Table 4.  List of specific nutrients, pesticides, and volatile organic compounds analyzed in samples collected at intensive fixed sites

[MDL, method detection limit; mg/L, milligrams per liter; mg/L, micrograms per liter]

Nutrients1 MDL
(mg/L)

Pesticides2
(herbicides and
insecticides)

 MDL
(µg/L)

Volatile organic
compounds3

 MDL
(µg/L)
Nitrogen, ammonia, dissolved 0.015, .020 Acifluorfen

0.035

 Acetone

2.452
Nitrogen, ammonia plus organic, dissolved .20, .10 Alachlor

.002

 Acrolein

.716
Nitrogen, ammonia plus organic, total .20, .10 Aldicarb

.016

 Acrylonitrile

.613
Nitrogen, nitrite, dissolved .01 Aldicarb sulfone

.016

 Benzene

.016
Nitrogen, nitrite plus nitrate, dissolved .05 Aldicarb sulfoxide

.021

 Bromobenzene

.018
Phosphorus, total .01 Atrazine

.001

 Bromochloromethane

.022
Phosphorus, dissolved .01 Azinphos-methyl

.001

 Bromoform

.052
Phosphorus, orthophosphate, dissolved .01 Benfluralin

.002

 Bromomethane

.074
Bentazon

.014

 2-Butanone

.825
Bromacil

.035

 n-Butylbenzene

.093
Bromoxynil

.035

 sec-Butylbenzene

.024
Butylate

.002

 tert-Butylbenzene

.048
Carbaryl

.003

 Carbon disulfide

.04  
Carbofuran

.003

 Chlorobenzene

.014
Chloramben

.011

 Chlorodibromomethane

.091
Chlorothalonil

.035

 Chloroethane

.06  
Chlorpyrifos

.004

 Chloroform

.026
Clopyralid

.05  

 Chloromethane

.127
Cyanazine

.004

 3-Chloropropene

.098
2,4-D

.035

 2-Chlorotoluene

.021
Dacthal

.017

 4-Chlorotoluene

.028
2,4-DB

.035

 1,2-Dibromoethane

.018
DCPA

.002

 Dibromomethane

.025
p,p'-DDE

.006

 1,2-Dichlorobenzene

.024
Deethylatrazine

.002

 1,3-Dichlorobenzene

.027
Diazinon

.002

 1,4-Dichlorobenzene

.025
Dicamba

.035

 Dichlorobromomethane

.024
Dichlobenil

.02  

 trans-1,4-Dichloro-2-butene

.346
Dichlorprop (2,4-DP)

.032

 Dichlorodifluoromethane

.048
Dieldrin

.001

 1,1-Dichloroethane

.033
2,6-Diethylaniline

.003

 1,2-Dichloroethane

.067
Dinoseb

.035

 1,1-Dichloroethene

.022
Disulfoton

.017

 cis-1,2-Dichloroethene

.019
Diuron

.02  

 trans-1,2-Dichloroethene

.016
DNOC

.035

 1,2-Dichloropropane

.034
EPTC

.002

 1,3-Dichloropropane

.058
Esfenvalerate

.019

 2,2-Dichloropropane

.039
Ethalfluralin

.004

 1,1-Dichloropropene

.013
Ethoprop

.003

 cis-1,3-Dichloropropene

.046
Fenuron

.013

 trans-1,3-Dichloropropene

.067
Fluometuron

.035

 Diethyl ether

.085
Fonofos

.003

 Diisopropylether

.049
alpha-HCH

.002

 Ethylbenzene

.015
gamma-HCH (Lindane)

.004

 Ethyl tert-butyl ether (ETBE)

.027
3-Hydroxycarbofuran

.014

 Ethyl methacrylate

.139
Linuron

.002

 o-Ethyl toluene

.05  
Malathion

.005

 Hexachlorobutadiene

.071
MCPA

.05  

 Hexachloroethane

.181
MCPB

.035

 2-Hexanone

.373
Methiocarb

.026

 Isopropylbenzene

.016
Methomyl

.017

 p-Isopropyltoluene

.055
Methyl parathion

.006

 Methyl acrylate

.306
Metolachlor

.002

 Methyl acrylonitrile

.285
Metribuzin

.004

 Methyl tert-butyl ether (MTBE)

.056
Molinate

.004

 Methylene chloride

.191
1-Naphthol

.007

 Methyl iodide

.038
Napropamide

.003

 Methyl methacrylate

.175
Neburon

.015

 4-Methyl-2-pentanone (MIBK)

.187
Norflurazon

.024

 Naphthalene

.125
Oryzalin

.019

 tert-Pentyl methyl ether (TAME)

.056
Oxamyl

.018

 n-Propylbenzene

.021
Parathion

.004

 Styrene

.021
Pebulate

.004

 1,1,1,2-Tetrachloroethane

.022
Pendimethalin

.004

 1,1,2,2-Tetrachloroethane

.066
cis-Permethrin

.005

 Tetrachloroethene

.019
Phorate

.002

 Tetrachloromethane

.044
Picloram

.05  

 Tetrahydrofuran

.574
Prometon

.018

 1,2,3,4-Tetramethylbenzene

.115
Pronamide

.003

 1,2,3,5-Tetramethylbenzene

.12  
Propachlor

.007

 Toluene

.019
Propanil

.004

 1,2,3-Trichlorobenzene

.133
Propargite

.013

 1,2,4-Trichlorobenzene

.094
Propham

.035

 1,1,1-Trichloroethane

.016
Propoxur

.035

 1,1,2-Trichloroethane

.032
Simazine

.005

 Trichloroethene

.019
2,4,5-T

.035

 Trichlorofluoromethane (CFC 11)

.046
Tebuthiuron

.01  

 1,2,3-Trichloropropane

.035
Terbacil

.007

 1,1,2-Trichlorotrifluoroethane

.016
Terbufos

.013

 1,2,3-Trimethylbenzene

.062
Thiobencarb

.002

 1,2,4-Trimethylbenzene

.028
2,4,5-TP

.021

 1,3,5-Trimethylbenzene

.022
Triallate

.001

 Vinyl acetate

.631
Triclopyr

.05  

 Vinyl bromide

.05  
Trifluralin

.002

 Vinyl chloride

.056

meta- and para-Xylene

.032

ortho-Xylene

.032

1 U.S. Geological Survey National Water-Quality Laboratory schedule 2702.

2 U.S. Geological Survey National Water-Quality Laboratory schedules 2001, 2050.

3 U.S. Geological Survey National Water-Quality Laboratory schedule 2020.

 

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