Database fields, all categories

Sample identification
	`rec_no`	NURE record ID or USGS record ID code
	`labno`	Unique laboratory name for analyzed sample
	`dataset`	Description of group of samples of which this one is a member
	`joinname`
	`category`	General type of sample to which the sample-set belongs
	`typedesc`	Abbreviated description of sample type: stream/pond/spring/soil/etc
Geographic location
	`datum`	Datum of the geographic coordinates
	`latitude`	Latitude in decimal degrees
	`longitude`	Longitude in decimal degrees (negative = West)
	`quad24code`	Code for the USGS 1:24,000 (7.5 minute) quadrangle in which sample is located
	`quad250cod`	Code for the USGS 1:250,000 (1x2-degree) quadrangle in which sample is located
	`quad100cod`	Code for the USGS 1:100,000 (1:62,500 in Alaska) quadrangle in which sample is located
	`fips`	FIPS of county calculated from geographic coordinates
	`huc_8`	8-digit hydrologic unit code calculated from geographic coordinates
	`qd250name`	Name of USGS 1:250,000 (1x2-degree) quadrangle in which sample is located
	`zip3`	The zip code where the sample was taken. Three most significant digits only; if the full zip code would be 20192, this field wi
	`congdist`	Unique identifier for the US congressional district from which the sample was taken.
Sample characteristics
	`fldnam`	Field name of sample, possibly corrected after laboratory analysis.
	`coll_date`	Day on which the sample was collected in the field
	`descript`	Sample description and field notes
	`stype`	3-digit code for the sample medium and collection protocol
	`soil_horiz`	Soil horizon from which the sample was collected (soils only).
	`color`	Observed color of powdered sample during splitting, prior to USGS analysis
	`smpgrsize`	Grain size of material collected in the field (descriptive)
	`medium`	Sample medium (rock, sediment, standard, or unknown)
	`source`	Geological source of the sample medium that was collected
	`source_mod`	Adjective describing sample source
	`upsieve`	Sieve size (micrometers) through which sample passed prior to analysis
	`dried`	Manner in which sample was dried prior to analysis
	`stypenote`	Notes relevant to medium, source, source_mod, upsieve, and dried fields
Site characteristics
	`setting`	Physiographic setting of sample site
	`acchanwid`	Width of active stream channel at collection site
	`waterdep`	Depth of water at collection site
	`watcol`	Color of water at collection site
	`flowstage`	Flow stage of stream at time of sample collection
	`flowrate`	Description of flow rate of stream at time of sample collection
	`strbed`	Material in stream bed at sample collection site
	`contamsou`	Observed sources of anthropogenic contamination near sample site
	`contampot`	Likelihood that the sample is contaminated
	`contamdegr`	Degree to which sample is likely to be contaminated
	`veg`	Description of vegetation around sample site
	`ph`	pH of water at sample site
Sample characteristics (details)
	`grainsize`	Grain size observed during splitting prior to USGS analysis (coarse or fine)
	`collector`	Name, abbreviation, or code for person or team that collected the sample
	`prime_id`	Primary NURE sample name
	`laslid`	Los Alamos NURE field name
	`ornlid`	Oak Ridge NURE field name
	`srlid`	Savannah River NURE field name
	`lllid`	Lawrence Livermore NURE field name
	`site`	Other NURE name info
	`xsite`	Quality control/assurance info for Lawrence Livermore Lab
	`replc`	NURE Replicate codes
	`labcond`	Conductivity meaured in laboratory
	`grabs`	Number of grabs or subsamples
	`samphr`	Time of day that sample was collected
	`orgn_pct`	Estimated %organics
	`study`	Special NURE study code
	`odor`	Sample odor observed in field
Site characteristics (details)
	`photos`	Names of photographs taken at collection site
	`fldplnwid`	Width of flood plain at sample collection site
	`relief`	Relief in drainage basin from which sample was collected
	`formation`	Code or name of geologic formation in which sample area was located
	`sgeounit`	Geologic unit at sample site
	`alk`	Total alkalinity of water at sample site
	`o_diss`	Dissolved oxygen (ppm) in water at sample site
	`scin`	Gamma activity at sample site
	`airtemp`	Air temperature at time of collection
	`wtrtemp`	Water temperature at time of collection
	`cond`	Conductivity of water at sample site
	`strflow`	Stream velocity (m/s) at sample collection site
