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1,2,4-Trichlorobenzene
1,2-Dichlorobenzene (o-Dichlorobenzene, 1,2-DCB)
1,3-Dichlorobenzene (m-Dichlorobenzene)
1,4-Dichlorobenzene (p-Dichlorobenzene, 1,4-DCB)
2,3,5,6-Tetramethylphenol
2,4,6-Trichlorophenol
2,4,6-Trimethylphenol
2,4-Dichlorophenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
2-Nitrophenol
4,6-Dinitro-2-methylphenol
4-Bromophenyl-phenylether
4-Chlorophenyl-phenylether
4-Nitrophenol
Azobenzene
Benzo[ c ]cinnoline
C8-Alkylphenol
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Isophorone
N-Nitrosodi-n-propylamine
Nitrobenzene
Pentachloronitrobenzene
bis (2-Chloroethoxy)methane
bis (2-Chloroisopropyl)ether
Organochlorine compounds
Aldrin (HHDN, Octalene)
Chloroneb (chloronebe, Demosan, Soil Fungicide 1823)
DCPA (Dacthal, chlorthal-dimethyl)
Dieldrin (Panoram D-31, Octalox, Compound 497, Aldrin epoxide)
Endosulfan I (alpha-Endosulfan, Thiodan, Cyclodan, Beosit, Malix, Thimul, Thifor)
Endrin (Endrine)
Heptachlor epoxide (Heptachlor metabolite)
Heptachlor (Heptachlore, Velsicol 104)
Hexachlorobenzene (HCB)
Isodrin (Isodrine, Compound 711)
Mirex (Dechlorane)
Pentachloroanisole (PCA, pentachlorophenol metabolite)
Total Trihalomethanes (Trichloromethane (Chloroform), Dibromochloromethane, Bromodichloromethane, Tribromomethane (Bromoform))
Toxaphene (Camphechlor, Hercules 3956)
alpha-HCH (alpha-BHC, alpha-lindane, alpha-hexachlorocyclohexane, alpha-benzene hexachloride)
beta-HCH (beta-BHC, beta-hexachlorocyclohexane, alpha-benzene hexachloride)
cis-Permethrin (Ambush, Astro, Pounce, Pramex, Pertox, Ambushfog, Kafil, Perthrine, Picket, Picket G, Dragnet, Talcord, Outflank, Stockade, Eksmin, Coopex, Peregin, Stomoxin, Stomoxin P, Qamlin, Corsair, Tornade)
delta-HCH (delta-BHC, delta-hexachlorocyclohexane, delta-benzene hexachloride)
gamma-HCH (Lindane, gamma-BHC, Gammexane, Gexane, Soprocide, gamma-hexachlorocyclohexane, gamma-benzene hexachloride, gamma-benzene)
o,p'-Methoxychlor
p,p'-Methoxychlor (Marlate, methoxychlore)
trans-Permethrin (Ambush, Astro, Pounce, Pramex, Pertox, Ambushfog, Kafil, Perthrine, Picket, Picket G, Dragnet, Talcord, Outflank, Stockade, Eksmin, Coopex, Peregin, Stomoxin, Stomoxin P, Qamlin, Corsair, Tornade)
Trace elements
No non-detects
² Rates of detection are based on the number of analyses and detections in the Study Unit, not on national data. Rates of detection for herbicides and insecticides were computed by only counting detections equal to or greater than 0.01 µg/L in order to facilitate equal comparisons among compounds, which had widely varying detection limits. For herbicides and insecticides, a detection rate of ''<1%'' means that all detections are less than 0.01 µg/L, or the detection rate rounds to less than one percent. For other compound groups, all detections were counted and minimum detection limits for most compounds were similar to the lower end of the national ranges shown. Method detection limits for all compounds in these tables are summarized in Gilliom and others (in press).
³ Detections of these compounds are reliable, but concentrations are determined with greater uncertainty than for the other compounds and are reported as estimated values (Zaugg and others, 1995).