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NATIONAL WATER-QUALITY ASSESSMENT PROGRAM

Water-Resources Investigations Report 00-4284

U.S. Department of the Interior 

U.S. Geological Survey

Selected Data from Field Studies of Pesticide 

Runoff to Surface Waters

by Paul D. Capel, Thomas A. Winterstein, andSteven J. Larson

U.S. GEOLOGICAL SURVEY

Water-Resources Investigations Report 00-4284

NATIONAL WATER-QUALITY ASSESSMENT PROGRAM

COin 

o

CO

Sacramento, California 

2001
U.S. DEPARTMENT OF THE INTERIOR 

GALE A. NORTON, Secretary

U.S. GEOLOGICAL SURVEY 

Charles G. Groat, Director

The use of firm, trade, and brand names in this report is for identification purposes only and does 

not constitute endorsement by the United States Government

For additional information write to:

District Chief 

U.S. Geological Survey 

Water Resources Division 

Placer Hall, 6000 J Street 

Sacramento, California 95819-6129

Copies of this report can be purchased 

from:

U.S. Geological Survey 

Branch of Information Services 

Box 25286 

Denver, CO 80225-0286
FOREWORD

The U.S. Geological Survey (USGS) is committed to 

serve the Nation with accurate and timely scientific information that helps enhance and protect the overall quality of 

life, and facilitates effective management of water, biological, energy, and mineral resources. Information on the quality of the Nation's water resources is of critical interest to 

the USGS because it is so integrally linked to the long-term 

availability of water that is clean and safe for drinking and 

recreation and that is suitable for industry, irrigation, and 

habitat for fish and wildlife. Escalating population growth 

and increasing demands for the multiple water uses make 

water availability, now measured in terms of quantity and 

quality, even more critical to the long-term sustainability of 

our communities and ecosystems.

The USGS implemented the National Water-Quality 

Assessment (NAWQA) Program to support national, 

regional, and local information needs and decisions related 

to water-quality management and policy. Shaped by and 

coordinated with ongoing efforts of other Federal, State, and 

local agencies, the NAWQA Program is designed to answer: 

What is the condition of our Nation's streams and ground 

water? How are the conditions changing over time? How do 

natural features and human activities affect the quality of 

streams and ground water, and where are those effects most 

pronounced? By combining information on water chemistry, physical characteristics, stream habitat, and aquatic life, 

the NAWQA Program aims to provide science-based 

insights for current and emerging water issues. NAWQA 

results can contribute to informed decisions that result in 

practical and effective water-resource management and 

strategies that protect and restore water quality.

Since 1991, the NAWQA Program has implemented 

interdisciplinary assessments in more than 50 of the 

Nation's most important river basins and aquifers, referred 

to as Study Units. Collectively, these Study Units account 

for more than 60 percent of the overall water use and population served by public water supply, and are representative 

of the Nation's major hydrologic landscapes, priority ecological resources, and agricultural, urban, and natural 

sources of contamination.

Each assessment is guided by a nationally consistent 

study design and methods of sampling and analysis. The

assessments thereby build local knowledge about waterquality issues and trends in a particular stream or aquifer 

while providing an understanding of how and why water 

quality varies regionally and nationally. The consistent, 

multi-scale approach helps to determine if certain types of 

water-quality issues are isolated or pervasive, and allows 

direct comparisons of how human activities and natural processes affect water quality and ecological health in the 

Nation's diverse geographic and environmental settings. 

Comprehensive assessments on pesticides, nutrients, volatile organic compounds, trace metals, and aquatic ecology 

are developed at the national scale through comparative 

analysis of the Study-Unit findings.

The USGS places high value on the communication 

and dissemination of credible, timely, and relevant science 

so that the most recent and available knowledge about water 

resources can be applied in management and policy decisions. We hope this NAWQA publication will provide you 

the needed insights and information to meet your needs, and 

thereby foster increased awareness and involvement in the 

protection and restoration of our Nation's waters.

The NAWQA Program recognizes that a national 

assessment by a single program cannot address all waterresource issues of interest. External coordination at all levels is critical for a fully integrated understanding of watersheds and for cost-effective management, regulation, and 

conservation of our Nation's water resources. The Program, 

therefore, depends extensively on the advice, cooperation, 

and information from other Federal, State, interstate, Tribal, 

and local agencies, non-government organizations, industry, 

academia, and other stakeholder groups. The assistance and 

suggestions of all are greatly appreciated.

Ih.

Robert M. Hirsch 

Associate Director for Water

CONTENTS

Abstract ....................................................................................... 1

Introduction .................................................................................... 1

Calculation of Pesticide Loads...................................................................... 1

References cited................................................................................. 2

TABLES

1. List of pesticides included in the study ......................................

2. Summary of data from the scientific literature, the National Water-Quality Assessment 

(NAWQA) Program, and the National Stream-Quality Accounting Network 

(NASQAN) Program for the pesticides listed in table 1 .........................

Contents

Selected Data From Field Studies of 

Pesticide Runoff to Surface Waters

Paul D. Capel, Thomas A. Winterstein, and Steven J. Larson

ABSTRACT

Citations from the scientific literature for studies that quantified selected pesticides in field runoff 

or streams were obtained from two computerized bibliographic databases: Chemical Abstracts and 

AGRICOLA. Selected data were extracted from studies in field environments that lasted longer than a 

day and are summarized here. The data extracted from each article, if available, include pesticide information, environmental setting, year of study, and the mass of the pesticide in runoff as a percent of the 

mass applied. Data from two national studies of pesticides in surface waters done by the U.S. Geological 

Survey (National Water-Quality Assessment Program, 1992-1995, and National Stream-Quality 

Accounting Network, 1996-1998) also are summarized.

INTRODUCTION

Contamination of surface waters by pesticides is a topic of current national and international concern. One 

of the important sources of pesticides to surface waters is rain- or irrigation-induced runoff. The important 

processes that govern runoff were reviewed previously by Wauchope (1978), Weber and others (1980), Wauchope 

and Leonard (1980a,b), Leonard (1988,1990), and Willis and McDowell (1982). Leonard (1990), in his review 

identified four general factors that govern the extent of pesticide runoff: climate, soil, chemical properties, and 

management practices.

To facilitate current and future research on pesticides in surface waters, specifically for the U.S. Geological 

Survey's National Stream-Quality Accounting Network (NASQAN) program (Hooper and others, 1997), a search 

of the scientific literature for studies that quantified selected pesticides (see table 1 in back of report) in field 

runoff or streams was performed by means of two computerized bibliographic databases: Chemical Abstracts and 

AGRICOLA. This report summarizes data for the pesticides listed in table 1 (back of report). Only those data 

from published articles that contained information essential to the calculation of the pesticide mass in runoff as a 

percentage of the mass applied are included. The data extracted from each literature article, if available, include 

pesticide information, environmental setting (area, soil type, location, land use, and type of precipitation), year of 

study, and the mass of the pesticide in runoff as a percentage of the mass applied. The extracted data are 

summarized in table 2 (back of report). Furthermore, only the data from studies that were conducted in field 

environments and that lasted more than one day were included.

This report also summaries recent NAWQA (mostly 1992-1995) and NASQAN (1996-1998) data on the 

loads of pesticides in surface waters and the loads as a percentage of their estimated use. The concentration data 

are available elsewhere (National Water-Quality Assessment, 2000; Hooper and others, in press).

CALCULATION OF PESTICIDE LOADS

Pesticide loads for streams sampled in the NAWQA and NASQAN programs were calculated by summing 

estimated daily loads as described in Larson and others (1999). The daily loads were calculated by multiplying 

the daily stream discharge by the daily concentration. Stream discharge was measured daily, while pesticide 

concentrations were measured less frequently. Pesticide concentrations for days that were not sampled were

Calculation of Pesticide Loads 1
estimated by linear interpolation using concentrations measured on the closest preceding and following days in 

which pesticides were quantified. Only pesticides with use greater than 1 kilogram per square kilometer of total 

watershed area were included.

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activities: EPIC-PST: Transactions of the ASAE, v. 34, no. 4, p. 1683-1692. 

Sandroni, D., Tremolada, P., Notarianni, V., and Vighi, M., 1996, Presence of herbicides in drainage water from agricultural

fields treated with different agronomic inputs, in Del Re, A.A.M., Capri, E., Evans, S.P., and Trevisan, M. eds., The

environmental fate of xenobiotics: Proceedings of the X Symposium Pesticide Chemistry, September 30-October 2,

1996: Pavia, Italy, La Goliardica Pavese, p. 433-440. 

Sauer, T.J., and Daniel, T.C., 1987, Effect of tillage system on runoff losses of surface-applied pesticides: Soil Science

Society of America Journal, v. 51, no. 2, p. 410-415. 

Schottler, S.P., Eisenreich, S.J., and Capel, P.D., 1994, Atrazine, alachlor, and cyanazine in a large agricultural river system:

Environmental Science and Technology, v. 28, no. 6, p. 1079-1089. 

Shaw, D.R., Smith, C.A., and Hairston, J.E., 1992, Impact of rainfall and tillage systems on off-site herbicide movement:

Communications in Soil Science and Plant Analysis, v. 23, no. 15-16, p. 1843-1858. 

Sheets, T.J., Bradley, J.R., and Jackson, M.D., 1972, Contamination of surface and ground water with pesticides applied to

cotton: Raleigh, N.C., North Carolina State University, Water Resources Research Institute, Report 60, 63 p. 

Shipitalo, M.J., Edwards, W.M., and Owens, L.B., 1997, Herbicide losses in runoff from conservation-tilled watersheds in a

corn-soybean rotation: Soil Science Society of America Journal, v. 61, no. 1, p. 267-272. 

Smith, A.E., and Bridges, D.C., 1996, Potential movement of certain pesticides following application to golf courses, in

Meyer, M.T., and Thurman, E.M., eds., Herbicide metabolites in surface water and groundwater: American Chemical

Society Symposium series, v. 630, p. 163-177. 

Smith, S., Reagan, T.E., Flynn, J.L., and Willis, G.H., 1983, Azinphos-methyl and fenvalerate runoff loss from a sugarcaneinsect IPM system: Journal of Environmental Quality, v. 12, no. 4, p. 534-537.

References Cited
Smith, S., Jr., Schreiber, J.D., and Cullum, R.F., 1995, Upland soybean production: Surface and shallow groundwater quality

as affected by tillage and herbicide use: Transactions of the ASAE, v. 38, no. 4, p. 1061-1068. 

Southwick, L.M., Willis, G.H., Bengtson, R.L., and Lormand, T.J., 1990, Effect of subsurface drainage on runoff losses of

atrazine and metolachlor in southern Louisiana: Bulletin of Environmental Contamination and Toxicology, v. 45, no. 1,

p. 113-119. 

Southwick, L.M., Willis, G.H., Reagan, T.E., and Rodriguez, L.M., 1995, Residues ion runoff and on leaves of azinphosmethyl and esfenvalerate applied to sugarcane: Pest Management and Sampling, v. 24, p. 1013-1017. 

Spencer, W.F., and Cliath, M.M., 1991, Pesticide losses in surface runoff from irrigated fields: Environmental Science

Research, v. 42, p. 277-89. 

Squillace, P.J., and Thurman, E.M., 1992, Herbicide transport in rivers: Importance of hydrology and geochemistry in

nonpoint-source contamination: Environmental Science and Technology, v. 26, p. 538-544. 

Sudo, M., and Kunimatsu, T., 1992, Characteristics of pesticides runoff from golf links: Water Science and Technology, v. 25,

no. 11, p. 85-92. 

Tan, C.S., Drury, C.F., Gaynor, J.D., and Welacky, T.W., 1993, Integrated soil, crop and water management system to abate

herbicide and nitrate contamination of the Great Lakes: Water Science and Technology, v. 28, no. 3-5, p. 497-507. 

Triplett, G.B.J., Conner, B.J., and Edwards, W.M., 1978, Transport of atrazine and simazine in runoff from conventional and

no-tillage corn: Journal of Environmental Quality, v. 7, no. 1, p. 77-84. 

Wauchope, R.D., 1978, The pesticide content of surface water drainage from agricultural fields A Review: Journal of

Environmental Quality, v. 7, no. 4, p. 459-472 

Wauchope, R.D. and Leonard, R.A., 1980a, Maximum pesticide concentrations in agricultural runoff: A semiempirical

prediction formula, Journal of Environmental Quality, v. 9, p. 665-672. 

 1980b, Pesticide concentration, in Knisel, W.G., ed., CREAMS: A field scale model for chemical, runoff, and erosion

form agricultural management systems. U.S. Department of Agriculture, Science and Education Administration,

Conservation Research Report 26, p. 554-559. 

Wauchope, R.D., Williams, R.G., and Marti, L.R., 1990, Runoff of sulfometuron-methyl and cyanazine from small plots:

Effects of formulation and grass cover: Journal of Environmental Quality, v. 19, no. 1, p. 119-125. 

Wauchope, R.D., Dowler, C.C., Sumner, H.R., Truman, C., Johnson, A.W., Chandler, L.D., Gascho, G.J., Davis, J.G., and

Hook, J.E., 1993, Herbicide runoff measurements from small plots: How realistic?, in Brighton Crop Protection

Conference Weeds 1993: Farnham, U.K., British Crop Protection Council, v. 3, p. 1291-1298. 

Weber, J.B., Shea, P.J., and Strek, H.J., 1980, An evaluation of nonpoint sources of pesticide pollution in runoff, in Overcash,

M.R., and Davidson, J.M., eds., Environmental impact of nonpoint source pollution: Ann Arbor, Mich., Ann Arbor

Science, p. 69-98. 

Webster, E.P., and Shaw, D.R., 1996, Impact of vegetative filter strips on herbicide loss in runoff from soybean (Glycine

max): Weed Science, v. 44, no. 3, p. 662-671. 

Willis, G.H. and McDowell, L.L., 1982, Pesticide in agricultural runoff and their effects on downstream water quality:

Environmental Toxicology and Chemistry, v. 1, p. 267-279. 

Willis, G.H., McDowell, L.L., Murphree, C.E., Southwick, L.M., and Smith, S., Jr., 1983, Pesticide concentrations and

yields in runoff from silty soils in the lower Mississippi Valley: Journal of Agricultural and Food Chemistry, v. 31,

p. 1171-1177. 

Willis, G.H., Rogers, R.L., and Southwick, L.M., 1975, Losses of diuron, linuron, fenac, and trifluralin in surface drainage

water: Journal of Environmental Quality, v. 4, no. 3, p. 399-402. 

Wilson, C., Whitwell, T., and Riley, M.B., 1996, Detection and dissipation of isoxaben and trifluralin in containerized plant

nursery runoff water: Weed Science, v. 44, no. 3, p. 683-688. 

Wotzka, P.J., Lee, J., Capel, P., and Lin, M., 1994, Pesticide concentrations and fluxes in an urban watershed, in Pederson,

G.L., ed., Proceedings of the American Water Resources Association National Symposium on Water Quality: American

Water Resources Association, Technical Publication TPS-94-4, p. 135-145. 

Wu, T.L., 1980, Dissipation of the herbicides atrazine and alachlor in a Maryland corn field: Journal of Environmental

Quality, v. 9, no. 3, p. 459^65. 

Wu, T.L., Correll, D.L., and Remenapp, H.E.H., 1983, Herbicide runoff from experimental watersheds: Journal of

Environmental Quality, v. 12, no. 3, p. 330-336.

Selected Data From Field Studies of Pesticide Runoff to Surface Waters
Table 1. List of pesticides included in the study

Alachlor

Atrazine

Azinphos-methyl

Benfluralin

Butylate

Carbaryl

Carbofuran

Chlorpyrifos

Cyanazine

DCPA

Diazinon

Disulfoton

EPTC

Ethalfluralin

Ethoprop

Fonofos

Lindane

Linuron

Malathion

Metolachlor

Metribuzin

Molinate

Napropamide

Parathion

Pebulate

Pendimethalin

Permethrin

Phorate

Pronamide

Propachlor

Propanil

Propargite

Simazine

Terbacil

Terbufos

Thiobencarb

Triallate

Trifluralin

Table 1. List of Pesticides

Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1

[Studies are arranged in order of pesticide name, then watershed area. A "nd" reported under the columns "mass use in basin" and "annual load 

pound was not detected or not detected frequently enough to calculate an annual load. States are abbreviated by their postal codes. Soil typ

L, loam; LS, loamy sand; S, sand; SC, sandy clay; SL, sandy loam; Si, silt; SiC, silty clay; SiL, silt loam; SiS, silty sand; SCL, sandy clay lo

rain. COL R., Columbia River; Cr., creek; Do., ditto; ha, hectares; kg, kilgram; NA, information not available in the article or report; NAW

R., river; WY, water year. %, percent]

n>oa

ro

Summary ofD

i

Basin or 

field plot 

area (ha)

0.000557

0.000557

0.000557

0.001

0.001

0.001

0.002

0.002

0.002

0.002

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003 

0.003 

0.003 

0.003

0.003

Row 

crop 

area

<%)

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100 

100 

100 

100

100

State, 

country, or 

river basin

GA

GA

GA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA 

IA 

IA 

IA

IL

Watershed 

name or 

soil type

LS

LS

LS

SiS

SiS

SiS

SL

SL

SL

SL

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiS

SiS

SiS 

SiS 

SiS 

SiS

NA

Precipitation 

type

Mass use

Basin (kg)

ALACHLOR

sim 0.0016

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim 

sim 

sim 

sim

sim

0.0016

0.0016

0.0025

0.0025

0.0025

0.0038

0.0038

0.0038

0.0038

0.0067

0.0067

0..0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067 

0.0067 

0.0067 

0.0067

0.0098

Runoff or 

stream (kg)

0.000011

0.00001 1

0.00001 1

0.000012

0.0000043

0.0000010

0.00032

0.00017

0.00011

0.00004

0.00036

0.00036

0.00048

0.00043

0.00039

0.00018

0.00073

0.00033

0.00078

0.00046

0.00026

0.00040

0.00053

0.00078

0.00076 

0.00059 

0.00076 

0.00093

0.00022

Annual load 

as percent 

of use (%)

0.70

0.70

0.70

0.49

0.17

0.04

8.6

4.5

3.0

1.0

5.3

5.3

7.2

6.4

5.8

2.7

10.9

4.9

11.6

6.9

3.8

6.0

7.9

11.6

11.3 

8.8 

11.3 

13.8

2.2
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accounti

listed in table 1 Continued

:ted DataFrom

-n

sLa.

t/n

S

a. 55'

v>

s.

c?

s

o|

<D

3D 

C

O

S

vt

\

o

(D

s

s

3

Basin or 

field plot 

area (ha)

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.023

0.023

0.023

0.023

0.023

0.023

0.023

0.023

0.039

0.039

0.039

0.039

0.039

0.039

0.039

0.039

Row 

crop 

area

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

State, 

country, or 

river basin

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

MS

MS

MS

MS

MS

MS

MS

MS

MS

WI

WI

WI

WI

WI

WI

WI

WI

OH

OH

OH

OH

OH

OH

OH

OH

Watershed 

name or 

soil type

NA

NA

NA

NA

NA

NA

NA

NA

NA

SiL

SiL

SiL

SiL

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

Precipitation 

type

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

sim

sim

sim

sim

sim

sim

sim

sim

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

0.0098

0.0098

0.0098

0.0098

0.0098

0.0098

0.0098

0.0098

0.0098

0.010

0.010

0.010

0.010

0.040

0.040

0.040

0.040

0.04Q

0.040

0.040

0.040

0.040

0.064

0.064

0.064

0.064

0.064

0.064

0.064

0.064

0.086

0.086

0.11

0.11

0.086

0.086

0.11

0.11

Runoff or 

stream (kg)

0.00016

0.000088

0.000078

0.000078

0.00062

0.00011

0.00014

0.00010

0.00022

0.000091

0.00038

0.00044

0.00080

0.00097

0.000089

0.0001 1

0.000034

0.000023

0.0040

0.00014

nd

0.000044

0.00020

0.00017

0.00024

0.00021

0.0020

0.0014

0.0039

0.0032

.0.000031

0.0001 1

0.000068

0.000016

0.000013

0.00010

0.000048

0.000010

Annual load 

as percent 

of use (%)

1.6

0.90

0.80

0.80

6.3

1.1

1.4

1.0

2.2

0.90

3.8

4.4

7.9

2.4

0.22

0.28

0.09

0.06

10

0.36

nd

0.11

0.31

0.26

0.37

0.33

3.2

2.2

6.1

4.9

0.036

0.13

0.062

0.015

0.015

0.12

0.044

0.0090
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

03o-

<D

V)

B

3 

a>

o 

tt

5>

Basin or 

field plot 

area (ha)

0.04

0.04

0.04

0.04

0.04

0.04

0.1

0.1

0.1

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.55

0.55

0.55

0.55

0.59

0.59

0.59

0.59

0.68

0.68

0.68

0.68

0.79

0.79

0.79

0.79 

2.5 

2.5

2.5

2.5

5.0

Row 

crop 

area

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100 

100 

100

100

100

100

State, 

country, or 

river basin

OH

OH

OH

OH

OH

OH

Ontario

Ontario

Ontario

MD

MD

MD

MD

MD

MD

MD

MD

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH 

GA 

GA

GA

GA

IA

Watershed 

name or 

soil type

SiC

SiC

SiC

SiC

SiC

SiC

CL

CL

CL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

fine Si

fine Si

fine Si

fine Si

fineL

fineL

fineL

fineL

fineL

fine L

fineL

fineL

fineL

fine L

fineL

fine L 

LS 

LS

LS

LS

SiL

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain 

rain 

rain

rain

rain

rain

Mass use

Basin (kg)

0.11

0.088

0.11

0.11

0.088

0.11

0.25

0.25

0.25

0.54

0.54

0.54

0.54

0.54

0.54

0.54

0.54

1.8

1.8

1.2

1.8

2.0

2.0

1.3

2.0

2.3

1.5

1.5

2.3

2.7

2.7

1.8

1.8 

8.6 

8.6

8.6

8.6

11

Runoff or 

stream (kg)

0.000032

0.00012

0.000070

0.000013

0.00011

0.000049

0.00085

0.00045

0.0014

0.0026

0.0031

0.00081

0.0015

0.0012

0.0013

0.00081

0.0013

nd

0.000018

0.0027

nd

nd

0.000020

0.0030

0.00020

nd

nd

0.000061

nd

0.0013

0.00027

0.0034

0.00088 

0.052 

0.0075

0.032

0.18

0.054

Annual load 

as percent 

of use (%)

0.029

0.13

0.062

0.012

0.12

0.044

0.34

0.18

0.54

0.48

0.57

0.15

0.28

0.22

0.24

0.15

0.24

nd

0.0010

0.22

nd

nd

0.0010

0.23

0.010

nd

nd

0.0040

nd

0.050

0.010

0.19

0.050 

0.61 

0.088

0.38

2.1

0.48

. 
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accountin

listed in table 1 Continued

:ted DataFrom

TJ

sLa.

