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Box Plots for OBSP Samples
January 2013* to December 2017

Extreme values have been "clipped" or removed from the plot and designated as such with a blue dot. OBSP Box Plots Organized Numerically by NWQL Schedule(individual lab codes are grouped at the end).
*Due to the size of the dataset, schedules indicated with an astrik have a different start date.
The following abbreviations and formats apply to all of the posted charts:
‹RLA range with expected concentration less than the reporting level
LowerA range with the expected concentration in the lower end of the calibration range
UpperA range with the expected concentration in the upper end of the calibration range
NCount of samples in the specified range
MedMedian recovery of samples in the specified range
FPsigF-pseudosigma of samples in the specified range
MeanAverage recovery of samples in the specified range
StdStandard deviation of samples in the specified range
E CodesPercent of samples in the specified range that are estimated

These plots are presented in percent recovery.
OBSP Box Plots Organized Numerically by NWQL Schedule (individual lab codes are grouped at the end)

The charts and data that you might secure from this U.S. Geological Survey (USGS) web page (identified as "OBSP") have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.
Lab Schedule 1383 - Semivolatile Compounds (base/neutral/acid - BNA), Whole Water Recoverable
Choose an analyte below or click here for all analytes sorted by NWQL parameter code Parameter CAS#
1,2,4-Trichlorobenzene 34551 GCM57 120-82-1
1,2-Dichlorobenzene 34536 GCM57 95-50-1
1,2-Diphenylhydrazine 82626 GCM55 122-66-7
1,3-Dichlorobenzene 34566 GCM57 541-73-1
1,4-Dichlorobenzene 34571 GCM57 106-46-7
2,4,6-Trichlorophenol 34621 GCM56 88-06-2
2,4-Dichlorophenol 34601 GCM56 120-83-2
2,4-Dimethylphenol (Dichlorprop) 34606 GCM56 105-67-9
2,4-Dinitrophenol 34616 GCM56 51-28-5
2,4-Dinitrotoluene 34611 GCM57 121-14-2
2,6-Dinitrotoluene 34626 GCM57 606-20-2
2-Chloronaphthalene 34581A GCM57 91-58-7
2-Chlorophenol 34586 GCM56 95-57-8
2-Nitrophenol 34591 GCM56 88-75-5
3,3'-Dichlorobenzindine 34631 GCM55 91-94-1
4,6-Dinitro-2-methylphenol 34657 GCM56 534-52-1
4-Bromophenylphenylether 34636 GCM57 101-55-3
4-Chloro-3-methylphenol 34452 GCM56 59-50-7
4-Chlorophenyl phenyl ether 34641 GCM57 7005-72-3
4-Nitrophenol 34646 GCM56 100-02-7
Acenaphthene 34205 GCM57 83-32-9
Acenaphthylene 34200 GCM57 208-96-8
Anthracene 34220 GCM57 120-12-7
Benz[a]anthracene 34526 GCM57 56-55-3
Benzidine - Insufficient Data 39120 GCM55 92-87-5
Benzo[a]pyrene 34247 GCM57 50-32-8
Benzo[b]fluoranthene 34230 GCM57 205-99-2
Benzo[ghi]perylene 34521 GCM57 191-24-2
Benzo[k]fluoranthene 34242 GCM57 207-08-9
bis(2-Chloroethoxy)methane 34278 GCM57 111-91-1
Bis(2-Chloroethyl)ether 34273 GCM57 111-44-4
