# 1 **UNITED STATES ENVIRONMENTAL PROTECTION AGENCY**

WASHINGTON D.C., 20460

OFFICE OF CHEMICAL SAFETY AND POLLUTION PREVENTION



# DP Barcode**: 368735 PC Code: 108800**  **April 2** **2 , 2010**  **MEMORANDUM**

**SUBJECT:** Drinking WaterAssessmentfor S

-Metolachlor and its Degradates Ethanesulfonic

Acid (ESA) and Oxanilic Acid (OA)forVarious CropUses

**TO:** Sidney

Jackson
,Risk Manager Reviewer Barbara Madden, Risk Manager Registration Division

**FROM:** Christopher M. Koper, Chemist

Environmental Risk Branch I Environmental Fate and Effects Division

**THRU:** Anita Pease
,ActingBranch Chief

Brian Anderson, Risk Assessment Process Leader James Lin, Secondary

Reviewer Environmental Risk Branch I Environmental Fate and Effects Division

**1. Executive Summary** **:**

**1.1. Assessed Chemicals and Commodities** **:**

Thisdrinking water assessment was conducted for apetition submittedby the Interregional Research Project Number 4 (IR

-4) to establish s

-metolachlortolerances forsesame, melon subgroup9A, bushberry

subgroup 13

-07B, lowbush blueberry, caneberry subgroup 13

-07A, sweet sorghum, leafy

brassica greens subgroup 5B, turnip greens, carrot, cucumber, okra, bulb onion subgroup 3

-07A and green onion subgroup 3

-07B. S

-Metolachlor is a broad spectr um herbicide thatacts to inhibit seedling development. Itcan be applied to cropsas a pre

-emergent

orpost

-emergentbroadcast ground application as well asa surfaceband application. This assessment was based on information contained inthe Dual Magnum 

# (EPA Reg. No. 100

-816) label

.

# 2

This drinking water assessment was conducted on theparent s

-metolachloranditsmajor degradates ethanesulfonic acid (ESA) and oxanilic acid (OA)

.Itis important to note that the environmental fate data has been bridged from the racemic mixture (50:50) of metolachlor to the newer isomer (88:12) s

-metolachlor
, based on similarities inenvironmental fate behavior.

**1.2. Application Rates** **:**
The Estimated Drinking Water Concentrations (EDWCs) for use in the humandietar yhealth risk assessment are based on the maximumnewproposed application rate specif ied in the Dual Magnum 

# label, which isa singleyearlyapplication of 3.81 lbs a.i./acre for use on caneberry

. The application rate for the degradateESAwas calculated by multiplying the application rate of the parentactive ingredientby the fraction of the maximum detected degradate from the submitted fate studies (0.12; MRID 43928936)andthen multiplyingby the ratio of the molecular weights of the degradate to parent (329.1 g/mol/283.8 g/mol). Following this equation, the maximum single application ratefor the ESA degradate is0.53 lbs a.i./acre for caneberry use

. The application rate for theOAdegradatewas calculated by multiplying the application rate of
the parent active ingredientby the fraction of the maximum detected degradate from the submitted fate studies (0.28; MRID 41309801)andthen multiplyingby the ratio of the molecular weights of the degradate to parent (279.1 g/mol/283.8 g/mol). Followingthis equation, the maximum single application ratefor the OA degradate is 1.05 lbs a.i./acre for caneberry use.

S

-Metolachlor and its degradates ESA and OA have been detected extensively in surface water and groundwateras reported in theTolerance Reassessment Document (US EPA, 2002).Based on the proposed application rates and the environmental fate properties ofs

-metolachlor, surface
waterand groundwater contamination may occur from s

-metolachloras well as its degradates ESA and OA.

**1.3. Modeling** **Approach :** 

Tier Iand Tier II screening modelswere employed for this assessment. For surface water, PRZM/EXAMS (PE5) andFIRST(FQPAIndexReservoir ScreeningTool) Version1.1.1 models

wereused toestimatedrinking water concentrations for the parent s

-metolachlor and the ESA and OA degradates, respectively

.The SCI

-GROWmodel (Screening Concentration in Ground Water ProgramVersion2.3)was used topredict the maximum acute and chronic concentrations present in shallow groundwater.

**1.4. Monitoring D** **ata**:
Since the previous EDWCs for surface water for the parent s

-metolachlor were based on NAWQA monitoring data, a search of the available monitoring data was performed on March 30, 2010 to ensure that the most current monitoring data were considered inthis assessment. The

# 3

data set captured the timeframe of October 1991 to October 2009 and included the parent s

metolachlor and its degradates ESA and OA. Based on a review of the current monitoring data, concentrations of parent s

-metolachlor and its degradates were less than values reported from the previous monitoring data (US EPA, 2002). Therefore, EDWCs based on previous monitoring are still valid.

**1.5. Results and EDWC Recommendations** **:**
A summary

of recommendedsurface and groundwaterEDWCs for thehuman dietary risk
assessmentfor the parent s

-metolachlor andits degradates ESA and OA are presented in**Table 1**

. **Table 1** contains EDWCs based onthis current assessment as well asvalues reported inthe previousdrinking water assessment (D324967) dated 20 March 2006. Values derived from the current modeling exercise are bolded in Table 1.

**Table 1. Recom me** **nded Drinking Water Concentrations (EDWCs) for Surface Water and Groundwater for Hum** **an Dietary Health Risk Assessm ent** 

**Chem ical Identity** 

**– Drink**  **ing Water Source Acute**  **(μg/L) Chronic** 

**(μg/L) Cancer Chronic** 

**(μg/L)**

**Surface Water**

S

-Metolachlor (parent)

– Surface Water Crop Use or Monitoring Data 77.60

monitoring data **18.15**

CA cole crop **9.15** KS sorghum

Ethanesulfonic Acid (ESA)

– Surface Water Crop Use or Monitoring Data **47.61** caneberry **34.04**

caneberry **34.04**

caneberry

Oxanilic Acid (OA)

– Surface Water Crop Use or Monitoring Data **93.57** caneberry **66.62**

caneberry **66.62**

caneberry

**Ground w** **ate r** 

S

-Metolachlor (parent)

–Groundwater Crop Use or Monitoring Data 32.8

monitoring data 32.8

monitoring data 32.8

monitoring data

Ethanesulfonic Acid (ESA)

–Groundwater Crop Use or Monitoring Data 63.7

monitoring data 63.7

monitoring data 63.7

monitoring data

Oxanilic Acid (OA)

–Groundwater Crop Use or Monitoring Data **29.7** caneberry **29.7**

caneberry **29.7**

caneberry

Bold values denote the maximum EDWCs modeled in this assessment that exceed the EDWCsbased on monitoring and

modeling datareported in theprevious drinking water assessment (D324967) dated 20 March2006. For surface water, the single chronic value from FIRST is used as the chronic and cancer chronic values. For groundwater, the single output value from SCI

-GROW is used as the acute, chronic and cancer chronic values.

# 4

**2. Environmental Fate**  **and Tran sport**  **Summary :** 

The information from all acceptable and upgradable environmental fate data indicate that parent metolachlor/s

-metolachlor appears to be moderately persistent to persistent. Itismobile to highly mobile in different soils and has been detected extensively in surface water and groundwater. Metolachlor/s

-metolachlor degradation appears to be dependent on microbially mediated (aerobic soilmetabolismt1/2

# = 66 days,37.8 days,37.8 days, 14.9days, 13.9days,and50.3days,anaerobic soilmetabolismt1/2

# =81days)andabioticprocesses(photodegradationinwatert1/2 

# =70daysunder natural sunlight and photodegradation on soilt1/2

# = 8 days under natural sunlight).

ThemajordegradateswereidentifiedasCGA

-51202(metolachlorOA),CGA

-50720,CGA

-41638, CGA

-37735,andCGA

-13656.SubsequentstudiesidentifiedCGA

-354743(metolachlorESA)asa major degradate (of these major degradates, metolachlor ESA and metolachlor OA have been identified in both groundwater and surface water). Depending on the soil (i.e. organic matter content),metolachlor/s

-metolachlorhasthepotentialtorangefromamoderately mobiletoahighly mobile material with Kd values ranging from 0.11 to 44.8 mLg/oc, and Koc values ranging from 21.6 to 367 L/kg oc

.

