plus potassium mg/l as Na
00934 Inorganics, Major, Metals Sodium, bed sediment, recoverable, dry weight, milligrams per kilogram Agree Dry Bed Sediment 7440-23-5 Sodium mg/kg
00935 Inorganics, Major, Metals Potassium, water, filtered, milligrams per liter Agree Dissolved 7440-09-7 Potassium mg/l
00937 Inorganics, Major, Metals Potassium, water, unfiltered, recoverable, milligrams per liter Not checked Recoverable 7440-09-7 Potassium mg/l
00938 Inorganics, Major, Metals Potassium, bed sediment, recoverable, dry weight, milligrams per kilogram Agree Dry Bed Sediment 7440-09-7 Potassium mg/kg
00939 Inorganics, Major, Metals Potassium, water, unfiltered, recoverable, milligrams per liter Agree Recoverable 7440-09-7 Potassium mg/l
01430 Inorganics, Major, Metals Calcium, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry < 2 mm Bed Sediment 7440-70-2 Calcium mg/kg
01433 Inorganics, Major, Metals Magnesium, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry < 2 mm Bed Sediment 7439-95-4 Magnesium mg/kg
01435 Inorganics, Major, Metals Potassium, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry < 2 mm Bed Sediment 7440-09-7 Potassium mg/kg
01437 Inorganics, Major, Metals Sodium, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry < 2 mm Bed Sediment 7440-23-5 Sodium mg/kg
01474 Inorganics, Major, Metals Sodium, bed sediment, total digestion, dry weight, percent Not checked Dry Bed Sediment 7440-23-5 Sodium %
01475 Inorganics, Major, Metals Potassium, bed sediment, total digestion, dry weight, percent Not checked Dry Bed Sediment 7440-09-7 Potassium %
01476 Inorganics, Major, Metals Calcium, bed sediment, total digestion, dry weight, percent Not checked Dry Bed Sediment 7440-70-2 Calcium %
01477 Inorganics, Major, Metals Magnesium, bed sediment, total digestion, dry weight, percent Not checked Dry Bed Sediment 7439-95-4 Magnesium %
03932 Inorganics, Major, Metals Magnesium, bed sediment smaller than 62.5 microns, wet sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 0.0625 Bed Sediment 7439-95-4 Magnesium %
03935 Inorganics, Major, Metals Potassium, bed sediment smaller than 62.5 microns, wet sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 0.0625 Bed Sediment 7440-09-7 Potassium %
03943 Inorganics, Major, Metals Sodium, bed sediment smaller than 62.5 microns, wet sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 0.0625 Bed Sediment 7440-23-5 Sodium %
03954 Inorganics, Major, Metals Calcium, bed sediment smaller than 62.5 microns, wet sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 0.0625 Bed Sediment 7440-70-2 Calcium %
04050 Inorganics, Major, Metals Calcium, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, percent Not checked Dry < 2 mm Bed Sediment 7440-70-2 Calcium %
29828 Inorganics, Major, Metals Calcium, soil, recoverable, dry weight, milligrams per kilogram Agree Dry Recoverable 7440-70-2 Calcium mg/kg
29838 Inorganics, Major, Metals Magnesium, soil, recoverable, dry weight, milligrams per kilogram Agree Dry Recoverable 7439-95-4 Magnesium mg/kg
29851 Inorganics, Major, Metals Sodium, soil, recoverable, dry weight, milligrams per kilogram Agree Dry Recoverable 7440-23-5 Sodium mg/kg
30239 Inorganics, Major, Metals Calcium, bed sediment, dry weight, percent Agree Dry Bed Sediment 7440-70-2 Calcium %
30240 Inorganics, Major, Metals Calcium, suspended sediment, total digestion, dry weight, percent Not checked Dry Suspended 7440-70-2 Calcium %
30276 Inorganics, Major, Metals Magnesium, bed sediment, dry weight, percent Agree Dry Bed Sediment 7439-95-4 Magnesium %
30277 Inorganics, Major, Metals Magnesium, suspended sediment, total digestion, dry weight, percent Not checked Dry Suspended 7439-95-4 Magnesium %
30293 Inorganics, Major, Metals Potassium, bed sediment, dry weight, percent Agree Dry Bed Sediment 7440-09-7 Potassium %
30294 Inorganics, Major, Metals Potassium, suspended sediment, total digestion, dry weight, percent Not checked Dry Suspended 7440-09-7 Potassium %
30303 Inorganics, Major, Metals Sodium, bed sediment, dry weight, percent Agree Dry Bed Sediment 7440-23-5 Sodium %