bis(2-chloroisopropyl) ether 34283 GCM57 108-60-1
Bis(2-Ethylhexyl) phthalate 39100 GCM57 117-81-7
Butylbenzyl phthalate 34292 GCM57 85-68-7
Chrysene 34320 GCM57 218-01-9
Dibenz[a,h]anthracene 34556 GCM57 53-70-3
Diethyl phthalate 34336 GCM57 84-66-2
Dimethyl phthalate 34341 GCM57 131-11-3
Di-n-butyl phthalate 39110 GCM57 84-74-2
Di-n-octyl phthalate 34596 GCM57 117-84-0
Fluroranthene 34376 GCM57 206-44-0
Fluorene 34381 GCM57 86-73-7
Hexachlorobenzene 39700 GCM57 118-74-1
Hexachlorobutadiene 39702 GCM57 87-68-3
Hexachlorocyclopentadiene 34386 GCM57 77-47-4
Hexachloroethane 34396 GCM57 67-72-1
Indeno[1,2,3-cd]pyrene 34403 GCM57 193-39-5
Isophorone 34408 GCM57 78-59-1
Naphthalene 34696 GCM57 91-20-3
Nitrobenzene 34447 GCM57 98-95-3
n-Nitrosodimethylamine 34438 GCM57 62-75-9
n-Nitrosodi-n-propylamine 34428 GCM57 621-64-7
N-Nitrosodiphenylamine 34433 GCM57 86-30-6
Pentachlorophenol 39032 GCM56 87-86-5
Penanthrene 34461 GCM57 85-01-8
Phenol 34694 GCM56 108-95-2
Pyrene 34469 GCM57 129-00-0
*Lab Schedule 1433 - Waste Water Compounds by GCMS, Filtered
Choose an analyte below or click here for all analytes sorted by NWQL parameter code Parameter CAS#
1,4-Dichlorobenzene 34572 GCM37 106-46-7
17-beta-Estradiol 62053 GCM37 50-28-2
1-Methylnaphthalene 62054 GCM37 90-12-0
2,6-Dimethylnaphthalene 62055 GCM37 581-42-0
2-Methylnaphthalene 62056 GCM37 91-57-6
3-beta-Coprostanol 62057 GCM37 360-68-9
3-Methyl-1(H)-indole (Skatole) 62058 GCM37 83-34-1
3-tert-Butyl-4-hydroxy anisole (BHA) 62059 GCM37 25013-16-5
4-Cumylphenol 62060 GCM37 599-64-4
4-n-Octylphenol 62061 GCM37 1806-26-4
4-tert-Octylphenol 62063 GCM37 136-85-6
5-Methyl-1H-benzotriazole 62062 GCM37 140-66-9
Acetophenone 62064 GCM37 98-86-2
Acetyl hexamethyl tetrahydronaphthalene (AHTN) 62065 GCM37 21145-77-7
Anthracene 34221 GCM37 120-12-7
Anthraquinone 62066 GCM37 84-65-1
Benzo[a]pyrene 34248 GCM37 50-32-8
Benzophenone 62067 GCM37 119-61-9
beta-Sitosterol 62068 GCM37 83-46-5
beta-Stigmastanol 62086 GCM37 19466-47-8
Bisphenol A 62069 GCM37 80-05-7
Bromacil 04029 GCM37 314-40-9
Bromoform 34288 GCM37 75-25-2
Caffeine 50305 GCM37 58-08-2
Camphor 62070 GCM37 76-22-2
Carbaryl 82680 GCM37 63-25-2
Carbazole 62071 GCM37 86-74-8
Chlorpyrifos 38933 GCM37 2921-88-2
Cholesterol 62072 GCM37 57-88-5
Cotinine 62005 GCM37 486-56-6
Diazinon 39572 GCM37 333-41-5
d-Limonene 62073 GCM37 5989-27-5
Equilenin 62074 GCM37 517-09-9
Estrone 62484 GCM37 53-16-7
Ethynyl estradiol 62052 GCM37 57-63-6
Fluoranthene 34377 GCM37 206-44-0
Hexadydrohexamethylcyclopentabenzopyran (HHCB) 62075 GCM37 1222-05-5
Indole 62076 GCM37 120-72-9
Isoborneol 62077 GCM37 124-76-5
Isophorone 34409 GCM37 78-59-1
Isopropylbenzene (Cumene) 62078 GCM37 98-82-8
Isoquinoline 62079 GCM37 119-65-3
Menthol 62080 GCM37 89-78-1
Metalaxyl 50359 GCM37 57837-19-1
Methyl salicylate 62081 GCM37 119-36-8