EFED concluded there is no difference in soil sorption affinity between metolachlor and s

metolachlor.TherewasnostatisticaldifferencebetweenKocvaluesinnon

-pairedbatchequilibrium studies; similar Koc coefficients for metolachlor (mean Koc=249.250) and s

-metolachlor (mean Koc=265.875) were observed in paired batch equilibrium studies. These data suggest that metolachlor and s

-metolachlor are expected to be highly mobile to mobile in soil and water environments. A more detailed summary of the fate data are presented in**Appendix A**

.
Fielddissipationstudiesindicatethatmetolachlor/s

-metolachlorispersistentinsurfacesoilwithhalf lives ranging from 7 to 292 daysinthe upper six inch soil layer depending on geographic location. Metolachlor/s

-metolachlorwasreportedly detectedasdeepasthe36to48inchsoillayerinsomeof thestudies.MetolachlorOA(CGA

-51202),wasdetected(0.11ppm)asdeepasthe30

-36inchsoil depth(MRIDNo.41335701);CGA

-40172wasdetectedasdeepasthe36

-48inchdepth(MRIDNo. 41309802);CGA

-40919wasdetectedinthe36

-48inchdepth(0.21ppminMRIDNo.41309802); and CGA

-50720 was not detected (LOD = 0.07 ppm) in any soil segment at any

interval.

**3. Water Resources Summary** **:**

**3.1. Monitoring** **:**

S

-Metolachlor and its degradates ESA and OA have been detected extensively in surface water and groundwater. A more detailed summary of the monitoring data can be found in the Tolerance Reassessment Document (US EPA, 2002). Since the previous EDWCs for surface
waterfor the parent s

-metolachlor were based onNAWQAmonitoring data, a search of the availablemonitoring data was performed on March 30, 2010 to ensurethatthe most current monitoringdatawere considered in this assessment. The data set captured the timeframe of

# 5

October 1991 to October 2009 and included the parent s

-metolachlor and its degradates ESA and OA.Based on a review of the current monitoring data, concentrations of parent s

-metolachlor and its degradates were less than values reportedfrom thepreviousmonitoring data(US EPA, 2002). Therefore,EDWCsbased on previous monitoring are still valid. However, some ofthe previously

reportedEDWCs, which were based on monitoring data, were exceededbased on modeled concentrations derivedfromtheproposed uses in this assessment.

**3.2. Drinking Water Exposure Modeling** **:**
EDWCs were generated using EFED’s standard suite of models.The proposed uses from the provided label were assessed.Two specialtyscenarios, OR Berry OP and CA Cole Crop RLF

were used tocharacterize caneberry and leafyBrassica andturnip greens
, respectively

.

ThePesticide 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)was usedto generate EDWCs of the parent s

-metolachlorthat 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 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 Joneset al., 1998. The coupled PRZM/EXAMS model and users manuals may be downloaded from the U.S. Environmental Protection Agency

(EPA) Water Modelsweb

-page (USEPA, 2006). 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.

Inaddition,the standardFLcarrot scenario is basedon a sandy soil,although carrots in FL are oftentimes grown in muck soils. In order to characterize the potential impact on EDWCs based on FL carrots grown in muck soils, the organic carbon and bulk density parameters from the first soil horizon were modified from the standard carrot scenario. The percent organic carbon content of 1.16% was changed to 12.00%(Brady, 1990) and the bulk density was changed from 1.65 g/m3 

# to 1.50 g/m3

# to reflectmuck characteristics of the soil. The acute, chronic and cancer chronic EDWCs were 52.57 μg/L, 7.75 μg/L, and 4.99 μg/L, respectively. In general, EDWCs values generated using the muck soil scenario are lower than those derived based on the standard sandy soil FLcarrot scenario. These values are used to characterize EDWCs associated with carrots grown in muck soils and are further discussed as uncertainty in this assessment.

The FIRST (FQPAIndexReservoir ScreeningTool) model is a Tier I model usedto estimate both acute and chronicpesticide concentrations inuntreated drinking water. The FIRST model was employed to derive EDWCs for the ESA and OA degradates only

.

The SCI

-GROWmodel (v2.3, Jul. 29, 2003) is a regression

-based screening toolusedto estimate

# 6

pesticide concentrations found in ground water usedas drinking water. SCI

-GROW was developed by

fitting a linear model to ground water concentrations with the Relative Index of Leaching Potential (RILP) as the independent variable. Groundwater concentrations were taken from 90

-day

average high concentrations from Prospective Ground Water studies. The RILPis 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, whicharerepresentative of the ground water most vulnerable to pesticide contamination and likely to serve as a drinking water source. The SCI

-GROW model andUser’sManual may

also be downloaded from the EPA Water Models web

-page http://epa.gov/oppefed1/models/water/(USEPA, 2006).

**3.3. Surface Water** **Model Inputs :** 

Dueto the stability

and mobility

of the parent s

-metolachlor, the compoundmay move from the treated field to surface water through run

-offwhich occurs shortly after application (i.e. rainfall events). Because limited dataare available on the fate characteristics of the degradates ESA and OA,the aerobic soil metabolism rate constantwas conservatively estimatedusing the Comparative Aerobic Soil Metabolism Study (MRID 43928936) submitted to support bridging of fate data from the racemic to the s

-isomer of metolachlor. Aerobic soil metabolism half

-lives were estimated using only the decline portion of the data foreach degradate. Half

-lives for other parameters (i.e. aerobic aquatic metabolism, hydrolysis, photolysis) where no data were available were conservatively

assumed to be stable as per EFED guidance. An adsorption/desorption study (MRID 40494605) was previously submitted for metolachlor OA. The lowest non

-sand Kd value (0.079 mLg/oc for Maryland clay ) was selected for surface water degradate modeling
, and the lowest Koc measured for all available soil ty pes (2.82 L/kg oc for the Maryland clay ) was used f or groundwater modeling. An adsorption/desorption study (MRID 44931722) was previously

submitted for metolachlor ESA and is currently under review. The lowest non

-sand Kd value (0.041mLg/oc for Maryland clay ) was selected for surface water degradate modeling
, and the lowest Koc (2.01 L/kg oc for the Maryland sandy loam) was used for groundwater modeling.

The drinking water concentrations derived from surface water forthe parent s

-metolachlor and its degradates (ESA and OA)were estimated usingPRZM/EXAMS and FIRST models, respectivley. Input paremeters for s

-metalachlor, ESA, and OAare reported in**Tables 2** **, 3** **,** and **4**, respectively

. Model outputs are included in**Appendix B**

.

**Table 2** **. PRZM/EXAMS Input Parameters for S**

**- Metolachlor (Parent).**  **Input P arameter:**  **Value: Comment:**  **Source:**

# 7 **Table 2** **. PRZM/EXAMS Input Parameters for S**

**- Metolachlor (Parent).**  **Input P arameter:**  **Value: Comment:**  **Source:** Scenario(s): Sesame: KS Sorghum Melon: MI, MO, NJ Melons Bushberry: OR Berries Caneberry: OR Berries Sorghum: KS Sorghum Leafy (Brassica), Turnip Greens: CA Cole Crop Carrot: FL Carrot Cucumber: FL Cucumber Okra: CA, FL, PA Tomato Dry Bulb Onions: CA, GA Onions Green Onions: CA, GA Onions representative scenarios for each use N/A

Maximum Single Application Rate lbs a.i./A (kg a.i./ha) Sesame: 1.90 (2.13) Melon: 1.21 (1.36) Bushberry: 1.27 (1.43) Caneberry: 3.81 (4.28) Sorghum: 1.67 (1.88) Leafy (Brassica), Turnip Greens: 1.27 (1.43) Carrot (mineral soil): 1.27 (1.43) Carrot (muck soil): 1.90 (2.13) Cucumber: 1.27 (1.43) Okra: 1.90 (2.13) Dry Bulb Onions: 1.27 (1.43) Green Onions: 1.27 (1.43) proposed rates proposed label

Applications per Year Sesame: 1 Melon: 1 Bushberry: 1 Caneberry: 1 Sorghum: 1 Leafy (Brassica), Turnip Greens: 1 Carrot: 1 Cucumber: 1 Okra: 1 Dry Bulb Onions: 2 Green Onions: 1 label directions. Label specifies rates per season. If crops are rotated with those on which s

-metolachlor is used, yearly rates may be higher. proposed label

Application Interval (days) Sesame: N/A Melon: N/A Bushberry: N/A Caneberry: N/A Sorghum: N/A Leafy (Brassica), Turnip Greens: N/A Carrot: N/A Cucumber: N/A Okra: N/A Dry Bulb Onions: 21 Green Onions: N/A intervals were selected to reflect labeled application patterns. proposed label

# 8 **Table 2** **. PRZM/EXAMS Input Parameters for S**

**- Metolachlor (Parent).**  **Input P arameter:**  **Value: Comment:**  **Source:** Date of Initial Application (scenario/day/month) Sesame: KS Sorghum: 13

-05

Melon: MI Melon: 23

-04 MO Melon: 03

-04 NJ Melon: 24

-04

Bushberry: OR Berry: Highbush: 25

-03 OR Berry: Lowbush: 08

-04

Caneberry: OR Berry: 25

-03

Sorghum: KS Sorghum: 13

-05

Leafy (Brassica), Turnip Greens: CA Cole Crop: 25

-12

Carrot: FL Carrot: 09

-10

Cucumber: FL Cucumber: 09

-10

Okra: CA Tomato: 08

-03 FL Tomato: 08

-02 PA Tomato: 23

-04

Dry Bulb Onions: CA Onion: 23

-01 GA Onion: 22

-09

Green Onions: CA Onion: 23

-01 GA Onion: 22

-09 7 days before crop emergence was selected for
pre

-emergent applications.

