Page 1 of 25

 

U. S. ENVIRONMENTAL PROTECTION AGENCY

Washington, D.C. 20460

OFFICE OF CHEMICAL SAFETY AND POLLUTION PREVENTION

PC Code: 060109

DP Barcode: 373378

376634

May 20, 2010 

 

MEMORANDUM

SUBJECT: Tier II Drinking Water Exposure Assessment to Establish a Tolerance of 

Thiamethoxam on Peanut and Alfalfa Seeds

TO: Dennis McNeilly, Chemist/Risk Assessor

Christina Swartz, Branch Chief

Julie Chao, Risk Manager Reviewer

Venus Eagle, Risk Manager

FROM: Christopher M. Koper, Chemist

Environmental Risk Branch I

Environmental Fate and Effects Division

THROUGH: Anita Pease, Acting Branch Chief

Brian Anderson, Risk Assessment Process Leader

Faruque Khan, Senior Fate Scientist, Secondary Reviewer

Environmental Risk Branch I

Environmental Fate and Effects Division

A Tier II screening-level drinking water assessment was conducted for the proposed new use of 

thiamethoxam on peanut and alfalfa seeds submitted by Syngenta Crop Protection, Inc. 

Tolerances for leafy vegetables, dry bulb onions and corn were also included in this assessment 

after review of the submitted labels showed increased rates that were not previously assessed for 

these crops.

Thiamethoxam is a systemic neonicotinoid insecticide that can be applied as a seed treatment for 

various crops. This assessment was based on information contained in the CruiserInsecticide 

(EPA Reg. No. 100-941) and CruiserPD (EPA Reg. No. 100-RGAL) labels. The estimated 

drinking water concentrations (EDWCs) are based on the maximum proposed application rates

specified in the product labels. The EDWCs for the human health risk assessment are presented 

in Table 1.
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For surface water, the EDWCs for the crops modeled in this assessment did not exceed the 

previous EDWCs for rice reported in the previous drinking water assessment (D363202) dated 

07 April 2009. The reported acute concentration of 131.77 μg/L, annual mean (chronic) 

concentration of 11.31 μg/L and the highest 30 year annual average concentration of 11.31 μg/L

from the rice model are higher than the reported EDWCs for various uses in Table 1. Therefore, 

the current EDWCs for surface water do not supersede the drinking water concentrations 

previously estimated for this chemical.

For groundwater, based on the highest annual use rate for dry bulb onion (0.300 lbs. a.i./acre) 

and the proposed use rates for peanut seed (0.080 lbs. a.i./acre) and alfalfa seed (0.022 lbs. 

a.i./acre), the SCI-GROW model concentrations of thiamethoxam were 4.66 μg/L, 1.24 μg/L and 

0.34 μg/L, respectively (Table 1). These values were compared to 4.14 μg/L reported for grapes

in the previous drinking water assessment (D329467) dated 10 January 2007. It is important to 

note that the predicted groundwater value for grapes is a corrected value described in detail in a

previous drinking water assessment (D368072) dated 02 February 2010. Since 4.66 μg/L for dry

bulb onions is greater than 4.14 μg/L, the current EDWC supersedes the previously

recommended EDWC for groundwater. 

In conclusion, the current EDWCs for surface water do not supersede the estimated drinking 

water concentrations previously derived for thiamethoxam. The current EDWC for groundwater 

supersedes the estimated drinking water concentration previously estimated for this chemical. 

Therefore, the recommended EWDC for groundwater is 4.66 μg/L.

Table 1 Thiamethoxam Estimated Drinking Water Concentrations (EDWCs) for Surface Water and 

Groundwater Based on Selected Crop Scenarios
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Monitoring Data

Proposed Label 

Use

PRZM/EXAMS

Scenario

(first app. date)

Application Rate 

(interval between 

applications)

1-in-10 year 

acute

(μg/L)

1-in-10 year 

chronic 

(μg/L)

30 year 

average 

(μg/L)

Surface Water

Peanuts NC Peanuts

(May 9) 1 app. X 0.080 lbs. ai/acre 1.51 0.16 0.05

Alfalfa CA Alfalfa

(January 9) 1 app. X 0.022 lbs. ai/acre 0.37 0.07 0.03

MN Alfalfa

(May 25) 1 app. X 0.022 lbs. ai/acre 0.27 0.03 0.02

NC Alfalfa

(March 25) 1 app. X 0.022 lbs. ai/acre 0.55 0.08 0.03

PA Alfalfa

(March 9) 1 app. X 0.022 lbs. ai/acre 0.37 0.05 0.03

TX Alfalfa

(August 25) 1 app. X 0.022 lbs. ai/acre 0.89 0.10 0.05

IL Alfalfa

(May 25) 1 app. X 0.022 lbs. ai/acre 0.58 0.06 0.03

Leafy Vegetables CA Lettuce 

(Feb. 9) 1 app. X 0.266 lbs. ai/acre 23.78 13.68 11.29 1

Dry Bulb Onions CA Onion

(Jan. 9) 1 app. x 0.300 lbs ai/acre 1.57 0.25 0.06

GA Onion

(Sept. 8) 1 app. x 0.300 lbs ai/acre 20.45 1.54 0.44

Corn KS Corn

(May 3) 1 app. X 0.210 lbs. ai/acre 11.88 1.34 0.63

MS Corn

(April 3) 1 app. X 0.210 lbs. ai/acre 17.93 1.81 0.75

NE Corn

(May 18) 1 app. X 0.210 lbs. ai/acre 15.43 1.73 0.70

OH Corn

(April 24) 1 app. X 0.210 lbs. ai/acre 12.46 1.50 0.39

Groundwater

Peanuts NA 1 app. x 0.080 lbs ai/acre 1.24 1.24 1.24

Alfalfa NA 1 app. x 0.022 lbs ai/acre 0.34 0.34 0.34

Dry Bulb Onion NA 1 app. x 0.300 lbs ai/acre 4.66 1

4.66 14.66 1

Surface water values denote maximum PCA adjusted EDWC values with PCA factor of 0.87.

Seed treatment is the method of application for all crop scenarios with a 2.54 cm. incorporation depth, 100

% application efficiency and 0% spray drift.

NA = Not Applicable 

1

= Bolded EDWCs are the maximum concentrations predicted by PRZM/EXAMS and SCI-GROW models
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Thiamethoxam is not included as one of the analytes monitored in U.S. surface and groundwater 

under the USGS’s National Water Quality Assessment (NAWQA) program. 

Two small-scale prospective groundwater (PGW) monitoring studies (MRID 47486201) were 

initiated in southwest Michigan in June 2001 and southwestern Georgia in the spring of 2002 to 

determine the potential for the active ingredient thiamethoxam and its degradates (i.e: CGA322704, CGA-355190, CGA-353042, NOA-404617, NOA-407475) to reach groundwater when 

used in a vulnerable hydrogeologic setting. Analytical data were collected from spring 2001 

through the 47-months after treatment (MAT; May 2005) sampling event for the Michigan study

and from spring 2002 through 36 months after application (MAA; May 2005) sampling event for 

the Georgia study. The monitoring data demonstrate that concentrations of the analytes of 

interest have peaked in the groundwater and have either completely dissipated or have leveled 

off for an extended period of time. Further details concerning this study can be found in the 

following memorandum (D325449) dated 12 June 2006. 

In Michigan, thiamethoxam residues found in soil-pore water samples clearly peaked at 3.5 μg/L 

14 MAT and then declined. No quantifiable residues of thiamethoxam > LOQ (0.05 μg/L) were 

determined in any of the 3, 6, and 9-ft lysimeters after the 36, 16, and 41-MAT sampling events, 

respectively. By the 47-MAT sampling event, only trace level detections of thiamethoxam were 

observed in three of the 15-ft. lysimeter units (maximum concentration 0.11 μg/L).

In Georgia, thiamethoxam residues were confirmed in only four shallow monitoring wells (MW1S, MW-3S, MW-5S, and MW-8S) during 47 months of sampling. Thiamethoxam residues in 

groundwater peaked at 43-MAT, and by 47-MAT, residues were confined to two shallow 

monitoring wells only (maximum concentration 0.12 μg/L). Thiamethoxam was not detected 

(LOQ = 0.050 μg/L) in any groundwater samples collected from the deep monitoring wells 

during 47 months of sampling.

Drinking Water Exposure Modeling

Estimated drinking water concentrations (EDWCs) were generated using EFED’s standard suite 

of models. Application rates for the proposed new uses on peanut and alfalfa seeds were 

assessed, based on information provided on the labels. Since there is no standard scenario for 

alfalfa, the specialty OP (Organophosphate) and NMC (N-Methyl Carbamate) scenarios for 

alfalfa were utilized. In addition, EDWCs for leafy vegetables, dry bulb onions and corn were 

also included in this assessment after review of the submitted labels showed increased rates that 

were not previously assessed for these crops.

Models

Pesticide Root Zone Model (PRZM v3.12.2, May 12, 2005) and Exposure Analysis Modeling 

System (EXAMS v2.98.04.06, April 25, 2005) are simulation models coupled with the input 

PE5.pl shell (PE5, PE Version 5.0, November 15, 2006) to generate EDWCs of thiamethoxam

residues that may occur in surface water used as drinking water. The PRZM model simulates 

pesticide movement and transformation on and across the agricultural field resulting from crop 

applications. The EXAMS model simulates pesticide loading via runoff, erosion, and spray drift 
Page 5 of 25

assuming a standard watershed of 172.8 ha that drains into an adjacent standard drinking water 

index reservoir of 5.26 ha, an average depth of 2.74 m. A more detailed description of the index 

reservoir watershed can be found in Jones et al., 1998. The coupled PRZM/EXAMS model and 

user’s manuals may be downloaded from the U.S. Environmental Protection Agency (EPA) 

Water Models web-page (USEPA, 2010). Percent Crop Areas (PCA) that account for the 

maximum area within a watershed that may be planted with the modeled crop are applied to 

concentrations predicted by PRZM/EXAMS.

Screening Concentration in Ground Water (SCI-GROW v2.3, Jul. 29, 2003) is a regression 

model used as a screening tool to estimate pesticide concentrations found in ground water used 

as drinking water. The SCI-GROW model was developed by fitting a linear model to ground 

water concentrations with the Relative Index of Leaching Potential (RILP) as the independent 

variable. Ground water concentrations were taken from 90-day average high concentrations 

from Prospective Ground Water studies. The RILP is a function of aerobic soil metabolism and 

the soil-water partition coefficient. The output of SCI-GROW represents the concentrations of

residues that might be expected in shallow unconfined aquifers under sandy soils, which is 

representative of the ground water most vulnerable to pesticide contamination and likely to serve 

as a drinking water source. The SCI-GROW user’s manual is currently under development; 

however, information concerning the model can be found on the EPA Water Models web-page 

(USEPA, 2010). 

