An Assessment of Pesticides in the

Lower Wabash River Basin and

Kankakee River Basin

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Office of Water Quality

Assessment Branch

February 2002

IDEM/032/02/028/2002

An Assessment of Pesticides

in the

Lower Wabash River Basin

And

Kankakee River Basin

Author

Ryan McDuffee, Environmental Scientist

Compilation and development of the final report was the primary responsibility of the Surveys Section

Arthur C. Garceau, Surveys Section Chief

INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT

OFFICE OF WATER QUALITY

ASSESSMENT BRANCH

SURVEYS SECTION

IDEM 032/02/028/2002

May 2002
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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NOTICE AND DISCLAIMER:

The Indiana Department of Environmental Management intends use of this document for the facilitation of

information exchange. Mention of pesticide trade names or other commercial products does not constitute

endorsement or recommendation of use.

When citing this document:

McDuffee R. 2002. An Assessment of Pesticides in the Lower Wabash River Basin and

Kankakee River Basin. Indiana Department of Environmental Management, Office of Water

Quality, Assessment Branch, Surveys Section, Indianapolis, Indiana. IDEM 032/02/028/2002.
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

iii

Abstract

The Assessment Branch has a Surface Water Quality Monitoring Strategy based on a 5-year rotating basin

schedule. One portion of this strategy is the Pesticide Monitoring Program. In 1999, the Lower Wabash River

and Kankakee River Basins were sampled to collect surface water samples to analyze for 145 toxic chemicals.

 These chemicals consisted of numerous pesticides (herbicides, insecticides, and fungicides), pesticide

degradation products, and industrial chemicals. All water samples were collected from April 5 through July

28, 1999. This time period was selected to represent the agricultural season when pesticide/herbicide

application was occurring most often. Between the two basins a total of 22 sampling locations were selected

for this project. Of these 22 locations, 15 were located in the Wabash River Basin, and the remaining 7

locations were in the Kankakee River Basin. Each sampling location was sampled once a week for 15 weeks

resulting in the collection of 330 total water samples for this project. The test method used to analyze various

toxic chemicals were SAS5 (Modified EPA test Method 525.2) for 144 chemicals, and EPA Test Method 547

to analyze for just one chemical, glyphosate. Of the 145 chemicals analyzed only 17 chemicals were detected.

 Of the 17 chemicals detected, herbicides represented 11 of them. Atrazine, metolachlor, and acetochlor were

the most represented of the 11 herbicides. The maximum concentrations reported for a single sample for each

of the three herbicides were atrazine, 89.0 ug/L on April 5 at Wabash River at Mount Carmel, IL (WLW040-

0001); metolachlor, 55 ug/L on April 6 at Prairie Creek near Lebanon (WSU020-0004); and acetochlor, 3.2

ug/L on May 24 at Busseron Creek near Carlisle (WBU160-0002).

The average concentrations, from the two basins combined, during the 15-week sampling season for atrazine,

metolachlor, and acetochlor were 3.03 ug/L, 1.28 ug/L, and 0.64 ug/L, respectively. Currently there are no

surface water quality standards set for these herbicides. Therefore, to evaluate the results, the Drinking Water

Standards, known as maximum contaminant level (MCL) were used. It should be understood the Drinking

Water MCL is set for finished drinking water, not for raw surface water. The MCL for the three herbicides

are as follows; atrazine, 3.0 ug/L; metolachlor, no MCL set; and acetochlor, 2.0 ug/L.

Based on herbicide concentrations found in ambient water, loading values for each herbicide were determined

at each sampling location. To assist in these calculations, crop acreage were determined for each sampling

location using Arcview®. The rates of application for the three herbicides were used to determine the amount

of each herbicide applied in every sampling location's respective watershed. This data were then used to

determine the percent runoff for atrazine, metolachlor, and acetochlor. The last downstream sampling location

on the Wabash River (WLW040-0001) had 3.1% (253,957 pounds) runoff out of approximately 8,301,210

pounds of atrazine applied, 0.2% (7,389 pounds) runoff out of 3,715,323 pounds of acetochlor applied, and

0.3% (12,940 pounds) runoff out of 4,755,597 pounds of metolachlor applied. The last downstream sampling

location on the Kankakee River (UMK110-0002) had negligible runoff of atrazine and metolachlor.

Acetochlor was not detected at this location.

There are no surface water intakes for drinking water located in either of the two watershed basins. It is

envisioned the information gathered on pesticide/herbicide loading and runoff in the Wabash River and

Kankakee River Basins will be useful for IDEM's Surface Water Quality Monitoring Program and the Drinking

Water Branch's Source Water Protection Program to protect Indiana's environment and human health.
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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TABLE OF CONTENTS

INTRODUCTION ...............................................................................................................................................1

STUDY AREA ....................................................................................................................................................1

LOWER WABASH RIVER BASIN ..............................................................................................................................1

Location.......................................................................................................................................................................... 1

Geology .......................................................................................................................................................................... 1

Land Use......................................................................................................................................................................... 2

Flow & Drainage .............................................................................................................................................................. 2

KANKAKEE RIVER BASIN......................................................................................................................................2

Location.......................................................................................................................................................................... 2

Geology .......................................................................................................................................................................... 2

Land Use......................................................................................................................................................................... 2

Flow & Drainage .............................................................................................................................................................. 2

MATERIALS AND METHODS...............................................................................................................................3

SAMPLING LOCATIONS........................................................................................................................................3

SAMPLING METHODOLOGY ...................................................................................................................................4

CHEMICAL ANALYSIS ..........................................................................................................................................7

QA/QC PROCEDURES ..........................................................................................................................................7

Precision and Accuracy..................................................................................................................................................... 7

Equipment Blanks ............................................................................................................................................................ 7

SELECTED PESTICIDE NARRATIVES .................................................................................................................10

ATRAZINE.....................................................................................................................................................10

GLYPHOSATE .................................................................................................................................................12

METOLACHLOR...............................................................................................................................................13

ACETOCHLOR.................................................................................................................................................13

CHLORPYRIFOS...............................................................................................................................................14

TERBUFOS ....................................................................................................................................................14

PENDIMETHALIN .............................................................................................................................................15

CYANAZINE ...................................................................................................................................................15

2,4-D.........................................................................................................................................................15

RESULTS AND DISCUSSIONS...........................................................................................................................16

RESULTS ......................................................................................................................................................16

QUALITY ASSURANCE MEASUREMENTS...................................................................................................................17

GENERAL OBSERVATIONS ..................................................................................................................................20

LOADING CALCULATIONS...................................................................................................................................21

ESTIMATED HERBICIDE USAGE ON CORN CROP ........................................................................................................26

ESTIMATED HERBICIDE USAGE ON SOYBEAN CROPS...................................................................................................27

RUNOFF CALCULATIONS ....................................................................................................................................29

TREND ANALYSIS ............................................................................................................................................30

DRINKING WATER CONCERNS.............................................................................................................................43

RECOMMENDATIONS AND CONCLUSIONS ........................................................................................................43

LITERATURE CITED ........................................................................................................................................44
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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LIST OF FIGURES

FIGURE 1 SAMPLING SITES IN THE LOWER WABASH RIVER BASIN............................................................................................................. 5

FIGURE 2 SAMPLING SITES IN THE KANKAKEE RIVER BASIN..................................................................................................................... 6

FIGURE 3 PERCENTAGE OF POUNDS OF SELECTED PESTICIDES APPLIED TO CORN AND SOYBEANS FOR INDIANA ................................................. 12

FIGURE 4 DATA QUALITY ASSESSMENT LEVELS .................................................................................................................................. 20

FIGURE 5 LOADING CONVERSION EQUATION AND EXAMPLE ................................................................................................................... 21

FIGURE 6 EXAMPLE OF THE TRAPEZOID RULE..................................................................................................................................... 22

FIGURE 7 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE UMI020-0002 (IROQUOIS RIVER AT ROSEBUD)................................. 32

FIGURE 8 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE UMI040-0001 (IROQUOIS RIVER AT FORESMAN)............................... 32

FIGURE 9 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE UMK080-0001 (KANKAKEE RIVER AT DUNN’S BRIDGE) ....................... 33

FIGURE 10 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE UMK110-0002 (KANKAKEE RIVER AT SHELBY) ................................ 33

FIGURE 11 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE UMK040-0003 (KANKAKEE RIVER AT DAVIS).................................. 34

FIGURE 12 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE UMK130-0001 (SINGLETON DITCH NEAR SCHNEIDER)...................... 34

FIGURE 13 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE UMK060-0001 (YELLOW RIVER AT KNOX) ..................................... 35

FIGURE 14 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WLV160-0002 (BIG RACCOON CREEK NEAR COXVILLE)..................... 35

FIGURE 15 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WLV170-0003 (BIG RACCOON CREEK NEAR FERNDALE) .................... 36

FIGURE 16 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WLV160-0002 (BIG RACCOON CREEK NEAR FINCASTLE).................... 36

FIGURE 17 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WBU160-0002 (BUSSERON CREEK NEAR CARLISLE) ......................... 37

FIGURE 18 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WSU020-0004 (PRAIRIE CREEK NEAR LEBANON)............................. 37

FIGURE 19 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WPA080-0002 (PATOKA RIVER NEAR PRINCETON)........................... 38

FIGURE 20 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WSU050-0006 (SUGAR CREEK AT CRAWFORDSVILLE)....................... 38

FIGURE 21 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WLV010-0002 (WABASH RIVER AT LAFAYETTE).............................. 39

FIGURE 22 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WBU150-0002 (WABASH RIVER AT RIVERTON) .............................. 39

FIGURE 23 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WWL100-0005 (WABASH RIVER AT PETERSBURG)........................... 40

FIGURE 24 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WLW040-0001 (WABASH RIVER AT MT. CARMEL, IL)...................... 40

FIGURE 25 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WBU200-0003 (WABASH RIVER AT VINCENNES)............................. 41

FIGURE 26 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WBU040-0003 (WABASH RIVER AT TERRE HAUTE).......................... 41

FIGURE 27 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WLV150-0003 (WABASH RIVER AT MONTEZUMA)............................ 42

FIGURE 28 CONCENTRATION OVER TIME OF SELECTED PESTICIDES AT SITE WLV080-0005 (WABASH RIVER AT COVINGTON)............................. 42

LIST OF TABLES

TABLE 1 LOWER WABASH RIVER BASIN PESTICIDES SAMPLING LOCATIONS AT USGS GAGING STATIONS.......................................................... 3

TABLE 2 KANKAKEE RIVER BASIN PESTICIDES SAMPLING LOCATIONS AT USGS GAGING STATIONS.................................................................. 4

TABLE 3 CHEMICALS ANALYZED BY SAS5 (MODIFIED EPA TEST METHOD 525.2)....................................................................................... 8

TABLE 4 CHEMICALS ANALYZED BY EPA TEST METHOD 547.................................................................................................................... 9

TABLE 5 MOST COMMONLY USED PESTICIDES AND ASSOCIATED INFORMATION......................................................................................... 11

TABLE 6 PRECISION MEASURED IN DUPLICATE SAMPLES...................................................................................................................... 18

TABLE 7 ACCURACY MEASURED IN SPIKED SAMPLES .......................................................................................................................... 19

TABLE 8 POUNDS PER DAY OF ATRAZINE FOR THE WABASH RIVER AND WHITE RIVER SAMPLE SITES ............................................................ 23

TABLE 9 POUNDS PER DAY OF METOLACHLOR FOR THE WABASH RIVER AND WHITE RIVER SAMPLE SITES...................................................... 23

TABLE 10 POUNDS PER DAY OF ACETOCHLOR FOR THE WABASH RIVER AND WHITE RIVER SAMPLE SITES ...................................................... 24

TABLE 11 POUNDS PER DAY OF ATRAZINE FOR THE KANKAKEE RIVER BASIN SAMPLE SITES ......................................................................... 24

TABLE 12 POUNDS PER DAY OF METOLACHLOR FOR THE KANKAKEE RIVER BASIN SAMPLE SITES ................................................................... 25

TABLE 13 POUNDS PER DAY OF ACETOCHLOR FOR THE KANKAKEE RIVER BASIN SAMPLE SITES ..................................................................... 25

TABLE 14 ESTIMATED HERBICIDE USAGE ON CORN CROPS PER CROP YEAR ............................................................................................. 27

TABLE 15 ESTIMATED HERBICIDE USAGE ON SOYBEAN CROPS PER CROP YEAR ......................................................................................... 28

TABLE 16 PERCENTAGE OF CONTRIBUTING TRIBUTARIES TO THE LOWER WABASH RIVER BASIN .................................................................... 29

TABLE 17 RAINFALL DATA FOR EACH WATERSHED BASIN DURING THE MONTHS OF APRIL-JULY.................................................................... 30

LIST OF APPENDICES

APPENDIX A FIELD DATA

APPENDIX B HERBICIDE CONCENTRATIONS AND STREAM FLOWS

APPENDIX C DESCRIPTIVE STATISTICS
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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Acknowledgments

- The U.S. Geological Survey allowed IDEM access to gaging stations and provided technical

expertise.

- U.S. EPA Region 5 initially funded this project for 2 years through a Clean Water Act, Section

319 Non-point source grant. Indiana funded the remaining 3 years.
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An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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INTRODUCTION

The 1999 pesticide monitoring program in ambient water was conducted with the following

objectives in mind:

1. Identify the occurrence and amount of selected pesticides and semi-volatile chemical

compounds in surface waters of the Lower Wabash River and Kankakee River Basins.

2. Provide benchmark information for long-term trend analysis and correlation with other

ambient monitoring programs within the State.

3. Determine which tributaries contribute the greatest pesticide load to Lower Wabash River

Basin and Kankakee River Basin.

4. Compare pesticides loading from individual sampling sites.

STUDY AREA

LOWER WABASH RIVER BASIN

Location

The Wabash River originates in northwestern Ohio. After it crosses the Indiana state line, near

New Corydon in Jay County Indiana, it cuts westward across the state then heads south

eventually forming the border between Indiana and Illinois. For the ease of management the

Indiana Department of Natural Resources divided the Wabash River into upper, middle, and

lower subbasins. This project focuses on the Middle and Lower Wabash River Basin. This

report will collectively describe these two subbasins as the Lower Wabash River Basin. This

section of Lower Wabash River Basin includes Lafayette just down stream of the Wildcat Creek

confluence down to the confluence of the Wabash River with the Ohio River (Greeman 1994).

Geology

The bedrock formations of the Lower Wabash River Basin are dominated by shale and sandstone

from the Pennsylvanian age with small portions of the upper part of the basin represented by

limestone, siltstone, sandstone, and shale dating to the Mississippian age, and limestone,

dolomite, and black shale from the Devonian age. The parent material is mainly thick loess

deposits to moderately thick loess over loamy glacial till. Along the main stem of the Wabash

River the parent material is alluvial and outwash deposits. The topography for the lower two

thirds of the basin is rolling plains underlain by loess, till, and bedrock; broad valley flats

underlain by thick deposits of alluvium, outwash, and lake deposits. The northern third of the

basin is described as having till plains and moraines of loam till, some southwest-oriented

drainage troughs and outwash features, grades to dissected Wabash Valley region (IDNR 1980).
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Land Use

The majority land use in the Lower Wabash River Basin is represented by 80% agricultural row

crops and pastures.

Flow & Drainage

The Wabash River drains 32,910 mi2 of Indiana, Illinois, and Ohio, and flows into the Ohio

River. The Upper Wabash River Basin includes the Wabash River from beyond the IndianaOhio state line downstream to Lafayette. The Upper Wabash River Basin drains 7,278 mi2 of

which 285 mi2 are in Ohio (Greeman 1994). The remainder of the basin from Lafayette to the

mouth of the Wabash drains an additional 25,632 mi2. The major tributaries that contribute to

this section of the Wabash River are Prairie Creek, Sugar Creek, Big Raccoon Creek, the

Vermilion River, Busseron Creek, Patoka River, White River, Embarrass River, and the Little

Wabash River (IDNR 1980).

KANKAKEE RIVER BASIN

Location

The Kankakee River originates in north central Indiana near South Bend. It drains part of three

states; Michigan, Indiana, and Illinois. This river flows in a westward direction for 104 miles

towards the town of Kankakee, IL. From here the Kankakee River travels in a northwestward

direction for 36 miles where it converges with the Des Plaines River to form the Illinois River. 

The Illinois River flows into the Mississippi River in the west central portion of Illinois. The

total drainage area for the Kankakee River is 2,989 mi2. The Indiana section of the basin has a

drainage area of 2,169 mi2. Michigan contributes only 7 mi2 to the basin, leaving 813 mi2 within

the Illinois border. This project will only concern the Indiana section of the Kankakee River

Basin.

Geology

The Kankakee River Basin's bedrock deposits are primarily limestone, dolomite, and black shale

dating from the Devonian era, with smaller portions containing dolomite and limestone from the

Silurian age, and limestone, siltstone, sandstone, and shale dating into the Mississippian age. 

The topography is basically split in half with low-lying sand and much outwash plain

interspersed with sheet and dune, windblown sand, and morainic ridges in the northern section of

the basin and plain with interspersed ice-disintegration forms, dunes, and lake flats in the

southern half of the basin.

Land Use

The Kankakee River Basin contains about 8% of Indiana's land area (IDNR 1990). The land area

is mostly represented by cropland with 89% of the land area represented with agricultural row

crops and pastures.

Flow & Drainage

The Kankakee River drains 2,989 mi2 of Indiana, Illinois, and Michigan. The Kankakee River
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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flows into Illinois where it converges with the Des Plaines River to form the Illinois River, which

is part of the Mississippi River Drainage. The Kankakee River has the flattest streambed slope in

Indiana averaging around 1 foot per mile. Some of the important tributaries to the Kankakee

River are Little Kankakee River, Yellow River, Singleton Ditch, Mill Creek, Hodge Ditch, and

Dehaan Ditch (IDNR 1990).

MATERIALS AND METHODS

SAMPLING LOCATIONS

Sampling locations were selected based on the presence of an active United States Geological

Survey (USGS) gaging station. These gaging stations provided instantaneous flow values, which

were needed for determining pesticide loading in streams. A complete list of the sampling

locations, the number assigned to the USGS gaging station, and the individual drainage areas, in

square miles from the Lower Wabash River and Kankakee River Basins are included in Tables 1

and 2.

Table 1 Lower Wabash River Basin Pesticides Sampling Locations at USGS Gaging Stations

Sampling

Site

Station

Location

USGS

Gage #

Drainage

Area mi2

WLW040-0001 Wabash River @ Mt. Carmel, IL 03377500 28,635

WPA080-0002 Patoka River nr Princeton 03376500 822

WWL100-0005 White River @ Petersburg 03374000 11,125

WBU200-0003 Wabash River @ Vincennes 03343000 13,706

WBU160-0002 Busseron Creek nr Carlisle 03342500 228

WBU150-0002 Wabash River @ Riverton 03342000 13,161

WBU040-0003 Wabash River @ Terre Haute 03341500 12,263

WLV190-0003 Big Raccoon Creek nr Coxville 03341300 448

WLV150-0001 Wabash River @ Montezuma 03340500 11,118

WLV170-0003 Big Raccoon Creek nr Ferndale 03340900 222

WLV160-0002 Big Raccoon Creek nr Fincastle 03340800 139

WSU050-0006 Sugar Creek @ Crawfordsville 03339500 509

WLV080-0005 Wabash River @ Covington 03336000 8,218

WSU020-0004 Prairie Creek nr Lebanon 03339280 33

WLV010-0002 Wabash River @ Lafayette 03335500 7,278
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Table 2 Kankakee River Basin Pesticides Sampling Locations at USGS Gaging Stations

Sampling

Site

Station

Location

USGS

Gage #

Drainage

Area mi2

UMI040-0001 Iroquois River nr Foresman 05524500 449

UMI020-0002 Iroquois River nr Rosebud 05526000 36

UMK130-0001 Singleton Ditch nr Schneider 05519000 123

UMK110-0002 Kankakee River @ Shelby 05518000 1,779

UMK080-0001 Kankakee River @ Dunns Bridge 05517500 1,352

UMK040-0003 Kankakee River nr Davis 05515500 537

UMK060-0001 Yellow River @ Knox 05517000 435

Maps displaying the watersheds sampled and sampling locations in each basin are shown in

Figures 1 and 2.

SAMPLING METHODOLOGY

Sampling consisted of collecting surface water grab samples from the center of flow at each

station. The grab samples were collected on a weekly basis, approximately seven days apart. A

sample collection apparatus was fabricated using two-four inch PVC pipes. The pieces of pipe

were cut to the size of the sample bottles and then connected together by plastic bolts. A rope

was attached to this apparatus and lowered from the bridge to collect water samples at each

location. The sample containers for SAS5 (Modified EPA Test Method 525.2) were acid rinsed,

glass, amber one-liter bottles. The apparatus was lowered and raised throughout the depth of the

water column. After the samples were collected, the sampling apparatus and the outside of the

sample bottles were decontaminated by rinsing with de-ionized water. Additionally at each site,

2- 40 mL vials preserved with thiosulfate were collected for EPA Test Method 547. All sample

containers were also provided by the contract laboratory. Field data were collected at each site at

the time of sampling with a Hydrolab®. It reported dissolved oxygen, pH, temperature,

conductivity, and turbidity.
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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Figure 1 Sampling Sites in the Lower Wabash River Basin

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WLV150-0001

WLV080-0005

WBU200-0003

WBU040-0003

WBU150-0002

WWL100-0005

WLV010-0002

WPA080-0002

WLV160-0002

WLV170-0003

WLV190-0003

WBU160-0002

WLW040-0001

WSU050-0006

WSU020-0004

Lower Wabash River Basin

Sampling Sites

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An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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Figure 2 Sampling Sites in the Kankakee River Basin

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UMK060-0001

UMK040-0003

UMK080-0001

UMK130-0001

UMK110-0002

UMI040-0001

UMI020-0002

Kankakee River Basin

Sampling Sites

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CHEMICAL ANALYSIS

The 1-liter water samples were analyzed for 144 chemicals using SAS5 (Modified EPA Test

Method 525.2), and the vials were analyzed for one chemical, glyphosate, using EPA Test

Method 547. A detailed list of chemicals and pesticide constituents analyzed for this project is

included in Tables 3 and 4. All samples were preserved by immediately placing the containers in

a cooler of ice to maintain a temperature of 4oC. The vials were additionally pre-preserved with

thiosulfate. All samples were delivered to a contract laboratory at the end of each week. 

Samples were not filtered before analysis. 

QA/QC PROCEDURES

To ensure QA/QC requirements were met, a single duplicate water sample and a single Matrix

Spike/Matrix Spike Duplicate were collected during each sampling route. All water sample

results qualified for Data Quality Assessment (DQA) level 3 (Figure 3) according to the Quality

Assurance Project Plan (QAPP) (Bowren and GhiasUddin 1999). Data falling under this category

is considered as complete and is used for regulatory decisions.

Analytical results included QC check samples for each batch of samples from which precision,

accuracy, and completeness were determined. Detection limits were determined using 40 CFR

Part 136 Appendix B, Revision 1.11. Raw data, chromatograms, spectrograms, and bench sheets

were not included as part of the analytical reports received by the Quality Assurance Officer, but

have been maintained by the Contract Laboratory for easy retrieval and review.

Precision and Accuracy

Pesticide analysis precision is judged by laboratory duplicates, Matrix Spike (MS) and Matrix

Spike Duplicates (MSD). A precision goal of +/-20% Relative Percent Difference (RPD) is

expected to be met with for all pesticide analyses.

Quality assurance for analytical accuracy is based by comparison of % Recovery from MS/MSD

samples. The accuracy goal is set by Environmental Health Laboratories using Laboratory

Fortified Blank recovery control ranges for each parameter. The control ranges were derived

from the mean and +/- 3 standard deviations of at least 30 data points, checked using the Grubbs

Outlier Test.

Equipment Blanks

Non-contamination of equipment will be determined from equipment blank sample analysis. To

accomplish equipment blanks reagent water was exposed to sampling equipment in the field. 