7 days after crop emergence was selected for post

emergent applications.

Label directions were followed for ground surface band applications. Crop Scenarios

Application Method Foliar Ground: for pre

- and post

-emergent applications

Ground: for Surface Band Applications label directions proposed label

CAM Input 2

1 foliar

–ground

ground

- surface band proposed label

IPSCND Input 3

N/A remaining pesticide on foliage is retained as surface residue and continues to undergo decay.

ground

– surface band US EPA, 2005

# 9 **Table 2** **. PRZM/EXAMS Input Parameters for S**

**- Metolachlor (Parent).**  **Input P arameter:**  **Value: Comment:**  **Source:** Spray Drift Fraction 0.064 0 foliar

- ground ground

– surface band Input parameter guidance (USEPA, 2009) Application Efficiency 0.99 1.00 foliar

- ground ground

– surface band Input parameter guidance (USEPA, 2009) Molecular Mass (g/mol) 283.8 product chemistry data US EPA, 2002 TRED Vapor Pressure at 25°C (torr) 2.8 x 10

-5 product chemistry data US EPA, 2002 TRED

Henry’s Law Constant (atm

-m3/mol) 2.2 x 10

-8 calculated from volatility and solubility data registrant submitted data

Solubility in Water at 25oC (mg/L) 480 product chemistry data US EPA, 2002 TRED

Organic Carbon Partition Coefficient (Koc) (L/kg oc) 181 represents the average KOC represents the average value from all non

-paired adsorption data
Aerobic Soil Metabolism Half

-life (days) 48.9 represents the upper 90th percentile based on linear regression of all aerobic soil metabolism data for racemic and s

-metolachlor US EPA, 2002 TRED

Aerobic Aquatic Metabolism Half

-life (days) 141 based on three times the single aerobic aquatic metabolism linear first order half

-life MRID 41185701

Anaerobic Aquatic Metabolism Half

-life (days) 234 based on three times the single anaerobic aquatic metabolism linear first order half

-life MRID 41185701

Hydrolysis Half

-lives (days) 0 (stable) no data available; assume stable as conservative assumption US EPA, 2002 TRED

Aqueous Photolysis Half

-life (days) 70 US EPA, 2002 TRED

-N/A = Not Applicable

# 10 **Table 3** **: FIRST Input Parameters for the S**

**- Metolachlor** **Degradate Ethanesulfonic Acid (ESA) for Caneberry Use**

Parameter: Input Value: Data Source/Rationale: 1



# Application Rate (lbs a.i./acre) 0.53 2 

# EPA Reg. No. 100

-816

Maximum Number of Applications/Year 1 EPA Reg. No. 100

-816

Application Interval (days) NA EPA Reg. No. 100

-816

Percent Crop Area (as decimal) 0.87 National Default Value

Kd (mL/g oc) 0.041 MRID 44931722 (lowest non

-sand value)

Aerobic Soil Metabolism Half

-life (days) 162.5 MRID 43928936 (upper 90th percentile of linear first order half

-lives derived from decline portion of racemic (150.6 days) and s

-isomer (156.4 days) from paired aerobic soil metabolism data.

Is the pesticide wetted

-in? No Chemical not known to be activated by water

Method of Application D Granular Application 3



# Incorporation Depth (inches) 0 Broadcast Application

Water Solubility (ppm) 480 Product Chemistry Data (assumed to be equivalent to parent)

Aerobic Aquatic Metabolism Half

-life (days) 0 (stable) No datais available; entered zero for conservative assumption as suggested by FIRST users manual

Hydrolysis (pH 7) Half

-life (days) 0 (stable) No data is available; entered zero for conservative assumption as suggested by FIRST users manual

PhotolysisHalf

-life (days) 0 (stable) No data is available; entered zero for conservative assumption as suggested by FIRST users manual

1 

# Input Parameters were selected in accordance with the Guidance for Selecting Input Parameters Version 2.1 dated October 22, 2009
2 

# Application Rate of Degradate = (max. application rate of parent) x (fraction of maximum detected degradate) x (molecular weight of degradate/ molecular weight of parent) Caneberry = (3.81 lbs. a.i./acre) x (0.12) x (329.1/283.8) =0.53 lbs. a.i./acre
3 

# Granular method of application was selected for the degradate (Drift = 0.0% and App. Efficiency = 100%). NA = Not Applicable

# 11 **Table 4** **: FIRST Input Parameters for the S**

**- Metolachlor Degradate Oxanilic Acid (OA) for Caneberry Use** 

Parameter: Input Value: Data Source/Rationale: 1



# Application Rate (lbs a.i./acre) 1.05 2 

# EPA Reg. No. 100

-816

Maximum Number of Applications/Year 1 EPA Reg. No. 100

-816

Application Interval (days) NA EPA Reg. No. 100

-816

Percent Crop Area (as decimal) 0.87 National Default Value

Kd (mL/g oc) 0.079 MRID 40494605 (lowest non

-sand value)

Aerobic Soil Metabolism Half

-life (days) 127.5 MRID 43928936 (upper 90th percentile of linear first order half

-lives derived from decline portion of racemic (82.9 days) and s

-isomer (104.8 days) from paired aerobic soil metabolism data.

Is the pesticide wetted

-in? No Chemical not known to be activated by water

Method of Application D Granular Application 3



# Incorporation Depth (inches) 0 Broadcast Application

Water Solubility (ppm) 480 Product Chemistry Data (assumed to be equivalent to parent)

Aerobic Aquatic Metabolism Half

-life (days) 0 (stable) No data is available; entered zero for conservative assumption as suggested by FIRST users manual

Hydrolysis (pH 7) Half

-life (days) 0 (stable) No data is available; entered zero for conservative assumption as suggested by FIRST users manual

Photolysis Half

-life (days) 0 (stable) No data is available; entered zero for conservative assumption as suggested by FIRST users manual

1 

# Input Parameters were selected in accordance with the Guidance for Selecting Input Parameters Version 2.1 dated October 22, 2009
2 

# Application Rate of Degradate = (max.application rate of parent) x (fraction of maximum detected degradate) x (molecular weight of degradate/ molecular weight of parent) Caneberry = (3.81 lbs. a.i./acre) x (0.28) x (279.1/283.8) = 1.05 lbs. a.i./acre
3 

# Granular method of application was selected for the degradate (Drift = 0.0% and App. Efficiency = 100%). NA = Not Applicable

# 12

**3.4. Groundwater Modeling Inputs** **:**

Dueto the stability

and mobility

of theparent s

-metolachlor, the compoundmay move from the treated field to groundwater through leaching.

The drinking water concentrationsderived from groundwater forthe parent s

-metolachlor and its degradates ESA and OAwere estimated usingthe SCI

-GROW model. Input paremeters for s

metalachlor, ESA, and OAare reported in**Tables 5** **, 6** **,** and**7**, respectively

. Model outputs are included in**Appendix B**

.