S

a. CD'

CO

 o

CD

a

CD

30

O

5

CO

1

n

CD

0) 

CD

3

Basin or 

field plot 

area (ha)

5.6

6.4

10.4

16.4

16.4

16.4

35.0

35.0

57.5

2,700

3,327

3,327

3,500

3,700

3,900

4,400

5,055

11,600

11,600

13,300

13,300

14,100

14,100

14,600

14,600

14,600

15,500

16,100

24,600

24,600

24,600

24,700

24,700

27,300

 36,400

42,000

42,000

45,700

Row 

crop 

area

100

100

100

100

100

100

100

100

0

35

85

85

18

21

46

40

75

28

28

47

47

49

49

55

87

87

19

30

76

76

76

49

49

'24

63

30

30

25

State, 

country, or 

river basin

IA

IA

MD

MD

MD

MD

MO

MO

MN

CA

NE

NE

NC

VA

OR

NC

IA

PA

PA

WI

WI

PA

PA

WA

IN

IN

NY

GA

IN

IN

IN

WI

WI

GA

NE

GA

GA

MD

Watershed 

name or 

soil type

SiL

SiL

L

NA

NA

NA

Claypan

Claypan

Lake Harriet

Orestimba Cr.

Recharge Lake (SL)

Recharge Lake (SL)

Devils Cradle Cr.

Muddy Cr.

Zollner Cr.

Pete Mitchell Swamp

Four-mile Cr. (SL)

East Mahantango Cr.

East Mahantango Cr.

North Branch Milwaukee R.

North Branch Milwaukee R.

Mill Cr.

Mill Cr.

Crab Cr. Lateral

Kessinger Ditch

Kessinger Ditch

Canajoharie Cr.

LimeCr.

Sugar Cr.

Sugar Cr.

Sugar Cr.

DuckCr.

Duck Cr.

Aycocks Cr.

Prairie Cr.

Tucsawhatchee Cr.

Tucsawhatchee Cr.

Monocacy R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

13

14

24

38

26

28

98

98

0.049

30

. 7,785

7,785

97

450

150

311

11,323

493

493

1,035

1,035

1,184

1,184

453

2,122

2,122

730

419

3,497

3,497

3,497

1,887

1,887

642

5,082

768

768

1,750

Runoff or 

stream (kg)

0.060

0.039

0.048

0.003

0.0010

0.028

0.25

1.58

0.00078

0.43

10

6.2

0.23

0.13

0.29

1.1

11

1.6

1.7

0.61

0.042

0.58

. 0.49

0.14

8.3

18

rid

0.042

33

6.0

9.7

20

0.45

0.51

5.2

0.0033

nd

3.9

Annual load 

as percent 

of use (%)

0.48

0.27

0.20

0.0080

0.0040

0.10

0.25

1.6

1.6

1.4

0.13

0.080

0.24

0.029

0.20

0.35

0.10

0.32

0.34

0.059

0.0040

0.049

0.041

0.030

0.39

0.87

nd

0.010

0.93

0.17

0.28

1.0

0.024

0.079

0.10

0.00043

nd

0.22
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

= 

oa

ry

e

to

^

O 

o>

S»

Basin or 

field plot 

area (ha)

47,072

62,300

76,200

93,542

95,500

126,100

143,000

147,300

177,400

177,400

177,400

177,400

180,400

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

269,900

269,900

269,900

269,900

269,900

269,900

269,900

269,900

312,000

324,000

324,000

324,000

324,000

324,000

324,000

Row 

crop 

area

51

12

70

68

22

83

15

26

26

26

26

37

4

4

4

4

4

4

4

4

4

4

67

67

67

67

67

67

67

67

66

80

80

80

80

80

80

State, 

country, or 

river basin

Ontario

ID

NE

Greece

NE

OR

IL

CO

OH

OH

OH

OH

WI

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

MI

MI

MI

MI

MI

MI

MI

MI

NB

OH

OH

OH

OH

OH

OH

Watershed 

name or 

soil type

average of 1 1 rivers (C, L, S)

Rock Cr.

Shell Cr.

C, SC, SiCL

Maple Cr.

Pudding R.

Sangamon R.

Lonetree Cr.

Grand R.

Grand R.

Grand R.

Grand R.

Milwaukee R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

West Fork of the Big Blue R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Precipitation 

type

rain

rain

rain

irrigation

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

_ . Runoff or 

Basin (kg) . ... . a stream (kg)

2,755

946

11,811

18,319

14,044

2,421

51,000

5,210

840

840

840

840

11,169

5,660

5,660

5,660

5,660

5,660

5,660

5,660

5,660

5,660

5,660

51,620

51,620

51,620

51,620

51,620

51,620

51,620

51,620

79,000

96,050

96,050

96,050

96,050

96,050

96,050

0.26

0.086

29

861

89

11

168

6.5

nd

nd

17

2.3

41

21

20

6.8

153

13

0.50

nd

45

9.4

0.10

222

278

89

339

121

12

90

38

687

472

548

532

855

490

22

Annual load 

as percent 

of use (%)

0.0096

0.0091

0.24

4.7

0.63

0.47

0.33

0.12

nd

nd

2.0

0.27

0.37

0.38

0.36

0.12

2.7

0.23

0.0088

nd

0.80

0.17

0.0018

0.43

0.54

0.17

0.66

0.23

0.023

0.17

0.074

0.87

0.49

0.57

0.55

0.89

0.51

0.023
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

ted DataFrom

CD"

a.

V)

e

5'

2.

(D

o'

ai

CD

39

3

O 

3!

S

V)

1

n

(D

$

|

M

Basin or 

field plot 

area (ha)

324,000

324,000

324,000

324,000

324,000

575,400

638,000

788,000

788,000

911,300

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

1,639,500

1,713,100

2,929,100

2,929,100

2,929,100

2,929,100

3,858,500

3,858,500

3,858,500

6,926,700

7,571,606

7,571,606

7,571,606

9,208,600

22,110,800

22,110,830

22,110,830

22,110,830

Row 

crop 

area

80

80

80

80

80

17

52

8

8

9

76

76

76

76

76

76

76

76

76

76

76

56

44

44

44

44

80

80

80

61

58

58

58

51

21

17

17

17

State, 

country, or 

river basin

OH

OH

OH

OH

OH

NC

WA

VA

ND

NY

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

MN/ND

IN

IN

IN

IN

MN

MN

MN

IL

OHR.

OHR.

OHR.

MN/ND

MOR.

MOR.

MOR.

MOR.

Watershed 

name or 

soil type

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Tar R.

Palouse R.

Shenandoah R.

Shenandoah R.

Mohawk

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Red R. of the North above Fargo

White R.

White R.

White R.

White R.

MNR.

MNR.

MNR.

ILR.

Wabash R.

Wabash R.

Wabash R.

Red R. of the North at Pembina

Platte R.

Platte R.

Platte R.

Platte R.

Precipitation 

type

ram

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

..... Runoff or Basin (kg) _ ., . 

a stream (kg)

96,050

96,050

96,050

96,050

96,050

12,886

6,953

30,256

30,256

19,107

503,580

503,580

503,580

503,580

503,580

503,580

503,580

503,580

503,580

503,580

503,580

64,476

850,000

244,105

244,105

244,105

1,400,000

1,500,000

1,500,000

2,000,000

780,860

780,860

780,860

126,765

1,000,000

672,635

672,635

672,635

1,192

1,196

262

241

758

8.2

0.32

6.7

16

12

2,305

4,567

357

2,902

1,428

63

3,422

4,495

3,050

924

3,929

9.5

1,275

1,258

1,625

1,012

2,800

600

3,000

9,200

nd

2,720

1,840

45

3,100

3,041

342

1,817

Annual load 

as percent 

of use (%)

1.2

1.2

0.27

' 0.25

0.79

0.064

0:0046

0.022

0.052

0.063

0.46

0.91

0.071

0.58

0.28

0.013

0.68

0.89

0.61

0.18

0.78

0.015

0.15

0.52

0.67

0.41

0.20

0.040

0.20

0.46

nd

0.35

0.24

0.035

0.31

0.45

0.051

0.27
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

s1

aa

C/»

e

a>

 3

a 

a>

S>

Basin or 

field plot 

area (ha)

22,149,600

22,170,400

22,170,400

22,170,400

22,170,400

25,123,000

25,123,000

25,123,000

40,996,592

40,996,592

40,996,592

44,366,700

44,366,700

44,366,700

52,602,900

52,602,900

52,602,900

52,602,900

83,605,200

83,605,200

83,605,200

135,767,800

135,767,800

135,767,800

135,767,800

184,718,800

184,718,800

184,718,800

184,718,800

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

Row 

crop 

area

17

24

32

32

32

8

8

8

17

17

17

31

31

31

16

9

9

9

6

6

6

10

7

7

7

18

8

8

8

15

15

15

15

15

15

15

15

15

State, 

country, or 

river basin

MOR.

MSR.

MSR.

MSR.

MSR.

OHR.

OHR.

OHR.

MSR.

MSR.

MSR.

MSR.

MSR.

MS

OHR.

OHR.

OHR.

OHR.

MOR.

MOR.

MOR.

MOR.

MOR.

MOR.

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MS

MSR.

MSR.

MSR.

MSR.

Watershed 

name or 

soil type

Plane R.

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

OH R. at Cannelton Dam, KY

OH R. at Cannelton Dam, KY

OH R. at Cannelton Dam, KY

AR. R. below Little Rock, AR

AR.R. below Little Rock, AR

AR R. below Little Rock, AR

MS R. at Grafton, IL

MS R. at Grafton, IL

MS R. at Grafton, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

MO R. at Omaha, NE

MO R. at Omaha, NE

MO R. at Omaha, NE

MO R. at Omaha, NE

MO at Hermann, MO

MO at Hermann, MO

MO at Hermann, MO

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

Precipitation 

type

ram

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

667,685

2,100,000

787,171

787,171

787,171

577,418

577,418

577,418

426,221

426,221

426,221

2,309,091

2,309,091

2,309,091

4,700,000

1,739,033

1,739,033

1,739,033

795,154

795,154

795,154

4,700,000

2,753,305

2,753,305

2,753,305

12,000,000

5,285,034

5,285,034

5,285,034

19,000,000

19,000,000

19,000,000

19,000,000

19,000,000

19,000,000

19,000,000

19,000,000

19,000,000

Runoff or 

stream (kg)

1,411

6,300

659

499

289

1,958

2,122

880

71

149

69

nd

2,674

3,156

5,640

4,567

11,943

5,035

563

259

158

7,520

4,769

3,029

3,044

32,400

8,367

3,392

7,278

32,300

3,990

129,200

15,000

49,000

23,000

10,000

7,000

4,000

Annual load 

as percent 

of use (%)

0.21

0.30

0.084

0.063

0.037

0.34

0.37

0.15

0.017

0.035

0.016

nd

0.12

0.14

0.12

0.26

0.69

0.29

0.071

0.033

0.020

0.16

0.17

0.11

0.11

0.27

0.16

0.064

0.14

0.17

0.021

0.68

0.079

0.26

0.12

0.052

0.037

0.021
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

Basin or 

field plot 

area (ha)

315,621,544

315,621,544

315,621,544

Row 

crop 

area

(%)

7

7

7

State, 

country, or 

river basin

MSR.

MSR.

MSR.

Watershed 

name or 

soil type

MS and Atchafalaya R.

MS and Atchafalaya R.

MS and Atchafalaya R.

Precipitation 

type

rain

rain

rain

Mass use

Basin (kg)

8,174,009

8,174,009

8,174,009

Runoff or 

stream (kg)

19,463

19,513

10,514

Annual load 

as percent 

of use (%)

0.24

0.24

0.13

ATRAZINE

0.000023

0.000023

0.000557

0.000557

0.000557

0.000557

0.0009

0.001

0.001

0.001

0.002

0.002

0.002

0.002

0.002

0.0022

0.0022

0.004

0.004

0.004

0.004

0.004

0.004

0.004

0.004

0.004

0.004

0.004

0.004

0.004

0.004

0.004

0.004

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

OR

OR

GA

GA

GA

GA

VA

IA

IA

IA

IA

IA

IA

IA

TX

VA

VA

PA

PA

PA

PA

PA

PA

PA

PA

PA

PA

PA

PA

PA

PA

PA

PA

SiL

SiL

LS

LS

LS

LS

SiL

SiS

SiS

SiS

SL

SL

SL

SL

C

SiL

SiL

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

sim

sim

sim

sim

sim

sim

rain

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

rain

rain

rain

rain

rain

rain

rain

rain

NA

NA

NA

NA

NA

NA

NA

NA

0.000083

0.000083

0.0010

0.0010

0.0010

0.0010

0.0041

0.0025

0.0025

0.0025

0.0038

0.0038

0.0038

0.0038

0.0040

0.0099

0.0099

0.0088

0.018

0.0088

0.018

0.0088

0.018

0.0088

0.018

0.0024

0.0044

0.0088

0.018

0.027

0.036

0.0024

0.0044

0.00000008

0.0000014

0.000019

0.000025

0.000010

0.000005

0.00016

0.000011

0.0000028

0.0000010

0.00022

0.00013

0.00010

0.000037

0.000080

0.00017

0.0000047

0.00031

0.00020

0.000083

0.00015

0.000029

0.000070

0.000029

0.000027

0.000042

0.00016

0.00022

0.00039

0.00062

0.0011

nd

0.00000026

0.10

1.70

1.80

2.40

1.00

0.50

3.85

0.45

0.11

0.040

5.710

3.370

2.540

0.970

2.000

1.720

0.047

3.530

1.130

0.940

0.850

0.330

0.390

0.330

0.150

1.730

3.670

2.500

2.170

2.3

3.0

nd

0.0060
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acc

listed in table 1 Continued

to

)le 2:Summary of

o

0)

S

Basin or 

field plot 

area (ha)

0.004 

0.004

0.004

0.004

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0125

0.02

0.02

0.02

0.02

0.02

0.02

0.02

0.02

0.02

0.02

0.023

0.023

0.023

0.023 

0.023 

0.023 

0,023

oto

0.025 

0.039

0.039

Row 

crop 

area

100 

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100 

100 

100 

100 

100

100 

100

100

State, 

country, or 

river basin

PA 

PA

PA

PA

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

France

KY

KY

KY

KY

KY

KY

GA

GA

GA

GA

WI

WI

WI

WI 

WI 

WI 

WI 

WI

France 

OH

OH

Watershed 

name or 

soil type

SiC 

SiC

SiC

SiC

SCL

SCL

SCL

SCL

SCL

SCL

SCL

SCL

SCL

SCL

SCL

SCL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

LS

LS

LS

LS

SiL

SiL

SiL

SiL 

SiL 

SiL 

SiL 

SiL

SiL 

SiC

SiC

Precipitation 

type

NA 

NA

NA

NA

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

sim

sim

sim

sim 

sim 

sim 

sim 

sim

rain 

rain

rain

Mass use

Basin (kg)

0.0088 

0.018

0.027

0.036

0.014

0.014

0.014

0.014

0.014

0.014

0.014

0.014

0.014

0.014

0.014

0.014

0.016

0.022

0.022

0.022

0.022

0.022

0.022

0.045

0.090

0.045

0.090

0.064

0.064

0.064

0.064 

0.064 

0.064 

0.064 

0.064

0.031 

0.086

0.098

Runoff or 

stream (kg)

0.0000018 

0.0000011

0.0000062

0.0000047

0.00007

0.00023

0.00024

0.00042

0.00031

0.0013

0.00030

0.00066

0.00024

0.0011

0.00027

0.00035

0.0000027

0.0000043

0.000094

0.000019

0.00032

0.00002

0.00030

0.00013

0.00030

0.00050

0.0014

0.00023

0.00019

0.00026

0.00026 

0.0030 

0.0021 

0.0058 

0.0049

0.00020 

0.00039

0.00017

Annual load 

as percent 

of use (%)

0.021 

0.0060

0.023

0.013

0.50

1.6

1.7

3.0

2.2

9.4

2.1

4.7

1.7

8.1

1.9

2^5

0.017

0.019

0.42

0.084

1.4

0.074

1.3

0.28

0.34

1.1

1.6

0.36

0.29

0.40

0.40 

4.6 

3.3 

9.1

7.7

0.63 

0.45

0.17
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

s

S4

Basin or 

field plot 

area (ha)

0.039 

0.039

0.039

0.039

0.039

0.039

0.04

0.04

0.04

0.04 

0.04

0.04

0.04

0.04

0.04

0.049

0.049

0.062 

0.062

0.1 

0.1

0.1

0.1

0.107 

0.26 

0.26

0.26

0.26

0.26

0.26

0.26

0.26

0.26

0.26

0.3 

0.3

0.3

0.3

Row 

crop 

area

100 

100

100

100

100

100

100

100

100

100 

100

100

100

100

100

100

100

100 

100

100 

100

100

100

100 

100 

100

100

100

100

100

100

100

100

100

100 

100

100

100

State, 

country, or 

river basin

OH 

OH

OH

OH

OH

OH

OK

OK

OK

OH 

OH

OH

OH

OH

OH

VA

VA

GA 

GA

Ontario 

Ontario

Ontario

Ontario

Ontario 

MD 

MD

MD

PA

PA

PA

PA

PA

PA

PA

MD 

MD

MD

MD

Watershed 

name or 

soil type

SiC 

SiC

SiC

SiC

SiC

SiC

SiCL

SiCL

SiCL

SiC 

SiC

SiC

SiC

SiC

SiC

SL

SL

SL 

SL

CL 

CL

CL

CL

CL 

L 

L

L

SiCL

SiCL

SiCL

SiCL

SiCL

SiCL

SiCL

SiL 

SiL

SiL

SiL

Precipitation 

type

rain 

rain

rain

rain

rain

rain

sim

sim

sim

rain 

rain

rain

rain

rain

rain

rain, sim

rain, sim

sim 

sim

rain 

rain

rain

rain

rain 

rain 

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain 

rain

rain

rain

Mass use

Basin (kg)

0.086 

0.086

0.086

0.098

0.086

0.086

0.022

0.022

0.022

0.088 

0.088

0.088

0.088

0.088

0.088

0.047

0.045

0.12 

0.12

0.18 

0.18

0.18

0.11

0.12 

0.57 

0.57

0.57

0.44

0.44

0.44

0.44

0.44

0.44

0.44

0.40 

0.40

0.40

0.40

Runoff or 

stream (kg)

0.00013 

0.000094

0.000051

0.00029

0.000094

0.000071

0.0024

0.0017

0.0018

0.000053 

0.00017

0.00013

0.000017

0.00030

0.00010

0.00033

0.00067

0.0021 

0.0025

0.0015 

0.0016

0.011

0.00064

0.0021 

0.0063 

nd

nd

0.0016

0.0015

0.000088

nd

0.00044

nd

nd

0.0033 

0.0039

0.00084

0.0019

Annual load 

as percent 

of use (%)

0.15 

0.11

0.060

0.30

0.11

0.083

10.9

7.8

7.9

0.060 

0.19

0.15

0.019

0.34

0.11

0.70

1.5

1.8 

2.1

0.83 

0.90

6.3

0.58

1.8 

1.1 

nd

nd

0.36

0.33

0.020

nd

0.10

nd

nd

0.81 

0.97

0.21

0.47
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

Q)

IF

CO

e

0)

-3

a

01

0?

Basin or 

field plot 

area (ha)

0.3

0.3

0.3

0.3

0.37

.0.37

0.37

0.55

0.55

0.59

0.59

0.68

0.68

0.79

0.79

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1.1

1.1 

.1 

.1

.1

.1

.1

Row 

crop 

area

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100 

100 

100

100

100

100

State, 

country, or 

river basin

MD

MD

MD

MD

MD

MD

MD

OH

OH

OH

OH

OH

OH

OH

OH

Ontario

Ontario

Ontario

Ontario

IA

IA

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

VT

VT 

VT 

VT

VT

VT

VT

Watershed 

name or 

soil type

SiL

SiL

SiL

SiL

L

L

L

fine Si

fine Si

fineL

fineL

fineL

fineL

fineL

fineL

CL

CL

CL

CL

SiL

SiL

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

coarse L

coarse L 

L 

L

L

L

L

Precipitation 

type

ram

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain 

rain 

rain

rain

rain

rain

Mass use

Basin (kg)

0.40

0.40

0.40

0.40

0.81

0.81

0.81

1.2

1.2

1.3

1.3

1.5

1.5

1.8

1.8

1.7

1.7

1.7

1.7

3.4

3.4

3.4

2.2

1.7.

1.1

3.9

1.7

1.1

1.1

2.2

1.8

1.6

1.2 

0.26 

0.19

0.19

0.13

0.13

Runoff or 

stream (kg)

0.0056

0.0061

0.0023

0.0036

0.013

0.000081

0.00013

0.000062

0.011

0.00026

0.0011

0.0000091

0.0000091

0.0057

0.019

0.018

0.0010

0.051

0.013

0.181

0.534

nd

0.00090

0.029

0.064

0.033

nd

0.00034

0.00022

0.0018

0.00090

0.028

0.0037 

0.0046 

0.040

0.00057

nd

nd

Annual load 

as percent 

of use (%)

1.4

1.5

0.56

0.90

1.6

0.010

0.016

0.0050

0.91

0.020

0.080

0.00060

0.00060

0.32

1.1

1.1

0.060

3.0

0.76

5.4

15.9

nd

0.040

1.7

5.7

0.84

nd

0.030

0.020

0.080

0.050

1.8

0.30 

1.8 

20.7

0.30

nd

nd
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

ted DataFrom

2*

s!

a.

~

Q. 5'

CO

2. -

 n

(D

2.

a!