Metolachlor 39415 GCM37 51218-45-2
N,N-diethyl-meta-toluamide (DEET) 62082 GCM37 134-62-3
Naphthalene 34443 GCM37 91-20-3
Nonylphenol, diethoxy- (total) 62083 GCM37 26027-38-2
Octylphenol, diethoxy- 61705 GCM37 26636-32-8
Octylphenol, monoethoxy- 61706 GCM37 26636-32-8
para-Nonylphenol (total) 62085 GCM37 84852-15-3
p-Cresol 62084 GCM37 106-44-5
Pentachlorophenol 34459 GCM37 87-86-5
Phenanthrene 34462 GCM37 85-01-8
Phenol 34466 GCM37 108-95-2
Prometon 04037 GCM37 1610-18-0
Pyrene 34470 GCM37 129-00-0
Tetrachloroethylene 34476 GCM37 127-18-4
Tri(2-butoxyethyl)phosphate 62093 GCM37 78-51-3
Tri(2-chloroethyl)phosphate 62087 GCM37 115-96-8
Tributyl phosphate 62089 GCM37 126-73-8
Triclosan 62090 GCM37 3380-34-5
Triethyl citrate (ethyl citrate) 62091 GCM37 77-93-0
Triphenyl phosphate 62092 GCM37 115-86-6
Tris(dichlorisopropyl)phosphate 62088 GCM37 13674-87-8
*Lab Schedule 2001 - Pesticides determinations by SPE and GCMS, Filtered
Choose an analyte below or click here for all analytes sorted by NWQL parameter code Parameter CAS#
2,6-Diethylaniline 82660 GCM35 579-66-8
Acetochlor 49260 GCM33 34256-82-1
Alachlor 46342 GCM35 15972-60-8
alpha-HCH 34253 GCM35 319-84-6
Atrazine 39632 GCM35 1912-24-9
Azinphos-methyl 82686 GCM35 86-50-0
Benfluralin 82673 GCM35 1861-40-1
Butylate 04028 GCM35 2008-41-5
Carbaryl 82680 GCM35 63-25-2
Carbofuran 82674 GCM35 1563-66-2
Chlorpyrifos 38933 GCM35 2921-88-2
cis-Permethrin 82687 GCM35 54774-45-7
Cyanazine 04041 GCM35 21725-46-2
Dacthal 82682 GCM35 1861-32-1
Deethylatrazine (Desethyl atrazine) 04040 GCM35 6190-65-4
Desulfinylfipronil 62170 GCM31 Not Assigned
Desulfinlfipronil Amide 62169 GCM31 Not Assigned
Diazinon 39572 GCM35 333-41-5
Dieldrin 39381 GCM35 60-57-1
Disulfoton 82677 GCM35 298-04-4
EPTC 82668 GCM35 759-94-4
Ethalfluralin 82663 GCM35 55283-68-6
Ethoprophos 82672 GCM35 13194-48-4
Fipronil 62166 GCM31 120068-37-3
Fipronil Sulfide 62167 GCM31 120067-83-6
Fipronil Sulfone 62168 GCM31 120068-36-2
Fonofos 04095 GCM35 944-22-9
Lindane 39341 GCM35 58-89-9
Linuron 82666 GCM35 330-55-2
Malathion 39532 GCM35 121-75-5
Metolachlor 39415 GCM35 51218-45-2
Metribuzin 82630 GCM35 21087-64-9
Molinate 82671 GCM35 2212-67-1
Napropamide 82684 GCM35 15299-99-7
p,p^-DDE 34653 GCM35 72-55-9
Parathion 39542 GCM35 56-38-2
Parathion-methyl 82667 GCM35 298-00-0
Pebulate 82669 GCM35 1114-71-2
Pendimethalin 82683 GCM35 40487-42-1
Phorate 82664 GCM35 298-02-2
Prometon 04037 GCM35 1610-18-0
Propachlor 04024 GCM35 1918-16-7
Propanil 82679 GCM35 709-98-8
Propargite 82685 GCM35 2312-35-8
Propyzamide (Pronamide) 82676 GCM35 23950-58-5
Simazine 04035 GCM35 122-34-9
Tebuthiuron 82670 GCM35 34014-18-1
Terbacil 82665 GCM35 5902-51-2
Terbufos 82675 GCM35 13071-79-9
Thiobencarb 82681 GCM35 28249-77-6
Triallate 82678 GCM35 2303-17-5
Trifluralin 82661 GCM35 1582-09-8
