Scientific Investigations Report 2006-5005

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006-5005

Pesticides in Agricultural Irrigation-Return Flow, Columbia Basin Project, Washington, 2002-04

Back to Table of Contents

Table 16. Concentrations and precision data for pesticide replicate samples, Columbia Basin Project, Washington, July 2002 to October 2004.

[Pesticide target analyte: CIAT, 2-chloro-4-isopropylamino-6-amino-s-triazine; OIET, 2-hydroxy-4-isopropylamino-6-ethylamino-s-triazine.Abbreviations: µg/L, microgram per liter; M, presence of material verified, but not quantified; E, because recovery or variation in recovery was outside the acceptable range, compound is qualified with an E-code (estimated) or concentration reported is less than laboratory reporting level and is qualified as estimated; <, less than; –, no data]

Pesticide target analyte Concentration in replicates (mg/L) Percentage of relative difference
2,4-D methyl ester 0.017 19
.014
.037 10
.041
2,4-D .29 .0
.29
.3 3.4
.29
CIAT <.03 –
E.011
E.01 .0
E.01
E.01 9.5
E.011
OIET E.009 25
E.007
Alachlor E.004 –
<.005
Atrazine .011 71
.023
.02 5.1
.019
.01 62
.019
Azinphos-methyl E.018 5.4
E.019
Bentazon E.05 .0
E.05
E.02 .0
E.02
Pesticide target analyte Concentration in replicates (mg/L) Percentage of relative difference
Chlorpyrifos E0.004 0.0
E.004
DCPA .008 .0
.008
Dicamba E.19 38
E.13
.02 67
.01
Diphenamid M .0
M
Diuron .02 .0
.02
E.01 .0
E.01
EPTC .033 3.1
.032
Linuron E.014 7.4
E.013
Metolachlor E.01 .0
E.01
Metribuzin E.005 .0
E.005
Nicosulfuron E.01 .0
E.01
Simazine .01 .0
.01
Terbacil E.022 4.7
E.021

Table 17. Percentage of mean recoveries from field-matrix-pesticide analyses, Columbia Basin Project, Washington, July 2002 to October 2004.

[Abbreviations: M, presence of material verified, but not quantified; –, no data]

Pesticide target analyte Percentage of mean recovery Number of samples
Gas Chromatography/Mass Spectrometry analytical data
Acetochlor 110 1
Alachlor 112 1
Atrazine 125 1
Azinphos-methyl 44 1
Benfluralin 105 1
Butylate 98 1
Carbyl 36 1
Carbofuran 145 1
Chlorpyrifos 99 1
Cyanazine 133 1
CIAT 33 1
DCPA 101 1
4,4’-DDE 53 1
Diazinon 92 1
Dieldrin 86 1
2,6-Diethylanaline 70 1
Disulfoton 53 1
EPTC 92 1
Ethalfluralin 121 1
Ethoprop 91 1
Fipronil 166 1
Fipronil sulfide 121 1
Fipronil sulfone 108 1
Fonos 94 1
alpha-HCH 92 1
gamma-HCH 92 1
Linuron 97 1
Malathion 113 1
Methyl parathion 164 1
Metolachlor 114 1
Metribuzin 78 1
Molinate 88 1
Napropamide 90 1
Parathion 171 1
Pebulate 93 1
Pendimethalin 116 1
cis-Permethrin 55 1
Phorate 77 1
Prometon 116 1
Propyzamide 95 1
Propachlor 112 1
Propanil 121 1
Propargite 213 1
Simazine 99 1
Tebuthiuron 151 1
Terbacil 79 1
Terbufos 80 1
Thiobencarb 93 1
Triallate 92 1
Trifluralin 108 1
High-Performance Liquid Chromatography/Mass Spectrometry analytical data
2,4-D 37 1
2,4-D methyl ester 50 1
2,4-DB – 0
OIET – 0
3(4-Chlorophenyl)-1-methyl urea 71 1
3-Ketocarbofuran 0/M 1
Acifluorfen – 0
Pesticide target analyte Percentage of mean recovery Number of samples
High-Performance Liquid Chromatography/Mass Spectrometry analytical data—Continued
Aldicarb 60 1
Aldicarb sulfone 34 1
Aldicarb sulfoxide 62 1
Chloramben, methyl ester 45 1
Atrazine 78 (39,362) 1
Bendiocarb 60 1
Benomyl 85 1
Bensulfuron-methyl 150 1
Bentazon – 0
Bromacil 60 1
Bromoxynil – 0
Caffeine 81 1
Carbaryl 82 1
Carbofuran 91 1
3-Hydroxycarbofuran 85 1
Chlorimuron-ethyl 96 1
Chlorothalonil – 0
Clopyralid – 0
Cycloate 86 1
Dacthal monoacid – 0
CIAT 52 1
Chlordiamino-s-triazine – 0
CEAT 124 1
Dicamba – 0
Dichlorprop – 0
Dinoseb – 0
Diphenamid 97 1
Diuron 109 1
Fenuron 79 1
Flumetsulam 120 1
Fluometuron 97 1
Imazaquin 86 1
Imazethapyr 105 1
Imidacloprid 128 1
Linuron 97 1
MCPA – 0
MCPB – 0
Metalaxyl 101 1
Methiocarb 89 1
Methomyl 91 1
Metsulfuron methyl 79 1
Neburon 101 1
Nicosulfuron 127 1
Norflurazon 101 1
Oryzalin 86 1
Oxamyl 67 1
Picloram – 0
Propham 74 1
Propiconazole 97 1
Propoxur 91 1
Siduron 105 1
Sulfometuron-methyl 121 1
Tebuthiuron 87 1
Terbacil 64 1
Tribenuron-methyl 87 1
Triclopyr – 0

