Sediment Database and Geochemical Assessment of Lake Pontchartrain Basin

Online link https://geo-nsdi.er.usgs.gov/metadata/professional-paper/1634/metadata.faq.html
Description Detailed chemical, station (source and documentation, sample locations), and texture data are provided for bottom sediments of Lake Pontchartrain, Louisiana. The sediment data are provided as spreadsheet (Microsoft Excel), database (Microsoft Access), and
Originators Manheim, Frank T. and Hayes, Laura
Publication U.S. Geological Survey Professional Paper PP-1634

Related topics

States or counties

Station

table in the database

Label Definition
UNIQUE_ID Database ID unique to this specific sample; assigned by USGS; used to link data between tables
ORIGNL_ID If this data is taken from a previous data compilation, enter the unique ID NUMBER within the other database that refers to this data. See ORIG_STATN for original station name.
ORIGL_FILE Database file name from which this specific sample came (see ORIG_DB_NM for name of entire database)
LATITUDE Latitude in decimal-degrees (south latitudes are negative)
LAT_DEG_N degrees of latitude in whole degrees (if originally reported that way)
LAT_MIN_N minutes of latitude in whole or decimal units (if originally reported that way)
LAT_SEC_N seconds of latitude in whole or decimal units (if originally reported that way)
LAT_ORIG format and precision of originally recorded latitude (indicate format and significant digits, e.g.. ddmmss.s; dd.dddd)
LONGITUDE Longitude in decimal-degrees (West longitude is depicted by negative values.)
LON_DEG_W degrees of longitude (West) in whole degrees (if originally reported that way)
LON_MIN_W minutes of longitude (West) in whole or decimal minutes (if originally reported that way)
LON_SEC_W seconds of longitude (West) in whole or decimal units (if originally reported that way)
LON_ORIG format and precision of originally recorded longitude (west), eg. ddmmss.s; dd.dddd; ffffff
ORIG_LOC Original location if given in units other than latitude and longitude (e.g., State Plane or distance from a point)
NAV_MODE Navigational system used, e.g. LORAN C, GPS, triangulation, read from a sketch map
SOUNDING_M Measured depth of water overlying sediment at sample time, in meters
SNDNG_ORIG Measured depth of water overlying sediment at sample time, in original units if other than meters
SNDG_UNITS Depth units for SNDG_ORIG (meters, feet, fathoms, etc.)
AGNC1_SPON Agency or researcher sponsoring or publishing the work, see listing for abbreviations
SRCE_OR_RF Source of information, or reference (usually authors and year)
COM_ON_REF Any comments about reference from which data was entered
ORIG_DB_NM If this data is taken from another data compilation or database, enter the NAME of that database here.
PROJ_NAME ID when data source/study is part of a larger study or of a regulatory action
STATE_NAME Name of state encompassing sample location
GEN_LOC_NM General location name (enough to easily locate on a state map)
SPECFC_LOC Specific location (nearest name on a 1:25,000 NOAA-type Chart)
AREA_CODE An alphabetical code created to identify approximate sample location for data analysis. Codes correspond to areas within the lakes and waterways. For further information, see http://pubs.usgs.gov/pp/p1634j/html/area_cd.htm
AREA_CD_SQ A numerical code derived from an index grid used in analysis. This index provides a convenient way to search or sort data from specific localities covered by the database. Each grid square is approx 7.5 sq-km. For further information, see http://pubs.usgs.gov/pp/p1634j/html/area_cd2.htm
LOC_CMMNTS Any additional information pertinent to sample location (e.g., exposed mud flat, ) and any correction made to previously recorded locations
SAMP_DAY1 Day of the month sample collected from the natural environment began
MO1 Month sample collected from the natural environment began
YEAR1 Year sample collected from the natural environment began
TO_SMP_DA2 Ending day sample collected from the natural environment finished
MO2 Ending month sample collected from the natural environment finished
YEAR2 Ending year sample collected from the natural environment finished
DATE_Q Qualifier for date
HOUR1 Hour sample collected from natural environment
MIN1 Minute sample collected from natural environment
SAMP_DATE1 Use with caution. Date that sample collection began (Example: Month-Year, or Month-Day-Year) This is a combination of SAMP_DAY1, MO1 and YEAR1. Note that formatted dates are subject to manipulation by computer software.
TO_SMP_DT2 Use with caution. Date that sample collection was completed (Example: Month-Year, or Month-Day-Year) This is a combination of TO_SMP_DA2, MO2 and YEAR2. Note that formatted dates are subject to manipulation by computer software.
ORIG_STATN Name or number of station at which sample collected
SMPLNG_DEV Device used to collect the sample
SAMPL_TYPE Materials in sample analyzed (in current database, each sample is sediment)
DPTH_N_COR The depth of the sample in the sediment if only one number is given, or words if no numerical value is given (e.g., 2 cm; surface) in units of cm
CORE_LENGT Text field showing the total length of the core and its units. Note that the units are not standardized.
DEPTH_TOP Depth interval, TOP of Core or sample (cm)
DEPTH_BTTM Depth interval, BOTTOM of Core or sample (cm)
ORIG_UNITS The original units of the depth of the sample in the sediment when not centimeters
DPTH_CODE Code designating the general depth in the sediment of the sample, e.g., surface, core. Data in this field is derived from other fields and is primarily for use in data analysis.
COMPS_SCHM Describe how sample was combined if analysis was done on composite of samples taken from differing depths or cores
GEN_CMMNTS Any additional information that may help in interpreting data, locating sample in a series, or characterizing sample
DESCRIPTN Any text describing the sample's appearance
EST_VL_MAT Volume of material to be dredged and needing disposal when sample is from a dredge permit application
MTS_INGNCS Y/N answer to indicate whether data for metals and other inorganic parameters are present elsewhere in this database; occasionally contains additional information.
ORG_CNTAMS Y/N answer to indicate whether Organic Contaminants data are present elsewhere in this database; occasionally contains additional information.
GRAIN_SIZE Y/N answer to indicate whether Grain Size or related physical properties are present elsewhere in this database; occasionally contains additional information.
BIOASSAY Y/N answer to indicate whether Bioassay data were collected in conjunction with collection of the sediment sample recorded in this database
OTHR_N_REF Whether any other types of analysis are documented in the reference but not recorded in this database
CMNTS_OTHR Brief summary of any other types of analysis documented in the reference but not recorded in this database
DTA_ENT_DA Day that data was entered into the database table
DTA_ENT_MO Month that data was entered into the database table
DTA_ENT_YR Year that data was entered into the database table
ENTRY_DATE Date (formatted) that data was entered into the database table
INIT_NTRER Initials of the person who entered the data from the original reference or source into the database, see working dictionary for abbreviations