*Lab Schedule 2021 - NAWQA 85 Volatile Organic Compounds by GCMS, Whole Water Recoverable
Choose an analyte below or click here for all analytes sorted by NWQL parameter code Parameter CAS#
1,1,1,2-Tetrachloroethane 77562 GCM66 630-20-6
1,1,1-Trichloroethane 34506 GCM66 71-55-6
1,1,2,2-Tetrachloroethane 34516 GCM66 79-34-5
1,1,2-Trichloroethane 34511 GCM66 79-00-5
1,1,2-Trichlorotrifluoroethane 77652 GCM66 76-13-1
1,1-Dichloroethane 34496 GCM66 75-34-3
1,1-Dichloroethylene 34501 GCM66 75-35-4
1,1-Dichloropropene 77168 GCM66 563-58-6
1,2,3,4-Tetramethylbenzene 49999 GCM66 488-23-3
1,2,3,5-Tetramethylbenzene 50000 GCM66 527-53-7
1,2,3-Trichlorobenzene 77613 GCM66 87-61-6
1,2,3-Trichloropropane 77443 GCM66 96-18-4
1,2,3-Trimethylbenzene 77221 GCM66 526-73-8
1,2,4-Trichlorobenzene 34551 GCM66 120-82-1
1,2,4-Trimethylbenzene 77222 GCM66 95-63-6
1,2-Dibromo-3-chloropropane 82625 GCM66 96-12-8
1,2-Dibromoethane 77651 GCM66 106-93-4
1,2-Dichlorobenzene 34536 GCM66 95-50-1
1,2-Dichloroethane 32103 GCM66 107-06-2
1,2-Dichloropropane 34541 GCM66 78-87-5
1,3,5-Trimethylbenzene 77226 GCM66 108-67-8
1,3-Dichlorobenzene 34566 GCM66 541-73-1
1,3-Dichloropropane 77173 GCM66 142-28-9
1,4-Dichlorobenzene 34571 GCM66 106-46-7
2,2-Dichloropropane 77170 GCM66 594-20-7
2-Butanone 81595 GCM66 78-93-3
2-Chlorotoluene 77275 GCM66 95-49-8
2-Hexanone 77103 GCM66 591-78-6
3-Chloropropene 78109 GCM66 107-05-1
4-Chlorotoluene 77277 GCM66 106-43-4
4-Isopropyl-1-methylbenzene (Cymene) 77356 GCM66 99-87-6
4-Methyl-2-pentanone 78133 GCM66 108-10-1
Acetone 81552 GCM66 67-64-1
Acrylonitrile 34215 GCM66 107-13-1
Benzene 34030 GCM66 71-43-2
Bromobenzene 81555 GCM66 108-86-1
Bromochloromethane 77297 GCM66 74-97-5
Bromodichloromethane 32101 GCM66 75-27-4
Bromoethene 50002 GCM66 593-60-2
Bromoform 32104 GCM66 75-25-2
Bromomethane 34413 GCM66 74-83-9
Butylbenzene 77342 GCM66 104-51-8
Carbon disulfide 77041 GCM66 75-15-0
Chlorobenzene 34301 GCM66 108-90-7
Chloroethane 34311 GCM66 75-00-3
Chloroform 32106 GCM66 67-66-3
Chloromethane 34418 GCM66 74-87-3
cis-1,2-Dichloroethylene 77093 GCM66 156-59-2
cis-1,3-Dichloropropene 34704 GCM66 10061-01-5
Dibromochloromethane 32105 GCM66 124-48-1
Dibromomethane 30217 GCM66 74-95-3
Dichlorodifluoromethane 34668 GCM66 75-71-8
Dichloromethane 34423 GCM66 75-09-2
Diethyl ether 81576 GCM66 60-29-7
Diisopropyl ether 81577 GCM66 108-20-3
Ethyl methacrylate 73570 GCM66 97-63-2
Ethyl tert-butyl ether 50004 GCM66 637-92-3
Ethylbenzene 34371 GCM66 100-41-4
Hexachlorobutadiene 39702 GCM66 87-68-3
Hexachloroethane 34396 GCM66 67-72-1
Isopropylbenzene (Cumene) 77223 GCM66 98-82-8
m- and p-Xylene 85795 GCM66 000-01-10
Methyl acrylate 49991 GCM66 96-33-3
Methyl acrylonitrile 81593 GCM66 126-98-7
Methyl iodide 77424 GCM66 74-88-4
Methyl methacrylate 81597 GCM66 80-62-6
n-Propylbenzene 77224 GCM66 103-65-1
Naphthalene 34696 GCM66 91-20-3