Table 18. Pesticide concentrations analyzed by gas chromatography/mass spectrometry and high-performance liquid chromatography/mass spectrometry, Columbia Basin Project, Washington, July 2002 to October 2004.

[GC/MS, analysis by gas chromatography/mass spectrometry; HPLC/MS, analysis by high-performance liquid chromatography/mass spectrometry. Abbreviations:E, because recovery or variation in recovery was outside the acceptable range, compound is qualified with an E-code (estimated) or concentration reported is less than laboratory reporting level and is qualified as estimated; <, less than]

Sampling site Date Time Atrazine   CIAT   Tebuthiuron
GC/MS HPLC/MS GC/MS HPLC/MS GC/MS HPLC/MS
39632 39632 4040 4040 82670 82670
Crab Creek
12472600 07-30-02 1020 0.021 E0.013 E0.019 E0.012 <0.02 <0.032
12472600 09-24-02 1100 .014 E.008 E.013 E.009 <.02 <.032
12472600 02-05-03 1120 .016 .01 E.014 E.008 <.02 <.032
12472600 04-09-03 0930 .015 E.006 E.009 E.007 <.02 <.032
12472600 05-07-03 0940 .023 .015 E.007 E.007 <.02 <.032
12472600 07-01-03 1400 .019 E.009 E.011 E.006 <.02 <.032
12472600 10-06-03 1350 .014 E.009 E.004 E.009 <.02 <.032
12472600 02-03-04 1330 .017 E.005 E.014 <.028 <.02 <.032
12472600 04-06-04 1310 .016 E.008 E.011 E.007 <.02 <.032
12472600 06-08-04 1250 .019 .01 E.010 <.028 <.02 <.032
12472600 07-07-04 1320 .026 .013 E.012 E.008 <.02 <.032
12472600 10-05-04 1310 .018 E.006 E.010 E.005 <.02 E.004
Lind Coulee
12471400 07-30-02 1345 0.008 E0.004 E0.005 <0.028 <0.02 <0.032
12471400 09-24-02 1400 .009 E.004 E.006 E.004 <.02 <.032
12471400 02-05-03 1440 .011 E.006 E.008 E.005 <.02 <.032
12471400 04-09-03 1520 <.007 <.009 <.006 <.028 <.02 <.032
12471400 06-07-03 1320 <.007 <.009 <.006 <.028 <.02 <.032
12471400 07-02-03 1430 .009 E.005 E.004 <.028 <.02 <.032
12471400 10-07-03 1440 .009 E.004 E.003 E.003 <.02 <.032
12471400 02-04-04 1350 .01 <.009 E.009 <.028 <.02 <.032
12471400 04-07-04 1410 .011 E.004 <.006 <.028 <.02 <.032
12471400 06-09-04 1310 .01 E.003 E.005 <.028 <.02 <.032
12471400 07-08-04 1240 .011 E.004 E.005 <.028 <.02 <.032
12471400 10-06-04 1410 .012 <.008 E.004 <.028 <.02 <.032
Red Rock Coulee
12472520 07-29-02 1450 0.018 E0.011 E0.011 E0.008 <0.02 <0.032
12472520 09-23-02 1310 .017 E.006 E.011 E.005 <.02 <.032
12472520 02-04-03 1350 .019 .012 E.015 E.009 <.02 <.032
12472520 04-09-03 1150 .021 E.008 E.015 E.007 <.02 <.032
12472520 05-06-03 1310 .032 E.030 E.008 E.012 <.02 <.032