	`str_chan`	Describes whether stream is depositing or eroding at collection site
	`weath`	Weather observations at time of sample collection
	`veg_dens`	Density of vegetation around sample site
	`rock_type`	Rock type in area of sample collection
	`rock_col`	Rock color in area of sample collection
Analyses by ICP/Acid dissolution
	`icp40_job`	Job number for ICP 40-element method
	`al_icp40`	Al (wt%) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`ca_icp40`	Ca (wt%) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`fe_icp40`	Fe (wt%) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`k_icp40`	K (wt%) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`mg_icp40`	Mg (wt%) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`na_icp40`	Na (wt%) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`p_icp40`	P (wt%) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`ti_icp40`	Ti (wt%) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`ag_icp40`	Ag (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`as_icp40`	As (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`au_icp40`	Au (ppb) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`ba_icp40`	Ba (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`be_icp40`	Be (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`bi_icp40`	Bi (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`cd_icp40`	Cd (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`ce_icp40`	Ce (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`co_icp40`	Co (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`cr_icp40`	Cr (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`cu_icp40`	Cu (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`eu_icp40`	Eu (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`ga_icp40`	Ga (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`ho_icp40`	Ho (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`la_icp40`	La (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`li_icp40`	Li (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`mn_icp40`	Mn (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`mo_icp40`	Mo (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`nb_icp40`	Nb (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`nd_icp40`	Nd (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`ni_icp40`	Ni (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`pb_icp40`	Pb (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`sc_icp40`	Sc (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`sn_icp40`	Sn (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`sr_icp40`	Sr (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`ta_icp40`	Ta (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`th_icp40`	Th (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`u_icp40`	U (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`v_icp40`	V (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`y_icp40`	Y (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`yb_icp40`	Yb (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`zn_icp40`	Zn (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`cs_icp40`	Cs (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`rb_icp40`	Rb (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`sb_icp40`	Sb (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
	`zr_icp40`	Zr (ppm) by Inductively Coupled Plasma Spectrometry after acid dissolution
Analyses by AA
	`as_job`	Job number for As method
	`as_aa`	As (ppm) by Hydride Atomic Absorption
	`se_job`	Job number for Se method
	`se_aa`	Se (ppm) by Hydride Atomic Absorption
	`hg_job`	Job number for Hg method
	`hg_aa`	Hg (ppm) by Cold Vapor Atomic Absorption
	`sb_job`	Job number for Sb method
	`sb_aa`	Sb (ppm) by Hydride Atomic Absorption
	`te_job`	Job number for Te method
	`te_aa`	Te (ppm) by Hydride Atomic Absorption
	`tl_job`	Job number for Tl method
	`tl_aa`	Tl (ppm) by Hydride Atomic Absorption
	`w_job`	Job number for W method
	`w_vs`	W (ppm) by Visible Spectrophotometry
	`au_job`	Job number for Au method
	`au_aa`	Au (ppb) by Graphite Furnace Atomic Absorption
	`pdpt_job`	Job number for Pd and Pt method
	`pd_aa`	Pd (ppb) by Graphite Furnace Atomic Absorption
	`pt_aa`	Pt (ppb) by Graphite Furnace Atomic Absorption
Analyses by ICP Partial Chem
	`icp10_job`	Job number for ICP 10-element partial extraction method