**Table 5** **. SCI**

**- GROW Input Parameters for S** 

**- Metolachlor**  **for Caneberry Use Input Parameter**  **Value Comment**  **Source** Maximum Application Rate per growing season (lbs a.i./A) 3.81 maximum application rate representing caneberry proposed label

Applications per Year 1 label directions proposed label Organic Carbon Partition Coefficient (Koc) (L/kg oc) 21.6 lowest Koc value since there was a greater than three

fold difference within data set fromnon

-paired adsorption data US EPA, 2002 TRED

Aerobic Soil Metabolism Half

-life (days) 37.8 represents the median half

-life value of all aerobic soil metabolism data for racemic and s

-metolachlor since more than 4 half

-lives are available. US EPA, 2002 TRED



# Table**6 . SCI** 

**- GROW Input Parameters for the S** 

**- Metolachlor Degradate Ethanesulfonic Acid (ESA) for**  **Caneberry Use Input Parameter**  **Value Comment**  **Source** Maximum Application Rate per growing season (lbs a.i./A) 0.53 1 

# assumes 12% conversion of parentto degradate from the aerobic soil metabolism (MRID 43928936) study; application rate adjusted to parent equivalents using molecular weight proposed label

Applications per Year 1 label directions proposed label Organic Carbon Partition Coefficient (Koc) (L/kg oc) 2.01 lowest Koc value since there was a greater than three

-fold difference within data set from non

-paired adsorption data (MRID 44931722) US EPA, 2002 TRED

Aerobic Soil Metabolism Half

-life (days) 153.5 represents the median half

-life value of all aerobic soil metabolism data (MRID 43928936) for racemic and s

-metolachlor since more than 4 half

-lives are available. US EPA, 2002 TRED

1 

# Application Rate of Degradate = (max. application rate of parent) x (fraction of maximum detected degradate) x (molecular weight of degradate/ molecular weight of parent) Caneberry = (3.81 lbs. a.i./acre) x (0.12) x (329.1/283.8) = 0.53 lbs. a.i./acre

# 13

**Table 7** **. SCI**

**- GROW Input Parameters for the S** 

**- Metolachlor Degradate Oxanilic Acid (OA) for**  **Caneberr y Use**  **Input Parameter Value**  **Comment Source**  Maximum Application Rate per growing season (lbs a.i./A) 1.05 1 

# assumes 28% conversion of parent to degradate from the aerobic soil metabolism (MRID 41309801) study; application rate adjusted to parent equivalents using molecular weight proposed label

Applications per Year 1 label directions proposed label Organic Carbon Partition Coefficient (Koc) (L/kg oc) 2.82 lowest Koc value since there was a greater than three

-fold difference within data set from non

-paired adsorption data (MRID 40494605) US EPA, 2002 TRED

Aerobic Soil Metabolism Half

-life (days) 93.8 represents the median half

-life value of all aerobic soil metabolism data (MRID 43928936) for racemic and s

-metolachlor since more than 4 half

-lives are available. US EPA, 2002 TRED

1 

# Application Rate of Degradate = (max. application rate of parent) x (fraction of maximum detected degradate) x (molecular weight of degradate/ molecular weight of parent) Caneberry = (3.81 lbs. a.i./acre) x (0.28)x (279.1/283.8) = 1.05 lbs. a.i./acre



# 3.5. **Modeling Results :** 

For this assessment, the surface and groundwaterEDWCs for the parent s

-metolachlor andits degradates ESA and OA are presented in**Tables 8** **, 9** **, and 10** , respectively

.For drinking water derived from surface water for the parent s

-metolachlor, the maximumreported acute concentration of 71.33 μg/L for the Florida carrot (mineral soil) scenario does not exceed the previous EDWC of 77.6 μg/Lfrom the monitoring data reported in the previous drinking water assessment (D324967) dated 20 March 2006. However, the maximum annual mean (chronic) concentration of 18.15 μg/L from the California Cole Crop scenario and the maximum 30 year annual average concentration of 9.15 μg/L from the Kansas Sorghum scenario exceed the previous reported EDWC of 4.3 μg/L from the monitoring data reported in the previous drinking water assessment. For the degradate ESA, the FIRST model’s acute and chronic (annual average) concentrations of 47.61 μg/L and 34.04 μg/L, respectively
, exceed the previously reported EDWCs of 31.9 μg/L and 22.8 μg/Lfrom the modeling data reported in the previous drinking water assessment

. For the degradate OA, the FIRST model’s acute and chronic (annual average) concentrations of 93.57 μg/L and 66.62 μg/L
, respectively
, exceed the previously reported EDWCs of 91.4 μg/L and 65.1 μg/Lfrom the modeling data reported in the previous drinking water assessment.

For drinking water derived from groundwater for the parent s

-metolachlor, the SCI

-GROW model’s acute and chronic concentration of 5.26 μg/L does not exceed the previously reported EDWC of 32.8μg/Lfrom the monitoring data reported in the previous drinking water assessment. For the degradate ESA, the SCI

-GROW model’s acute and chronic concentration of

# 14

45.9 μg/Ldoes not exceed the previously reported EDWC of 63.7μg/Lfrom the monitoring data reported in the previous drinking water assessment. However, for the degradate OA, the SCI

GROW model’s acute and chronic concentration of 29.7 μg/L does exceed the previously reported EDWC of 13.4μg/L from the monitoring data reported in the previous drinking water
assessment.

**Table 8** **. Estim ated Drinking Water Concentrations (EDWCs) resulting from** **applications of S**

**- Metolachlor.**  **Drinking Water Source (** **mo del)**  **Use Scenario**

**(m odeled rate)**  **1**

**- in** 

**- 10 year**  **acute (μg/L) 1** 

**- in** 

**- 10 year** 

**chronic (μg/L) 30** 

**- year average**  **(μg/L)**
Surface Water (PRZM/EXAMS) (Previous EDWCs for Surface Water) (77.6) (4.3) (4.3)

Sesame: KS Sorghum

–pre

-emergence KS Sorghum

–ground surface band (1 app. @ 1.90 lbs ai/acre) 57.77 54.23 16.08

15.07 **9.15**

8.07

Melon: MI Melon

-pre

-emergence MI Melon

–ground surface band MO Melon

-pre

-emergence MO Melon

–ground surface band NJ Melon

-pre

-emergence NJ Melon

–ground surface band (1 app. @ 1.21 lbs ai/acre) 20.71 18.14 49.59 47.28 25.02 22.41 7.29

6.37 9.39 8.95 7.33 6.53 3.73

2.38 3.59 3.11 3.38 2.53

Bushberry: OR Berries

–post

-emergence OR Berries

–ground surface band (1 app. @ 1.27 lbs ai/acre) 7.72 12.07 3.02

6.04 1.98

2.00

Caneberry: OR Berries

–ground surface band (1 app. @ 3.81 lbs ai/acre) 51.10 18.07 6.00

Sorghum: KS Sorghum

-pre

-emergence (1 app. @ 1.67 lbs ai/acre) 50.98 14.19 8.08

Leafy (Brassica), Turnip Greens: CA Cole Crop

-pre

-emergence (1 app. @ 1.27 lbs ai/acre) 41.46 **18.15** 8.63

Carrot: FL Carrot (mineral soil)

-pre

emergence (1 app. @ 1.27 lbs ai/acre) 71.33 9.96 5.59

Cucumber: FL Cucumber

-pre

-emergence (1 app. @ 1.27 lbs ai/acre) 73.64 9.71 5.57

# 15

**Table 8** **. Estim ated Drinking Water Concentrations (EDWCs) resulting from** **applications of S**

**- Metolachlor.**  **Drinking Water Source (** **mo del)**  **Use Scenario**

**(m odeled rate)**  **1**

**- in** 

**- 10 year**  **acute (μg/L) 1** 

**- in** 

**- 10 year** 

**chronic (μg/L) 30** 

**- year average**  **(μg/L)**
Surface Water (PRZM/EXAMS) (Previous EDWCs for Surface Water) (77.6) (4.3) (4.3)

Okra: CA Tomato

-post

-emergence CA Tomato

–ground surface band FL Tomato

-post

-emergence FL Tomato

–ground surface band PA Tomato

-post

-emergence PA Tomato

–ground surface band (1 app. @ 1.90 lbs ai/acre) 16.83 11.05 52.51 48.35 28.56 24.13 7.61

4.85 7.13 6.38 9.26 7.62 4.80

2.28 3.52 2.92 4.69 3.22

Dry Bulb Onions: CA Onion

-post

-emergence CA Onion

–ground surface band GA Onion

-post

-emergence GA Onion

–ground surface band (2 app. @ 1.27 lbs ai/acre Application Interval = 21 days) 21.90 14.80 70.41 67.10 10.45

6.75 13.03 11.81 5.32

1.82 5.81 4.69

Green Onions: CA Onion

-post

-emergence CA Onion

–ground surface band GA Onion

-post

-emergence GA Onion

–ground surface band (1 app. @ 1.27 lbs ai/acre 10.27 6.59 42.17 39.76 5.16

3.18 6.12 5.61 2.90

1.11 3.25 2.73

Groundwater (SCI

-GROW) (Previous EDWCs for Groundwater)

Caneberry: (1 app. @ 3.81 lbs a.i./acre) (32.8)

5.26 (32.8)

5.26 (32.8)

5.26

Bold text denotes maximum estimated EDWC values from the proposed uses

. PRZM/EXAMS values adjusted with PCA factor of 0.87.