12472520 07-02-03 1020 .019 .012 E.009 E.006 <.02 <.032
12472520 02-04-04 0910 .018 E.006 E.013 <.028 <.02 <.032
12472520 04-07-04 0910 .019 .011 E.011 <.028 <.02 <.032
12472520 06-09-04 0810 .023 .011 E.011 <.028 <.02 <.032
12472520 07-08-04 0830 .029 .017 E.010 E.007 <.02 <.032
12472520 10-06-04 0930 .018 E.006 E.009 E.004 <.02 <.032
Sand Hollow
12464606 07-29-02 1150 0.009 E0.005 E0.008 <0.005 <0.02 <0.032
12464607 09-23-02 1100 .013 E.004 E.013 E.005 <.02 <.032
12464607 02-04-03 1050 .029 .021 E.036 E.021 <.02 <.032
12464607 04-07-03 1050 .008 <.009 E.005 E.004 <.02 <.032
12464607 05-06-03 1010 <.007 E.005 <.006 E.006 <.02 <.032
12464607 07-01-03 1020 .014 E.007 E.012 E.007 <.02 <.032
12464607 10-06-03 1010 .01 E.005 E.005 E.006 <.02 <.032
12464607 02-03-04 0920 .026 E.007 E.029 E.005 <.02 <.032
12464607 04-06-04 0920 .013 E.004 E.009 E.005 <.02 <.032
12464607 06-08-04 0840 .011 E.005 E.008 <.028 <.02 <.032
12464607 07-07-04 0930 .01 E.005 E.008 <.028 <.02 <.032
12464607 10-05-04 0930 .015 E.004 E.009 E.004 <.02 <.032
Total sample 47 47 47
Total < 2 3 46
Total hits 41 29 0
Negligent hit/miss 4 15 1
Significant hits/miss 0 0 0
Median percentage difference of hits 79 79
Sampling site Date Time Carbaryl   Carbofuran   Linuron   Terbacil
GC/MS HPLC/MS GC/MS HPLC/MS GC/MS HPLC/MS GC/MS HPLC/MS
P82680 P49310 P82674 P49309 P82666 P38478 P82665 P04032
Crab Creek
12472600 07-30-02 1020 E.005 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12472600 09-24-02 1100 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12472600 02-05-03 1120 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12472600 04-09-03 0930 <.041 <.03 <.020 <.006 <.035 <.01 E.061 E.031
12472600 05-07-03 0940 <.041 <.03 <.020 <.006 <.035 <.01 E.033 E.025
12472600 07-01-03 1400 <.041 <.03 <.020 <.006 <.035 <.01 E.026 <.010
12472600 10-06-03 1350 <.041 <.03 <.020 <.006 <.035 <.01 <.034 E.006
12472600 02-03-04 1330 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12472600 04-06-04 1310 <.041 <.03 <.020 <.006 <.035 <.01 E.016 <.010
12472600 06-08-04 1250 <.041 <.03 <.020 <.006 E.013 <.01 E.021 <.010
12472600 07-07-04 1320 E.009 <.03 <.020 <.006 <.035 <.01 E.021 <.010
12472600 10-05-04 1310 <.041 <.02 <.020 <.016 <.035 <.01 <.034 <.016
Lind Coulee
12471400 07-30-02 1345 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12471400 09-24-02 1400 <.041 <.03 <.020 <.006 E.006 <.01 <.034 <.010