Inorganic

table in the database

Label Definition
UNIQUE_ID Database ID unique to this specific sample; assigned by USGS; used to link data between tables
ANAL_TECH Method used for analysis of each metal
COMMENT1 Any further information about analysis for all or specific metals
AG_UG_G Concentration of Silver (Ag) in the sample in units of µg/g.
AG_Q Any qualifier information or comments about the Silver concentration; e.g. ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc. Original value and units if not µg/g
AG_DL The lowest detectable concentration of Silver for this laboratory and this methodology.
AL_UG_G Concentration of Aluminum ( Al) in the sample in units of µg/g (micrograms per gram).
AL_Q Any qualifier information or comments about the Aluminum concentration; e.g. ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc. Original value and units if not µg/g
AL_DL The lowest detectable concentration of Aluminum for this laboratory and this methodology.
AS_UG_G Concentration of Arsenic (As) in the sample in units of µg/g.
AS_Q Any qualifier information or comments about the As concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc. Original value and units if not µg/g.
AS_DL The lowest detectable concentration of As for this laboratory and this methodology.
BA_UG_G Concentration of Barium (Ba) in the sample in units of µg/g.
BA_Q Any qualifier information or comments about the Ba concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc. Original value in units if not µg/g.
BA_DL The lowest detectable concentration of Ba for this laboratory and this methodology.
BE_UG_G Concentration of Beryllium (Be) in the sample in units of µg/g.
BE_Q Any qualifier information or comments about the Be concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc. Original value and units if not µg/g.
BE_DL The lowest detectable concentration of Be for this laboratory and this methodology.
BI_UG_G Concentration of Bismuth (Bi) in the sample in units of µg/g.
BI_Q Any qualifier information or comments about the Bi concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc. Original value and units if not µg/g.
BI_DL The lowest detectable concentration of Bi for this laboratory and this methodology.
CA_UG_G Concentration of Calcium (Ca) in the sample in units of µg/g.
CA_Q Any qualifier information or comments about the Ca concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc. Original value and units if not µg/g.
CA_DL The lowest detectable concentration of Ca for this laboratory and this methodology.
CD_UG_G Concentration of Cadmium (Cd) in the sample in units of µg/g.
CD_Q Any qualifier information or comments about the Cd concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc. Original value and units if not µg/g
CD_DL The lowest detectable concentration of Cd for this laboratory and this methodology.
CO_UG_G Concentration of Cobalt (Co) in the sample in units of µg/g.
CO_Q Any qualifier information or comments about the Co concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc. Original value and units if not µg/g.
CO_DL The lowest detectable concentration of Co for this laboratory and this methodology.
CR_UG_G Concentration of Chromium (Cr) in the sample in units of µg/g.
CR_Q Any qualifier information or comments about the Cr concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc. Original value and units if not µg/g
CR_DL The lowest detectable concentration of Cr for this laboratory and this methodology.
CU_UG_G Concentration of Copper (Cu) in the sample in units of µg/g.
CU_Q Any qualifier information or comments about the Cu concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
CU_DL The lowest detectable concentration of Cu for this laboratory and this methodology.
FE_UG_G Concentration of Iron (Fe) in the sample in units of µg/g.
FE_Q Any qualifier information or comments about the Fe concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
FE_DL The lowest detectable concentration of Fe for this laboratory and this methodology.
HG_UG_G Concentration of Mercury (Hg) in the sample in units of µg/g.
HG_Q Any qualifier information or comments about the Hg concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
HG_DL The lowest detectable concentration of Hg for this laboratory and this methodology.
K_UG_G Concentration of Potassium (K) in the sample in units of µg/g.
K_Q Any qualifier information or comments about the K concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
K_DL The lowest detectable concentration of K for this laboratory and this methodology.
MG_UG_G Concentration of Magnesium (Mg) in the sample in units of µg/g.
MG_Q Any qualifier information or comments about the Mg concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
MG_DL The lowest detectable concentration of Mg for this laboratory and this methodology.
MN_UG_G Concentration of Manganese (Mn) in the sample in units of µg/g.
MN_Q Any qualifier information or comments about the Mn concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
MN_DL The lowest detectable concentration of Mn for this laboratory and this methodology.
MO_UG_G Concentration of Molybdenum (Mo) in the sample in units of µg/g.
MO_Q Any qualifier information or comments about the Mo concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
MO_DL The lowest detectable concentration of Mo for this laboratory and this methodology.
NA_UG_G Concentration of Sodium (Na) in the sample in units of µg/g.
NA_Q Any qualifier information or comments about the Na concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
NA_DL The lowest detectable concentration of Na for this laboratory and this methodology.
NI_UG_G Concentration of Nickel (Ni) in the sample in units of µg/g.
NI_Q Any qualifier information or comments about the Ni concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
NI_DL The lowest detectable concentration of Ni for this laboratory and this methodology.
P_UG_G Concentration of phosphorus (P) in the sample in units of µg/g.
P_Q Any qualifier information or comments about the P concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
P_DL The lowest detectable concentration of P for this laboratory and this methodology.
P_ORTHO_C Phosphorus ortho in units of µg/g
P_ORTHO_Q Phosphorus ortho qualifier
P_ORTHO_D Phosphorus ortho detection limit
PB_UG_G Concentration of Lead (Pb) in the sample in units of µg/g.
PB_Q Any qualifier information or comments about the Pb concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
PB_DL The lowest detectable concentration of Pb for this laboratory and this methodology.
SB_UG_G Concentration of Antimony (Sb) in the sample in units of µg/g.
SB_Q Any qualifier information or comments about the Sb concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
SB_DL The lowest detectable concentration of Sb for this laboratory and this methodology.
SC_UG_G Concentration of Scandium (Sc) in the sample in units of µg/g.
SC_Q Any qualifier information or comments about the Sc concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
SC_DL The lowest detectable concentration of Sc for this laboratory and this methodology.
SE_UG_G Concentration of Selenium (Se) in the sample in units of µg/g.
SE_Q Any qualifier information or comments about the Se concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
SE_DL The lowest detectable concentration of Se for this laboratory and this methodology.
SN_UG_G Concentration of Tin (Sn) in the sample in units of µg/g.
SN_Q Any qualifier information or comments about the Sn concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
SN_DL The lowest detectable concentration of Sn for this laboratory and this methodology.
SR_UG_G Concentration of Strontium (Sr) in the sample in units of µg/g.
SR_Q Any qualifier information or comments about the Sr concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
SR_DL The lowest detectable concentration of Sr for this laboratory and this methodology.
TI_UG_G Concentration of Titanium (Ti) in the sample in units of µg/g.
TI_Q Any qualifier information or comments about the Ti concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
TI_DL The lowest detectable concentration of Ti for this laboratory and this methodology.
TL_UG_G Concentration of Thallium (Tl) in the sample in units of µg/g.
TL_Q Any qualifier information or comments about the Tl concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
TL_DL The lowest detectable concentration of Tl for this laboratory and this methodology.
V_UG_G Concentration of Vanadium (V) in the sample in units of µg/g.
V_Q Any qualifier information or comments about the V concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
V_DL The lowest detectable concentration of V for this laboratory and this methodology.
W_UG_G Concentration of Tungsten (W) in the sample in units of µg/g.
W_Q Any qualifier information or comments about the W concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
W_DL The lowest detectable concentration of W for this laboratory and this methodology.
Y_UG_G Concentration of Yttrium (Y) in the sample in units of µg/g.
Y_Q Any qualifier information or comments about the Y concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
Y_DL The lowest detectable concentration of Y for this laboratory and this methodology.
ZN_UG_G Concentration of Zinc (Zn) in the sample in units of µg/g.
ZN_Q Any qualifier information or comments about the Zn concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
ZN_DL The lowest detectable concentration of Zn for this laboratory and this methodology.
ZR_UG_G Concentration of Zirconium (Zr) in the sample in units of µg/g.
ZR_Q Any qualifier information or comments about the Zr concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
ZR_DL The lowest detectable concentration of Zr for this laboratory and this methodology.
C_CO3_PCT Concentration of Carbon (carbonate) in the sample in units of %. Do not enter the detection limit here.
C_CO3_Q Any qualifier information or comments about the Carbon (carbonate) concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
C_CO3_DL The lowest detectable concentration of Carbon(carbonate) for this laboratory and this methodology.
C_ORG_PCT Concentration of organic carbon (Corg) in the sample in units of %Corg.
C_ORG_Q Any qualifier information or comments about the organic carbon concentrations; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; etc.
C_ORG_DL The lowest detectable concentration of organic carbon for this laboratory and this methodology.
C_TOT_PCT Concentration of total carbon (Ctot) in the sample in units of %Ctot. Ctot= Cinorg+Corg unless Ctot was measured instead of calculated.
NO3_UG_G_N Concentration of Nitrate (NO3) in the sample in units of ug/g as N.
NO3_Q Any qualifier information or comments about the NO3 concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; original value and units if not µg/g; etc.
NO3_DL The lowest detectable concentration of Nitrate for this laboratory and this methodology.
NO2_UG_G_N Concentration of Nitrite (NO2) in the sample in units of ug/g as N.
NO2_Q Any qualifier information or comments about the NO2 concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; original value and units if not µg/g; etc.
AVS_MOL_G Concentration of sulfur (as SO2) present that is acid volatile (AVS) in the sample in units of moles/gram..
AVS_Q Any qualifier information or comments about the AVS concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; original value and units if not µg/g; etc.
WATER_WPCT Percent of total wet sample weight that is water, i.e., (total wt-dry wt/wet wt)*100. If porosity (volume fraction) values are given, note units in grams.

