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Sacramento River Basin NAWQA Program

Water-Quality Assessment of the Sacramento River
Basin, California: Water-Quality, Sediment and Tissue
Chemistry, and Biological Data, 1995-1998
(Open-File Report 2000-391)

Arcade Creek near Del Paso Heights, California

Pesticides in filtered (0.7 micrometer glass fiber filter) water measured by liquid
chromatography/ultraviolet light absorption spectrometry

Number of significant figures do not reflect analytical method
reporting levels.

Method reporting levels of all analytes

[µg/L - micrograms per liter, < - less than, E - estimate]

Date

Time

2,4,5-T (µg/L)

2,4-D (µg/L)

2,4-DB (µg/L)

Silvex (µg/L)

3-Hydroxycarbofuran (µg/L)

Acifluorfen (µg/L)

Aldicarb (µg/L)

Aldicarb Sulfone (µg/L)

Aldicarb Sulfoxide (µg/L)

Bentazon (µg/L)

Bromacil (µg/L)

Bromoxynil (µg/L)

Carbaryl (µg/L)

Carbofuran (µg/L)

Chloramben (µg/L)

Chlorothalonil (µg/L)

Clopyralid (µg/L)

Dacthal (µg/L)

Dicamba (µg/L)

Dichlobenil (µg/L)

Dichlorprop (µg/L)

Dinoseb (µg/L)

Diuron (µg/L)

DNOC (µg/L)

Fenuron (µg/L)

Fluometuron (µg/L)

Linuron (µg/L)

MCPA (µg/L)

MCP (µg/L)

Methiocarb (µg/L)

Methomyl (µg/L)

Neburon (µg/L)

Norfluorazon (µg/L)

Oryzalin (µg/L)

Oxamyl (µg/L)

Picloram (µg/L)

Propham (µg/L)

Propoxur (µg/L)

Triclopyr (µg/L)

11/26/96

1000

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

E2

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

0.13

12/10/96

1300

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

0.06

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.95

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

1/13/97

1100

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.64

<.630

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

1/29/97

0930

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.44

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

2/7/97

1030

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.5

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

2/21/97

0930

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

E11

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

3/7/97

0940

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

E7

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

E.1

<.018

<.05

<.035

<.035

<.05

3/21/97

1000

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

E5

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

4/10/97

1030

<.035

0.26

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

E.6

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.6

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

0.08

<.018

<.05

<.035

<.035

0.33

4/23/97

1200

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

E.6

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

E6

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

E.4

5/12/97

0900

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

0.09

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.5

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

0.12

<.018

<.05

<.035

<.035

<.05

5/23/97

1310

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

0.5

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.31

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

5/27/97

1020

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

0.3

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

E1.5

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

6/13/97

1020

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

0.3

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

1.4

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

6/26/97

0920

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.25

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

7/11/97

0900

<.035

0.16

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.18

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

0.27

7/21/97

0940

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.12

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

0.11

8/8/97

0910

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

<.02

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

8/29/97

1400

<.035

0.46

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

<.008

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.2

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

0.09

9/5/97

1000

<.035

0.16

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

E.07

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

<.02

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

0.27

10/8/97

0930

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

0.12

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

<.02

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

E3

10/17/97

1020

<.035

<.035

<.035

<.021

<.014

<.035

<.016

<.016

<.021

<.014

<.035

<.035

0.1

<.028

<.011

<.035

<.05

<.017

<.035

<.02

<.032

<.035

0.18

<.035

<.013

<.035

<.018

<.05

<.035

<.026

<.017

<.015

<.024

<.019

<.018

<.05

<.035

<.035

<.05

11/7/97

0940

<.035

0.42

<.24

<.021

<.014

<.035

<.55

<.1

<.021

<.014

<.035

<.035

<.008

<.12

<.42

<.48

<.23

<.017

<.035

<1.2

<.032

<.035

<.02

<.42

<.013

<.035

<.018

<.17

<.14

<.026

<.017

<.015

<.024

0.16

<.018

<.05

<.035

<.035

E2

11/14/97

0900

<.035

<.15

<.24

<.021

<.014

<.035

<.55

<.1

<.021

<.014

<.035

<.035

<.008

<.12

<.42

<.48

<.23

<.017

<.035

<1.2

<.032

<.035

0.58

<.42

<.013

<.035

<.018

<.17

<.14

<.026

<.017

<.015

<.024

1.5

<.018

<.05

<.035

<.035

<.25

12/19/97

0950

<.035

<.15

<.24

<.021

<.014

<.035

<.55

<.1

<.021

<.014

<.035

<.035

<.008

<.12

<.42

<.48

<.23

<.017

<.035

<1.2

<.032

<.035

0.26

<.42

<.013

<.035

<.018

<.17

<.14

<.026

<.017

<.015

<.024

<.31

<.018

<.05

<.035

<.035

<.25

1/9/98

0930

<.035

E.02

<.24

<.021

<.014

<.035

<.55

<.1

<.021

<.014

<.035

<.035

<.008

<.12

<.42

<.48

<.23

<.017

<.035

<1.2

<.032

<.035

0.14

<.42

<.013

<.035

E.03

<.17

<.14

<.026

<.017

<.015

<.024

0.38

<.018

<.05

<.035

<.035

<.25

3/9/98

1000

<.035

0.14

<.24

<.021

<.014

<.035

<.55

<.1

<.021

<.014

<.035

<.035

0.05

<.12

<.42

<.48

<.23

<.017

<.035

<1.2

<.032

<.035

0.74

<.42

<.013

<.035

<.018

<.17

<.14

<.026

<.017

<.015

<.024

<.31

<.018

<.05

<.035

<.035

<.25

4/23/98

1000

<.035

1.4

<.24

<.021

<.014

<.035

<.55

<.1

<.021

<.014

<.035

<.035

0.21

<.12

<.42

<.48

<.23

<.017

<.035

<1.2

<.032

<.035

0.73

<.42

<.013

<.035

<.018

0.06

<.14

<.026

<.017

<.015

<.024

<.31

<.018

<.05

<.035

<.035

<.25

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