# 16

**Table 9** **. Estim ated Drinking Water Concentrations (EDWCs) resulting from** **applications of S**

**- Metolachlor**  **Degradate Ethanesulfonic Acid (ESA) for Caneberry Use. Drinking Water**  **Source (m odel)**  **Use Scenario**

**(m odeled rate)**  **Peak Day**  **Acute (μg/L) Annual Average**  **Chronic (μg/L)**
Surface Water (FIRST) (Previous EDWCs for Surface Water)

Caneberry: (1 app. @ 0.531 lbs ai/acre) (31.9)

**47.61** (22.8)

**34.04**

Groundwater (SCI

-GROW) (Previous EDWCs for Groundwater)

Caneberry: (1 app. @ 0.53 lbs a.i./acre) (63.7)

45.9 (63.7)

45.9

1 

# = Application Rate of Degradate = (max. application rate of parent) x (fraction of maximum detected degradate) x (molecular weight of degradate/ molecular weight of parent) Caneberry = (3.81 lbs. a.i./acre) x (0.12) x (329.1/283.8) = 0.53 lbs. a.i./acre Note: FIRST program automatically adjusts EDWC value with PCA factor of 0.87.

**Table 10** **. Estim ated Drinking Water Concentrations (EDWCs) resulting from** **applications of S**

**- Metolachlor**  **Degradate Oxanilli c Acid (OA) for Caneberry Use.**  **Drinking Water Source (m** **odel) Use Scenario** 

**(m odeled rate)**  **Peak Day Acute (μg/L)**  **Annual Average Chronic (μg/L)** 
Surface Water (FIRST) (Previous EDWCs for Surface Water)

Caneberry: (1 app. @ 1.051 lbs ai/acre) (91.4)

**93.57** (65.1)

**66.62**

Groundwater (SCI

-GROW) (Previous EDWCs for Groundwater)

Caneberry: (1 app. @ 1.05 lbs a.i./acre) (13.4)

**29.7** (13.4)

**29.7**

1 

# = Application Rate of Degradate = (max. application rate of parent) x (fraction of maximum detected degradate)x (molecular weight of degradate/ molecular weight of parent) Caneberry = (3.81 lbs. a.i./acre) x (0.28) x (279.1/283.8) = 1.05 lbs. a.i./acre Note: FIRST program automatically adjusts EDWC value with PCA factor of 0.87.



# 4. **Uncertainties :** 

Inorderto characterize EDWCs for carrots grown in muck soils, the organic carbon and bulk density parameters from the first soil horizon were modified from the standard carrot scenario. Based on these modifications, the predicted acute, chronic, and cancer chronic EDWCs for FL carrots grown in muck soils are 52.57 μg/L, 7.75 μg/L, and 4.99 μg/L, respectively. Predicted EDWCs for FLcarrots grown in muck soils are generally lower that EDWCs based on the standard sandy

soil scenario. EDWCs are presented for compa rative purposes only

and are not included in**Table 8** of the risk assessment. Therefore, it is possible that FL carrot EDWCs presented in**Table 8**may overestimate exposure for carrots grown in muck scenarios

.

# 17

**References:**

Brady N.C. 1990. The Nature and Properties of Soils. 10th

# Edition. MacMillan Publishing Company, NY.

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

US EPA. 2002. Revised Metolachlor/S

-Metolachlor Tolerance Reassessment Document (TRED), D248805, D228814, D258817, D258824, D258822, D258812, D259119, D259037, D259034).

US EPA. 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.

US EPA. 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.

US EPA. 2010. Water Models. U.S. Environmental Protection Agency, Pesticides: Science and Policy.Last updated: November 25, 2009. Online at: http://www.epa.gov/oppefed1/models/water/

# 18



# Appendix**A :**  **Environmental Fate Assessment (from the 1994 RED)** 

Metolachlor appears to be stable to hydrolysis at pH’s of 5, 7, and 9 without significant degradation of parent material after 30 days.
The aqueous photolysis half

-life was 70 days when exposed to natural sunlight and 0.17 day when exposed to artificial sunlight (450 watt mercury arc lamp withlight intensity of 4500

-4800 uW/cm2). After 30 days exposure to natural sunlight the degradation products were CGA

-41638 (3.63% of applied radiocarbon), CGA

-51202 (3.54%), CGA

-46129 (3.42%), CGA

-50720 (3.20%), and parent metolachlor remaining was 62.92%.

The soil photolysis half

-life of metolachlor when exposed to natural sunlight was 8 days, and when exposed to artificial light conditions (mercury arc lamp with intensity

of 1600

-2400 uW/cm2) the half

-life was 37 days. The major degradates reported after 21 days exposure to natural sunlight were CGA

-51202 (maximum of 3.4% of applied radiocarbon), CGA

-37735 (9.0%), CGA

-41638 (5.7%), and CGA

-37913 (7.3%).

Under aerobic soil conditions metolachlor degraded with a half

-life of 67 days in a sandy loam soil. The major metabolite was CGA

-51202 (maximum of 28.09% of applied radioactivity at 90 days posttreatment). Other identified metabolites were CGA

-37735 (maximum of 14.85% at 272 days), CGA

-41638 (maximum of 2.06% at 90 days), and CGA

-13656 (maximum of 1.02% immediately

posttreatment). Other metabolites were detected but not quantified were CGA

40172, CGA

-41507, CGA

-40919, and CGA

-37913.

The aerobic aquatic metabolism half

-life of metolachlor was 47 days. The major metabolites in the sediment were CGA

-41507 (3.34% of applied radiocarbon at 29 days), CGA

-50720 (1.17%), CGA

-40172 (1.13%), CGA

-46127 (1.54%), and parent metolachlor was 34.56%. In the water fraction after 29 days incubation parent metolachlor was 30.90% and the metabolite CGA

-41507 was 1.21% and CGA

-51202 was 1.9(%.

Under anaerobic soil conditions metolachlor degraded with a half

-life of 81 days in a sandy loam soil that was incubated under anaerobic conditions for 60 days at 25oC following 30 days of aerobic incubation. The major degradate in both the soil and flood water was CGA

-51202 (maximum of 23.33% of applied radiocarbon at 29 days after anaerobic conditions were established); and other reported degradates were CGA

-37735 (1.25% at 29 days), CGA

-41638 (8.3% at 60 days), CGA

-13656 (1.46%at 29 days), and CGA

-50720 (maximum of 7.34% at 60 days).

The anaerobic aquatic metabolism half

-life for metolachlor was 78 days. In the anaerobic waters the major degradates were CGA

-40172 (maximum of 5.64% at 12 months), CGA

-37913 (maximum of 4.28% at6 months), CGA

-46127 (maximum of 4.69% at 12 months) and CGA

41507 (maximum of 4.85% at 6 months). The major degradates in sediment were CGA

-41507 (maximum of 15.88% of applied radiocarbon at 12 months), CGA

-40172 (maximum of 3.18% at

# 19

12 months), CGA

-46127 (maximum of 13.02% at 12 months), CGA

-50720 (maximum of 1.67% at 29 days), and CGA

-37913 (maximum of 2.33% at 6 months), and after 12 months the sediment contained 1.47% parent metolachlor.

Inthe unaged portion of the leaching and adsorption and desor ption study

metolachlor was shown to range from being highly mobile in a sand soil (kd value of 0.08) to being moderately mobile (Kd value of 4.81 in a sandy loam) from column leaching studies using four soils. The leachate contained from 15.03% to 82.91% (comprised of 75.5% parent metolachlor, 1.14% of CGA

-51202, 3.69% of CGA

-37735, and 2.26% CGA

-41638) of the applied radioactivity. In batch equilibrium studies employing the same four soils, the Freundlich adsorption (Kad) values ranged from 0.108 to 2.157. These data indicate that metolachlor has the potential to range from being moderately

mobile material (clay

soil and sandy

loam soil) to being a highly mobile material (loam soil and sand soil).

