Schedule 2033
Description: NAWQA Schedule 2003 plus 20 additional compounds
Owner: NAWQA
Analyzing Laboratory(s):
USGS - National Water Quality Laboratory, Denver, CO
Analyte CAS Number RL Unit
1-Naphthol  90-15-3 0.0882 ug/L
2-Chloro-2,6-diethylacetanilide  6967-29-9 0.005 ug/L
2-Ethyl-6-methylaniline  24549-06-2 0.0045 ug/L
3,4-Dichloroaniline  95-76-1 0.0045 ug/L
3,5-Dichloroaniline  626-43-7 0.0043 ug/L
4-Chloro-2-methylphenol  1570-64-5 0.0056 ug/L
Acetochlor  34256-82-1 0.006 ug/L
Alachlor  15972-60-8 0.005 ug/L
2,6-Diethylaniline  579-66-8 0.006 ug/L
Atrazine  1912-24-9 0.007 ug/L
Azinphos-methyl  86-50-0 0.05 ug/L
Azinphos-methyl-oxon  961-22-8 0.07 ug/L
Benfluralin  1861-40-1 0.01 ug/L
Carbaryl  63-25-2 0.041 ug/L
Carbofuran  1563-66-2 0.02 ug/L
Chlorpyrifos  2921-88-2 0.005 ug/L
Chlorpyrofos, oxygen analog  5598-15-2 0.0562 ug/L
cis-Permethrin  54774-45-7 0.006 ug/L
cis-Propiconazole  60207-90-1 0.008 ug/L
Cyanazine  21725-46-2 0.018 ug/L
Cyfluthrin  68359-37-5 0.0267 ug/L
Cypermethrin  52315-07-8 0.0086 ug/L
Dacthal  1861-32-1 0.003 ug/L
2-Chloro-4-isopropylamino-6-amino-s-triazine {CIAT}  6190-65-4 0.006 ug/L
Diazinon  333-41-5 0.005 ug/L
Diazinon, oxygen analog  962-58-3 0.006 ug/L
Diazinon-d10  100155-47-3 pct
Dichlorvos  62-73-7 0.0118 ug/L
Dicrotophos  141-66-2 0.0843 ug/L
Dieldrin  60-57-1 0.009 ug/L
Dimethoate  60-51-5 0.0061 ug/L
Disulfoton  298-04-4 0.021 ug/L
Disulfoton sulfone  6/5/2497 0.0059 ug/L
alpha-Endosulfan  959-98-8 0.0047 ug/L
Endosulfan sulfate  1031-07-8 0.0138 ug/L
EPTC  759-94-4 0.004 ug/L
Ethion  563-12-2 0.004 ug/L
Ethion monoxon  17356-42-2 0.002 ug/L
Ethoprophos  13194-48-4 0.005 ug/L
Fenamiphos  22224-92-6 0.029 ug/L
Fenamiphos sulfone  31972-44-8 0.0491 ug/L
Fenamiphos sulfoxide  31972-43-7 0.0387 ug/L
Desulfinylfipronil amide  0.029 ug/L
Fipronil sulfide  120067-83-6 0.013 ug/L
Fipronil sulfone  120068-36-2 0.024 ug/L
Desulfinylfipronil  0.012 ug/L
Fipronil  120068-37-3 0.016 ug/L
Fonofos  944-22-9 0.003 ug/L
alpha-HCH-d6  86194-41-4 pct
Hexazinone  51235-04-2 0.0129 ug/L
Iprodione  36734-19-7 0.538 ug/L
Isofenphos  25311-71-1 0.0034 ug/L
lambda-Cyhalothrin  91465-08-6 0.0089 ug/L
Malaoxon  1634-78-2 0.0298 ug/L
Malathion  121-75-5 0.027 ug/L
Metalaxyl  57837-19-1 0.0051 ug/L
Methidathion  950-37-8 0.0058 ug/L
Parathion-methyl  298-00-0 0.015 ug/L
Metolachlor  51218-45-2 0.006 ug/L
Metribuzin  21087-64-9 0.006 ug/L
Molinate  2212-67-1 0.003 ug/L
Myclobutanil  88671-89-0 0.008 ug/L
Oxyfluorfen  42874-03-3 0.0073 ug/L
Paraoxon-methyl  950-35-6 0.0299 ug/L
Pendimethalin  40487-42-1 0.022 ug/L
Phorate  298-02-2 0.011 ug/L
Phorate oxygen analog  2600-69-3 0.1048 ug/L
Phosmet  732-11-6 0.0079 ug/L
Phosmet oxon  3735-33-9 0.0511 ug/L
Prometon  1610-18-0 0.01 ug/L
Prometryn  7287-19-6 0.0054 ug/L
Propyzamide  23950-58-5 0.004 ug/L
Propanil  709-98-8 0.011 ug/L
Propargite  2312-35-8 0.023 ug/L
Sample volume  mL
Set number  no.
Simazine  122-34-9 0.005 ug/L
Tebuconazole  107534-96-3 0.0136 ug/L
Tebuthiuron  34014-18-1 0.016 ug/L
Tefluthrin  79538-32-2 0.0077 ug/L
Terbufos  13071-79-9 0.017 ug/L
Terbufos oxygen analog sulfone  56070-15-6 0.0676 ug/L
Terbuthylazine  5915-41-3 0.0102 ug/L
Thiobencarb  28249-77-6 0.01 ug/L
trans-Propiconazole  60207-90-1 0.0133 ug/L
Tribufos  78-48-8 0.0044 ug/L
Trifluralin  1582-09-8 0.009 ug/L
Container Requirements
Quantity     Bottle
1 1L GCC - This schedule consumes the entire container.
Description:
Treatment and Preservation: 1L 125mL or 60mL (see schedule for size) Glass amber bottle baked at 450 deg C by laboratory - SOME GCCs should be filtered CHECK METHOD REFERENCE OR EMAIL LABHELP@USGS.GOV FOR FILTERING REQUIREMENTS? DO NOT RINSE BOTTLE. Do not fill bottle beyond shoulder. reagents must be added to the sample at the NWQL before analyses. Chill sample and maintain at 4 deg C. ship immediately.
References
1. OFR 95-181 (original method) 
Zaugg, S.D., Sandstrom, M.W., Smith, S.G., and Fehlberg, K.M., 1995, Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory--Determination of pesticides in water by C-18 solid-phase extraction and capillary-column gas chromatography/mass spectrometry with selected-ion monitoring: U.S. Geological Survey Open-File Report 95-181, 60 p.
Method ID: O-1126-95
2. Journal of AOAC Intl, v. 79, no. 4, p. 962-966 (Acetochlor) 
Lindley, C.E., Stewart, J.T., and Sandstrom, M.W., 1996, Determination of low concentrations of acetochlor in water by automated solid-phase extraction and gas chromatography with mass selective detection: Journal of AOAC International, v. 79, no. 4, p. 962-966.
3. OFR 02-462 (fipronil and degradates) 
Madsen, J.E., Sandstrom, M.W., and Zaugg, S.D., 2003, Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory---A method supplement for the determination of fipronil and degradates in water by gas chromatography/mass spectrometry: U.S. Geological Survey Open-File Report 02-462, 11 p.
Method ID: O-1126-02
4. WRIR 01-4098 
Sandstrom, M.W., Stroppel, M.E., Foreman, W.T., and Schroeder, M.P., 2001, Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory--Determination of moderate-use pesticides and selected degradates in water by C-18 solid-phase extraction and gas chromatography/mass spectrometry: U.S. Geological Survey Water-Resources Investigations Report 01-4098, 70 p.
Method ID: O-2002-01