The equipment blanks will be used to assess for any contamination.
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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Table 3 Chemicals analyzed by SAS5 (Modified EPA Test Method 525.2)

CAS

Number Compound

Reporting

Limits -

μg/L

90-12-0 1-Methylnaphthalene 0.1

52663-71-5 2,2',3,3',4,4',6-

Heptachlorobiphenyl

0.5

40186-71-8 2,2',3,3',4,5',6,6'-

Octachlorobiphenyl

0.5

60233-25-2 2,2',3',4,6-Pentachlorobiphenyl 0.1

60145-22-4 2,2',4,4',5',6-Hexachlorobiphenyl 0.1

2437-79-8 2,2',4,4'-Tetrachlorobiphenyl 0.1

16605-91-7 2,3-Dichlorobiphenyl 0.1

15862-07-4 2,4,5-Trichlorobiphenyl 0.1

606-20-2 2,6-Dinitrotoluene 0.5

2051-60-7 2-Chlorobiphenyl 0.1

91-57-6 2-Methylnaphthalene 0.1

72-54-8 4,4'-DDD 0.1

72-55-9 4,4'-DDE 0.1

50-29-3 4,4'-DDT 0.1

208-96-8 Acenaphthylene 0.1

34256-82-1 Acetochlor 0.1

15972-60-8 Alachlor 0.1

309-00-2 Aldrin 0.1

319-84-6 Alpha-BHC 0.1

834-12-8 Ametryn 0.1

101-05-3 Anilazine 1

120-12-7 Anthracene 0.1

3244-90-4 Aspon 0.1

1610-17-9 Atraton 0.1

1912-24-9 Atrazine (Aatrex) 0.1

86-50-0 Azinphos-methyl 0.5

1861-40-1 Benfluralin 0.1

56-55-3 Benzo[a]anthracene 0.1

50-32-8 Benzo[a]pyrene 0.02

205-99-2 Benzo[b]fluoranthene 0.1

191-24-2 Benzo[g,h,i]perylene 0.1

207-08-9 Benzo[k]fluoranthene 0.1

319-85-7 Beta-BHC 0.1

35400-43-2 Bolstar 0.1

314-40-9 Bromacil 0.1

23184-66-9 Butachlor 0.1

2008-41-5 Butylate (Sutan Plus) 0.1

85-68-7 Butylbenzylphthalate 1

5234-68-4 Carboxin 0.1

5103-71-9 Chlordane, Alpha- 0.1

5103-74-2 Chlordane, Gamma- 0.1

510-15-6 Chlorobenzilate 0.1

2675-77-6 Chloroneb 0.1

1437871 Chloropropylate 0.1

CAS

Number Compound

Reporting

Limits -

μg/L

1897-45-6 Chlorothalonil (Bravo) 0.1

101-21-3 Chlorpropham 0.1

2921-88-2 Chlorpyrifos 0.1

218-01-9 Chrysene 0.1

81777-89-1 Clomazone 0.1

56-72-4 Coumaphos 0.1

21725-46-2 Cyanazine (Bladex) 0.1

1134-23-2 Cycloate 0.1

1861-32-1 DCPA 0.1

319-86-8 Delta-BHC 0.1

298-03-3 Demeton O 0.5

6190-65-4 Desethylatrazine 1

1007-28-9 Desisopropylatrazine 1

103-23-1 Di(2-ethylhexyl)adipate 0.6

117-81-7 Di(2-ethylhexyl)phthalate 0.6

333-41-5 Diazinon 0.1

53-70-3 Dibenzo(a,h)anthracene 0.1

1194-65-6 Dichlobenil 0.1

97-17-6 Dichlofenthion 0.1

99-30-9 Dichloran 0.5

62-73-7 Dichlorvos 0.1

60-57-1 Dieldrin 0.1

84-66-2 Diethylphthalate 1

60-51-5 Dimethoate 0.5

131-11-3 Dimethylphthalate 1

84-74-2 Di-n-butyl Phthalate 2

117-84-0 Di-n-octyl Phthalate 2

957-51-7 Diphenamid 0.1

298-04-4 Disulfoton 0.1

218208 Disulfoton Sulfone 0.1

944-22-9 Dyfonate 0.1

959-98-8 Endosulfan I 0.1

33213-65-9 Endosulfan II 0.1

1031-07-8 Endosulfan sulfate 0.1

72-20-8 Endrin 0.01

7421-93-4 Endrin aldehyde 0.5

759-94-4 EPTC 0.1

55283-68-6 Ethalfluralin 0.1

563-12-2 Ethion 5

13194-48-4 Ethoprop 0.1

2593-15-9 Etridiazole 0.1

52-85-7 Famphur 0.1

22224-92-6 Fenamiphos 0.1

55-38-9 Fenthion 0.1

69806-50-4 Fluazifop-butyl 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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CAS

Number Compound

Reporting

Limits -

μg/L

33245-39-5 Fluchloralin 0.1

2164-17-2 Fluometuron 0.5

206-44-0 Fluoranthene 0.1

86-73-7 Fluorene 0.1

76-44-8 Heptachlor 0.04

1024-57-3 Heptachlor Epoxide 0.02

118-74-1 Hexachlorobenzene 0.1

77-47-4 Hexachlorocyclopentadiene 0.1

51235-04-2 Hexazinone 0.1

193-39-5 Indeno[1,2,3-cd]pyrene 0.1

78-59-1 Isophorone 0.1

21609-90-5 Leptophos 0.5

58-89-9 Lindane 0.02

121-75-5 Malathion 0.1

150-50-5 Merphos 0.1

72-43-5 Methoxychlor 0.1

950-35-6 Methyl Paraoxon 0.5

51218-45-2 Metolachlor 0.1

21087-64-9 Metribuzin 0.1

7786-34-7 Mevinphos 0.1

113-48-4 MGK 264, isomers a & b 0.1

136-45-8 MGK 326 0.1

2212-67-1 Molinate 0.1

6923-22-4 Monocrotophos 0.5

91-20-3 Naphthalene 0.1

15299-99-7 Napropamide 0.1

19666-30-9 Oxadiazon 0.1

1114-71-2 Pebulate 0.1

40487-42-1 Pendimethalin 0.1

87-86-5 Pentachlorophenol 1

61949-76-6 Permethrin, cis 0.1

51877-74-8 Permethrin, trans 0.1

85-01-8 Phenanthrene 0.1

298-02-2 Phorate 0.1

26399-36-0 Profluralin 0.1

1610-18-0 Prometon 1

7287-19-6 Prometryn 0.1

23950-58-5 Pronamide 0.1

1918-16-7 Propachlor 0.1

709-98-8 Propanil 0.5

139-40-2 Propazine 0.1

129-00-0 Pyrene 0.1

122-34-9 Simazine 0.07

1014-70-6 Simetryn 0.1

22248-79-9 Stirofos 0.1

5902-51-2 Terbacil 0.1

13071-79-9 Terbufos 0.5

886-50-0 Terbutryn 0.1

28249-77-6 Thiobencarb 0.1

CAS

Number Compound

Reporting

Limits -

μg/L

297-97-2 Thionazin 0.5

39765-80-5 trans-Nonachlor 0.1

43121-43-3 Triadimefon 0.5

78-48-8 Tribufos 0.1

1582-09-8 Trifluralin 0.1

1929-77-7 Vernolate 0.1

Table 4 Chemicals analyzed by EPA Test

Method 547

CAS

Number Compound

Reporting

Limits -

μg/L

1071-83-6 Glyphosate 6.0
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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SELECTED PESTICIDE NARRATIVES

Table 5 lists the ten most commonly used pesticides in Indiana along with their brand names,

target crop, MCL, and the number of times that the pesticide was identified above the minimum

reporting limit and the number of times it exceeded the Finished Drinking Water MCL.

The National Agricultural Statistics Service (NASS) reports that 6.67 million pounds of atrazine,

3.84 million pounds of metolachlor, 2.94 million pounds of acetochlor, and 0.45 million pounds

of chlorpyrifos were applied to 5.8 million acres of corn in Indiana during 1999. In addition,

4.43 million pounds of glyphosate, 0.22 million pounds of metolachlor, 0.18 million pounds of

2,4-D were applied to 5.6 million acres of soybeans in 1999 (NASS 2000). Figure 3 represents

the data provided by NASS by listing the percent of individual pesticide pounds to the sum of all

applied pesticide pounds.

Further details and a limited list of their associated brand names for the ten most commonly used

pesticides are discussed in the following text.

ATRAZINE

Brand Name(s): AATREX, BICEP, EXTRAZINE, BULLET, LARIAT, SURPASS and

GUARDSMAN

Atrazine, a triazine derivative (Carter, Lydy, and Crawford 1995), is a restricted use pesticide

with a toxicity rating of III (moderately toxic). Atrazine has been produced by Syngenta

(formally Novartis, which was formally Ciba Corporation) since 1958. It is used as a

preemergent and postemergent herbicide to control broadleaf and grassy weeds for corn

production. Atrazine is used to kill weeds by inhibiting the photosynthetic process in targeted

plants. The soil absorption is moderate, and the biological degradation for aerobic conditions is

about 146 days and 159 days for anaerobic conditions. The persistence of atrazine in the field is

about 60 days, making this a very effective herbicide, but it can persist in the soil for more than a

year in arid environmental conditions and high soil pH (Ahrens 1994). Atrazine was the most

used pesticide in Indiana, with an estimated 6.67 million pounds applied to 91% of the 5.8

million acres of corn at an application rate of 1.26 pounds per acre in1999 (NASS 2000). 

Atrazine is listed in the Federal Register's Water Quality Criterion with an acute criterion of 350

ug/L and a chronic criterion of 12 ug/L (Federal Register 2001). It is considered a possible

human carcinogen. It has been found to cause tumors in mammary glands and other reproductive

organs in laboratory animals, and has a low-level bioaccumulation in fish. It has been categorized

as a possible endocrine disruptor (ORSANCO 1997).
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Table 5 Most Commonly Used Pesticides and Associated Information

Common Name Brand Name

Crop receiving

treatment

MRL*/

MCL**

Acetochlor Harness and Surpass Corn 0.1ug/L 

2 ug/L

Atrazine Aatrex Corn and Sorghum 0.1 ug/L

3 ug/L

Chlorpyrifos Dursban, Empire,

Lorsban, Brodan,

Detmol UA

Can be used on all types of

crops

0.1 ug/L

NA

Clomazone Command,

Commence, and

Merit

Soybean 0.1 ug/L

NA

Cyanazine Bladex and Fortrol Corn, Sorghum, wheat 0.1ug/L

NA

Glyphosate Roundup, Rodeo,

Landmaster, Sting

Soybean 6.0 ug/L

700 ug/L

Metolachlor Dual and Pennant Corn, Soybeans, Potatoes

and Sorghum

0.1 ug/L

NA

Pendimethalin Prowl, Squadron,

Stomp

Soybean 0.1 ug/L

NA

Terbufos Aragran, Conrtaven,

Counter, and Plydox

Corn 0.1 ug/L

0.2 NA

2,4-D Justice, Lawn-Keep,

Miracle

Soybean NA

70 ug/L

 *Minimum Reporting Limit (MRL) is established by the contract laboratory as the lowest analyte concentration that

can be quantified and reported by the laboratory. The MRL is set at or above the lowest calibration standard which

is included in all analyses.

**Maximum Contaminant Level (MCL) is for finished drinking water. Currently there are no surface water

standards established for the listed pesticides in unfinished surface water. The MCL is presented as a reference point

for this study.
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GLYPHOSATE

Brand Name(s): SILHOUETTE, RATTLER, ROUNDUP, RODEO and TOUCHDOWN

Glyphosate is a general use pesticide and is not part of any accepted chemical family. It has a

toxicity rating of II (very toxic). Glyphosate is manufactured by several companies including

Monsanto, Cenex/Land O=Lakes, Helena and Zeneca. Glyphosate is usually mixed with a salt and

another herbicide to create an effective product. It is used as both a preemergent and a

postemergent herbicide. Glyphosate is a broad-spectrum, non-selective systemic herbicide used

for control of annual and perennial plants including grasses, sedges, broad-leaved weeds, and

woody plants. It rapidly absorbs to all soils, degrades microbially in soil and has a low potential

for movement by runoff in field and lab studies (Ahrens 1994). About 4.43 million pounds of

glyphosate were applied to 76% of the 5.60 million acres of soybeans at an application rate of

1.04 pounds per acre, and about 0.14 million pounds of glyphosate were applied to 5% of 5.8

million acres of corn at an application rate of 0.47 pounds per acre in 1999 (NASS 2000).

Figure 3 Percentage of Pounds of Selected Pesticides Applied to Corn and Soybeans for Indiana

1999 Indiana Pesticide Usage for Corn and Soybeans

Data Provided by National Agricultural Statistics Service

Percentage of Reported Total Pounds Applied in Indiana

Atrazine, 31.9 %

Others, 8.6 %

Terbufos, 2.0 %

Chlorpyrifos, 2.2 %

Acetochlor, 14.1 %

Metolachlor, 19.4 %

Glyphosate, 21.8 %
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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METOLACHLOR

Brand Name(s): DUAL

Metolachlor, a chloroacetamide class of herbicide (Carter, Lydy, and Crawford 1995), is a

general use pesticide, and has a class III toxicity rating. It can be a restricted use pesticide when

paired with atrazine or cyanazine. Ciba Corporation, now known as Syngenta, first produced

metolachlor in 1972. It is applied as a preemergent as well as a postemergent herbicide to control

broadleaf weeds, grasses, and yellow nutsedge in corn and soybean fields for about 10-14 weeks.

Metolachlor is moderately absorbed to soil and prefers muck, clay and organic matter. The

compound’s photo degradation period is about 70 days. It aerobically degrades in about 67 days

and anaerobically in 81 days (Ahrens 1994). Metolachlor was the third most used pesticide in

Indiana (NASS 2000). There was an estimated 3.84 million pounds applied to 47% of the 5.8

million acres of corn at an application rate of 1.41 pounds per acre, and an additional 0.22

million pounds applied to 2% of the 5.6 million acres of soybeans at an application rate of 1.95

pounds per acre in 1999.

ACETOCHLOR

Brand Name(s): HARNESS, GUARDIAN, and SURPASS

Acetochlor, manufactured by Monsanto and Zeneca, is a restricted use pesticide and has a

toxicity class rating I (highly toxic). Acetochlor is a member of the chloroacetamide chemical

family. It is used to control grasses, some broadleaf weeds, and yellow nutsedge in corn. The

U.S. Environmental Protection Agency (USEPA) conditionally registered acetochlor in 1994. 

This was due to the broad-spectrum weed control provided by acetochlor and low labeled use

rates. The USEPA expects that use of acetochlor will significantly reduce total amounts of

herbicides used in the United States. The continued registration of acetochlor is conditional

based on the targeted use reductions of the herbicides alachlor, atrazine, butylate, EPTC,

metolachlor, and 2,4-D. Acetochlor has chemical properties similar to alachlor and metolachlor,

and has been classified by the USEPA as a probable human carcinogen.

Registration of acetochlor will be canceled automatically if there is a violation of any of the

following conditions:

• reductions in the use of other broad-spectrum herbicides are not met

• measured concentrations of acetochlor in groundwater consistently exceed 0.1

micrograms per liter (ug/L) at a large number of wells or

• exceed 1.0 ug/L in groundwater at a small number of wells.

Also the annual average concentration of acetochlor cannot exceed 2.0 ug/L in the surface water

supply of a specified number of community water systems (Crawford 1997).

Acetochlor is readily absorbed by soil and is degraded by microbes. Generally, acetochlor

provides 8-12 weeks of preemergent weed control, but can vary depending on soil type and

weather conditions (Ahrens 1994). Rainfall totals of 0.3-0.6 inches will activate acetochlor 7-10
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

14

days after application, and it is most active on heavy or high organic matter soils (Thomson

1993). Acetochlor was the fourth most used pesticide in Indiana during 1999 with 2.94 million

pounds applied. Based on the recent USGS report on acetochlor and statistics from NASS, the

use of acetochlor over the past several years has increased. In 1997 NASS reported acetochlor

was used on only 15% of 6 million corn acres of Indiana. Acetochlor was applied to 31% of the

5.80 million corn acres planted at an application rate of 1.64 pounds per acre in 1999 (NASS

2000).

CHLORPYRIFOS

Brand Name(s): DURSBAN, LORSBAN, BRODAN, DETMOL UA, DOWCO 179, EMPIRE,

ERADEX, PAQEANT, PIRIDANE, SCOUT, and STIPEND.

Chlorpyrifos, a general use pesticide depending on the toxicity of the formulation. It belongs to

the organophosphate chemical family, and has a toxicity class of II. The manufacturer of

chlorpyrifos is Dow Agra

Chlorpyrifos is a broad-spectrum organophosphate insecticide. It was originally used to control

mosquitoes, it is no longer registered for that use. It is an effective control for cutworms, corn

rootworms, cockroaches, grubs, flea beetles, flies, termites, fire ants, and lice. It is used in

agricultural, lawns and ornamental settings. It is also applied to livestock, domestic dwellings,

and commercial establishments as an insecticide. It is primarily a contact poison, with some

action as a stomach poison. It was the fith most used pesticide in 1999 with 0.45 million pounds

applied to 7% of the 5.8 million acres of corn at an application rate of 1.12 pounds per acre

(NASS 2000).

TERBUFOS

Brand Name(s): ARAGRAN, CONTRAVEN, COUNTER, and PLYDOX

Terbufos, a member of the organophosphate chemical family, is a restricted use pesticide only in

products with 15% or more active ingredient. It is classified as toxicity class I, highly toxic. 

Terbufos is an insecticide and nematicide used on corn. It is used to control wireworms,

seedcorn maggots, white grubs, corn rootworm larvae, and other pests. Terbufos is extremely

toxic to birds, mammals, fish, and aquatic invertebrates. There is no known effects on the

reproductive systems or teratogenic, mutagenic, or carcinogenic effects to laboratory animals. 

Terbufos is moderately persistent in soil. Degradation is rapid in the first 15-30 days after

application. It dissipates quicker in soils with very low organic carbon. Soil temperature

increases the time of degradation, and soil moisture has no effect on terbufos. It is generally

immobile and is therefore unlikely to leach out of the area applied. In one study, over 90% of the

applied terbufos was recovered in the top 4 inches of a soil profile despite heavy rainfall (Oregon

State University 1996). Terbufos was the sixth most used pesticide in 1999. It was applied to

8% of the 5.8 million acres totaling 0.42 million pounds at an application rate of 0.91 pounds per

acre (NASS 2000).
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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PENDIMETHALIN

Brand Name(s): PROWL, PURSUIT, SQUADRON, SOUTHERN WEEDGRASS CONTROL and 

ORNAMENTAL HERBICIDE II

Pendimethalin, a member of the dinitroaniline chemical family (Carter, Lydy, and Crawford

1995), is a general use pesticide and is manufactured by two companies, American Cyanamid

and Scotts. It has a toxicity rating of III. The intended use of the chemical is for controlling

grasses and certain broadleaf weeds. It is used in both preemergent and postemergent

applications. Pendimethalin can be applied in liquid fertilizer, or impregnated on dry bulk

fertilizer. This compound is strongly absorbed by clay and organic matter. Degradation is rapid

under anaerobic conditions and slow under aerobic conditions. Pendimethalin is immobile when

strongly bound to clay and organic matter. Most pendimethalin washed into surface water via

sediment will remain bound to sediment and unavailable to aquatic life (Ahrens 1994). 

Approximately 0.36 million pounds of pendimethalin was applied to 8% of the 5.60 million acres

of soybeans at an application rate of 0.81 pounds per acre in 1999 (NASS 2000). Pendimethalin

was not detected during the study. It was the seventh most used pesticide in 1999.

CYANAZINE

Brand Name(s): BLADEX

Cyanazine is a restricted use pesticide and is part of the triazine chemical family (Carter, Lydy,

and Crawford 1995) with a toxicity rating of III. Cyanazine was developed by DuPont in 1971

for use on corn to control broadleaf and grassy weeds. Cyanazine is the eighth most used

herbicide in Indiana, with an estimated 0.32 million pounds applied to 3% of the 5.8 million

acres of corn in Indiana at an application rate of 1.89 pounds per acre in 1999 (NASS 2000). 

DuPont has agreed to phase out cyanazine completely in response to a special review of the

herbicide by the USEPA concerning chronic cyanazine exposure and the risk of cancer,

occurrence in groundwater, and its teratogenicity. The manufacturer chose to phase out

cyanazine voluntarily due to the costly review process. The phase out will begin by reducing the

manufacturer’s recommended application rates. All sales and distribution by DuPont were

banned December 31, 1999. Retailers will be permitted to sell existing stocks through

September 1, 2002, with all use prohibited after December 31, 2002 (ORSANCO 1997).

Cyanazine inhibits photosynthesis of broadleaf weeds and several grasses. It can be used as a

preemergent or postemergent herbicide. Cyanazine=s absorption increases when water content in

soil is low and organic matter is high (Ahrens 1994). Cyanazine is part of the triazine family

along with simazine and atrazine. This corn herbicide is not used nearly as much as atrazine but

is still an effective herbicide.

2,4-D

 Brand Name(s): TILLER, NAVIGATE, CLASS, WEED-PRO 4 AMINE, JUSTICE, WARRANT,
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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BARRAGE, and CAMPAIGN

2,4-D is a general use pesticide with a toxicity rating of III, and belongs to the chlorinated

phenoxy chemical family (Carter, Lydy, and Crawford 1995). It is a foliar-applied herbicide used

to control many broadleaf weeds such as pigweed, ragweed, cocklebur and others with little or no

activity against grasses. It is also labeled for aquatic weed control, specifically for Eurasian

water milfoil, water hyacinth, bulrush, bladderwort, and water lily. 2,4-D is exclusively used for

postemergent applications. Many different companies manufacture 2,4-D. They include

AgrEvo, AGSCO, Applied Biochemists, Cenex, Cornbelt, DowElanco, Farmland, Helena,

Monsanto and others.

2,4-D undergoes degradation via microbial breakdown in warm, moist soil. The rate of

breakdown increases with increased temperatures and moisture. The average field half-life is 10

days. There is a potential for mobility, but rapid degradation in soil and removal from soil by

plant uptake minimizes leaching (Ahrens 1994). Approximately 0.17 million pounds of 2,4-D

were applied to 8% of the 5.60 million acres of soybeans at an application rate of 0.39 pounds

per acre. An additional 0.12 million pounds was applied to 6% of the 5.80 million acres of corn

planted in 1999 with an application rate of 0.34 pounds per acre (NASS 2000). 2,4-D was not

included among the analytes in the test method used for this study.

RESULTS AND DISCUSSIONS

This pesticides monitoring report is based on the following assumptions.

1. All conclusions are based on a sampling frequency of a seven-day

cycle.

2. Land use coverage is based on U.S. Geological Survey 1994

publication (USGS 1994).

3. Loading calculations were made assuming concentrations and flow

rates remained constant throughout the day.

RESULTS

Analytical results for individual chemicals detected above the Minimum Reporting Limit (MRL)

from SAS5 (Modified EPA Test Method 525.2) from each sampling location and sampling event

are listed in Appendix A. There is no data reported for EPA Test Method 547 due to no

detection above the MRL. All field data (date, time, DO, pH, temperature, specific conductance,

turbidity, and flow) are in Appendix B.

Among the 145 toxic chemicals analyzed, only seventeen were detected. Of the seventeen

chemicals detected eleven were herbicides (acetochlor, alachlor, atrazine, bromacil, clomazone,

cyanazine, metolachlor, metribuzin, prometryn, simazine, and terbutryn), two were fungicides

(chloroneb and chlorothalonil), one insecticide (gamma-BHC), and three industrial chemicals

(di-n-butylphthalate, di(2-ethylhexyl)phthalate, and dimethylphthalate). The three chemicals that
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

17

were detected most often were all herbicides. These three herbicides were atrazine, acetochlor,

and metolachlor. 

QUALITY ASSURANCE MEASUREMENTS

In-lab data quality assurance or analytical precision was based on laboratory duplicates, Matrix

Spike, Matrix Spike Duplicates, and Relative Percent Difference (RPD). The overall precision

based on average RPD for all the analyses, was 6.2% which was within the +/-20% acceptable

required limits. The analytical precision data for acetochlor, atrazine, and metolachlor is listed in

Table 6.

In-lab data analytical accuracy was based by comparison of percent recovery from MS/MSD

samples. The accuracy goal was set by Environmental Health Laboratories using Laboratory

Fortified Blank recovery control ranges for each parameter. The control ranges were derived

from the mean and +/-3 standard deviations of at least 30 data points, checked using the Grubbs

Outlier Test. The overall percent recovery was 103.4%. The analytical accuracy data for

acetochlor, atrazine, and metolachlor is included in Table 7. The analytical performance for this

project based on the precision and accuracy in the Environmental Health Laboratories analytical

laboratory demonstrated that analytical data generated for this project was precise and could be

used for any regulatory or water quality management decisions. 

Field data quality of field sampling techniques were monitored with the equipment or source

blanks and field duplicates. The quality control data, showed that the overall precision expressed

as Relative Percent Difference of the field duplicates was 29.2%. This data is included in Table

6.