o-Ethyl toluene 77220 GCM66 611-14-3
o-Xylene 77135 GCM66 95-47-6
sec-Butylbenzene 77350 GCM66 135-98-8
Styrene 77128 GCM66 100-42-5
tert-Butyl methyl ether 78032 GCM66 1634-04-4
tert-Butylbenzene 77353 GCM66 98-06-6
tert-Pentyl methyl ether 50005 GCM66 994-05-8
Tetrachloroethylene 34475 GCM66 127-18-4
Tetrachloromethane 32102 GCM66 56-23-5
Tetrahydrofuran 81607 GCM66 109-99-9
Toluene 34010 GCM66 108-88-3
trans-1,2-Dichloroethylene 34546 GCM66 156-60-5
trans-1,3-Dichloropropene 34699 GCM66 10061-02-6
trans-1,4-Dichloro-2-butene 73547 GCM66 110-57-6
Trichloroethylene 39180 GCM66 79-01-6
Trichlorofluoromethane 34488 GCM66 75-69-4
Vinyl chloride 39175 GCM66 75-01-4
*Lab Schedule 2033 - NAWQA ACT/ULUG Selected, Filtered Pesticides and Degradates (LS2003 plus 20 compounds)
Choose an analyte below or click here for all analytes sorted by NWQL parameter code Parameter CAS#
1-Naphthol 49295 GCM39 90-15-3
2,6-Diethylaniline 82660 GCM35 579-66-8
2-Chloro-2,6-diethylacetanilide 61618 GCM39 6967-29-9
2-Ethyl-6-methylaniline 61620 GCM39 24549-06-2
3,4-Dichloroaniline 61625 GCM39 95-76-1
3,5-Dichloroaniline 61627 GCM39 626-43-7
4-Chloro-2-methylphenol 61633 GCM39 1570-64-5
Acetochlor 49260 GCM33 34256-82-1
Alachlor 46342 GCM35 15972-60-8
alpha-Endosulfan (endosulfan I) 34362 GCM39 959-98-8
Atrazine 39632 GCM35 1912-24-9
Azinphos-methyl 82686 GCM35 86-50-0
Azinphos-methyl-oxon 61635 GCM39 961-22-8
Benfluralin 82673 GCM35 1861-40-1
Carbaryl 82680 GCM35 63-25-2
Carbofuran 82674 GCM35 1563-66-2
Chlorpyrifos 38933 GCM35 2921-88-2
Chlorpyrifos, oxygen analog 61636 GCM39 5598-15-2
cis-Permethrin 82687 GCM35 54774-45-7
cis-Propiconazole 79846 GCM40 000-02-12
Cyanazine 04041 GCM35 21725-46-2
Cyfluthrin 61585 GCM39 68359-37-5
Cyhalothrin 61595 GCM39 91465-08-6
Cypermethrin 61586 GCM39 52315-07-8
Dacthal 82682 GCM35 1861-32-1
Deethylatrazine (Desethyl atrazine) (2-chloro-4-isopropylamino-6-s-triazine) 04040 GCM35 6190-65-4
Desulfinylfipronil 62170 GCM29 000-03-08
Desulfinylfipronil amide 62169 GCM29 000-03-09
Diazinon 39572 GCM35/font> 333-41-5
Diazinon, oxygen analog 61638 GCM14 962-58-3
Dichlorovos (Dichlorvos) 38775 GCM39 62-73-7
Dicrotophos 38454 GCM39 141-66-2
Dieldrin 39381 GCM35 60-57-1
Dimethoate 82662 GCM40 60-51-5
Disulfoton 82677 GCM35 298-04-4
Disulfoton sulfone 61640 GCM39 2497-06-5
Endosulfan sulfate 61590 GCM39 1031-07-8
EPTC 82668 GCM35 759-94-4
Ethion 82346 GCM40 563-12-2
Ethion monoxon 61644 GCM39 17356-42-2
Ethoprophos 82672 GCM35 13194-48-4
Fenamiphos 61591 GCM39 22224-92-6
Fenamiphos sulfone 61645 GCM39 31972-44-8
Fenamiphos sulfoxide 61646 GCM39 31972-43-7
Fipronil 62166 GCM29 120068-37-3
Fipronil sulfide 62167 GCM29 120067-83-6
Fipronil sulfone 62168 GCM29 120068-36-2
Fonofos 04095 GCM35 944-22-9
Hexazinone 04025 GCM39 51235-04-2
Iprodione 61593 GCM39 36734-19-7
Isofenphos 61594 GCM39 25311-71-1