Input Parameters

Input parameters for the PRZM/EXAMS and SCI-GROW models are listed in Table 2 and

Table 3. Explanations of various model input parameters are discussed below.

Table 2. PRZM/EXAMS Input Parameters for Thiamethoxam. 

Input Parameter: Value: Comment: Source:

Scenario(s): Peanuts: NC Peanuts

Alfalfa: CA, MN, NC, PA, TX, IL Alfalfa

Leafy Vegetables: CA Lettuce

Dry Bulb Onions: CA, GA Onions

Corn: KS, MS, NE, OH Corn

representative scenarios for 

each use

N/A

Maximum Single 

Application Rate

lbs a.i./A (kg a.i./ha)

Peanuts: 0.080 (0.090)

Alfalfa: 0.022 (0.025)

Leafy Vegetables: 0.266 (0.299)

Dry Bulb Onions: 0.300 (0.337)

Corn: 0.210 (0.236)

proposed rates proposed label

Applications per Year Seed Treatments:

Peanuts: 1

Alfalfa: 1

Leafy Vegetables: 1

Dry Bulb Onions: 1

Corn: 1

label directions. Label 

specifies rates per season. If 

crops are rotated with those 

on which thiamethoxam is 

used, yearly rates may be 

higher. 

proposed label

Application Interval (days) N/A (single application only) intervals were selected to 

reflect labeled application 

patterns.

proposed label
Page 6 of 25

Table 2. PRZM/EXAMS Input Parameters for Thiamethoxam. 

Input Parameter: Value: Comment: Source:

Date of Initial Application

(scenario/day/month)

Peanuts:

NC Peanuts: 09-05

Alfalfa:

CA Alfalfa: 09-01

MN Alfalfa: 25-05

NC Alfalfa: 25-03

PA Alfalfa: 09-03

TX Alfalfa: 25-08

IL Alfalfa: 25-05

Leafy Vegetables: 

CA Lettuce: 09-02

Dry Bulb Onions:

CA Onions: 09-01

GA Onions: 08-09

Corn:

KS Corn: 03-05

MS Corn: 03-04

NE Corn: 18-05

OH Corn: 24-04

7 days before crop 

emergence was selected for 

seed treatment scenarios. 

Crop Scenarios

Application Method ground (seed treatment) label directions proposed label

CAM Input 4 soil applied, user defined 

incorporation depth, 

uniform with depth

proposed label

Incorporation Depth (cm.) 2.54 label directions (> 1 in.) proposed label

IPSCND Input 1 remaining pesticide on 

foliage is converted to 

surface application to the 

top soil layer 

US EPA, 2005

Spray Drift Fraction 0 incorporated seed treatment Input parameter guidance 

(USEPA, 2009) 

Application Efficiency 1.00 seed treatment Input parameter guidance 

(USEPA, 2009)

Molecular Mass (g/mol) 291.7 product chemistry data US EPA, 2007

Vapor Pressure at 25°C 

(torr)

4.95 x 10-11 product chemistry data US EPA, 2007

Henry’s Law Constant

(atm-m

3

/mol)

4.65 x 10-15 calculated from volatility 

and solubility data

registrant submitted data

Solubility in Water at 25oC 

(mg/L)

4100 product chemistry data US EPA, 2007

Organic Carbon Partition 

Coefficient (KOC) (L/kgOC)

70.23 represents the average KOC MRID 44703502

Aerobic Soil Metabolism 

Half-life (days)

480.92 represents the 90th %-ile 

confidence bound on the 

mean half-life

MRID 44703418

MRID 44703419

MRID 44703501

Aerobic Aquatic 

Metabolism Half-life (days)

19.92 represents the 90th %-ile 

confidence bound on the 

mean half-life

MRID 44715032
Page 7 of 25

Table 2. PRZM/EXAMS Input Parameters for Thiamethoxam. 

Input Parameter: Value: Comment: Source:

Anaerobic Aquatic 

Metabolism Half-life (days)

43.98 represents the 90th %-ile 

confidence bound on the 

mean half-life

MRID 44715029

MRID 44715030

MRID 44715031

Hydrolysis Half-lives (days) Stable pH 7 MRID 44703417 

Aqueous Photolysis

Half-life (days)

4.46 represents the 90th %-ile 

confidence bound on the 

mean half-life

MRID 44715032

N/A = Not Applicable

Table 3. SCI-GROW Input Parameters for Thiamethoxam. 

Input Parameter Value Comment Source

Maximum Application Rate

per growing season (lbs a.i./A)

0.300 (dry bulb onion)

0.080 (peanuts)

0.022 (alfalfa)

maximum application rate proposed label

Applications per Year 1 label directions proposed label

Organic Carbon Partition 

Coefficient (KOC) (L/kgOC)

48 represents the median KOC value MRID 44703502

Aerobic Soil Metabolism

Half-life (days)

302 represents the mean half-life value MRID 44703418

MRID 44703419

MRID 44703501

Application methods and rates were obtained from the proposed labels for peanut and alfalfa 

seeds and from existing labels for leafy vegetables, dry bulb onions and corn. Considering the 

seed treatment, the date of initial application of thiamethoxam was 7 days before the crop 

emergence date from the respective crop scenarios. In addition, among the 10 possible scenarios 

available for corn, the Kansas, Mississippi, Nebraska, and Ohio corn scenarios were selected to 

be representative of upper bound estimations in this assessment. 

Standard percent cropped areas (PCA) were used for all uses as estimates of the extent of 

watershed on which crops is grown (Effland et al., 1999). The default agricultural PCA of 0.87 

was used for the proposed uses because they are not confined to specific regions of the U.S. 

Actual fractions of cropped areas could be less in some areas of the country. The model input 

and output data for these estimates are attached in Appendix A and B.
Page 8 of 25

REFERENCES

Effland, W. R., N. C. Thurman, I. Kennedy. 1999. Proposed Methods for Determining 

Watershed-derived Percent Crop Areas and Considerations for Applying Crop Area 

Adjustments to Surface Water Screening Models. Presentation to the FIFRA Science 

Advisory Panel, May 27, 1999. Online at: 

http://www.epa.gov/scipoly/sap/1999/index.htm

Jones, R. D., S. Abel, W. R. Effland, R. Matzner, R. Parker. 1998. An Index Reservoir for Use 

in Assessing Drinking Water Exposure. Proposed Methods for Basin-scale Estimation of 

Pesticide Concentrations in Flowing Water and Reservoirs for Tolerance Reassessment. 

Presentation to FIFRA Science Advisory Panel, June 29-30, 1998. Online at: 

http://www.epa.gov/scipoly/sap/1998/index.htm

USEPA. 2005. PRZM-3, A Model for Predicting Pesticide and Nitrogen Fate in the Crop Root 

and Unsaturated Soil Zones: Users Manual for Release 3.0. May 2005.

USEPA. 2006. Termination of Sampling Request for the Michigan and Georgia Small-Scale 

Prospective Groundwater Monitoring Studies for Thiamethoxam. D325449. June 12, 

2006.

USEPA. 2007. Revised Tier II Drinking Water Assessment for Thiamethoxam. U.S. 

Environmental Protection Agency, Office of Prevention, Pesticides and Toxic 

Substances. DP DP329467. January 10, 2007.

USEPA. 2009. Guidance for Selecting Input Parameters in Modeling the Environmental Fate 

and Transport of Pesticides, Version 2.1. U.S. Environmental Protection Agency, Office 

of Prevention, Pesticides and Toxic Substances, Office of Pesticide Programs, 

Environmental Fate and Effects Division, October 22, 2009. 

USEPA. 2010. Water Models. U.S. Environmental Protection Agency, Pesticides: Science and 

Policy. Online at: http://www.epa.gov/oppefed1/models/water/
Page 9 of 25

Appendix A. PRZM/EXAMS Output Files
Page 10 of 25

stored as ncpeanutdw0.080.out

Chemical: Thiamethoxam

PRZM environment: NCpeanutSTD.txt modified Tueday, 29 May 2007 at 13:58:46

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w13722.dvf modified Tueday, 26 August 2008 at 06:14:27

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 1.77 1.70 1.43 0.93 0.69 0.18

1962 0.11 0.11 0.10 0.07 0.05 0.02

1963 0.85 0.81 0.68 0.43 0.31 0.08

1964 0.06 0.06 0.04 0.04 0.03 0.01

1965 0.30 0.28 0.25 0.19 0.15 0.04

1966 0.19 0.18 0.15 0.09 0.07 0.02

1967 0.89 0.86 0.73 0.48 0.36 0.10

1968 0.12 0.11 0.10 0.07 0.05 0.01

1969 0.34 0.33 0.29 0.19 0.14 0.04

1970 0.09 0.09 0.07 0.05 0.04 0.01

1971 1.87 1.80 1.51 0.98 0.73 0.19

1972 1.47 1.41 1.18 0.78 0.58 0.16

1973 0.16 0.15 0.13 0.08 0.06 0.02

1974 1.40 1.33 1.11 0.74 0.55 0.15

1975 0.11 0.10 0.09 0.06 0.05 0.01

1976 1.31 1.27 1.05 0.66 0.49 0.13

1977 0.31 0.30 0.24 0.15 0.11 0.03

1978 0.46 0.43 0.36 0.23 0.17 0.04

1979 0.46 0.45 0.38 0.25 0.19 0.05

1980 0.63 0.61 0.50 0.31 0.22 0.06

1981 0.56 0.54 0.44 0.30 0.22 0.06

1982 0.03 0.02 0.02 0.01 0.01 0.00

1983 0.55 0.54 0.48 0.32 0.23 0.06

1984 0.58 0.55 0.43 0.26 0.19 0.05

1985 0.19 0.18 0.15 0.10 0.08 0.02

1986 1.14 1.08 0.88 0.52 0.38 0.10

1987 0.10 0.09 0.07 0.06 0.05 0.01

1988 0.47 0.45 0.37 0.23 0.17 0.04

1989 0.22 0.21 0.18 0.15 0.11 0.03

1990 1.85 1.76 1.46 0.94 0.69 0.18

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 1.87 1.80 1.51 0.98 0.73 0.19