Figure 4 defines the four levels of Data Quality Assessment (DQA). All laboratory data for this

project met DQA Level 3.
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Table 6 Precision Measured in Duplicate Samples

Acetochlor Atrazine Metolochlor

Survey EHL Field Dupl MS/MSD(2) Field Dupl MS/MSD(2) Field Dupl MS/MSD(2)

Week Report # RPD(1) % RPD(1) RPD(1) % RPD(1) RPD(1) % RPD(1)

04/05/99 400886-933 * ** * 6.2 * 2.5

04/26/99 405874-924 200.0 5.2 81.5 ** 28.6 **

05/03/99 407406-56 0.0 ** 61.5 0.5 0.0 3.9

05/10/99 408689-738a 0.0 ** 0.0 ** 0.0 **

05/17/99 410399-449 22.2 5.0 10.5 ** 11.8 **

05/24/99 411730-780 0.0 ** 6.5 4.2 0.0 4.8

05/31/99 413307-357 0.0 ** 13.3 ** 0.0 **

06/07/99 414855-905 0.0 ** 200.0 ** 0.0 **

06/14/99 416991-7041 0.0 16.7 83.9 3.6 46.2 23.0

06/21/99 418668-718 0.0 ** 14.3 ** 200.0 **

06/28/99 420419-69 0.0 5.1 0.0 3.5 0.0 3.4

07/05/99 421947-97 0.0 ** 62.1 ** 18.2 **

07/12/99 423348-98 * 10.4 * 11.5 * 8.8

07/19/99 424797-847 0.0 ** 33.3 ** 0.0 **

07/26/99 426551-601 0.0 2.1 28.6 0.7 15.4 1.9

Parameter Average 17.1 7.4 45.8 4.3 24.6 6.9

Study Average 29.2 6.2 29.2 6.2 29.2 6.2

(1) Relative Percent Difference

(2) Matrix Spike/Matrix Spike Duplicate

* indicates field duplicate sample either not collected or lost

** indicates parameter not included in the MS/MSD spike added by the laboratory
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

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Table 7 Accuracy Measured in Spiked Samples

Acetochlor Atrazine Metolochlor

Survey EHL MS(1) MSD(2) MS MSD MS MSD

Week Report # % Recov % Recov % Recov % Recov % Recov % Recov

04/05/99 400886-933   89.3 95.1 93.9 96.3

04/26/99 405874-924 109.6 116.2 **  **  

05/03/99 407406-56 **  ** 103.5 102.5 104.8 110.0

05/10/99 408689-738a   **  **  

05/17/99 410399-449 97.9 102.9 **  **  

05/24/99 411730-780 **  ** 93.3 108.7 93.7 99.1

05/31/99 413307-357   **  **  

06/07/99 414855-905 **  **   **  **

06/14/99 416991-7041 78.5 99.5 99.9 112.3 84.3 108.0

06/21/99 418668-718   **  **  

06/28/99 420419-69 83.3 88.4 103.6 111.0 100.2 103.8

07/05/99 421947-97 **  **   **  **

07/12/99 423348-98 105.5 94.8 121.2 105.7 103.4 94.7

07/19/99 424797-847   **  **  

07/26/99 426551-601 121.8 119.4 119.9 120.8 118.1 120.4

Parameter Average 99.4 103.5 104.4 108.0 99.8 104.6

Study Average 101.3 105.5 101.3 105.5 101.3 105.5

(1) Matrix Spike

(2) Matrix Spike Duplicate

**  indicates parameter not included in the MS/MSD spike added by the laboratory
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

20

Data Quality Level Description

Level 1

Screening data

The results are usually generated onsite and have no QC checks. Analytical

results, which have no QC checks or no precision or accuracy information or

no detection limit calculations, but just numbers, are included in this category.

 Primarily, onsite data are used for presurveys and for preliminary rapid

assessment.

Level 2

Field analysis data

Data is recorded in the field or laboratory on calibrated or standardized

equipment. Field duplicates are measured on a regular periodic basis. 

Calculations may be done in the field or later at the office. Analytical results,

which have limited QC checks, are included in this category. Detection limits

and ranges have been set for each analysis. The QC checks information for

field or laboratory results is useable for estimating precision, accuracy, and

completeness for the project. Data from this category is used independently

for rapid assessment and preliminary decisions.

Level 3

Laboratory analytical data

Analytical results include QC check samples for each batch of samples from

which precision, accuracy, and completeness can be determined. Detection

limits have been determined using 40 CFR Part 136 Appendix B, Revision 1.11.

 Raw data, chromatograms, spectrograms, and bench sheets are not included

as part of the analytical report, but are maintained by the Contract Laboratory

for easy retrieval and review. Data can be elevated from level 3 to level 4 by

the inclusion of this information in the report. In addition, level 4 QC data

must be reported using CLP forms or CLP format. Data falling under this

category is considered as complete and is used for regulatory decisions.

Level 4

Enforcement data

Analytical results mostly meet the USEPA required Contract Laboratory

Program (CLP) data analysis, contract required quantification limits (CRQL),

and validation procedures. QC data is reported on CLP forms or CLP format. 

Raw data, chromatograms, spectrograms, and bench sheets are included as

part of the analytical report. Additionally, all reporting information required in

the IDEM/BAA and in the Surface Water QAPP Table 11-1 are included. Data

is legally quantitative in value, and is used for regulatory decisions.

Figure 4 Data Quality Assessment Levels

GENERAL OBSERVATIONS

The goal of this project was to detect the presence of selected pesticides, establish their

respective concentrations, and calculate loading in surface waters of the Lower Wabash River

and the Kankakee River Basins. Using this information and estimated herbicide application for

the watersheds a percent runoff can be established. The percent runoff will vary due to many

factors such as agricultural practices, soil characteristics, chemical characteristics of the

pesticide, size of watershed, and the amount of time between the pesticide application and a

major rainfall event.

Due to the frequent detection of atrazine, acetochlor, and metolachlor, this report is limiting the

discussion to these three herbicides. These three herbicides were also the most used agricultural

pesticides in Indiana during 1999 (NASS 2000). The average concentrations, of the three

herbicides are, in respective order, 3.03 ug/L, 0.64 ug/L, and 1.28 ug/L. Atrazine was the most
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

21

commonly detected herbicide with 257 detections above the Minimum Reporting Limit (MRL). 

The average concentration of atrazine for the entire survey was 3.03 ug/L. A maximum

concentration of atrazine was 89 ug/L on April 5, 1999 in the Wabash river at Mt. Carmel

(WLW040-0001) (Appendix A-10 & Figure 24). Acetochlor had 84 detections above the MRL,

and a maximum concentration of 3.2 ug/L at Busseron Creek (WBU160-0002) on May 24, 1999

(Appendix A-4 & Figure 17). The average concentration of acetochlor for the survey was 0.64

ug/L. Metolachlor had 132 detections above the MRL and a peak concentration of 55ug/L at

Prairie Creek near Lebanon (WAU020-0004), on April 6, 1999 (Appendix A-13 & Figure 18). 

The average concentration of metolachlor for the survey was 1.28 ug/L. For more complete

information on the pesticides found in this project refer to Appendix A.

The average runoff rates for the three respective herbicides are as follows; atrazine, 1.14%;

acetochlor, 0.49%; and metolachlor, 1.20%. A study on the White River Basin by the USGS

indicated a percent runoff of 1% (Carter, Lydy, and Crawford 1995). Studies published by

McDuffee (2001) and Grady (1998) found simular runoff percentages. Individual watersheds do

have varying results and are discussed more fully in RUNOFF CALCULATIONS.

LOADING CALCULATIONS

To calculate loading, multiply the concentration of a specific herbicide by the flow rate at the

time of sample then multiply by the conversion factor 0.0053945. The conversion factor

converts the concentration (ug/L) and flow rate (ft3/s) to one value (lbs/day). The conversion

equation and an example are located in Figure 5. The example conversion is taken from the

Iroquois River site UMI020-0002 on April 29, 1999. The concentration for atrazine was 0.7 ug/L

and the flow was 67.2 ft3/s.

The true shape of the function describing the load per unit time is not known due to fluctuating

flow rates and pesticide concentrations. Instead, the function available consists of discrete points

spaced roughly one week apart, with one load observation about seven days prior to the

following observation. As a result, it is not possible to integrate the true function to find the total

mass of any particular chemical that ran off into the stream.

In cases like this, other methods are available to approximate the integral. One of these methods

Figure 5 Loading Conversion Equation and Example

28.3 L μg 1 ft33600 sec 24 hrs 1 g .035302 oz 1 lbs

1 ft3

x

L

x

sec

x

hr

x

Day

x

1.06ug

x

g

x

16 oz

= 5.3945x10-3

Example

0.7 ug/L*67.2 ft3/s*0.0053945= 0.254 lbs/day
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

22

is known as the Trapezoid Rule. An example graph of this rule can be seen in Figure 6. This

method calculates the area under the load function by creating n-1 trapezoids for n observations

where the area if each trapezoid is (l1 + l 2) /2 * w. The lengths of the legs of the trapezoids are

the magnitude of the successive load observations, and the widths of the trapezoids are the

intervals of time. By summing all of the trapezoids, the total pounds of chemical contributed by

runoff into the stream or river is approximated for each sampling station. These calculations

were used to construct Tables 8 through 13 where pound loadings for the river basins are

presented.

Figure 6 Example of the Trapezoid Rule

Example of the Trapazoid Rule

for the Month of June at WBU160-0002

Date

Chemical Loading

pounds/day

0

50

100

150

200

250

300

6/1 6/7 6/14 6/21 6/28

In this example, the sum of the four trapezoids

approximates the total pounds of atrazine 

for the month of June.

Trapazoid Trapezoid Trapazoid Trapazoid
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

23

Table 8 Pounds per Day of Atrazine for the Wabash River and White River Sample Sites

Sample Week

WLV010-

0002

WLV080-

0005

WLV150-

0001

WBU040-

0003

WBU150 -

0002

WBU200 -

0003

WWL100-

0005

WLW040-

0001

04/05/99 0 0 0 0 0 646.03 174.78 17236.0

04/26/99 43.372 80.92 100.07 122.563 0 264.11 245.45 581.15

05/03/99 12.267 21.43 25.08 45.098 52.219 69.43 89.01 230.61

05/10/99 0 0 19.16 35.927 28.051 28.07 0 129.63

05/17/99 77.638 27.82 50.35 95.483 480.7 506.22 78.04 475.79

05/24/99 301.553 114.64 111.99 217.129 140.04 177.99 440.19 1008.6

05/31/99 398.761 459.18 183.07 88.901 292.73 884.16 65.04 304.41

06/07/99 46.738 124.84 154.39 292.652 540.96 838.08 239.95 3223.8

06/14/99 144.163 88.47 182.28 84.095 215.56 200.71 112.98 719.52

06/21/99 22.576 37.5 53.51 71.919 0 118.82 45.00 214.32

06/28/99 18.708 22.51 35.54 27.512 34.741 73.62 86.31 420.02

07/05/99 21.114 19.18 17.62 17.608 22.7 28.38 33.77 97.91

07/12/99 9.732 11.22 7.06 15.051 14.765 9.86 15.18 41.16

07/19/99 14.954 9.44 14.41 10.649 15.32 14.37 8.97 27.11

07/26/99 7.552 7.72 8.38 10.724 13.896 15.49 12.5 28.77

Note: Pounds per day=(concentration)(flow)(.0053945)

Table 9 Pounds per Day of Metolachlor for The Wabash River and White River Sample Sites

Sample Week

WLV010-

0002

WLV080-

0005

WLV150-

0001

WBU040-

0003

WBU150 -

0002

WBU200 -

0003

WWL100-

0005

WLW040-

0001

04/05/99 0.00 0.00 0.00 0.00 0.00 76.35 0.00 0.00

04/26/99 21.69 40.46 57.18 61.28 0.00 123.25 47.2 244.70

05/03/99 8.18 10.71 16.72 33.82 39.16 41.66 40.46 102.50

05/10/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

05/17/99 19.41 0.00 20.14 38.19 121.97 110.05 0.00 108.80

05/24/99 69.59 34.89 39.20 49.63 31.83 34.23 55.02 146.00

05/31/99 156.66 143.49 45.77 26.67 78.41 136.64 0.00 67.65

06/07/99 12.30 29.57 40.03 94.40 164.64 226.15 52.49 725.30

06/14/99 45.23 28.31 35.28 0.00 23.30 34.61 26.58 88.36

06/21/99 0.00 7.14 13.38 22.88 0.00 39.61 11.84 59.12

06/28/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 86.47

07/05/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/12/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/19/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/26/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Note: Pounds per day=(concentration)(flow)(.0053945)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

24

Table 10 Pounds per Day of Acetochlor for the Wabash River and White River Sample Sites

Sample Week

WLV010-

0002

WLV080-

0005

WLV150-

0001

WBU040-

0003

WBU150 -

0002

WBU200 -

0003

WWL100-

0005

WLW040-

0001

04/05/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

04/26/99 10.84 13.49 14.30 30.641 0.00 52.82 66.08 122.30

05/03/99 4.09 5.36 0.00 0.00 0.00 13.89 16.18 25.62

05/10/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

05/17/99 27.73 0.00 0.00 31.83 86.10 88.04 18.36 81.56

05/24/99 55.67 24.92 22.40 31.02 31.83 41.07 66.03 172.50

05/31/99 85.45 50.22 39.23 0.00 31.36 112.53 0.00 45.10

06/07/99 9.84 19.71 28.59 47.20 82.32 119.73 29.99 403.00

06/14/99 19.79 0.00 0.00 0.00 23.30 0.00 0.00 63.12

06/21/99 0.00 8.93 10.70 13.08 0.00 22.00 0.00 29.56

06/28/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/05/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/12/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/19/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/26/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Note: Pounds per day=(concentration)(flow)(.0053945)

Table 11 Pounds per Day of Atrazine for the Kankakee River Basin Sample Sites

Sample Week UMK040- 0003 UMK060-0001 UMK080-0001 UMK110-0002 UMK130-0001 UMI020-0002 UMI040-0001

04/05/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

04/26/99 0.00 0.00 0.00 0.00 0.40 0.254 2.98

05/03/99 0.00 0.00 0.00 0.00 0.10 0.09 0.73

05/10/99 0.00 0.00 0.00 0.00 0.27 0.08 0.00

05/17/99 0.00 0.00 0.00 0.00 0.00 0.07 0.64

05/24/99 1.50 8.00 52.18 0.00 0.21 0.00 0.00

05/31/99 0.00 10.40 0.00 0.00 3.16 0.00 4.63

06/07/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

06/14/99 0.00 7.20 5.27 5.85 2.78 0.00 2.43

06/21/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

06/28/99 0.00 1.40 0.00 0.00 0.20 0.00 0.71

07/05/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/12/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/19/99 0.00 0.00 0.00 0.00 0.00 0.00 0.37

07/26/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Note: Pounds per day=(concentration)(flow)(.0053945)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

25

Table 12 Pounds per Day of Metolachlor for the Kankakee River Basin Sample Sites

Sample Week UMK040- 0003 UMK060-0001 UMK080-0001 UMK110-0002 UMK130-0001 UMI020-0002 UMI040-0001

04/05/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

04/26/99 0.00 0.00 0.00 2.64 0.40 0.25 1.19

05/03/99 0.00 0.00 0.00 0.00 0.00 0.06 0.00

05/10/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

05/17/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

05/24/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

05/31/99 0.00 0.00 0.00 0.00 0.72 0.00 1.99

06/07/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

06/14/99 0.00 0.00 0.00 0.00 0.42 0.00 0.00

06/21/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

06/28/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/05/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/12/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/19/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/26/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Note: Pounds per day=(concentration)(flow)(.0053945)

Table 13 Pounds per Day of Acetochlor for the Kankakee River Basin Sample Sites

Sample Week UMK040- 0003 UMK060-0001 UMK080-0001 UMK110-0002 UMK130-0001 UMI020-0002 UMI040-0001

04/05/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

04/26/99 0.00 0.00 0.00 0.00 0.00 0.00 1.19

05/03/99 0.00 0.00 0.00 0.00 0.20 0.06 0.47

05/10/99 0.00 0.00 0.00 0.00 0.34 0.00 0.00

05/17/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

05/24/99 0.00 2.40 20.20 0.00 0.00 0.00 0.00

05/31/99 0.00 3.00 0.00 0.00 0.79 0.00 1.10

06/07/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

06/14/99 0.00 1.50 0.00 0.00 0.51 0.00 0.00

06/21/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

06/28/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/05/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/12/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/19/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

07/26/99 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Note: Pounds per day=(concentration)(flow)(.0053945)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

26

ESTIMATED HERBICIDE USAGE ON CORN CROP

Agricultural information used to create Tables 14 and 15 was derived from landuse information

gathered while developing maps of the individual watersheds.

Table 14 shows the estimated usage of the three major herbicides on corn crops in the Lower

Wabash River AND Kankakee River Basins, based on the1999 agricultural chemical usage

(NASS 2000). The amount of pesticide applied was calculated using the approximate crop

acreage in use during the study, the percent of individual herbicide applied and the rate applied

per crop year. For example, the watershed upstream of the gaging station located on the Patoka

River near Princeton (WPA080-0002) has an estimated 138,252 corn acres planted in its

watershed. That acreage is multiplied by 91%, or the percentage of corn acres applied with

atrazine as reported by NASS (2000). The result is then multiplied by 1.25 pounds per acre

applied and that equals the estimated 157,262 pounds of atrazine in the watershed upstream of

Station WPA080-0002. The rest of the chemicals were applied at different rates and percentages.

 Atrazine was the most prolific chemical used by Indiana corn producers while metolachlor was

second and acetochlor was third. Metolachlor was also used on soybean crops so a combined

total applied between the two crops has been determined and reported in Table 15.
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

27

Table 14 Estimated Herbicide Usage on Corn Crops per Crop Year

Site

Drainage

Area in

Basin

sq./mi.1

Acres

Planted

to Corn2

Pounds of

Atrazine

applied3

Pounds of

Acetochlor

applied4

Pounds of

Metolachlor

applied5

Pounds of

Metolachlor

applied to bean

and corn crops6

UMK040-0003 537 145,067 165,014 73,752 96,136 104,622

UMK060-0001 435 118,137 134,381 60,061 78,289 82,896

UMK080-0001 1,352 313,993 357,167 159,634 208,083 220,329

UMK110-0002 1,779 504,889 574,311 256,686 334,590 354,281

UMK130-0001 123 33,344 37,929 16,952 22,097 23,397

UMI020-0002 36 33,798 38,445 17,183 22,398 23,716

UMI040-0001 449 133,307 151,637 67,773 88,343 93,542

WLV010-0002 7,267 2,135,135 2,444,866 937,907 1,421,775 1,452,533

WLV080-0005 8,218 2,410,887 2,418,869 1,224,858 1,604,516 1,637,425

WSU050-0006 509 153,442 174,540 78,010 101,686 107,670

WSU020-0004 33 9,120 10,374 4,637 6,044 6,400

WLV150-0001 11,118 3,081,380 3,477,182 1,555,490 1,970,913 2,095,612

WLV160-0002 139 43,343 49,303 22,036 28,723 30,413

WLV170-0003 222 61,842 70,345 31,440 40,983 43,395

WLV190-0003 448 113,604 129,225 57,756 74,751 81,397

WBU040-0003 12,263 3,709,675 4,183,626 1,872,198 2,372,344 2,410,005

WBU150-0002 13,161 3,824,193 4,313,165 1,930,075 2,445,770 2,484,182

WBU160-0002 228 48,400 55,055 24,607 31,847 34,678

WBU200-0003 13,706 3,872,875 5,183,756 1,956,037 2,486,720 2,526,014

WWL100-0005 11,125 2,488,159 2,830,281 1,264,980 1,637,209 1,782,766

WPA080-0002 822 138,252 157,262 70,287 90,970 93,801

WLW040-0001 28,635 7,361,784 8,301,210 3,715,323 4,695,096 4,755,597

1

 values reported from Tables 1 & 2

2

 estimated crop acreage for the watershed of each sampling site derived from NASS (2000) and Geographical Information System

3

 Atrazine application rates for each state included in the Wabash River Basin

91% of Indiana's corn acreage receives atrazine at a rate of 1.25 pounds per acre

 84% of Illinois' corn acreage receives atrazine at a rate of 1.25 pounds per acre

83% of Ohio's corn acreage receives atrazine at a rate of 1.33 pounds per acre

4

 Acetochlor application rate for each state included in the Wabash River Basin

31% of Indiana's corn acreage receives acetochlor at a rate of 1.64 pounds per acre

24% of Illinois' corn acreage receives acetochlor at a rate of 2.04 pounds per acre

25% of Ohio's corn acreage receives acetochlor at a rate of 1.99 pounds per acre

5

 Metolachlor application rate for each state included in the Wabash River Basin

47% of Indiana's corn acreage receives metolachlor at a rate of 1.40 pounds per acre

33% of Illinois' corn acreage receives metolachlor at a rate of 1.60 pounds per acre

45% of Ohio's corn acreage receives metolachlor at a rate of 1.67 pounds per acre

6

 total metolachlor applied by combining corn and bean application amounts from Tables 9 and 10

ESTIMATED HERBICIDE USAGE ON SOYBEAN CROPS

Table 15 contains different chemicals than Table 14 because soybeans require different

pesticides than corn. Glyphosate was the most desirable of the four preferred herbicides. 

Pendimethalin was the second most commonly used herbicide, followed by metolachlor and 2,4-
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

28

D.

Table 15 Estimated Herbicide Usage on Soybean Crops per Crop Year

Site

Drainage

Area in

Basin sq.

mi.1

Acres

Planted to

Soybeans2

Pounds of

Glyphosate

applied3

Pounds of

Pendimethalin

applied4

Pounds of

Metolachlor

applied5

Pounds of 2,4-D

applied6

UMK040-0003 537 145,067 80,483 9,400 8,486 4,526

UMK060-0001 435 118,137 65,542 7,655 6,911 3,686

UMK080-0001 1,352 313,993 174,203 20,347 18,369 9,797

UMK110-0002 1,779 504,889 280,112 32,717 29,536 15,753

UMK130-0001 123 33,344 18,499 2,161 1,951 1,040

UMI020-0002 36 33,798 18,751 2,190 1,977 1,055

UMI040-0001 449 133,307 73,959 8,638 7,798 4,159

WLV010-0002 7,267 2,135,134 1,687,610 138,357 83,270 66,616

WLV080-0005 8,218 2,410,886 1,905,564 156,225 94,025 75,220

WSU050-0006 509 153,442 85,130 9,943 8,976 4,787

WSU020-0004 33 9,120 5,060 591 534 285

WLV150-0001 11,118 3,081,380 2,435,523 199,673 120,174 96,139

WLV160-0002 139 43,343 24,047 2,809 2,536 1,352

WLV170-0003 222 61,842 34,310 4,007 3,618 1,929

WLV190-0003 448 113,604 63,027 7,362 6,646 3,544

WBU040-0003 12,263 3,709,674 2,932,126 240,387 144,677 115,742

WBU150-0002 13,161 3,824,193 3,022,642 247,808 149,144 119315

WBU160-0002 228 48,400 26,852 3,136 2,831 1,510

WBU200-0003 13,706 3,872,874 2,148,670 250,962 226,563 120,834

WWL100-0005 11,125 2,488,159 1,380,430 161,233 145,557 77,631

WPA080-0002 822 138,252 76,702 8,959 8,088 4,313

WLW040-0001 28,635 14,569,928 8,083,396 944,131 852,341 454,582

1

 values reported from Tables 1 & 2.

2

 estimated soybean acreage for the watershed of the sampling site derived from NASS (2000) and Geographical Information System

3

 Glyphosate application rates for each state included in the Wabash River Basin

76% of Indiana's soybean acreage received glyphosate at a rate of 0.73 pounds per acre

58% of Illinois' soybean acreage received glyphosate at a rate of 0.88 pounds per acre

64% of Ohio's soybean acreage received glyphosate at a rate of 0.79 pounds per acre

4

 Pendimethalin application rates for each state included in the Wabash River Basin

8% of Indiana's soybean acreage received pendimethalin at a rate of 0.81 pounds per acre

17% of Illinois' soybean acreage received pendimethalin at a rate of 1.07 pounds per acre

6% of Ohio's soybean acreage received pendimethalin at a rate of 0.72 pounds per acre

5

 Metolachlor application rates for each state included in the Wabash River Basin

3% of Indiana's soybean acreage received metolachlor at a rate of 0.26 pounds per acre

 No reported use of metolachlor on soybean crops in Illinois

11% of Ohio's soybean acreage received metolachlor at a rate of 1.74 pounds per acre

6 2,4-D application rates for each state included in the Wabash River Basin

8% of Indiana's soybean acreage received 2,4-D at a rate of 0.39 pounds per acre

10% of Illinois' soybean acreage received 2,4-D at a rate of 0.46 pounds per acre

9% of Ohio's soybean acreage received 2,4-D at a rate of 0.58 pounds per acre
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

29

RUNOFF CALCULATIONS

The importance of noting the percent runoff is to become aware of the watersheds that seem to be

at a higher risk of pesticides entering into surface water. There are many factors that can cause a

significant change in the amount of runoff within a watershed. Some of these are soil formation,

agricultural practices, rainfall events and their frequency, and watershed land uses. One that can

be noted in this study is rainfall that correlated with sampling time. As noted earlier, the study

design called for sampling on a weekly basis with only one sample per site. 