General Organics

table in the database

Label Definition
UNIQUE_ID Database ID unique to this specific sample; assigned by USGS; used to link data between tables
PHCTOT_PPM Concentration of measured Total Petroleum Hydrocarbons (PHC) in units of ppm. Do not derive by summation.
PHC_Q Any qualifier information or comments about the PHC concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; concentration given in other units etc.
PHC_D The lowest detectable concentration of PHC for this laboratory and this methodology.
PCBTOT_UGG Concentration of measured total of polychlorinated biphenyls (PCB) in units of µg/g
PCB_Q Any qualifier information or comments about the PCB concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; concentration given in other units etc.
PCB_D The lowest detectable concentration of PCB for this laboratory and this methodology.
DDT_(T)_C Concentration of measured total of DDT compounds in units of µg/g
DDT_(T)_Q Any qualifier information or comments about the DDT concentration; e.g., ""less than"" (< or lt); analytical trouble with this sample; corrections made during VALIDS; indications of poor quality data; concentration given in other units etc.
DDT_(T)_D The lowest detectable concentration of DDT for this laboratory and this methodology.
DDE_(T)_C Concentration of DDE total (DDT degradation product ) in units of parts per billion
DDE_(T)_Q Any qualifier information or comments about DDE total e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DDE_(T)_D The lowest detectable concentration of this compound for this laboratory and methodology
DDD_(T)_C Concentration of DDD (DDT derivative of metabolite) in units of parts per billion
DDD_(T)_Q Any qualifier information or comments about DDD total - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DDD_(T)_D The lowest detectable concentration of this compound for this laboratory and methodology

Specific Organics A (PCBs/Pesticides)