0.06 1.85 1.76 1.46 0.94 0.69 0.18

0.10 1.77 1.70 1.43 0.93 0.69 0.18

0.13 1.47 1.41 1.18 0.78 0.58 0.16

0.16 1.40 1.33 1.11 0.74 0.55 0.15

0.19 1.31 1.27 1.05 0.66 0.49 0.13

0.23 1.14 1.08 0.88 0.52 0.38 0.10

0.26 0.89 0.86 0.73 0.48 0.36 0.10

0.29 0.85 0.81 0.68 0.43 0.31 0.08

0.32 0.63 0.61 0.50 0.32 0.23 0.06

0.35 0.58 0.55 0.48 0.31 0.22 0.06

0.39 0.56 0.54 0.44 0.30 0.22 0.06

0.42 0.55 0.54 0.43 0.26 0.19 0.05

0.45 0.47 0.45 0.38 0.25 0.19 0.05

0.48 0.46 0.45 0.37 0.23 0.17 0.04

0.52 0.46 0.43 0.36 0.23 0.17 0.04

0.55 0.34 0.33 0.29 0.19 0.15 0.04

0.58 0.31 0.30 0.25 0.19 0.14 0.04

0.61 0.30 0.28 0.24 0.15 0.11 0.03

0.65 0.22 0.21 0.18 0.15 0.11 0.03

0.68 0.19 0.18 0.15 0.10 0.08 0.02

0.71 0.19 0.18 0.15 0.09 0.07 0.02

0.74 0.16 0.15 0.13 0.08 0.06 0.02

0.77 0.12 0.11 0.10 0.07 0.05 0.02

0.81 0.11 0.11 0.10 0.07 0.05 0.01

0.84 0.11 0.10 0.09 0.06 0.05 0.01

0.87 0.10 0.09 0.07 0.06 0.05 0.01

0.90 0.09 0.09 0.07 0.05 0.04 0.01

0.94 0.06 0.06 0.04 0.04 0.03 0.01

0.97 0.03 0.02 0.02 0.01 0.01 0.00

0.10 1.74 1.67 1.41 0.92 0.68 0.18

Average of yearly averages: 0.06

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: ncpeanutdw0.080

Metfile: w13722.dvf

PRZM scenario: NCpeanutSTD.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.09 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 09-05 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 11 of 25

stored as Caalfalfa0.022.out

Chemical: Thiamethoxam

PRZM environment: CAalfalfa_WirrigOP.txt modified Thuday, 14 June 2007 at 11:20:44

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w93193.dvf modified Tueday, 26 August 2008 at 06:16:12

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.21 0.21 0.19 0.15 0.12 0.04

1962 0.13 0.13 0.12 0.10 0.09 0.03

1963 0.25 0.25 0.23 0.18 0.15 0.05

1964 0.01 0.01 0.01 0.01 0.01 0.00

1965 0.01 0.01 0.01 0.01 0.01 0.00

1966 0.05 0.05 0.04 0.04 0.03 0.01

1967 0.19 0.18 0.17 0.14 0.12 0.03

1968 0.02 0.02 0.02 0.02 0.01 0.00

1969 0.98 0.96 0.89 0.75 0.63 0.19

1970 0.44 0.43 0.39 0.31 0.26 0.08

1971 0.00 0.00 0.00 0.00 0.00 0.00

1972 0.06 0.06 0.05 0.04 0.03 0.01

1973 0.06 0.06 0.06 0.05 0.04 0.01

1974 0.00 0.00 0.00 0.00 0.00 0.00

1975 0.00 0.00 0.00 0.00 0.00 0.00

1976 0.24 0.23 0.21 0.17 0.14 0.04

1977 0.00 0.00 0.00 0.00 0.00 0.00

1978 0.20 0.19 0.17 0.14 0.11 0.03

1979 0.10 0.10 0.09 0.07 0.06 0.02

1980 0.11 0.11 0.10 0.08 0.07 0.02

1981 0.22 0.21 0.19 0.15 0.13 0.04

1982 0.00 0.00 0.00 0.00 0.00 0.00

1983 0.59 0.57 0.54 0.42 0.35 0.10

1984 0.07 0.07 0.06 0.04 0.04 0.01

1985 0.06 0.06 0.06 0.04 0.03 0.01

1986 0.26 0.26 0.23 0.19 0.15 0.04

1987 0.04 0.04 0.03 0.03 0.02 0.01

1988 0.02 0.02 0.02 0.02 0.01 0.00

1989 0.02 0.02 0.02 0.02 0.01 0.00

1990 0.37 0.36 0.33 0.27 0.22 0.06

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 0.98 0.96 0.89 0.75 0.63 0.19

0.06 0.59 0.57 0.54 0.42 0.35 0.10

0.10 0.44 0.43 0.39 0.31 0.26 0.08

0.13 0.37 0.36 0.33 0.27 0.22 0.06

0.16 0.26 0.26 0.23 0.19 0.15 0.05

0.19 0.25 0.25 0.23 0.18 0.15 0.04

0.23 0.24 0.23 0.21 0.17 0.14 0.04

0.26 0.22 0.21 0.19 0.15 0.13 0.04

0.29 0.21 0.21 0.19 0.15 0.12 0.04

0.32 0.20 0.19 0.17 0.14 0.12 0.03

0.35 0.19 0.18 0.17 0.14 0.11 0.03

0.39 0.13 0.13 0.12 0.10 0.09 0.03

0.42 0.11 0.11 0.10 0.08 0.07 0.02

0.45 0.10 0.10 0.09 0.07 0.06 0.02

0.48 0.07 0.07 0.06 0.05 0.04 0.01

0.52 0.06 0.06 0.06 0.04 0.04 0.01

0.55 0.06 0.06 0.06 0.04 0.03 0.01

0.58 0.06 0.06 0.05 0.04 0.03 0.01

0.61 0.05 0.05 0.04 0.04 0.03 0.01

0.65 0.04 0.04 0.03 0.03 0.02 0.01

0.68 0.02 0.02 0.02 0.02 0.01 0.00

0.71 0.02 0.02 0.02 0.02 0.01 0.00

0.74 0.02 0.02 0.02 0.02 0.01 0.00

0.77 0.01 0.01 0.01 0.01 0.01 0.00

0.81 0.01 0.01 0.01 0.01 0.01 0.00

0.84 0.00 0.00 0.00 0.00 0.00 0.00

0.87 0.00 0.00 0.00 0.00 0.00 0.00

0.90 0.00 0.00 0.00 0.00 0.00 0.00

0.94 0.00 0.00 0.00 0.00 0.00 0.00

0.97 0.00 0.00 0.00 0.00 0.00 0.00

0.10 0.43 0.42 0.38 0.31 0.26 0.08

Average of yearly averages: 0.03

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: Caalfalfa0.022

Metfile: w93193.dvf

PRZM scenario: CAalfalfa_WirrigOP.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.025 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 09-01 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 12 of 25

stored as MNalfalfa0.022.out

Chemical: Thiamethoxam

PRZM environment: MNalfalfaOP.txt modified Thuday, 14 June 2007 at 11:21:44

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w14914.dvf modified Tueday, 26 August 2008 at 06:15:15

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.03 0.02 0.02 0.02 0.02 0.01

1962 0.09 0.09 0.07 0.06 0.05 0.02

1963 0.22 0.21 0.18 0.12 0.09 0.03

1964 0.33 0.31 0.25 0.15 0.12 0.04

1965 0.02 0.02 0.02 0.01 0.01 0.01

1966 0.01 0.01 0.01 0.01 0.01 0.00

1967 0.02 0.02 0.02 0.01 0.01 0.00

1968 0.01 0.01 0.01 0.01 0.01 0.00

1969 0.14 0.13 0.11 0.09 0.08 0.03

1970 0.15 0.15 0.13 0.10 0.07 0.03

1971 0.01 0.01 0.01 0.01 0.01 0.01

1972 0.05 0.04 0.04 0.03 0.02 0.01

1973 0.02 0.02 0.02 0.01 0.01 0.00

1974 0.11 0.10 0.09 0.06 0.05 0.02

1975 0.39 0.38 0.34 0.22 0.17 0.05

1976 0.02 0.02 0.02 0.02 0.01 0.01

1977 0.19 0.18 0.15 0.13 0.11 0.04

1978 0.27 0.26 0.22 0.14 0.11 0.03

1979 0.07 0.06 0.05 0.04 0.04 0.01

1980 0.02 0.02 0.02 0.01 0.01 0.01

1981 0.03 0.03 0.02 0.01 0.01 0.01

1982 0.03 0.02 0.02 0.01 0.01 0.00

1983 0.07 0.06 0.05 0.04 0.03 0.01

1984 0.31 0.30 0.25 0.16 0.12 0.04

1985 0.27 0.25 0.22 0.16 0.13 0.04

1986 0.15 0.14 0.12 0.08 0.06 0.02

1987 0.10 0.10 0.08 0.05 0.06 0.02

1988 0.07 0.07 0.06 0.05 0.05 0.02

1989 0.05 0.05 0.04 0.03 0.03 0.02

1990 0.17 0.17 0.14 0.10 0.08 0.03

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 0.39 0.38 0.34 0.22 0.17 0.05

0.06 0.33 0.31 0.25 0.16 0.13 0.04

0.10 0.31 0.30 0.25 0.16 0.12 0.04

0.13 0.27 0.26 0.22 0.15 0.12 0.04

0.16 0.27 0.25 0.22 0.14 0.11 0.04

0.19 0.22 0.21 0.18 0.13 0.11 0.03

0.23 0.19 0.18 0.15 0.12 0.09 0.03

0.26 0.17 0.17 0.14 0.10 0.08 0.03

0.29 0.15 0.15 0.13 0.10 0.08 0.03

0.32 0.15 0.14 0.12 0.09 0.07 0.03

0.35 0.14 0.13 0.11 0.08 0.06 0.02

0.39 0.11 0.10 0.09 0.06 0.06 0.02

0.42 0.10 0.10 0.08 0.06 0.05 0.02

0.45 0.09 0.09 0.07 0.05 0.05 0.02

0.48 0.07 0.07 0.06 0.05 0.05 0.02

0.52 0.07 0.06 0.05 0.04 0.04 0.02

0.55 0.07 0.06 0.05 0.04 0.03 0.01

0.58 0.05 0.05 0.04 0.03 0.03 0.01

0.61 0.05 0.04 0.04 0.03 0.02 0.01

0.65 0.03 0.03 0.02 0.02 0.02 0.01

0.68 0.03 0.02 0.02 0.02 0.01 0.01

0.71 0.03 0.02 0.02 0.01 0.01 0.01

0.74 0.02 0.02 0.02 0.01 0.01 0.01

0.77 0.02 0.02 0.02 0.01 0.01 0.01

0.81 0.02 0.02 0.02 0.01 0.01 0.01

0.84 0.02 0.02 0.02 0.01 0.01 0.00

0.87 0.02 0.02 0.02 0.01 0.01 0.00

0.90 0.01 0.01 0.01 0.01 0.01 0.00

0.94 0.01 0.01 0.01 0.01 0.01 0.00

0.97 0.01 0.01 0.01 0.01 0.01 0.00

0.10 0.31 0.30 0.24 0.16 0.12 0.04

Average of yearly averages: 0.02

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: MNalfalfa0.022

Metfile: w14914.dvf

PRZM scenario: MNalfalfaOP.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.025 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 25-05 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 13 of 25

stored as NCalfalfa0.022.out

Chemical: Thiamethoxam

PRZM environment: NCalfalfaOP.txt modified Thuday, 14 June 2007 at 11:21:52

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w03812.dvf modified Tueday, 26 August 2008 at 06:14:09