Table 16 Percentage of contributing tributaries to the Lower Wabash River Basin

Water Shed

Name

Station

Representing

Watershed

% of

contributing

 land area

% contribution

to total lbs. of

atrazine

% contribution

to total lbs. of

acetochlor

% contribution

to total lbs. of

metolachlor

Sugar Creek WSU050-0006 2% <0.5% 0.5% 2.5%

Big Raccoon Cr WLV190-0003 2% <0.5% 1.0% 1.5%

Busseron Creek WBU160-0002 1% 1.5% 2.0% 0.5%

White River WWL100-0005 39% 6.0% 26.5% 16.0%

Patoka River WPA080-0002 3% 1.5% 3.0% 6.5%

Summary Statistics for Lower Wabash River Basin

WLW040-0001 28,635 mi2

253,957

total lbs.

atrazine

7,389

total lbs.

acetochlor

12,940

total lbs.

metolachlor

Table 16 compares the percentage of land area that each of the tributaries contributes to the final

sample site along the Wabash River (WLW040-0001) to the percent of contributed pounds of the

three selected herbicides from those tributaries. It is clear that as the size of the watershed

increases so does its contributing load. However it is not a well defined correlation, variations

can be attributed to the soil formation, agricultural practices, rainfall events and their frequency,

and the surrounding land use. The poor correlation can also be a factor of sampling frequency. 

The smaller watersheds will have a more volatile reaction to a rainfall event, and the larger

watersheds will react slower and have a longer concentration peak. This type of reaction to

rainfall events prevents a very accurate representation of the smaller streams.

The regions of Indiana that contain the Lower Wabash River Basin experienced rainfall totals

that were a little below normal for the months of April through July. The Kankakee River Basin

received nearly 1.5 times the normal amount for April through July (Scheeringa 2000). This data

is presented in Table 17. The weekly rainfall totals within the Lower Wabash Basin were fairly

consistent throughout the entire sampling season. The major rainfall events within this basin

occured between May 30 through July 10. During this six-week period there were two distinct

peaks of rainfall. From April 4 through May 29, the weekly rainfall totals ranged between 1.5

inches to 0.25 inches with only small deviations between each week. The week ending on May

29 only received 0.25 inches of rain then the week starting May 30 received 1.98 inches of rain. 

This is the first major spike of the rainfall totals. The next three weeks all fall below the oneinch mark then on the week beginning on June 27 the weekly total increases to 2.75 inches. This
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

30

is the second major spike of rainfall during the sampling season in the Lower Wabash Basin. 

The remaining weeks displayed no distinct peaks.

The Kankakee River Basin displayed four peaks between April 4 through July 31. The first peak

occurred during the week beginning April 11 where the total jumped from 0.84 inches the week

before to 2.24 inches. The next five weeks show a gradual decline in the weekly totals with the

week ending on May 29 received 0.28 inches of rain then on the week beginning on May 30 the

total jumped up to 2.12 inches. The following week the total dropped to 1.06 inches then the

week starting on June 13 the weekly total increased to 5.71 inches. This three-week period easily

contains the most significant rainfall totals and the most distinct peak for the Kankakee River

Basin. After that peak the totals begin to slack off and only a few more minor peaks occur

(Scheeringa 2000).

Table 17 Rainfall Data for Each Watershed Basin During the Months of April-July

Basin

April

(Measured/Normal)

May

(Measured/Normal)

June

(Measured/Normal)

July

(Measured/Normal)

Kankakee 6.09"/3.78" 3.00"/3.72" 10.51"/4.00" 2.87"/3.88"

Lower

Wabash

4.28"/4.02" 2.89"/4.61" 4.77"/3.87" 3.69"/4.51"

TREND ANALYSIS

By evaluating the pesticides data in Figures 7-13 (Kankakee River Basin), and Figures 14 - 28

(Lower Wabash River Basin), recognizable trends begin to develop. The combination of weather

patterns, farming practices, watershed characteristics, and the chemical properties of the

herbicides determine their fate during late spring and early summer. It is clearly apparent that

pesticide loading in the surface waters is dependent on wet weather events coupled with seasonal

patterns associated with farming practices.

The bulk of the pesticides detected in this investigation are agricultural herbicides. These

herbicides are primarily applied from preplant through the early part of the postemergent phase of

a cropped field. The application of agricultural pesticides usually precedes or coincides with the

heaviest seasonal rainfall totals for Indiana. The herbicides found in the surface water using EPA

Test Method 525.2 are primarily water-soluble. This physical property allows the pesticides to

be more mobile increasing the amount of herbicides in precipitation run off. The less water

soluble a pesticide is the more affinity the chemical has to organic mater or soil particles, and the

less likely the pesticide will run off into the surface waters.

By observing herbicide concentrations plotted against time, a trend of two distinct peaks is

noticed on a majority of the graphs. The first peak can be attributed to the application of the

chemicals. Typically this peak is observed to begin in late April and attains its highest point near

mid-May. A peak during this time frame can be due to exceptionally high amounts of chemicals

available for runoff combined with small rainfall events, and atmospheric deposition resulting

from drift after chemical application. This peak is normally followed by a one to three week

plateau or decline in the concentration values, then a dramatic increase of the concentration. It
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

31

should be noted the bulk of the application has ended by this time so there is not as much

deposition from the atmosphere. The increase in concentration can be related to the increase of

rainfall events. The trend after this high point was downward in concentration values. This

occurs because the effort of applying pesticides is reduced after the plants have grown to a

certain size, and any additional applications occurring during this stage are applied to plants that

have all ready sprouted. Applying herbicides to land with growing plants decreases runoff of

chemicals.

Other factors affecting the presence of a chemical in the surface water is the use within the

watershed and the half-life of the chemical. Clearly a chemical with limited use will have limited

presence within the watershed. A chemical with a longer half-life will be more persistent in the

water. An example can be seen comparing atrazine and acetochlor. Atrazine has a half-life of

about 60 days and acetochlor has a half-life of only about 10 days. Atrazine was also used on a

higher percentage of corn than acetochlor. These factors will impact the presence of chemicals in

surface water.

The sampling sites in the Lower Wabash River Basin displayed this type of trend when the

concentration is graphed according to the date. The results were similar to previous studies

(Grady 1998, McDuffee 2001). The graphs of the Kankakee Basin displayed a similar trend. 

The concentration peaks occur during the same time frame, but the concentrations and the

duration of the event is significantly smaller.

As an example, atrazine is the most detected herbicide in this and past pesticide surveys (Grady

1998, McDuffee 2001). The 15 sites located in the Lower Wabash Basin had atrazine detected in

the samples an average of 13 times during the 15-week survey. The sampling sites within the

Kankakee River Basin had atrazine detected only an average of 4 times per site during the 15-

week survey. The Kankakee River had three sites located on its main-stem. Even when

combined, these three sites only detected atrazine four times for the entire sampling season. The

other four sample sites located along tributaries of the Kankakee River detected atrazine four

times the amount of the main-stem sites. Row crops are estimated at 89% of the land area in that

basin, and corn and soybeans are the dominant row crop.

A possible reason for this lack of herbicides detected in the samples may be due to the soil

formations and related topography. The Kankakee River Basin has the characteristics of the

Grand Kankakee Marsh, which was drained to less than 6 percent of its original size by the early

1900's. The drained area has a very low relief and has high concentrations of sand incorporated

in the soil. Both of these traits help to reduce surface runoff by increasing soil infiltration. The

further away from the main-stem of the Kankakee River the more other influences determined

the soil composition as well as the topography of the area. That could explain the difference in

the runoff within the Kankakee River Basin.
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

32

Iroquois River at Rosebud

UMI020-0002

Date

Chemical Concentrations

ug/L

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

4/7 4/29 5/6 5/12 5/19 5/26 6/3 6/9 6/16 6/23 6/30 7/8 7/14 7/21 7/28

ACETO

ATRA

METO

Figure 7 Concentration Over Time of Selected Pesticides at Site UMI020-0002 (Iroquois River at

Rosebud)

Iroquois River near Foresman

UMI040-0001

Date

Chemical Concentration

ug/L

0.0

0.4

0.8

1.2

1.6

2.0

2.4

4/7 4/29 5/6 5/12 5/19 5/26 6/3 6/9 6/16 6/23 6/30 7/8 7/14 7/21 7/28

ACETO

ATRA

METOL

Figure 8 Concentration Over Time of Selected Pesticides at Site UMI040-0001 (Iroquois River at

Foresman)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

33

Kankakee River at Dunns Bridge

UMK080-0001

Date

Chemical Concentration

ug/L

0

1

2

3

4

5

6

7

4/7 4/29 5/7 5/13 5/19 5/26 6/3 6/9 6/16 6/23 6/30 7/8 7/14 7/21 7/28

ACETO

ATRA

METOL

Figure 9 Concentration Over Time of Selected Pesticides at Site UMK080-0001 (Kankakee River at

Dunn’s Bridge)

Kankakee River at Shelby

UMK110-0002

Date

Chemical Concentration

ug/L

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

4/7 4/29 5/6 5/12 5/19 5/26 6/3 6/9 6/16 6/23 6/30 7/8 7/14 7/21 7/28

ACETO

ATRA

METOL

Figure 10 Concentration Over Time of Selected Pesticides at Site UMK110-0002 (Kankakee River at

Shelby)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

34

Kankakee River at Davis

UMK040-0003

Date

Chemical Concentration

ug/L

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

4/7 4/29 5/7 5/13 5/20 5/27 6/4 6/9 6/16 6/23 6/30 7/8 7/14 7/21 7/28

ACETO

ATRA

METOL

Figure 11 Concentration Over Time of Selected Pesticides at Site UMK040-0003 (Kankakee River at

Davis)

Singleton Ditch near Schneider

1999

Chemical Concentration

ug/L

4/7 4/29 5/6 5/12 5/19 5/26 6/3 6/9 6/16 6/23 630 7/8 7/14 7/21 7/28

0

1

2

3

4

5

 ACETO

 ATRA

 METOL

Figure 12 Concentration Over Time of Selected Pesticides at Site UMK130-0001 (Singleton Ditch

near Schneider)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

35

Yellow River at Knox

UMK060-0001

Date

Chemical Concentration

ug/L

0

1

2

3

4

4/7 4/29 5/7 5/13 5/20 5/27 6/4 6/9 6/16 6/23 6/30 7/8 7/14 7/21 7/28

ACETO

ATRA

METOL

Figure 13 Concentration Over Time of Selected Pesticides at Site UMK060-0001 (Yellow River at

Knox)

Big Raccoon Creek near Coxville

WLV160-0002

Date

Chemical Concentration

ug/L

0

1

2

3

4

5

6

4/6 4/27 5/4 5/11 5/18 5/25 6/2 6/8 6/15 6/22 6/29 7/7 7/13 7/20 7/27

ACETO

ATRA

METOL

Figure 14 Concentration Over Time of Selected Pesticides at Site WLV160-0002 (Big Raccoon

Creek near Coxville)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

36

Big Raccoon Creek near Ferndale

WLV170-0003

Date

Chemical Concentration

ug/L

0.0

0.5

1.0

1.5

2.0

2.5

4/6 4/27 5/4 5/11 5/18 5/25 6/2 6/8 6/15 6/22 6/29 7/7 7/13 7/20 7/27

ACETO

ATRA

METOL

Figure 15 Concentration Over Time of Selected Pesticides at Site WLV170-0003 (Big Raccoon

Creek near Ferndale)

Big Raccoon Creek near Fincastle

WLV160-0002

Date

Chemical Concentrations

ug/L

0

2

4

6

8

10

4/6 4/27 5/4 5/11 5/18 5/25 6/2 6/8 6/15 6/22 6/29 7/7 7/13 7/20 7/27

ACETO

ATRA

METOL

Figure 16 Concentration Over Time of Selected Pesticides at Site WLV160-0002 (Big Raccoon

Creek near Fincastle)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

37

Busseron Creek Near Carlisle

WBU160-0002

Date

Chemical Concentration

ug/L

0

10

20

30

40

50

60

70

80

4/6 4/27 5/3 5/10 5/17 5/24 6/1 6/7 6/14 6/21 6/28 7/6 7/12 7/19 7/26

ACETO

ATRA

METOL

Figure 17 Concentration Over Time of Selected Pesticides at Site WBU160-0002 (Busseron Creek

near Carlisle)

Praire Creek near Lebanon

WSU020-0004

Date

Chemical Concentration

ug/L

0

10

20

30

40

50

60

4/6 4/26 5/5 5/12 5/19 5/26 6/3 6/9 6/16 6/23 6/30 7/8 7/14 7/21 7/28

ACETO

ATRA

METOL

Figure 18 Concentration Over Time of Selected Pesticides at Site WSU020-0004 (Prairie Creek near

Lebanon)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

38

Patoka River near Princeton

WPA080-0002

Date

Chemical Concentration

ug/L

0

2

4

6

8

10

12

14

16

18

20

22

24

26

4/5 4/28 5/3 5/10 5/17 5/24 6/1 6/7 6/14 6/21 6/28 7/6 7/12 7/19 7/26

ACETO

ATRA

METOL

Figure 19 Concentration Over Time of Selected Pesticides at Site WPA080-0002 (Patoka River near

Princeton)

Sugar Creek at Crawfordsville

WSU050-0006

Date

Chemical Concentration

ug/L

0

1

2

3

4

5

6

7

8

4/6 4/26 5/5 5/12 5/19 5/26 6/3 6/9 6/16 6/23 6/30 7/8 7/14 7/21 7/28

ACETO

ATRA

METOL

Figure 20 Concentration Over Time of Selected Pesticides at Site WSU050-0006 (Sugar Creek at

Crawfordsville)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

39

Wabash River at Lafayette

WLV010-0002

Date

Chemical Concentration

ug/L

0

1

2

3

4

5

6

7

4/6 4/26 5/6 5/12 5/19 5/26 6/3 6/9 6/16 6/23 6/30 7/8 7/14 7/21 7/28

ACETO

ATRA

METOL

Figure 21 Concentration Over Time of Selected Pesticides at Site WLV010-0002 (Wabash River at

Lafayette)

Wabash River at Riverton

WBU150-0002

Date

Chemical Concentration

ug/L

0

1

2

3

4

5

6

7

8

4/6 4/27 5/3 5/10 5/17 5/24 6/1 6/7 6/14 6/21 6/28 7/6 7/12 7/19 7/26

ACETO

ATRA

METOL

Figure 22 Concentration Over Time of Selected Pesticides at Site WBU150-0002 (Wabash River at

Riverton)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

40

White River at Petersburg

WWL100-0005

Date

Chemical Concentration

ug/L

0

1

2

3

4

5

6

7

8

9

10

4/5 4/28 5/3 5/17 5/24 6/1 6/7 6/14 6/21 6/28 7/6 7/12 7/19 7/26

ACETO

ATRA

METOL

Figure 23 Concentration Over Time of Selected Pesticides at Site WWL100-0005 (Wabash River at

Petersburg)

Wabash River at Mt. Carmel, IL

WLW040-0001

Date

Chemical Concentration

ug/L

0

10

20

30

40

50

60

70

80

90

4/5 4/28 5/4 5/11 5/18 5/25 6/2 6/8 6/15 6/22 6/29 7/7 7/13 7/20 7/27

ACETO

ATRA

METOL

Figure 24 Concentration Over Time of Selected Pesticides at Site WLW040-0001 (Wabash River at

Mt. Carmel, IL)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

41

Wabash River at Vincennes

WBU200-0003

Date

Chemical Concentration

ug/L

0

2

4

6

8

10

12

4/5 4/27 5/4 5/11 5/18 5/25 6/2 6/8 6/14 6/21 6/28 7/6 7/12 7/19 7/26

ACETO

ATRA

METOL

Figure 25 Concentration Over Time of Selected Pesticides at Site WBU200-0003 (Wabash River at

Vincennes)

Wabash River at Terre Haute

WBU040-0003

Date

Chemical Concentration

ug/L

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4/6 4/27 5/3 5/10 5/17 5/24 6/1 6/7 6/14 6/21 6/28 7/6 7/12 7/19 7/26

ACETO

ATRA

METOL

Figure 26 Concentration Over Time of Selected Pesticides at Site WBU040-0003 (Wabash River at

Terre Haute)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

42

Wabash River at Montezuma

WLV150-0003

Date

Chemical Concentration

ug/L

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4/6 4/26 5/4 5/11 5/18 5/25 6/2 6/8 6/15 6/22 6/29 7/7 7/13 7/20 7/27

ACETO

ATRA

METOL

Figure 27 Concentration Over Time of Selected Pesticides at Site WLV150-0003 (Wabash River at

Montezuma)

Wabash River at Covington

WLV080-0005

Date

Chemical Concentrations

ug/L

0

1

2

3

4

5

6

7

4/6 4/26 5/5 5/12 5/19 5/26 6/3 6/8 6/15 6/22 6/29 7/7 7/13 7/20 7/27

ACETO

ATRA

METOL

Figure 28 Concentration Over Time of Selected Pesticides at Site WLV080-0005 (Wabash River at

Covington)
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

43

DRINKING WATER CONCERNS

There are no Public Water Supply Facilities that have their drinking water intake points in the

Lower Wabash River Basin or the Kankakee River Basin. However there are 55 surface water

intakes located in Indiana and 42 of those sites are located within the Wabash River Drainage. A

report produced by Laws et al. (2000) cited a number of reports on the affect of atrazine on

mammals. These studies do indicate a concern that atrazine is an endocrine disrupter and has a

potential to produce tumors in a long term setting. IDEM=s Office of Drinking Water has

recently implemented ASource Water Protection Program@ for human health and safety. It is

proposed that to comply with the IDEM=s Source Water Protection Program, concerned Public

Water Supplies in the Wabash River Basin take appropriate measures to reduce human exposure

to these pesticides in drinking water.

RECOMMENDATIONS AND CONCLUSIONS

1. Future pesticides monitoring is vital in order to understand the affects of pesticides in

surface water. Trends in pesticide use within these basins need to be monitored in order

to identify emerging water quality issues. Attention to new pesticides coming into the

market is also important.

2. This project has the potential to highlight areas that pose possible non-point pollution

problems. This information can be used for Non-point Source Best Management

Practices. Priority should be given to federally funded Clean Water Act Section 319

grant projects within these basins to help alleviate the runoff potential.

3. Studies of this nature have been scheduled for the entire state of Indiana so that pesticide

occurrence, concentrations, and loading can be understood for major tributaries

throughout the state. Future monitoring is essential to track the long-term trends

associated with pesticides in the surface waters of Indiana.

4. Drinking Water Quality Standards were used for comparison purposes only because there

are no Surface Water Quality Standards for the herbicides covered in this report. 
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

44

LITERATURE CITED

Ahrens WH. 1994. Herbicide Handbook Committee. Herbicide Handbook, Seventh Edition.

Weed Science Society of America.

Bowren T, GhiasUddin S. 1999. Quality Assurance Project Plan(QAPP) for Indiana Surface

Water Quality Monitoring Programs. Revision 2, July 1999. Indiana Department of

Environmental Management, Office of Water Management, Assessment Branch. Indianapolis,

Indiana. Prepared for US Environmental Protection Agency(USEPA) Region V, Water Division.

EPA Grant Nr M005180-99-0, C995008-99-0. IDEM 032/01/1442/1999. 103 p. 7 ap.

Carter DS, Lydy M.J., Crawford CG. 1995. Water-Quality Assessment of the White River Basin,

Indiana: Analysis of Available Information on Pesticides, 1972-92. U.S. Geological Survey,

Water-Resource Investigations Report 94-4034.

Crawford C. 1997. Trends in Acetochlor Concentrations in Surface Waters of the White River

Basin, Indiana, 1994-96, U.S. Geological Survey, Fact Sheet 058-97.

Federal Register. September 26, 2001. 66,187, 2001.

Fowler K, Wilson J. 1996. Low-Flow Characteristics of Indiana Streams, U.S. Geological

Survey, Water-Resources Investigations Report 96-4128.

Grady S. 1998. A Study of Pesticides Concentrations in the Whitewater River and White River

Basins. Indiana Department of Environmental Management, Office of Water Management,

Assessment Branch, Surveys Section, Indianapolis, Indiana. IDEM 032/02/011/1998.

Greeman TK. 1994. Upper Wabash River Basin, Fenelon JM. (Compiler). U.S. Geological

Survey, Boday KE (Compiler). Hydrogeologic atlas of aquifers in Indiana. Water Resources

Investigations. WRI 92-4142. p 63-84.

[IDEM] Indiana Department of Environmental Management. 1996. Surface Water Quality

Monitoring Strategy 1996 - 2000. Revised May 1998. Indiana Department of Environmental

Management, Office of Water Management, Assessment Branch. 20 p, 3 ap. IDEM

32/01/013/1996.

[IDNR] Indiana Department of Natural Resources. 1980. The Indiana Water Resource,

Availability, Uses, and Needs. Indiana Department of Natural Resources, Division of Water.

[IDNR] Indiana Department of Natural Resources. 1990. Water Resource Availability in the

Kankakee River Basin, Indiana. Indiana Department of Natural Resources, Division of Water.

Laws S, Ferrell J, Stoker T, Schmid J, Cooper R. 2000. The Effects of Atrazine on Female
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

45

Wistar Rats: An Evaluation of the Protocol for Assessing Pubertal Development and Thyroid

Function. Toxicological Sciences 58, 366-376.

McDuffee R. 2001. An Assessment of Pesticide Concentrations in the Upper Wabash River

Basin. Indiana Department of Environmental Management, Office of Water Quality, Assessment

Branch, Surveys Section, Indianapolis, Indiana. IDEM 032/02/024/2001

[NASS] National Agricultural Statistics Service. 2000. Agricultural Chemical Usage 1999 Field

Crops Summary

Oregon State University. 1996. Extension Toxicology Network Page. 

http://ace.orst.edu/info/extoxnet/pips/terbufos.htm

[ORSANCO] Ohio River Valley Water Sanitation Commission. 1997. Herbicides in the Lower

Ohio River Basin

Scheeringa K. 2000. Indiana Climate Page. http://shadow.agry.purdue.edu/toolbox/cdmap.gif. 

April 2000.

Thomson WT. 1993. Agricultural Chemicals. Book II: Herbicides. Thomson Publications,

Fresno, CA.