30304 Inorganics, Major, Metals Sodium, suspended sediment, total digestion, dry weight, percent Not checked Dry Suspended 7440-23-5 Sodium %
34830 Inorganics, Major, Metals Calcium, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, percent Not checked Dry < 62.5 microns Bed Sediment 7440-70-2 Calcium %
34831 Inorganics, Major, Metals Calcium, bed sediment smaller than 177 microns, wet sieved, field, total digestion, dry weight, percent Not checked Dry < 177 microns Bed Sediment 7440-70-2 Calcium %
34832 Inorganics, Major, Metals Calcium, bed sediment smaller than 62.5 microns, dry sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 62.5 microns Bed Sediment 7440-70-2 Calcium %
34833 Inorganics, Major, Metals Calcium, suspended sediment smaller than 62.5 microns, total digestion, dry weight, percent Not checked Dry < 62.5 microns Suspended 7440-70-2 Calcium %
34834 Inorganics, Major, Metals Calcium, suspended sediment larger than 62.5 microns, total digestion, dry weight, percent Not checked Dry > 62.5 microns Suspended 7440-70-2 Calcium %
34900 Inorganics, Major, Metals Magnesium, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, percent Not checked Dry < 62.5 microns Bed Sediment 7439-95-4 Magnesium %
34901 Inorganics, Major, Metals Magnesium, bed sediment smaller than 177 microns, wet sieved, field, total digestion, dry weight, percent Not checked Dry < 177 microns Bed Sediment 7439-95-4 Magnesium %
34902 Inorganics, Major, Metals Magnesium, bed sediment smaller than 62.5 microns, dry sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 62.5 microns Bed Sediment 7439-95-4 Magnesium %
34903 Inorganics, Major, Metals Magnesium, suspended sediment smaller than 62.5 microns, total digestion, dry weight, percent Not checked Dry < 62.5 microns Suspended 7439-95-4 Magnesium %
34904 Inorganics, Major, Metals Magnesium, suspended sediment larger than 62.5 microns, total digestion, dry weight, percent Not checked Dry > 62.5 microns Suspended 7439-95-4 Magnesium %
34940 Inorganics, Major, Metals Potassium, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, percent Not checked Dry < 62.5 microns Bed Sediment 7440-09-7 Potassium %
34941 Inorganics, Major, Metals Potassium, bed sediment smaller than 177 microns, wet sieved, field, total digestion, dry weight, percent Not checked Dry < 177 microns Bed Sediment 7440-09-7 Potassium %
34942 Inorganics, Major, Metals Potassium, bed sediment smaller than 62.5 microns, dry sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 62.5 microns Bed Sediment 7440-09-7 Potassium %
34943 Inorganics, Major, Metals Potassium, suspended sediment smaller than 62.5 microns, total digestion, dry weight, percent Not checked Dry < 62.5 microns Suspended 7440-09-7 Potassium %
34944 Inorganics, Major, Metals Potassium, suspended sediment larger than 62.5 microns, total digestion, dry weight, percent Not checked Dry > 62.5 microns Suspended 7440-09-7 Potassium %
34960 Inorganics, Major, Metals Sodium, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, percent Not checked Dry < 62.5 microns Bed Sediment 7440-23-5 Sodium %
34961 Inorganics, Major, Metals Sodium, bed sediment smaller than 177 microns, wet sieved, field, total digestion, dry weight, percent Not checked Dry < 177 microns Bed Sediment 7440-23-5 Sodium %
34962 Inorganics, Major, Metals Sodium, bed sediment smaller than 62.5 microns, dry sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 62.5 microns Bed Sediment 7440-23-5 Sodium %
34963 Inorganics, Major, Metals Sodium, suspended sediment smaller than 62.5 microns, total digestion, dry weight, percent Not checked Dry < 62.5 microns Suspended 7440-23-5 Sodium %
34964 Inorganics, Major, Metals Sodium, suspended sediment larger than 62.5 microns, total digestion, dry weight, percent Not checked Dry > 62.5 microns Suspended 7440-23-5 Sodium %
49027 Inorganics, Major, Metals Calcium, biota, tissue, recoverable, wet weight, milligrams per kilogram Not checked Wet Recoverable 7440-70-2 Calcium mg/kg