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1965 1.08 1.06 0.94 0.70 0.55 0.16

1966 0.01 0.01 0.01 0.01 0.01 0.00

1967 0.01 0.01 0.01 0.01 0.01 0.00

1968 0.06 0.06 0.05 0.04 0.03 0.01

1969 0.13 0.12 0.11 0.08 0.06 0.02

1970 0.16 0.16 0.14 0.10 0.08 0.02

1971 0.05 0.05 0.04 0.03 0.03 0.01

1972 0.02 0.02 0.02 0.02 0.01 0.00

1973 0.07 0.07 0.06 0.05 0.04 0.01

1974 0.27 0.26 0.24 0.18 0.14 0.04

1975 0.43 0.42 0.38 0.28 0.22 0.06

1976 0.27 0.26 0.22 0.17 0.13 0.04

1977 0.58 0.56 0.50 0.36 0.29 0.08

1978 0.63 0.61 0.54 0.40 0.32 0.09

1979 0.41 0.39 0.35 0.26 0.20 0.06

1980 0.64 0.63 0.56 0.41 0.32 0.09

1981 0.42 0.41 0.35 0.25 0.20 0.06

1982 0.01 0.01 0.01 0.01 0.00 0.00

1983 0.38 0.37 0.34 0.27 0.22 0.06

1984 0.58 0.56 0.52 0.40 0.32 0.09

1985 0.09 0.09 0.07 0.06 0.05 0.01

1986 0.02 0.02 0.02 0.01 0.01 0.00

1987 0.08 0.08 0.07 0.05 0.04 0.01

1988 0.07 0.07 0.06 0.05 0.04 0.01

1989 0.02 0.02 0.02 0.01 0.01 0.00

1990 0.01 0.01 0.01 0.00 0.00 0.00

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.04 1.08 1.06 0.94 0.70 0.55 0.16

0.07 0.64 0.63 0.56 0.41 0.32 0.09

0.11 0.63 0.61 0.54 0.40 0.32 0.09

0.15 0.58 0.56 0.52 0.40 0.32 0.09

0.19 0.58 0.56 0.50 0.36 0.29 0.08

0.22 0.43 0.42 0.38 0.28 0.22 0.06

0.26 0.42 0.41 0.35 0.27 0.22 0.06

0.30 0.41 0.39 0.35 0.26 0.20 0.06

0.33 0.38 0.37 0.34 0.25 0.20 0.06

0.37 0.27 0.26 0.24 0.18 0.14 0.04

0.41 0.27 0.26 0.22 0.17 0.13 0.04

0.44 0.16 0.16 0.14 0.10 0.08 0.02

0.48 0.13 0.12 0.11 0.08 0.06 0.02

0.52 0.09 0.09 0.07 0.06 0.05 0.01

0.56 0.08 0.08 0.07 0.05 0.04 0.01

0.59 0.07 0.07 0.06 0.05 0.04 0.01

0.63 0.07 0.07 0.06 0.05 0.04 0.01

0.67 0.06 0.06 0.05 0.04 0.03 0.01

0.70 0.05 0.05 0.04 0.03 0.03 0.01

0.74 0.02 0.02 0.02 0.02 0.01 0.00

0.78 0.02 0.02 0.02 0.01 0.01 0.00

0.81 0.02 0.02 0.02 0.01 0.01 0.00

0.85 0.01 0.01 0.01 0.01 0.01 0.00

0.89 0.01 0.01 0.01 0.01 0.01 0.00

0.93 0.01 0.01 0.01 0.01 0.00 0.00

0.96 0.01 0.01 0.01 0.00 0.00 0.00

0.10 0.63 0.62 0.55 0.41 0.32 0.09

Average of yearly averages: 0.04

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: NCalfalfa0.022

Metfile: w03812.dvf

PRZM scenario: NCalfalfaOP.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.025 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 25-03 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 14 of 25

stored as PAalfalfa0.022.out

Chemical: Thiamethoxam

PRZM environment: PAalfalfaOP.txt modified Thuday, 14 June 2007 at 11:23:40

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w14751.dvf modified Tueday, 26 August 2008 at 06:14:59

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.02 0.02 0.02 0.01 0.01 0.00

1962 0.09 0.09 0.08 0.07 0.06 0.02

1963 0.05 0.05 0.04 0.03 0.03 0.01

1964 0.17 0.16 0.15 0.12 0.10 0.03

1965 0.02 0.02 0.01 0.01 0.01 0.00

1966 0.15 0.15 0.13 0.10 0.08 0.02

1967 0.08 0.08 0.08 0.06 0.05 0.01

1968 0.21 0.20 0.19 0.16 0.13 0.04

1969 0.44 0.43 0.39 0.30 0.23 0.06

1970 0.05 0.04 0.04 0.03 0.03 0.01

1971 0.22 0.21 0.20 0.15 0.13 0.04

1972 0.12 0.12 0.11 0.09 0.08 0.02

1973 0.06 0.06 0.05 0.04 0.03 0.01

1974 0.14 0.14 0.12 0.09 0.08 0.02

1975 0.09 0.09 0.08 0.07 0.05 0.02

1976 0.02 0.02 0.02 0.02 0.01 0.00

1977 0.74 0.72 0.69 0.55 0.45 0.13

1978 0.27 0.27 0.25 0.20 0.16 0.05

1979 0.04 0.04 0.04 0.03 0.02 0.01

1980 0.25 0.25 0.23 0.18 0.14 0.04

1981 0.04 0.04 0.03 0.02 0.02 0.01

1982 0.18 0.17 0.16 0.15 0.12 0.04

1983 0.23 0.22 0.21 0.17 0.14 0.04

1984 0.23 0.22 0.20 0.16 0.13 0.04

1985 0.04 0.04 0.03 0.03 0.02 0.01

1986 0.47 0.46 0.42 0.33 0.27 0.08

1987 0.03 0.03 0.03 0.02 0.02 0.00

1988 0.11 0.11 0.10 0.07 0.06 0.02

1989 0.08 0.08 0.07 0.06 0.05 0.01

1990 0.03 0.03 0.02 0.02 0.02 0.00

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 0.74 0.72 0.69 0.55 0.45 0.13

0.06 0.47 0.46 0.42 0.33 0.27 0.08

0.10 0.44 0.43 0.39 0.30 0.23 0.06

0.13 0.27 0.27 0.25 0.20 0.16 0.05

0.16 0.25 0.25 0.23 0.18 0.14 0.04

0.19 0.23 0.22 0.21 0.17 0.14 0.04

0.23 0.23 0.22 0.20 0.16 0.13 0.04

0.26 0.22 0.21 0.20 0.16 0.13 0.04

0.29 0.21 0.20 0.19 0.15 0.13 0.04

0.32 0.18 0.17 0.16 0.15 0.12 0.04

0.35 0.17 0.16 0.15 0.12 0.10 0.03

0.39 0.15 0.15 0.13 0.10 0.08 0.02

0.42 0.14 0.14 0.12 0.09 0.08 0.02

0.45 0.12 0.12 0.11 0.09 0.08 0.02

0.48 0.11 0.11 0.10 0.07 0.06 0.02

0.52 0.09 0.09 0.08 0.07 0.06 0.02

0.55 0.09 0.09 0.08 0.07 0.05 0.02

0.58 0.08 0.08 0.08 0.06 0.05 0.01

0.61 0.08 0.08 0.07 0.06 0.05 0.01

0.65 0.06 0.06 0.05 0.04 0.03 0.01

0.68 0.05 0.05 0.04 0.03 0.03 0.01

0.71 0.05 0.04 0.04 0.03 0.03 0.01

0.74 0.04 0.04 0.04 0.03 0.02 0.01

0.77 0.04 0.04 0.03 0.03 0.02 0.01

0.81 0.04 0.04 0.03 0.02 0.02 0.01

0.84 0.03 0.03 0.03 0.02 0.02 0.00

0.87 0.03 0.03 0.02 0.02 0.02 0.00

0.90 0.02 0.02 0.02 0.02 0.01 0.00

0.94 0.02 0.02 0.02 0.01 0.01 0.00

0.97 0.02 0.02 0.01 0.01 0.01 0.00

0.10 0.42 0.42 0.38 0.29 0.23 0.06

Average of yearly averages: 0.03

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: PAalfalfa0.022

Metfile: w14751.dvf

PRZM scenario: PAalfalfaOP.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.025 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 09-03 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 15 of 25

stored as TXalfalfa0.022.out

Chemical: Thiamethoxam

PRZM environment: TXalfalfaOP.txt modified Thuday, 14 June 2007 at 11:23:54

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w13958.dvf modified Tueday, 26 August 2008 at 06:14:43

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 1.00 0.93 0.71 0.44 0.35 0.09

1962 4.09 3.69 2.62 1.51 1.11 0.31

1963 0.21 0.19 0.14 0.10 0.09 0.04

1964 0.66 0.61 0.50 0.34 0.27 0.07

1965 1.02 0.94 0.73 0.49 0.38 0.11

1966 0.26 0.24 0.19 0.12 0.09 0.04

1967 0.31 0.30 0.25 0.17 0.13 0.04

1968 0.45 0.43 0.33 0.21 0.16 0.05

1969 1.83 1.71 1.25 0.72 0.54 0.15

1970 0.30 0.28 0.21 0.13 0.10 0.04

1971 0.06 0.06 0.05 0.03 0.02 0.01

1972 0.05 0.04 0.03 0.03 0.03 0.01

1973 0.94 0.88 0.71 0.46 0.36 0.09

1974 0.76 0.72 0.58 0.37 0.28 0.09

1975 0.70 0.65 0.49 0.31 0.23 0.07

1976 0.35 0.32 0.24 0.16 0.13 0.04

1977 0.49 0.45 0.36 0.22 0.17 0.05

1978 0.16 0.15 0.14 0.09 0.07 0.03

1979 0.16 0.15 0.12 0.07 0.06 0.02

1980 0.40 0.37 0.28 0.18 0.14 0.04

1981 0.39 0.37 0.27 0.17 0.13 0.04

1982 0.06 0.05 0.04 0.03 0.02 0.01

1983 0.17 0.16 0.12 0.08 0.06 0.02

1984 0.17 0.16 0.14 0.10 0.08 0.03

1985 0.08 0.08 0.06 0.04 0.03 0.01

1986 0.54 0.50 0.37 0.22 0.17 0.05

1987 0.76 0.70 0.53 0.33 0.25 0.07

1988 0.21 0.20 0.16 0.10 0.08 0.03

1989 0.10 0.10 0.08 0.07 0.06 0.02

1990 0.07 0.07 0.05 0.04 0.04 0.02

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 4.09 3.69 2.62 1.51 1.11 0.31