[USGS] U.S. Geological Survey. 1994. USGS land use and land cover (LULC) date geospatial

data presentation form: Map: Sioux Falls, South Dakota. U.S. Geological Survey
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

46
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-1

APPENDIX A

Laboratory Results

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

Iroquois River at Rosebud

UMI020-0002 5/6/1999 DA13067 Acetochlor 0.3 1 0.1

UMI020-0002 4/29/1999 DA13041 Atrazine (Aatrex) 0.7 4 0.1

UMI020-0002 5/6/1999 DA13067 Atrazine (Aatrex) 0.5 4 0.1

UMI020-0002 5/12/1999 DA13093 Atrazine (Aatrex) 0.5 1 0.1

UMI020-0002 5/19/1999 DA13119 Atrazine (Aatrex) 0.5 1 0.1

UMI020-0002 5/19/1999 DA13119 Cyanazine (Bladex) 0.6 10 1

UMI020-0002 4/7/1999 DA13017 Di-n-butylphthalate 21 1 0.1

UMI020-0002 4/29/1999 DA13041 Metolachlor 0.7 4 0.1

UMI020-0002 5/6/1999 DA13067 Metolachlor 0.3 1 0.1

Iiroquois River near Foresman

UMI040-0001 4/29/1999 DA13040 Acetochlor 0.2 1 0.1

UMI040-0001 5/6/1999 DA13066 Acetochlor 0.2 4 0.1

UMI040-0001 6/3/1999 DA13170 Acetochlor 0.5 4 0.1

UMI040-0001 4/29/1999 DA13040 Atrazine (Aatrex) 0.5 4 0.1

UMI040-0001 5/6/1999 DA13066 Atrazine (Aatrex) 0.3 4 0.1

UMI040-0001 5/19/1999 DA13118 Atrazine (Aatrex) 0.4 4 0.1

UMI040-0001 6/3/1999 DA13170 Atrazine (Aatrex) 2.1 4 0.1

UMI040-0001 6/16/1999 DA13222 Atrazine (Aatrex) 1.3 4 0.1

UMI040-0001 6/30/1999 DA13274 Atrazine (Aatrex) 0.5 1 0.1

UMI040-0001 7/21/1999 DA13352 Atrazine (Aatrex) 0.4 1 0.1

UMI040-0001 5/6/1999 DA13066 Cyanazine (Bladex) 0.1 1 0.1

UMI040-0001 4/7/1999 DA13016 Di-n-butylphthalate 25 1 0.1

UMI040-0001 4/29/1999 DA13040 Metolachlor 0.2 10 1

UMI040-0001 6/3/1999 DA13170 Metolachlor 0.9 1 0.1

Kankakee River at Davis

UMK040-0003 5/27/1999 DA13149 Atrazine (Aatrex) 0.6 10 1

UMK040-0003 4/7/1999 DA13021 Di-n-butylphthalate 28 4 0.1

Yellow River at Knox

UMK060-0001 5/27/1999 DA13150 Acetochlor 1 4 0.1

UMK060-0001 6/4/1999 DA13176 Acetochlor 1.1 4 1

UMK060-0001 6/16/1999 DA13228 Acetochlor 0.7 4 1

UMK060-0001 5/27/1999 DA13150 Alachlor 0.4 4 0.1

UMK060-0001 6/16/1999 DA13228 Alachlor 0.7 4 0.1

UMK060-0001 5/27/1999 DA13150 Atrazine (Aatrex) 3.4 4 0.1

UMK060-0001 6/4/1999 DA13176 Atrazine (Aatrex) 3.8 4 0.1

UMK060-0001 6/16/1999 DA13228 Atrazine (Aatrex) 3.3 4 0.1

UMK060-0001 6/30/1999 DA13280 Atrazine (Aatrex) 0.8 4 0.1

UMK060-0001 6/4/1999 DA13176 Cyanazine (Bladex) 0.5 4 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-2

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

UMK060-0001 6/30/1999 DA13280 Di(2-ethylhexyl)phthalate 4 4 0.1

UMK060-0001 7/8/1999 DA13306 Di(2-ethylhexyl)phthalate 4.5 4 0.1

Kankakee River at Dunns Bridge

UMK080-0001 5/26/1999 DA13148 Acetochlor 2.4 4 0.1

UMK080-0001 5/26/1999 DA13148 Alachlor 0.5 4 0.1

UMK080-0001 5/26/1999 DA13148 Atrazine (Aatrex) 6.2 4 0.1

UMK080-0001 6/16/1999 DA13226 Atrazine (Aatrex) 0.8 4 0.1

UMK080-0001 4/7/1999 DA13020 Di-n-butylphthalate 24 10 1

Kankakee River at Shelby

UMK110-0002 6/16/1999 DA13225 Atrazine (Aatrex) 0.7 4 0.1

UMK110-0002 4/7/1999 DA13019 Di-n-butylphthalate 28 1 0.1

UMK110-0002 4/29/1999 DA13043 Metolachlor 0.1 10 1

Singleton Ditch at Schneider

UMK130-0001 5/6/1999 DA13068 Acetochlor 0.2 1 0.1

UMK130-0001 5/12/1999 DA13094 Acetochlor 0.5 4 0.1

UMK130-0001 6/3/1999 DA13172 Acetochlor 1.1 1 0.1

UMK130-0001 6/16/1999 DA13224 Acetochlor 0.6 4 0.1

UMK130-0001 4/29/1999 DA13042 Atrazine (Aatrex) 0.1 10 1

UMK130-0001 5/6/1999 DA13068 Atrazine (Aatrex) 0.1 4 0.1

UMK130-0001 5/12/1999 DA13094 Atrazine (Aatrex) 0.4 4 0.1

UMK130-0001 5/26/1999 DA13146 Atrazine (Aatrex) 0.4 4 0.1

UMK130-0001 6/3/1999 DA13172 Atrazine (Aatrex) 4.4 4 0.1

UMK130-0001 6/16/1999 DA13224 Atrazine (Aatrex) 3.3 4 0.1

UMK130-0001 6/30/1999 DA13276 Atrazine (Aatrex) 0.6 4 0.1

UMK130-0001 4/29/1999 DA13042 Cyanazine (Bladex) 0.1 4 0.1

UMK130-0001 6/16/1999 DA13224 Cyanazine (Bladex) 0.6 1 0.1

UMK130-0001 4/7/1999 DA13018 Di-n-butylphthalate 37 1 0.1

UMK130-0001 4/29/1999 DA13042 Metolachlor 0.1 1 0.1

UMK130-0001 6/3/1999 DA13172 Metolachlor 1 4 0.1

UMK130-0001 6/16/1999 DA13224 Metolachlor 0.5 4 0.1

Wabash River at Terre Haute

WBU040-0003 4/27/1999 DA13031 Acetochlor 0.2 1 0.1

WBU040-0003 5/17/1999 DA13109 Acetochlor 0.5 4 0.1

WBU040-0003 5/24/1999 DA13135 Acetochlor 0.5 4 0.1

WBU040-0003 6/7/1999 DA13187 Acetochlor 0.5 4 0.1

WBU040-0003 6/21/1999 DA13239 Acetochlor 0.4 4 0.1

WBU040-0003 4/27/1999 DA13031 Atrazine (Aatrex) 0.8 4 0.1

WBU040-0003 5/3/1999 DA13057 Atrazine (Aatrex) 0.4 4 0.1

WBU040-0003 5/10/1999 DA13083 Atrazine (Aatrex) 0.6 1 0.1

WBU040-0003 5/17/1999 DA13109 Atrazine (Aatrex) 1.5 1 0.1

WBU040-0003 5/24/1999 DA13135 Atrazine (Aatrex) 3.5 1 0.1

WBU040-0003 6/1/1999 DA13161 Atrazine (Aatrex) 2 1 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-3

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WBU040-0003 6/7/1999 DA13187 Atrazine (Aatrex) 3.1 4 0.1

WBU040-0003 6/14/1999 DA13213 Atrazine (Aatrex) 1.7 4 0.1

WBU040-0003 6/21/1999 DA13239 Atrazine (Aatrex) 2.2 1 0.1

WBU040-0003 6/28/1999 DA13265 Atrazine (Aatrex) 1 4 0.1

WBU040-0003 7/6/1999 DA13291 Atrazine (Aatrex) 0.8 4 0.1

WBU040-0003 7/12/1999 DA13317 Atrazine (Aatrex) 1 4 0.1

WBU040-0003 7/19/1999 DA13343 Atrazine (Aatrex) 0.7 4 0.1

WBU040-0003 7/26/1999 DA13369 Atrazine (Aatrex) 0.7 4 0.1

WBU040-0003 4/27/1999 DA13031 Bromacil 0.3 4 0.1

WBU040-0003 4/27/1999 DA13031 Metolachlor 0.4 4 0.1

WBU040-0003 5/3/1999 DA13057 Metolachlor 0.3 4 0.1

WBU040-0003 5/17/1999 DA13109 Metolachlor 0.6 4 0.1

WBU040-0003 5/24/1999 DA13135 Metolachlor 0.8 4 0.1

WBU040-0003 6/1/1999 DA13161 Metolachlor 0.6 4 0.1

WBU040-0003 6/7/1999 DA13187 Metolachlor 1 4 0.1

WBU040-0003 6/21/1999 DA13239 Metolachlor 0.7 4 0.1

Wabash River at Riverton

WBU150-0002 5/17/1999 DA13108 Acetochlor 1.2 4 0.1

WBU150-0002 5/24/1999 DA13134 Acetochlor 0.5 4 0.1

WBU150-0002 6/1/1999 DA13160 Acetochlor 0.6 4 0.1

WBU150-0002 6/7/1999 DA13186 Acetochlor 0.7 4 0.1

WBU150-0002 6/14/1999 DA13212 Acetochlor 0.4 4 0.1

WBU150-0002 5/3/1999 DA13056 Atrazine (Aatrex) 0.4 4 0.1

WBU150-0002 5/10/1999 DA13082 Atrazine (Aatrex) 0.4 4 0.1

WBU150-0002 5/17/1999 DA13108 Atrazine (Aatrex) 6.7 4 0.1

WBU150-0002 5/24/1999 DA13134 Atrazine (Aatrex) 2.2 1 0.1

WBU150-0002 6/1/1999 DA13160 Atrazine (Aatrex) 5.6 4 0.1

WBU150-0002 6/7/1999 DA13186 Atrazine (Aatrex) 4.6 4 0.1

WBU150-0002 6/14/1999 DA13212 Atrazine (Aatrex) 3.7 1 0.1

WBU150-0002 6/28/1999 DA13264 Atrazine (Aatrex) 1 4 0.1

WBU150-0002 7/6/1999 DA13290 Atrazine (Aatrex) 0.8 4 0.1

WBU150-0002 7/12/1999 DA13316 Atrazine (Aatrex) 0.7 4 0.1

WBU150-0002 7/19/1999 DA13342 Atrazine (Aatrex) 0.8 4 0.1

WBU150-0002 7/26/1999 DA13368 Atrazine (Aatrex) 0.7 4 0.1

WBU150-0002 5/17/1999 DA13108 Cyanazine (Bladex) 0.4 4 0.1

WBU150-0002 5/3/1999 DA13056 Metolachlor 0.3 4 0.1

WBU150-0002 5/17/1999 DA13108 Metolachlor 1.7 4 0.1

WBU150-0002 5/24/1999 DA13134 Metolachlor 0.5 4 0.1

WBU150-0002 6/1/1999 DA13160 Metolachlor 1.5 4 0.1

WBU150-0002 6/7/1999 DA13186 Metolachlor 1.4 4 0.1

WBU150-0002 6/14/1999 DA13212 Metolachlor 0.4 4 0.1

WBU150-0002 7/19/1999 DA13342 Prometryn 0.4 4 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-4

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WBU150-0002 7/19/1999 DA13342 Terbutryn 0.5 4 0.1

Busseron Creek near Carlisle

WBU160-0002 4/27/1999 DA13029 Acetochlor 0.1 11 1

WBU160-0002 5/17/1999 DA13107 Acetochlor 1.2 1 0.1

WBU160-0002 5/24/1999 DA13133 Acetochlor 3.2 4 0.1

WBU160-0002 6/1/1999 DA13159 Acetochlor 0.6 4 0.1

WBU160-0002 6/7/1999 DA13185 Acetochlor 1.5 4 0.1

WBU160-0002 6/14/1999 DA13211 Acetochlor 1.5 4 0.1

WBU160-0002 6/21/1999 DA13237 Acetochlor 0.5 4 0.1

WBU160-0002 6/28/1999 DA13263 Acetochlor 0.6 4 0.1

WBU160-0002 6/14/1999 DA13211 Alachlor 0.4 1 0.1

WBU160-0002 4/6/1999 DA13005 Atrazine (Aatrex) 73 1 0.1

WBU160-0002 4/27/1999 DA13029 Atrazine (Aatrex) 1.5 1 0.1

WBU160-0002 5/3/1999 DA13055 Atrazine (Aatrex) 0.4 1 0.1

WBU160-0002 5/10/1999 DA13081 Atrazine (Aatrex) 0.5 1 0.1

WBU160-0002 5/17/1999 DA13107 Atrazine (Aatrex) 3 4 0.1

WBU160-0002 5/24/1999 DA13133 Atrazine (Aatrex) 10 11 0.1

WBU160-0002 6/1/1999 DA13159 Atrazine (Aatrex) 2.5 4 0.1

WBU160-0002 6/7/1999 DA13185 Atrazine (Aatrex) 7.7 11 0.1

WBU160-0002 6/14/1999 DA13211 Atrazine (Aatrex) 9.6 1 0.1

WBU160-0002 6/21/1999 DA13237 Atrazine (Aatrex) 3.1 4 0.1

WBU160-0002 6/28/1999 DA13263 Atrazine (Aatrex) 4.1 4 0.1

WBU160-0002 7/6/1999 DA13289 Atrazine (Aatrex) 2.5 4 0.1

WBU160-0002 7/12/1999 DA13315 Atrazine (Aatrex) 1.7 4 0.1

WBU160-0002 7/19/1999 DA13341 Atrazine (Aatrex) 2 4 0.1

WBU160-0002 7/26/1999 DA13367 Atrazine (Aatrex) 1 4 0.1

WBU160-0002 4/27/1999 DA13029 Bromacil 0.2 4 0.1

WBU160-0002 7/19/1999 DA13341 Chloroneb 0.4 4 0.1

WBU160-0002 4/6/1999 DA13005 Dimethylphthalate 13 4 0.1

WBU160-0002 4/6/1999 DA13005 Metolachlor 1.4 4 0.1

WBU160-0002 4/27/1999 DA13029 Metolachlor 0.1 4 0.1

WBU160-0002 5/24/1999 DA13133 Metolachlor 0.6 4 0.1

WBU160-0002 6/7/1999 DA13185 Metolachlor 0.6 4 0.1

WBU160-0002 4/27/1999 DA13029 Simazine 0.4 4 0.1

WBU160-0002 5/3/1999 DA13055 Simazine 0.23 4 0.1

WBU160-0002 5/24/1999 DA13133 Simazine 0.66 4 0.1

Wabash River at Vincennes

WBU200-0003 4/27/1999 DA13028 Acetochlor 0.3 4 0.1

WBU200-0003 5/4/1999 DA13054 Acetochlor 0.1 4 0.1

WBU200-0003 5/18/1999 DA13106 Acetochlor 1.2 4 0.1

WBU200-0003 5/25/1999 DA13132 Acetochlor 0.6 4 0.1

WBU200-0003 6/2/1999 DA13158 Acetochlor 1.4 4 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-5

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WBU200-0003 6/8/1999 DA13184 Acetochlor 0.9 4 0.1

WBU200-0003 6/21/1999 DA13236 Acetochlor 0.5 1 0.1

WBU200-0003 4/5/1999 DA13004 Atrazine (Aatrex) 11 4 1

WBU200-0003 4/27/1999 DA13028 Atrazine (Aatrex) 1.5 4 0.1

WBU200-0003 5/4/1999 DA13054 Atrazine (Aatrex) 0.5 4 0.1

WBU200-0003 5/11/1999 DA13080 Atrazine (Aatrex) 0.4 4 0.1

WBU200-0003 5/18/1999 DA13106 Atrazine (Aatrex) 6.9 4 0.1

WBU200-0003 5/25/1999 DA13132 Atrazine (Aatrex) 2.6 4 0.1

WBU200-0003 6/2/1999 DA13158 Atrazine (Aatrex) 11 4 0.1

WBU200-0003 6/8/1999 DA13184 Atrazine (Aatrex) 6.3 4 0.1

WBU200-0003 6/14/1999 DA13210 Atrazine (Aatrex) 2.9 4 0.1

WBU200-0003 6/21/1999 DA13236 Atrazine (Aatrex) 2.7 1 0.1

WBU200-0003 6/28/1999 DA13262 Atrazine (Aatrex) 1.7 4 0.1

WBU200-0003 7/6/1999 DA13288 Atrazine (Aatrex) 0.9 1 0.1

WBU200-0003 7/12/1999 DA13314 Atrazine (Aatrex) 0.7 4 0.1

WBU200-0003 7/19/1999 DA13340 Atrazine (Aatrex) 0.7 1 0.1

WBU200-0003 7/26/1999 DA13366 Atrazine (Aatrex) 0.7 1 0.1

WBU200-0003 4/27/1999 DA13028 Cyanazine (Bladex) 0.2 1 0.1

WBU200-0003 6/2/1999 DA13158 Di(2-ethylhexyl)phthalate 2.6 1 0.1

WBU200-0003 4/5/1999 DA13004 Metolachlor 1.3 1 0.1

WBU200-0003 4/27/1999 DA13028 Metolachlor 0.7 10 0.1

WBU200-0003 5/4/1999 DA13054 Metolachlor 0.3 10 0.1

WBU200-0003 5/18/1999 DA13106 Metolachlor 1.5 10 0.1

WBU200-0003 5/25/1999 DA13132 Metolachlor 0.5 4 0.1

WBU200-0003 6/2/1999 DA13158 Metolachlor 1.7 4 0.1

WBU200-0003 6/8/1999 DA13184 Metolachlor 1.7 1 0.1

WBU200-0003 6/14/1999 DA13210 Metolachlor 0.5 4 0.1

WBU200-0003 6/21/1999 DA13236 Metolachlor 0.9 4 0.1

WBU200-0003 4/5/1999 DA13004 Simazine 3.5 4 0.1

WBU200-0003 4/27/1999 DA13028 Simazine 0.1 4 0.1

WBU200-0003 5/4/1999 DA13054 Simazine 0.08 4 0.1

WBU200-0003 5/18/1999 DA13106 Simazine 0.32 4 0.1

WBU200-0003 6/2/1999 DA13158 Simazine 0.44 4 0.1

Wabash River at Lafayette

WLV010-0002 4/26/1999 DA13039 Acetochlor 0.1 11 1

WLV010-0002 5/6/1999 DA13065 Acetochlor 0.1 4 0.1

WLV010-0002 5/19/1999 DA13117 Acetochlor 1 4 0.1

WLV010-0002 5/26/1999 DA13143 Acetochlor 1.2 4 0.1

WLV010-0002 6/3/1999 DA13169 Acetochlor 1.2 4 0.1

WLV010-0002 6/9/1999 DA13195 Acetochlor 0.4 4 0.1

WLV010-0002 6/16/1999 DA13221 Acetochlor 0.7 4 0.1

WLV010-0002 4/26/1999 DA13039 Atrazine (Aatrex) 0.4 4 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-6

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WLV010-0002 5/6/1999 DA13065 Atrazine (Aatrex) 0.3 1 0.1

WLV010-0002 5/19/1999 DA13117 Atrazine (Aatrex) 2.8 4 0.1

WLV010-0002 5/26/1999 DA13143 Atrazine (Aatrex) 6.5 1 0.1

WLV010-0002 6/3/1999 DA13169 Atrazine (Aatrex) 5.6 1 0.1

WLV010-0002 6/9/1999 DA13195 Atrazine (Aatrex) 1.9 1 0.1

WLV010-0002 6/16/1999 DA13221 Atrazine (Aatrex) 5.1 1 0.1

WLV010-0002 6/23/1999 DA13247 Atrazine (Aatrex) 1.5 1 0.1

WLV010-0002 6/30/1999 DA13273 Atrazine (Aatrex) 1.2 1 0.1

WLV010-0002 7/8/1999 DA13299 Atrazine (Aatrex) 1.9 4 0.1

WLV010-0002 7/14/1999 DA13325 Atrazine (Aatrex) 1.1 4 0.1

WLV010-0002 7/21/1999 DA13351 Atrazine (Aatrex) 1.2 4 0.1

WLV010-0002 7/28/1999 DA13377 Atrazine (Aatrex) 1 1 0.1

WLV010-0002 4/26/1999 DA13039 Bromacil 0.1 4 0.1

WLV010-0002 5/26/1999 DA13143 Cyanazine (Bladex) 0.4 4 0.1

WLV010-0002 4/6/1999 DA13015 Di-n-butylphthalate 35 4 0.1

WLV010-0002 4/26/1999 DA13039 Metolachlor 0.2 4 0.1

WLV010-0002 5/6/1999 DA13065 Metolachlor 0.2 4 0.1

WLV010-0002 5/19/1999 DA13117 Metolachlor 0.7 4 0.1

WLV010-0002 5/26/1999 DA13143 Metolachlor 1.5 4 0.1

WLV010-0002 6/3/1999 DA13169 Metolachlor 2.2 4 0.1

WLV010-0002 6/9/1999 DA13195 Metolachlor 0.5 4 0.1

WLV010-0002 6/16/1999 DA13221 Metolachlor 1.6 4 0.1

WLV010-0002 4/26/1999 DA13039 Simazine 0.08 4 0.1

WLV010-0002 5/26/1999 DA13143 Simazine 0.3 4 0.1

WLV010-0002 6/16/1999 DA13221 Simazine 0.36 4 0.1

Wabash River at Covington

WLV080-0005 4/26/1999 DA13037 Acetochlor 0.1 4 0.1

WLV080-0005 5/5/1999 DA13063 Acetochlor 0.1 4 0.1

WLV080-0005 5/26/1999 DA13141 Acetochlor 0.5 1 0.1

WLV080-0005 6/3/1999 DA13167 Acetochlor 0.7 1 0.1

WLV080-0005 6/8/1999 DA13193 Acetochlor 0.6 1 0.1

WLV080-0005 6/22/1999 DA13245 Acetochlor 0.5 1 0.1

WLV080-0005 4/26/1999 DA13037 Atrazine (Aatrex) 0.6 4 0.1

WLV080-0005 5/5/1999 DA13063 Atrazine (Aatrex) 0.4 4 0.1

WLV080-0005 5/19/1999 DA13115 Atrazine (Aatrex) 0.9 4 0.1

WLV080-0005 5/26/1999 DA13141 Atrazine (Aatrex) 2.3 1 0.1

WLV080-0005 6/3/1999 DA13167 Atrazine (Aatrex) 6.4 4 0.1

WLV080-0005 6/8/1999 DA13193 Atrazine (Aatrex) 3.8 1 0.1

WLV080-0005 6/15/1999 DA13219 Atrazine (Aatrex) 2.5 1 0.1

WLV080-0005 6/22/1999 DA13245 Atrazine (Aatrex) 2.1 4 0.1

WLV080-0005 6/29/1999 DA13271 Atrazine (Aatrex) 1.4 4 0.1

WLV080-0005 7/7/1999 DA13297 Atrazine (Aatrex) 1.4 4 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-7

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WLV080-0005 7/13/1999 DA13323 Atrazine (Aatrex) 1.1 4 0.1

WLV080-0005 7/20/1999 DA13349 Atrazine (Aatrex) 1 4 0.1

WLV080-0005 7/27/1999 DA13375 Atrazine (Aatrex) 0.9 4 0.1

WLV080-0005 4/26/1999 DA13037 Bromacil 0.2 4 0.1

WLV080-0005 4/26/1999 DA13037 Metolachlor 0.3 4 0.1

WLV080-0005 5/5/1999 DA13063 Metolachlor 0.2 4 0.1

WLV080-0005 5/26/1999 DA13141 Metolachlor 0.7 4 0.1

WLV080-0005 6/3/1999 DA13167 Metolachlor 2 4 0.1

WLV080-0005 6/8/1999 DA13193 Metolachlor 0.9 4 0.1

WLV080-0005 6/15/1999 DA13219 Metolachlor 0.8 4 0.1

WLV080-0005 6/22/1999 DA13245 Metolachlor 0.4 4 0.1

Wabash River at Montezuma

WLV150-0001 4/26/1999 DA13033 Acetochlor 0.1 4 0.1

WLV150-0001 5/25/1999 DA13137 Acetochlor 0.4 1 0.1

WLV150-0001 6/2/1999 DA13163 Acetochlor 0.6 4 0.1

WLV150-0001 6/8/1999 DA13189 Acetochlor 0.5 4 0.1

WLV150-0001 6/22/1999 DA13241 Acetochlor 0.4 4 0.1

WLV150-0001 4/26/1999 DA13033 Atrazine (Aatrex) 0.7 4 0.1

WLV150-0001 5/4/1999 DA13059 Atrazine (Aatrex) 0.3 4 0.1

WLV150-0001 5/11/1999 DA13085 Atrazine (Aatrex) 0.4 1 0.1

WLV150-0001 5/18/1999 DA13111 Atrazine (Aatrex) 1 1 0.1

WLV150-0001 5/25/1999 DA13137 Atrazine (Aatrex) 2 1 0.1

WLV150-0001 6/2/1999 DA13163 Atrazine (Aatrex) 2.8 1 0.1

WLV150-0001 6/8/1999 DA13189 Atrazine (Aatrex) 2.7 4 0.1

WLV150-0001 6/15/1999 DA13215 Atrazine (Aatrex) 3.1 4 0.1

WLV150-0001 6/22/1999 DA13241 Atrazine (Aatrex) 2 1 0.1

WLV150-0001 6/29/1999 DA13267 Atrazine (Aatrex) 1.2 4 0.1

WLV150-0001 7/7/1999 DA13293 Atrazine (Aatrex) 0.9 4 0.1

WLV150-0001 7/13/1999 DA13319 Atrazine (Aatrex) 0.6 4 0.1

WLV150-0001 7/20/1999 DA13345 Atrazine (Aatrex) 0.8 4 0.1

WLV150-0001 7/27/1999 DA13371 Atrazine (Aatrex) 0.7 4 0.1

WLV150-0001 4/26/1999 DA13033 Bromacil 0.2 4 0.1

WLV150-0001 4/26/1999 DA13033 Metolachlor 0.4 4 0.1

WLV150-0001 5/4/1999 DA13059 Metolachlor 0.2 4 0.1

WLV150-0001 5/18/1999 DA13111 Metolachlor 0.4 4 0.1

WLV150-0001 5/25/1999 DA13137 Metolachlor 0.7 4 0.1

WLV150-0001 6/2/1999 DA13163 Metolachlor 0.7 4 0.1

WLV150-0001 6/8/1999 DA13189 Metolachlor 0.7 4 0.1

WLV150-0001 6/15/1999 DA13215 Metolachlor 0.6 4 0.1

WLV150-0001 6/22/1999 DA13241 Metolachlor 0.5 4 0.1

Big Raccoon Creek near Fincastle

WLV160-0002 5/18/1999 DA13113 Acetochlor 0.6 1 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-8