CO

3D

a

S

V)

1

n

(D

1

35

Basin or 

field plot 

area (ha)

1.3

1.3

1.3

1.3

1.3

1.3

1.38

1.38

1.38

1.4

1.4

1.4

1.5

1.5

1.5

1.6

2.5

2.5

2.5

2.5

2.7

3

3

4

4

10.4

16.4

16.4

16.4

18

35

35

35.6

57.5

1,211

1,211

1,860

1,860

Row 

crop 

area

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

NA

100

100

100

0

60

60

19

19

State, 

country, or 

river basin

GA

GA

GA

GA

GA

GA

GA

GA

GA

GA

GA

GA

VT

VT

VT

LA

GA

GA

GA

GA

OH

LA

LA

LA

LA

MD

MD

MD

MD

TN

MO

MO

MO

MN

MO

MO

Ontario

Ontario

Watershed 

name or 

soil type

SL

SL

SL

SL, SCL

SL, SCL

SL, SCL

SL, SCL

SL, SCL

SL, SCL

SL

SL

SL

L

coarse L

coarse L

CL

LS

LS

LS

LS

NA

CL

CL

CL

CL

L

NA

NA

NA

NA

Claypan

Claypan

loess, claypan

Lake Harrriet

Goodwater Cr. (loess, claypan)

Goodwater Cr. (loess, claypan)

Canagagigue Cr. (L)

Canagagigue Cr. (L)

Precipitation 

type

ram

'rain

rain

NA

NA

NA

NA

NA

NA

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

NA

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

4.4

5.0

2.0

4.4

5.0

2.0

4.6

5.6

2.0

4.7

5.6

2.0

0.34

2.1

1.7

2.6

8.6

8.6

8.6

8.6

3.0

4.9

4.9

6.5

6.5

18

28

16

16

15

78

67

78

0.088

127

135

700

700

Runoff or 

stream (kg)

0.083

0.010

0.014

0.083

0.0094

0.014

0.039

0.011

0.0052

0.038

0.01 1

0.0061

0.0054

0.034

0.25

0.076

0.22

0.022

0.18

0.87

0.14

0.16

0.068

0.091

0.21

0.18

0.10

0.030

0.023

0.22

0.67

1.6

0.60

0.0023

9.0

23

3.0

4.8

Annual load 

as percent 

of use (%)

1.9

0.20

0.70

1.9

0.19

0.70

0.84

0.19

0.26

0.80

0.20

0.30

1.6

1.6

14.9

2.9

2.6

0.26

2.1

10.2

4.7

3.2

1.4

1.4

3.2

1.0

0.36

0.18

0.14

1.5

0.85

2.4

0.76

2.6

7.1

16.9

0.43

0.68
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acc

listed in table 1 Continued

= 

«y

9

fO 

CO

e

0)

-3 

o^

o

Q>

&

Basin or 

field plot 

area (ha)

1,990

1,990

2,383

2,383

2,547

2,547

2,547

2,547

2,750

3,000

3,000

3,025

3,025

3,147

3,147

3,327

3,327

3,470

3,470

3,700

3,817

3,817

3,817

3,817

3,900

4,400

4,504

4,504

5,080

5,080

5,130

5,130

5,130

5,130

5,472

5,472

5,645

5,645

Row 

crop 

area

(%)

23

23

11

11

85

85

85

85

46

42

42

16

16

60

60

85

85

66

66

21

85

85

85

85

46

40

10

10

23

23

85

85

85

85

12

12

10

10

State, 

country, or 

river basin

Ontario

Ontario

Ontario

Ontario

1A

IA

IA

1A

MD

Ontario

Ontario

Ontario

Ontario

MO

MO

NE

NE

Ontario

Ontario

VA

IA

IA

IA

IA

OR

NC

Ontario

Ontario

Ontario

Ontario

IA

IA

IA

IA

Ontario

Ontario

Ontario

Ontario

Watershed 

name or 

soil type

Hillman Cr. (S)

Hillman Cr. (S)

Salt Cr. (C)

Salt Cr. (C)

NA

NA

NA

NA

Wye R. (Si)

Holiday Cr. (L)

Holiday Cr. (L)

North Cr. (C)

North Cr. (C)

Goodwater Cr. (loess, claypan)

Goodwater Cr. (loess, claypan)

Recharge Lake (SL)

Recharge Lake (SL)

Nissouri Cr. (L, SiL)

Nissouri Cr. (L, SiL)

Muddy Cr.

NA

NA

NA

NA

Zollner Cr.

Pete Mitchell Swamp

Mill Cr. (L)

Mill Cr. (L)

Big Cr. (C)

BigCr.(C)

NA

NA

NA

NA

Upper Maitland R. (L)

Upper Maitland R. (L)

Chelter Valley Cr. (S)

Chelter Valley Cr.(S)

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

572

572

303

303

550

360

390

450

4,813

1,972

1,972

504

504

763

809

4,000

4,000

3,100

3,100

478

790

570

640

760

259

239

820

820

736

736

1,052

691

800

850

1,047

1,047

431

431

Runoff or 

stream (kg)

1.1

1.3

nd

0.48

1.5

26

0.51

0.77

111

6.9

9.3

8.7

7.6

91

45

11

7.6

10

4.7

3.1

2.7

26

1.2

0.76

7.6

0.78

13

8.1

23

12

5.6

39

1.4

1.1

5.2

3.7

0.73

nd

Annual load 

as percent 

of use (%)

0.20

0.23

nd

0.16

0.28

7.3

0.13

0.17

2.3

0.35

0.47

1.7

1.5

11.9

5.6

0.28

0.19

0.33

0.15

0.65

0.34

4.5

0.18

0.10

2.9

0.33

1.6

0.99

3.1

1.6

0.53

5.6

0.18

0.13

0.50

0.35

0.17

nd
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

ited DataFrom

31

JL

0.

S

»'

M

2.

 o

(D

n'

o! 

o

3D 

C

a

o 

3!

CO

C

o> 

o

(D

g

iw

Basin or 

field plot 

area (ha)

6,200

6,200

6,250

6,250

6,510

6,510

6,510

7,250

7,250

7,913

7,913

10,900

10,900

11,600

11,600

11,900

11,900

13,300

13,300

13,400

14,100

14,100

14,500

14,500

14,600

14,600

14,600

15,200

15,200

15,500

16,000

16,100

20,600

20,600

24,600

24,600

24,600

24,600

Row 

crop 

area

31

31

35

35

NA

NA

NA

60

60

10

10

50

50

28

28

42

42

47

47

1

49

49

58

58

55

87

87

23

23

19

95

30

63

63

.76

76

76

76

State, 

country, or 

river basin

Ontario

Ontario

Quebec

Quebec

MN

MN

MN

MO

MO

Ontario

Ontario

Quebec

Quebec

PA

PA

Quebec

Quebec

WI

WI

AR

PA

PA

Quebec

Quebec

WA

IN

IN

Ontario

Ontario

NY

England

GA

Quebec

Quebec

IN

IN

IN

IN

Watershed 

name or 

soil type

Little Ausable R. (C)

Little Ausable R. (C)

Runnets R. (SL)

Runnets R. (SL)

Whitewater R.

Whitewater R.

Whitewater R.

Goodwater Cr. (loess, claypan)

Goodwater Cr. (loess, claypan)

Venison Cr. (S)

Venison Cr. (S)

St. Nazaire R. (SL)

St. Nazaire R. (SL)

East Mahantango Cr.

East Mahantango Cr.

La Barbue R. (SL, L, CL)

La Barbue R. (SL, L, CL)

North Branch Milwaukee R.

North Branch Milwaukee R.

Yocum Cr.

Mill Cr.

Mill Cr.

Chibouet R. (S, SL, C)

Chibouet R. (S, SL, C)

Crab Cr. Lateral

Kessinger Ditch

Kessinger Ditch

Payne R.

Payne R.

Canajoharie Cr.

R. Granta (C)

Lime Cr.

Salvail R. (SL, S)

Salvail R. (SL, S)

Sugar Cr.

Sugar Cr.

Sugar Cr.

Sugar Cr.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

2,132

2,132

15,625

15,625

470

470

470

1,757

1,864

1,353

1,353

27,250

27,250

1,385

1,385

29,750

29,750

1,448

1,448

167

3,866

3,866

36,250

36,250

354

7,372

7,372

499

526

927

7

1,701

51,500

51,500

11,787

11,787

11,787

11,787

Runoff or 

stream (kg)

34

37

281

16

4.7

0.80

0.80

128

199

6.0

4.9

790

82

7.6

15

357

89

3.0

0.33

0.069

11

15

508

109

0.84

119

126

0.65

0.68

9.0

0.11

1.4

721

155

263

1680

267

133

Annual load 

as percent 

of use (%)

1.6

1.7

1.8

0.10

1.0

0.17

0.17

7.3

10.7

0.44

0.36

2.9

0.30

0.55

1.1

1.2

0.30

0.21

0.023

0.041

0.28

0.38

1.4

0.30

0.24

1.6

1.7

0.13

0.13

0.97

1.5

0.083

1.4

0.30

2.2

14.3

2.3

1.1
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

51

oa

CO

e

3

01

-3

0

£

D>

Basin or 

field plot 

area (ha)

24,600

24,600

24,700

- 24,700

27,300

36,400

42,000

42,000

45,700

49,500

49,500

49,500

76,200

93,542

95,500

126,100

143,000

147,300

177,400

177,400

177,400

177,400

180,400

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

213,100

269,900

269,900

269,900

269,900

Row 

crop 

area

76

76

49

49

24

63

30

30

25

NA

NA

NA

70

NA

68

22

83

15

26

26

26

26

37

4

4

4

4

4

4

4

4

4

4

16

67

67

67

67

State, 

country, or 

river basin

IN

IN

WI

WI

GA

NE

GA

GA

MD

MN

MN

MN

NE

Greece

NE

OR

IL

CO

OH

OH

OH

OH

WI

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

TX

MI

MI

MI

MI

Watershed 

name or 

soil type

Sugar Cr.

Sugar Cr.

Duck Cr.

Duck Cr.

Aycocks Cr.

Prairie Cr.

Tucsawhatchee Cr.

Tucsawhatchee Cr.

Monocacy R.

East Fork of the Blue Earth R.

East Fork of the Blue Earth R.

East Fork of the Blue Earth R.

Shell Cr.

C, SC, SiCL

Maple Cr.

Pudding R.

Sangamon R.

Lonetree Cr.

Grand R.

Grand R.

Grand R.

Grand R.

Milwaukee R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Chambers Cr.

Raisin R.

Raisin R

Raisin R.

Raisin R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

irrigation

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

11,787

11,787

3,566

3,566

2,779

18,556

1,037

1,037

4,727

5,900

5,900

5,900

35,279

11,680

36,929

4,070

52,000

3,949

11,190

11,190

11,190

11,190

16,389

8,140

8,140

8,140

8,140

8,140

8,140

8,140

8,140

8,140

8,140

10,789

66,200

66,200

66,200

66,200

Runoff or 

stream (kg)

97

95

97

11

0.84

59

0.69

0.36

46

124

21

20

226

397

521

127

728

5.2

39

94

1.1

19

82

114

103

205

325

266

36

354

91

155

7.3

1,036

469

591

258

875

Annual load 

as percent 

of use (%)

0.82

0.80

2.7

0.31

0.030

0.32

0.067

0.034

0.98

2.1

0.36

0.34

0.64

3.4

1.4

3.1

1.4

0.13

0.35

0.84

0.0098

0.17

0.50

1.4

1.3

2.5

4.0

3.3

0.44

4.3

1.1

1.9

0.090

9.6

0.71

0.89

0.39

1.3
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

ted DataFrom

 n

5'

o.

B.

CO

CD

ao'

a!

(D

3D 

B 

3

O 

3!

S

C

3.

o> 

n

<D

f

3

Basin or 

field plot 

area (ha)

269,900

269,900

269,900

269,900

312,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

399,840

399,840

399,840

399,840

575,400

679,000

679,000

679,000

679,000

684,000

684,000

788,000

788,000

911,300

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

Row 

crop 

area

67

67

67

67

66

80

80

80

80

80

80

80

80

80

80

80

39

39

39

39

17

51

51

51

51

74

74

8

8

9

76

76

76

76

76

76

76

76

State, 

country, or 

river basin

MI

MI

MI

MI

NB

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

Ontario

Ontario

Ontario

Ontario

NC

Ontario

Ontario

Ontario

Ontario

Ontario

Ontario

VA

ND

NY

OH

OH

OH

OH

OH

OH

OH

OH

Watershed 

name or 

soil type

Raisin R.

Raisin R.

Raisin R.

Raisin R.

West Fork of the Big Blue R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Saugeen R. (S, L)

Saugeen R. (S, L)

Saugeen R. (S, L)

Saugeen R. (S, L)

TarR.

Grand R. (C, L, S)

Grand R. (C, L, S)

Grand R. (C, L, S)

Grand R. (C, L, S)

Thames R. (GL)

Thames R. (CL)

Shenandoah R.

Shenandoah R.

Mohawk R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

66,200

66,200

66,200

66,200

159,000

83,140

83,140

83,140

83,140

83,140

83,140

83,140

83,140

83,140

83,140

83,140

97,000

35,000

42,800

42,800

7,080

155,000

177,000

167,000

167,000

424,000

190,000

33,689

33,689

24,460

426,810

426,810

426,810

426,810

426,810

426,810

426,810

426,810

Runoff or 

stream (kg)

339

70

19

111

2,767

1,005

1,038

1,643

1,825

1,398

63

2,867

3,658 ^

571

258

1,526

582

525

364

325

36

4,340

1,062

1,670

1,202

9,328

1,520

309

306

169

3,377

5,558

3,147

7,254

4,875

271

8,573

16,629

Annual load 

as percent 

of use (%)

0.51

0.11

0.029

0.17

1.7

1.2

1.2

2.0

2.2

1.7

0.076

3.4

4.4

0.69

0.31

1.8

0.60

1.5

0.85

0.76

0.50

2.8

0.60

1.0

0.72

2.2

0.80

0.92

0.91

0.69

0.79

1.3

0.74

1.7

1.1

0.063

2.0

3.9
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Ac

listed in table 1 Continued

0)

5"

fs)

V)

e

B> "i

a

S

Basin or 

field plot 

area (ha)

1,639,500

1,639,500

1,639,500

1,713,100

2,025,121

2,929,100

2,929,100

2,929,100

2,929,100

2,929,100

2,929,100

2,929,100

3,858,500

3,858,500

3,858,500

6,926,700

7,571,606

7,571,606

7,571,606

10,445,470

10,445,470

10,445,470

16,058,000

16,058,000

16,058,000

22,110,800

22,110,830

22,110,830

22,110,830

22,149,600

22,170,400

22,170,400

22,170,400

22,170,400

25,123,000

25,123,000

25,123,000

40,996,592

Row 

crop 

area

76

76

76

56

81

44

44

44

44

44

44

44

80

80

80

61

58

58

58

5

5

5

6

6

6

21

17

17

17

17

24

32

32

32

8

8

8

17

State, 

country, or 

river basin

OH

OH

OH

ND

IA

IN

IN

IN

IN

IN

IN

IN

MN

MN

MN

IL

OHR.

OHR.

OHR.

OHR.

OHR.

OHR.

OHR.

OHR.

OHR.

MOR.

MOR.

MOR.

MOR.

MOR.

MSR.

MSR.

MSR.

MSR.

OHR.

OHR.

OHR.

MSR.

Watershed 

name or 

soil type

Maumee R.

Maumee R.

Maumee R.

Red R. of the North above Fargo

Cedar R.

White R.

White R.

White R.

White R.

White R.

White R.

White R.

MNR.

MNR.

MNR.

ILR.

Wabash R.

Wabash R.

Wabash R.

TNR.

TNR.

TNR.

OH R. at Greenup Dam, KY

OH R. at Greenup Dam, KY

OH R. at Greenup Dam, KY

Platte R.

Platte R.

Platte R.

Platte R.

Platte R.

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

OH R. at Cannelton Dam, KY

OH R. at Cannelton Dam, KY

OH R. at Cannelton Dam, KY

AR R. below Little Rock, AR

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

426,810

426,810

426,810

38,031

816,480

710,000

864,710

864,710

864,710

864,710

864,710

94,536

290,000

320,000

320,000

2,000,000

2,639,528

2,639,528

2,639,528

261,085

261,085

261,085

442,726

442,726

442,726

1,600,000

,765,998

,765,998

,765,998

,762,371

,500,000

,480,253

,480,253

,480,253

,479,153

,479,153

,479,153

,266,802

Runoff or 

stream (kg)

7,542

2,894

10,005

141

12,247

6,745

41,350

68,009

44,610

9,049

15,018

13,878

1,798

1,056

1,984

38,000

nd

88,041

106,664

nd

7,973

8,379

nd

15,617

8,519

13,440

94,923

6,142

19,466

15,252

14,400

10,635

7,337

8,789

49,228

62,636

37,052

4,448

Annual loa

as percen

of use (%)

1.8

0.68

2.3

0.37

1.5

0.95

4.8

7.9

5.2

1.0

1.7

14.7

0.62

0.33

0.62

1.9

nd

3.3

4.0

nd

3.1

3.2

nd

3.5

1.9

0.84

5.4

0.35

1.1

0.87

0.96

0.72

0.50

0.59

3.3

4.2

2.5

0.35
26 Selected DaaFrom

-n 

£.'

S

CD"

2.

 o

CD

o'

5i

CD

 33 

3

O

=c

c?

CO

1n

CD

a>

CD

a

Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

Basin or 

field plot 

area (ha)

40,996,592

40,996,592

44,366,700

44,366,700

44,366,700

52,602,900

52,602,900

52,602,900

52,602,900

83,605,200

83,605,200

83,605,200

135,767,800

135,767,800

135,767,800

135,767,800

184,718,800

184,718,800

184,718,800

184,718,800

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,544

315,621,544

315,621,544

Row 

crop 

area

17

17

31

31

31

16

9

9

9

6

6

6

10

7

7

7

18

8

8

8

15

15

15

15

15

15

15

15

15

7

7

7

State, 

country, or 

river basin

MSR.

MSR.

MSR.

MSR.

MSR.

OHR.

OHR.

OHR.

OHR.

MOR.

MOR.

MOR.

MOR.

MOR.

MOR.

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

Watershed 

name or 

soil type

AR R. below Little Rock, AR

AR R. below Little Rock, AR

MS R. at Grafton, IL

MS R. at Grafton, IL

MS R. at Grafton, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

MO R. at Omaha, NE

MO R. at Omaha, NE

MO R. at Omaha, NE

MO at Hermann, MO

MO at Hermann, MO

MO at Hermann, MO

MO at Hermann, MO

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS and Atchafalaya R.

MS and Atchafalaya R.

MS and Atchafalaya R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

1,266,802

1,266,802

7,057,136

7,057,136

7,057,136

4,800,000

5,325,651

5,325,651

5,325,651

1,195,544

1,195,544

1,195,544

6,300,000

6,769,425

6,769,425

6,769,425

13,000,000

14,416,096

14,416,096

14,416,096

21,000,000

21,000,000

21,000,000

21,000,000

21,000,000

21,000,000

21,000,000

21,000,000

21,000,000

22,232,508

22,232,508

22,232,508

Runoff or 

stream (kg)

13,724

12,080

nd

92,901

168,350

57,600

275,293

362,185

295,686

23,613

6,120

9,699

75,600

137,805

70,377

103,318

195,000

387,038

109,320

320,040

273,000

102,900

420,000

144,000

489,000

329,000

439,000

526,000

286,000

812,291

565,613

431,218

Annual load 

as percent 

of use (%)

1.1

0.95

nd

1.3

2.4

1.2

5.2

6.8

5.6

2.0

0.51

0.81

1.2

2.0

1.0

1.5

1.5

2.7

0.76

2.2

1.3

0.49

2.0

0.69

2.3

1.6

2.1

2.5

1.4

3.7

2.5

1.9

AZINPHOS-METHYL

0.0065

0.0065

0.0065

0.22

100

100

100

100

LA

LA

LA

LA

SiL

SiL

SiL

SiL

rain

rain

rain

rain

0.0055

0.0055

0.0055

0.18

0.000020

0.000041

0.00010

0.00094

0.37

0.75

1.8

0.52
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

Basin or 

field plot 

area (ha)

0.22

1

1

284

2,700

3,700

3,900

14,600

45,700

122,400

361,900

361,900

788,000

788,000

1,902,400

2,929,100

3,858,500

6,926,700

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

Row 

crop 

area

(%)

100

100

100

40

35

21

46

55

25

44

4

4

8

8

10

44

80

61

21

24

16

10

18

15

State, 

country, or 

river basin

LA

LA

LA

Italy

CA

VA

OR

WA

MD

CA

CA

CA

VA

ND

CA

IN

MN

IL

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

Watershed 

name or 

soil type

SiL

SiL

SiL

Cesena Basin

Orestimba Cr.

Muddy Cr.

Zollner Cr.

Crab Cr. Lateral

Monocacy R.

Salt Slough

Merced R.

Merced R.

Shenandoah R.

Shenandoah R.

San Joaquin R.

White R.

MNR.

ILR.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

0.18

0.84

0.84

14

372

49

49

816

3,142

5,825

4,771

4,771

8,455

8,455

44,265

72

60

1,200

180

4,300

14,000

150

11,000

150,000

Runoff or 

stream (kg)

0.00016

0.00067

0.0046

0.26

1.2

nd

0.083

1.0

0.038

nd

0.80

0.19

nd

nd

11

nd

nd

nd

nd

nd

nd

nd

nd

nd

Annual load 

as percent 

of use (%)

0.09

0.08

0.55

1.9

0.32

nd

0.17

0.12

0.0012

nd

0.017

0.0040

nd

nd

0.026

nd

nd

nd

nd

nd

nd

nd

nd

nd

BENFLURALIN

16,100

27,300

42,000

42,000

30

24

30

30

GA

GA

GA

GA

Lime Cr.

Aycocks Cr.

Tucsawhatchee Cr.

Tucsawhatchee Cr.

rain

rain

rain

rain

340

660

732

732

nd

nd

nd

nd

nd

nd

nd

nd

BUTYLATE

2,700

3,700

4,400

14,600

14,600

16,100

35

21

40

87

87

30

CA

VA

NC

IN

IN

GA

Orestimba Cr.

Muddy Cr.