49030 Inorganics, Major, Metals Magnesium, biota, tissue, recoverable, wet weight, milligrams per kilogram Not checked Wet Recoverable 7439-95-4 Magnesium mg/kg
51177 Inorganics, Major, Metals Calcium, soil, field, x-ray fluorescence screening method, parts per million Not checked 7440-70-2 Calcium ppm
51178 Inorganics, Major, Metals Potassium, soil, field, x-ray fluorescence screening method, parts per million Not checked 7440-09-7 Potassium ppm
51363 Inorganics, Major, Metals Calcium, bed sediment smaller than 150 um, dry sieved, lab, total digestion, dry weight, percent Not checked Dry <150 um Bed Sediment 7440-70-2 %
51379 Inorganics, Major, Metals Magnesium, bed sediment smaller than 150 um, dry sieved, lab, total digestion, dry weight, percent Not checked Dry <150 um Bed Sediment 7439-95-4 %
51387 Inorganics, Major, Metals Potassium, bed sediment smaller than 150 um, dry sieved, lab, total digestion, dry weight, percent Not checked Dry <150 um Bed Sediment 7440-09-7 %
51391 Inorganics, Major, Metals Sodium, bed sediment smaller than 150 um, dry sieved, lab, total digestion, dry weight, percent Not checked Dry <150 um Bed Sediment 7440-23-5 %
52143 Inorganics, Major, Metals Potassium, soil, recoverable, dry weight, milligrams per kilogram Not checked Dry Recoverable 7440-09-7 mg/kg
52281 Inorganics, Major, Metals Potassium, water, unfiltered, milligrams per liter Not checked Total 7440-09-7 ug/l
52282 Inorganics, Major, Metals Magnesium, water, unfiltered, milligrams per liter Not checked Total 7439-95-4 ug/l
52284 Inorganics, Major, Metals Sodium, water, unfiltered, milligrams per liter Not checked Total 7440-23-5 ug/l
52288 Inorganics, Major, Metals Calcium, water, unfiltered, milligrams per liter Not checked 7440-70-2 mg/l
52289 Inorganics, Major, Metals Magnesium, water, unfiltered, milligrams per liter Not checked 7439-95-4 mg/l
52290 Inorganics, Major, Metals Sodium, water, unfiltered, milligrams per liter Not checked 7440-23-5 mg/l
52291 Inorganics, Major, Metals Potassium, water, unfiltered, milligrams per liter Not checked 7440-09-7 mg/l
52330 Inorganics, Major, Metals Calcium, bed sediment smaller than 2 millimeters, dry sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 2 mm Bed Sediment 7440-70-2 %
52331 Inorganics, Major, Metals Calcium, bed sediment smaller than 250 microns, dry sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 2 mm Bed Sediment 7440-70-2 %
52362 Inorganics, Major, Metals Potassium, bed sediment smaller than 250 microns, dry sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 2 mm Bed Sediment 7440-09-7 %
52363 Inorganics, Major, Metals Potassium, bed sediment smaller than 2 millimeters, dry sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 2 mm Bed Sediment 7440-09-7 %
52370 Inorganics, Major, Metals Sodium, bed sediment smaller than 2 millimeters, dry sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 2 mm Bed Sediment 7440-23-5 %
52371 Inorganics, Major, Metals Sodium, bed sediment smaller than 250 microns, dry sieved, laboratory, total digestion, dry weight, percent Not checked Dry < 2 mm Bed Sediment 7440-23-5 %
52501 Inorganics, Major, Metals Calcium, water, unfiltered, recoverable, micrograms per liter Not checked Recoverable 7440-70-2 ug/l
52502 Inorganics, Major, Metals Magnesium, water, unfiltered, recoverable, micrograms per liter Not checked Recoverable 7439-95-4 ug/l
52503 Inorganics, Major, Metals Potassium, water, unfiltered, recoverable, micrograms per liter Not checked Recoverable 7440-09-7 ug/l
52504 Inorganics, Major, Metals Sodium, water, unfiltered, recoverable, micrograms per liter Not checked Recoverable 7440-23-5 ug/l
52515 Inorganics, Major, Metals Calcium, bed sediment, recoverable, dry weight, micrograms per kilogram Not checked Dry Bed Sediment 7440-70-2 ug/kg
52519 Inorganics, Major, Metals Magnesium, bed sediment, recoverable, dry weight, micrograms per kilogram Not checked Dry Bed Sediment 7439-95-4 ug/kg
52522 Inorganics, Major, Metals Potassium, bed sediment, recoverable, dry weight, micrograms per kilogram Not checked Dry Bed Sediment 7440-09-7 ug/kg