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WLV160-0002 6/2/1999 DA13165 Acetochlor 0.6 4 0.1

WLV160-0002 4/27/1999 DA13035 Atrazine (Aatrex) 0.5 4 0.1

WLV160-0002 5/4/1999 DA13061 Atrazine (Aatrex) 0.1 4 1

WLV160-0002 5/18/1999 DA13113 Atrazine (Aatrex) 9.9 4 0.1

WLV160-0002 5/25/1999 DA13139 Atrazine (Aatrex) 1.7 4 0.1

WLV160-0002 6/2/1999 DA13165 Atrazine (Aatrex) 6.7 1 0.1

WLV160-0002 6/8/1999 DA13191 Atrazine (Aatrex) 0.5 1 0.1

WLV160-0002 6/15/1999 DA13217 Atrazine (Aatrex) 1 4 0.1

WLV160-0002 7/7/1999 DA13295 Atrazine (Aatrex) 0.4 4 0.1

WLV160-0002 7/13/1999 DA13321 Atrazine (Aatrex) 0.4 1 0.1

WLV160-0002 7/20/1999 DA13347 Atrazine (Aatrex) 0.4 4 0.1

WLV160-0002 7/27/1999 DA13373 Atrazine (Aatrex) 0.5 4 0.1

WLV160-0002 7/13/1999 DA13321 Chloroneb 0.8 4 0.1

WLV160-0002 7/20/1999 DA13347 Chloroneb 0.5 4 0.1

WLV160-0002 4/6/1999 DA13011 Di-n-butylphthalate 32 4 0.1

WLV160-0002 5/18/1999 DA13113 Di-n-butylphthalate 13 10 1

WLV160-0002 4/27/1999 DA13035 Metolachlor 0.2 4 0.1

WLV160-0002 5/4/1999 DA13061 Metolachlor 0.1 4 0.1

WLV160-0002 5/18/1999 DA13113 Metolachlor 4.9 4 0.1

WLV160-0002 5/25/1999 DA13139 Metolachlor 0.5 4 0.1

WLV160-0002 6/2/1999 DA13165 Metolachlor 2.8 4 0.1

WLV160-0002 6/15/1999 DA13217 Metolachlor 0.6 4 0.1

Big Raccoon Creek at Ferndale

WLV170-0003 4/27/1999 DA13034 Acetochlor 0.1 4 0.1

WLV170-0003 5/4/1999 DA13060 Alachlor 0.1 4 0.1

WLV170-0003 4/27/1999 DA13034 Atrazine (Aatrex) 1.9 4 0.1

WLV170-0003 4/27/1999 DA13047 Atrazine (Aatrex) 0.8 4 0.1

WLV170-0003 5/4/1999 DA13060 Atrazine (Aatrex) 0.9 4 0.1

WLV170-0003 5/4/1999 DA13073 Atrazine (Aatrex) 1.7 4 0.1

WLV170-0003 5/11/1999 DA13086 Atrazine (Aatrex) 1.3 4 0.1

WLV170-0003 5/18/1999 DA13112 Atrazine (Aatrex) 1.2 4 0.1

WLV170-0003 5/25/1999 DA13138 Atrazine (Aatrex) 1.6 4 0.1

WLV170-0003 5/25/1999 DA13151 Atrazine (Aatrex) 1.5 4 0.1

WLV170-0003 6/2/1999 DA13164 Atrazine (Aatrex) 0.8 4 0.1

WLV170-0003 6/2/1999 DA13177 Atrazine (Aatrex) 0.7 4 0.1

WLV170-0003 6/8/1999 DA13190 Atrazine (Aatrex) 0.9 4 0.1

WLV170-0003 6/15/1999 DA13216 Atrazine (Aatrex) 1.4 4 0.1

WLV170-0003 6/22/1999 DA13242 Atrazine (Aatrex) 1.5 4 0.1

WLV170-0003 6/22/1999 DA13255 Atrazine (Aatrex) 1.3 4 0.1

WLV170-0003 6/29/1999 DA13268 Atrazine (Aatrex) 1.7 4 0.1

WLV170-0003 6/29/1999 DA13281 Atrazine (Aatrex) 1.7 4 0.1

WLV170-0003 7/7/1999 DA13294 Atrazine (Aatrex) 1.9 1 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-9

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WLV170-0003 7/7/1999 DA13307 Atrazine (Aatrex) 1.1 1 0.1

WLV170-0003 7/13/1999 DA13320 Atrazine (Aatrex) 1.7 4 0.1

WLV170-0003 7/20/1999 DA13346 Atrazine (Aatrex) 1.5 1 0.1

WLV170-0003 7/20/1999 DA13359 Atrazine (Aatrex) 2.1 1 0.1

WLV170-0003 7/27/1999 DA13372 Atrazine (Aatrex) 2 1 0.1

WLV170-0003 7/27/1999 DA13385 Atrazine (Aatrex) 1.5 1 0.1

WLV170-0003 4/6/1999 DA13010 Di-n-butylphthalate 78 1 0.1

WLV170-0003 4/27/1999 DA13034 Metolachlor 0.8 1 0.1

WLV170-0003 4/27/1999 DA13047 Metolachlor 0.6 4 0.1

WLV170-0003 5/4/1999 DA13060 Metolachlor 0.5 1 0.1

WLV170-0003 5/4/1999 DA13073 Metolachlor 0.5 4 0.1

WLV170-0003 5/18/1999 DA13112 Metolachlor 0.4 1 0.1

WLV170-0003 5/25/1999 DA13138 Metolachlor 0.5 4 0.1

WLV170-0003 5/25/1999 DA13151 Metolachlor 0.5 4 0.1

WLV170-0003 6/22/1999 DA13242 Metolachlor 0.5 1 0.1

WLV170-0003 6/29/1999 DA13268 Metolachlor 0.5 4 0.1

WLV170-0003 6/29/1999 DA13281 Metolachlor 0.5 4 0.1

WLV170-0003 7/7/1999 DA13294 Metolachlor 0.5 4 0.1

WLV170-0003 7/7/1999 DA13307 Metolachlor 0.6 4 0.1

WLV170-0003 7/13/1999 DA13320 Metolachlor 0.5 4 0.1

WLV170-0003 7/20/1999 DA13346 Metolachlor 0.6 4 0.1

WLV170-0003 7/20/1999 DA13359 Metolachlor 0.6 4 0.1

WLV170-0003 7/27/1999 DA13372 Metolachlor 0.7 4 0.1

WLV170-0003 7/27/1999 DA13385 Metolachlor 0.6 4 0.1

WLV170-0003 5/4/1999 DA13073 Simazine 0.07 4 0.1

Big Raccoon Creek at Coxville

WLV190-0003 4/27/1999 DA13032 Acetochlor 0.2 4 0.1

WLV190-0003 6/2/1999 DA13162 Acetochlor 0.7 4 0.1

WLV190-0003 4/27/1999 DA13032 Atrazine (Aatrex) 2.1 4 0.1

WLV190-0003 5/4/1999 DA13058 Atrazine (Aatrex) 1.1 4 0.1

WLV190-0003 5/11/1999 DA13084 Atrazine (Aatrex) 0.6 4 0.1

WLV190-0003 5/18/1999 DA13110 Atrazine (Aatrex) 1 4 0.1

WLV190-0003 5/25/1999 DA13136 Atrazine (Aatrex) 4 4 0.1

WLV190-0003 6/2/1999 DA13162 Atrazine (Aatrex) 5.3 4 0.1

WLV190-0003 6/8/1999 DA13188 Atrazine (Aatrex) 1.6 1 0.1

WLV190-0003 6/15/1999 DA13214 Atrazine (Aatrex) 1.4 1 0.1

WLV190-0003 6/22/1999 DA13240 Atrazine (Aatrex) 0.7 4 0.1

WLV190-0003 6/29/1999 DA13266 Atrazine (Aatrex) 1 4 1

WLV190-0003 7/20/1999 DA13344 Atrazine (Aatrex) 0.9 1 0.1

WLV190-0003 7/27/1999 DA13370 Atrazine (Aatrex) 0.6 1 0.1

WLV190-0003 4/6/1999 DA13008 Di-n-butylphthalate 78 1 0.1

WLV190-0003 4/27/1999 DA13032 Metolachlor 0.6 1 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-10

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WLV190-0003 5/4/1999 DA13058 Metolachlor 0.3 4 0.1

WLV190-0003 5/25/1999 DA13136 Metolachlor 1.1 4 0.1

WLV190-0003 6/2/1999 DA13162 Metolachlor 2 4 0.1

WLV190-0003 6/8/1999 DA13188 Metolachlor 0.5 4 0.1

WLV190-0003 4/27/1999 DA13032 Simazine 0.08 4 0.1

Wabash River at Mt. Carmel

WLW040-0001 4/28/1999 DA13025 Acetochlor 0.4 4 0.1

WLW040-0001 5/4/1999 DA13051 Acetochlor 0.1 4 0.1

WLW040-0001 5/18/1999 DA13103 Acetochlor 0.6 4 0.1

WLW040-0001 5/25/1999 DA13129 Acetochlor 1.3 4 0.1

WLW040-0001 6/2/1999 DA13155 Acetochlor 0.4 4 0.1

WLW040-0001 6/8/1999 DA13181 Acetochlor 1.5 4 0.1

WLW040-0001 6/15/1999 DA13207 Acetochlor 0.5 4 0.1

WLW040-0001 6/22/1999 DA13233 Acetochlor 0.4 4 0.1

WLW040-0001 4/5/1999 DA13001 Atrazine (Aatrex) 89 4 0.1

WLW040-0001 4/28/1999 DA13025 Atrazine (Aatrex) 1.9 4 0.1

WLW040-0001 5/4/1999 DA13051 Atrazine (Aatrex) 0.9 4 0.1

WLW040-0001 5/11/1999 DA13077 Atrazine (Aatrex) 0.9 4 0.1

WLW040-0001 5/18/1999 DA13103 Atrazine (Aatrex) 3.5 4 0.1

WLW040-0001 5/25/1999 DA13129 Atrazine (Aatrex) 7.6 4 0.1

WLW040-0001 6/2/1999 DA13155 Atrazine (Aatrex) 2.7 10 0.1

WLW040-0001 6/8/1999 DA13181 Atrazine (Aatrex) 12 4 0.1

WLW040-0001 6/15/1999 DA13207 Atrazine (Aatrex) 5.7 4 0.1

WLW040-0001 6/22/1999 DA13233 Atrazine (Aatrex) 2.9 4 0.1

WLW040-0001 6/29/1999 DA13259 Atrazine (Aatrex) 3.4 4 0.1

WLW040-0001 7/7/1999 DA13285 Atrazine (Aatrex) 1.1 1 0.1

WLW040-0001 7/13/1999 DA13311 Atrazine (Aatrex) 0.7 4 0.1

WLW040-0001 7/20/1999 DA13337 Atrazine (Aatrex) 0.7 1 0.1

WLW040-0001 7/27/1999 DA13363 Atrazine (Aatrex) 0.7 10 1

WLW040-0001 4/5/1999 DA13001 Di(2-ethylhexyl)phthalate 25 10 1

WLW040-0001 4/5/1999 DA13001 Dimethylphthalate 12 1 0.1

WLW040-0001 4/28/1999 DA13025 Metolachlor 0.8 1 0.1

WLW040-0001 5/4/1999 DA13051 Metolachlor 0.4 1 0.1

WLW040-0001 5/18/1999 DA13103 Metolachlor 0.8 4 0.1

WLW040-0001 5/25/1999 DA13129 Metolachlor 1.1 4 0.1

WLW040-0001 6/2/1999 DA13155 Metolachlor 0.6 1 0.1

WLW040-0001 6/8/1999 DA13181 Metolachlor 2.7 1 0.1

WLW040-0001 6/15/1999 DA13207 Metolachlor 0.7 4 0.1

WLW040-0001 6/22/1999 DA13233 Metolachlor 0.8 4 0.1

WLW040-0001 6/29/1999 DA13259 Metolachlor 0.7 4 0.1

WLW040-0001 4/5/1999 DA13001 Simazine 25 4 0.1

WLW040-0001 4/28/1999 DA13025 Simazine 0.08 4 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-11

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WLW040-0001 5/4/1999 DA13051 Simazine 0.08 1 0.1

WLW040-0001 5/25/1999 DA13129 Simazine 0.34 4 0.1

WLW040-0001 6/8/1999 DA13181 Simazine 0.47 10 0.1

WLW040-0001 6/15/1999 DA13207 Simazine 0.3 4 0.1

Patoka River near Princeton

WPA080-0002 4/28/1999 DA13026 Acetochlor 0.5 4 0.1

WPA080-0002 5/3/1999 DA13052 Acetochlor 0.5 4 0.1

WPA080-0002 5/10/1999 DA13078 Acetochlor 0.5 4 0.1

WPA080-0002 5/24/1999 DA13130 Acetochlor 0.8 4 0.1

WPA080-0002 6/1/1999 DA13156 Acetochlor 0.4 4 0.1

WPA080-0002 6/7/1999 DA13182 Acetochlor 0.9 4 0.1

WPA080-0002 6/28/1999 DA13260 Acetochlor 0.4 4 0.1

WPA080-0002 4/28/1999 DA13026 Atrazine (Aatrex) 9.5 4 0.1

WPA080-0002 5/3/1999 DA13052 Atrazine (Aatrex) 4.8 4 0.1

WPA080-0002 5/10/1999 DA13078 Atrazine (Aatrex) 5.3 4 0.1

WPA080-0002 5/17/1999 DA13104 Atrazine (Aatrex) 2.6 4 0.1

WPA080-0002 5/24/1999 DA13130 Atrazine (Aatrex) 7.3 4 0.1

WPA080-0002 6/1/1999 DA13156 Atrazine (Aatrex) 6.7 4 0.1

WPA080-0002 6/7/1999 DA13182 Atrazine (Aatrex) 24 4 0.1

WPA080-0002 6/14/1999 DA13208 Atrazine (Aatrex) 4.1 4 0.1

WPA080-0002 6/21/1999 DA13234 Atrazine (Aatrex) 1.9 4 0.1

WPA080-0002 6/28/1999 DA13260 Atrazine (Aatrex) 3.7 4 0.1

WPA080-0002 7/6/1999 DA13286 Atrazine (Aatrex) 2 4 0.1

WPA080-0002 7/12/1999 DA13312 Atrazine (Aatrex) 1.5 4 0.1

WPA080-0002 7/19/1999 DA13338 Atrazine (Aatrex) 0.7 4 0.1

WPA080-0002 7/26/1999 DA13364 Atrazine (Aatrex) 1.7 4 0.1

WPA080-0002 4/28/1999 DA13026 Cyanazine (Bladex) 1.1 4 0.1

WPA080-0002 4/28/1999 DA13026 Metolachlor 1.9 4 0.1

WPA080-0002 5/3/1999 DA13052 Metolachlor 1 1 0.1

WPA080-0002 5/10/1999 DA13078 Metolachlor 1 1 0.1

WPA080-0002 5/17/1999 DA13104 Metolachlor 0.5 1 0.1

WPA080-0002 5/24/1999 DA13130 Metolachlor 0.8 1 0.1

WPA080-0002 6/1/1999 DA13156 Metolachlor 0.6 1 0.1

WPA080-0002 6/7/1999 DA13182 Metolachlor 5.1 1 0.1

WPA080-0002 6/14/1999 DA13208 Metolachlor 1.1 1 0.1

WPA080-0002 6/21/1999 DA13234 Metolachlor 0.6 4 0.1

WPA080-0002 6/28/1999 DA13260 Metolachlor 0.4 1 0.1

WPA080-0002 7/6/1999 DA13286 Metolachlor 1 4 0.1

WPA080-0002 7/12/1999 DA13312 Metolachlor 0.7 4 0.1

WPA080-0002 4/28/1999 DA13026 Simazine 3.6 4 0.1

WPA080-0002 5/3/1999 DA13052 Simazine 1.7 4 0.1

WPA080-0002 5/10/1999 DA13078 Simazine 0.73 4 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-12

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WPA080-0002 5/24/1999 DA13130 Simazine 1.3 4 0.1

WPA080-0002 6/1/1999 DA13156 Simazine 1.4 4 0.1

WPA080-0002 6/7/1999 DA13182 Simazine 2.5 4 0.1

WPA080-0002 6/14/1999 DA13208 Simazine 0.42 4 0.1

WPA080-0002 6/28/1999 DA13260 Simazine 0.83 4 0.1

WPA080-0002 7/6/1999 DA13286 Simazine 0.5 1 0.1

WPA080-0002 7/12/1999 DA13312 Simazine 0.35 1 0.1

Prairie Creek near Lebanon

WSU020-0004 4/6/1999 DA13014 Atrazine (Aatrex) 16 4 0.1

WSU020-0004 4/26/1999 DA13038 Atrazine (Aatrex) 0.4 4 0.1

WSU020-0004 5/5/1999 DA13064 Atrazine (Aatrex) 0.4 4 0.1

WSU020-0004 5/19/1999 DA13116 Atrazine (Aatrex) 1.3 4 0.1

WSU020-0004 5/26/1999 DA13142 Atrazine (Aatrex) 0.9 4 0.1

WSU020-0004 6/3/1999 DA13168 Atrazine (Aatrex) 4.7 4 0.1

WSU020-0004 6/9/1999 DA13194 Atrazine (Aatrex) 9.7 4 0.1

WSU020-0004 6/16/1999 DA13220 Atrazine (Aatrex) 0.8 4 0.1

WSU020-0004 6/23/1999 DA13246 Atrazine (Aatrex) 0.7 4 0.1

WSU020-0004 6/30/1999 DA13272 Atrazine (Aatrex) 1.7 4 0.1

WSU020-0004 7/8/1999 DA13298 Atrazine (Aatrex) 2.3 4 0.1

WSU020-0004 7/14/1999 DA13324 Atrazine (Aatrex) 0.4 4 0.1

WSU020-0004 7/28/1999 DA13376 Chloroneb 43 4 0.1

WSU020-0004 6/30/1999 DA13272 Chlorothalonil (Bravo) 1.1 4 0.1

WSU020-0004 7/8/1999 DA13298 Chlorothalonil (Bravo) 9.4 4 0.1

WSU020-0004 7/28/1999 DA13376 Chlorothalonil (Bravo) 56 4 0.1

WSU020-0004 4/6/1999 DA13014 Di(2-ethylhexyl)phthalate 6.7 4 0.1

WSU020-0004 4/6/1999 DA13014 Di-n-butylphthalate 91 4 0.1

WSU020-0004 5/12/1999 DA13090 Gamma-BHC (Lindane) 0.16 4 0.1

WSU020-0004 5/12/1999 DA13099 Gamma-BHC (Lindane) 0.16 4 0.1

WSU020-0004 4/6/1999 DA13014 Metolachlor 55 4 0.1

WSU020-0004 4/26/1999 DA13038 Metolachlor 0.2 4 0.1

WSU020-0004 5/5/1999 DA13064 Metolachlor 0.2 1 0.1

WSU020-0004 5/19/1999 DA13116 Metolachlor 1.1 1 0.1

WSU020-0004 5/26/1999 DA13142 Metolachlor 0.5 1 0.1

WSU020-0004 6/3/1999 DA13168 Metolachlor 2 10 0.1

WSU020-0004 6/16/1999 DA13220 Metolachlor 0.4 10 1

WSU020-0004 6/23/1999 DA13246 Metolachlor 0.6 10 1

WSU020-0004 6/30/1999 DA13272 Metolachlor 1.1 10 0.1

WSU020-0004 7/8/1999 DA13298 Metolachlor 1.5 4 0.1

WSU020-0004 7/28/1999 DA13376 Metolachlor 0.5 4 0.1

WSU020-0004 5/19/1999 DA13116 Metribuzin 0.5 4 0.1

Sugar Creek at Crawfordsville

WSU050-0006 5/19/1999 DA13114 Acetochlor 0.5 4 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-13

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WSU050-0006 5/19/1999 DA13125 Acetochlor 0.4 4 0.1

WSU050-0006 6/3/1999 DA13166 Acetochlor 0.4 4 0.1

WSU050-0006 4/26/1999 DA13036 Atrazine (Aatrex) 0.5 4 0.1

WSU050-0006 5/5/1999 DA13062 Atrazine (Aatrex) 0.4 4 0.1

WSU050-0006 5/19/1999 DA13114 Atrazine (Aatrex) 6.3 4 0.1

WSU050-0006 5/19/1999 DA13125 Atrazine (Aatrex) 7 4 0.1

WSU050-0006 5/26/1999 DA13140 Atrazine (Aatrex) 1.3 4 0.1

WSU050-0006 6/3/1999 DA13166 Atrazine (Aatrex) 7.3 4 0.1

WSU050-0006 6/9/1999 DA13192 Atrazine (Aatrex) 1.2 4 0.1

WSU050-0006 6/16/1999 DA13218 Atrazine (Aatrex) 2.2 4 0.1

WSU050-0006 6/16/1999 DA13229 Atrazine (Aatrex) 0.9 4 0.1

WSU050-0006 6/23/1999 DA13244 Atrazine (Aatrex) 1.6 4 0.1

WSU050-0006 7/8/1999 DA13296 Atrazine (Aatrex) 1 4 0.1

WSU050-0006 7/14/1999 DA13322 Atrazine (Aatrex) 0.5 4 0.1

WSU050-0006 7/28/1999 DA13374 Atrazine (Aatrex) 0.5 4 0.1

WSU050-0006 7/14/1999 DA13322 Chloroneb 0.5 4 0.1

WSU050-0006 6/3/1999 DA13166 Clomazone 0.5 4 0.1

WSU050-0006 5/19/1999 DA13114 Di-n-butylphthalate 10 4 0.1

WSU050-0006 4/26/1999 DA13036 Metolachlor 0.2 4 1

WSU050-0006 5/5/1999 DA13062 Metolachlor 0.2 4 0.1

WSU050-0006 5/19/1999 DA13114 Metolachlor 2.4 4 0.1

WSU050-0006 5/19/1999 DA13125 Metolachlor 2.7 1 0.1

WSU050-0006 5/26/1999 DA13140 Metolachlor 0.4 1 0.1

WSU050-0006 6/3/1999 DA13166 Metolachlor 3.8 1 0.1

WSU050-0006 6/16/1999 DA13218 Metolachlor 0.8 1 0.1

WSU050-0006 6/16/1999 DA13229 Metolachlor 0.5 4 0.1

WSU050-0006 6/23/1999 DA13244 Metolachlor 0.9 4 0.1

White River near Petersburg

WWL100-0005 4/28/1999 DA13027 Acetochlor 0.7 4 0.1

WWL100-0005 5/3/1999 DA13053 Acetochlor 0.2 4 0.1

WWL100-0005 5/17/1999 DA13105 Acetochlor 0.4 4 0.1

WWL100-0005 5/24/1999 DA13131 Acetochlor 1.2 4 0.1

WWL100-0005 6/7/1999 DA13183 Acetochlor 0.4 4 0.1

WWL100-0005 4/5/1999 DA13003 Atrazine (Aatrex) 2.4 4 0.1

WWL100-0005 4/28/1999 DA13027 Atrazine (Aatrex) 2.6 4 0.1

WWL100-0005 5/3/1999 DA13053 Atrazine (Aatrex) 1.1 4 0.1

WWL100-0005 5/17/1999 DA13105 Atrazine (Aatrex) 1.7 4 0.1

WWL100-0005 5/24/1999 DA13131 Atrazine (Aatrex) 8 4 0.1

WWL100-0005 6/1/1999 DA13157 Atrazine (Aatrex) 2.2 4 0.1

WWL100-0005 6/7/1999 DA13183 Atrazine (Aatrex) 3.2 4 0.1

WWL100-0005 6/14/1999 DA13209 Atrazine (Aatrex) 3.4 1 0.1

WWL100-0005 6/21/1999 DA13235 Atrazine (Aatrex) 1.9 4 0.1
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

A-14

Site Name

Date

Sampled

Sample

Number Parameter

Conc.