0.06 1.83 1.71 1.25 0.72 0.54 0.15

0.10 1.02 0.94 0.73 0.49 0.38 0.11

0.13 1.00 0.93 0.71 0.46 0.36 0.09

0.16 0.94 0.88 0.71 0.44 0.35 0.09

0.19 0.76 0.72 0.58 0.37 0.28 0.09

0.23 0.76 0.70 0.53 0.34 0.27 0.07

0.26 0.70 0.65 0.50 0.33 0.25 0.07

0.29 0.66 0.61 0.49 0.31 0.23 0.07

0.32 0.54 0.50 0.37 0.22 0.17 0.05

0.35 0.49 0.45 0.36 0.22 0.17 0.05

0.39 0.45 0.43 0.33 0.21 0.16 0.05

0.42 0.40 0.37 0.28 0.18 0.14 0.04

0.45 0.39 0.37 0.27 0.17 0.13 0.04

0.48 0.35 0.32 0.25 0.17 0.13 0.04

0.52 0.31 0.30 0.24 0.16 0.13 0.04

0.55 0.30 0.28 0.21 0.13 0.10 0.04

0.58 0.26 0.24 0.19 0.12 0.09 0.04

0.61 0.21 0.20 0.16 0.10 0.09 0.04

0.65 0.21 0.19 0.14 0.10 0.08 0.03

0.68 0.17 0.16 0.14 0.10 0.08 0.03

0.71 0.17 0.16 0.14 0.09 0.07 0.03

0.74 0.16 0.15 0.12 0.08 0.06 0.02

0.77 0.16 0.15 0.12 0.07 0.06 0.02

0.81 0.10 0.10 0.08 0.07 0.06 0.02

0.84 0.08 0.08 0.06 0.04 0.04 0.02

0.87 0.07 0.07 0.05 0.04 0.03 0.01

0.90 0.06 0.06 0.05 0.03 0.03 0.01

0.94 0.06 0.05 0.04 0.03 0.02 0.01

0.97 0.05 0.04 0.03 0.03 0.02 0.01

0.10 1.02 0.94 0.72 0.48 0.38 0.11

Average of yearly averages: 0.06

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: TXalfalfa0.022

Metfile: w13958.dvf

PRZM scenario: TXalfalfaOP.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.025 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 25-08 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 16 of 25

stored as ILalfalfa0.022.out

Chemical: Thiamethoxam

PRZM environment: ILalfalfaNMC.txt modified Thuday, 14 June 2007 at 11:16:12

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w14842.dvf modified Tueday, 26 August 2008 at 06:15:07

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.07 0.06 0.05 0.03 0.02 0.01

1962 0.53 0.51 0.41 0.26 0.20 0.05

1963 0.14 0.14 0.11 0.08 0.07 0.02

1964 0.18 0.17 0.13 0.08 0.06 0.02

1965 0.13 0.12 0.10 0.07 0.05 0.02

1966 0.05 0.05 0.04 0.03 0.03 0.01

1967 0.12 0.12 0.09 0.07 0.05 0.02

1968 0.17 0.16 0.13 0.08 0.07 0.02

1969 0.04 0.04 0.03 0.03 0.02 0.01

1970 0.14 0.13 0.11 0.07 0.05 0.02

1971 0.20 0.19 0.15 0.10 0.07 0.02

1972 0.10 0.09 0.08 0.06 0.04 0.01

1973 0.10 0.09 0.08 0.05 0.04 0.01

1974 0.16 0.15 0.13 0.09 0.07 0.02

1975 0.69 0.66 0.55 0.35 0.26 0.07

1976 0.47 0.45 0.36 0.26 0.20 0.06

1977 0.03 0.03 0.02 0.02 0.01 0.01

1978 0.39 0.38 0.31 0.21 0.15 0.04

1979 0.01 0.01 0.01 0.01 0.01 0.00

1980 1.22 1.15 0.92 0.58 0.42 0.11

1981 0.04 0.04 0.03 0.02 0.02 0.01

1982 0.25 0.24 0.19 0.13 0.10 0.03

1983 0.02 0.02 0.02 0.01 0.01 0.00

1984 0.21 0.20 0.18 0.11 0.09 0.02

1985 0.12 0.11 0.10 0.06 0.05 0.01

1986 0.30 0.29 0.25 0.15 0.11 0.03

1987 0.31 0.29 0.22 0.13 0.10 0.03

1988 0.01 0.01 0.01 0.01 0.00 0.00

1989 0.01 0.01 0.01 0.01 0.01 0.00

1990 1.06 1.02 0.84 0.54 0.41 0.11

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 1.22 1.15 0.92 0.58 0.42 0.11

0.06 1.06 1.02 0.84 0.54 0.41 0.11

0.10 0.69 0.66 0.55 0.35 0.26 0.07

0.13 0.53 0.51 0.41 0.26 0.20 0.06

0.16 0.47 0.45 0.36 0.26 0.20 0.05

0.19 0.39 0.38 0.31 0.21 0.15 0.04

0.23 0.31 0.29 0.25 0.15 0.11 0.03

0.26 0.30 0.29 0.22 0.13 0.10 0.03

0.29 0.25 0.24 0.19 0.13 0.10 0.03

0.32 0.21 0.20 0.18 0.11 0.09 0.02

0.35 0.20 0.19 0.15 0.10 0.07 0.02

0.39 0.18 0.17 0.13 0.09 0.07 0.02

0.42 0.17 0.16 0.13 0.08 0.07 0.02

0.45 0.16 0.15 0.13 0.08 0.07 0.02

0.48 0.14 0.14 0.11 0.08 0.06 0.02

0.52 0.14 0.13 0.11 0.07 0.05 0.02

0.55 0.13 0.12 0.10 0.07 0.05 0.02

0.58 0.12 0.12 0.10 0.07 0.05 0.02

0.61 0.12 0.11 0.09 0.06 0.05 0.01

0.65 0.10 0.09 0.08 0.06 0.04 0.01

0.68 0.10 0.09 0.08 0.05 0.04 0.01

0.71 0.07 0.06 0.05 0.03 0.03 0.01

0.74 0.05 0.05 0.04 0.03 0.02 0.01

0.77 0.04 0.04 0.03 0.03 0.02 0.01

0.81 0.04 0.04 0.03 0.02 0.02 0.01

0.84 0.03 0.03 0.02 0.02 0.01 0.01

0.87 0.02 0.02 0.02 0.01 0.01 0.00

0.90 0.01 0.01 0.01 0.01 0.01 0.00

0.94 0.01 0.01 0.01 0.01 0.01 0.00

0.97 0.01 0.01 0.01 0.01 0.00 0.00

0.10 0.67 0.64 0.54 0.34 0.26 0.07

Average of yearly averages: 0.03

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: ILalfalfa0.022

Metfile: w14842.dvf

PRZM scenario: ILalfalfaNMC.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.025 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 25-05 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 17 of 25

stored as caletucedw0.266.out

Chemical: Thiamethoxam

PRZM environment: CAlettuceSTD.txt modified Tueday, 21 February 2006 at 15:38:22

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w23273.dvf modified Tueday, 26 August 2008 at 06:15:39

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 2.45 2.37 2.22 1.37 0.91 0.23

1962 45.10 43.90 38.78 29.48 24.04 7.45

1963 23.41 22.70 19.61 14.56 11.89 3.62

1964 2.36 2.28 2.11 1.60 1.31 0.41

1965 0.17 0.16 0.15 0.11 0.10 0.04

1966 1.55 1.50 1.29 0.93 0.62 0.15

1967 0.89 0.87 0.78 0.59 0.49 0.21

1968 0.72 0.69 0.62 0.57 0.48 0.15

1969 3.26 3.15 2.87 2.18 1.78 0.54

1970 6.62 6.40 5.59 4.04 3.24 0.97

1971 0.59 0.57 0.49 0.35 0.29 0.11

1972 1.56 1.50 1.26 1.19 0.96 0.24

1973 27.70 26.91 23.39 17.46 14.18 4.30

1974 14.83 14.34 12.53 9.24 7.47 2.25

1975 2.07 2.00 1.73 1.58 1.35 0.43

1976 16.68 16.08 14.01 10.41 8.46 2.54

1977 5.79 5.59 4.83 3.59 3.04 0.93

1978 43.89 43.08 37.90 27.60 22.21 6.61

1979 5.24 5.08 4.57 3.52 2.86 0.87

1980 21.37 20.78 18.24 13.56 10.97 3.29

1981 4.80 4.67 4.19 3.20 2.77 0.87

1982 6.06 5.84 5.03 3.75 3.04 0.92

1983 12.17 11.73 10.77 8.40 6.85 2.03

1984 0.16 0.15 0.13 0.10 0.08 0.03

1985 0.35 0.34 0.30 0.22 0.17 0.06

1986 23.97 23.09 20.15 14.85 12.00 3.60

1987 3.02 2.92 2.54 2.03 1.73 0.54

1988 4.09 3.94 3.37 2.47 2.01 0.60

1989 0.13 0.12 0.10 0.07 0.07 0.03

1990 1.63 1.58 1.38 1.02 0.82 0.26

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 45.10 43.90 38.78 29.48 24.04 7.45

0.06 43.89 43.08 37.90 27.60 22.21 6.61

0.10 27.70 26.91 23.39 17.46 14.18 4.30

0.13 23.97 23.09 20.15 14.85 12.00 3.62

0.16 23.41 22.70 19.61 14.56 11.89 3.60

0.19 21.37 20.78 18.24 13.56 10.97 3.29

0.23 16.68 16.08 14.01 10.41 8.46 2.54

0.26 14.83 14.34 12.53 9.24 7.47 2.25

0.29 12.17 11.73 10.77 8.40 6.85 2.03

0.32 6.62 6.40 5.59 4.04 3.24 0.97

0.35 6.06 5.84 5.03 3.75 3.04 0.93

0.39 5.79 5.59 4.83 3.59 3.04 0.92

0.42 5.24 5.08 4.57 3.52 2.86 0.87

0.45 4.80 4.67 4.19 3.20 2.77 0.87

0.48 4.09 3.94 3.37 2.47 2.01 0.60

0.52 3.26 3.15 2.87 2.18 1.78 0.54

0.55 3.02 2.92 2.54 2.03 1.73 0.54

0.58 2.45 2.37 2.22 1.60 1.35 0.43

0.61 2.36 2.28 2.11 1.58 1.31 0.41

0.65 2.07 2.00 1.73 1.37 0.96 0.26

0.68 1.63 1.58 1.38 1.19 0.91 0.24

0.71 1.56 1.50 1.29 1.02 0.82 0.23

0.74 1.55 1.50 1.26 0.93 0.62 0.21

0.77 0.89 0.87 0.78 0.59 0.49 0.15

0.81 0.72 0.69 0.62 0.57 0.48 0.15

0.84 0.59 0.57 0.49 0.35 0.29 0.11

0.87 0.35 0.34 0.30 0.22 0.17 0.06

0.90 0.17 0.16 0.15 0.11 0.10 0.04

0.94 0.16 0.15 0.13 0.10 0.08 0.03

0.97 0.13 0.12 0.10 0.07 0.07 0.03

0.10 27.33 26.53 23.07 17.20 13.96 4.23

Average of yearly averages: 1.48

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: caletucedw0.266

Metfile: w23273.dvf

PRZM scenario: CAlettuceSTD.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.299 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 09-02 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 18 of 25

stored as caoniondw0.3.out

Chemical: Thiamethoxam

PRZM environment: CAonion_WirrigSTD.txt modified Tueday, 29 May 2007 at 13:43:34

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w23155.dvf modified Tueday, 26 August 2008 at 06:15:34