table in the database

Label Definition
UNIQUE_ID Database ID unique to this specific sample; assigned by USGS; used to link data between tables
PCB_8_PPB PCB congener # 8 of 209 possible in units of parts per billion 2,4'-DICHLOROBIPHENYL
PCB_8_Q Qualifier concerning PCB congener #8
PCB_8_D The lowest detectable concentration of PCB congener #8 of 209 for this laboratory and methodology.
PCB_18_PPB PCB congener # 18 of 209 possible in units of parts per billion 2,2',5-TRICHLOROBIPHENYL
PCB_18_Q Qualifier concerning PCB congener #18
PCB_18_D The lowest detectable concentration of PCB congener #18 of 209 for this laboratory and methodology.
PCB_28_PPB PCB congener # 28 of 209 possible in units of parts per billion 2,4,4'-TRICHLOROBIPHENYL
PCB_28_Q Qualifier concerning PCB congener #28
PCB_28_D The lowest detectable concentration of PCB congener #28 of 209 for this laboratory and methodology.
PCB_29_PPB PCB congener # 29 of 209 possible in units of parts per billion 2,4,5-TRICHLOROBIPHENYL
PCB_29_Q Qualifier concerning PCB congener #29
PCB_29_D The lowest detectable concentration of PCB congener #29 of 209 for this laboratory and methodology.
PCB_44_PPB PCB congener # 44 of 209 possible in units of parts per billion 2,2',3,5'-TETRACHLOROBIPHENYL
PCB_44_Q Qualifier concerning PCB congener #44
PCB_44_D The lowest detectable concentration of PCB congener #44 of 209 for this laboratory and methodology.
PCB_52_PPB PCB congener # 52 of 209 possible in units of parts per billion 2,2',5,5'-TETRACHLOROBIPHENYL
PCB_52_Q Qualifier concerning PCB congener #52
PCB_52_D The lowest detectable concentration of PCB congener #52 of 209 for this laboratory and methodology.
PCB_66_PPB PCB congener # 66 of 209 possible in units of parts per billion 2,3',4,4'-TETRACHLOROBIPHENYL
PCB_66_Q Qualifier concerning PCB congener #66
PCB_66_D The lowest detectable concentration of PCB congener #66 of 209 for this laboratory and methodology.
PCB_77_PPB PCB congener # 77/110 of 209 possible in units of parts per billion 3,3',4,4'-TETRACHLOROBIPHENYL
PCB_77_Q Qualifier concerning PCB congener #77/110
PCB_77_D The lowest detectable concentration of PCB congener #77/110 of 209 for this laboratory and methodology.
PCB_87_PPB PCB congener # 87 of 209 possible in units of parts per billion 2,2',3,4,5'-PENTACHLOROBIPHENYL
PCB_87_Q Qualifier concerning PCB congener #87
PCB_87_D The lowest detectable concentration of PCB congener #78 of 209 for this laboratory and methodology.
PCB101_PPB PCB congener # 101 of 209 possible in units of parts per billion 2,2',4,5,5'-PENTACHLOROBIPHENYL
PCB_101_Q Qualifier concerning PCB congener #101
PCB_101_D The lowest detectable concentration of PCB congener #101 of 209 for this laboratory and methodology.
PCB105_PPB PCB congener # 105 of 209 possible in units of parts per billion 2,3,3',4,4'-PENTACHLOROBIPHENYL
PCB_105_Q Qualifier concerning PCB congener #105
PCB_105_D The lowest detectable concentration of PCB congener #105 of 209 for this laboratory and methodology.
PCB118_PPB PCB congener # 118 of 209 possible in units of parts per billion 2,3',4,4',5-PENTACHLOROBIPHENYL
PCB_118_Q Qualifier concerning PCB congener #118
PCB_118_D The lowest detectable concentration of PCB congener #118 of 209 for this laboratory and methodology.
PCB126_PPB PCB congener # 126 of 209 possible in units of parts per billion 3,3',4,4',5-PENTACHLOROBIPHENYL
PCB126_Q Qualifier concerning PCB congener #126
PCB126_D The lowest detectable concentration of PCB congener #126 of 209 for this laboratory and methodology.
PCB128_PPB PCB congener # 128 of 209 possible in units of parts per billion 2,2',3,3',4,4'-HEXACHLOROBIPHENYL
PCB_128_Q Qualifier concerning PCB congener #128
PCB_128_D The lowest detectable concentration of PCB congener #128 of 209 for this laboratory and methodology.
PCB138_PPB PCB congener # 138 of 209 possible in units of parts per billion 2,2',3,4,4',5'-HEXACHLOROBIPHENYL
PCB_138_Q Qualifier concerning PCB congener #138
PCB_138_D The lowest detectable concentration of PCB congener #138 of 209 for this laboratory and methodology.
PCB153_PPB PCB congener # 153 of 209 possible in units of parts per billion 2,2',4,4',5,5'-HEXACHLOROBIPHENYL
PCB_153_Q Qualifier concerning PCB congener #153
PCB_153_D The lowest detectable concentration of PCB congener #153 of 209 for this laboratory and methodology.
PCB170_PPB PCB congener # 170 of 209 possible in units of parts per billion 2,2',3,3',4,4',5-HEPTACHLOROBIPHENYL
PCB_170_Q Qualifier concerning PCB congener #170
PCB_170_D The lowest detectable concentration of PCB congener #170 of 209 for this laboratory and methodology.
PCB180_PPB PCB congener # 180 of 209 possible in units of parts per billion 2,2',3,4,4',5,5'-HEPTACHLOROBIPHENYL
PCB_180_Q Qualifier concerning PCB congener #180
PCB_180_D The lowest detectable concentration of PCB congener #180 of 209 for this laboratory and methodology.
PCB187_PPB PCB congener # 187 of 209 possible in units of parts per billion 2,2',3,4',5,5',6-HEPTACHLOROBIPHENYL
PCB_187_Q Qualifier concerning PCB congener #187
PCB_187_D The lowest detectable concentration of PCB congener #187 of 209 for this laboratory and methodology.
PCB195_PPB PCB congener # 195 of 209 possible in units of parts per billion 2,2',3,3',4,4',5,6-OCTACHLOROBIPHENYL
PCB_195_Q Qualifier concerning PCB congener #195
PCB_195_D The lowest detectable concentration of PCB congener #195 of 209 for this laboratory and methodology.
PCB200_PPB PCB congener # 200 of 209 possible in units of parts per billion
PCB_200_Q Qualifier concerning PCB congener #200
PCB_200_D The lowest detectable concentration of PCB congener #200 of 209 for this laboratory and methodology.
PCB206_PPB PCB congener # 206 of 209 possible in units of parts per billion 2,2',3,3',4,4',5,5',6-NONACHLOROBIPHENYL
PCB_206_Q Qualifier concerning PCB congener #206
PCB_206_D The lowest detectable concentration of PCB congener #206 of 209 for this laboratory and methodology.
PCB209_PPB PCB congener # 209 of 209 possible in units of parts per billion 2,2',3,3',4,4',5,5',6,6'-DECACHLOROBIPHENYL
PCB_209_Q Qualifier concerning PCB congener #209
PCB_209_D The lowest detectable concentration of PCB congener #209 of 209 for this laboratory and methodology.
A1016/1242 PCB in units of parts per billion Arochlor equivalent number 1016/1242; this is the older method of reporting PCB.
A1016_Q Arochlor 1016/1242 qualifier
A1016_D Arochlor 1016/1242 detection limit
AC1021_C arochlor 1021 PCB in units of ppb
AC1021_Q arochlor 1021 PCB qualifier
AC1021_D arochlor 1021 PCB detection limit
AC1232_PPB PCB in units of parts per billion Arochlor equivalent number 1232; this is the older method of reporting PCB.
AC1232_Q Arochlor 1232 qualifier
AC1232_D Arochlor 1232 detection limit
AC1248_PPB PCB in units of parts per billion Arochlor equivalent number 1248; this is the older method of reporting PCB.
AC1248_Q Arochlor 1248 qualifier
AC1248_D Arochlor 1248 detection limit
AC1254_PPB PCB in units of parts per billion Arochlor equivalent number 1254; this is the older method of reporting PCB.
AC1254_Q Arochlor 1254 qualifier
AC1254_D Arochlor 1254 detection limit
AC1260_PPB PCB in units of parts per billion Arochlor equivalent number 1260; this is the older method of reporting PCB.
AC1260_Q Arochlor 1260 qualifier
AC1260_D Arochlor 1260 detection limit
TOXPHENE_C Toxaphene (pesticide) in units of parts per billion
TOXPHENE_Q Any qualifier information or comments about toxaphene- e.g...less than(<); analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
TOXPHENE_D The lowest detectable concentration of this compound for this laboratory and methodology
DDT_4,4'_C DDT 4,4' parts per billion = p,p DDT in units of parts per billion
DDT_4,4'_Q Any qualifier information or comments about DDT 4,4' - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DDT_4,4'_D The lowest detectable concentration of this compound for this laboratory and methodology
DDT_2,4'_C DDT 2,4 parts per billion = o,p DDT in units of parts per billion
DDT_2,4'_Q Any qualifier information or comments about DDT 2, 4' - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DDT_2,4'_D The lowest detectable concentration of this compound for this laboratory and methodology
DDE_4,4'_C DDE 4,4 isomer in units of parts per billion
DDE_4,4'_Q Any qualifier information or comments about DDE 4, 4' - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DDE_4,4'_D The lowest detectable concentration of this compound for this laboratory and methodology
DDE_2,4'_C DDE 2,4 isomer in units of parts per billion
DDE_2,4'_Q Any qualifier information of comments about DDE 2,4' - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DDE_2,4'_D The lowest detectable concentration of this compound for this laboratory and methodology
DDD_4,4'_C DDD 4,4 isomer in units of parts per billion
DDD_4,4'_Q Any qualifier information or comments about DDD 4,4' - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DDD_4,4'_D The lowest detectable concentration of this compound for this laboratory and methodology