52524 Inorganics, Major, Metals Sodium, bed sediment, recoverable, dry weight, micrograms per kilogram Not checked Dry Bed Sediment 7440-23-5 ug/kg
52528 Inorganics, Major, Metals Calcium, water, unfiltered, milligrams per liter Not checked Total 7440-70-2 mg/l
52702 Inorganics, Major, Metals Magnesium, bed sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 7439-95-4 mg/kg
52704 Inorganics, Major, Metals Potassium, bed sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 7440-09-7 mg/kg
52707 Inorganics, Major, Metals Sodium, bed sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 7440-23-5 mg/kg
52713 Inorganics, Major, Metals Calcium, bed sediment, total digestion, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 7440-70-2 mg/kg
52718 Inorganics, Major, Metals Calcium, biota, tissue, total digestion, dry weight, milligrams per kilogram Not checked Dry Total 7440-70-2 mg/kg
52719 Inorganics, Major, Metals Magnesium, biota, tissue, total digestion, dry weight, milligrams per kilogram Not checked Dry Total 7439-95-4 mg/kg
52720 Inorganics, Major, Metals Potassium, biota, tissue, total digestion, dry weight, milligrams per kilogram Not checked Dry Total 7440-09-7 mg/kg
52721 Inorganics, Major, Metals Sodium, biota, tissue, total digestion, dry weight, milligrams per kilogram Not checked Dry Total 7440-23-5 mg/kg
53698 Inorganics, Major, Metals Potassium, bed sediment, 0.25 M hydroxylamine hydrochloride acid extracted, recoverable, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 7440-09-7 mg/kg
53701 Inorganics, Major, Metals Magnesium, bed sediment, 0.25 M hydroxylamine hydrochloride acid extracted, recoverable, dry weight, milligrams per kilogram Not checked Dry Bed Sediment 7439-95-4 mg/kg
61715 Inorganics, Major, Metals Magnesium, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, percent Agree Dry < 2 mm Bed Sediment 7439-95-4 Magnesium %
61718 Inorganics, Major, Metals Potassium, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, percent Agree Dry < 2 mm Bed Sediment 7440-09-7 Potassium %
61720 Inorganics, Major, Metals Sodium, bed sediment smaller than 2 millimeters, wet sieved (native water), total digestion, dry weight, percent Agree Dry < 2 mm Bed Sediment 7440-23-5 Sodium %
62456 Inorganics, Major, Metals Calcium, bed sediment, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Bed Sediment 7440-70-2 Calcium mg/kg
62457 Inorganics, Major, Metals Potassium, bed sediment, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Bed Sediment 7440-09-7 Potassium mg/kg
62458 Inorganics, Major, Metals Magnesium, bed sediment, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Bed Sediment 7439-95-4 Magnesium mg/kg
62459 Inorganics, Major, Metals Sodium, bed sediment, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Bed Sediment 7440-23-5 Sodium mg/kg
62921 Inorganics, Major, Metals Calcium, suspended sediment, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Suspended 7440-70-2 Calcium mg/kg
62922 Inorganics, Major, Metals Magnesium, suspended sediment, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Suspended 7439-95-4 Magnesium mg/kg
64842 Inorganics, Major, Metals Calcium, biota, tissue, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7440-70-2 Calcium mg/kg
64844 Inorganics, Major, Metals Magnesium, biota, tissue, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7439-95-4 Magnesium mg/kg
64845 Inorganics, Major, Metals Potassium, biota, tissue, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7440-09-7 Potassium mg/kg
64846 Inorganics, Major, Metals Sodium, biota, tissue, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7440-23-5 Sodium mg/kg
65171 Inorganics, Major, Metals Calcium, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry < 62.5 microns Bed Sediment 7440-70-2 Calcium mg/kg
65174 Inorganics, Major, Metals Magnesium, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry < 62.5 microns Bed Sediment 7439-95-4 Magnesium mg/kg
65176 Inorganics, Major, Metals Potassium, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry < 62.5 microns Bed Sediment 7440-09-7 Potassium mg/kg