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 5E-14 5E-14 4E-14 3E-14 2E-14 5E-15

1962 1E-01 1E-01 1E-01 8E-02 7E-02 2E-02

1963 5E-01 5E-01 4E-01 3E-01 3E-01 7E-02

1964 2E-04 2E-04 2E-04 2E-04 2E-04 5E-05

1965 1E-05 9E-06 8E-06 6E-06 5E-06 1E-06

1966 5E-01 5E-01 5E-01 4E-01 3E-01 9E-02

1967 1E+00 1E+00 1E+00 9E-01 7E-01 2E-01

1968 3E-04 3E-04 2E-04 2E-04 2E-04 6E-05

1969 8E-01 7E-01 7E-01 5E-01 4E-01 1E-01

1970 5E-02 5E-02 4E-02 3E-02 2E-02 6E-03

1971 4E-05 4E-05 3E-05 2E-05 2E-05 5E-06

1972 6E-08 6E-08 5E-08 3E-08 2E-08 8E-09

1973 2E+00 2E+00 2E+00 1E+00 1E+00 3E-01

1974 1E-01 1E-01 1E-01 8E-02 6E-02 2E-02

1975 2E-01 2E-01 1E-01 1E-01 8E-02 2E-02

1976 2E-01 2E-01 2E-01 2E-01 1E-01 3E-02

1977 4E-05 4E-05 4E-05 3E-05 3E-05 8E-06

1978 2E-01 2E-01 2E-01 1E-01 1E-01 3E-02

1979 3E+00 3E+00 3E+00 2E+00 2E+00 5E-01

1980 2E+00 2E+00 2E+00 1E+00 1E+00 3E-01

1981 4E-01 4E-01 4E-01 3E-01 2E-01 6E-02

1982 2E-02 2E-02 1E-02 1E-02 8E-03 2E-03

1983 2E+00 2E+00 1E+00 1E+00 9E-01 3E-01

1984 4E-04 4E-04 4E-04 3E-04 3E-04 8E-05

1985 2E-05 2E-05 2E-05 2E-05 1E-05 3E-06

1986 1E-03 9E-04 8E-04 6E-04 5E-04 1E-04

1987 3E-07 3E-07 3E-07 2E-07 2E-07 6E-08

1988 2E-06 2E-06 2E-06 1E-06 1E-06 3E-07

1989 4E-01 4E-01 4E-01 3E-01 2E-01 6E-02

1990 9E-04 9E-04 8E-04 6E-04 5E-04 1E-04

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 3.01 2.92 2.59 2.05 1.71 0.49

0.06 2.02 1.96 1.74 1.34 1.11 0.32

0.10 1.81 1.76 1.57 1.18 0.99 0.29

0.13 1.71 1.67 1.47 1.14 0.94 0.27

0.16 1.32 1.29 1.16 0.90 0.75 0.22

0.19 0.75 0.73 0.68 0.53 0.44 0.13

0.23 0.54 0.53 0.49 0.39 0.31 0.09

0.26 0.53 0.51 0.44 0.33 0.26 0.07

0.29 0.44 0.43 0.38 0.28 0.22 0.06

0.32 0.43 0.42 0.37 0.27 0.22 0.06

0.35 0.25 0.24 0.21 0.16 0.13 0.03

0.39 0.18 0.18 0.16 0.14 0.12 0.03

0.42 0.16 0.16 0.14 0.10 0.08 0.02

0.45 0.12 0.12 0.11 0.08 0.07 0.02

0.48 0.12 0.12 0.10 0.08 0.06 0.02

0.52 0.05 0.05 0.04 0.03 0.02 0.01

0.55 0.02 0.02 0.01 0.01 0.01 0.00

0.58 0.00 0.00 0.00 0.00 0.00 0.00

0.61 0.00 0.00 0.00 0.00 0.00 0.00

0.65 0.00 0.00 0.00 0.00 0.00 0.00

0.68 0.00 0.00 0.00 0.00 0.00 0.00

0.71 0.00 0.00 0.00 0.00 0.00 0.00

0.74 0.00 0.00 0.00 0.00 0.00 0.00

0.77 0.00 0.00 0.00 0.00 0.00 0.00

0.81 0.00 0.00 0.00 0.00 0.00 0.00

0.84 0.00 0.00 0.00 0.00 0.00 0.00

0.87 0.00 0.00 0.00 0.00 0.00 0.00

0.90 0.00 0.00 0.00 0.00 0.00 0.00

0.94 0.00 0.00 0.00 0.00 0.00 0.00

0.97 0.00 0.00 0.00 0.00 0.00 0.00

0.10 1.80 1.75 1.56 1.17 0.99 0.29

Average of yearly averages: 0.07

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: caoniondw0.3

Metfile: w23155.dvf

PRZM scenario: CAonion_WirrigSTD.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.337 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 09-01 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 19 of 25

stored as gaoniondw0.3.out

Chemical: Thiamethoxam

PRZM environment: GAOnion_WirrigSTD.txt modified Tueday, 29 May 2007 at 13:54:42

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w03822.dvf modified Tueday, 26 August 2008 at 06:14:10

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.02 0.02 0.01 0.01 0.00 0.00

1962 5.93 5.43 4.01 2.37 1.75 0.45

1963 5.66 5.21 3.90 2.31 1.73 0.46

1964 11.43 10.47 7.66 4.71 3.49 0.93

1965 3.12 2.88 2.47 1.53 1.14 0.33

1966 6.06 5.54 3.91 2.23 1.63 0.44

1967 1.65 1.53 1.22 0.76 0.57 0.16

1968 0.83 0.79 0.68 0.45 0.34 0.10

1969 1.26 1.17 0.86 0.53 0.41 0.12

1970 9.18 8.34 6.34 3.64 2.67 0.69

1971 0.91 0.83 0.57 0.40 0.31 0.11

1972 0.09 0.08 0.07 0.05 0.03 0.01

1973 7.91 7.18 5.19 2.95 2.15 0.55

1974 0.20 0.19 0.15 0.09 0.07 0.02

1975 3.67 3.36 2.71 1.69 1.24 0.32

1976 34.56 31.69 22.69 13.30 9.91 2.54

1977 4.03 3.67 2.66 1.53 1.12 0.45

1978 0.28 0.27 0.20 0.12 0.09 0.04

1979 2.02 1.84 1.41 0.85 0.63 0.16

1980 4.94 4.48 3.55 2.10 1.55 0.41

1981 4.35 3.98 2.84 1.70 1.28 0.35

1982 1.64 1.50 1.08 0.73 0.54 0.16

1983 8.11 7.42 5.52 3.15 2.30 0.59

1984 3.14 2.97 2.23 1.27 0.94 0.26

1985 0.73 0.67 0.50 0.29 0.21 0.07

1986 0.85 0.79 0.58 0.34 0.25 0.07

1987 0.55 0.50 0.35 0.22 0.16 0.05

1988 32.56 29.69 21.08 11.95 8.72 2.22

1989 24.85 22.80 16.51 9.55 7.03 1.85

1990 10.99 10.22 7.71 4.64 3.49 0.97

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 34.56 31.69 22.69 13.30 9.91 2.54

0.06 32.56 29.69 21.08 11.95 8.72 2.22

0.10 24.85 22.80 16.51 9.55 7.03 1.85

0.13 11.43 10.47 7.71 4.71 3.49 0.97

0.16 10.99 10.22 7.66 4.64 3.49 0.93

0.19 9.18 8.34 6.34 3.64 2.67 0.69

0.23 8.11 7.42 5.52 3.15 2.30 0.59

0.26 7.91 7.18 5.19 2.95 2.15 0.55

0.29 6.06 5.54 4.01 2.37 1.75 0.46

0.32 5.93 5.43 3.91 2.31 1.73 0.45

0.35 5.66 5.21 3.90 2.23 1.63 0.45

0.39 4.94 4.48 3.55 2.10 1.55 0.44

0.42 4.35 3.98 2.84 1.70 1.28 0.41

0.45 4.03 3.67 2.71 1.69 1.24 0.35

0.48 3.67 3.36 2.66 1.53 1.14 0.33

0.52 3.14 2.97 2.47 1.53 1.12 0.32

0.55 3.12 2.88 2.23 1.27 0.94 0.26

0.58 2.02 1.84 1.41 0.85 0.63 0.16

0.61 1.65 1.53 1.22 0.76 0.57 0.16

0.65 1.64 1.50 1.08 0.73 0.54 0.16

0.68 1.26 1.17 0.86 0.53 0.41 0.12

0.71 0.91 0.83 0.68 0.45 0.34 0.11

0.74 0.85 0.79 0.58 0.40 0.31 0.10

0.77 0.83 0.79 0.57 0.34 0.25 0.07

0.81 0.73 0.67 0.50 0.29 0.21 0.07

0.84 0.55 0.50 0.35 0.22 0.16 0.05

0.87 0.28 0.27 0.20 0.12 0.09 0.04

0.90 0.20 0.19 0.15 0.09 0.07 0.02

0.94 0.09 0.08 0.07 0.05 0.03 0.01

0.97 0.02 0.02 0.01 0.01 0.00 0.00

0.10 23.51 21.57 15.63 9.06 6.67 1.77

Average of yearly averages: 0.50

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: gaoniondw0.3

Metfile: w03822.dvf

PRZM scenario: GAOnion_WirrigSTD.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.337 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 08-09 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 20 of 25

stored as KScorndw0.210.out

Chemical: Thiamethoxam

PRZM environment: KSCornStd.txt modified Monday, 25 August 2008 at 15:45:08

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w13996.dvf modified Tueday, 26 August 2008 at 06:14:51