Pete Mitchell Swamp

Kessinger Ditch

Kessing'er Ditch

Lime Cr.

rain

rain

rain

rain

rain

rain

92

74

71

1,322

1,322

342

0.0036

nd

0.000070

10

3

0.0012

0.0039

nd

0.00010

0.76

0.21

0.00035
28 Selected DaaFrom

z.

a.

vt

S

a. ~"

S

0*

o'

EL 

0

so

a

o

S

CO

1

n

0

$

£

3

Table 2. Summary of data from the scientific literature, the National Water-Qi 

listed in table 1 Continued

Basin or 

field plot 

area (ha)

24,600

24,600

24,600

27,300

36,400

76,200

95,500

122,400

2,929,100

2,929,100

2,929,100

2,929,100

3,858,500

6,926,700

7,571,606

7,571,606

7,571,606

22,110,800

22,170,400

25,123,000

25,123,000

25,123,000

44,366,700

44,366,700

44,366,700

52,602,900

52,602,900

52,602,900

52,602,900

135,767,800

184,718,800

315,621,500

Row 

crop 

area

76

76

76

24

63

70

68

44

44

44

44

44

80

61

58

58

58

21

24

8

8

8

31

31

31

16

9

9

9

10

18

15

State, 

country, or 

river basin

IN

IN

IN

GA

NE

NE

NE

CA

IN

IN

IN

IN

MN

IL

OHR.

OHR.

OHR.

MOR.

MSR.

OHR.

OHR.

OHR.

MSR.

MSR.

MSR.

OHR.

OHR.

OHR.

OHR.

MOR.

MSR.

MSR.

Watershed 

name or 

soil type

Sugar Cr.

Sugar Cr.

Sugar Cr.

Aycocks Cr.

Prairie Cr.

Shell Cr.

Maple Cr.

Salt Slough

White R.

White R.

White R.

White R.

MNR.

ILR.

Wabash R.

Wabash R.

Wabash R.

Platte R.

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Grafton, IL

MS R. at Grafton, IL

MS R. at Grafton, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL . MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

jality Assessmi

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rairi

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

ent Program, and the National Strea

Mass use

Basin (kg)

2,117

2,117

2,117

594

1,895

3,644

3,783

1,588

270,000

155,247

155,247

155,247

160,000

750,000

432,252

432,252

432,252

560,000

470,000

289,748

289,748

289,748

476,120

476,120

476,120

1,900,000

1,126,444

1,126,444

1,126,444

1,900,000

4,200,000

6,700,000

Runoff or 

stream (kg)

0.66

0.14

0.19

0.28

nd

0.063

0.0010

0:053

27

63

54

74

nd

150

nd

45

nd

nd

nd

655

nd

nd

nd

nd

nd

570

nd

201

nd

nd

nd

nd

im-Quality Acco

Annual load 

as percent 

of use (%)

0.031

0.0066

0.0089

0.047

nd

0.0017

0.000026

0.0033

0.010

0.040

0.035

0.047

nd

0.020

nd

0.010

nd

nd

nd

0.23

nd

nd

nd

nd

nd

0.030

nd

0.018

nd

nd

nd

nd

CARBARYL

0.79

2,700

3,500

3,900

100

35

18

46

OH

CA

NC

OR

SiL

Orestimba Cr.

Devils Cradle Cr.

Zollner Cr.

rain

rain

rain

rain

4.0

130

44

224

0.0056

0.097

0.0033

0.47

0.14

0.075

0.0075

0.21
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acc

listed in table 1 Continued

Basin or 

field plot 

area (ha)

4,400

14,600

14,600

14,600

16,100

27,300

42,000

42,000

45,700

76,200

95,500

122,400

126,100

575,400

2,929,100

2,929,100

3,858,500

6,926,700

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

Row 

crop 

area

(%)

40

55

87

87

30

24

30

30

25

70

68

44

22

17

44

44

80

61

21

24

16

10

18

15

State, 

country, or 

river basin

NC

WA

IN

IN

GA

GA

GA

GA

MD

NE

NE

CA

OR

NC

IN

IN

MN

IL

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

Watershed 

name or 

soil type

Pete Mitchell Swamp

Crab Cr. Lateral

Kessinger Ditch

Kessinger Ditch

Lime Cr.

Aycocks Cr.

Tucsawhatchee Cr.

Tucsawhatchee Cr.

Monocacy R.

Shell Cr.

Maple Cr.

Salt Slough

Pudding R.

TarR.

White R.

White R.

MNR.

ILR.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Herman, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

84

473

193

193

576

538

1,281

1,281

906

1,100

1,669

5,307

3,600

6,999

3,200

83,612

8,600

30,000

140,000

36,000

200,000

810,000

920,000

1,500,000

Runoff or 

stream (kg)

0.028

0.48

0.51

0.0025

0.031

0.090

0.39

0.29

1.2

1.6

0.0010

1.0

0.14

3.9

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

Annual load 

as percent 

of use (%)

0.033

0.10

0.27

0.0013

0.0054

0.017

0.030

0.022

0.13

0.15

0.000060

0.01945

0.004

0.056

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

CARBOFURAN

0.59

0.59

0.79

1.

1.

1.

1.

1.

1.

1.

1.46

24

100

100

100

100

100

100

100

100

100

100

100

100

OH

OH

OH

VT

VT

VT

VT

VT

VT

VT

VT

CA

SiL

SiL

SiL

L

L

L

L

L

L

L

L

rice paddy water

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

NA

3.2

1.8

3.3

0.30

0.20

0.20

0.24

0.24

0.24

0.24

0.40

26

0.028

0.035

0.016

0.00061

0.013

0.0016

nd

nd

0.0056

0.0017

0.0020

0.45

0.87

1.9

0.47

0.20

6.4

0.80

nd

nd

2.3

0.70

0.50

1.7
30 Selected DaaFromield Stui

^5' 

v>

TJ 

CD

a . o'

51

CD

so 

c

a

o 

35

to Surface

1CD

a

Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

Basin or 

field plot 

area (ha)

32 

34 

2,700

3,700 

4,400

11,600 

11,600

14,100

14,100

14,600

14,600 

14,600 

16,100

27,300 

36,400

65,800

76,200

95,500

122,400

229,400

2,929,100

3,858,500

6,926,700

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

Row 

crop 

area

100 

100

35

21 

40

28 

28

49

49

55

87 

87 

30

24 

63

66

70

68

44

22

44

80

61

21

24

16

10

18

15

State, 

country, or 

river basin

CA 

CA 

CA

VA 

NC

PA 

PA

PA

PA

WA

IN 

IN 

GA

GA

NE

ND

NE

NE

CA

ID

IN

MN

IL

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

Watershed 

name or 

soil type

rice paddy water 

rice paddy water 

Orestimba Cr.

Muddy Cr. 

Pete Mitchell Swamp

East Mahantango Cr. 

East Mahantango Cr.

Mill Cr.

Mill Cr.

Crab Cr. Lateral

Kessinger Ditch 

Kessinger Ditch 

Lime Cr.

Aycocks Cr. 

Prairie Cr.

Turtle R.

Shell Cr.

Maple Cr.

Salt Slough

Teton R.

White R.

MNR.

ILR.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

Precipitation 

type

NA 

NA 

rain

rain 

rain

rain 

rain

rain

rain

rain

rain 

rain 

rain

rain 

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

20 

41 

39

94 

100

119 

119

299

299

239

158 

158 

325

545 

808

827

1,562

1,674

2,784

2,666

42,000

11,000

95,000

190,000

53,000

370,000

650,000

930,000

1,800,000

Runoff or 

stream (kg)

2.3 

2.2 

0.11

0.00043 

nd

0.28 

0.81

nd

nd

0.0081

0.83 

4.4 

nd

nd 

1.5

0.48

13.0

3.7

1.2

nd

21

nd

361

171

148

296

585

1302

nd

Annual load 

as percent 

of use (%)

11.0 

5.4 

0.27

0.00046 

nd

0.23 

0.68

nd

nd

0.0034

0.53 

2.8 

ndnd' 

0.19

0.059

0.83

0.22

0.043

nd

0.050

nd

0.38

0.090

0.28

0.080

0.090

0.14

nd

CHLORPYRIFOS

0.003

0.012

0.023

0.023

0.023

0.023

0.023

100

100

100

100

100

100

100

GA

PA

WI

WI

WI

WI

WI

CL

C

SiL

SiL

SiL

SiL

SiL

sim

rain

sim

sim

sim

sim

sim

0.0034

0.013

0.064

0.064

0.064

0.064

0.064

0.0000034

nd

0.000077

0.000052

0.000052

0.000028

0.00015

0.10

nd

0.12

0.080

0.080

0.044

0.24
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acc

listed in table 1 Continued

3aCD

ro

V)

c

Q>

-3 

5^

o

0)

S

Basin or 

field plot 

area (ha)

0.023

0.023

0.023

1.2

1.2

.2

.2

.2

.2

.2

.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

60

60

60

60

60

2,700

3,500

3,700

3,900

4,400

11,600

11,600

13,300

13,300

14,100

14,100

14,600

14,600

14,600

15,500

Row 

crop 

area

(%)

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

35

18

21

46

40

28

28

47

47

49

49

55

87

87

19

State, 

country, or 

river basin

WI

WI

WI

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

CA

CA

CA

CA

CA

CA

NC

VA

OR

NC

PA

PA

WI

WI

PA

PA

WA

IN

IN

NY

Watershed 

name or 

soil type

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

fine textured

fine textured

fine textured

fine textured

fine textured

Orestimba Cr.

Devils Cradle Cr.

Muddy Cr.

Zollner Cr.

Pete Mitchell Swamp

East Mahantango Cr.

East Mahantango Cr.

North Branch Milwaukee R.

North Branch Milwaukee R.

Mill Cr.

Mill Cr.

Crab Cr. Lateral

Kessinger Ditch

Kessinger Ditch

Canajoharie Cr.

Precipitation 

type

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

irrigation

irrigation

irrigation

irrigation

irrigation

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

0.064

0.064

0.064

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

101

42

146

58

173

580

200

91

380

540

237

237

341

341

766

766

888

289

289

573

Runoff or 

stream (kg)

0.00021

0.00019

0.000084

0.0013

0.000026

0.0037

0.0013

0.0013

0.001 1

nd

nd

0.0098

0.025

0.0066

nd

nd

nd

0.014

0.29

0.038

0.35

0.012

0.12

0.56

0.001

nd

0.12

0.0044

0.035

0.035

nd

nd

0.041

0.16

0.50

0.095

0.24

nd

Annual load 

as percent 

ofuse(%)

0.33

0.29

0.13

0.050

0.0010

0.14

0.050

0.050

0.040

nd

nd

0.37

0.94

0.25

nd

nd

nd

0.52

0.29

0.09

0.24

0.020

0.070

0.097

0.00072

nd

0.032

0.00081

0.015

0.015

nd

nd

0.0053

0.020

0.057

0.033

0.083

nd
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

ted DataFrom

3

SL

a.

o. 5"

(A

2.

S"

a

si

o

3O

3

§:

0 

CM

e

a.

o

0

5a> 

to

3

Basin or 

field plot 

area (ha)

16,100

24,600

24,600

24,600

24,700

24,700

27,300

36,400

42,000

42,000

45,700

47,072

65,800

76,200

95,500

122,400

126,100

180,400

361,900

361,900

575,400

788,000

788,000

911,300

1,713,100

1,902,400

2,874,900

2,874,900

2,929,100

2,929,100

2,929,100

3,858,500

6,926,700

7,571,606

7,571,606

9,208,600

22,110,800

22,110,830

Row 

crop 

area

30

76

76

76

49

49

24

63

30

30

25

51

66

70

68

44

22

37

4

4

17

8

8

9

56

10

10

10

44

44

44

80

61

58

58

51

21

17

State, 

country, or 

river basin

GA

IN

IN

IN

WI

WI

GA

NE

GA

GA

MD

Ontario

ND

NE

NE

CA

OR

WI

CA

CA

NC

VA

ND

NY

ND

CA

OR

OR

IN

IN

IN

MN

IL

OHR.

OHR.

MN/ND

MOR.

MOR.

Watershed 

name or 

soil type

Lime Cr.

Sugar Cr.

Sugar Cr.

Sugar Cr.

Duck Cr.

Duck Cr.

Aycocks Cr.

Prairie Cr.

Tucsawhatchee Cr.

Tucsawhatchee Cr.

Monocacy R.

average of 1 1 rivers (C, L, S)

Turtle R.

Shell Cr.

Maple Cr.

Salt Slough

Pudding R.

Milwaukee R.

Merced R.

Merced R.

TarR.

Shenandoah R.

Shenandoah R.

Mohawk R.

Red R. of the North above Fargo

San Joaquin R.

Willamette R. at Portland, OR

Willamette R. at Portland, OR

White R.

White R.

White R.

MN R.

ILR.

Wabash R.

Wabash R.

Red R. of the North at Pembina

Platte R.

Platte R.

Precipitation 

type

ram

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

1,707

467

467

467

813

813

2,820

2,118

3,943

3,943

2,968

1,003

865

4,178

4,432

26,512

6,146

3,815

12,342

12,342

38,368

8,615

8,615

15,328

19,407

106,364

39,365

39,365

60,000

34,824

142,773

53,000

280,000

136,983

136,983

93,927

300,000

248,805

Runoff or 

stream (kg)

nd

0.56

nd

0.33

nd

0.0098

nd

0.19

0.0070

nd

0.16

0.035

nd

2.0

3.6

1.6

4.5

nd

4.7

0.43

0.081

nd

5.2

nd

nd

21

232

95

nd

49

3.0

80

196

nd

343

nd

30

nd

Annual load 

as percent 

of use (%)

nd

0.12

nd

0.071

nd

0.0012

nd

0.0092

0.00018

nd

0.0054

0.0035

nd

0.049

0.080

0.0060

0.073

nd

0.038

0.0035

0.00021

nd

0.060

nd

nd

0.020

0.59

0.24

nd

0.14

0.0021

0.15

0.070

nd

0.25

nd

0.010

nd
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acc

listed in table 1 Continued

Basin or 

field plot 

area (ha)

22,110,830

22,1 10,830

22,149,600

22,170,400

22,170,400

22,170,400

44,366,700

44,366,700

52,602,900

135,767,800

184,718,800

184,718,800

184,718,800

184,718,800

315,621,500

315,621,544

315,621,544

Row 

crop 

area

<%)

17

17

17

24

32

32

31

31

16

10

18

8

8

8

15

7

7

State, 

country, or 

river basin

MOR.

MOR.

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

OHR.

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

Watershed 

name or 

soil type

Platte R.

Platte R.

Platte R.

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Grafton, IL

MS R. at Grafton, IL

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MO R. at Thebes, IL

MO R. at Thebes, IL

MO R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

MS and Atchafalaya R.

MS and Atchafalaya R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

248,805

248,805

245,606

250,000

259,963

259,963

1,076,047

1,076,047

490,000

1,100,000

2,300,000

2,147,139

2,147,139

2,147,139

3,400,000

3,053,287

3,053,287

Runoff or 

stream (kg)

6.6

38

76

50

26

9.5

nd

nd

nd

nd

nd

2,724

205

nd

nd

153

99

Annual load 

as percent 

of use (%)

0.0027

0.015

0.031

0.020

0.010

0.0037

nd

nd

nd

nd

nd

0.13

0.0095

nd

nd

0.0050

0.0032

CYANAZINE

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.004

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

IA

IA

IA

IA

IA

IA

IA

IA

IA

1A

IA

IA

IA

IA

IA

IA

IA

IA

PA

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiS

SiS

SiS

SiS

SiS

SiS

SiC

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

rain

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.018

0.00036

0.00032

0.00052

0.00047

0.00042

0.00026

0.00079

0.00049

0.0013

0.00077

0.00047

0.00088

0.00080

0.0010

0.0011

0.00091

0.0011

0.0013

0.00103

5.3

4.7

7.7

7.0

6.3

3.8

12

7.3

19

11

7.0

13

12

15

17

14

16

19

5.7
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

ted DataFromield

a. *"

S

2.

a*1 

a.'

(D

3D

O

3

Surface Watei

w

Basin or 

field plot 

area (ha)

0.004 

0.004

0.004

0.004

0.004

0.004 

0.004

0.004

0.004

0.004

0.004

0.004 

0.004 

0.26 

0.26

0.26

0.26

0.26

0.26

0.26

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.0

1.0

1.0

1.0

1.

1.

1.

1.

1.

1.

Row 

crop 

area

100 

100

100

100

100

100 

100

100

100

100

100

100 

100 

100 

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

State, 

country, or 

river basin

PA 

PA

PA

PA

PA

PA 

PA

PA

PA

PA

PA

PA 

PA 

PA 

PA

PA

PA

PA

PA

PA

MD

MD

MD

MD

MD

MD

MD

MD

GA

GA

GA

GA

VT

VT

VT

VT

VT

VT

Watershed 

name or 

soil type

SiC 

SiC

SiC

SiC

SiC

SiC 

SiC

SiC

SiC

SiC

SiC

SiC 

SiC 

SiCL 

SiCL

SiCL

SiCL

SiCL

SiCL

SiCL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

LS

LS

LS

LS

coarse L

coarse L

L

L

L

L

Precipitation 

type

ram 

rain

rain

rain

rain

rain 

rain

rain

rain

rain

rain

rain 

rain 

rain 

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

sim

sim

sim

sim

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

0.018 

0.027

0.018

0.027

0.018

0.027 

0.0088

0.0088

0.018

0.0088

0.018

0.0088 

0.018 

0.57 

0.57

0.57

0.57

0.57

0.57

0.57

0.40

0.40

0.40

0.40

0.40

0.40

0.40

0.40

4.7

5.1

4.7

5.1

3.3

2.0

0.54

0.40

0.40

0.27

Runoff or 

stream (kg)

0.00014 

0.00012

0.000025

0.000056

0.000032

0.000027 

0.00013

0.000010

0.000023

0.000006

0.000022

0.000013 

0.000018 

0.0007 

0.0017

0.000057

nd

0.00034

nd

nd

0.0021

0.0034

0.00060

0.001 1

0.0052

0.0077

0.0020

0.0027

0.056

0.087

0.071

0.14

0.033

0.061

0.0054

0.054

0.010

nd

Annual load 

as percent 

of use (%)

0.75 

0.45

0.14

0.21

0.18

0.10 

1.5

0.11

0.13

0.070

0.12

0.15 

0.10 

0.13 

0.30

0.010

nd

0.060

nd

nd

0.52

0.84

0.15

0.27

1.3

1.9

0.50

0.68

1.2

1.7

1.5

2.8

1.0

3.1

1.0

13

2.5

nd
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

-< 

oa

V)

e 

a>

O 

tt

sr

Basin or 

field plot 

area (ha)

1.1 

1.1

1.1

1.3

1.3

1.38

1.4

1.46

1.5

1.5

5.0

6.4

7.6

57.5

2,700

3,327

3,327

4,400

5,055

11,600

11,600

13,300

13,300

14,100

14,100

14,600

14,600

15,500

16,100

24,600

24,600

24,600

^4,700 

' 24,700 

27,300

36,400

42,000

42,000

Row 

crop 

area

100 

100

100

100

100

100

100

100

100

100

100

100

100

0

35

85

85

40

75

28

28

47

47

49

49

87

87

19

30

76

76

76

49 

49

24

63

30

30

State, 

country, or 

river basin

VT 

VT

VT

GA

GA

GA

GA

VT

VT

VT

IA

IA

IA

MN

CA

NE

NE

NC

IA

PA

PA

WI

WI

PA

PA

IN

IN

NY

GA

IN

IN

IN

WI 

WI 

GA

NE

GA

GA

Watershed 

name or 

soil type

L

L

L

SL

SCL

SL/SCL

SL

L

coarse L

coarse L

SiL

SiL

SiL

Lake Harriet

Orestimba Cr.

Recharge Lake (SL)

Recharge Lake (SL)

Pete Mitchell Swamp

Four-mile Cr. (SiL)

East Mahantango Cr.

East Mahantango Cr.

North Branch Milwaukee R.

North Branch Milwaukee R.

Mill Cr.

Mill Cr.

Kessinger Ditch

Kessinger Ditch

Canajoharie Cr.

Lime Cr.

Sugar Cr.

Sugar Cr.

Sugar Cr.

Duck Cr. 

Duck Cr. 

Aycocks Cr.

Prairie Cr.

Tucsawhatchee Cr.

Tucsawhatchee Cr.

Precipitation 

type

rain 

rain

rain

rain

NA

NA

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain 

rain 

rain

rain

rain

rain

Mass use

Basin (kg)

0.27 

0.32

0.32

2.1

2.1

1.9

1.9

0.72

4.5

2.7

11

14

17

0.018

34

392

392

56

11,323

320

320

1,683

1,683

911

911

2,628

2,628

443

392

'4,196

4,196

4,196

3,652 

3,652 

783

6,413

3,015

3,015

Runoff or 

stream (kg)

nd 

0.000032

0.000016

0.021

0.021

0.0013

0.0013

0.0064

0.041

0.18

0.11

0.12

0.16

0.00031

2.4

1.1

0.55

0.0054

9.1

1.5

3.7

2.8

0.10

0.23

0.45

133

20

0.44

0.098

16

8.0

3.9

35 

4.3 

nd

1.2

0.11

3.6

Annual load 

as percent 

of use (%)

nd 

0.010

0.0050

1.0

1.0

0.07

0.07

0.90

0.90

6.5

0.96

0.82

0.96

1.7

7.2

0.29

0.14

0.0096

0.080

0.47

1.2

0.17

0.0059

0.025

0.049

5.1

0.76

0.10

0.025

0.39

0.19

0.094

0.95 

0.12 

nd

0.018

0.0037

0.12
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

led DataFrom

JL

a.

CO

S

o. 5'

(A

2.

 o

CD

o'

51

CD

30

a

o

a:

0 

CO

1o

CD

e>

53

Basin or 

field plot 

area (ha)

45,700

47,072

76,200

95,500

122,400

143,000

177,400

177,400

177,400

177,400

180,400

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

269,900

269,900

269,900

269,900

269,900

269,900

269,900

269,900

312,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

Row 

crop 

area

25

51

70

68

44

83

26

26

26

26

37

4

4

4

4

4

4

4

4

4

4

67

67

67

67

67

67

67

67

66

80

80

80

80

80

80

80

80

State, 

country, or 

river basin

MD

Ontario

NE

NE

CA

IL

OH

OH

OH

OH

WI

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

MI

MI

MI

MI

MI

MI

MI

MI

NB

OH

OH

OH

OH

OH

OH

OH

OH

Watershed 

name or 

soil type

Monocacy R.

average of 1 1 rivers (C, L, S)

Shell Cr.

Maple Cr.

Salt Slough

Sangamon R.

Grand R.

Grand R.

Grand R.

Grand R.

Milwaukee R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Raisin R.'