Inthe aged leaching portion of the leaching and adsorption and desorption study the reported cumulated Kd for aged metolachlor and its degradates in columns of an Iowa sandy loam soil was 2.01. This indicates that metolachlor and its identified degradates (CGA

-51202, CGA

37735, and CGA

-41638) have the potential to be mobile since in other studies it was shown that metolachlor and its CGA

-51202 degradate leached the slowest in the Iowa sandy loam soil compared to their leaching rate in the other three soils tested. Batch equilibrium studies showed that CGA

-51202 has the potential to be extremely mobile with reported Freundlich adsorption (Kad) values ranging from 0.04 in the Maryland sand to 0.171 in the Iowa sandy loam soil.

Laboratory

volatility studies indicated that volatility is not a significant mode ofdissipation for metolachlor from soil. The maximum dissipation was 0.05% of the metolachlor dose volatilizing per day

.

Innumerous terrestrial field dissipation studies using metolachlor (Dual 8E and Dual 25G) both applied at 4 and 6 lb ai/A the half life of metolachlor in the 6

-12 inch soil layer ranged from 7 days (Iowa) to 292 days (California) with a range of the total water applied ranging from 16.97 inches to > 40 inches during the study period. Detections of metolachlor were made as far as the 36

-48 inch soil layer in some of the tests. The degradate CGA

-40172 (0.07 ppm) and CGA

40919 (0.21 ppm) were detected in the 36

-48 inch soil layers in one Iowa site. CGA

-50720 was not detected (0.07 ppm) in any soil sampled at any

interval.

Metolachlor appears to have a low potential to bioaccumulate in fish with a reported whole body bioconcentration factor of 69X and a whole body elimination of 93% after 14 days depuration.

# 20



# Appendix **B :**  **Modeling Outputs**

**PRZ M/EXAMS**  **Outputs :** 

# 21 stored as sesameKSsorghum pre dw.out Chemical: S-Metolachlor PRZM environment: KSsorghumSTD.txt modified Tueday, 29 May 2007 at 13:55:46 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 27.65 27.08 24.89 21.66 19.35 7.55 1962 52.39 51.12 47.16 39.05 33.72 13.69 1963 24.77 24.25 22.76 19.43 17.24 8.34 1964 26.47 25.85 24.01 20.02 17.74 7.80 1965 24.94 24.58 23.11 20.09 17.59 7.82 1966 30.92 30.44 27.84 22.70 19.61 8.58 1967 37.52 36.73 34.02 29.53 25.85 11.23 1968 17.07 16.66 15.51 13.44 12.26 6.60 1969 27.81 27.18 26.21 21.73 18.76 8.40 1970 48.88 48.14 45.94 41.54 36.44 14.92 1971 20.18 19.77 18.35 16.40 14.47 7.42 1972 10.55 10.31 9.73 8.99 8.54 4.51 1973 37.52 36.78 33.24 28.35 25.16 10.35 1974 32.90 32.18 29.39 27.21 24.45 10.99 1975 23.65 23.35 21.68 19.12 16.84 7.87 1976 29.10 28.51 26.03 21.66 19.33 8.37 1977 66.82 65.30 62.26 53.86 46.81 18.49 1978 62.65 61.20 56.42 48.90 42.52 18.34 1979 15.27 14.92 13.74 12.58 11.26 7.16 1980 39.64 38.71 34.85 28.65 24.70 10.06 1981 70.72 69.22 63.51 53.31 46.13 18.64 1982 19.88 19.49 18.21 16.05 14.30 7.83 1983 36.21 35.58 33.80 29.06 25.30 10.13 1984 42.50 41.59 38.06 33.84 29.63 12.44 1985 32.92 32.17 29.62 26.45 23.75 10.93 1986 43.42 42.47 38.73 32.92 29.11 12.46 1987 27.40 26.74 25.24 22.84 20.03 9.28 1988 24.86 24.33 22.27 20.26 19.02 8.83 1989 21.10 20.65 18.91 17.46 16.03 7.63 1990 72.59 71.10 65.20 55.19 48.16 19.04

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 72.59 71.10 65.20 55.19 48.16 19.04 0.06 70.72 69.22 63.51 53.86 46.81 18.64 0.10 66.82 65.30 62.26 53.31 46.13 18.49 0.13 62.65 61.20 56.42 48.90 42.52 18.34 0.16 52.39 51.12 47.16 41.54 36.44 14.92 0.19 48.88 48.14 45.94 39.05 33.72 13.69 0.23 43.42 42.47 38.73 33.84 29.63 12.46 0.26 42.50 41.59 38.06 32.92 29.11 12.44 0.29 39.64 38.71 34.85 29.53 25.85 11.23 0.32 37.52 36.78 34.02 29.06 25.30 10.99 0.35 37.52 36.73 33.80 28.65 25.16 10.93 0.39 36.21 35.58 33.24 28.35 24.70 10.35 0.42 32.92 32.18 29.62 27.21 24.45 10.13 0.45 32.90 32.17 29.39 26.45 23.75 10.06 0.48 30.92 30.44 27.84 22.84 20.03 9.28 0.52 29.10 28.51 26.21 22.70 19.61 8.83 0.55 27.81 27.18 26.03 21.73 19.35 8.58 0.58 27.65 27.08 25.24 21.66 19.33 8.40 0.61 27.40 26.74 24.89 21.66 19.02 8.37 0.65 26.47 25.85 24.01 20.26 18.76 8.34 0.68 24.94 24.58 23.11 20.09 17.74 7.87 0.71 24.86 24.33 22.76 20.02 17.59 7.83 0.74 24.77 24.25 22.27 19.43 17.24 7.82 0.77 23.65 23.35 21.68 19.12 16.84 7.80 0.81 21.10 20.65 18.91 17.46 16.03 7.63 0.84 20.18 19.77 18.35 16.40 14.47 7.55 0.87 19.88 19.49 18.21 16.05 14.30 7.42 0.90 17.07 16.66 15.51 13.44 12.26 7.16 0.94 15.27 14.92 13.74 12.58 11.26 6.60 0.97 10.55 10.31 9.73 8.99 8.54 4.51

0.10 66.40 64.89 61.68 52.87 45.77 18.48 Average of yearly averages: 10.52

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: sesameKSsorghum pre dw Metfile: w13996.dvf PRZM scenario: KSsorghumSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 2.13 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 13-05 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 22 stored as sesameKSsorghum gsb dw.out Chemical: S-Metolachlor PRZM environment: KSsorghumSTD.txt modified Tueday, 29 May 2007 at 13:55:46 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 23.37 22.89 21.07 18.54 16.54 6.45 1962 48.52 47.34 43.74 36.29 31.34 12.48 1963 20.03 19.62 18.44 15.92 14.24 7.10 1964 23.12 22.57 20.96 17.35 15.18 6.56 1965 21.25 20.84 19.70 17.01 14.89 6.54 1966 27.49 27.08 24.79 20.12 17.39 7.31 1967 34.05 33.34 30.78 26.67 23.35 9.94 1968 13.57 13.25 12.22 10.59 9.57 5.27 1969 24.50 23.94 23.05 19.18 16.56 7.10 1970 45.17 44.52 42.32 38.19 33.57 13.71 1971 15.71 15.33 14.26 13.08 11.62 6.13 1972 7.89 7.70 7.36 6.44 5.95 3.18 1973 33.67 33.02 29.84 25.32 22.56 9.08 1974 29.30 28.67 26.19 23.67 21.41 9.74 1975 20.06 19.75 18.17 15.87 14.06 6.59 1976 24.65 24.14 22.05 18.35 16.29 7.08 1977 62.70 61.25 58.53 50.90 44.28 17.34 1978 58.99 57.57 53.15 46.29 40.28 17.17 1979 12.28 12.00 11.10 9.86 8.82 5.86 1980 35.69 34.85 31.37 25.69 22.20 8.85 1981 66.46 65.05 59.70 50.25 43.48 17.49 1982 15.68 15.38 14.46 12.46 11.15 6.52 1983 31.73 31.20 29.41 25.51 22.25 8.88 1984 38.40 37.58 34.42 30.92 27.13 11.22 1985 29.14 28.48 26.23 22.89 20.71 9.67 1986 38.81 37.97 34.63 29.59 26.27 11.24 1987 23.95 23.37 21.90 19.89 17.50 8.04 1988 22.14 21.64 19.83 17.05 16.27 7.59 1989 16.33 15.99 14.77 14.01 13.06 6.33 1990 68.15 66.75 61.22 52.00 45.43 17.87