DDD_2,4'_C DDD 2,4 isomer in units of parts per billion
DDD_2,4'_Q Any qualifier information or comments about DDD 2,4' - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DDD_2,4'_D The lowest detectable concentration of this compound for this laboratory and methodology
DDM_C DDM in units of parts per billion
DDM_Q Any qualifier information or comments about DDM - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DDM_D The lowest detectable concentration of this compound for this laboratory and methodology
7CHLR_C Heptachlor (insecticide) in units of parts per billion
7CHLR_Q Any qualifier information or comments about heptachlor - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
7CHLR_D The lowest detectable concentration of this compound for this laboratory and methodology
7CHLR_EPXC Heptachlor epoxide (soil oxidation product, insecticide) in units of parts per billion
7CHLR_EPXQ Any qualifier information or comments about heptachlor epoxide - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
7CHLR_EPXD The lowest detectable concentration of this compound for this laboratory and methodology
6CLBNZ_C Hexachlorobenzene (fungicide) in units of parts per billion
6CLBNZ_Q Any qualifier information of comments about Hexachlorobenzene - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
6CLBNZ_D The lowest detectable concentration of this compound for this laboratory and methodology
ENDRIN_C Endrin(insecticide) in units of parts per billion
ENDRIN_Q Any qualifier information or comments about Endrin - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ENDRIN_D The lowest detectable concentration of this compound for this laboratory and methodology
ENDR_ALD_C Endrin Aldehyde (Endrin oxidation product) in units of parts per billion
ENDR_ALD_Q Any qualifier information or comments about Endrin Aldehyde - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ENDR_ALD_D The lowest detectable concentration of this compound for this laboratory and methodology
ALDRIN_C Aldrin (insecticide) in units of parts per billion
ALDRIN_Q Any qualifier information or comments about Aldrin - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ALDRIN_D The lowest detectable concentration of this compound for this laboratory and methodology
DIELDRN_C Dieldrin (insecticide) in units of parts per billion
DIELDRN_Q Any qualifier information or comments about Dieldrin - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DIELDRN_D The lowest detectable concentration of this compound for this laboratory and methodology
CLRDNE(T)C Chlordane total (pesticide) in units of parts per billion
CLRDNE(T)D The lowest detectable concentration of this compound for this laboratory and methodology
CLRDNE(T)Q Any qualifier information or comments about Chlordane total - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
CLRDNE(A)C Chlordane (alpha)=cis-chlordane in units of parts per billion
CLRDNE(A)D The lowest detectable concentration of this compound for this laboratory and methodology
CLRDNE(A)Q Any qualifier information or comments about Chlordane (alpha) - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
CLRDNE(G)C Chlordane gamma (pesticide) in units of parts per billion
CLRDNE(G)D The lowest detectable concentration of this compound for this laboratory and methodology
CLRDNE(G)Q Any qualifier information or comments about Chlordane gamma - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
T-9CHLOR_C Trans -nonachlor in units of parts per billion
T-9CHLOR_D The lowest detectable concentration of this compound for this laboratory and methodology
T-9CHLOR_Q Any qualifier information or comments about Trans -nonachlor - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
OXYCLRDN_C Oxychlordane, pesticide in units of parts per billion
OXYCLRDN_Q Any qualifier information or comments about Oxychlordane - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
OXYCLRDN_D The lowest detectable concentration of this compound for this laboratory and methodology
C-9CHLORC CIS-Nonachlor in units of parts per billion
C-9CHLORQ Any qualifier information or comments about CIS-Nonachlor - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C-9CHLORD The lowest detectable concentration of this compound for this laboratory and methodology
NONACHL_C Nonachlor in units of parts per billion
NONACHL_Q Any qualifier information or comments about Nonachlor - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
MIREX_C Mirex (pesticide) in units of parts per billion
MIREX_Q Any qualifier information of comments about mirex - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
MIREX_D The lowest detectable concentration of this compound for this laboratory and methodology
METHOXYCLC Methoxychlor (pesticide) in units of parts per billion
METHOXYCLQ Any qualifier information or comments about Methoxychlor - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
METHOXYCLD The lowest detectable concentration of this compound for this laboratory and methodology
BHC(A)_C BHC (alpha isomer) - hexachlorocyclohexane, in units of parts per billion
BHC(A)_Q Any qualifier information or comments about BHC (alpha isomer) - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BHC(A)_D The lowest detectable concentration of this compound for this laboratory and methodology
BHC(ß)_C BHC (beta isomer) hexachlorocyclohexane in units of parts per billion
BHC(ß)_Q Any qualifier information or comments about BHC (beta isomer) - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BHC(ß)_D The lowest detectable concentration of this compound for this laboratory and methodology
BHC(D)_C BHC (delta isomer) hexachlorocyclohexane in units of parts per billion
BHC(D)_Q Any qualifier information or comments about BHC (delta isomer) - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BHC(D)_D The lowest detectable concentration of this compound for this laboratory and methodology
LINDANE_C BHC (gamma isomer) hexachlorocyclohexanein units of parts per billion; Lindane is also known as BHC (gamma)
LINDANE_Q Any qualifier information or comments about Lindane (BHC gamma) - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
LINDANE_D The lowest detectable concentration of this compound for this laboratory and methodology
ENDOSUL2_C Endosulfan II (Endosulfan isomer) in units of parts per billion
ENDOSUL2_Q Any qualifier information or comments about Endosulfan II - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ENDOSUL2_D The lowest detectable concentration of this compound for this laboratory and methodology
ENDOS_SU_C Endosulfan sulfate (endosulfan oxidation product) in units of parts per billion
ENDOS_SU_Q Any qualifier information or comments about Endosulfan sulfate - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ENDOS_SU_D The lowest detectable concentration of this compound for this laboratory and methodology
ENDOSUL1_C Endosulfan I (endosulfan isomer) in units of parts per billion
ENDOSUL1_Q Any qualifier information or comments about Endosulfan I - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ENDOSUL1_D The lowest detectable concentration of this compound for this laboratory and methodology
ATRAZINE_C Atrazine in units of parts per billion
ATRAZINE_Q Any qualifier information or comments about Atrazine - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ATRAZINE_D The lowest detectable concentration of this compound for this laboratory and methodology
SIMAZINE_C Simazine in units of parts per billion
SIMAZINE_Q Any qualifier information or comments about Simazine - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
SIMAZINE_D The lowest detectable concentration of this compound for this laboratory and methodology
ALACHLOR_C Alachlor in units of parts per billion
ALACHLOR_Q Any qualifier information or comments about Alachlor - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ALACHLOR_D The lowest detectable concentration of this compound for this laboratory and methodology
MBT_C concentration of monobutyl tin (anti - fouling metal organic), in units of parts per billion
MBT_Q Any qualifier information or comments about monobutyl tin - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
MBT_D The lowest detectable concentration of this compound for this laboratory and methodology
DBT_C concentration of Dibutyl tin (anti - fouling metal organic compound), in units of parts per billion
DBT_Q Any qualifier information or comments about Dibutyl tin - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DBT_D The lowest detectable concentration of this compound for this laboratory and methodology
TBT_C concentration of Tributyl tin (anti - fouling metal organic compound), in units of parts per billion
TBT_Q Any qualifier information or comments about Tributyl tin - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
TBT_D The lowest detectable concentration of this compound for this laboratory and methodology