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 13.22 12.80 11.10 7.72 5.79 1.55

1962 3.30 3.10 2.47 1.53 1.12 0.32

1963 11.25 10.91 9.32 6.09 4.45 1.16

1964 1.34 1.26 1.15 0.78 0.57 0.16

1965 1.98 1.88 1.57 1.01 0.74 0.21

1966 1.51 1.43 1.19 0.74 0.54 0.15

1967 10.58 10.17 8.72 6.24 4.71 1.28

1968 2.75 2.65 2.30 1.68 1.27 0.36

1969 11.63 11.11 9.42 6.60 4.97 1.32

1970 2.12 2.01 1.71 1.14 0.85 0.24

1971 5.48 5.32 4.65 3.00 2.21 0.59

1972 13.53 12.95 10.89 7.26 5.45 1.46

1973 10.79 10.36 8.87 6.27 4.67 1.26

1974 2.74 2.61 2.13 1.44 1.06 0.29

1975 1.31 1.25 1.11 0.71 0.52 0.14

1976 3.46 3.32 3.11 2.23 1.67 0.44

1977 20.77 19.67 16.23 10.52 7.72 2.02

1978 4.03 3.86 3.26 2.62 1.99 0.55

1979 0.37 0.35 0.28 0.19 0.14 0.05

1980 3.33 3.13 2.64 1.54 1.09 0.28

1981 6.36 6.10 5.60 3.80 2.80 0.74

1982 17.53 16.79 15.31 10.65 8.00 2.14

1983 1.83 1.75 1.61 1.05 0.77 0.22

1984 4.59 4.39 3.52 2.17 1.58 0.42

1985 2.95 2.81 2.31 1.69 1.28 0.35

1986 10.23 9.92 8.70 5.65 4.15 1.09

1987 5.79 5.47 4.42 3.00 2.22 0.59

1988 2.14 2.03 1.65 1.17 0.94 0.26

1989 13.66 13.06 11.27 7.60 5.68 1.52

1990 4.67 4.49 3.87 2.58 1.90 0.52

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 20.77 19.67 16.23 10.65 8.00 2.14

0.06 17.53 16.79 15.31 10.52 7.72 2.02

0.10 13.66 13.06 11.27 7.72 5.79 1.55

0.13 13.53 12.95 11.10 7.60 5.68 1.52

0.16 13.22 12.80 10.89 7.26 5.45 1.46

0.19 11.63 11.11 9.42 6.60 4.97 1.32

0.23 11.25 10.91 9.32 6.27 4.71 1.28

0.26 10.79 10.36 8.87 6.24 4.67 1.26

0.29 10.58 10.17 8.72 6.09 4.45 1.16

0.32 10.23 9.92 8.70 5.65 4.15 1.09

0.35 6.36 6.10 5.60 3.80 2.80 0.74

0.39 5.79 5.47 4.65 3.00 2.22 0.59

0.42 5.48 5.32 4.42 3.00 2.21 0.59

0.45 4.67 4.49 3.87 2.62 1.99 0.55

0.48 4.59 4.39 3.52 2.58 1.90 0.52

0.52 4.03 3.86 3.26 2.23 1.67 0.44

0.55 3.46 3.32 3.11 2.17 1.58 0.42

0.58 3.33 3.13 2.64 1.69 1.28 0.36

0.61 3.30 3.10 2.47 1.68 1.27 0.35

0.65 2.95 2.81 2.31 1.54 1.12 0.32

0.68 2.75 2.65 2.30 1.53 1.09 0.29

0.71 2.74 2.61 2.13 1.44 1.06 0.28

0.74 2.14 2.03 1.71 1.17 0.94 0.26

0.77 2.12 2.01 1.65 1.14 0.85 0.24

0.81 1.98 1.88 1.61 1.05 0.77 0.22

0.84 1.83 1.75 1.57 1.01 0.74 0.21

0.87 1.51 1.43 1.19 0.78 0.57 0.16

0.90 1.34 1.26 1.15 0.74 0.54 0.15

0.94 1.31 1.25 1.11 0.71 0.52 0.14

0.97 0.37 0.35 0.28 0.19 0.14 0.05

0.10 13.65 13.05 11.25 7.71 5.78 1.54

Average of yearly averages: 0.72

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: KScorndw0.210

Metfile: w13996.dvf

PRZM scenario: KSCornStd.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.236 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 03-05 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 21 of 25

stored as MScorndw0.210.out

Chemical: Thiamethoxam

PRZM environment: MScornSTD.txt modified Tueday, 29 May 2007 at 13:57:40

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w03940.dvf modified Tueday, 26 August 2008 at 06:14:14

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 2.09 2.01 1.72 1.28 0.98 0.26

1962 19.00 18.37 16.04 10.96 8.12 2.09

1963 1.83 1.74 1.45 0.95 0.71 0.19

1964 19.34 18.38 15.54 10.00 7.34 1.88

1965 0.65 0.61 0.50 0.32 0.24 0.06

1966 2.44 2.34 1.97 1.28 0.94 0.25

1967 4.06 3.85 3.23 2.42 1.87 0.50

1968 14.67 14.10 12.05 8.23 6.14 1.59

1969 4.22 4.03 3.35 2.23 1.64 0.43

1970 1.36 1.29 1.18 0.83 0.62 0.16

1971 10.49 10.05 8.57 5.68 4.18 1.08

1972 0.70 0.66 0.56 0.43 0.34 0.09

1973 8.95 8.66 7.27 5.19 3.88 1.00

1974 18.41 17.62 15.01 9.70 7.19 1.87

1975 3.65 3.50 3.16 2.16 1.60 0.42

1976 1.51 1.43 1.23 0.92 0.69 0.18

1977 20.75 19.75 16.57 10.97 8.04 2.06

1978 2.37 2.26 2.01 1.40 1.03 0.27

1979 22.61 21.85 18.70 13.67 10.40 2.74

1980 15.12 14.65 12.56 8.19 6.02 1.54

1981 1.82 1.72 1.37 1.00 0.79 0.21

1982 6.92 6.61 5.46 3.39 2.47 0.63

1983 39.12 38.06 33.11 22.84 17.22 4.49

1984 2.61 2.50 2.15 1.64 1.25 0.33

1985 3.60 3.44 2.92 2.16 1.62 0.42

1986 0.55 0.52 0.44 0.33 0.26 0.07

1987 0.86 0.81 0.68 0.42 0.31 0.08

1988 3.42 3.27 2.66 1.68 1.24 0.32

1989 4.24 4.12 3.50 2.68 2.04 0.54

1990 1.57 1.50 1.26 0.84 0.64 0.17

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 39.12 38.06 33.11 22.84 17.22 4.49

0.06 22.61 21.85 18.70 13.67 10.40 2.74

0.10 20.75 19.75 16.57 10.97 8.12 2.09

0.13 19.34 18.38 16.04 10.96 8.04 2.06

0.16 19.00 18.37 15.54 10.00 7.34 1.88

0.19 18.41 17.62 15.01 9.70 7.19 1.87

0.23 15.12 14.65 12.56 8.23 6.14 1.59

0.26 14.67 14.10 12.05 8.19 6.02 1.54

0.29 10.49 10.05 8.57 5.68 4.18 1.08

0.32 8.95 8.66 7.27 5.19 3.88 1.00

0.35 6.92 6.61 5.46 3.39 2.47 0.63

0.39 4.24 4.12 3.50 2.68 2.04 0.54

0.42 4.22 4.03 3.35 2.42 1.87 0.50

0.45 4.06 3.85 3.23 2.23 1.64 0.43

0.48 3.65 3.50 3.16 2.16 1.62 0.42

0.52 3.60 3.44 2.92 2.16 1.60 0.42

0.55 3.42 3.27 2.66 1.68 1.25 0.33

0.58 2.61 2.50 2.15 1.64 1.24 0.32

0.61 2.44 2.34 2.01 1.40 1.03 0.27

0.65 2.37 2.26 1.97 1.28 0.98 0.26

0.68 2.09 2.01 1.72 1.28 0.94 0.25

0.71 1.83 1.74 1.45 1.00 0.79 0.21

0.74 1.82 1.72 1.37 0.95 0.71 0.19

0.77 1.57 1.50 1.26 0.92 0.69 0.18

0.81 1.51 1.43 1.23 0.84 0.64 0.17

0.84 1.36 1.29 1.18 0.83 0.62 0.16

0.87 0.86 0.81 0.68 0.43 0.34 0.09

0.90 0.70 0.66 0.56 0.42 0.31 0.08

0.94 0.65 0.61 0.50 0.33 0.26 0.07

0.97 0.55 0.52 0.44 0.32 0.24 0.06

0.10 20.61 19.61 16.52 10.97 8.11 2.08

Average of yearly averages: 0.86

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: MScorndw0.210

Metfile: w03940.dvf

PRZM scenario: MScornSTD.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.236 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 03-04 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 22 of 25

stored as NEcorndw0.210.out

Chemical: Thiamethoxam

PRZM environment: NECornStd.txt modified Monday, 25 August 2008 at 15:38:46

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w94918.dvf modified Tueday, 26 August 2008 at 06:16:35

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 8.08 7.78 6.47 4.05 2.98 0.80

1962 6.27 5.93 4.97 3.14 2.37 0.67

1963 3.29 3.07 2.69 1.72 1.27 0.36

1964 12.26 11.69 9.52 6.02 4.41 1.19

1965 13.98 13.48 11.36 7.25 5.37 1.48

1966 19.55 18.89 15.80 10.03 7.37 2.02

1967 4.08 3.94 3.41 2.23 1.66 0.51

1968 2.67 2.57 2.21 1.43 1.06 0.30

1969 13.75 13.17 10.92 7.52 5.59 1.50

1970 3.85 3.66 3.07 2.13 1.58 0.46

1971 12.30 11.82 9.91 6.10 4.54 1.23

1972 0.54 0.52 0.43 0.31 0.24 0.09

1973 8.71 8.38 6.67 4.10 3.02 0.81

1974 17.03 16.34 14.02 9.13 6.65 1.79

1975 0.70 0.67 0.54 0.35 0.26 0.11

1976 24.26 23.51 19.45 12.20 8.91 2.36

1977 9.09 8.61 6.87 4.19 3.05 0.86

1978 0.92 0.86 0.80 0.65 0.51 0.16

1979 1.50 1.41 1.24 1.03 0.79 0.22

1980 3.77 3.59 2.88 1.80 1.31 0.35

1981 4.99 4.80 4.07 2.61 2.04 0.59

1982 17.81 17.10 15.29 10.49 7.84 2.15

1983 7.93 7.66 6.46 4.84 3.65 1.03

1984 4.54 4.46 3.87 2.55 1.90 0.53

1985 3.32 3.20 2.68 1.78 1.34 0.38

1986 1.19 1.11 0.87 0.61 0.47 0.15

1987 7.80 7.42 5.91 3.81 2.80 0.76

1988 10.39 9.87 8.31 5.10 3.73 1.00

1989 1.20 1.14 0.90 0.70 0.53 0.17

1990 2.69 2.61 2.27 1.57 1.19 0.33

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 24.26 23.51 19.45 12.20 8.91 2.36