Malaoxon 61652 GCM39 1634-78-2
Malathion 39532 GCM35 121-75-5
Metalaxyl 61596 GCM39 57837-19-1
Methidathion (Supracide) 61598 GCM39 950-37-8
Metolachlor 39415 GCM35 51218-45-2
Metribuzin 82630 GCM35 21087-64-9
Molinate 82671 GCM35 2212-67-1
Myclobutanil 61599 GCM39 88671-89-0
Oxyfluorfen 61600 GCM39 42874-03-3
Paraoxon-methyl 61664 GCM39 950-35-6
Parathion-methyl 82667 GCM35 298-00-0
Pendimethalin 82683 GCM35 40487-42-1
Phorate 82664 GCM35 298-02-2
Phorate oxon 61666 GCM39 2600-69-3
Phosmet (Imidan) 61601 GCM39 732-11-6
Phosmet oxon 61668 GCM39 3735-33-9
Prometon 04037 GCM35 1610-18-0
Prometryn 04036 GCM39 7287-19-6
Propanil 82679 GCM35 709-98-8
Propargite 82685 GCM35 2312-35-8
Propyzamide (Pronamide) 82676 GCM35 23950-58-5
Simazine 04035 GCM35 122-34-9
Tebuconazole 62852 GCM14 107534-96-3
Tebuthiuron 82670 GCM35 34014-18-1
Tefluthrin 61606 GCM39 79538-32-2
Terbufos 82675 GCM35 13071-79-9
Terbufos-O-analogue sulfone 61674 GCM39 56070-15-6
Terbuthylazine 04022 GCM39 5915-41-3
Thiobencarb 82681 GCM35 28249-77-6
trans-Propiconazole 79847 GCM40 000-02-02
Tribufos (S,S,S-Tributylphosphorotrithioate (DEF)) 61610 GCM39 78-48-8
Trifluralin 82661 GCM35 1582-09-8
*Lab Schedule 2060 - Polar Pesticides and Metabolites by SPE and HPLC/MS, Filtered
Choose an analyte below or click here for all analytes sorted by NWQL parameter code Parameter CAS#
2,4-D 39732 LCM29 94-75-7
2,4-D methyl ester 50470 LCM29 1928-38-7
2,4-D methyl ester 66496 CAL13 none/font>
2,4-DB 38746 LCM29 94-82-6
2-Hydroxy-4-isopropylamino-6-ethylamino-s-triazine {OIET} {2-Hydroxyatrazine} (E) 50355 LCM29 2163-68-0
3(4-chlorophenyl)-1-methyl urea 61692 LCM29 5352-88-5
3-Hydroxycarbofuran 49308 LCM29 16655-82-6
3-Ketocarbofuran 50295 LCM29 16709-30-1
Acifluorfen 49315 LCM29 50594-66-6
Aldicarb 49312 LCM29 116-06-3
Aldicarb sulfone (E) 49313 LCM29 1646-88-4
Aldicarb sulfoxide 49314 LCM29 1646-87-3
Atrazine 39632 LCM29 1912-24-9
Bendiocarb 50299 LCM29 22781-23-3
Benomyl 50300 LCM29 17804-35-2
Bensulfuron-methyl 61693 LCM29 83055-99-6
Bentazon (E) 38711 LCM29 25057-89-0
Bromacil 04029 LCM29 314-40-9
Bromoxynil 49311 LCM29 1689-84-5
Caffeine 50305 LCM29 58-08-2
Carbaryl 49310 LCM29 63-25-2
Carbofuran 49309 LCM29 1563-66-2
Chloramben, methyl ester 61188 LCM29 7286-84-2
Chlorimuron ethyl 50306 LCM29 90982-32-4
Chlorothalonil (E) 49306 LCM29 1897-45-6
Clopyralid 49305 LCM29 1702-17-6
Cycloate 04031 LCM29 1134-23-2
Dacthal monoacid 49304 LCM29 887-54-7
2-Chloro-4-isopropylamino-6-amino-s-triazine {CIAT} {Deethylatrazine} {Desethyl atrazine} 04040 LCM29 6190-65-4
Chlordiamino-s-triazine {CAAT} {Deethyldeisopropylatrazine} 04039 LCM29 3397-62-4
2-Chloro-6-ethylamino-4-amino-s-triazine {CEAT} {Deisopropylatrazine} 04038 LCM29 1007-28-9
Dicamba 38442 LCM29 1918-00-9
Dichloroprop (Dichlorprop) 49302 LCM29 120-36-5
Dinoseb 49301 LCM29 88-85-7
Diphenamid 04033 LCM29 957-51-7