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

West Fork of the Big Blue R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Precipitation 

type

ram

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

1,017

1,003

12,320

12,796

6,615

19,000

4,740

4,740

4,740

4,740

18,458 ,

3,800

3,800

3,800

3,800

3,800

3,800

3,800

3,800

3,800

3,800

14,760

14,760

14,760

14,760

14,760

14,760

14,760

14,760

39,000

33,720

33,720

33,720

33,720

33,720

33,720

33,720

33,720

Runoff or 

stream (kg)

4.3

0.035

132

1,412

20

279

0.06

5.0

nd

nd

79

41

4.1

78

20

27

1.1

11

5.1

nd

0.80

101

217

52

146

59

2.1

35

2.8

121

128

184

156

320

73

22

120

527

Annual load 

as percent 

of use (%)

0.43

0.0035

1.1

11

0.30

1.5

0.0013

0.11

nd

nd

0.43

1.1

0.11

2.1

0.52

0.70

0.029

0.30

0.13

nd

0.021

0.68

1.5

0.36

0.99

0.40

0.014

0.24

0.019

0.31

0.38

0.55

0.46

0.95

0.22

0.066

0.36

1.6
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acc

listed in table 1 Continued

= 

er

CD

rs»

C/»

c

Q>

-3 

e^

a

01

S

Basin or 

field plot 

area (ha)

324,000

324,000

324,000

399,840

679,000

684,000

911,300

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,713,100

2,929,100

2,929,100

2,929,100

2,929,100

3,858,500

3,858,500

3,858,500

6,926,700

7,571,606

7,571,606

7,571,606

16,058,000

16,058,000

16,058,000

22,110,800

22,110,830

22,110,830

22,110,830

22,149,600

Row 

crop 

area

<%)

80

80

80

39

51

74

9

76

76

76

76

76

76

76

76

76

76

76

56

44

44

44

44

80

80

80

61

58

58

58

6

6

6

21

17

17

17

17

State, 

country, or 

river basin

OH

OH

OH

Ontario

Ontario

Ontario

NY

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

ND

IN

IN

IN

IN

MN

MN

MN

IL

OHR.

OHR.

OHR.

OHR.

OHR.

OHR.

MOR.

MOR.

MOR.

MOR.

MOR.

Watershed 

name or 

soil type

Sandusky R.

Sandusky R.

Sandusky R.

Saugeen R. (S, L)

Grand R. (C, L , S)

Thames R (CL)

Mohawk R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Red R. of the North above Fargo

White R.

White R.

White R.

White R.

MNR.

MNR.

MNR.

ILR.

Wabash R.

Wabash R.

Wabash R.

OH R. at Greenup Dam, KY

OH R. at Greenup. Dam, KY

OH R. at Greenup Dam, KY

Platte R.

Platte R.

Platte R.

Platte R.

Platte R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

33,720

33,720

33,720

33,120

33,200

108,820

11,657

158,910

158,910

158,910

158,910

158,910

158,910

158,910

158,910

158,910

158,910

158,910

38,855

210,000

307,945

307,945

307,945

450,000

500,000

500,000

750,000

1,117,207

1,117,207

1,117,207

176,456

176,456

176,456

460,000

590,068

590,068

590,068

589,539

Runoff or 

stream (kg)

81

25

185

16

52

190

19

1,296

2,623

270

1,750

937

48

1,271

2,813

1,047

752

2,373

96

1,596

1,614

3,807

2,093

5,850

1,600

6,500

23,250

nd

15,496

21,172

nd

2,010

1,086

11,960

30,289

1,084

3,818

5,066

Annual load 

as percent 

of use (%)

0.24

0.074

0.55

0.048

0.16

0.18

0.17

0.82

1.7

0.17

1.1

0.59

0.030

0.80

1.8

0.66

0.47

1.5

0.25

0.76

0.52

1.2

0.68

1.3

0.32

1.3

3.1

nd

1.4

1.9

nd

1.1

0.62

2.6

5.1

0.18

0.65

0.86
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

ted DataFrom

Tl

JL

CO

E

«'

v>

«?

ao'

a!

<D

30 

B 

3

s

CO

B

5-

0)

o

CD

$

s

S5

Basin or 

field plot 

area (ha)

22,170,400

22,170,400

22,170,400

22,170,400

25,123,000

25,123,000

25,123,000

44,366,700

44,366,700

44,366,700

52,602,900

52,602,900

52,602,900

52,602,900

83,605,200

83,605,200

83,605,200

135,767,800

135,767,800

135,767,800

135,767,800

184,718,800

184,718,800

184,718,800

184,718,800

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,544

315,621,544

315,621,544

Row 

crop 

area

24

32

32

32

8

8

8

31

31

31

16

9

9

9

6

6

6

10

7

7

7

18

8

8

8

15

15

15

15

15

15

15

7

7

7

State, 

country, or 

river basin

MSR.

MSR.

MSR.

MSR.

OHR.

OHR.

OHR.

MSR.

MSR.

MSR.

OHR.

OHR.

OHR.

OHR.

MOR.

MOR.

MOR.

MOR.

MOR.

MOR.

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

Watershed 

name or 

soil type

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

IMS R. at Clinton, IA

OH R. at Cannelton Dam, KY

OH R. at Cannelton Dam, KY

OH R. at Cannelton Dam, KY

MS R. at Grafton, IL

MS R. at Grafton, IL

MS R. at Grafton, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

MO R. at Omaha, NE

MO R. at Omaha, NE

MO R. at Omaha, NE

MO at Hermann, MO

MO at Hermann, MO

MO at Hermann, MO

MO at Hermann, MO

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS and Atchafalaya R.

MS and Atchafalaya R.

MS and Atchafalaya R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

1,600,000

1,185,490

1,185,490

1,185,490

607,285

607,285

607,285

5,283,933

5,283,933

5,283,933

1,400,000

2,083,481

2,083,481

2,083,481

934,274

934,274

934,274

2,000,000

2,573,521

2,573,521

2,573,521

6,200,000

8,221,540

8,221,540

8,221,540

8,300,000

8,300,000

8,300,000

8,300,000

8,300,000

8,300,000

8,300,000

11,254,214

11,254,214

11,254,214

Runoff or 

stream (kg)

9,120

2,166

1,911

1,373

12,489

15,312

7,102

nd

18,086

16,039

11,480

37,246

56,134

49,149

6,453

1,469

3,669

40,000

33,524

9,181

10,088

99,200

98,050

19,991

31,831

124,500

43,000

321,000

151,000

216,000

172,000

88,000

160,950

79,634

60,332

Annual load 

as percent 

of use (%)

0.57

0.18

0.16

0.12

2.1

2.5

1.2

nd

0.34

0.30

0.82

1.8

2.7

2.4

0.69

0.16

0.39

2.0

1.3

0.36

0.39

1.6

1.2

0.24

0.39

1.5

0.52

3.9

1.8

2.6

2.1

1.1

1.4

0.71

0.54

2,700 35 CA Orestimba Cr.

DCPA

rain 86 2.0 2.3 
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

Basin or 

field plot 

area (ha)

3,900

14,600

122,400

147,300

Row 

crop 

area

46

55

44

15

State, 

country, or 

river basin

OR

WA

CA

CO

Watershed 

name or 

soil type

Zollner Cr.

Crab Cr. Lateral

Salt Slough

Lonetree Cr.

Precipitation 

type

rain

rain

rain

rain

Mass use

Basin (kg)

77

370

1294

1765

Runoff or 

stream (kg)

0.012

4.5

0.91

74

Annual load 

as percent 

of use (%)

0.016

1.2

0.070

4.2

DIAZINON

2,700

3,900

14,600

45,700

47,072

122,400

126,100

361,900

361,900

1,902,400

2,929,100

2,929,100

6,926,700

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

35

46

55

25

51

44

22

4

4

10

44

44

61

21

24

16

10

18

15

CA

OR

WA

MD

Ontario

CA

OR

CA

CA

CA

IN

IN

IL

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

Orestimba Cr.

Zollner Cr.

Crab Cr. Lateral

Monocacy R.

average of 1 1 rivers (C, L, S)

Salt Slough

Pudding R.

Merced R.

Merced R.

San Joaquin R.

White R.

White R.

ILR.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

732

252

159

501

8.0

12,874

3,905

8,370

8,370

84,384

80

90,701

2,400

39,000

18,000

6,600

84,000

1 10,000

150,000

3.7

0.27

0.0075 -

0.43

0.00020

11

3.7

16

3.2

169

16

53

96

7.8

nd

73

59

143

nd

0.51

0.11

0.0047

0.085

0.0025

0.085

0.094

0.19

0.038

0.20

20

0.059

4.0

0.020

nd

1.1

0.070

0.13

nd

DISULFOTON

4,400

14,600

16,100

27,300

37,700

638,000

3,858,500

6,926,700

22,l' 10,800

22,170,400

52,602,900

40

55

30

24

40

52

80

61

21

24

16

NC

WA

GA

GA

WA

WA

MN

IL

MOR.

MSR.

OHR.

Pete Mitchell Swamp

Crab Cr. Lateral

Lime Cr.

Aycocks Cr.

El 68 Wasteway

Palouse R.

MNR.

ILR.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

44

543

211

286

901

6,930

390

240

39,000

11,000

3,300

nd

0.022

nd

nd

0.33

nd

nd

nd

nd

nd

nd

nd

0.0041

nd

nd

0.037

nd

nd

nd

nd

nd

nd
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed m table 1 Continued

as 

3 

vt

I

Basin or 

field plot 

area (ha)

135,767,800

184,718,800

315,621,500

60

60

60

2,700

3,900

13,300

13,300

14,600

14,600

14,600

15,500

24,600

24,600

24,600

24,700

24,700

36,400

37,700

56,600

62,300

65,800

76,200

93,542

95,500

122,400

126,100

147,300

180,400

229,400

240,700

361,900

361,900

638,000

Row 

crop 

area

(%)

10

18

15

100

100

100

35

46

47

47

55

87

87

19

76

76

76

49

49

63

40

56

12

66

70

68

44

22

15

37

22

29

4

4

52

State, 

country, or 

river basin

MOR.

MSR.

MSR.

CA

CA

CA

CA

OR

WI

WI

WA

IN

IN

NY

IN

IN

IN

WI

WI

NE

WA

MN

ID

ND

NE

Greece

NE

CA

OR

CO

WI

ID

MN

CA

CA

WA

Watershed 

name or 

soil type

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

fine texture

fine texture

fine texture

Orestimba Cr.

Zollner Cr.

North Branch Milwaukee R.

North Branch Milwaukee R.

Crab Cr. Lateral

Kessinger Ditch

Kessinger Ditch

Canajoharie Cr.

Sugar Cr.

Sugar Cr.

Sugar Cr.

Duck Cr.

Duck Cr.

Prairie Cr.

El 68 Wasteway

Snake R.

Rock Cr.

Turtle R.

Shell Cr.

C, SC, SiLC

Maple Cr.

Salt Slough

Pudding R.

Lonetree Cr.

Milwaukee R.

Teton R.

Wild Rice R.

Merced R.

Merced R.

Palouse R.

Precipitatio 

type

rain

rain

rain

irrigation

irrigation

irrigation

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

irrigation

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

n 

Basin (kg)

200,000

220,000

470,000

EPTC

168

396

828

302

723

976

976

2,307

517

517

176

829

829

829

1,279

1,279

834

1,883

1,713

2,996

2,281

1,604

1,692

1,707

6,750

10,881

4,001

8,854

14,449

2,778

4,963

4,963

30,953

Runoff or 

stream (kg)

nd

nd

nd

12

25

56

0.42

0.27

0.59

0.065

3.6

0.26

0.14

0.10

nd

0.28

0.20

1.9

0.075

|5.015

5.9

0.058

1.2

0.049

0.13

37

0.19

40

5.1

14

1.0

1.8

0.17

23

0.52

0.79

Annual load 

as percent 

of use (%)

nd

nd

nd

7.2

6.4

6.8

0.14

0.037

0.060

0.0066

0.16

0.050

0.026

0.059

nd

0.034

0.024

0.15

0.0059

0.0018

0.32

0.0034

0.041

0.0022

0.0081

2.2

0.011

0.60

0.047

0.35

0.012

0.013

0.0062

0.46

0.011

0.0025
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

o>

er

CD

!V

CO

c

3

Q)

-3 

o^

o 

S

S

Basin or 

field plot 

area (ha)

1,713,100

1,902,400

2,874,900

2,874,900

2,874,900

2,929,100

2,929,100

2,929,100

2,929,100

3,858,500

6,926,700

7,571,606

7,571,606

7,571,606

9,208,600

22,110,800

22,110,830

22,110,830

22,110,830

22,149,600

22,170,400

22,170,400

22,170,400

22,170,400

28,179,200

28,179,200

28,179,200

44,366,700

44,366,700

44,366,700

52,602,900

62,160,000

62,160,000

62,160,000

66,537,100

66,537,100

66,537,100

83,605,200

Row 

crop 

area

(%)

56

10

10

10

10

44

44

44

44

80

61

58

58

58

51

21

17

17

17

17

24

32

32

32

8

8

8

31

31

31

16

3

3

3

2

2

2

6

State, 

country, or 

river basin

MN/ND

CA

OR

OR

OR

IN

IN

IN

IN

MN

IL

OHR.

OHR.

OHR.

MN/ND

MOR.

MOR.

MOR.

MOR.

MOR.

MSR.

MSR.

MSR.

MSR.

COLR.

COLR.

COLR.

MSR.

MSR.

MSR.

OHR.

COLR.

COLR.

COLR.

COLR.

COLR.

COLR.

MOR.

Watershed 

name or 

soil type

Red R. of the North above Fargo

San Joaquin R.

Willamette R.

Willamette R.

Willamette R.

White R.

White R.

White R.

White R.

MNR.

ILR.

Wabash R.

Wabash R.

Wabash R.

Red R. of the North at Pembina

Platte R.

Platte R.

Platte R.

Platte R.

Platte R.

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

Snake R.

Snake R.

Snake R.

MS R. at Grafton, IL

MS R. at Grafton, IL

MS R. at Grafton, IL

OH R. near Grand Chain, IL

Columbia R. at Warrendale, OR

Columbia R. at Warrendale, OR

Columbia R. at Warrendale, OR

Columbia R. near Quincy, OR

Columbia R. near Quincy, OR

Columbia R. near Quincy, OR

MO R. at Omaha, NE

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

_ . . Runoff or Basin (kg) _^_ .. . 9 stream (kg)

138,481

42,697

52,226

52,226

52,226

42,000

60,776

60,776

252,742

1,500,000

650,000

228,419

228,419

228,419

369,169

460,000

261,785

261,785

261,785

257,340

3,900,000

897,607

897,607

897,607

477,659

477,659

477,659

1,957,905

1,957,905

1,957,905

810,000

698,476

698,476

698,476

753,370

753,370

753,370

1,069,680

192

63

65

90

43

8.4

12

13

5.8

nd

325

nd

11

22

75

nd

48

2.1

2.9

6.7

390

95

38

23

140

232

171

nd

79

88

162

nd

449

451

375

377

396

280

Annual load 

as percent 

of use (%)

0.14

0.15

0.12

0.17

0.08

0.02

0.02

0.02

0.0023

nd

0.050

nd

0.0049

0.0096

0.020

nd

0.018

0.00081

0.0011

0.0026

0.010

0.011

0.0042

0.0025

0.029

0.049

0.036

nd

0.0040

0.0045

0.020

nd

0.064

0.065

0.050

0.050

0.053

0.026
42 Selected DaaFrom

Tl

Z.

a.

n.

CA

I.

n

SL 

a>

30

O

S

1

n

CD

$

s?

3

Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

Basin or 

field plot 

area (ha)

83,605,200

83,605,200

135,767,800

135,767,800

135,767,800

135,767,800

184,718,800

184,718,800

184,718,800

184,718,800

315,621,500

315,621,544

315,621,544

315,621,544

Row 

crop 

area

6

6

10

7

7

7

18

8

8

8

15

7

7

7

State, 

country, or 

river basin

MOR.

MOR.

MOR.

MOR.

MOR.

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

Watershed 

name or 

soil type

MO R. at Omaha, NE

MO R. at Omaha, NE

MO R. at Hermann, MO

MO R. at Hermann, MO

MO R. at Hermann, MO

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

MS and Atchafalaya R.

MS and Atchafalaya R.

MS and Atchafalaya R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

1,069,680

1,069,680

4,200,000

1,637,862

1,637,862

1,637,862

12,000,000

3,674,673

3,674,673

3,674,673

13,000,000

4,125,823

4,125,823

4,125,823

Runoff or 

stream (kg)

2,230

194

nd

83

133

70

1,200

335

101

119

nd

707

nd

nd

Annual load 

as percent 

of use (%)

0.21

0.018

nd

0.0051

0.0081

0.0043

0.010

0.0091 .

0.0027

0.0032

nd

0.017

nd

nd

ETHALFLURALIN

2,700

4,400

14,600

14,600

16,100

27,300

42,000

42,000

62,300

65,800

1,713,100

9,208,600

35

40

87

87

30

24

30

30

12

66

56

51

CA

NC

IN

IN

GA

GA

GA

GA

ID

ND

MN/ND

MN/ND

Orestimba Cr.

Pete Mitchell Swamp

Kessinger Ditch

Kessinger Ditch

Lime Cr.

Aycocks Cr.

Tucsawhatchee Cr.

Tucsawhatchee Cr.

Rock Cr.

Turtle R.

Red R. of the North above Fargo

Red R. of the North at Pembina

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

45

83

159

159

611

1,071

1,332

1,332

1,030

4,377

43,902

232,179

0.60

nd

nd

nd

0.0056

nd

0.025

nd

0.062

nd

nd

nd

1.32

nd

nd

nd

0.00092

nd

0.0019

nd

0.0060

nd

nd

nd

ETHOPROP

3,500

3,900

4,400

14,600

37,700

126,100

229,400

575,400

18

46

40

55

40

22

22

17

NC

OR

NC

WA

WA

OR

ID

NC

Devils Cradle Cr.

Zollner Cr.

Pete Mitchell Swamp

Crab Cr. Lateral

El 68 Wasteway

Pudding R.

Teton R.

Tar R.

rain

rain

rain

rain

rain

rain

rain

rain

48

208

101

648

647

3,157

4,337

8,904

nd

0.97

0.0073

0.064

0.052

6.0

nd

0.57

nd

0.47

0.0072

0.010

0.0080

0.19

nd

0.0064
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

s

Basin or 

field plot 

area (ha)

3,858,500

6,926,700

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

Row 

crop 

area

(%)

80

61

21

24

16

10

18

15

State, 

country, or 

river basin

MN

IL

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

Watershed 

name or 

soil type

,MNR.

'iL R.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

990

10

37,000

1,400

3,900

85,000

98,000

120,000

Runoff or 

stream (kg)

0.79

nd

nd

nd

nd

nd

nd

nd

Annual load 

as percent 

of use (%)

0.080

nd

nd

nd

nd

nd

nd

nd

FONOFOS

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

2,700

3,900

4,400

14,600

14,600

14,600

16,100

24,600

24,600

24,600

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

35

46

40

55

87

87

30

76

76

76

IA

IA

IA

IA

IA

IA

IA

IA

1A

IA

IA

IA

IA

IA

IA

IA

IA

IA

CA

OR

NC

WA

IN

IN

GA

IN

IN

IN

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiS

SiS

SiS

SiS

SiS

SiS

Orestimba Cr.

Zollner Cr.

Pete Mitchell Swamp

Crab Cr. Lateral

Kessinger Ditch

Kessinger Ditch

Lime Cr.

Sugar Cr.

Sugar Cr.

Sugar Cr.

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

0.0067

29

170

53

262

210

210

303

334

334

334

0.00022

0.00038

0.00014

0.00013

0.00020

0.000054

0.000081

0.000060

0.00010

0.000067

0.00003

0.000054

0.00012

0.000087

0.00013

0.000087

0.00013

0.0001 1

0.96

0.21

0.021

nd

nd

nd

0.43

0.20

nd

0.01 1

3.2

5.6

2.1

2.0

3.0

0.80

1.2

0.90

1.5

1.0

0.50

0.80

1.8

1.3

1.9

1.3

1.9

1.6

3.4

0.13

0.041

nd

nd

nd

0.14

0.060

nd

0.0034
44 Selected DaaFrom

-n 

CD"

n.

a. S""

1.

CD

30

a

S

CO

1

n

CD

D> 

CD

5

Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

Basin or 

field plot 

area (ha)

27,300

36,400

42,000

42,000

76,200

95,500

126,100

575,400

2,929,100

3,858,500

6,926,700

7,571,606

7,571,606

7,571,606

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

0.0125

0.025

0.035

0.035

0.045

0.045

0.045

0.045

0.045

0.045

0.55

0.55

0.59

0.59

Row 

crop 

area

24

63

30

30

70

68

22

17

44

80

61

58

58

58

21

24

16

10

18

15

100

100

100

100

100

100

100

100

100

100

100

100

100

100

State, 

country, or 

river basin

GA

NE

GA

GA

NE

NE

OR

NC

IN

MN

IL

OHR.

OHR.

OHR.

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

France

France

Italy

Italy

LA

LA

LA

LA

LA

LA

OH

OH

OH

OH

Watershed 

name or 

soil type

Aycocks Cr.

Prairie Cr.

Tucsawhatchee Cr.

Tucsawhatchee Cr.

Shell Cr.

Maple Cr.

Pudding R.

Tar R.

White R.

MNR.

ILR.

Wabash R.

Wabash R.

Wabash R.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

SiL

SiL

CL

CL

SiCL

SiCL

SiCL

SiCl

SiCl

SiCl

fine Si

fine Si

fineL

fine L

Precipita 

type

ram

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

NA

NA

NA

rain

rain

rain

rain

Mass use

ition 

Basin (kg)

551

1,172

615

615

2,254

2,339

2,639

6,332

20,000

31,000

120,000

79,512

79,512

79,512

100,000

65,000

160,000

270,000

660,000

940,000

LINDANE

0.017

0.034

LINURON

0.017

0.028

0.10

0.10

0.10

i 0.10

0.10

0.10

1.2

1.2

1.3

1.3

Runoff or 

stream (kg)

nd

0.15

nd

nd

0.11

1.2

0.51

nd

8.0

140

108

nd

nd

nd

30

72

16

54

132

nd

0.000000051

0.00000020

0.00048

0.00064

0.000040

0.000040

0.000040

0.000020

0.000040

0.00029

0.00000

0.0057

0.00012

0.00013

Annual load 

as percent 

of use (%)

nd

0.013

nd

nd

0.0048

0.052

0.019

nd

0.040

0.45

0.090

nd

nd

nd

0.030

0.11

0.010

0.020

0.020

nd

0.00030

0.00060

2.8

2.3

0.040

0.040

0.040

0.020

0.040

0.29

0.00010

0.46

0.0090

0.010
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acco

listed in table 1 Continued

Basin or 

field plot 

area (ha)

0.68

0.68

0.79

0.79

11,600

11,600

14,100

14,100

14,600

14,600

24,600

24,600

24,600

45,700

2,929,100

3,858,500

6,926,700

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

Row 

crop 

area

100

100

100

100

28

28

49

49

87

87

76

76

76

25

44

80

61

21

24

16

10

18

15

State, 

country, or 

river basin

OH

OH

OH

OH

PA

PA

PA

PA

IN

IN

IN

IN

IN

MD

IN

MN

IL

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

Watershed 

name or 

soil type

fineL

fine L

fineL

fineL

East Mahantango Cr.