μg/L

Dilution

factor

Report Limit

μg/L

WWL100-0005 6/28/1999 DA13261 Atrazine (Aatrex) 2.5 1 0.1

WWL100-0005 7/6/1999 DA13287 Atrazine (Aatrex) 1 4 0.1

WWL100-0005 7/12/1999 DA13313 Atrazine (Aatrex) 0.7 4 0.1

WWL100-0005 7/19/1999 DA13339 Atrazine (Aatrex) 0.6 4 0.1

WWL100-0005 7/26/1999 DA13365 Atrazine (Aatrex) 0.7 4 0.1

WWL100-0005 4/28/1999 DA13027 Cyanazine (Bladex) 0.1 4 0.1

WWL100-0005 5/24/1999 DA13131 Cyanazine (Bladex) 0.7 1 0.1

WWL100-0005 4/5/1999 DA13003 Di(2-ethylhexyl)phthalate 8.6 1 0.1

WWL100-0005 4/28/1999 DA13027 Metolachlor 0.5 1 0.1

WWL100-0005 5/3/1999 DA13053 Metolachlor 0.5 1 0.1

WWL100-0005 5/24/1999 DA13131 Metolachlor 1 1 0.1

WWL100-0005 6/7/1999 DA13183 Metolachlor 0.7 10 0.1

WWL100-0005 6/14/1999 DA13209 Metolachlor 0.8 10 1

WWL100-0005 6/21/1999 DA13235 Metolachlor 0.5 4 0.1

WWL100-0005 4/28/1999 DA13027 Simazine 0.22 1 0.1

WWL100-0005 5/24/1999 DA13131 Simazine 0.39
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

B-1

APPENDIX B

Field Data

Site Name Sample Date Time

DO

mg/L pH

Temp

C

Specific

Conductivity

uohms/cm

Turbidity

NTU’s

Flow

CFS

Iroquois River at Rosebud

UMI020-0002 DA13017 4/7/1999 10:00:00 AM 10.5 8 9.4 569 5.6 23.8

UMI020-0002 DA13041 4/29/1999 10:00:00 AM 7.95 7.62 9.85 551 14 67.2

UMI020-0002 DA13067 5/6/1999 2:30:00 PM 9.56 8 15.75 550 13.5 34

UMI020-0002 DA13093 5/12/1999 2:10:00 PM 8.8 8 19 543 126 28

UMI020-0002 DA13119 5/19/1999 2:10:00 PM 10.02 8.21 20.02 551 17.4 25.2

UMI020-0002 DA13145 5/26/1999 4:20:00 PM 9.96 8.33 18.44 547 23.4 22.9

UMI020-0002 DA13171 6/3/1999 3:00:00 PM 8.72 7.45 20.29 569 24.5 27

UMI020-0002 DA13197 6/9/1999 12:00:00 PM 8.38 8.01 25.67 558 27 21

UMI020-0002 DA13223 6/16/1999 12:20:00 PM 9.54 7.97 17.27 567 42.8 23

UMI020-0002 DA13249 6/23/1999 12:35:00 PM 8.13 7.93 22.86 572 51.5 14

UMI020-0002 DA13275 6/30/1999 5:05:00 PM R 7.65 23.84 587 43.4 19

UMI020-0002 DA13301 7/8/1999 1:20:00 PM 8.83 7.93 24.03 578 46.8 21

UMI020-0002 DA13327 7/14/1999 1:40:00 PM 9.58 8.13 22.14 560 56 13

UMI020-0002 DA13353 7/21/1999 12:40:00 PM 7.43 7.81 26 545 51.2 14

UMI020-0002 DA13379 7/28/1999 12:30:00 PM 6.7 7.9 26 558 66 10.8

Iroquois River near Foresman

UMI040-0001 DA13016 4/7/1999 9:05:00 AM 9.46 8.18 11.46 291 11.2 287

UMI040-0001 DA13040 4/29/1999 9:15:00 AM 9.4 7.8 10.05 500 48 1103

UMI040-0001 DA13066 5/6/1999 1:40:00 PM 8 7.9 17.4 607 20.7 450

UMI040-0001 DA13092 5/12/1999 1:30:00 PM 7.5 7.93 19.2 627 50 266

UMI040-0001 DA13118 5/19/1999 1:15:00 PM 7.45 7.94 19.61 632 41 297

UMI040-0001 DA13144 5/26/1999 3:45:00 PM 8.3 8.13 16.89 633 27 236

UMI040-0001 DA13170 6/3/1999 2:15:00 PM 7.22 7.4 20.05 613 61.9 409

UMI040-0001 DA13196 6/9/1999 11:20:00 AM 6.82 8.04 25.54 656 37.4 192

UMI040-0001 DA13222 6/16/1999 10:55:00 AM 8.44 8.02 18.46 652 55.9 347

UMI040-0001 DA13248 6/23/1999 11:10:00 AM 7.4 8.04 23.25 654 63.8 138

UMI040-0001 DA13274 6/30/1999 11:30:00 AM R 7.87 21.61 626 63 262

UMI040-0001 DA13300 7/8/1999 11:40:00 AM 6.97 7.98 24.74 642 57.2 139

UMI040-0001 DA13326 7/14/1999 11:55:00 AM 7.53 8.23 23.06 676 67 65

UMI040-0001 DA13352 7/21/1999 11:20:00 AM 6.42 7.89 25.57 357 95.4 171

UMI040-0001 DA13378 7/28/1999 11:15:00 AM 6.33 8.01 26.62 647 96 58

Kankakee River at Davis

UMK040-0003 DA13021 4/7/1999 1:20:00 PM 11 8 13 640 15.9 473

UMK040-0003 DA13045 4/29/1999 2:30:00 PM 4.12 7.52 13.37 576 27.7 1022

UMK040-0003 DA13071 5/7/1999 9:45:00 AM 8.14 7.9 15.4 593 12.2 567

UMK040-0003 DA13097 5/13/1999 9:45:00 AM 8.06 7.95 14.91 637 49.1 465
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

B-2

Site Name Sample Date Time

DO

mg/L pH

Temp

C

Specific

Conductivity

uohms/cm

Turbidity

NTU’s

Flow

CFS

UMK040-0003 DA13123 5/20/1999 8:30:00 AM 7.89 8 16.13 633 25.1 482

UMK040-0003 DA13149 5/27/1999 8:20:00 AM 8.2 8.1 14.2 630 35 461

UMK040-0003 DA13175 6/4/1999 8:36:00 AM 7.66 7.56 17.06 635 36.1 431

UMK040-0003 DA13201 6/9/1999 4:40:00 PM 7.43 7.99 24.13 659 21.9 378

UMK040-0003 DA13227 6/16/1999 3:45:00 PM 8.61 8.03 17.29 649 46.6 403

UMK040-0003 DA13253 6/23/1999 4:15:00 PM 7.9 8.06 22.44 658 38.7 335

UMK040-0003 DA13279 6/30/1999 7:25:00 PM R 7.79 20.97 658 57.7 470

UMK040-0003 DA13305 7/8/1999 4:45:00 PM 7.82 7.93 23 652 55.7 429

UMK040-0003 DA13331 7/14/1999 5:25:00 PM 8.1 8.2 22.35 663 57 232

UMK040-0003 DA13357 7/21/1999 4:00:00 PM 7.86 8.12 25.4 655 56 302

UMK040-0003 DA13383 7/28/1999 3:45:00 PM 7.57 8.07 26.7 652 67 269

Yellow River at Knox

UMK060-0001 DA13022 4/7/1999 1:45:00 PM 9.5 8.2 14.34 604 8.3 425

UMK060-0001 DA13046 4/29/1999 2:50:00 PM 3.25 7.87 13.18 434 64.4 1600

UMK060-0001 DA13072 5/7/1999 9:15:00 AM 8.7 8.06 14.8 567 15 572

UMK060-0001 DA13098 5/13/1999 8:05:00 AM 8.07 8.11 14.52 605 12.2 437

UMK060-0001 DA13124 5/20/1999 8:00:00 AM 8.01 8.11 15.5 609 15 366

UMK060-0001 DA13150 5/27/1999 7:45:00 AM 9.33 8.17 12.58 598 27.6 436

UMK060-0001 DA13176 6/4/1999 8:00:00 AM 7.66 7.47 16.41 588 55.2 508

UMK060-0001 DA13202 6/9/1999 3:50:00 PM 7.66 8.16 25.41 634 19.1 293

UMK060-0001 DA13228 6/16/1999 3:05:00 PM 8.59 8.07 18.22 574 61.3 404

UMK060-0001 DA13254 6/23/1999 3:45:00 PM 9.16 8.33 23.22 632 39.1 214

UMK060-0001 DA13280 6/30/1999 7:00:00 PM R 8.09 22.46 602 62 330

UMK060-0001 DA13306 7/8/1999 4:20:00 PM 7.97 8.06 25.01 618 42.7 259

UMK060-0001 DA13332 7/14/1999 5:00:00 PM 10.08 8.55 23.58 628 48.9 179

UMK060-0001 DA13358 7/21/1999 3:25:00 PM 9.52 8.4 27.52 616 54.4 162

UMK060-0001 DA13384 7/28/1999 4:00:00 PM 9.96 8.32 28.24 644 60 120

Kankakee River at Dunns Bridge

UMK080-0001 DA13020 4/7/1999 12:30:00 PM 8.6 8 15.6 529 18.8 1410

UMK080-0001 DA13044 4/29/1999 1:30:00 PM 4.6 7.62 13.26 490 31 4130

UMK080-0001 DA13070 5/7/1999 8:20:00 AM 8.02 7.85 15.4 567 13.2 2550

UMK080-0001 DA13096 5/13/1999 9:00:00 AM 7.68 7.92 16 587 20.2 1760

UMK080-0001 DA13122 5/19/1999 4:40:00 PM 7.45 7.95 18.78 594 33 1460

UMK080-0001 DA13148 5/26/1999 6:20:00 PM 8.16 8.07 15.46 561 61.7 1560

UMK080-0001 DA13174 6/3/1999 5:25:00 PM 7.18 7.47 19.42 577 37.4 1360

UMK080-0001 DA13200 6/9/1999 3:10:00 PM 7 7.97 25.2 607 28.9 1050

UMK080-0001 DA13226 6/16/1999 2:30:00 PM 8.11 8.02 18.59 589 53.5 1220

UMK080-0001 DA13252 6/23/1999 3:00:00 PM 7.43 7.9 22.96 616 109 831

UMK080-0001 DA13278 6/30/1999 3:10:00 PM R 7.78 22.03 604 55.7 1250

UMK080-0001 DA13304 7/8/1999 3:30:00 PM 7.35 7.87 24.2 604 56.2 1150
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

B-3

Site Name Sample Date Time

DO

mg/L pH

Temp

C

Specific

Conductivity

uohms/cm

Turbidity

NTU’s

Flow

CFS

UMK080-0001 DA13330 7/14/1999 4:10:00 PM 7.53 8.07 23.23 632 56 783

UMK080-0001 DA13356 7/21/1999 2:45:00 PM 7.46 8.04 26.09 615 51.5 707

UMK080-0001 DA13382 7/28/1999 2:41:00 PM 7.37 8.11 26.81 642 68 552

Kankakee River at Shelby

UMK110-0002 DA13019 4/7/1999 11:15:00 AM 9.4 8.13 13.05 608 12.3 1710

UMK110-0002 DA13043 4/29/1999 11:40:00 AM 5.04 7.77 12.1 473 35 4900

UMK110-0002 DA13069 5/6/1999 4:30:00 PM 8.12 7.93 16.9 585 13.1 4000

UMK110-0002 DA13095 5/12/1999 3:00:00 PM 7.6 7.9 17.8 621 40 2617

UMK110-0002 DA13121 5/19/1999 3:50:00 PM 7.52 7.99 19.86 636 38.3 1960

UMK110-0002 DA13147 5/26/1999 5:40:00 PM 8.39 8.14 15.96 598 31.7 1800

UMK110-0002 DA13173 6/3/1999 4:35:00 PM 7.21 7.51 20.2 586 46.1 1680

UMK110-0002 DA13199 6/9/1999 1:30:00 PM 7.23 8.02 25.67 622 30.5 1290

UMK110-0002 DA13225 6/16/1999 1:30:00 PM 8.3 8.04 19.29 634 49.6 1550

UMK110-0002 DA13251 6/23/1999 2:00:00 PM 7.71 7.98 22.88 690 48 962

UMK110-0002 DA13277 6/30/1999 4:30:00 PM R 7.92 23.24 609 56 1410

UMK110-0002 DA13303 7/8/1999 2:30:00 PM 7.75 7.93 25.15 656 60 1470

UMK110-0002 DA13329 7/14/1999 3:10:00 PM 7.91 8.14 23.72 694 69.3 860

UMK110-0002 DA13355 7/21/1999 2:00:00 PM 7.48 8.07 26.59 633 62.9 787

UMK110-0002 DA13381 7/28/1999 1:50:00 PM 7.9 8.2 27.6 658 67 556

Singleton Ditch at Schneider

UMK130-0001 DA13018 4/7/1999 10:45:00 AM 9 7.83 12 916 16.6 65

UMK130-0001 DA13042 4/29/1999 11:00:00 AM 7.56 5.9 11.32 472 91 734

UMK130-0001 DA13068 5/6/1999 3:30:00 PM 8.43 7.7 15.68 733 35.6 185

UMK130-0001 DA13094 5/12/1999 3:40:00 PM 7.4 7.7 18.5 857 57 127

UMK130-0001 DA13120 5/19/1999 3:20:00 PM 8.15 7.88 21.18 902 36.2 106

UMK130-0001 DA13146 5/26/1999 5:10:00 PM 8.2 8 19.4 939 34 95

UMK130-0001 DA13172 6/3/1999 4:00:00 PM 7.02 7.27 21.1 823 71.5 133

UMK130-0001 DA13198 6/9/1999 1:00:00 PM 6.58 7.75 25.37 943 53.9 57

UMK130-0001 DA13224 6/16/1999 1:05:00 PM 7.99 7.84 18.44 752 86.3 156

UMK130-0001 DA13250 6/23/1999 1:30:00 PM 7.7 7.8 23.03 939 75.8 68

UMK130-0001 DA13276 6/30/1999 4:00:00 PM R 7.81 24.11 889 102 62

UMK130-0001 DA13302 7/8/1999 2:05:00 PM 7.26 7.8 25.9 940 78.7 69

UMK130-0001 DA13328 7/14/1999 2:35:00 PM 8.57 7.98 25.44 1023 66 48

UMK130-0001 DA13354 7/21/1999 1:30:00 PM 7.57 7.88 27.68 899 93.2 57

UMK130-0001 DA13380 7/28/1999 1:20:00 PM 10.99 8.09 30.14 1080 56 30

Wabash River at Terre Haute

WBU040-0003 DA13007 4/6/1999 10:35:00 AM 11.32 8.4 17.04 618 18.6 8417

WBU040-0003 DA13031 4/27/1999 11:10:00 AM 8.95 8.09 14.44 472 180 28400

WBU040-0003 DA13057 5/3/1999 1:30:00 PM 7.52 7.65 21.66 335 39.6 20900

WBU040-0003 DA13083 5/10/1999 1:20:00 PM 10.79 8.4 19.78 609 47.9 11100
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

B-4

Site Name Sample Date Time

DO

mg/L pH

Temp

C

Specific

Conductivity

uohms/cm

Turbidity

NTU’s

Flow

CFS

WBU040-0003 DA13109 5/17/1999 12:00:00 PM 9.6 8.3 21.45 600 22 11800

WBU040-0003 DA13135 5/24/1999 1:15:00 PM 8.6 8.29 19.8 589 75 11500

WBU040-0003 DA13161 6/1/1999 1:15:00 PM 8.72 7.92 23.52 626 66.2 8240

WBU040-0003 DA13187 6/7/1999 1:45:00 PM 7.36 7.77 25.83 561 73.9 17500

WBU040-0003 DA13213 6/14/1999 12:10:00 PM 6 8.08 25.91 579 81.1 9170

WBU040-0003 DA13239 6/21/1999 11:40:00 AM 9.96 8.16 23.56 640 80 6060

WBU040-0003 DA13265 6/28/1999 12:00:00 PM 11.7 8.2 27.42 581 51.1 5100

WBU040-0003 DA13291 7/6/1999 10:50:00 AM 9.55 6.99 30.9 547 52 4080

WBU040-0003 DA13317 7/12/1999 12:20:00 PM 9.78 8.4 27.51 583 62 2790

WBU040-0003 DA13343 7/19/1999 1:00:00 PM 9.26 8.32 30.48 558 69 2820

WBU040-0003 DA13369 7/26/1999 12:05:00 PM 9.76 7.91 32.15 504 81 2840

Wabash River at Riverton

WBU150-0002 DA13006 4/6/1999 8:41:00 AM 10.18 8.5 15.78 628 86.8 9960

WBU150-0002 DA13030 4/27/1999 12:50:00 PM 8.63 8.02 15.65 461 391 31000

WBU150-0002 DA13056 5/3/1999 2:50:00 PM 8.93 8.03 18.23 508 48 24200

WBU150-0002 DA13082 5/10/1999 2:30:00 PM 9.76 8.41 20.16 600 74.7 13000

WBU150-0002 DA13108 5/17/1999 1:15:00 PM 7.95 8.1 21.7 580 80 13300

WBU150-0002 DA13134 5/24/1999 2:30:00 PM 9.1 8.4 20.2 593 39 11800

WBU150-0002 DA13160 6/1/1999 2:30:00 PM 7.79 7.89 23.14 597 124 9690

WBU150-0002 DA13186 6/7/1999 2:55:00 PM 7.08 7.96 25.34 536 143 21800

WBU150-0002 DA13212 6/14/1999 1:10:00 PM 6.2 7.99 26.14 543 158 10800

WBU150-0002 DA13238 6/21/1999 12:50:00 PM 9.03 8.21 23.2 630 158 7470

WBU150-0002 DA13264 6/28/1999 12:55:00 PM 9.42 8.13 26.76 579 73.3 6440

WBU150-0002 DA13290 7/6/1999 12:50:00 PM 9.2 8.1 30.7 572 65 5260

WBU150-0002 DA13316 7/12/1999 1:30:00 PM 8.24 8.22 26.83 571 77 3910

WBU150-0002 DA13342 7/19/1999 2:00:00 PM 10.28 8.46 30.16 573 79 3550

WBU150-0002 DA13368 7/26/1999 1:30:00 PM 9.1 8.38 32.05 565 55 3680

Busseron Creek near Carlisle

WBU160-0002 DA13005 4/6/1999 8:00:00 AM 8.2 7.74 15.05 378 491 815

WBU160-0002 DA13029 4/27/1999 1:30:00 PM 8.71 7.81 16.1 788 35 181

WBU160-0002 DA13055 5/3/1999 3:35:00 PM 9.12 7.78 18.98 757 14.7 113

WBU160-0002 DA13081 5/10/1999 3:30:00 PM 7.87 7.75 20.69 870 39.2 99

WBU160-0002 DA13107 5/17/1999 1:45:00 PM 7 7.82 22 895 30 112

WBU160-0002 DA13133 5/24/1999 3:20:00 PM 7.1 7.77 18.9 622 68 401

WBU160-0002 DA13159 6/1/1999 3:15:00 PM 7.1 7.46 21.85 925 36 83

WBU160-0002 DA13185 6/7/1999 3:30:00 PM 6.64 7.49 26.48 488 105 499

WBU160-0002 DA13211 6/14/1999 1:45:00 PM 5.45 7.4 23.45 415 710 952

WBU160-0002 DA13237 6/21/1999 1:15:00 PM 7.53 7.76 22.92 907 55.9 74

WBU160-0002 DA13263 6/28/1999 1:30:00 PM 7.28 7.61 24.95 881 90.8 104

WBU160-0002 DA13289 7/6/1999 1:40:00 PM 6.1 7.68 28.35 948 70.2 61
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

B-5

Site Name Sample Date Time

DO

mg/L pH

Temp

C

Specific

Conductivity

uohms/cm

Turbidity

NTU’s

Flow

CFS

WBU160-0002 DA13315 7/12/1999 2:00:00 PM 7.24 7.87 24.02 1035 80.9 49

WBU160-0002 DA13341 7/19/1999 2:40:00 PM 6.64 7.9 26.65 660 118 83

WBU160-0002 DA13367 7/26/1999 2:00:00 PM 6.34 7.95 28.2 1296 87 23

Wabash River at Vincennes

WBU200-0003 DA13004 4/5/1999 6:55:00 PM 9.8 8.44 17.58 550 37.5 10887

WBU200-0003 DA13028 4/27/1999 3:00:00 PM 8.8 8.09 15.9 529 122 32640

WBU200-0003 DA13054 5/4/1999 11:00:00 AM 8.8 8.09 18.6 507 73 25740

WBU200-0003 DA13080 5/11/1999 11:00:00 AM 9.74 8.3 20.63 601 70 13010

WBU200-0003 DA13106 5/18/1999 10:45:00 AM 7.7 8.2 20.6 566 109 13600

WBU200-0003 DA13132 5/25/1999 11:30:00 AM 8.6 8.41 20.2 593 45 12690

WBU200-0003 DA13158 6/2/1999 11:20:00 AM 6.93 7.44 22.33 511 597 14900

WBU200-0003 DA13184 6/8/1999 11:15:00 AM 6.91 7.87 26.17 533 171 24660

WBU200-0003 DA13210 6/14/1999 2:35:00 PM 4.74 7.77 26.53 558 128 12830

WBU200-0003 DA13236 6/21/1999 2:10:00 PM 8.86 8.14 24.01 610 64.7 8158

WBU200-0003 DA13262 6/28/1999 2:30:00 PM 9.06 8.13 26.63 565 124 8028

WBU200-0003 DA13288 7/6/1999 2:35:00 PM 11 8.2 31.1 553 54 5846

WBU200-0003 DA13314 7/12/1999 3:00:00 PM 9.9 8.34 26.93 570 72 2612

WBU200-0003 DA13340 7/19/1999 3:25:00 PM 13.74 8.53 29.94 570 98.3 3805

WBU200-0003 DA13366 7/26/1999 3:05:00 PM 10.95 8.44 32.12 534 118 4103

Wabash River at Lafayette

WLV010-0002 DA13015 4/6/1999 7:00:00 PM 12.3 8.6 13.9 577 13.3 4520

WLV010-0002 DA13039 4/26/1999 12:50:00 PM 9.56 8.13 13.57 457 125 20100

WLV010-0002 DA13065 5/6/1999 12:20:00 PM 9.31 8.34 17.5 535 14.4 580

WLV010-0002 DA13091 5/12/1999 11:30:00 AM 9.7 8.3 20.2 557 31 5300

WLV010-0002 DA13117 5/19/1999 11:30:00 AM 9.31 8.51 19.82 556 34.5 5140

WLV010-0002 DA13143 5/26/1999 2:20:00 PM 7.87 8.18 17.53 558 112 8600

WLV010-0002 DA13169 6/3/1999 12:45:00 PM 7.08 7.47 20.16 509 126 13200

WLV010-0002 DA13195 6/9/1999 10:00:00 AM 9.78 8.35 25.66 562 25.1 4560

WLV010-0002 DA13221 6/16/1999 9:50:00 AM 7.52 8.18 20.53 524 160 5240

WLV010-0002 DA13247 6/23/1999 10:10:00 AM 10.74 8.37 23.48 560 49.1 2790

WLV010-0002 DA13273 6/30/1999 10:25:00 AM R 8.27 23.61 534 41.9 2890

WLV010-0002 DA13299 7/8/1999 10:05:00 AM 10.12 8.33 26.18 502 45.9 2060

WLV010-0002 DA13325 7/14/1999 10:40:00 AM 10.84 8.6 24.8 515 103 1640

WLV010-0002 DA13351 7/21/1999 10:10:00 AM 7.84 8.22 27.51 505 72.1 2310

WLV010-0002 DA13377 7/28/1999 10:15:00 AM 8.39 8.2 27.6 505 71 1400

Wabash River at Covington

WLV080-0005 DA13013 4/6/1999 4:45:00 PM 12.66 8.69 13.3 603 19.2 9930

WLV080-0005 DA13037 4/26/1999 4:05:00 PM 9.36 8.11 13.5 456 190 9240

WLV080-0005 DA13063 5/5/1999 8:40:00 AM 9.1 8.2 17.43 560 27 25000

WLV080-0005 DA13089 5/12/1999 8:30:00 AM 9.63 8.44 19.87 594 53.7 5730
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