Specific Organics B (PAHs)

table in the database

Label Definition
UNIQUE_ID Database ID unique to this specific sample; assigned by USGS; used to link data between tables
BENZNE_C parent structure of aromatic ring hydrocarbon class (PAH), benzene in units of parts per billion
BENZNE_Q Any qualifier information or comments about benzene - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BENZNE_D The lowest detectable concentration of this compound for this laboratory and methodology
2BZTPN_C dibenzothiophene in units of parts per billion
2BZTPN_Q Any qualifier information or comments about dibenzothiophene - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2BZTPN_D The lowest detectable concentration of this compound for this laboratory and methodology
2BZTPN(T)C dibenzothiophene (diphenylene sulfide) total of C0, C1, C2, and C3 in units of parts per billion
2BZTPN(T)Q Any qualifier information or comments about dibenzothiophene total - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2BZTPN(T)D The lowest detectable concentration of this compound for this laboratory and methodology
A2BZTP(T)C alkyl dibenzothiophene (total) in units of parts per billion
A2BZTP(T)Q qualifier information about alkyl dibenzothiophene (total)
A2BZTP(T)D The lowest detectable concentration of this compound for this laboratory and methodology
C1DIBZTPNC dibenzothiophene (C1) in units of parts per billion
C1DIBZTPNQ Any qualifier information or comments about dibenzothiophene (C1) - e.g....less than (<); analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C1DIBZTPND The lowest detectable concentration of this compound for this laboratory and methodology
C2DIBZTPNC dibenzothiophene (C2) in units of parts per billion (C2DBT mass 212)
C2DIBZTPNQ Any qualifier information or comments about dibenzothiophene (C2) - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C2DIBZTPND The lowest detectable concentration of this compound for this laboratory and methodology
C3DIBZTPNC dibenzothiophene (C3) in units of parts per billion (C3DBT mass 226)
C3DIBZTPNQ Any qualifier information or comments about dibenzothiophene (C3) - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C3DIBZTPND The lowest detectable concentration of this compound for this laboratory and methodology
NBTHIOPH_C naphthobenzothiophene in units of parts per billion
NBTHIOPH_Q naphthobenzothiophene qualifier
NBTHIOPH_D naphthobenzothiophene detect limit
AL_NBTHI_C alkyl naphthobenzothiophene in units of parts per billion
AL_NBTHI_Q alkyl naphthobenzothiophene qualifier
AL_NBTHI_D alkyl naphthobenzothiophene detection limit
2BZFRN(T)C dibenzofuran (total) = diphenylene oxide (PAH) in units of parts per billion
2BNZFRN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2BNZFRN_D The lowest detectable concentration of this compound for this laboratory and methodology
NAPHTHLN_C measured napthalene (not substituted) in units of parts per billion
NAPHTHLN_Q Any qualifier information or comments about Naphthalene - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
NAPHTHLN_D The lowest detectable concentration of this compound for this laboratory and methodology
AKNAPHTH_C alkyl naphthalenes in parts per billion
AKNAPHTH_Q alkyl naphthalenes qualifier
AKNAPHTH_D alkyl naphthalenes detection limit
C1NPHTLN_C 1-methyl napthalene (mass 142) and 2-methyl napthalene in units of parts per billion
C1NPHTLN_Q Any qualifier information or comments about Naphthalenes (C1) - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C1NPHTLN_D The lowest detectable concentration of this compound for this laboratory and methodology
1-MTYLNAPC 1- methyl -naphthalene (PAH) in units of parts per billion, a subcomponent of C1 Naphthalene
1-MTYLNAPQ Any qualifier information or comments about 1-Methyl-Napthalene - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
1-MTYLNAPD The lowest detectable concentration of this compound for this laboratory and methodology
2-MTYLNAPC 2- methyl -naphthalene (PAH) in units of parts per billion, a subcomponent of C2 Naphthalene
2-MTYLNAPQ Any qualifier information or comments about 2-Methyl-Napthalene - e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2-MTYLNAPD The lowest detectable concentration of this compound for this laboratory and methodology
C2NPHTLN_C Naphthalenes (C2); 2,6-dimethyl napthalene (mass 156) in ppb
C2NPHTLN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C2NPHTLN_D The lowest detectable concentration of this compound for this laboratory and methodology
C3NPHTLN_C Naphthalenes (C3); 2,3,5-trimethyl napthalene (mass 170) =1,6,7-trimethyl napthalene
C3NPHTLN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C3NPHTLN_D The lowest detectable concentration of this compound for this laboratory and methodology
C4NPHTLN_C Naphthalenes (C4) (mass 184) in ppb
C4NPHTLN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C4NPHTLN_D The lowest detectable concentration of this compound for this laboratory and methodology
BIPHENYL_C biphenyl (mass 154 also) in units of parts per billion
BIPHENYL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BIPHENYL_D The lowest detectable concentration of this compound for this laboratory and methodology
ALKBIPH_C Alkyl biphenyls in units of parts per billion
ALKBIPH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ALKBIPH_D The lowest detectable concentration of this compound for this laboratory and methodology
ACNPHTHN_C Acenaphthene (mass 154 also) in units of parts per billion
ACNPHTHN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ACNPHTHN_D The lowest detectable concentration of this compound for this laboratory and methodology
ACNPHTYL_C Acenaphthylene (mass 152) in units of parts per billion
ACNPHTYL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ACNPHTYL_D The lowest detectable concentration of this compound for this laboratory and methodology
FLUORENE_C Fluorene (mass 166) in units of parts per billion
FLUORENE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
FLUORENE_D The lowest detectable concentration of this compound for this laboratory and methodology
ALFLUOR_C Alkyl fluorenes in units of parts per billion
ALFLUOR_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ALFLUOR_D The lowest detectable concentration of this compound for this laboratory and methodology
C1FLORNE_C Fluorene C1, (mutagenic) in units of parts per billion
C1FLORNE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C1FLORNE_D The lowest detectable concentration of this compound for this laboratory and methodology
C2FLORNE_C Fluorene C2, (mutagenic) in units of parts per billion
C2FLORNE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C2FLORNE_D The lowest detectable concentration of this compound for this laboratory and methodology
C3FLORNE_C Fluorene C3, (mutagenic) in units of parts per billion
C3FLORNE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C3FLORNE_D The lowest detectable concentration of this compound for this laboratory and methodology
PHNANTHR_C Phenanthrene (mass 178) in units of parts per billion
PHNANTHR_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
PHNANTHR_D The lowest detectable concentration of this compound for this laboratory and methodology
1-MT-PHE_C Phenanthrene (C1) =1-Methyl Phenanthrene (mass 192) in ppb
1-MT-PHE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
1-MT-PHE_D The lowest detectable concentration of this compound for this laboratory and methodology
C1PHENAN_C C1-Phenanthrenes in parts per billion
C1PHENAN_Q C1-Phenanthrenes qualifier
C1PHENAN_D The lowest detectable concentration of this compound for this laboratory and methodology
C2PHNANT_C C2 homolog of phenanthrene (anthracene) (PAH) in units of parts per billion
C2PHNANT_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C2PHNANT_D The lowest detectable concentration of this compound for this laboratory and methodology
C3PHNANT_C C3 homolog of phenanthrene (anthracene) in units of parts per billion
C3PHNANT_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C3PHNANT_D The lowest detectable concentration of this compound for this laboratory and methodology
C4PHNANT_C C4 homolog of phenanthrene (anthracene) in units of parts per billion
C4PHNANT_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C4PHNANT_D The lowest detectable concentration of this compound for this laboratory and methodology
ALK_PHEN_C Alkyl phenanthrenes in units of parts per billion
ALK_PHEN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ALK_PHEN_D The lowest detectable concentration of this compound for this laboratory and methodology
ANTHRACN_C Anthracene (mass 178) in parts per billion
ANTHRACN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ANTHRACN_D The lowest detectable concentration of this compound for this laboratory and methodology
BZ(A)ANT_C Anthracene (C1)=Benz anthracene = benzoanthracene=Benzo(a) anthracene (mass 228) in ppb
BZ(A)ANT_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BZ(A)ANT_D The lowest detectable concentration of this compound for this laboratory and methodology
2(AH)ANT_C Anthracene (C1) = dibenz (a,h) anthracene (mass 278) = Dibenzo Anthracene in ppb
2(AH)ANT_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2(AH)ANT_D The lowest detectable concentration of this compound for this laboratory and methodology
PYRENE_C Pyrene (mass 202) in parts per billion
PYRENE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
PYRENE_D The lowest detectable concentration of this compound for this laboratory and methodology
BZ(A)PYR_C Benzo (a) pyrene (mass 252 also) in ppb
BZ(A)PYR_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BZ(A)PYR_D The lowest detectable concentration of this compound for this laboratory and methodology
BZ(E)PYR_C Benzo (e) pyrene (mass 252 also) in ppb
BZ(E)PYR_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BZ(E)PYR_D The lowest detectable concentration of this compound for this laboratory and methodology
BZPYRISO_C Benzo pyrene isomers in units of parts per billion
BZPYRISO_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BZPYRISO_D The lowest detectable concentration of this compound for this laboratory and methodology
IN(123)PYC Indeno(123)Pyrene = Indeno(1,2,3-cd) pyrene
IN(123)PYQ Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
IN(123)PYD The lowest detectable concentration of this compound for this laboratory and methodology
ALK_PYR_C Alkyl pyrenes in units of parts per billion
ALK_PYR_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ALK_PYR_D The lowest detectable concentration of this compound for this laboratory and methodology
FLORNTHN_C Fluoranthene (mass 202) in ppb
FLORNTHN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
FLORNTHN_D The lowest detectable concentration of this compound for this laboratory and methodology
C1FLRNTHNC C1-Fluoranthene= benzofluoranthene=measured concentration of both benzo (b) and benzo (k) fluoranthene
C1FLRNTHNQ Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
C1FLRNTHND The lowest detectable concentration of this compound for this laboratory and methodology
BZ(B)FLUOC Benzo (B) fluoranthene in units of parts per billion
BZ(B)FLUOQ Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BZ(B)FLUOD The lowest detectable concentration of this compound for this laboratory and methodology
BZ(K)FLUOC Benzo (K) fluoranthene in units of parts per billion
BZ(K)FLUOQ Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BZ(K)FLUOD The lowest detectable concentration of this compound for this laboratory and methodology
CHRYSENE_C Chrysene (mass 228) in units of parts per billion
CHRYSENE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
CHRYSENE_D The lowest detectable concentration of this compound for this laboratory and methodology
CHRYS_C1_C Chrysene (C1) in units of parts per billion
CHRYS_C1_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
CHRYS_C1_D The lowest detectable concentration of this compound for this laboratory and methodology
CHRYS_C2_C Chrysene (C2) in units of parts per billion
CHRYS_C2_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
CHRYS_C2_D The lowest detectable concentration of this compound for this laboratory and methodology
CHRYS_C3_C Chrysene (C3) in units of parts per billion
CHRYS_C3_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
CHRYS_C3_D The lowest detectable concentration of this compound for this laboratory and methodology
CHRYS_C4_C Chrysene (C4) in units of parts per billion
CHRYS_C4_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
CHRYS_C4_D The lowest detectable concentration of this compound for this laboratory and methodology
CHRY_ISO_C Chrysene isomers in units of parts per billion
CHRY_ISO_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
CHRY_ISO_D The lowest detectable concentration of this compound for this laboratory and methodology
ALCH_ISO_C Alkyl chrysene isomers in units of parts per billion
ALCH_ISO_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ALCH_ISO_D The lowest detectable concentration of this compound for this laboratory and methodology
AL_CHRYS_C Alkyl chrysene in units of parts per billion
AL_CHRYS_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
AL_CHRYS_D The lowest detectable concentration of this compound for this laboratory and methodology
PERYLENE_C Perylene (mass 252) (PAH) in units of parts per billion
PERYLENE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
PERYLENE_D The lowest detectable concentration of this compound for this laboratory and methodology
BNZ(G)PYLC benzo (g) perylene (PAH) in units of parts per billion
BZ(G)PYL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BZ(G)PYL_D The lowest detectable concentration of this compound for this laboratory and methodology
B(GHI)PYLC benzo (g,h,i) perylene (mass 276) (PAH) in units of parts per billion
B(GHI)PYLQ Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
B(GHI)PYLD The lowest detectable concentration of this compound for this laboratory and methodology
235TMTNAPC 2,3,5-Trimethylnaphthalene ppb
235TMTNAPQ 2,3,5-Trimethylnaphthalene qualifier
235TMTNAPD 2,3,5-Trimethylnaphthalene detection limit
26DMTNAP_C 2,6-Dimethylnaphthalene ppb
26DMTNAP_Q 2,6-Dimethylnaphthalene qualifier
26DMTNAP_D 2,6-Dimethylnaphthalene detection limit
C1FLRPYR_C C1-Fluoranthene Pyrene ppb
C1FLRPYR_Q C1-Fluoranthene Pyrene qualifier
C1FLRPYR_D C1-Fluoranthene Pyrene detection limit