12471400 02-05-03 1440 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12471400 04-09-03 1520 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12471400 06-07-03 1320 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12471400 07-02-03 1430 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12471400 10-07-03 1440 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12471400 02-04-04 1350 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12471400 04-07-04 1410 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12471400 06-09-04 1310 <.041 <.03 <.020 <.006 E.013 <.01 <.034 <.010
12471400 07-08-04 1240 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12471400 10-06-04 1410 <.041 <.02 <.020 <.016 <.035 <.01 <.034 <.016
Red Rock Coulee
12472520 07-29-02 1450 <.041 <.03 <.020 <.006 <.035 <.01 <.034 <.010
12472520 09-23-02 1310 <.041 <.03 <.020 <.006 <.035 <.01 E.014 <.010
12472520 02-04-03 1350 <.041 <.03 <.020 <.006 <.035 E.01 <.034 E.005
12472520 04-09-03 1150 <.041 <.03 <.020 <.006 <.035 <.01 E.044 E.020
12472520 05-06-03 1310 <.041 <.03 <.020 <.006 <.035 <.01 E.075 E.090
12472520 07-02-03 1020 <.041 <.03 <.020 <.006 <.035 <.01 E.020 E.010
12472520 02-04-04 0910 <.041 <.03 <.020 <.006 <.035 <.01 <.034 E.006
12472520 04-07-04 0910 <.041 <.03 <.020 <.006 <.035 <.01 E.040 <.027
12472520 06-09-04 0810 <.041 <.03 <.020 <.006 E.014 <.01 E.050 <.010
12472520 07-08-04 0830 <.041 <.03 <.020 <.006 <.035 <.01 E.011 <.010
12472520 10-06-04 0930 <.041 <.02 <.020 <.016 <.035 <.01 <.034 <.016
Sand Hollow
12464606 07-29-02 1150 E0.005 <0.03 <0.020 <0.006 <0.035 <0.01 E0.071 E0.042
12464607 09-23-02 1100 <.041 <.03 <.020 <.006 <.035 <.01 E.106 .051
12464607 02-04-03 1050 <.041 <.03 <.020 <.006 <.035 <.01 E.157 E.085
12464607 04-07-03 1050 <.041 <.03 <.020 <.006 <.035 <.01 E1.01 E1.35
12464607 05-06-03 1010 E.009 E.01 <.020 <.006 <.035 <.01 E.070 E.069
12464607 07-01-03 1020 <.041 <.03 <.020 <.006 <.035 <.01 E.237 E.176
12464607 10-06-03 1010 <.041 <.03 <.020 <.006 <.035 E.01 E.047 E.044
12464607 02-03-04 0920 <.041 <.03 <.020 <.006 <.035 <.01 E.259 E.123
12464607 04-06-04 0920 <.041 <.03 <.020 <.006 <.035 <.01 E.053 <.019
12464607 06-08-04 0840 E.070 E.01 <.020 <.006 E.007 <.01 E.088 E.030
12464607 07-07-04 0930 E.031 E.01 <.020 <.006 <.035 <.01 E.075 <.032
12464607 10-05-04 0930 <.041 <.02 <.020 <.016 <.035 <.01 E.051 E.033
Total sample 47 47 47 47
Total < 41 47 40 19
Total hits 3 0 0 15
Negligent hit/miss 3 0 7 5
Significant hits/miss 0 0 0 8
Median percentage difference of hits 56 39