East Mahantango Cr.

Mill Cr.

Mill Cr.

Kessinger Ditch

Kessinger Ditch

Sugar Cr.

Sugar Cr.

Sugar Cr.

Monocacy R.

White R.

MNR.

ILR.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

1.5

1.5

1.8

1.8

135

135

165

165

174

174

318

318-

318

544

44,000

540

86,000

3,700

15,000

270,000

55,000

240,000

630,000

Runoff or 

stream (kg)

0.0000015

nd

0.0018

0.018

0.019

0.292

nd

0.020

0.062

nd

0.36

nd

0.11

2.5

4.4

nd

nd

nd

nd

nd

nd

nd

nd

Annual load 

as percent 

of use (%)

0.00010

nd

0.10

1.0

0.014

0.22

nd

0.012

0.036

nd

0.11

nd

0.034

0.47

0.010

nd

nd

nd

nd

nd

nd

nd

nd

MALATHION

g5"

e

o>

-3

o 

£

0)

01

2,700

3,900

14,600

122,400

126,100

1,902,400

2,929,100

6,926,700

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

35

46

55

44

22

10

69

61

21

24

16

10

18

15

CA

OR

WA

CA

OR

CA

IN

IL

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

Orestimba Cr.

Zollner Cr.

Crab Cr. Lateral

Salt Slough

Pudding R.

San Joaquin R.

White R.

ILR.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

115

98

301

4,420

1,660

20,727

980

900

9,400

230

45,000

85,000

100,000

460,000

0.0093

0.52

0.053

2.0

0.75

3.4

1.2

nd

nd

nd

nd

nd

nd

nd

0.0081

0.53

0.018

0.045

0.045

0.017

0.12

nd

nd

nd

nd

nd

nd

nd
46 Selected DaaFrom

^i

JL

a.

f?

o. 5'

VI

a

R o'

5!

CD

3D 

3

O

3!

0

1n

a

g

Q)

53

Table 2. Summary of data from the scientific literature, the National Water-Quality Assessmer 

listed in table 1 Continued

Basin or 

field plot 

area (ha)

Row 

crop 

area

State, 

country, or 

river basin

Watershed 

name or 

soil type

Precipitation 

type

it Program, and the National Strea

Mass use

Basin (kg)

Runoff or 

stream (kg)

im-Quality Accou

Annual load 

as percent 

of use (%)

METHYL PARATHION

0.0017

0.0017

0.0017

0.0017

60

60

60

60

60

60

2,700

14,600

36,400

45,700

76,200

95,500

122,400

213,100

2,929,100

3,858,500

6,926,700

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

100

100

100

100

100

100

100

100

100

100

35

55

63

25

70

68

44

16

44

80

61

21

24

16

10

18

15

NC

NC

NC

NC

CA

CA

CA

CA

CA

CA

CA

WA

NE

MD

NE

NE

CA

TX

IN

MN

IL

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

LS

LS

SL

SL

fine textured

fine textured

fine textured

fine textured

fine textured

fine textured

Orestimba Cr.

Crab Cr. Lateral

Prairie Cr.

Monocacy R.

Shell Cr.

Maple Cr.

Salt Slough

Chambers Cr.

White R.

MNR.

1LR.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

NA

NA

NA

NA

irrigation

irrigation

irrigation

irrigation

irrigation

irrigation

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

0.023

0.023

0.023

0.023

25

126

34

61

75

8.4

38

314

2,084

998

4,008

4,160

1,546

2,240

80

8,500

9,400

140,000

15,000

19,000

120,000

150,000

160,000

0.0000018

0.0000055

0.000030

0.000057

0.00076

0.40

0.10

0.098

0.13

0.00084

nd

nd

nd

0.073

nd

0.0010

nd

nd

nd

8.5

nd

nd

nd

nd

nd

nd

nd

0.0080

0.024

0.13

0.25

0.0030

0.32

0.31

0.16

0.17

0.010

nd

nd

'nd

0.0074

nd

0.000024

nd "

nd

nd

0.10

nd

nd

nd

nd

nd

nd

nd

METOLACHLOR

0.0024

0.0024

0.0024

0.0024

0.0088

0.0088

0.0088

0.0088

100

100

100

100

100

100

100

100

Ontario

Ontario

Ontario

Ontario

NC

NC

NC

NC

L

L

L

L

SCL

SCL

SCL

SCL

rain

rain

rain

rain

sim

sim

sim

sim

0.0080

0.0080

0.0080

0.0080

0.017

0.017

0.017

0.017

0.000054

0.000014

0.000089

0.000032

0.000067

0.00025

0.00018

0.00045

0.67

0.18

1.1

0.40

0.40

1.5

1.1

2.7
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

s1

>le 2:Summary ol

o 

£

Basin or 

field plot 

area (ha)

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088 

0.0088 

0.0088 

0.0088 

0.0088

0.0088 

0.0088

0.0088

Row 

crop 

area

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100 

100 

100 

100 

100

100 

100

100

State, 

country, or 

river basin

NC

NC

NC

NC

NC

NC

NC

NC

MS

MS

MS

MS

- MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS 

MS 

MS 

MS 

MS

MS 

MS

MS

Watershed 

name or 

soil type

SCL

SCL

SCL

SCL

SCL

SCL

SCL

SCL

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC 

SiC 

SiC 

SiC 

SiC

SiC 

SiC

SiC

Precipitation 

type

sim

sim

sim

sim

sim

sim

sim

sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim 

rain, sim 

rain, sim . 

rain, sim 

rain, sim

rain, sim 

rain, sim

rain, sim

Mass use

Basin (kg)

0.017

0.017

0.017

0.017

0.017

0.017

0.017

0.017

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0:030

0.030

0.030

0.030

0.030

0.030 

0.030 

0.030 

0.030 

0.030

0.030 

0.030

0.030

Runoff or 

stream (kg)

0.00020

0.0015

0.00015

0.00072

0.00023

0.0013

0.00013

0.00030

0.00024

0.00033

0.00018

0.00021

0.00030

0.00042

0.00012

0.00015

0.00024

0.00015

0.00036

0.000090

0.00030

0.00054

0.00018

0.000090

0.00075

0.00015

0.000090

0.0010

0.0013

0.00012

0.00006 

0.00018 

0.00030 

0.00024 

0.00012

0.00042 

0.000090

0.00024

Annual load 

as percent 

of use (%)

1.2

9.0

0.90

4.3

1.4

8.0

0.80

1.8

0.80

1.1

0.60

0.70

1.0

1.4

0.40

0.50

0.80

0.50

1.2

0.30

1.0

1.8

0.60

0.30

2.5

0.50

0.30

3.5

4.3

0.40

0.20 

0.60 

1.0 

0.80 

0.40

1.4 

0.30

0.80
£ Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

ted DataFromield

C£

c

CA

 o

CD

a

51

CD

30

i

to Surface Wi

w

3

Basin or 

field plot 

area (ha)

0.0088 

0.0088

0.0088

0.0088 

0.0088

0.039 

0.039

0.039

0.039

0.039

0.039 

0.039 

0.039 

0.04

0.04 

0.04

0.04

0.04

0.04

0.0486

0.0486

0.1

0.1

0.1068

0.26

0.26

0.26

0.26

0.26

0.26

0.26

.0

.0

.0

.0

.6

2.1

2.1

Row 

crop 

area

100 

100

100

100 

100

100 

100

100

100

100

100 

100 

100 

100

100 

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

State, 

country, or 

river basin

MS

MS

MS

MS 

MS

OH 

OH

OH

OH

OH

OH 

OH 

OH 

OH

OH 

OH

OH

OH

OH

VA

VA

Ontario

Ontario

Ontario

PA

PA

PA

PA

PA

PA

PA

Ontario

Ontario

Ontario

Ontario

LA

MS

MS

Watershed 

name or 

soil type

SiC 

SiC

SiC

SiC 

SiC

SiC 

SiC

SiC

SiC

SiC

SiC 

SiC 

SiC 

SiC

SiC 

SiC

SiC

SiC

SiC

SL

SL

CL

CL

CL

SiCL

SiCL

SiCL

SiCL

SiCL

SiCL

SiCL

CL

CL

CL

CL

CL

SiL

SiL

Precipitation 

type

rain, sim 

rain, sim

rain, sim

rain, sim 

rain, sim

rain 

rain

rain

rain

rain

rain 

rain 

rain 

rain

rain 

rain

rain

rain

rain

rain, sim

rain, sim

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

0.030 

0.030

0.030

0.030 

0.030

0.086 

0.18

0.086

0.086

0.086

0.18 

0.086 

0.086 

0.088

0.18 

0.088

0.088

0.18

0.088

0.051

0.044

0.17

0.17

0.18

0.57

0.57

0.57

0.57

0.57

0.57

0.57

2.6

2.6

2.6

2.1

3.5

4.7

4.7

Runoff or 

stream (kg)

0.00030 

0.00015

0.00057

0.00120 

0.00036

0.000045 

0.00016

0.00015

0.00002

0.0001 1

0.00053 

0.0001 1 

0.00021 

0.00006

0:00016 

0.00015

0.00013

0.00054

0.00070

0.00026

0.00053

0.00018

0.00018

0.0021

0.00092

0.0014

0.000057

nd

0.00034

nd

nd

0.0099

0.00099

0.063

0.0090

0.084

0.18

0.52

Annual load 

as percent 

of use (%)

1.0 

0.50

1.9

4.0 

1.2

0.052 

0.090

0.17

0.022

0.13

0.30 

0.13 

0.24 

0.07

0.09 

0.17

0.15

0.31

0.79

0.50

1.2

0.11

0.11

1.2

0.16

0.25

0.010

nd

0.060

nd

nd

0.38

0.038

2.4

0.43

2.4

3.8

11
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Acc

listed in table 1 Continued

0)

5"

</»

e

01

 3

o

»

Basin or 

field plot 

area (ha)

2.1

2.1

2.1

2.1

2.1

3.0

3.0

4.0

4.0

5.5

5.5

5.5

5.5

14.0

14.0

14.0

57.5

1,211

1,211

2,547

2,547

2,547

2,547

2,700

3,147

3,147

3,327

3,327

3,470

3,470

3,500

3,700

3,817

3,817

3,817

3,817

3,900

4,400

Row 

crop 

area

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

0

90

90

85

85

85

85

35

90

90

85

85

66

66

18

21

85

85

85

85

46

40

State, 

country, or 

river basin

MS

MS

MS

MS

MS

LA

LA

LA

LA

Ontario

Ontario

Ontario

Ontario

Ontario

Ontario

Ontario

MN

MO

MO

IA

IA

IA

IA

CA

MO

MO

NE

NE

Ontario

Ontario

NC

VA

IA

IA

IA

IA

OR

NC

Watershed 

name or 

soil type

SiL

SiL

SiL

SiL

SiL

CL

CL

CL

CL

L

L

L

L

CL

CL

CL

Lake Harriet

Goodwater Cr. (loess, claypan)

Goodwater Cr. (loess, claypan)

NA

NA

NA

NA

Orestimba Cr.

Goodwater Cr. (loess, claypan)

Goodwater Cr. (loess, claypan)

Recharge Lake (SL)

Recharge Lake (SL)

Nissouri Cr. (L, SiL)

Nissouri Cr. (L, SiL)

Devils Cradle Cr.

Muddy Cr.

NA

NA

NA

NA

ZollnerCr.

Pete Mitchell Swamp

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

4.7

4.7

4.7

4.7

4.7

6.5

6.5

8.6

8.6

15

15

15

15

34

36

36

0.023

79

105

1,300

1,150

930

1,100

151

474

627

665

665

3,100

3,650

108

250

2,150

1,500

2,200

2,100

509

764

Runoff or 

stream (kg)

0.0706

0.0019

0.40

0.038

0.0047

0.16

0.069

0.10

0.21

0.14

0.086

0.017

0.0029

0.0027

0.00036

0.0022

0.00039

1.7

3.9

2.3

18

0.76

2.9

4.6

32

13

1.5

1.7

4.7

3.7

0.14

1.9

3.4

20

1.5

4.2

3.0

1.9

Annual load 

as percent 

of use (%)

1.5

0.040

8.6

0.80

0.10

2.4

1.1

1.2

2.4

0.95

0.59

0.12

0.020

0.0080

0.0010

0.0060

1.7

2.1

3.7

0.18

1.6

0.082

0.26

3.0

6.8

2.0

0.23

0.25

0.15

0.10

0.13

0.75

0.16

1.3

0.070

0.20

0.59

0.25
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

Basin or 

field plot 

area (ha)

5,130

5,130

5,130

5,130

7,250

7,250

11,600

11,600

13,300

13,300

14,100

14,100

14,600

14,600

14,600

15,200

15,200

15,500

16,100

24,600

24,600

24,600

24,700

24,700.

27,300

36,400

42,000

42,000

45,700

65,800

76,200

93,542

95,500

122,400

126,100

143,000

147,300

177,400

Row 

crop 

area

85

85

85

85

90

90

28

28

47

47

49

49

55

87

87

23

23

19

30

76

76

76

49

49

24

63

30

30

25

66

70

NA

68

44

22

83

15

26

State, 

country, or 

river basin

IA

IA

IA

IA

MO

MO

PA

PA

WI

WI

PA

PA

WA

IN

IN

Ontario

Ontario

NY

GA

IN

IN

IN

WI

WI

GA

NE

GA

GA

MD

ND

NE

Greece

NE

CA

OR

IL

CO

OH

Watershed 

name or 

soil type

NA

NA

NA

NA

Goodwater Cr. (loess, claypan)

Goodwater Cr. (loess, claypan)

East Mahantango Cr.

East Mahantango Cr.

North Branch Milwaukee R.

North Branch Milwaukee R.

Mill Cr.

Mill Cr.

Crab Cr. Lateral

Kessinger Ditch

Kessinger Ditch

NA

NA

Canajoharie Cr.

Lime Cr.

Sugar Cr.

Sugar Cr.

Sugar Cr.

Duck Cr.

Duck Cr.

Aycocks Cr.

Prairie Cr.

Tucsawhatchee Cr.

Tucsawhatchee Cr.

Monocacy R.

Turtle R.

Shell Cr.

C, SC, SiLC

Maple Cr.

Salt Slough

Pudding R.

Sangamon R.

Lonetree Cr.

Grand R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

irrigation

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

3,103

2,113

2,890

850

1,085

1,445

2,250

2,250

1,795

1,795

5,374

5,374

348

4,617

4,617

499

526

625

1,326

7,603

7,603

7,603

4,302

4,302

2,405

11,787

2,595

2,595

7,562

920

23,521

4,512

25,449

1,375

7,743

19,000

2,356

7,160

Runoff or 

stream (kg)

8.4

34

1.4

1.4

50

107

11

23

0.24

0.030

5.2

9.6

0.19

84

66

0.055

0.17

3.3

0.45

46

61

29

113

8.6

0.70

29

3.6

5.1 

60

0.088

40

212

61

2.3

34

165

9.1

nd

Annual load 

as percent 

of use (%)

0.27

1.6

0.047

0.16

4.6

7.4

0.50

1.0

0.013

0.0017

0.096

0.18

0.054

1.8

1.4

0.011

0.032

0.53

0.034

0.60

0.80

0.38

2.6

0.20

0.029

0.25

0.14

0^20

0.79

0.0096

0.17

4.7

0.24

0.17

0.44

0.87

0.39

nd
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Account

listed in tab.le 1 Continued

»

« 

DJ

1Q>

-3

o 

n>

o>

Basin or 

field plot 

area (ha)

177,400

177,400

177,400

180,400

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

213,100

240,700

269,900

269,900

269,900

269,900

269,900

269,900

269,900

269,900

312,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

575,400

788,000

Row 

crop 

area

26

26

26

37

4

4

4

4

4

4

4

4

4

4

16

29

67

67

67

67

67

67

67

67

66

80

80

80

80

80

80

80

80

80

80

80

17

8

State, 

country, or 

river basin

OH

OH

OH

WI

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

TX

MN

MI

MI

MI

MI

MI

MI

MI

MI

NB

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

NC

VA

Watershed 

name or 

soil type

Grand R.

Grand R.

Grand R.

Milwaukee R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Chambers Cr.

Wild Rice R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

West Fork of the Big Blue R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

TarR.

Shenandoah R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

7,160

7,160

7,160

19,975

5,290

5,290

5,290

5,290

5,290

5,290

5,290

5,290

5,290

5,290

4,800

2,971

55,550

55,550

55,550

55,550

55,550

55,550

55,550

55,550

39,000

109,850

109,850

109,850

109,850

109,850

109,850

109,850

109,850

109,850

109,850

109,850

34,220

19,421

Runoff or 

stream (kg)

23

45

23

20

30

2.4

13

64

68

5.4

50

0.80

86

14

245

0.52

114

211

76

285

113

49

67

65

589

112

111

1,608

1,779

1,066

64

2,473

3,648

639

586

1,719

62

157

Annual load 

as percent 

of use (%)

0.32

0.63

0.32

0.098

0.57

0.045

0.24

1.2

1.3

0.10

0.95

0.015

1.6

0.27

5.1 -

0.018

0.21

0.38

0.14

0.51

0.20

0.089

0.12

0.12

1.5

0.70

0.71

1.5

1.6

0.97

0.058

2.3

3.3

0.58

0.53

1.6

0.18

0.81
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accountin

listed in table 1 Continued

ted DataFromii

a.

t/n

S

a. CD* 

VI

i?

ao'

oL

CD

3D

a

§:

to Surface W<

3

V

Basin or 

field plot 

area (ha)

788,000

911,300

,639,500

,639,500 

,639,500

,639,500 

,639,500

,639,500

,639,500

,639,500

,639,500 

,639,500 

,639,500 

,713,100

2,874,900

2,874,900

2,874,900

2,929,100

2,929,100

2,929,100

2,929,100

3,858,500

6,926,700

7,571,606

7,571,606

7,571,606

9,208,600

10,445,470

10,445,470

10,445,470

16,058,000

16,058,000

16,058,000

22.110,800

22,110,830

22,110,830

22,110,830

22,149,600

Row 

crop 

area

8

9

76

76 

76

76 

76

76

76

76

76 

76 

76 

56

10

10

10

44

44

44

44

80

61

58

58

58

51

5

5

5

6

6

6

21

17

17

17

17

State, 

country, or 

river basin

ND

NY

OH

OH 

OH

OH 

OH

OH

OH

OH

OH 

OH 

OH

MN/ND

OR

OR

OR

IN

IN

IN

IN

MN

IL

OHR.

OHR..

OHR.

MN/ND

OHR.

OHR.

OHR.

OHR.

OHR.

OHR.

MOR.

MOR.

MOR.

MOR.

MOR.

Watershed 

name or 

soil type

Shenandoah R.

Mohawk R.

Maumee R.

Maumee R. 

Maumee R.

Maumee R. 

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R. 

Maumee R. 

Maumee R. 

Red R. of the North above Fargo

Willamette R.

Willamette R.

Willamette R.

White R.

White R.

White R.

White R.

MNR.

ILR.

Wabash R.

Wabash R.

Wabash R.

Red R. of the North at Pembina

TNR.

TNR.

TNR.

OH R. at Greenup Dam, KY

OH R. at Greenup Dam, KY

OH R. at Greenup Dam, KY

Platte R.

Platte R.

Platte R.

Platte R.

Platte R.

Precipitation 

type

rain

rain

rain

rain 

rain

rain 

rain

rain

rain

rain

rain 

rain 

rain 

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

19,421

16,563

504,070

504,070 

504,070

504,070 

504,070

504,070

504,070

504,070

504,070 

504,070 

504,070 

79,243

36,220

36,220

36,220

430,000

534,193

534,193

179,854

510,000

1,800,000

1,798,665

1,798,665

1,798,665

159,364

112,125

112,125

112,125

399,847

399,847

399,847

440,000

1,142,547

1,142,547

1,142,547

1,140,968

Runoff or 

stream (kg)

125

103

1,935

2,457 

1,544

4,873 

3,962

465

6,086

10,710

7,956 

2,801 

9,686 

48

1,111

1,843

479

2,795

4,522

5,852

6,331

3,315

8,640

nd -

42,360

47,748

162

nd

2,278

1,800

nd

8,842

4,395

4,092

30,846

3,322

8,477

3,552

Annual load 

as percent 

of use (%)

0.64

0.62

0.38

0.49 

0.31

0.97 

0.79

0.092

1.2

2.1

1.6 

0.56 

1.9 

0.060

3.1

5.1

1.3 .

0.65

0.85

1.1

3.5

0.65

0.48

nd

2.4

2.7

0.10

nd

2.0

1.6

nd

2.2

1.1

0.93

2.7

0.29

0.74

0.31

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

o>oCD

rs>

V)

e

a> 

-2

o

o 

a>

S

Basin or 

field plot 

area (ha)

22,170,400

22,170,400

22,170,400

22,170,400

25,123,000

25,123,000

25,123,000

40,996,592

40,996,592

40,996,592

44,366,700

44,366,700

44,366,700

52,602,900

52,602,900

52,602,900

52,602,900

83,605,200

83,605,200

83,605,200

135,767,800

135,767,800

135,767,800

135,767,800

184,718,800

184,718,800

184,718,800

184,718,800

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,544

Row 

crop 

area

(%)

24

32

32

32

8

8

8

17

17

17

31

31

31

16

9

9

9

6

6

6

10

7

7

7

18

8

8

8

15

15

15

15

15

15

15

15

15

7

State, 

country, or 

river basin

MSR.

MSR.

MSR.

MSR.

OHR.

OHR.

OHR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

OHR.

OHR.

OHR.

OHR.

MOR.

MOR.

MOR.

MOR.

MOR.

MOR.