Diuron 49300 LCM29 330-54-1
Fenuron 49297 LCM29 101-42-8
Flumetsulam (E) 61694 LCM29 98967-40-9
Fluometuron 38811 LCM29 2164-17-2
Imazaquin (E) 50356 LCM29 81335-37-7
Imazethapyr (E) 50407 LCM29 81335-77-5
Imidacloprid 61695 LCM29 138261-41-3
Linuron 38478 LCM29 330-55-2
MCPA 38482 LCM29 94-74-6
MCPB 38487 LCM29 94-81-5
Metalaxyl 50359 LCM29 57837-19-1
Methiocarb 38501 LCM29 2032-65-7
Methomyl 49296 LCM29 16752-77-5
Metsulfuron methyl 61697 LCM29 74223-64-6
Neburon 49294 LCM29 555-37-3
Nicosulfuron (Accent) (E) 50364 LCM29 111991-09-4
Norflurazon 49293 LCM29 27314-13-2
Oryzalin 49292 LCM29 19044-88-3
Oxamyl 38866 LCM29 23135-22-0
Picloram 49291 LCM29 1918-02-1
Propham 49236 LCM29 122-42-9
Propiconazole (Tilt) 50471 LCM29 60207-90-1
Propoxur 38538 LCM29 114-26-1
Siduron 38548 LCM29 1982-49-6
Sulfometuron methyl 50337 LCM29 74222-97-2
Tebuthiuron 82670 LCM29 34014-18-1
Terbacil 04032 LCM29 5902-51-2
Tribenuron-methyl (E) 61159 LCM29 101200-48-0
Triclopyr 49235 LCM29 55335-06-3
Lab Schedule 4024 - Gasoline Oxygenates, Un-acidified, Wat, Unfiltered
Choose an analyte below or click here for all analytes sorted by NWQL parameter code Parameter CAS#
Acetone 81552 GCM60 67-64-1
Diisopropyl Ether 81577 GCM60 108-20-3
Ethyl Tert-Butyl Ether 50004 GCM60 637-92-3
Methyl Acetate 77032 GCM60 79-20-9
Tert-Amyl Alcohol 77073 GCM60 75-85-4
Tert-Butyl Alcohol 77035 GCM60 75-65-0
Tert-Butyl Methyl Ether 78032 GCM60 1634-04-4
Tert-Pentyl Methyl Ether 50005 GCM60 994-05-8
Lab Schedule 4433 - Waste Indicator compounds, Unfiltered water, by GC-MS
Choose an analyte below or click here for all analytes sorted by NWQL parameter code Parameter CAS#
1,4-Dichlorobenzene 34571 GCM99 106-46-7
1-Methylnaphthalene 81696 GCM99 90-12-0
2,2^,4,4^-Tetrabromodiphenylether (PBDE 47) 63147 GCM99 5436-43-1
2,6-Dimethylnaphthalene 62805 GCM99 581-42-0
2-Methylnaphthalene 30194 GCM99 91-57-6
3,4-Dichlorophenyl isocyanate 63145 GCM99 102-36-3
3-beta-Coprostanol 62806 GCM99 360-68-9
3-Methyl-1(H)-indole (Skatole) 62807 GCM99 83-34-1
3-tert-Butyl-4-hydroxy anisole (BHA) 61702 GCM99 25013-16-5
4-Cumylphenol 62808 GCM99 599-64-4
4-n-Octylphenol 62809 GCM99 1806-26-4
4-Nonylphenol diethoxylate, (sum of all isomers) aka NP2EO 61703 GCM99
4-tert-Octylphenol 62810 GCM99 140-66-9
4-tert-Octylphenol diethoxylate, aka OP2EO 62486 GCM99
4-tert-Octylphenol monoethoxylate, aka OP1EO 62485 GCM99
5-Methyl-1H-benzotriazole 61944 GCM99 136-85-6
Acetophenone 62811 GCM99 98-86-2
Acetyl hexamethyl tetrahydronaphthalene (AHTN) 62812 GCM99 21145-77-7
Anthracene 34220 GCM99 120-12-7
Anthraquinone 62813 GCM99 84-65-1
Atrazine 39630 GCM99 1912-24-9
Benzo[a]pyrene 34247 GCM99 50-32-8
Benzophenone 62814 GCM99 119-61-9
beta-Sitosterol 62815 GCM99 83-46-5
beta-Stigmastanol 61948 GCM99 19466-47-8
bis(2-Ethylhexyl) phthalate 39100 GCM99 117-81-7