Table 19. Registration status of pesticides analyzed, Columbia Basin Project, Washington, July 2002 to October 2004.

[Type of pesticide: F, fungicide; H, herbicide; I, insecticide; S, stimulant. Registered use: Home and (or) commercial]

Pesticide target analyte Trade or
common name(s)		 Type of
pesticide		 Registered use
2,4-D Weedon-2,4,-DP H Both
2,4-D methyl ester none H Both
2,4-DB none H Commercial
Acetochlor Acenit, Sacenid H Commercial
Acifluorfen Blazer, Tackle H Home
Alachlor Lasso H Commercial
Aldicarb Temik I Commercial
alpha-HCH none I Neither
Atrazine Aatrexx, Atratol H Both
Azinphos-methyl Guthion I Commercial
Bendiocarb Ficam I Both
Benfluralin Balan, Benefin H Both
Benomyl Benlate F Both
Bensulfuron-methyl Londax H Neither
Bentazon Adagio, Galaxy, Storm H Both
Bromacil Hyvar, Uragon H Both
Bromoxynil Buctril, Bromanil, Torch H Commercial
Butylate Sutran +, Genate Plus H Commercial
Caffeine none S Neither
Carbaryl Sevin, Savit I Both
Carbofuran Furadan I Commercial
Chloramben, methyl ester Amiben H Neither
Chlorimuron-ethyl Classic H Neither
Chlorothalonil Bravo, Forturf F Both
Chlorpyrifos Lorsban I Both
cis-Permethrin Ambush, Pounce I Both
Clopyralid Stinger, Lontrel H Both
Cyanazine Bladex H Commercial
Cycloate Ro-Neet, Marathon H Commercial
DCPA Dacthal H Commercial
Diazinon several I Both
Dicamba Banvel, Marksman, Clarity H Both
Dichlorprop 2,4-DP, Weedon DP H Both
Dieldrin Panoram D-31 I Neither
Dinoseb DNBP, Caldon, Dynamite H Neither
Diphenamid Rideon, Dymid, Enide H Neither
Disulfoton Di-Syston I Both
Diuron DCMU, Direx, Aguron H Both
EPTC Eptam, Eradicane H Both
Ethalfluralin Sonalan, Curbit EC H Commercial
Ethoprop Mocap I Commercial
Fenuron Beet-Kleen H Neither
Fipronil Regent I Both
Flumetsulam DE498, XRD 498 H Commercial
Fluometuron Cotoran, Lanex, Cottonex H Neither
Fonos Dyfonate I Neither
gamma-HCH Lindane I Both
Imazaquin Skepter 1.5L, Image 1.5LC H Commercial
Imazethapyr Pursuit, Pursuit DG H Commercial
Imidacloprid Admire, Gaucho, Merit I Both
Linuron Lorox, Linex, Afalon H Commercial
Malathion several I Both
MCPA Metaxon, Border Master H Both
MCPB Troptox, Can-Trol H Commercial
Metalaxyl Apron, Subdue, Ridomil F Both
Methiocarb Draza, Mesurol I Commercial
Methomyl Lannate, Nudrin, Lanox I Both
Methyl parathion Penncap-M I Commercial
Metolachlor Dual, Pennant H Commercial
Metribuzin Lexone, Sencor H Commercial
Metsulfuron methyl Escort, Gropper, Ally H Commercial
Molinate Ordram H Neither
Napropamide Devrinol H Both
Neburon Granurex, Herbalt, Kloben H Neither
Nicosulfuron Accent, Accent DF H Commercial
Norflurazon Zorial, Evital, Solicam H Commercial
Oryzalin Ryzelan, Surflan, Dirimal H Both
Oxamyl Vydate: Thioxamyl I Commercial
Parathion several I Commercial
Pebulate Tillam H Commercial
Pendimethalin Prowl, Stomp H Both
Phorate Thimet, Rampart I Commercial
Picloram Tordon, Amdon, Grazon H Commercial
Prometon Pramitol H Both
Propachlor Ramrod H Commercial
Propanil Stampede H Neither
Propargite Comite, Omite I Commercial
Propham Chem-Hoe, IPC, Premalox H Neither
Propiconazole Tilt, Orbit, Wocosin F Both
Propoxur Baygon, PHC, Suncide I Both
Propyzamide Kerb H Neither
Siduron Tupersan, Trey H Both
Simazine Aquazine, Princep H Both
Sulfometuron-methyl Oust, DPX-T5648 H Commercial
Tebuthiuron Graslan, Spike, Perflan H Commercial
Terbacil Sinbar, DPX-D732, Geonter H Commercial
Terbufos Counter I Commercial
Thiobencarb Bolero H Neither
Triallate Far-Go H Commercial
Tribenuron-methyl Express, DPX-L5300 H Commercial
Triclopyr Garlon, Curtail, Redeem H Both
Trifluralin Treflan, Trilin H Both