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

Watershed 

name or 

soil type

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

OH R. at Cannelton Dam, KY

OH R. at Cannelton Dam, KY

OH R. at Cannelton Dam, KY

AR R. below Little Rock, AR

AR R. below Little Rock, AR

AR R. below Little Rock, AR

MS R. at Grafton, IL

MS R. at Grafton, IL

MS R. at Grafton, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

MO R. at Omaha, NE

MO R. at Omaha, NE

MO R. at Omaha, NE

MO R. at Hermann, MO

MO R. at Hermann, MO

MO R. at Hermann, MO

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS and Atchafalaya R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

1,700,000

2,051,786

2,051,786

2,051,786

1,369,358

1,369,358

1,369,358

590,901

590,901

590,901

7,962,081

7,962,081

7,962,081

3,400,000

3,980,544

3,980,544

3,980,544

1,569,734

1,569,734

1,569,734

3,500,000

5,210,157

5,210,157

5,210,157

11,000,000

13,671,569

13,671,569

13,671,569

16,000,000

16,000,000

1 6,000,000

16,000,000

16,000,000

16,000,000

16,000,000

16,000,000

16,000,000

19,757,464

Runoff or 

stream (kg)

7,650

14,430

8,251

5,817

24,076

33,006

18,523

658

3,341

2,334

nd

51,128

81,104

23,120

89,731

156,774

127,964

11,645

6,621

5,590

25,900

55,596

29,965

41,573

58,300

162,604

69,945

125,638

128,000

25,600

212,800

76,000

215,000

125,000

161,000

240,000

178,000

305,868

Annual load 

as percent 

of use (%)

0.45

0.70

0.40

0.28

1.8

2.4

1.4

0.11

0.57

0.40

nd

0.64

1.0

0.68

2.3

3.9

3.2

0.74

0.42

0.36

0.74

1.1

0.58

0.80

0.53

1.2

0.51

0.92

0.80

0.16

1.3

0.48

1.3

0.78

1.0

1.5

1.1

1.5
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Account

listed in table 1 Continued

3

V)

I 

n

CD

i(D

5

Basin or 

field plot 

area (ha)

315,621,544

315,621,544

Row 

crop 

area

(%)

7

7

State, 

country, or 

river basin

MSR.

MSR.

Watershed 

name or 

soil type

MS and Atchafalaya R.

MS and Atchafalaya R.

Precipitation 

type

rain

rain

Mass use

Basin (kg)

19,757,464

19,757,464

Runoff or 

stream (kg)

262,237

246,464

Annual load 

as percent 

of use (%)

1.3

1.2

METRIBUZIN

0.0041

0.0041

0.0081

0.0081

0.0081

0.0081

0.008)

0.0081

0.0081

0.0081

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

_0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088 .

0.0088

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

WA

WA

WA

WA

WA

WA

WA

WA

WA

WA

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

0.0018

0.0018

0.0035

0.0041

0.0045

0.0035

0.0041

0.0044

0.0045

0.0045

0.0035

0.0035

0.0035

0.0035

0.0035

0.0035

0.0035

0.0035

0.0035

0.0037

0.0037

0.0037

0.0037

0.0037

0.0037

0.0037

0.0037

0.0037

0.0037

0.0037

0.0037

0.0035

0.0035

0.0035

0.000073

0.00010

0.00018

0.000019

0.000019

0.0001 1

0.0000020

0.0000037

0.000017

0.0000047

0.000060

0.000056

0.000032

0.000049

0.000077

0.000053

0.000032

0.000028

0.000049

0.000030

0.000022

0.000026

0.000067

0.000041

0.000033

0.000015

0.00023

0.000044

0.000018

0.00029

0.00044

0.000025

0.000018

0.000025

4.0

5.2

5.1

0.45

0.41

3.2

0.050

0.085

0.37

0.10

1.7

1.6

0.90

1.4

2.2

1.5

0.90

0.80

1.4

0.80

0.60

0.70

1.8

1.1

0.90

0.40

6.1

1.2

0.50

7.8

12

0.70

0.50

0.70
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

£5"

2: Summary ol

o 

S

Basin or 

field plot 

area (ha)

0.0088 

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.0088

0.016

0.016

0.016

0.016

0.016

0.016

0.016

0.016

0.016

0.016

iO.016

10.039

0.039

0.039

0.039

0.039

0.039

0.039

0.039

0.04

0.04 

0.04 

0.04 

0.04

0.04 

0.10

0.10

Row 

crop 

area

100 

100

100

100

100

100

100

100

100

100

100

100

100

100

100.

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100 

100 

100 

100

100 

100

100

State, 

country, or 

river basin

MS 

MS

MS

MS

MS

MS

MS

MS

MS

MS

MS

WA

WA

WA

WA

WA

WA

WA

WA

KY

KY

KY

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH 

OH 

OH 

OH

OH 

Ontario

Ontario

Watershed 

name or 

soil type

SiC 

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC

SiC 

SiC 

SiC 

SiC

SiC 

CL

CL

Precipitation 

type

ram, sim 

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain, sim

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain 

rain 

rain 

rain

rain 

rain

rain

Mass use

Basin (kg)

0.0035 

0.0035

0.0035

0.0035

0.0035

0.0037

0.0037

0.0037

0.0037

0.0037

0.0037

0.0072

0.0072

0.0078

0.0090

0.0090

0.0090

0.0083

0.0090

0.024

0.024

0.024

0.023

0.023

0.023

0.023

0.023

0.023

0.023

0.023

0.017

0.022 

0.022 

0.017 

0.022

0.022 

0.050

0.050

Runoff or 

stream (kg)

0.000049 

0.000077

0.000021

0.000067

0.000021

0.000037

0.000055

0.000033

0.000085

0.00025

0.000078

0.00024

0.00028

0.000018

0.0000027

0.000091

0.000001 1

0.0000078

0.0000037

0.00020

0.00015

0.0000024

0.000012

0.000012

0.000035

0.0000023

0.000049

0.000089

0.00061

0.000063

0.000012

0.000020 

0.000035 

0.000051 

0.000090

0.00027 

0.0001 1

0.0001 1

Annual load 

as percent 

of use (%)

1.4

2.2

0.60

1.9

0.60

1.0

1.5

0.90

2.3

6.8

2.1

3.3

3.8

0.23

0.031

1.0

0.013

0.094

0.041

0.85

0.64

0.010

0.052

0.050

0.15

0.010

0.21

0.38

2.6

0.27

0.074

0.088 

0.16 

0.31 

0.40

1.2 

0.22

0.22
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

ted DataFromU

a.

e

a. 

to'

CO

»

If

tO

3D 

C

o

to Surface W

ST

3

Basin or 

field plot 

area (ha)

0.20

0.20

0.55

0.55 

0.59

0.59

0.68

0.68

0.79

0.79

2.1 

2.1 

2. 

2.

2.

2.

2.

5.0

5.6

6.4

3,900

5,055

14,600

37,700

47,072

143,000

177,400

177,400

177,400

177,400

183,100

183,100

183,100

183,100

183,100

183,100

183,100

183,100

Row 

crop 

area

100

100

100

100 

100

100

100

100

. 100

100

100 

100 

100 

100

100

100

100

100

100

100

46

75

55

40

51

83

26

26

26

26

4

4

4

4

4

4

4

4

State, 

country, or 

river basin

MS

MS

OH

OH 

OH

OH

OH

OH

OH

OH

MS 

MS 

MS 

MS

MS

MS

MS

IA

IA

IA

OR

IA

WA

WA

Ontario

IL

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

Watershed 

name or 

soil type

SL

SL

fine Si

fine Si 

fine L

fineL

fineL

fineL

fineL

fine L

SiL 

SiL 

SiL 

SiL

SiL

SiL

SiL

SiL

SiL

SiL

Zollner Cr.

Four-Mile Cr. (SiL)

Crab Cr. Lateral

El 68 Wasteway

average of 1 1 rivers (C, L, S)

Sangamon R.

Grand R.

Grand R.

Grand R.

Grand R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Cuyahoga R.

Precipitation 

type

NA

NA

rain

rain 

rain

rain

rain

rain

rain

rain

rain 

rain 

rain 

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

0.11

0.11

1.8

1.8 

2.0

1.3

2.3

1.5

2.7

1.8

0.88 

0.88 

0.88 

0.88

0.88

0.88

0.88

2.8

3.1

3.6

52

2,831

485

605

1,012

4,200

620

620

620

620

410

410

410

410

410

410

410

410

Runoff or 

stream (kg)

0.0024

0.0010

0.00018

0.0000037 

0.000012

0.010

nd

0.00030

0.0021

0.0039

0.034 

0.20 

0.013 

0.00035

0.17

0.044

0.002

0.020

0.023

0.016

0.86

1.1

0.15

1.0

0.54

6.7

0.020

10

nd

nd

14

8.2

0.10

47

5.7

nd

11

106

Annual load 

as percent 

of use (%)

2.1

0.90

0.030

0.00020 

0.00060

0.79

nd

0.020

0.080

0.22

3.9 

23 

1.5 

0.040

20

5.0

0.20

0.72

0.72

0.45

1.7

0.040

0.030

0.17

0.053

0.16

0.0032

1.6

nd

nd

3.3

2.0

0.024

11

1.4

nd

2.8

26
Table 2. Summary of data from the scientific literature, the.National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

ga"

V)

e

0)

-2

o

tu

S

Basin or 

field plot 

area (ha)

183,100

183,100

229,400

269,900

269,900

269,900

269,900

269,900

269,900

269,900

269,900

312,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

324,000

1,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

,639,500

2,929,100

3,858,500

6,926,700

22,110,800

Row 

crop 

area

.4

4

22

67

67

67

67

67

67

67

67

66

80

80

80

80

80

80

80

80

80

80

80

76

76

76

76

76

76

76

76

76

76

76

44

80

61

21

State, 

country, or 

river basin

OH

OH

ID

MI

MI

MI

MI

MI

MI

MI

MI

NB

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

IN

MN

IL

MOR.

Watershed 

name or 

soil type

Cuyahoga R.

Cuyahoga R.

Teton R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

Raisin R.

West Fork of the Big Blue R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Sandusky R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

Maumee R.

White R.

MNR.

ILR.

Plane R.

Precipitation 

type

ram

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

410

410

3,913

8,630

8,630

8,630

8,630

8,630

8,630

8,630

8,630

1,900

22,820

22,820

22,820

22,820

22,820

22,820

22,820

22,820

22,820

22,820

22,820

101,150

101,150

101,150

101,150

101,150

101,150

101,150

101,150

101,150

101,150

101,150

54,000

32,000

140,000

38,000

Runoff or 

stream (kg)

50

nd

nd

89

21

22

220

230

0.40

6.9

0.30

35

217

93

274

414

208

1.80

224

540

128

120

242

1,179

1,478

662

2,085

634

62

689

2,144

1,612

456

1,903

124

74

294

87

Annual load 

as percent 

of use (%)

12

nd

nd

1.0

0.24

0.25

2.5

2.7

0.0046

0.080

0.0035

1.8

0.95

0.41

1.2

1.8

0.91

0.0079

0.98

2.4

0.56

0.53

1.1

1.2

1.5

0.65

2.1

0.63

0.061

0.68

2.1

1.6

0.45

1.9

0.23

0.23

0.21

0.23
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Account

listed in table 1 Continued

ited DataFrom

313"

cZ

B

O.

~'

S

 o

CD

Basin or 

field plot 

area (ha)

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

Row 

crop 

area

24

16

10

18

15

State, 

country, or 

river basin

MSR.

OHR.

MOR.

MSR.

MSR.

Watershed 

name or 

soil type

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

Precipitation 

type

ram

rain

rain

rain

rain

Mass use

Basin (kg)

72,000

400,000

210,000

610,000

1,300,000

Runoff or 

stream (kg)

65

1,640

693

610

4,680

Annual load 

as percent 

of use (%)

0.090

0.41

0.33

0.10

0.36

1; MOLINATE

to

30 

3

S

00

e 

3.

at 

n

CD

$

3

3

2,700

93,542

122,400

35

44

CA

Greece

CA

Orestimba Cr.

C, SC, SiLC

Salt Slough

rain

irrigation

rain

78

7,708

1,462

0.10

748

32

0.13

9.7

2.2

NAPROPAMIDE

2,700

3,900

122,400

35

46

44

CA

OR

CA

Orestimba Cr.

Zollner Cr.

Salt Slough

rain

rain

rain

53

59

1,597

0.53

1.3

0.60

1.0

2.2

0.038

PARATHION

60

60

60

60

60

60

90

284

16,100

27,300

3,858,500

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

100

100

100

100

100

100

NA '

40

30

24

80

21

24

16

10

18

15

CA

CA

CA

CA

CA

CA

Germany

Italy

GA

GA

MN

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

fine textured

fine textured

fine textured

fine textured

fine textured

fine textured

OhebachR.

Cesena Basin

Lime Cr.

Ay cocks Cr.

MNR.

Platte R."

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

irrigation

irrigation

irrigation

irrigation

irrigation

irrigation

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

50

252

67

124

151

17

0.91

14

342

536

3,300

110,000

4,300

80

360,000

580,000

650,000

0.0100

1.1

0.34

0.39

0.51

0.010

nd

0.18

nd

nd

nd

nd

nd

nd

nd

nd

nd

0.020

0.44

0.51

0.31

0.34

0.060

nd

1.3

nd

nd

nd

nd

nd

nd

nd

nd

nd

PEBULATE

2,700

3,500

35

18

CA

NO

Orestimba Cr.

Devils Cradle Cr.

rain

rain

29

69

0.86

0.00019

3.0

0.00027
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

Basin or 

field plot 

area (ha)

4,400

122,400

575,400

Row 

crop 

area

(%)

40

44

17

State, 

country, or 

river basin

NC

CA

NC

Watershed 

name or 

soil type

Pete Mitchell Swamp

Salt Slough

TarR.

Precipitation 

type

ram

rain

rain

Mass use

Basin (kg)

77

1,548

6,882

Runoff or 

stream (kg)

nd

0.55

nd

Annual load 

as percent 

of use (%)

nd

0.035

nd

PENDIMETHALIN

0.001

0.001

0.001

0.001

0.003

0.012

2,700

3,500

3,700

3,900

4,400

11,600

11,600

13,300

13,300

14,100

14,100

14,600

14,600

14,600

15,500

16,100

24,600

24,600

24,600

24,700

24,700

27,300

36,400

42,000

42,000

45,700

56,600

100

100

100

100

100

100

35

18

21

46

40

28

28

47

47

49

49

55

87

87

19

30

76

76

76

49

49

24

63

30

30

25

56

Greece

Greece

Greece

Greece

GA

PA

CA

NC

VA

OR

NC

PA

PA

WI

WI

PA

PA

WA

IN

IN

NY

GA

IN

IN

IN

WI

WI

GA

NE

GA

GA

MD

MN

SCL

SCL

SCL

SCL

CL

C

Orestimba Cr.

Devils Cradle Cr.

Muddy Cr.

Zollner Cr.

Pete Mitchell Swamp

East Mahantango Cr.

East Mahantango Cr.

North Branch Milwaukee R.

North Branch Milwaukee R.

Mill Cr.

Mill Cr.

Crab Cr. Lateral

Kessinger Ditch

Kessinger Ditch

Canajoharie Cr.

Lime Cr.

Sugar Cr.

Sugar Cr.

Sugar Cr.

Duck Cr.

Duck Cr.

Aycocks Cr.

Prairie Cr.

Tucsawhatchee Cr.

Tucsawhatchee Cr.

Monocacy R.

Snake R.

rain

rain

rain

rain

sim

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

0.0015

0.0015

0.0015

0.0015

0.0051

0.020

45

73

74

90

281

581

581

505

505

1,717

1,717

328

1,508

1,508

1,301

995

2,714

2,714

2,714

1,293

1,293

1,809

625

3,687

3,687

1,661

676

0.00000065

0.00000072

0.00000078

0.00000087

0.00000051

nd

0.025

0.0035

nd

0.0082

0.011

0.060

0.18

0.019

nd

0.090

0.27

0.14

0.63

0.53

nd

0.015

0.15

nd

0.12

0.16

0.0085

nd

0.025

nd

nd

0.015

nd

0.043

0.048

0.052

0.058

0.010

nd

0.055

0.0048

nd

0.0091

0.0041

0.010

0.030

0.0038

nd

0.0052

0.016

0.042

0.042

0.035

nd

0.0015

0.0056

nd

0.0045

0.012

0.00066

nd

0.0040

nd

nd

0.00093

nd
60 Selected DaaFrom

2!

a.

V*

£

o. CD* 

CO

 o

CD

ST

CD

3D

3

00

e 

3-

to 

n

CD

£

CD

5

Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the 

listed in table 1 Continued

Basin or 

field plot 

area (ha)

65,800

76,200

95,500

122,400

126,100.

180,400

240,700

575,400

911,300

1,713,100

2,929,100

2,929,100"

2,929,100

2,929,100

3,858,500

6,926,700

7,571,606

7,571,606

7,571,606

9,208,600

22,110,800

22,170,400

22,170,400

22,170,400

22,170,400

25,123,000

25,123,000

25,123,000

44,366,700

44,366,700

44,366,700

52,602,900

52,602,900

52,602,900

52,602,900

135,767,800

184,718,800

184,718,800

Row 

crop 

area

66

70

68

44

22

37

29

17

9

56

44

44

44

44

80

61

58

58

58

51

21

24

32-

32

32

8

8

8

31

31

31

16

9

9

9

10

18

8

State, 

country, or 

river basin

ND

NE

NE

CA

OR

WI

MN

NC

NY

ND

IN

IN

IN

IN

MN

IL

OHR.

OHR.

OHR.

MN/ND

MOR.

MSR.

MSR.

MSR.

MSR.

OHR.

OHR.

OHR.

MSR.

MSR.

MSR.

OHR.

OHR.

OHR.

OHR.

MOR.

MSR.

MSR.

Watershed 

name or 

soil type

Turtle R.

Shell Cr.

Maple Cr.

Salt Slough

Pudding R.

Milwaukee R.

Wild Rice R.

TarR.

Mohawk R.

Red R. of the North above Fargo

White R.

White R.

White R.

White R.

MNR.

ILR.

Wabash R.

Wabash R.

Wabash R.

Red R. of the North at Pembina

Platte R.

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

OH R. at Cannelton Dam, KY

OH R. at Cannelton Dam, KY

OH R. at Cannelton Dam, KY

MS R. at Grafton, IL

MS R. at Grafton, IL

MS R. at Grafton, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Thebes, IL

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

National Stream-Quality Accountin

Mass use

Basin (kg)

761

2,893

4,344

5,026

1317

5,872

2,722

16,420

34,222

57,793

41,000

168,230

168,230

30,602

160,000

290,000

678,255

678,255

678,255

130,463

92,000

330,000

732,776

732,776

732,776

353,432

353,432

353,432

2,785,536

2,785,536

2,785,536

480,000

1,331,621

1,331,621

1,331,621

810,000

2,100,000

4,273,561

Runoff or 

stream (kg)

nd

0.85

2.6

nd

0.10

0.68

nd

0.34

nd

nd

25

17

27

nd

nd

nd

nd

57

165

nd

nd

nd

nd

nd

nd

50

53

22

nd

nd

202

nd

nd

224

438

81

nd

nd

Annual load 

as percent 

of use (%)

nd

0.029

0.061

nd

0.0078

0.012

nd

0.0021

nd

nd

0.060

0.010

0.016

nd

nd

nd

nd

0.0084

0.024

nd

nd

nd

nd

nd

nd

0.014

0.015

0.0061

nd

nd

0.0073

nd

nd

0.017

0.033

0.010

nd

nd

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

Basin or

field plot

area (ha)

184,718,800

184,718,800

315,621,500

315,621,544

315,621,544

315,621,544

Row

crop

3 red

i%)

8

8

15

7

7

7

State.

country, or

river basin

MSR. 

MSR.

MSR.

MSR.

MSR.

MSR.

Watershed

name or

soil type

MS R. at Thebes, 1L

MS R. at Thebes, 1L

MS R. at Baton Rouge, LA

MS and Atchafalaya R.

MS and Atchafalaya R.

MS and Atchafalaya R.

Precipitation

type

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

4,273,561

4,273,561

3,700,000

6,599,144

6,599,144

6,599,144

Runoff or

stream (kg)

nd

535

nd

1,261

1,416

158 .

Annual load

as percent

of use {%)

nd

0.013

nd

0.019

0.021

0.0024

0.055

0.055

60

60

60

60

60

60

2,700

100

100

100

100

100

100

100

100

35

g55" 

to 

e/»

jmmary of

a 

S

4,400

14,600

16,100

24,700

24,700

27,300

36,400

37,700

42,000

42,000

65,800

229,400 

2,929,100

6,926,700 

22,110,800 

22,170,400

52,602,900 

135,767,800

184,718,800

PERMETHRIN

LA SiCL

LA SiCL

CA fine textured

CA fine textured

CA fine textured

CA fine textured

CA fine textured

CA fine textured

CA Orestimba Cr.

NC Pete Mitchell Swamp

WA Crab Cr. Lateral

GA Lime Cr.

WI Duck Cr.

WI Duck Cr.

GA Aycocks Cr.

NE Prairie Cr.

WA El 68 Wasteway

GA Tucsawhatchee Cr.

GA Tucsawhatchee Cr.

ND Turtle R.

ID Teton R.

IN White R.

IL IL R.

MO R. Platte R.

MS R. MS R. at Clinton, IA

OH R. OH R. near Grand Chain, IL

MO R. MO R. at Hermann, MO

MS R. MS R. at Thebes, IL

rain

rain

irrigation 

irrigation 

irrigation 

irrigation 

irrigation 

irrigation

rain

0.0062

0.0062

43

31

73

6.0

31

36

45

0.000000031

0.0000018

0.068

nd

0.020

nd

nd

0.032

nd

0.00050

0.029

0.160

nd

0.028

nd

nd

0.090

nd

PHORATE

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain 

rain

63

318

397

255

255

480

378

388

1,186

1,186

778

11,068

520

670

47,000

320

6,600

100,000

120,000

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd 

nd
S Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Account

listed in table 1 Continued

Basin or 

field plot 

area (ha)

Row 

crop 

area

State, 

country, or 

river basin

Watershed 

name or 

soil type

Mass use . . . . 