	`ag_icp10`	Ag (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`as_icp10`	As (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`au_icp10`	Au (ppb) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`bi_icp10`	Bi (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`cd_icp10`	Cd (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`cu_icp10`	Cu (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`mo_icp10`	Mo (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`pb_icp10`	Pb (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`sb_icp10`	Sb (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`zn_icp10`	Zn (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`ga_icp10`	Ga (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`hg_icp10`	Hg (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`se_icp10`	Se (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`te_icp10`	Te (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
	`tl_icp10`	Tl (ppm) by Partial Extraction Inductively Coupled Plasma Spectrometry
Analyses by Fusion ICP
	`icp16_job`	Job number for ICP 16-element fusion method
	`al_icp16`	Al (wt%) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`ca_icp16`	Ca (wt%) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`fe_icp16`	Fe (wt%) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`k_icp16`	K (wt%) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`mg_icp16`	Mg (wt%) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`na_icp16`	Na (wt%) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`p_icp16`	P (wt%) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`si_icp16`	Si (wt%) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`ti_icp16`	Ti (wt%) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`ba_icp16`	Ba (ppm) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`cr_icp16`	Cr (ppm) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`mn_icp16`	Mn (ppm) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`nb_icp16`	Nb (ppm) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`sr_icp16`	Sr (ppm) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`y_icp16`	Y (ppm) by Inductively Coupled Plasma Spectrometry after peroxide fusion
	`zr_icp16`	Zr (ppm) by Inductively Coupled Plasma Spectrometry after peroxide fusion
Analyses by NAA
	`inaajob_us`	Job number for USGS INAA method
	`inaajob_be`	Job number for Becquerel INAA method
	`na_inaa`	Na (wt%) by Instrumental Neutron Activation Analysis
	`sc_inaa`	Sc (ppm) by Instrumental Neutron Activation Analysis
	`ti_inaa`	Ti (wt%) by Instrumental Neutron Activation Analysis
	`cr_inaa`	Cr (ppm) by Instrumental Neutron Activation Analysis
	`fe_inaa`	Fe (wt%) by Instrumental Neutron Activation Analysis
	`co_inaa`	Co (ppm) by Instrumental Neutron Activation Analysis
	`ni_inaa`	Ni (ppm) by Instrumental Neutron Activation Analysis
	`zn_inaa`	Zn (ppm) by Instrumental Neutron Activation Analysis
	`as_inaa`	As (ppm) by Instrumental Neutron Activation Analysis
	`br_inaa`	Br (ppm) by Instrumental Neutron Activation Analysis
	`rb_inaa`	Rb (ppm) by Instrumental Neutron Activation Analysis
	`sr_inaa`	Sr (ppm) by Instrumental Neutron Activation Analysis
	`zr_inaa`	Zr (ppm) by Instrumental Neutron Activation Analysis
	`mo_inaa`	Mo (ppm) by Instrumental Neutron Activation Analysis
	`sb_inaa`	Sb (ppm) by Instrumental Neutron Activation Analysis
	`cs_inaa`	Cs (ppm) by Instrumental Neutron Activation Analysis
	`ba_inaa`	Ba (ppm) by Instrumental Neutron Activation Analysis
	`la_inaa`	La (ppm) by Instrumental Neutron Activation Analysis
	`ce_inaa`	Ce (ppm) by Instrumental Neutron Activation Analysis
	`nd_inaa`	Nd (ppm) by Instrumental Neutron Activation Analysis
	`sm_inaa`	Sm (ppm) by Instrumental Neutron Activation Analysis
	`eu_inaa`	Eu (ppm) by Instrumental Neutron Activation Analysis
	`tb_inaa`	Tb (ppm) by Instrumental Neutron Activation Analysis
	`yb_inaa`	Yb (ppm) by Instrumental Neutron Activation Analysis
	`lu_inaa`	Lu (ppm) by Instrumental Neutron Activation Analysis
	`hf_inaa`	Hf (ppm) by Instrumental Neutron Activation Analysis
	`ta_inaa`	Ta (ppm) by Instrumental Neutron Activation Analysis
	`w_inaa`	W (ppm) by Instrumental Neutron Activation Analysis
	`au_inaa`	Au (ppb) by Instrumental Neutron Activation Analysis
	`th_inaa`	Th (ppm) by Instrumental Neutron Activation Analysis
	`u_inaa`	U (ppm) by Instrumental Neutron Activation Analysis
	`dn_job`	Job number for Delayed Neutron method