Table 20. Summary of pesticides not detected, Columbia Basin Project, Washington, July 2002 to October 2004.

[Type of pesticide: H, herbicide; I, insecticide; T, transformation product]

Pesticide target analyte Trade or
common name(s)		 Type of
pesticide
2,6-Diethylanaline none T
3(4-Chlorophenyl)-1-methyl urea none T
3-Hydroxycarbofuran none T
3-Ketocarbofuran none T
4,4’-DDE none T
Acetochlor Acenit, Sacenid H
Acifluorfen Blazer, Tackle H
Aldicarb Temik I
Aldicarb sulfone none T
Aldicarb sulfoxide none T
alpha-HCH none I
Bendiocarb Ficam I
Benfluralin Balan, Benefin H
Bensulfuron-methyl Londax H
Butylate Sutran +, Genate Plus H
Carbofuran Furadan I
Chloramben, methyl ester Amiben H
Chlorimuron-ethyl Classic H
cis-Permethrin Ambush, Pounce I
Cyanazine Bladex H
Cycloate Ro-Neet, Marathon H
Desulfinylfipronil none T
Desulfinylfipronil amide none T
Dichlorprop 2,4-DP, Weedon DP H
Dieldrin Panoram D-31 I
Disulfoton Di-Syston I
Fenuron Beet-Kleen H
Fipronil Regent I
Fipronil sulfide none T
Fipronil sulfone none T
Flumetsulam DE498, XRD 498 H
Fluometuron Cotoran, Lanex, Cottonex H
Fonos Dyfonate I
gamma-HCH Lindane I
Imazaquin Skepter 1.5L, Image 1.5LC H
Imazethapyr Pursuit, Pursuit DG H
Imidacloprid Admire, Gaucho, Merit I
MCPB Troptox, Can-Trol H
Methiocarb Draza, Mesurol I
Methyl parathion Penncap-M I
Metsulfuron methyl Escort, Gropper, Ally H
Molinate Ordram H
Napropamide Devrinol H
Neburon Granurex, Herbalt, Kloben H
Oryzalin Ryzelan, Surflan, Dirimal H
Parathion several I
Pebulate Tillam H
Phorate Thimet, Rampart I
Picloram Tordon, Amdon, Grazon H
Propachlor Ramrod H
Propanil Stampede H
Propargite Comite, Omite I
Propham Chem-Hoe, IPC, Premalox H
Propoxur Baygon, PHC, Suncide I
Propyzamide Kerb H
Siduron Tupersan, Trey H
Sulfometuron-methyl Oust, DPX-T5648 H
Tebuthiuron Spike H
Terbacil Sinbar H
Terbufos Counter I
Thiobencarb Bolero H

Back to Table of Contents

For more information about USGS activities in Washington, visit the USGS Washington Water Science Center home page .

Accessibility FOIA Privacy Policies and Notices

Take Pride in America home page. FirstGov button U.S. Department of the Interior | U.S. Geological Survey
Persistent URL: https://pubs.water.usgs.gov/sir20065005
Page Contact Information: Publications Team
Page Last Modified: Thursday, 01-Dec-2016 18:54:10 EST