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 68.15 66.75 61.22 52.00 45.43 17.87 0.06 66.46 65.05 59.70 50.90 44.28 17.49 0.10 62.70 61.25 58.53 50.25 43.48 17.34 0.13 58.99 57.57 53.15 46.29 40.28 17.17 0.16 48.52 47.34 43.74 38.19 33.57 13.71 0.19 45.17 44.52 42.32 36.29 31.34 12.48 0.23 38.81 37.97 34.63 30.92 27.13 11.24 0.26 38.40 37.58 34.42 29.59 26.27 11.22 0.29 35.69 34.85 31.37 26.67 23.35 9.94 0.32 34.05 33.34 30.78 25.69 22.56 9.74 0.35 33.67 33.02 29.84 25.51 22.25 9.67 0.39 31.73 31.20 29.41 25.32 22.20 9.08 0.42 29.30 28.67 26.23 23.67 21.41 8.88 0.45 29.14 28.48 26.19 22.89 20.71 8.85 0.48 27.49 27.08 24.79 20.12 17.50 8.04 0.52 24.65 24.14 23.05 19.89 17.39 7.59 0.55 24.50 23.94 22.05 19.18 16.56 7.31 0.58 23.95 23.37 21.90 18.54 16.54 7.10 0.61 23.37 22.89 21.07 18.35 16.29 7.10 0.65 23.12 22.57 20.96 17.35 16.27 7.08 0.68 22.14 21.64 19.83 17.05 15.18 6.59 0.71 21.25 20.84 19.70 17.01 14.89 6.56 0.74 20.06 19.75 18.44 15.92 14.24 6.54 0.77 20.03 19.62 18.17 15.87 14.06 6.52 0.81 16.33 15.99 14.77 14.01 13.06 6.45 0.84 15.71 15.38 14.46 13.08 11.62 6.33 0.87 15.68 15.33 14.26 12.46 11.15 6.13 0.90 13.57 13.25 12.22 10.59 9.57 5.86 0.94 12.28 12.00 11.10 9.86 8.82 5.27 0.97 7.89 7.70 7.36 6.44 5.95 3.18

0.10 62.33 60.88 57.99 49.85 43.16 17.32 Average of yearly averages: 9.28

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: sesameKSsorghum gsb dw Metfile: w13996.dvf PRZM scenario: KSsorghumSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 2.13 kg/ha Application Efficiency: APPEFF 1 fraction Spray Drift DRFT 0 fraction of application rate applied to pond Application Date Date 13-05 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 23 stored as MImelon pre dw.out Chemical: S-Metolachlor PRZM environment: MImelonStd.txt modified Monday, 25 August 2008 at 15:48:30 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w94847.dvf modified Tueday, 26 August 2008 at 06:16:34 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 24.67 24.46 23.38 20.73 18.85 8.53 1962 13.39 13.23 12.52 11.09 10.14 6.40 1963 7.02 6.93 6.63 6.07 5.71 3.72 1964 11.35 11.21 10.59 9.47 8.66 4.60 1965 6.15 6.06 5.72 5.09 5.01 3.34 1966 15.98 15.79 15.01 13.96 12.94 6.58 1967 6.30 6.24 6.02 5.65 5.28 3.72 1968 7.50 7.41 7.02 6.24 5.75 3.36 1969 8.88 8.77 8.53 7.65 6.97 3.89 1970 4.95 4.90 4.66 4.32 4.01 2.53 1971 4.16 4.12 3.92 3.65 3.35 1.92 1972 3.97 3.93 3.74 3.33 3.12 1.78 1973 3.97 3.92 3.73 3.33 3.03 1.68 1974 6.41 6.33 6.02 5.32 4.83 2.59 1975 4.44 4.39 4.18 3.99 3.77 2.27 1976 31.77 31.37 30.47 27.37 24.86 11.63 1977 44.34 43.80 41.38 36.53 33.30 17.29 1978 10.99 10.92 10.65 10.05 9.62 7.05 1979 9.19 9.09 8.71 7.88 7.23 4.26 1980 5.33 5.26 5.09 4.85 4.62 2.90 1981 5.12 5.06 4.82 4.30 3.93 2.27 1982 4.13 4.08 3.88 3.52 3.28 1.90 1983 15.69 15.48 14.67 13.01 11.80 5.63 1984 6.82 6.74 6.38 5.80 5.56 3.72 1985 4.64 4.59 4.36 4.14 3.89 2.41 1986 6.86 6.76 6.35 5.52 5.01 2.93 1987 5.39 5.34 5.02 4.45 4.36 2.71 1988 4.34 4.29 4.08 3.61 3.28 1.92 1989 6.47 6.37 6.08 5.33 4.82 2.72 1990 4.96 4.90 4.69 4.46 4.15 2.47

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 44.34 43.80 41.38 36.53 33.30 17.29 0.06 31.77 31.37 30.47 27.37 24.86 11.63 0.10 24.67 24.46 23.38 20.73 18.85 8.53 0.13 15.98 15.79 15.01 13.96 12.94 7.05 0.16 15.69 15.48 14.67 13.01 11.80 6.58 0.19 13.39 13.23 12.52 11.09 10.14 6.40 0.23 11.35 11.21 10.65 10.05 9.62 5.63 0.26 10.99 10.92 10.59 9.47 8.66 4.60 0.29 9.19 9.09 8.71 7.88 7.23 4.26 0.32 8.88 8.77 8.53 7.65 6.97 3.89 0.35 7.50 7.41 7.02 6.24 5.75 3.72 0.39 7.02 6.93 6.63 6.07 5.71 3.72 0.42 6.86 6.76 6.38 5.80 5.56 3.72 0.45 6.82 6.74 6.35 5.65 5.28 3.36 0.48 6.47 6.37 6.08 5.52 5.01 3.34 0.52 6.41 6.33 6.02 5.33 5.01 2.93 0.55 6.30 6.24 6.02 5.32 4.83 2.90 0.58 6.15 6.06 5.72 5.09 4.82 2.72 0.61 5.39 5.34 5.09 4.85 4.62 2.71 0.65 5.33 5.26 5.02 4.46 4.36 2.59 0.68 5.12 5.06 4.82 4.45 4.15 2.53 0.71 4.96 4.90 4.69 4.32 4.01 2.47 0.74 4.95 4.90 4.66 4.30 3.93 2.41 0.77 4.64 4.59 4.36 4.14 3.89 2.27 0.81 4.44 4.39 4.18 3.99 3.77 2.27 0.84 4.34 4.29 4.08 3.65 3.35 1.92 0.87 4.16 4.12 3.92 3.61 3.28 1.92 0.90 4.13 4.08 3.88 3.52 3.28 1.90 0.94 3.97 3.93 3.74 3.33 3.12 1.78 0.97 3.97 3.92 3.73 3.33 3.03 1.68

0.10 23.80 23.59 22.54 20.05 18.26 8.38 Average of yearly averages: 4.29

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: MImelon pre dw Metfile: w94847.dvf PRZM scenario: MImelonStd.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.36 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 23-04 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 24 stored as MImelon gsb dw.out Chemical: S-Metolachlor PRZM environment: MImelonStd.txt modified Monday, 25 August 2008 at 15:48:30 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w94847.dvf modified Tueday, 26 August 2008 at 06:16:34 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 21.76 21.58 20.66 18.31 16.65 7.52 1962 9.93 9.81 9.29 8.25 7.56 4.96 1963 3.59 3.55 3.41 3.14 2.88 2.14 1964 7.69 7.60 7.17 6.40 5.87 3.02 1965 3.18 3.13 2.95 2.61 2.38 1.73 1966 12.63 12.48 11.86 10.88 10.08 5.01 1967 3.54 3.52 3.43 3.23 3.09 2.10 1968 4.38 4.33 4.09 3.58 3.25 1.76 1969 5.51 5.44 5.30 4.79 4.36 2.31 1970 1.59 1.58 1.54 1.45 1.39 0.96 1971 0.59 0.58 0.55 0.49 0.45 0.34 1972 0.37 0.37 0.35 0.30 0.28 0.18 1973 0.13 0.13 0.13 0.12 0.12 0.07 1974 3.00 2.95 2.81 2.47 2.23 1.00 1975 1.30 1.28 1.20 1.06 0.96 0.68 1976 28.25 27.90 27.17 24.45 22.21 10.15 1977 40.94 40.44 38.21 33.69 30.72 15.88 1978 10.14 10.07 9.82 9.26 8.87 5.51 1979 5.49 5.44 5.20 4.75 4.38 2.66 1980 2.17 2.15 2.05 1.91 1.77 1.29 1981 1.27 1.25 1.19 1.08 0.99 0.66 1982 0.46 0.45 0.44 0.42 0.39 0.29 1983 12.13 11.97 11.33 10.03 9.08 4.07 1984 3.68 3.64 3.45 3.03 2.76 2.16 1985 1.32 1.30 1.24 1.11 1.01 0.82 1986 4.01 3.95 3.70 3.20 2.88 1.36 1987 2.47 2.44 2.30 2.02 1.83 1.17 1988 0.77 0.76 0.74 0.70 0.67 0.40 1989 3.54 3.49 3.30 2.88 2.60 1.16 1990 1.63 1.61 1.54 1.38 1.27 0.89