0.06 19.55 18.89 15.80 10.49 7.84 2.15

0.10 17.81 17.10 15.29 10.03 7.37 2.02

0.13 17.03 16.34 14.02 9.13 6.65 1.79

0.16 13.98 13.48 11.36 7.52 5.59 1.50

0.19 13.75 13.17 10.92 7.25 5.37 1.48

0.23 12.30 11.82 9.91 6.10 4.54 1.23

0.26 12.26 11.69 9.52 6.02 4.41 1.19

0.29 10.39 9.87 8.31 5.10 3.73 1.03

0.32 9.09 8.61 6.87 4.84 3.65 1.00

0.35 8.71 8.38 6.67 4.19 3.05 0.86

0.39 8.08 7.78 6.47 4.10 3.02 0.81

0.42 7.93 7.66 6.46 4.05 2.98 0.80

0.45 7.80 7.42 5.91 3.81 2.80 0.76

0.48 6.27 5.93 4.97 3.14 2.37 0.67

0.52 4.99 4.80 4.07 2.61 2.04 0.59

0.55 4.54 4.46 3.87 2.55 1.90 0.53

0.58 4.08 3.94 3.41 2.23 1.66 0.51

0.61 3.85 3.66 3.07 2.13 1.58 0.46

0.65 3.77 3.59 2.88 1.80 1.34 0.38

0.68 3.32 3.20 2.69 1.78 1.31 0.36

0.71 3.29 3.07 2.68 1.72 1.27 0.35

0.74 2.69 2.61 2.27 1.57 1.19 0.33

0.77 2.67 2.57 2.21 1.43 1.06 0.30

0.81 1.50 1.41 1.24 1.03 0.79 0.22

0.84 1.20 1.14 0.90 0.70 0.53 0.17

0.87 1.19 1.11 0.87 0.65 0.51 0.16

0.90 0.92 0.86 0.80 0.61 0.47 0.15

0.94 0.70 0.67 0.54 0.35 0.26 0.11

0.97 0.54 0.52 0.43 0.31 0.24 0.09

0.10 17.73 17.02 15.16 9.94 7.30 1.99

Average of yearly averages: 0.81

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: NEcorndw0.210

Metfile: w94918.dvf

PRZM scenario: NECornStd.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.236 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 18-05 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 23 of 25

stored as OHcorndw0.210.out

Chemical: Thiamethoxam

PRZM environment: OHCornSTD.txt modified Tueday, 29 May 2007 at 13:59:54

EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w93815.dvf modified Tueday, 26 August 2008 at 06:16:19

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 16.12 15.75 14.11 10.40 8.07 2.21

1962 0.23 0.22 0.17 0.11 0.10 0.06

1963 0.88 0.84 0.72 0.47 0.39 0.12

1964 1.66 1.61 1.36 0.92 0.70 0.19

1965 5.91 5.74 4.81 3.19 2.41 0.65

1966 3.19 3.11 2.70 1.97 1.50 0.41

1967 1.21 1.17 1.06 0.72 0.55 0.15

1968 2.35 2.26 2.13 1.48 1.12 0.31

1969 1.21 1.18 1.11 0.79 0.60 0.17

1970 15.75 15.27 13.01 8.86 6.69 1.79

1971 2.19 2.10 1.87 1.25 0.94 0.27

1972 1.55 1.51 1.36 0.96 0.73 0.20

1973 1.22 1.18 1.02 0.77 0.60 0.16

1974 0.68 0.65 0.56 0.40 0.31 0.09

1975 14.97 14.73 12.72 8.68 6.59 1.78

1976 2.33 2.26 1.96 1.44 1.12 0.33

1977 4.12 3.91 3.21 2.23 1.69 0.46

1978 3.21 3.12 2.73 1.99 1.52 0.42

1979 0.17 0.17 0.15 0.12 0.10 0.03

1980 1.33 1.28 1.13 0.78 0.59 0.16

1981 0.81 0.78 0.71 0.52 0.39 0.11

1982 0.36 0.35 0.29 0.21 0.16 0.04

1983 6.92 6.77 6.03 4.31 3.27 0.88

1984 0.74 0.71 0.61 0.40 0.32 0.10

1985 3.43 3.28 2.80 1.93 1.47 0.40

1986 0.12 0.12 0.09 0.07 0.05 0.02

1987 0.17 0.16 0.15 0.10 0.08 0.02

1988 0.51 0.48 0.39 0.24 0.18 0.05

1989 8.47 8.35 7.36 5.25 4.03 1.10

1990 5.54 5.35 4.79 3.38 2.57 0.72

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 16.12 15.75 14.11 10.40 8.07 2.21

0.06 15.75 15.27 13.01 8.86 6.69 1.79

0.10 14.97 14.73 12.72 8.68 6.59 1.78

0.13 8.47 8.35 7.36 5.25 4.03 1.10

0.16 6.92 6.77 6.03 4.31 3.27 0.88

0.19 5.91 5.74 4.81 3.38 2.57 0.72

0.23 5.54 5.35 4.79 3.19 2.41 0.65

0.26 4.12 3.91 3.21 2.23 1.69 0.46

0.29 3.43 3.28 2.80 1.99 1.52 0.42

0.32 3.21 3.12 2.73 1.97 1.50 0.41

0.35 3.19 3.11 2.70 1.93 1.47 0.40

0.39 2.35 2.26 2.13 1.48 1.12 0.33

0.42 2.33 2.26 1.96 1.44 1.12 0.31

0.45 2.19 2.10 1.87 1.25 0.94 0.27

0.48 1.66 1.61 1.36 0.96 0.73 0.20

0.52 1.55 1.51 1.36 0.92 0.70 0.19

0.55 1.33 1.28 1.13 0.79 0.60 0.17

0.58 1.22 1.18 1.11 0.78 0.60 0.16

0.61 1.21 1.18 1.06 0.77 0.59 0.16

0.65 1.21 1.17 1.02 0.72 0.55 0.15

0.68 0.88 0.84 0.72 0.52 0.39 0.12

0.71 0.81 0.78 0.71 0.47 0.39 0.11

0.74 0.74 0.71 0.61 0.40 0.32 0.10

0.77 0.68 0.65 0.56 0.40 0.31 0.09

0.81 0.51 0.48 0.39 0.24 0.18 0.06

0.84 0.36 0.35 0.29 0.21 0.16 0.05

0.87 0.23 0.22 0.17 0.12 0.10 0.04

0.90 0.17 0.17 0.15 0.11 0.10 0.03

0.94 0.17 0.16 0.15 0.10 0.08 0.02

0.97 0.12 0.12 0.09 0.07 0.05 0.02

0.10 14.32 14.09 12.18 8.34 6.33 1.72

Average of yearly averages: 0.45

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: OHcorndw0.210

Metfile: w93815.dvf

PRZM scenario: OHCornSTD.txt

EXAMS environment file: ir298.exv

Chemical Name: Thiamethoxam

Description Variable NameValue Units Comments

Molecular weight mwt 291.7 g/mol

Henry's Law Const. henry 4.65E-15 atm-m^3/mol

Vapor Pressure vapr 4.95E-11 torr

Solubility sol 4100 mg/L

Kd Kd mg/L

Koc Koc 70.23 mg/L

Photolysis half-life kdp 4.46 days Half-life

Aerobic Aquatic Metabolism kbacw 19.92 days Halfife

Anaerobic Aquatic Metabolism kbacs 43.98 days Halfife

Aerobic Soil Metabolism asm 480.92 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 4 integer See PRZM manual

Incorporation Depth: DEPI 2.54 cm

Application Rate: TAPP 0.236 kg/ha

Application Efficiency: APPEFF 1 fraction

Spray Drift DRFT 0 fraction of application rate applied to pond

Application Date Date 24-04 dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17: FILTRA

IPSCND 1

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR Reservoir

Flag for runoff calc. RUNOFF total none, monthly or total(average of entire run)
Page 24 of 25

Appendix B. SCI-GROW Output Files:

Dry Bulb Onion:

SCIGROW

VERSION 2.3

ENVIRONMENTAL FATE AND EFFECTS DIVISION

OFFICE OF PESTICIDE PROGRAMS

U.S. ENVIRONMENTAL PROTECTION AGENCY

SCREENING MODEL

FOR AQUATIC PESTICIDE EXPOSURE

SciGrow version 2.3

chemical:Thiamethoxam on Dry Bulb Onion

time is 4/16/2010 14: 7:45

------------------------------------------------------------------------

 Application Number of Total Use Koc Soil Aerobic

 rate (lb/acre) applications (lb/acre/yr) (ml/g) metabolism (days)

------------------------------------------------------------------------

 0.300 1.0 0.300 4.80E+01 302.0

------------------------------------------------------------------------

groundwater screening cond (ppb) = 4.66E+00 

************************************************************************

Peanuts:

SCIGROW

VERSION 2.3

ENVIRONMENTAL FATE AND EFFECTS DIVISION

OFFICE OF PESTICIDE PROGRAMS

U.S. ENVIRONMENTAL PROTECTION AGENCY

SCREENING MODEL

FOR AQUATIC PESTICIDE EXPOSURE

SciGrow version 2.3

chemical:Thiamethoxam

time is 5/11/2010 16:39:56

------------------------------------------------------------------------

 Application Number of Total Use Koc Soil Aerobic

 rate (lb/acre) applications (lb/acre/yr) (ml/g) metabolism (days)

------------------------------------------------------------------------

 0.080 1.0 0.080 4.80E+01 302.0

------------------------------------------------------------------------

groundwater screening cond (ppb) = 1.24E+00 

************************************************************************

Alfalfa:
Page 25 of 25

SCIGROW

VERSION 2.3

ENVIRONMENTAL FATE AND EFFECTS DIVISION

OFFICE OF PESTICIDE PROGRAMS

U.S. ENVIRONMENTAL PROTECTION AGENCY

SCREENING MODEL

FOR AQUATIC PESTICIDE EXPOSURE

SciGrow version 2.3

chemical:Thiamethoxam

time is 5/11/2010 16:41:54

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Application Number of Total Use Koc Soil Aerobic

rate (lb/acre) applications (lb/acre/yr) (ml/g) metabolism (days)

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0.022 1.0 0.022 4.80E+01 302.0

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groundwater screening cond (ppb) = 3.42E-01

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