Specific Organics C (Aliphatic Hydrocarbons)

table in the database

Label Definition
UNIQUE_ID Database ID unique to this specific sample; assigned by USGS; used to link data between tables
N_DECANE_C N-decane in units of parts per billion
N_DECANE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_DECANE_D The lowest detectable concentration of this compound for this laboratory and methodology
N_DOCOSN_C N-docosane in units of parts per billion
N_DOCOSN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_DOCOSN_D The lowest detectable concentration of this compound for this laboratory and methodology
N_DODECA_C N-dodecane in units of parts per billion
N_DODECA_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_DODECA_D The lowest detectable concentration of this compound for this laboratory and methodology
N_DOTRCT_C N-dotriacontane in units of parts per billion
N_DOTRCT_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_DOTRCT_D The lowest detectable concentration of this compound for this laboratory and methodology
N_EICOSN_C N-eicosane in units of parts per billion
N_EICOSN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_EICOSN_D The lowest detectable concentration of this compound for this laboratory and methodology
N_HENESN_C N-heneicosane in units of parts per billion
N_HENESN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_HENESN_D The lowest detectable concentration of this compound for this laboratory and methodology
N_HENTCT_C N-hentriacontane in units of parts per billion
N_HENTCT_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_HENTCT_D The lowest detectable concentration of this compound for this laboratory and methodology
N_HEPADC_C N-heptadecane in units of parts per billion
N_HEPADC_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_HEPADC_D The lowest detectable concentration of this compound for this laboratory and methodology
N_HEPTSN_C N-heptacosane in units of parts per billion
N_HEPTSN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_HEPTSN_D The lowest detectable concentration of this compound for this laboratory and methodology
N_HEXADC_C N-hexadecane in units of parts per billion
N_HEXADC_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_HEXADC_D The lowest detectable concentration of this compound for this laboratory and methodology
N_HEXASN_C N-hexacosane in units of parts per billion
N_HEXASN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_HEXASN_D The lowest detectable concentration of this compound for this laboratory and methodology
N_NONADC_C N-nonadecane in units of parts per billion
N_NONADC_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_NONADC_D The lowest detectable concentration of this compound for this laboratory and methodology
N_NONASN_C N-nonacosane in units of parts per billion
N_NONASN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_NONASN_D The lowest detectable concentration of this compound for this laboratory and methodology
N_OCTADC_C N-octadecane in units of parts per billion
N_OCTADC_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_OCTADC_D The lowest detectable concentration of this compound for this laboratory and methodology
N_OCTASN_C N-octacosane in units of parts per billion
N_OCTASN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_OCTASN_D The lowest detectable concentration of this compound for this laboratory and methodology
N_PENTDC_C N-pentadecane in units of parts per billion
N_PENTDC_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_PENTDC_D The lowest detectable concentration of this compound for this laboratory and methodology
N_PENTSN_C N-pentacosane in units of parts per billion
N_PENTSN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_PENTSN_D The lowest detectable concentration of this compound for this laboratory and methodology
N_TETRCT_C N-tetratriacontane in units of parts per billion
N_TETRCT_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_TETRCT_D The lowest detectable concentration of this compound for this laboratory and methodology
N_TETRDC_C N-tetradecane in units of parts per billion
N_TETRDC_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_TETRDC_D The lowest detectable concentration of this compound for this laboratory and methodology
N_TETRSN_C N-tetracosane in units of parts per billion
N_TETRSN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_TETRSN_D The lowest detectable concentration of this compound for this laboratory and methodology
N_TRIACT_C N-triacontane in units of parts per billion
N_TRIACT_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_TRIACT_D The lowest detectable concentration of this compound for this laboratory and methodology
N_TRICSN_C N-tricosane in units of parts per billion
N_TRICSN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_TRICSN_D The lowest detectable concentration of this compound for this laboratory and methodology
N_TRIDC_C N-tridecane in units of parts per billion
N_TRIDC_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_TRIDC_D The lowest detectable concentration of this compound for this laboratory and methodology
N_TRITCT_C N-tritriacontane in units of parts per billion
N_TRITCT_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_TRITCT_D The lowest detectable concentration of this compound for this laboratory and methodology
N_UNDECA_C N_undecane in units of parts per billion
N_UNDECA_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N_UNDECA_D The lowest detectable concentration of this compound for this laboratory and methodology

Specific Organics D (Miscellaneous)

table in the database

Label Definition
UNIQUE_ID Database ID unique to this specific sample; assigned by USGS; used to link data between tables
CARBAZOL_C carbazole in units of parts per billion
CARBAZOL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
CARBAZOL_D The lowest detectable concentration of this compound for this laboratory and methodology
4-CLRANL_C 4-chloroaniline in units of parts per billion
4-CLRANL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
4-CLRANL_D The lowest detectable concentration of this compound for this laboratory and methodology
2-CLRNAP_C 2-chloronaphthalene in units of parts per billion
2-CLRNAP_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2-CLRNAP_D The lowest detectable concentration of this compound for this laboratory and methodology
2-CLRPHN_C 2-chlorophenol in parts per billion
2-CLRPHN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2-CLRPHN_D The lowest detectable concentration of this compound for this laboratory and methodology
4-CLRPPE_C 4-chlorophenylphenylether in parts per billion
4-CLRPPE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
4-CLRPPE_D The lowest detectable concentration of this compound for this laboratory and methodology
4CL3MTPH_C 4chloro 3methyl phenol in parts per billion
4CL3MTPH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
4CL3MTPH_D The lowest detectable concentration of this compound for this laboratory and methodology
24-2CLPH_C 2,4-dichlorophenol in parts per billion
24-2CLPH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
24-2CLPH_D The lowest detectable concentration of this compound for this laboratory and methodology
24-2MTPH_C 2,4-dimethylphenol in parts per billion
24-2MTPH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
24-2MTPH_D The lowest detectable concentration of this compound for this laboratory and methodology
2MTHPHTH_C dimethyl phthalate in parts per billion
2MTHPHTH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2MTHPHTH_D The lowest detectable concentration of this compound for this laboratory and methodology
24-2NTPH_C 2,4-dinitrophenol in parts per billion
24-2NTPH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
24-2NTPH_D The lowest detectable concentration of this compound for this laboratory and methodology
24-2NTOL_C 2,4-dinitrotoluene in parts per billion
24-2NTOL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
24-2NTOL_D The lowest detectable concentration of this compound for this laboratory and methodology
26-2NTOL_C 2,6-dinitrotoluene in parts per billion
26-2NTOL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
26-2NTOL_D The lowest detectable concentration of this compound for this laboratory and methodology
2M46DNPH_C 2methyl 4,6-dinitrophenol in parts per billion
2M46DNPH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2M46DNPH_D The lowest detectable concentration of this compound for this laboratory and methodology
2N-OCTP_C di-n-octyl phthalate in parts per billion
2N-OCTP_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2N-OCTP_D The lowest detectable concentration of this compound for this laboratory and methodology
2N-BTLP_C di-n-butyl phthalate in parts per billion
2N-BTLP_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2N-BTLP_D The lowest detectable concentration of this compound for this laboratory and methodology
6CLCYPEN_C hexachlorocyclopentadiene in parts per billion
6CLCYPEN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
6CLCYPEN_D The lowest detectable concentration of this compound for this laboratory and methodology
6CLRETH_C hexachloroethane in parts per billion
6CLRETH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
6CLRETH_D The lowest detectable concentration of this compound for this laboratory and methodology
2-MTHPHN_C 2-methylphenol in parts per billion
2-MTHPHN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2-MTHPHN_D The lowest detectable concentration of this compound for this laboratory and methodology
4-MTHPHN_C 4-methylphenol in parts per billion
4-MTHPHN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
4-MTHPHN_D The lowest detectable concentration of this compound for this laboratory and methodology
2-NTRANL_C 2-nitro aniline in parts per billion
2-NTRANL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2-NTRANL_D The lowest detectable concentration of this compound for this laboratory and methodology
3-NTRANL_C 3-nitro aniline in parts per billion
3-NTRANL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
3-NTRANL_D The lowest detectable concentration of this compound for this laboratory and methodology
4-NTRANL_C 4-nitro aniline in parts per billion
4-NTRANL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
4-NTRANL_D The lowest detectable concentration of this compound for this laboratory and methodology
NTRBNZ_C nitrobenzene in parts per billion
NTRBNZ_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
NTRBNZ_D The lowest detectable concentration of this compound for this laboratory and methodology
2-NTRPHN_C 2-nitrophenol in parts per billion
2-NTRPHN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
2-NTRPHN_D The lowest detectable concentration of this compound for this laboratory and methodology
4-NTRPHN_C 4-nitrophenol in parts per billion
4-NTRPHN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
4-NTRPHN_D The lowest detectable concentration of this compound for this laboratory and methodology
N-NDPHA_C n-nitrosodiphenylamine in parts per billion
N-NDPHA_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N-NDPHA_D The lowest detectable concentration of this compound for this laboratory and methodology
N-NDNPRA_C n-nitrosodi-n-propylamine in parts per billion
N-NDNPRA_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
N-NDNPRA_D The lowest detectable concentration of this compound for this laboratory and methodology
5CLRPHN_C pentachlorophenol in parts per billion
5CLRPHN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
5CLRPHN_D The lowest detectable concentration of this compound for this laboratory and methodology
PHENOL_C phenol (C6H5OH) in parts per billion
PHENOL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
PHENOL_D The lowest detectable concentration of this compound for this laboratory and methodology
PYRIDINE_C pyridine in parts per billion
PYRIDINE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
PYRIDINE_D The lowest detectable concentration of this compound for this laboratory and methodology
124TCLBZ_C 1,2,4-trichlorobenzene in parts per billion
124TCLBZ_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
124TCLBZ_D The lowest detectable concentration of this compound for this laboratory and methodology
245TCLPH_C 2,4,5-trichlorophenol in parts per billion
245TCLPH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
245TCLPH_D The lowest detectable concentration of this compound for this laboratory and methodology
246TCLPH_C 2,4,6-trichlorophenol in parts per billion
246TCLPH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
246TCLPH_D The lowest detectable concentration of this compound for this laboratory and methodology
ENDR_KET_C endrin ketone in parts per billion
ENDR_KET_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ENDR_KET_D The lowest detectable concentration of this compound for this laboratory and methodology
CARBFNTH_C Carbofenothion in units of parts per billion
CARBFNTH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
CARBFNTH_D The lowest detectable concentration of this compound for this laboratory and methodology
CLRPYRFS_C Chlorpyrifos in units of parts per billion
CLRPYRFS_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
CLRPYRFS_D The lowest detectable concentration of this compound for this laboratory and methodology
DIAZINON_C Diazinon in units of parts per billion
DIAZINON_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DIAZINON_D The lowest detectable concentration of this compound for this laboratory and methodology
DICOFOL_C Dicofol in units of parts per billion
DICOFOL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DICOFOL_D The lowest detectable concentration of this compound for this laboratory and methodology
DISULFOT_C Disulfoton in units of parts per billion
DISULFOT_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DISULFOT_D The lowest detectable concentration of this compound for this laboratory and methodology
ETHION_C Ethion in units of parts per billion
ETHION_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ETHION_D The lowest detectable concentration of this compound for this laboratory and methodology
OXYFLRFN_C Oxyfluorfen in units of parts per billion
OXYFLRFN_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
OXYFLRFN_D The lowest detectable concentration of this compound for this laboratory and methodology
PHYTANE_C Phytane in units of parts per billion
PHYTANE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
PHYTANE_D The lowest detectable concentration of this compound for this laboratory and methodology
PRISTANE_C Pristane in units of parts per billion
PRISTANE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
PRISTANE_D The lowest detectable concentration of this compound for this laboratory and methodology
TERBUFOS_C Terbufos in units of parts per billion
TERBUFOS_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
TERBUFOS_D The lowest detectable concentration of this compound for this laboratory and methodology
BCEOM_C Bis (2-chloroethoxy) methane in parts per billion
BCEOM_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BCEOM_D The lowest detectable concentration of this compound for this laboratory and methodology
BCEE_C Bis (2-chloroethyl) ether in parts per billion
BCEE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BCEE_D The lowest detectable concentration of this compound for this laboratory and methodology
B2CIE_C Bis (2-chloroisopropyl) ether in parts per billion
B2CIE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
B2CIE_D The lowest detectable concentration of this compound for this laboratory and methodology
TBRETHYL_C tribromoethylene in parts per billion
TBRETHYL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
TBRETHYL_D The lowest detectable concentration of this compound for this laboratory and methodology
4BPPE_C 4 bromophenyl phenyl ether in parts per billion
4BPPE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
4BPPE_D The lowest detectable concentration of this compound for this laboratory and methodology
ISOPHOR_C isophorone in parts per billion
ISOPHOR_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
ISOPHOR_D The lowest detectable concentration of this compound for this laboratory and methodology
BUTBNZPHTC butylbenzyl phthalate
BUTBNZPHTQ Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BUTBNZPHTD The lowest detectable concentration of this compound for this laboratory and methodology
DCBENZNE_C dichlorobenzene in parts per billion
DCBENZNE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DCBENZNE_D The lowest detectable concentration of this compound for this laboratory and methodology
12-2CLBZ_C 1,2-dichlorobenzene in parts per billion
12-2CLBZ_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
12-2CLBZ_D The lowest detectable concentration of this compound for this laboratory and methodology
13-2CLBZ_C 1,3-dichlorobenzene in parts per billion
13-2CLBZ_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
13-2CLBZ_D The lowest detectable concentration of this compound for this laboratory and methodology
14-2CLBZ_C 1,4-dichlorobenzene in parts per billion
14-2CLBZ_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
14-2CLBZ_D The lowest detectable concentration of this compound for this laboratory and methodology
BENZDINE_C Benzidine in parts per billion
BENZDINE_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BENZDINE_D The lowest detectable concentration of this compound for this laboratory and methodology
33-2CLBZDC 3,3-dichlorobenzidine in parts per billion
33-2CLBZDQ Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
33-2CLBZDD The lowest detectable concentration of this compound for this laboratory and methodology
BENZACID_C Benzoic acid in parts per billion
BENZACID_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BENZACID_D The lowest detectable concentration of this compound for this laboratory and methodology
BENZALCO_C Benzyl-alcohol in parts per billion
BENZALCO_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
BENZALCO_D The lowest detectable concentration of this compound for this laboratory and methodology
DIETH_PH_C diethyl phthalate in parts per billion
DIETH_PH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
DIETH_PH_D The lowest detectable concentration of this compound for this laboratory and methodology
B2E_PHTH_C bis(2-ethylhexyl)phthalate in parts per billion
B2E_PHTH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
B2E_PHTH_D The lowest detectable concentration of this compound for this laboratory and methodology
OTH_PHTH_C other phthalate in parts per billion
OTH_PHTH_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
OTH_PHTH_D The lowest detectable concentration of this compound for this laboratory and methodology
PERYUL_C peryulene in parts per billion
PERYUL_Q Any qualifier information or comments e.g....less than (<) analytical problems; corrections made during VALIDS; indications of poor quality data, etc.
PERYUL_D The lowest detectable concentration of this compound for this laboratory and methodology