Bisphenol A 62816 GCM99 80-05-7
Bromacil 30234 GCM99 314-40-9
Bromoform 32104 GCM99 75-25-2
Caffeine 81436 GCM99 58-08-2
Camphor 62817 GCM99 76-22-2
Carbaryl 39750 GCM99 63-25-2
Carbazole 77571 GCM99 86-74-8
Chlorpyrifos 38932 GCM99 2921-88-2
Cholesterol 62818 GCM99 57-88-5
Cotinine 61945 GCM99 486-56-6
Decafluorobiphenyl 62841 GCM99 434-90-2
Diazinon 39570 GCM99 333-41-5
Dichlorvos 30218 GCM99 62-73-7
Diethyl phthalate 34336 GCM99 84-66-2
d-Limonene 62819 GCM99 5989-27-5
Fluoranthene 34376 GCM99 206-44-0
Hexahydrohexamethylcyclopentabenzopyran (HHCB) 62823 GCM99 1222-05-5
Indole 62824 GCM99 120-72-9
Isoborneol 62825 GCM99 124-76-5
Isophorone 34408 GCM99 78-59-1
Isopropylbenzene 77223 GCM99 98-82-8
Isoquinoline 62826 GCM99 119-65-3
Menthol 62827 GCM99 89-78-1
Metalaxyl 04254 GCM99 57837-19-1
Methyl salicylate 62828 GCM99 119-36-8
Metolachlor 82612 GCM99 51218-45-2
N,N-diethyl-meta-toluamide (DEET) 61947 GCM99 134-62-3
Naphthalene 34696 GCM99 91-20-3
para-Nonylphenol (total) (branched) 62829 GCM99 84852-15-3
p-Cresol 77146 GCM99 106-44-5
Pentachlorophenol 39032 GCM99 87-86-5
Phenanthrene 34461 GCM99 85-01-8
Phenol 34694 GCM99 108-95-2
Prometon 39056 GCM99 1610-18-0
Pyrene 34469 GCM99 129-00-0
Sample volume 99963 GCM99
Tetrachloroethylene 34475 GCM99 127-18-4
Tributyl phosphate 62832 GCM99 126-73-8
Triclosan 61708 GCM99 3380-34-5
Triethyl citrate (ethyl citrate) 62833 GCM99 77-93-0
Triphenyl phosphate 62834 GCM99 115-86-6
Tris(2-butoxyethyl)phosphate 62830 GCM99 78-51-3
Tris(2-chloroethyl)phosphate 62831 GCM99 115-96-8
Tris(dichlorisopropyl)phosphate 61707 GCM99 13674-87-8
Lab Schedule 4434 - Hormones - SPE, by GC-MS
Choose an analyte below or click here for all analytes sorted by NWQL parameter code Parameter CAS#
11-Ketotestosterone 64527 GM005 564-35-2
17-alpha-Estradiol 64528 GM005 57-91-0
17-alpha-Ethynylestradiol 64529 GM005 57-63-6
17-beta-Estradiol 64530 GM005 50-28-2
Norethindrone 64531 GM005 68-22-4
3-beta-Coprostanol 64532 GM005 360-68-9
4-Androstene-3,17-dione 64533 GM005 63-05-8
Bisphenol A 67305 GM005 80-05-7
Cholesterol 64534 GM005 57-88-5
cis-Androsterone 64535 GM005 53-41-8
trans-Diethylstilbestrol 64536 GM005 56-53-1
Epitestosterone 64537 GM005 481-30-1
Equilenin 64538 GM005 517-09-9
Equilin 64539 GM005 474-86-2
Estriol 64540 GM005 50-27-1
Estrone 64541 GM005 53-16-7
Mestranol 64542 GM005 72-33-3
Progesterone 64543 GM005 57-83-0
Dihydrotestosterone 64544 GM005 521-18-6
Testosterone 64545 GM005 58-22-0
Lab Code 3211 - Total Organic Carbon, Whole Water Recoverable
Choose the link below Parameter CAS#
TOC 00680 COMB9 not assigned

Lab Code 2612 - Dissolved Organic Carbon, Filtered, Sulfuric Acid Preserved
Choose the link below Parameter CAS#
DOC 00681 OX006 not assigned

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Questions/Comments?  dbeaty@usgs.gov Page Last Modified: March 29, 2023