	`u_dn`	U (ppm) by Delayed Neutron Activation Analysis
	`th_dn`	Th (ppm) by Delayed Neutron Activation Analysis
Analyses by XRF
	`xrf_job`	Job number for XRF method
	`sio2_xrf`	SiO2 (wt%) by Wavelength-Dispersive X-Ray Fluorescence
	`al2o3_xrf`	Al2O3 (wt%) by Wavelength-Dispersive X-Ray Fluorescence
	`fe2o3_xrf`	Fe2O3 (wt%) by Wavelength-Dispersive X-Ray Fluorescence
	`mgo_xrf`	MgO (wt%) by Wavelength-Dispersive X-Ray Fluorescence
	`cao_xrf`	CaO (wt%) by Wavelength-Dispersive X-Ray Fluorescence
	`na2o_xrf`	Na2O (wt%) by Wavelength-Dispersive X-Ray Fluorescence
	`k2o_xrf`	K2O (wt%) by Wavelength-Dispersive X-Ray Fluorescence
	`tio2_xrf`	TiO2 (wt%) by Wavelength-Dispersive X-Ray Fluorescence
	`p2o5_xrf`	P2O5 (wt%) by Wavelength-Dispersive X-Ray Fluorescence
	`mno_xrf`	MnO (wt%) by Wavelength-Dispersive X-Ray Fluorescence
	`loi925c`	Loss on Ignition (wt%) preceding Wavelength-Dispersive X-Ray Fluorescence
Analyses for light elements
	`c_s_job`	Job number for Carbon and Sulfur method
	`c_tot`	Total carbon (wt%) by Combustion
	`c_org`	Organic carbon (wt%) by difference from c_tot and c_co3
	`c_co3`	Carbonate carbon (wt%) by Coulometric Titration
	`s_tot`	Total sulfur (wt%) by Combustion
Analyses by NURE program
	`al_nure`	Al (wt%) measured by the NURE program
	`ca_nure`	Ca (wt%) measured by the NURE program
	`fe_nure`	Fe (wt%) measured by the NURE program
	`k_nure`	K (wt%) measured by the NURE program
	`mg_nure`	Mg (wt%) measured by the NURE program
	`na_nure`	Na (wt%) measured by the NURE program
	`ag_nure`	Ag (ppm) measured by the NURE program
	`as_nure`	As (ppm) measured by the NURE program
	`au_nure`	Au (ppb) measured by the NURE program
	`b_nure`	B (ppm) measured by the NURE program
	`ba_nure`	Ba (ppm) measured by the NURE program
	`be_nure`	Be (ppm) measured by the NURE program
	`bi_nure`	Bi (ppm) measured by the NURE program
	`br_nure`	Br (ppm) measured by the NURE program
	`cd_nure`	Cd (ppm) measured by the NURE program
	`ce_nure`	Ce (ppm) measured by the NURE program
	`cl_nure`	Cl (ppm) measured by the NURE program
	`co_nure`	Co (ppm) measured by the NURE program
	`cr_nure`	Cr (ppm) measured by the NURE program
	`cs_nure`	Cs (ppm) measured by the NURE program
	`cu_nure`	Cu (ppm) measured by the NURE program
	`dy_nure`	Dy (ppm) measured by the NURE program
	`eu_nure`	Eu (ppm) measured by the NURE program
	`f_nure`	F (ppm) measured by the NURE program
	`hf_nure`	Hf (ppm) measured by the NURE program
	`hg_nure`	Hg (ppm) measured by the NURE program
	`la_nure`	La (ppm) measured by the NURE program
	`li_nure`	Li (ppm) measured by the NURE program
	`lu_nure`	Lu (ppm) measured by the NURE program
	`mn_nure`	Mn (ppm) measured by the NURE program
	`mo_nure`	Mo (ppm) measured by the NURE program
	`nb_nure`	Nb (ppm) measured by the NURE program
	`ni_nure`	Ni (ppm) measured by the NURE program
	`p_nure`	P (ppm) measured by the NURE program
	`pb_nure`	Pb (ppm) measured by the NURE program
	`pt_nure`	Pt (ppm) measured by the NURE program
	`rb_nure`	Rb (ppm) measured by the NURE program
	`sb_nure`	Sb (ppm) measured by the NURE program
	`sc_nure`	Sc (ppm) measured by the NURE program
	`se_nure`	Se (ppm) measured by the NURE program
	`sm_nure`	Sm (ppm) measured by the NURE program
	`sn_nure`	Sn (ppm) measured by the NURE program
	`sr_nure`	Sr (ppm) measured by the NURE program
	`ta_nure`	Ta (ppm) measured by the NURE program
	`tb_nure`	Tb (ppm) measured by the NURE program
	`th_nure`	Th (ppm) measured by the NURE program
	`ti_nure`	Ti (wt%) measured by the NURE program
	`v_nure`	V (ppm) measured by the NURE program
	`w_nure`	W (ppm) measured by the NURE program
	`y_nure`	Y (ppm) measured by the NURE program
	`yb_nure`	Yb (ppm) measured by the NURE program
	`zn_nure`	Zn (ppm) measured by the NURE program
	`zr_nure`	Zr (ppm) measured by the NURE program
	`u_nure`	U (ppm) [Preferred value if more than one method was used by NURE]
Processing information
	`labno2`	A second name under which the same sample was analyzed
	`prev_labno`	Unique laboratory name for sample when analyzed at USGS 1980-1997.
	`fldnam_an`	Field name of sample as analyzed (authoritative name in FLDNAM field)
	`aov_code`	Analysis of variance code
	`replicate`	Lab number of duplicate analysis
	`loc_count`	Number of samples at these coordinates
	`anal_notes`	Notes made during processing of data
	`nure_meth`	Analytical method codes for ~1980 NURE data