Grain Size Data

table in the database

Label Definition
UNIQUE_ID Database ID unique to this specific sample; assigned by USGS; used to link data between tables
METHOD_FI Method used in analysis of fine fraction
METHOD_CO Method used in analysis of coarse fraction
SAND_PCT Sand content in percent dry weight of sample (particles with nominal diameters less than 2 mm but greater than or equal to 0.0625 mm; 0 through 4 phi)
SILT_PCT Silt content in percent dry weight of the sample (particles with nominal diameters less than 0.0625 mm but greater than or equal to 0.004 mm; 5 through 8 phi, inclusive)
CLAY_PCT Clay content in percent dry weight of the sample (particles with nominal diameters less than 0.004 mm; 9 phi and smaller)
FINES_SIL Percent dry weight reported in both the silt and clay fractions (i.e. silt plus clay)
TEXT_Q The designation ""W"" in quality-control fields placed adjacent to data fields warns that the data in question appear to show unresolved anomalies.
MEDIAN Median grain size (middle point in the grain-size distribution) in phi units; also = 50% quartile of the cumulative weight frequency
MEAN Mean (average) grain size in phi units
Q1_PHI The 25% quartile of the cumulative weight frequency of the sediment grain diameters (in phi units).
Q3_PHI The 75% quartile of the cumulative weight frequency of the sediment grain diameters (in phi units).
QUARDVTN The Phi quartile deviation; calculated as (Phi 75 - Phi 25)/2.
STDEV_SORT Standard deviation (root mean square of the deviations) of grain-size distribution in phi units
SKEWNESS Skewness (deviation from symmetrical form) of grain-size distribution in phi units
KURTOSIS Kurtosis (degree of curvature near the mode) of grain size distribution in phi units
CLASS_1_DE Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add Cum. amt. passing (or retained)'
CLASS_1_% Amount (weight percent) for given class.
CLASS_2_DE Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add ""Cuml. amt. passing (or retained)"".
CLASS_2_% Amount (weight percent) for given class.
CLASS_3_DE Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add ""Cuml. amt. passing (or retained)"".
CLASS_3_% Amount (weight percent) for given class.
CLASS_4_DE Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add ""Cuml. amt. passing (or retained)"".
CLASS_4_% Amount (weight percent) for given class.
CLASS_5_DE Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add ""Cuml. amt. passing (or retained)"".
CLASS_5_% Amount (weight percent) for given class.
CLASS_6_DE Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add ""Cuml. amt. passing (or retained)"".
CLASS_6_% Amount (weight percent) for given class.
CLASS_7_DE Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add ""Cuml. amt. passing (or retained)"".
CLASS_7_% Amount (weight percent) for given class.
CLASS_8_DE Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add ""Cuml. amt. passing (or retained)"".
CLASS_8_% Amount (weight percent) for given class.
CLASS_9_DE Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add ""Cuml. amt. passing (or retained)"".
CLASS_9_% Amount (weight percent) for given class.
CLASS_10_D Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add ""Cuml. amt. passing (or retained)"".
CLASS_10_% Amount (weight percent) for given class.
CLASS_11_D Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add ""Cuml. amt. passing (or retained)"".
CLASS_11_% Amount (weight percent) for given class.
CLASS_12_D Description of size class for data reported in terms such as sieve mesh numbers or in inches, e.g. Class 1 might be ""5 mesh"", or "">3 1/2 inches"". If amount reported is cumulative, add ""Cuml. amt. passing (or retained)"".
CLASS_12_% Amount (weight percent) for given class.
ANALYST Name (usually first initial and last name) of person who performed the grain size or physical properties analysis
COMMENTS_O Any further information about analysis for all or specific parameters in this table
COMMENTS_2 Further comments pertaining to values in grain size table