 ... Annual load

Precipitation A 

HO* D n. v Runoff or as percent 

type Basm(kg) ^amfrg) ofuse(%)

315,621,500

3,900

93,542

2,700

15

46

MS R. MS R. at Baton Rouge, LA

OR Zollner Creek

ram 190,000

PRONAMIDE

rain 66

PROPACHLOR

nd nd 

0.013 0.020 

0.002

0.002

0.002

0.002

0.3

0.3

0.3

1.0

5.0

6.4

7.6

5,055

36,400

76,200

95,500

3,858,500

6,926,700

22,110,800

22,170,400

22,170,400

44,366,700

44,366,700

52,602,900

135,767,800

184,718,800

315,621,500

100

100

100

100

100

100

100

100

100

100

100

75

63

70

68

80

61

21

24

32

31

31 ,

16

10

18

15

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

NE

NE

NE

MN

IL

MOR.

MSR.

MSR.

MSR.

MSR.

OHR.

MOR.

MSR.

MSR.

SL

SL

SL

SL

SiS

SiS

SiS

SiL

SiL

SiL

SiL

Four-Mile Cr. (SiL)

Prairie Cr.

Shell Cr.

Maple Cr.

MNR.

ILR.

Platte R.

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Grafton, IL

MS R. at Grafton, IL

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

sim

sim

sim

sim

sim

sim

sim

NA

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

0.0038

0.0038

0.0038

0.0038

0.75

0.75

0.75

6.7

11

14

17

11,323

956

1,616

1,850

22,000

35,000

70,000

66,000

222,771

515,804

515,804

19,000

1,100,000

1,400,000

1,800,000

0.00023

0.00010

0.000076

0.000029

0.0019

0.00045

0.00015

0.21

0.024

0.036

0.036

16

0.18

0.93

0.79

440

32

63

nd

nd

nd

38

1.9

2,200

700

nd

6.1

2.8

2.0

0.76

0.25

0.060

0.020

3.1

0.22

0.25

0.21

0.14

0.019

0.058

0.043

2.0

0.090

0.090

nd

nd

nd

0.0073

0.010

0.20

0.050

nd

Greece C, SC, SLC

35 CA Orestimba Cr.

PROPANIL

irrigation 2,527

PROPARGITE

rain 926

162

52

6.4 

5.6 
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

Basin or 

field plot 

area (ha)

3,900

14,600

16,100

27,300

37,700

42,000

42,000

45,700

122,400

126,100

361,900

361,900

638,000

1,902,400

2,929,100

3,858,500

6,926,700

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

Row 

crop 

area

(%)

46

55

30

24

40

30

30

25

44

22

4

4

52

10

44

80

61

21

24

16

10

18

15

State, 

country, or 

river basin

OR

WA

GA

GA

WA

GA

GA

MD

CA

OR

CA

CA

WA

CA

IN

MN

IL

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

Watershed 

name or 

soil type

Zollner Cr.

Crab Cr. Lateral

Lime Cr.

Aycocks Cr.

El 68 Wasteway

Tucsawhatchee Cr.

Tucsawhatchee Cr.

Monocacy R.

Salt Slough

Pudding R.

Merced R.

Merced R.

Palouse R.

San Joaquin R.

White R.

MNR.

ILR.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

264

820

242

467

862

521

521

1,558

23,324

3,829

13,141

13,141

9,168

124,407

11,000

47,000

73,000

66,000

64,000

130,000

300,000

490,000

800,000

Runoff or 

stream (kg)

nd

0.50

nd

nd

36

0.41

nd

nd

1.6

nd

1.7

1.8

nd

261

6.6

nd

nd

nd

51

nd

150

nd

nd

Annual load 

as percent 

of use (%}

nd

0.061

nd

nd

4.2

0.080

nd

nd

0.0070

nd

0.013

0.014

nd

0.21

0.060

nd

nd

nd

0.080

nd

0.050

nd

nd

SIMAZINE

0.12

0.26

0.26

0.26

0.26

0.26

0.26

0.26

0.26

0.26

0.26

0.34

0.37

100

100

100

100

100

100

100

100

100

100

100

100

100

France

MD

MD

MD

PA

PA

PA

PA

PA

PA

PA

France

MD

SiL

L

L

L

SiCL

SiCL

SiCL

SiCL

SiCL

SiCL

SiCL

SiL

L

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

0.060

0.57

0.57

0.57

0.44

0.44

0.44

0.44

0.44

0.44

0.44

0.10

0.81

0.00075

0.0021

nd

nd

0.0027

0.0023

0.00013

nd

0.00080

nd

nd

0.00081

0.0042

1.3

0.36

nd

nd

0.62

0.51

0.030

nd

0.18

nd

nd

0.79

0.52
S Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

ted DataFrom

Tl

si

a.

0.

CA

 o

CD

ao'

EL

CD

30

O

S

V)

C

3,

n

CD

$

S

35

Basin or 

field plot 

area (ha)

0.37

0.37

.0

.0

.0

.0

.0

.0

.0

.0

.0

1.0

2.7

118

2,700

3,700

3,900

11,600

11,600

14,100

14,100

16,000

45,700

47,072

93,542

122,400

126,100

143,000

399,840

399,840

679,000

679,000

1,902,400

2,929,100

3,858,500

6,926,700

7,571.606

7,571,606

Row 

crop 

area

100

100

100

100

100

100

100

100

100

100

100

100

100

0

35

21

46

28

28

49

49

95

25

51

NA

44

22

83

47

47

54

54

10

44

80

61

58

58

State, 

country, or 

river basin

MD

MD

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

OH

Japan

CA

VA

OR

PA

PA

PA

PA

England

MD

Ontario

Greece

CA

OR

IL

Ontario

Ontario

Ontario

Ontario

CA

IN

MN

IL

OHR.

OHR.

Watershed 

name or 

soil type

L

L

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

golf course

Orestimba Cr.

Muddy Cr.

Zollner Cr.

East Mahantango Cr.

East Mahantango Cr.

Mill Cr.

Mill Cr.

R. Granta (C)

Monocacy R.

average of 1 1 rivers (C, L, S)

C, SC, SiLC

Salt Slough

Pudding R.

Sangamon R.

Saugeen R.

Saugeen R.

Grand R.

Grand R.

San Joaquin R.

White R.

MNR.

ILR.

Wabash R.

Wabash R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

NA

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

irrigation

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

0.81

0.81

1.7

2.2

3.4

4.5

2.2

1.1

1.1

4.5

2.2

1.8

6.0

12

178

47

110

152

152

444

444

739

1,810

1,389

7,760

8,722

2,317

1,900

100

100

1,240

1,240

26,790

9,500

960

67,000

88,394

88,394

Runoff or 

stream (kg)

0.0000033

0.0000051

0.035

0.085

nd

0.076

0.12

0.00067

0.00045

0.0031

0.0063

0.0025

0.21

0.12

4.8

0.90

7.4

1.1

2.7

15

44

4.7

26

0.97

23

5.8

71

6.8

0.35

2.8

14

36

206

475

50

650

nd

6,022

Annual load 

as percent 

of use (%)

0.00041

0.00063

2.1

3.8

nd

1.7

5.4

0.06

0.04

0.07

0.28

0.14

3.5

1.0

2.7

1.9

6.7

0.73

1.8

3.5

9.9

0.64

1.4

0.070

0.30

0.066

3.1

0.36

0.35

2.8

1.1

2.9

0.77

5.0

5.2

0.97

nd

6.8
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accou

listed in table 1 Continued

Basin or 

field plot 

area (ha)

7,571,606

22,110,800

22,170,400

52,602,900

135,767,800

184,718,800

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

315,621,500

Row 

crop 

area

(%)

58

21

24

16

10

18

15

15

15

15

15

15

15

15

15

State, 

country, or 

river basin

OHR.

MOR.

MSR.

OHR.

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MS R.

Watershed 

name or 

soil type

Wabash R.

Platte R.

MS R. at Clinton, IA

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

MS R. at Baton Rouge, LA

Precipitation 

type

ram

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

88,394

4,600

3,900

220,000

52,000

170,000

460,000

460,000

460,000

460,000

460,000

460,000

460,000

460,000

460,000

Runoff or 

stream (kg)

8,363

110

410

8,580

728

2,720

10,120

5,980

68,080

16,000

54,000

25,000

45,000

37,000

23,000

Annual load 

as percent 

of use (%)

9.5

2.4

11

3.9

1.4

1.6

2.2

1.3

15

12

5.4

9.8

8.0

5.0

12

TERBACIL

14,600 55 WA Crab Cr. Lateral rain 249 1.8 0.73 

TERBUFOS

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

0.003

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

IL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

SiL

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

sim

0.0098

0.0098

0.0098

0.0098

0.0098

0.0034

0.0098

0.0098

0.0098

0.0098

0.0034

0.0034

0.0034

0.0034

0.0034

0.0034

0.0034

0.0034

0.00015

0.00036

0.000059

0.000068

0.000010

0.00027

0.00013

0.00026

0.000020

0.000049

0.000020

0.000010

0.000013

0.0000034

0.000020

0.0000067

0.000040

0.0000034

1.5

3.7

0.60

0.70

0.10

7.9

1.3

2.7

0.20

0.50

0.60

0.30

0.40

0.10

0.60

0.20

1.2

0.10
§> Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

ited DataFrom

Tl 5'

0.

tff

c

0.

to'

(A

-Q 

(D

a

oj

CD

3D 

3

s

e 

0.

01 

n

n

sO)

53

Basin or 

field plot 

area (ha)

3,700

4,400

13,300

13,300

14,100

14,100

14,600

14,600

15,500

24,600

24,600

24,600

24,700

24,700

36,400

56,600

62,300

65,800

76,200

95,500

147,300

180,400

213,100

788,000

788,000

911,300

1,713,100

2,929,100

2,929,100

2,929,100

2,929,100

3,858,500

6,926,700

7,571,606

7,571,606

7,571,606

9,208,600

22,110,800

Row 

crop 

area

21

40

47

47

49

49

87

87

19

76

76

76

49

49

63

56

12

66

70

68

15

37

16

8

8

9

56

44

44

44

44

80

61

58

58

58

51

21

State, 

country, or 

river basin

VA

NC

WI

WI

PA

PA

IN

IN

NY

IN

IN

IN

WI

WI

NE

MN

ID

ND

NE

NE

CO

WI

TX

VA

ND

NY

MN/ND

IN

IN

IN

IN

MN

IL

OHR.

OHR.

OHR.

MN/ND

MOR.

Watershed 

name or 

soil type

Muddy Cr.

Pete Mitchell Swamp

North Branch Milwaukee R.

North Branch Milwaukee R.

Mill Cr.

Mill Cr.

Kessinger Ditch

Kessinger Ditch

Canajoharie Cr.

Sugar Cr.

Sugar Cr.

Sugar Cr.

Duck Cr.

Duck Cr.

Prairie Cr.

Snake R.

RockCr.

' Turtle R.

Shell Cr.

Maple Cr.

Lonetree Cr.

Milwaukee R.

Chambers Cr.

Shenandoah R.

Shenandoah R.

Mohawk R.

Red R. of the North above Fargo

White R.

White R.

White R.

White R.

MNR.

ILR.

Wabash R.

Wabash R.

Wabash R.

Red R. of the North at Pembina

Platte R.

Precipitation 

type

ram

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

138

120

230

230

146

146

353

353

517

562

562

562

591

591

2,222

976

673

729

4,269

4,434

4,608

2,635

2,532

8,947

8,947

13,551

19,912

42,000

41,283

41,283

41,283

56,000

150,000

152,324

152,324

152,324

109,270

260,000

Runoff or 

stream (kg)

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

0.0088

nd

nd

nd

nd

nd

nd

nd

0.0010

0.43

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

28

nd

nd

nd

nd

nd

nd

Annual load 

as percent 

of use (%)

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

0.0016

nd

nd

nd

nd

nd

nd

nd

0.000023

0.0094

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

0.050

nd

nd

nd

nd

nd

nd
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

Basin or 

field plot 

area (ha)

22,110,830

22,110,830

22,110,830

22,149,600

22,170,400

22,170,400

22,170,400

22,170,400

44,366,700

44,366,700

44,366,700

52,602,900

135,767,800

184,718,800

184,718,800

184,718,800

184,718,800

315,621,500

Row 

crop 

area

(%)

17

17

17

17

24

32

32

32

31

31

31

16

10

18

8

8

8

15

State, 

country, or 

river basin

MOR.

MOR.

MOR.

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

OHR.

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

Watershed 

name or 

soil type

Platte R.

Platte R.

Platte R.

Platte R.

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Grafton, IL

MS R. at Grafton, IL

MS R. at Grafton, IL

OH R. near Grand Chain, IL

MO R. at Hermann, MO

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

308,697

308,697

308,697

304,21 1

130,000

218,254

218,254

218,254

832,202

832,202

832,202

280,000

640,000

1,300,000

1,759,688

1,759,688

1,759,688

2,000,000

Runoff or 

stream (kg)

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

Annual load 

as percent 

of use (%)

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

THIOBENCARB

(no studies found)

TRIALLATE

14,600

37,700

56,600

65,800

118,800

229,400

240,700

638,000

1,713,100

9,208,600

55

40

56

66

39

22

29

52

56

51

WA

WA

MN

ND

WA

ID

MN

WA

MN/ND

MN/ND

Crab Cr. Lateral

El 68 Wasteway

Snake R.

Turtle R.

CrabCr.

Teton R.

Wild Rice R.

Palouse R.

Red R. of the North above Fargo

Red R. of the North at Pembina

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

417

1,117

1,786

2,108

4,237

4,451

4,163

31,984

25,647

218,425

nd

nd

0.76

0.096

0.75

1.7

7.9

32

6.7

65

nd

nd

0.042

0.0045

0.018

0.039

0.19

0.10

0.026

0.030

TRIFLURALIN

0.0017

0.0017

. 0.0017

100

100

100

NC

NC

NC

LS

LS

SL

NA

NA

NA

0.0019

0.0019

0.0019

0.0000091

0.0000051

0.0000088

0.48

0.27

0.46
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Account

listed in table 1 Continued

ted DataFrom

31

2.

CL

e/j

c

eu A'

M

I?

ao'

5!

A

30

O

s

CO

1

o

A

g

Q>

3

Basin or 

field plot 

area (ha)

0.0017

0.045

0.045

0.045

0.20

0.20

0.20

0.20

0.20

0.20

0.20

0.34

0.34

1.26

1.26

1.3

1.3

1.4

2.0

2.0

2.7

2.7

2.71

2.71

6.0

18.7

18.7

18.7

18.7

18.7

18.7

60

60

2,700

3,900

4,400

13,300

13,300

Row 

crop 

area

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

100

35

46

40

47

47

State, 

country, or 

river basin

NC

LA

LA

LA

MS

MS

LA

LA

LA

MS

MS

GA

GA

GA

GA

GA

GA

OR

SC

SC

GA

GA

GA

GA

OR

MS

MS

MS

MS

MS

MS

CA

CA

CA

OR

NC

WI

WI

Watershed 

name or 

soil type

SL

SiCL

SiCL

SiCL

SL

SL

SiCl

SiCl

SiCl

SiL

Sil

LS

LS

SL/SC

SL/SC

NA

NA

NA

landscape fabric/plastic sheet

landscape plastic/plastic sheet

NA

NA

SL

SL

NA

SiL

SiL

SiL

SiL

SiL

SiL

fine textured

fine textured

Orestimba Cr.

Zollner Cr.

Pete Mitchell Swamp

North Branch Milwaukee R.

North Branch Milwaukee R.

Precipitation 

type

NA

rain

rain

rain

NA

NA

NA

NA

NA

NA

NA

rain, sim

rain, sim

NA

NA

rain

rain

rain

irrigation

irrigation

rain

rain

NA

NA

rain

rain

rain

rain

rain

rain

rain

irrigation

irrigation

rain

rain

rain

rain

rain

Mass use

Basin (kg)

0.0019

0.063

0.063

0.063

0.17

0.17

0.28

0.28

0.28

0.22

0.22

0.38

0.38

1.4

1.4

1.5

1.5

1.2

5.4

5.4

3.0

3.0

3.0

3.0

5.0

21

21

21

21

21

21

66

58

198

112

188

141

141

Runoff or 

stream (kg)

0.000014

0.0000025

nd

0.00025

0.00020

0.00007

nd

nd

0.0001 1

0.00040

0.00040

0.00065

0.0001 1

0.0028

0.0034

0.0029

0.0029

nd

0.016

0.060

0.0030

0.0091

0.0036

0.0079

0.045

0.036

0.0021

0.044

0.027

0.025

0.042

0.19

0.081

1.1

0.061

0.030

nd

nd

Annual load 

as percent 

of use (%)

0.76

0.0040

nd

0.40

0.12

0.040

nd

nd

0.040

0.18

0.18

0.17

0.030

0.20

0.24

0.20

0.20

nd

0.30

1.1

0.10

0.30

0.12

0.26

0.90

0.17

0.010

0.21

0.13

0.12

0.20

0.29

0.14

0.57

0.054

0.016

nd

nd
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accoun

listed in table 1 Continued

£a

e

to

"1

O

S

Basin or 

field plot 

area (ha)

14,600

14,600

14,600

16,100

24,600

24,600

24,600

24,700

24,700

27,300

30,200

36,400

42,000

42,000

56,600

64,800

65,800

76,200

93,542

95,500

122,400

126,100

213,100

240,700

361,900

361,900

575,400

638,000

1,713,100

1,902,400

2,929,100

2,929,100

2,929,100

2,929,100

3,858,500

6,926,700

7,571,606

7,571,606

Row 

crop 

area

55

87

87

30

76

76

76

49

49

24

20

63

30

30

56

33

66

70

NA

68

44

22

16

29

4

4

17

52

56

10

44

44

44

44

80

61

58

58

State, 

country, or 

river basin

WA

IN

IN

GA

IN

IN

IN

WI

WI

GA

MAN

NE

GA

GA

MN

MAN

ND

NE

Greece

NE

CA

OR

TX

MN

CA

CA

NC

WA

MN/ND

CA

WHR

IN

IN

IN

MNR.

IL

OHR.

OHR.

Watershed 

name or 

soil type

Crab Cr. Lateral

Kessinger Ditch

Kessinger Ditch

Lime Cr.

Sugar Cr.

Sugar Cr.

Sugar Cr.

Duck Cr.

Duck Cr.

Aycocks Cr.

Ochre R.

Prairie Cr.

Tucsawhatchee Cr.

Tucsawhatchee Cr.

Snake R.

Turtle R.

Turtle R.

Shell Cr.

C, SC, SiCL

Maple Cr.

Salt Slough

Pudding R.

Chambers Cr.

Wild Rice R.

Merced R.

Merced R.

TarR.

Palouse R.

Red R. of the North above Fargo

San Joaquin R.

White R.

White R.

White R.

White R.

MNR.

ILR.

Wabash R.

Wabash R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

irrigation

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

Basin (kg)

217

359

359

494

620

620

620

252

252

651

984

673

3,171

3,171

1,576

1,088

5,277

3,376

13,000

5,251

15,699

1,729

6,091

3,963

7,079

7,079

9,944

7,916

128,185

54,520

79,000

37,765

37,765

40,168

510,000

630,000

165,182

165,182

Runoff or 

stream (kg)

0.093

0.11

0.051

0.0058

0.80

nd

0.29

0.041

nd

nd

0.12

0.0018

0.032

nd

0.011

0.037

0.042

1.3

65

1.4

2.5

0.074

1.9

1.0

1.2

0.89

0.51

0.15

9.1

7.8

nd

20

9.3

7.7

nd

63

nd

54

Annual load 

as percent 

of use (%)

0.043

0.030

0.014

0.0012

0.13

nd

0.046

0.016

nd

nd

0.012

0.00027

0.0010

nd

0.00067

0.0034

0.00079

0.040

0.50

0.026

0.016

0.0043

0.031

0.026

0.017

0.013

0.0051

0.0019

0.0071

0.014

nd

0.053

0.025

0.019

nd

0.010

nd

0.033
Table 2. Summary of data from the scientific literature, the National Water-Quality Assessment Program, and the National Stream-Quality Accountin

listed in table 1 Continued

ited DataFrom

JLa.

C£

O. 5'

2.

 o

CD

o'

5!

CD

30 

3

3i

S

CM

e

a. Q) n

CD

I

3

Basin or 

field plot 

area (ha)

7,571,606

9,208,600

22,110,800

22,170,400

22,170,400

22,170,400

22,170,400

44,366,700

44,366,700

44,366,700

52,602,900

83,605,200

83,605,200

83,605,200

135,767,800

135,767,800

135,767,800

135,767,800

184,718,800

184,718,800

184,718,800

184,718,800

315,621,500

315,621,544

315,621,544

315,621,544

Row 

crop 

area

58

51

21

24

32

32

32

31

31

31

16

6

6

6

10

7

7

7

18

8

8

8

15

7

7_

7

State, 

country, or 

river basin

OHR.

MN/ND

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

OHR.

MOR.

MOR.

MOR.

MOR.

MOR.

MOR.

MOR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

MSR.

Watershed 

name or 

soil type

Wabash R.

Red R. of the North at Pembina

Platte R.

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Clinton, IA

MS R. at Grafton, IL

MS R. at Grafton, IL

MS R. at Grafton, IL

OH R. near Grand Chain, IL

MO R. at Omaha, NE

MO R. at Omaha, NE

MO R. at Omaha, NE

MO R. at Hermann, MO

MO R. at Hermann, MO

MO R. at Hermann, MO

MO R. at Hermann, MO

MSR. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Thebes, IL

MS R. at Baton Rouge, LA

MS and Atchafalaya R.

MS and Atchafalaya R.

MS and Atchafalaya R.

Precipitation 

type

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

rain

Mass use

..... Runoff or Basin (kg) _^ ., . 8 stream (kg)

165,182

480,462

240,000

810,000

569,438

569,438

' 569,438

1,664,053

1,664,053

1,664,053

750,000

1,087,103

1,087,103

1,087,103

2,400,000

1,840,771

1,840,771

1,840,771

5,400,000

3,594,687

3,594,687

3,594,687

8,500,000

5,808,596

5,808,596

5,808,596

43

19

24

nd

nd

nd

nd

nd

47

18

nd

139

51

63

240

129

158

88

nd

nd

449

138

nd

1,727

1,853

500

Annual load 

as percent 

of use (%)

0.026

0.0039

0.010

nd

nd

nd

nd

nd

0.0028

0.0011

nd

0.013

0.0047

0.0058

0.010

0.0070

0.0086

0.0048

nd

nd

0.012

0.0039

nd

0.030

0.032

0.0086

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W
Capel, Winterstein, and Larson SELECTED DATA FROM FIELD STUDIES OF PESTICIDE RUNOFF TO

SURFACE WATERS USGS WRIR 0(M284