65178 Inorganics, Major, Metals Sodium, bed sediment smaller than 62.5 microns, wet sieved, field, total digestion, dry weight, milligrams per kilogram USGS use and no use by EPA Dry < 62.5 microns Bed Sediment 7440-23-5 Sodium mg/kg
65198 Inorganics, Major, Metals Potassium, solids, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7440-09-7 Potassium mg/kg
67906 Inorganics, Major, Metals Calcium, solids, total digestion, dry weight, percent USGS use and no use by EPA Dry Total 7440-70-2 %
67914 Inorganics, Major, Metals Magnesium, solids, total digestion, dry weight, percent USGS use and no use by EPA Dry Total 7439-95-4 %
67919 Inorganics, Major, Metals Potassium, solids, total digestion, dry weight, percent USGS use and no use by EPA Dry Total 7440-09-7 %
67922 Inorganics, Major, Metals Sodium, solids, total digestion, dry weight, percent USGS use and no use by EPA Dry Total 7440-23-5 %
68810 Inorganics, Major, Metals Potassium, rock, total (whole-rock analysis), dry weight, percent USGS use and no use by EPA Dry Total 7440-09-7 %
68811 Inorganics, Major, Metals Calcium, rock, total (whole-rock analysis), dry weight, percent USGS use and no use by EPA Dry Total 7440-70-2 %
68924 Inorganics, Major, Metals Calcium, soil, exchangeable in 1.0 M ammonium chloride, recoverable, dry weight, centimole per kilogram USGS use and no use by EPA Dry 7440-70-2 Calcium cmol/kg
68925 Inorganics, Major, Metals Magnesium, soil, exchangeable in 1.0 M ammonium chloride, recoverable, dry weight, centimole per kilogram USGS use and no use by EPA Dry 7439-95-4 Magnesium cmol/kg
68926 Inorganics, Major, Metals Sodium, soil, exchangeable in 1.0 M ammonium chloride, recoverable, dry weight, centimole per kilogram USGS use and no use by EPA Dry 7440-23-5 Sodium cmol/kg
68927 Inorganics, Major, Metals Potassium, soil, exchangeable in 1.0 M ammonium chloride, recoverable, dry weight, centimole per kilogram USGS use and no use by EPA Dry 7440-09-7 Potassium cmol/kg
81201 Inorganics, Major, Metals Calcium, water, dissolved, short tons per day Not checked Dissolved 7440-70-2 Calcium tons/day
81202 Inorganics, Major, Metals Magnesium, water, dissolved, short tons per day Not checked Dissolved 7439-95-4 Magnesium tons/day
81203 Inorganics, Major, Metals Sodium, water, dissolved, short tons per day Not checked Dissolved 7440-23-5 Sodium tons/day
81204 Inorganics, Major, Metals Potassium, water, dissolved, short tons per day Not checked Dissolved 7440-09-7 Potassium tons/day
81357 Inorganics, Major, Metals Calcium, suspended sediment, milligrams per liter Agree Suspended 7440-70-2 Calcium mg/l
82032 Inorganics, Major, Metals Calcium, water, unfiltered, micrograms per liter Agree Total 7440-70-2 ug/l
82033 Inorganics, Major, Metals Magnesium, water, unfiltered, micrograms per liter Agree Total 7439-95-4 ug/l
82034 Inorganics, Major, Metals Potassium, water, unfiltered, micrograms per liter Agree Total 7440-09-7 ug/l
82035 Inorganics, Major, Metals Sodium, water, unfiltered, micrograms per liter Agree Total 7440-23-5 ug/l
82427 Inorganics, Major, Metals Potassium, soluble, dry atmospheric deposition, milligrams per kilogram Agree 7440-09-7 Potassium mg/kg
82430 Inorganics, Major, Metals Sodium, soluble, dry atmospheric deposition, milligrams per kilogram Agree 7440-23-5 Sodium mg/kg
82472 Inorganics, Major, Metals Calcium, soluble, dry atmospheric deposition, milligrams per kilogram Agree 7440-70-2 Calcium mg/kg
82473 Inorganics, Major, Metals Magnesium, soluble, dry atmospheric deposition, milligrams per kilogram Agree 7439-95-4 Magnesium mg/kg
82932 Inorganics, Major, Metals Calcium, wet atmospheric deposition, filtered, milligrams per liter Agree Dissolved 7440-70-2 Calcium mg/l
82933 Inorganics, Major, Metals Calcium, wet atmospheric deposition, filtered, milligrams per square meter Agree Dissolved 7440-70-2 Calcium mg/m2
82938 Inorganics, Major, Metals Calcium, wet atmospheric deposition, unfiltered, recoverable, milligrams per liter Agree Recoverable 7440-70-2 Calcium mg/l