B-6

Site Name Sample Date Time

DO

mg/L pH

Temp

C

Specific

Conductivity

uohms/cm

Turbidity

NTU’s

Flow

CFS

WLV080-0005 DA13115 5/19/1999 8:25:00 AM 9.84 8.49 18.73 580 27 5840

WLV080-0005 DA13141 5/26/1999 8:30:00 AM 8.43 8.37 15.74 608 41.6 13300

WLV080-0005 DA13167 6/3/1999 8:45:00 AM 7.13 7.35 20.55 558 193 6090

WLV080-0005 DA13193 6/8/1999 6:15:00 PM 13.06 8.7 26.84 605 35.3 6560

WLV080-0005 DA13219 6/15/1999 5:00:00 PM 8.84 8.29 23.35 578 123 3310

WLV080-0005 DA13245 6/22/1999 4:10:00 PM 14.5 8.58 24.29 597 60 4910

WLV080-0005 DA13271 6/29/1999 5:15:00 PM 15.85 8.58 25.4 575 54.5 2540

WLV080-0005 DA13297 7/7/1999 4:45:00 PM 15.1 8.75 28.71 448 63.7 1890

WLV080-0005 DA13323 7/13/1999 3:45:00 PM 15.81 8.95 26.24 531 83 1750

WLV080-0005 DA13349 7/20/1999 3:35:00 PM 15.24 8.81 28.25 528 79.3 1590

WLV080-0005 DA13375 7/27/1999 3:00:00 PM 14.52 9.04 31.02 506 82 2980

Wabash River at Montezuma

WLV150-0001 DA13009 4/6/1999 12:00:00 PM 10.7 8.5 15.95 625 40.2 7260

WLV150-0001 DA13033 4/26/1999 5:00:00 PM 9.01 8.03 14.3 457 233 26500

WLV150-0001 DA13059 5/4/1999 2:40:00 PM 8.23 18.9 558 34 15500

WLV150-0001 DA13085 5/11/1999 2:25:00 PM 12.54 8.61 20.56 612 41.7 8880

WLV150-0001 DA13111 5/18/1999 2:00:00 PM 9.9 8.5 21.2 603 35 9334

WLV150-0001 DA13137 5/25/1999 3:15:00 PM 9.8 8.5 18.8 611 37 10380

WLV150-0001 DA13163 6/2/1999 3:00:00 PM 6.39 7.71 22.11 578 219 12120

WLV150-0001 DA13189 6/8/1999 5:15:00 PM 9.24 8.39 27.09 592 55.7 10600

WLV150-0001 DA13215 6/15/1999 4:10:00 PM 8.21 8.28 24.08 551 216 10900

WLV150-0001 DA13241 6/22/1999 3:15:00 PM 13.1 8.61 25.85 617 879 4960

WLV150-0001 DA13267 6/29/1999 4:30:00 PM 12.23 8.42 26.54 563 76.8 5490

WLV150-0001 DA13293 7/7/1999 3:50:00 PM 14.37 8.73 29.61 508 63 3630

WLV150-0001 DA13319 7/13/1999 5:00:00 PM 14.29 8.92 27.75 539 74.3 2180

WLV150-0001 DA13345 7/20/1999 3:00:00 PM 11.28 8.63 31.04 532 74.3 3340

WLV150-0001 DA13371 7/27/1999 4:15:00 PM 11.77 8.77 32.2 482 84 2220

Big Raccoon Creek near Fincastle

WLV160-0002 DA13011 4/6/1999 2:55:00 PM 11.5 8.5 15.5 557 7.61 79

WLV160-0002 DA13035 4/27/1999 8:10:00 AM 8.99 8.16 14.3 584 9 124

WLV160-0002 DA13061 5/4/1999 4:20:00 PM 10.37 8.38 20.64 584 4.48 96

WLV160-0002 DA13087 5/11/1999 3:25:00 PM 9.87 8.25 21.72 600 19 64

WLV160-0002 DA13113 5/18/1999 3:00:00 PM 7.1 8.1 20.3 450 381 198

WLV160-0002 DA13139 5/25/1999 5:10:00 PM 9 8.3 15.8 601 22 150

WLV160-0002 DA13165 6/2/1999 4:30:00 PM 7.73 7.27 19.51 399 254 524

WLV160-0002 DA13191 6/8/1999 4:25:00 PM 8.3 8.16 27.51 634 15.1 71

WLV160-0002 DA13217 6/15/1999 3:15:00 PM 8.67 7.93 22.04 592 55.2 72

WLV160-0002 DA13243 6/22/1999 2:30:00 PM 10.45 8.28 24.97 624 29.6 33

WLV160-0002 DA13269 6/29/1999 3:30:00 PM 9.15 8.04 24.18 626 38.3 27

WLV160-0002 DA13295 7/7/1999 2:45:00 PM 8.96 8.11 29.01 608 69.9 13
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

B-7

Site Name Sample Date Time

DO

mg/L pH

Temp

C

Specific

Conductivity

uohms/cm

Turbidity

NTU’s

Flow

CFS

WLV160-0002 DA13321 7/13/1999 4:00:00 PM 9.76 8.14 25.98 606 46 9

WLV160-0002 DA13347 7/20/1999 2:00:00 PM 9.71 8.25 27.48 478 74.2 24

WLV160-0002 DA13373 7/27/1999 3:10:00 PM 8.52 7.98 30.7 530 72 10

Big Raccoon Creek at Ferndale

WLV170-0003 DA13010 4/6/1999 1:50:00 PM 10.8 8.5 16 60.9 13.1 23

WLV170-0003 DA13034 4/27/1999 9:00:00 AM 9.47 8.05 12.12 484 18.7 27

WLV170-0003 DA13060 5/4/1999 3:40:00 PM 10.45 8.04 15.9 474 34.5 28

WLV170-0003 DA13086 5/11/1999 4:00:00 PM 9.7 7.87 15.52 479 29 28

WLV170-0003 DA13112 5/18/1999 3:40:00 PM 9 7.8 14.4 476 16 28

WLV170-0003 DA13138 5/25/1999 4:10:00 PM 9 8 13.3 476 15 225

WLV170-0003 DA13164 6/2/1999 3:50:00 PM 8.94 7.46 15.67 474 26.1 121

WLV170-0003 DA13190 6/8/1999 3:40:00 PM 9.11 7.69 18.46 480 18.6 159

WLV170-0003 DA13216 6/15/1999 2:45:00 PM 9.2 7.71 16.4 477 39.6 245

WLV170-0003 DA13242 6/22/1999 1:45:00 PM 8.55 7.73 20.29 488 36.5 29

WLV170-0003 DA13268 6/29/1999 2:40:00 PM 9.3 7.77 18.71 478 42.5 82

WLV170-0003 DA13294 7/7/1999 2:05:00 PM 8.06 7.7 21.12 498 37.5 29

WLV170-0003 DA13320 7/13/1999 3:25:00 PM 8.07 7.83 21.03 497 43.7 28

WLV170-0003 DA13346 7/20/1999 1:20:00 PM 8.79 7.57 18.11 499 52 109

WLV170-0003 DA13372 7/27/1999 2:30:00 PM 7.82 7.86 22.4 507 58 29

Big Raccoon Creek at Coxville

WLV190-0003 DA13008 4/6/1999 11:15:00 AM 9.3 8.5 17.4 1.7 8.59 210

WLV190-0003 DA13032 4/27/1999 10:20:00 AM 9.15 8.11 14.64 526 10.7 330

WLV190-0003 DA13058 5/4/1999 1:45:00 PM 9.36 8.17 20.33 547 9.16 218

WLV190-0003 DA13084 5/11/1999 1:30:00 PM 8.76 8.1 21.05 564 20.9 170

WLV190-0003 DA13110 5/18/1999 1:00:00 PM 8 8.1 20.2 527 15 197

WLV190-0003 DA13136 5/25/1999 2:15:00 PM 8.7 8.2 17.6 496 39 353

WLV190-0003 DA13162 6/2/1999 2:05:00 PM 7.65 7.34 19.27 311 652 1780

WLV190-0003 DA13188 6/8/1999 2:20:00 PM 8.43 8.08 24.99 506 29.2 455

WLV190-0003 DA13214 6/15/1999 1:40:00 PM 8.93 8.06 20.18 506 83.4 344

WLV190-0003 DA13240 6/22/1999 12:55:00 PM 8.89 8.08 23.24 599 35.8 136

WLV190-0003 DA13266 6/29/1999 1:30:00 PM 9.58 8.05 21.9 510 60.9 182

WLV190-0003 DA13292 7/7/1999 1:10:00 PM 8.15 7.98 26.31 585 39.2 95

WLV190-0003 DA13318 7/13/1999 2:20:00 PM 8.84 8.26 24.02 607 44 77

WLV190-0003 DA13344 7/20/1999 12:30:00 PM 7.03 7.72 24.6 175 998 1320

WLV190-0003 DA13370 7/27/1999 1:30:00 PM 8.03 7.95 27.61 570 70 100

Wabash River at Mt. Carmel

WLW040-0001 DA13001 4/5/1999 3:45:00 PM 7.82 8.2 20.4 1300 75.5 35900

WLW040-0001 DA13025 4/28/1999 9:30:00 AM 8.4 7.9 15.17 497 182 56700

WLW040-0001 DA13051 5/4/1999 9:00:00 AM 8.77 8.09 17.15 508 64 25200

WLW040-0001 DA13077 5/11/1999 8:50:00 AM 9.1 8.29 20.12 581 64 47500
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

B-8

Site Name Sample Date Time

DO

mg/L pH

Temp

C

Specific

Conductivity

uohms/cm

Turbidity

NTU’s

Flow

CFS

WLW040-0001 DA13103 5/18/1999 8:45:00 AM 7.9 8.2 20.5 576 40 26700

WLW040-0001 DA13129 5/25/1999 9:00:00 AM 7.3 8.2 20 564 43 24600

WLW040-0001 DA13155 6/2/1999 9:00:00 AM 7.93 7.71 22.6 586 156 20900

WLW040-0001 DA13181 6/8/1999 8:45:00 AM 5.8 7.6 24.8 434 49800

WLW040-0001 DA13207 6/15/1999 8:30:00 AM 7.94 8.11 23.73 535 155 23400

WLW040-0001 DA13233 6/22/1999 8:30:00 AM 9 8.22 600 154 13700

WLW040-0001 DA13259 6/29/1999 8:50:00 AM 7.82 7.81 23.87 410 218 22900

WLW040-0001 DA13285 7/7/1999 8:30:00 AM 8.35 7.7 28.8 533 84 16500

WLW040-0001 DA13311 7/13/1999 8:55:00 AM 9.11 8.44 25.78 538 67 10900

WLW040-0001 DA13337 7/20/1999 8:25:00 AM 11.54 8.16 29.47 522 11 7180

WLW040-0001 DA13363 7/27/1999 9:00:00 AM 10.25 8.2 31 494 99 7620

Patoka River nearPrinceton

WPA080-0002 DA13002 4/5/1999 4:25:00 PM 7.64 7.4 16.8 479 111 1850

WPA080-0002 DA13026 4/28/1999 12:20:00 PM 8 7.49 15 344 292 2440

WPA080-0002 DA13052 5/3/1999 5:00:00 PM 6.86 7.72 19.53 448 39.2 2640

WPA080-0002 DA13078 5/10/1999 5:30:00 PM 7.46 7.31 20.4 673 119 1000

WPA080-0002 DA13104 5/17/1999 3:50:00 PM 6.7 7.74 22.6 1064 68 277

WPA080-0002 DA13130 5/24/1999 5:40:00 PM 7.1 7.81 20.1 1340 91 204

WPA080-0002 DA13156 6/1/1999 5:15:00 PM 6.85 7.44 22.59 1498 86.6 204

WPA080-0002 DA13182 6/7/1999 5:40:00 PM 5.8 7.5 25.2 761 128 684

WPA080-0002 DA13208 6/14/1999 4:40:00 PM 6.25 7.86 26.25 1287 77 190

WPA080-0002 DA13234 6/21/1999 4:00:00 PM 8.15 7.88 24 1790 76 126

WPA080-0002 DA13260 6/28/1999 4:20:00 PM 6.33 7.43 24.89 318 887 934

WPA080-0002 DA13286 7/6/1999 4:25:00 PM 5.25 7.8 28.7 331 46.2 3430

WPA080-0002 DA13312 7/12/1999 5:00:00 PM 4.98 7.87 24.11 428 74 2220

WPA080-0002 DA13338 7/19/1999 5:17:00 PM 7.11 7.71 27.96 1178 95.8 147

WPA080-0002 DA13364 7/26/1999 4:45:00 PM 7.8 7.92 30.1 1076 137 106

Prairie Creek near Lebanon

WSU020-0004 DA13014 4/6/1999 6:00:00 PM 11.2 8.9 16.3 569 8.26 24

WSU020-0004 DA13038 4/26/1999 11:30:00 AM 10.81 8.18 12.84 750 7 39

WSU020-0004 DA13064 5/5/1999 10:20:00 AM 10.7 8.3 18.4 749 4.5 32

WSU020-0004 DA13090 5/12/1999 10:20:00 AM 11.3 8.34 20.46 821 6.64 18

WSU020-0004 DA13116 5/19/1999 10:30:00 AM 9.12 8.11 16.06 656 21.3 67

WSU020-0004 DA13142 5/26/1999 12:45:00 PM 10.26 8.43 16.82 757 8.2 31

WSU020-0004 DA13168 6/3/1999 10:35:00 AM 8.39 7.66 18.43 594 54.4 93

WSU020-0004 DA13194 6/9/1999 8:50:00 AM 8.73 8.2 23 803 11.1 19

WSU020-0004 DA13220 6/16/1999 9:00:00 AM 10.26 8.35 16.88 801 25.4 13

WSU020-0004 DA13246 6/23/1999 9:10:00 AM 10.11 8.38 21.68 858 26.1 9

WSU020-0004 DA13272 6/30/1999 9:20:00 AM R 8.26 20.88 683 26 4

WSU020-0004 DA13298 7/8/1999 9:10:00 AM 7.93 8.13 23.36 747 95.5 3
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

B-9

Site Name Sample Date Time

DO

mg/L pH

Temp

C

Specific

Conductivity

uohms/cm

Turbidity

NTU’s

Flow

CFS

WSU020-0004 DA13324 7/14/1999 9:40:00 AM 9.83 8.5 22.47 998 60 3

WSU020-0004 DA13350 7/21/1999 9:20:00 AM 7.92 8.17 25.87 794 39.1 6

WSU020-0004 DA13376 7/28/1999 9:10:00 AM 7.28 8.07 24.57 627 64 12

Sugar Creek at Crawfordsville

WSU050-0006 DA13012 4/6/1999 3:45:00 PM 11.1 8.5 16.4 624 5.2 217

WSU050-0006 DA13036 4/26/1999 3:00:00 PM 11.46 8.46 14.01 641 10.2 516

WSU050-0006 DA13062 5/5/1999 9:30:00 AM 8.15 8.19 18.38 607 5.1 395

WSU050-0006 DA13088 5/12/1999 9:25:00 AM 6.99 8.01 20.5 625 7.74 205

WSU050-0006 DA13114 5/19/1999 9:20:00 AM 8.14 8.19 17.15 588 29.6 245

WSU050-0006 DA13140 5/26/1999 9:45:00 AM 8.81 8.41 14.65 651 12.1 374

WSU050-0006 DA13166 6/3/1999 9:35:00 AM 8.2 7.46 17.87 506 143 1933

WSU050-0006 DA13192 6/9/1999 7:50:00 AM 7.06 8.21 24.77 650 18.3 275

WSU050-0006 DA13218 6/16/1999 8:10:00 AM 8.34 8.27 18.39 631 46.6 267

WSU050-0006 DA13244 6/23/1999 8:00:00 AM 6.81 7.93 22.13 591 39.8 138

WSU050-0006 DA13270 6/30/1999 8:15:00 AM R 8.09 21.39 679 33.1 133

WSU050-0006 DA13296 7/8/1999 8:10:00 AM 6.08 8.05 24.46 641 32.9 53

WSU050-0006 DA13322 7/14/1999 8:35:00 AM 7.01 8.22 23.2 633 26.8 29

WSU050-0006 DA13348 7/21/1999 8:23:00 AM 5.85 8.04 26.25 593 43.7 69

WSU050-0006 DA13374 7/28/1999 8:20:00 AM 6 8.07 28.3 571 53 23

White River near Petersburg

WWL100-0005 DA13003 4/5/1999 5:35:00 PM 10.4 8.25 16 503 67.9 13500

WWL100-0005 DA13027 4/28/1999 1:00:00 PM 8.4 7.88 16.2 469 81 17500

WWL100-0005 DA13053 5/3/1999 6:05:00 PM 9.07 8.12 19.19 481 48 15000

WWL100-0005 DA13079 5/10/1999 4:45:00 PM 10.45 8.42 21.11 535 55.6 9880

WWL100-0005 DA13105 5/17/1999 3:00:00 PM 10.3 8.5 23.5 572 56 8510

WWL100-0005 DA13131 5/24/1999 4:45:00 PM 7.4 7.9 20.5 503 122 10200

WWL100-0005 DA13157 6/1/1999 4:30:00 PM 10.71 7.9 24.61 579 43.7 13500

WWL100-0005 DA13183 6/7/1999 4:50:00 PM 7.77 7.98 26.89 5.14 144 13900

WWL100-0005 DA13209 6/14/1999 4:00:00 PM 5.56 8.36 27.81 580 110 6160

WWL100-0005 DA13235 6/21/1999 3:20:00 PM 11.42 8.45 26.63 603 86 4390

WWL100-0005 DA13261 6/28/1999 3:35:00 PM 7.01 7.78 26.21 450 334 6400

WWL100-0005 DA13287 7/6/1999 3:40:00 PM 11.38 8.5 31.11 572 87.3 6260

WWL100-0005 DA13313 7/12/1999 4:10:00 PM 13.48 8.78 28.26 570 86.2 4020

WWL100-0005 DA13339 7/19/1999 4:35:00 PM 10.48 8.54 31.72 577 58.2 2770

WWL100-0005 DA13365 7/26/1999 4:00:00 PM 10.39 8.66 34 599 75 3310
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin

B-10
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

C-1

Appendix C

Descriptive Statistics

Iroquois River near Rosebud

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.020 -0.023 0.063 0.300 0.000 0.300 0.300 0.006 0.077

ATRA 15 0.147 0.005 0.288 2.200 0.000 0.700 0.700 0.066 0.256

METO 16 6.375 -7.071 19.821 102.000 0.000 101.000 101.000 636.755 25.234

Iroquois River near Foresman

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.060 -0.018 0.138 0.900 0.000 0.500 0.500 0.020 0.140

ATRA 15 0.367 0.036 0.697 5.500 0.000 2.100 2.100 0.357 0.597

METOL 15 0.073 -0.056 0.203 1.100 0.000 0.900 0.900 0.055 0.234

Kankakee River at Dunns Bridge

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.160 -0.183 0.503 2.400 0.000 2.400 2.400 0.384 0.620

ATRA 15 0.467 -0.419 1.352 7.000 0.000 6.200 6.200 2.558 1.599

METOL 15 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Kankakee River at Shelby

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.000 0.000 0.000 0.000 0.000 0.000 0.000

ATRA 15 0.047 -0.053 0.147 0.700 0.000 0.700 0.700 0.033 0.181

METOL 15 0.007 -0.008 0.021 0.100 0.000 0.100 0.100 0.001 0.026
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

C-2

Kankakee River near Davis

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.000 0.000 0.000 0.000 0.000 0.000 0.000

ATRA 15 0.040 -0.046 0.126 0.600 0.000 0.600 0.600 0.024 0.155

METOL 15 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Singleton Ditch near Schneider

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.160 -0.020 0.340 2.400 0.000 1.100 1.100 0.105 0.325

ATRA 15 0.620 -0.123 1.363 9.300 0.000 4.400 4.400 1.799 1.341

METOL 15 0.107 -0.048 0.261 1.600 0.000 1.000 1.000 0.078 0.279

Yellow River at Knox

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.187 -0.032 0.405 2.800 0.000 1.100 1.100 0.156 0.394

ATRA 15 0.753 -0.044 1.551 11.300 0.000 3.800 3.800 2.073 1.440

METOL 15 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Big Raccoon Creek near Coxville

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Min Max Range Variance Std.Dev.

ACETO 15 0.060 -0.042 0.162 0.900 0.000 0.700 0.700 0.034 0.184

ATRA 15 1.353 0.532 2.174 20.300 0.000 5.300 5.300 2.198 1.483

METOL 15 0.300 -0.016 0.616 4.500 0.000 2.000 2.000 0.326 0.571
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

C-3

Big Raccoon Creek near Ferndale

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 25 0.004 -0.004 0.012 0.100 0.000 0.100 0.100 0.000 0.020

ATRA 25 1.308 1.079 1.537 32.700 0.000 2.100 2.100 0.307 0.554

METOL 25 0.376 0.263 0.489 9.400 0.000 0.800 0.800 0.075 0.274

Big Raccoon Creek near Fincastle

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.080 -0.037 0.197 1.200 0.000 0.600 0.600 0.045 0.211

ATRA 15 1.473 -0.117 3.064 22.100 0.000 9.900 9.900 8.248 2.872

METOL 15 0.607 -0.162 1.376 9.100 0.000 4.900 4.900 1.928 1.388

Busseron Creek near Carlisle

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.613 0.111 1.116 9.200 0.000 3.200 3.200 0.823 0.907

ATRA 15 8.173 -1.905 18.252 122.600 0.400 73.000 72.600 331.205 18.199

METOL 15 0.180 -0.040 0.400 2.700 0.000 1.400 1.400 0.157 0.397

Prarie Creek near Lebanon

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.000 0.000 0.000 0.000 0.000 0.000 0.000

ATRA 15 2.620 0.137 5.103 39.300 0.000 16.000 16.000 20.107 4.484

METOL 15 4.207 -3.582 11.995 63.100 0.000 55.000 55.000 197.809 14.064
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

C-4

Patoka River near Princeton

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.267 0.088 0.445 4.000 0.000 0.900 0.900 0.104 0.322

ATRA 15 5.053 1.801 8.306 75.800 0.000 24.000 24.000 34.501 5.874

METOL 15 0.980 0.291 1.669 14.700 0.000 5.100 5.100 1.549 1.245

Sugar Creek at Crawfordsville

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 17 0.076 -0.012 0.165 1.300 0.000 0.500 0.500 0.029 0.171

ATRA 17 1.806 0.522 3.090 30.700 0.000 7.300 7.300 6.237 2.497

METOL 17 0.700 0.110 1.290 11.900 0.000 3.800 3.800 1.319 1.148

Wabash River at Lafayette

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.313 0.054 0.573 4.700 0.000 1.200 1.200 0.220 0.469

ATRA 15 2.033 0.884 3.182 30.500 0.000 6.500 6.500 4.304 2.075

METOL 15 0.460 0.060 0.860 6.900 0.000 2.200 2.200 0.521 0.722

Wabash River at Riverton

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.227 0.021 0.432 3.400 0.000 1.200 1.200 0.138 0.371

ATRA 15 1.840 0.613 3.067 27.600 0.000 6.700 6.700 4.910 2.216

METOL 15 0.387 0.044 0.729 5.800 0.000 1.700 1.700 0.383 0.619
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

C-5

Wabash River at Terre Haute

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.140 0.020 0.260 2.100 0.000 0.500 0.500 0.047 0.216

ATRA 15 1.333 0.780 1.886 20.000 0.000 3.500 3.500 0.997 0.998

METOL 15 0.293 0.094 0.492 4.400 0.000 1.000 1.000 0.129 0.359

Wabash River at Vincennese

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.333 0.066 0.600 5.000 0.000 1.400 1.400 0.232 0.482

ATRA 15 3.367 1.329 5.404 50.500 0.400 11.000 10.600 13.541 3.680

METOL 15 0.607 0.241 0.972 9.100 0.000 1.700 1.700 0.435 0.660

White River near Petersburg

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 14 0.207 -0.001 0.415 2.900 0.000 1.200 1.200 0.130 0.360

ATRA 14 2.286 1.196 3.376 32.000 0.600 8.000 7.400 3.563 1.888

METOL 14 0.286 0.075 0.497 4.000 0.000 1.000 1.000 0.134 0.366

Wabash River at Covington

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.167 0.022 0.311 2.500 0.000 0.700 0.700 0.068 0.261

ATRA 15 1.653 0.734 2.573 24.800 0.000 6.400 6.400 2.758 1.661

METOL 15 0.353 0.044 0.662 5.300 0.000 2.000 2.000 0.311 0.558
An Assessment of Pesticides in the Lower Wabash River Basin & Kankakee River Basin IDEM 032/02/028/2002

C-6

Wabash River at Montezuma

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.133 0.012 0.255 2.000 0.000 0.600 0.600 0.048 0.219

ATRA 15 1.280 0.733 1.827 19.200 0.000 3.100 3.100 0.975 0.987

METOL 15 0.280 0.114 0.446 4.200 0.000 0.700 0.700 0.090 0.300

Wabash River at Mount Carmel, IL

Confid. Confid.

Valid N Mean -95.000% 95.000 Sum Minimum Maximum Range Variance Std.Dev.

ACETO 15 0.347 0.080 0.613 5.200 0.000 1.500 1.500 0.231 0.481

ATRA 15 8.913 -3.479 21.306 133.700 0.700 89.000 88.300 500.783 22.378

METOL 15 0.573 0.182 0.965 8.600 0.000 2.700 2.700 0.499 0.707