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
compounds
3

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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