83002 Inorganics, Major, Metals Magnesium, wet atmospheric deposition, filtered, milligrams per liter Agree Dissolved 7439-95-4 Magnesium mg/l
83003 Inorganics, Major, Metals Magnesium, wet atmospheric deposition, filtered, milligrams per square meter Agree Dissolved 7439-95-4 Magnesium mg/m2
83120 Inorganics, Major, Metals Potassium, wet atmospheric deposition, filtered, milligrams per liter Agree Dissolved 7440-09-7 Potassium mg/l
83121 Inorganics, Major, Metals Potassium, wet atmospheric deposition, filtered, milligrams per square meter Agree Dissolved 7440-09-7 Potassium mg/m2
83131 Inorganics, Major, Metals Potassium, wet atmospheric deposition, unfiltered, microequivalents per liter Agree Total 7440-09-7 Potassium ueq/L
83138 Inorganics, Major, Metals Sodium, wet atmospheric deposition, filtered, milligrams per liter Agree Dissolved 7440-23-5 Sodium mg/l
83139 Inorganics, Major, Metals Sodium, wet atmospheric deposition, filtered, milligrams per square meter Agree Dissolved 7440-23-5 Sodium mg/m2
83214 Inorganics, Major, Metals Calcium, bulk atmospheric deposition, filtered, milligrams per liter Agree Dissolved 7440-70-2 Calcium mg/l
83284 Inorganics, Major, Metals Magnesium, bulk atmospheric deposition, filtered, milligrams per liter Agree Dissolved 7439-95-4 Magnesium mg/l
83402 Inorganics, Major, Metals Potassium, bulk atmospheric deposition, filtered, milligrams per liter Agree Dissolved 7440-09-7 Potassium mg/l
83420 Inorganics, Major, Metals Sodium, bulk atmospheric deposition, filtered, milligrams per liter Agree Dissolved 7440-23-5 Sodium mg/l
85769 Inorganics, Major, Metals Sodium, biota, tissue, recoverable, wet weight, milligrams per kilogram Agree Wet Recoverable 7440-23-5 Sodium mg/kg
85770 Inorganics, Major, Metals Potassium, biota, tissue, recoverable, wet weight, milligrams per kilogram Agree Wet Recoverable 7440-09-7 Potassium mg/kg
90856 Inorganics, Major, Metals Sodium adsorption ratio (SAR), water, estimated by regression equation, number USGS use and no use by EPA Total Sodium adsorption ratio None
90857 Inorganics, Major, Metals Sodium adsorption ratio (SAR), water, unfiltered, field, number USGS use and no use by EPA Total Sodium adsorption ratio None
90858 Inorganics, Major, Metals Sodium adsorption ratio (SAR), water, filtered, field, number USGS use and no use by EPA Dissolved Sodium adsorption ratio None
90872 Inorganics, Major, Metals Sodium adsorption ratio (SAR), soil, ratio Not checked Total Sodium adsorption ratio ratio
91051 Inorganics, Major, Metals Calcium, water, filtered, micrograms per liter USGS use and no use by EPA Dissolved 7440-70-2 Calcium ug/l
91052 Inorganics, Major, Metals Magnesium, water, filtered, micrograms per liter USGS use and no use by EPA Dissolved 7439-95-4 Magnesium ug/l
91053 Inorganics, Major, Metals Sodium, water, filtered, micrograms per liter USGS use and no use by EPA Dissolved 7440-23-5 Sodium ug/l
91054 Inorganics, Major, Metals Potassium, water, filtered, micrograms per liter USGS use and no use by EPA Dissolved 7440-09-7 Potassium ug/l
91715 Inorganics, Major, Metals Potassium, solids, 6 N hydrochloric acid extracted, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7440-09-7 Potassium mg/kg
91716 Inorganics, Major, Metals Sodium, solids, 6 N hydrochloric acid extracted, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7440-23-5 Sodium mg/kg
91717 Inorganics, Major, Metals Magnesium, solids, 6 N hydrochloric acid extracted, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7439-95-4 Magnesium mg/kg
91718 Inorganics, Major, Metals Calcium, solids, 6 N hydrochloric acid extracted, recoverable, dry weight, milligrams per kilogram USGS use and no use by EPA Dry Recoverable 7440-70-2 Calcium mg/kg
99398 Inorganics, Major, Metals Sodium, water, filtered, estimated by regression equation, milligrams per liter Not checked Dissolved 7440-23-5 mg/l
99399 Inorganics, Major, Metals Calcium, water, filtered, estimated by regression equation, milligrams per liter Not checked Dissolved 7440-70-2 mg/l