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 40.94 40.44 38.21 33.69 30.72 15.88 0.06 28.25 27.90 27.17 24.45 22.21 10.15 0.10 21.76 21.58 20.66 18.31 16.65 7.52 0.13 12.63 12.48 11.86 10.88 10.08 5.51 0.16 12.13 11.97 11.33 10.03 9.08 5.01 0.19 10.14 10.07 9.82 9.26 8.87 4.96 0.23 9.93 9.81 9.29 8.25 7.56 4.07 0.26 7.69 7.60 7.17 6.40 5.87 3.02 0.29 5.51 5.44 5.30 4.79 4.38 2.66 0.32 5.49 5.44 5.20 4.75 4.36 2.31 0.35 4.38 4.33 4.09 3.58 3.25 2.16 0.39 4.01 3.95 3.70 3.23 3.09 2.14 0.42 3.68 3.64 3.45 3.20 2.88 2.10 0.45 3.59 3.55 3.43 3.14 2.88 1.76 0.48 3.54 3.52 3.41 3.03 2.76 1.73 0.52 3.54 3.49 3.30 2.88 2.60 1.36 0.55 3.18 3.13 2.95 2.61 2.38 1.29 0.58 3.00 2.95 2.81 2.47 2.23 1.17 0.61 2.47 2.44 2.30 2.02 1.83 1.16 0.65 2.17 2.15 2.05 1.91 1.77 1.00 0.68 1.63 1.61 1.54 1.45 1.39 0.96 0.71 1.59 1.58 1.54 1.38 1.27 0.89 0.74 1.32 1.30 1.24 1.11 1.01 0.82 0.77 1.30 1.28 1.20 1.08 0.99 0.68 0.81 1.27 1.25 1.19 1.06 0.96 0.66 0.84 0.77 0.76 0.74 0.70 0.67 0.40 0.87 0.59 0.58 0.55 0.49 0.45 0.34 0.90 0.46 0.45 0.44 0.42 0.39 0.29 0.94 0.37 0.37 0.35 0.30 0.28 0.18 0.97 0.13 0.13 0.13 0.12 0.12 0.07

0.10 20.85 20.67 19.78 17.57 15.99 7.32 Average of yearly averages: 2.74

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: MImelon gsb dw Metfile: w94847.dvf PRZM scenario: MImelonStd.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.36 kg/ha Application Efficiency: APPEFF 1 fraction Spray Drift DRFT 0 fraction of application rate applied to pond Application Date Date 23-04 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 25 stored as MOmelon pre dw.out Chemical: S-Metolachlor PRZM environment: MOmelonStd.txt modified Monday, 25 August 2008 at 15:50:48 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w13893.dvf modified Tueday, 26 August 2008 at 06:14:40 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 12.74 12.38 11.00 8.52 7.16 2.48 1962 7.01 6.80 5.94 5.24 4.56 1.67 1963 12.25 11.89 10.52 9.01 7.61 2.64 1964 38.30 37.17 33.04 25.62 21.32 7.14 1965 10.61 10.30 9.10 7.02 5.88 2.18 1966 8.48 8.24 7.69 5.99 5.01 1.87 1967 3.61 3.53 3.19 2.90 2.50 0.93 1968 58.24 56.56 51.38 39.88 33.17 10.97 1969 45.82 44.50 40.20 31.79 26.65 9.19 1970 10.14 9.85 9.13 7.20 6.07 2.42 1971 8.65 8.41 7.55 6.30 5.27 1.99 1972 14.09 13.68 12.11 9.96 8.41 2.89 1973 7.61 7.40 6.68 5.21 4.51 1.64 1974 10.18 9.89 9.36 7.51 6.29 2.22 1975 10.03 9.75 8.70 6.89 5.77 2.03 1976 3.32 3.23 2.86 2.62 2.27 0.84 1977 81.68 79.47 70.26 54.61 45.18 14.75 1978 4.43 4.30 3.92 3.58 3.20 1.53 1979 24.74 24.01 21.68 16.94 14.08 4.81 1980 34.97 34.22 31.55 24.60 20.38 6.76 1981 6.42 6.22 5.79 4.88 4.19 1.60 1982 10.26 10.03 9.09 7.44 6.26 2.16 1983 85.44 83.87 75.55 59.28 49.50 16.38 1984 5.71 5.55 5.03 4.25 3.81 1.82 1985 21.94 21.29 18.85 14.36 11.85 4.07 1986 28.21 27.39 24.24 18.63 15.43 5.19 1987 34.23 33.24 29.44 22.41 18.49 6.26 1988 3.71 3.61 3.44 2.88 2.43 1.01 1989 13.73 13.47 12.01 9.29 7.75 2.60 1990 8.72 8.47 7.90 6.54 5.52 1.92

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 85.44 83.87 75.55 59.28 49.50 16.38 0.06 81.68 79.47 70.26 54.61 45.18 14.75 0.10 58.24 56.56 51.38 39.88 33.17 10.97 0.13 45.82 44.50 40.20 31.79 26.65 9.19 0.16 38.30 37.17 33.04 25.62 21.32 7.14 0.19 34.97 34.22 31.55 24.60 20.38 6.76 0.23 34.23 33.24 29.44 22.41 18.49 6.26 0.26 28.21 27.39 24.24 18.63 15.43 5.19 0.29 24.74 24.01 21.68 16.94 14.08 4.81 0.32 21.94 21.29 18.85 14.36 11.85 4.07 0.35 14.09 13.68 12.11 9.96 8.41 2.89 0.39 13.73 13.47 12.01 9.29 7.75 2.64 0.42 12.74 12.38 11.00 9.01 7.61 2.60 0.45 12.25 11.89 10.52 8.52 7.16 2.48 0.48 10.61 10.30 9.36 7.51 6.29 2.42 0.52 10.26 10.03 9.13 7.44 6.26 2.22 0.55 10.18 9.89 9.10 7.20 6.07 2.18 0.58 10.14 9.85 9.09 7.02 5.88 2.16 0.61 10.03 9.75 8.70 6.89 5.77 2.03 0.65 8.72 8.47 7.90 6.54 5.52 1.99 0.68 8.65 8.41 7.69 6.30 5.27 1.92 0.71 8.48 8.24 7.55 5.99 5.01 1.87 0.74 7.61 7.40 6.68 5.24 4.56 1.82 0.77 7.01 6.80 5.94 5.21 4.51 1.67 0.81 6.42 6.22 5.79 4.88 4.19 1.64 0.84 5.71 5.55 5.03 4.25 3.81 1.60 0.87 4.43 4.30 3.92 3.58 3.20 1.53 0.90 3.71 3.61 3.44 2.90 2.50 1.01 0.94 3.61 3.53 3.19 2.88 2.43 0.93 0.97 3.32 3.23 2.86 2.62 2.27 0.84

0.10 57.00 55.35 50.26 39.07 32.52 10.79 Average of yearly averages: 4.13

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: MOmelon pre dw Metfile: w13893.dvf PRZM scenario: MOmelonStd.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.36 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 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 3 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)

# 26 stored as MOmelon gsb dw.out Chemical: S-Metolachlor PRZM environment: MOmelonStd.txt modified Monday, 25 August 2008 at 15:50:48 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w13893.dvf modified Tueday, 26 August 2008 at 06:14:40 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 10.18 9.89 8.78 6.80 5.66 1.90 1962 4.86 4.71 4.12 3.29 2.90 1.08 1963 9.27 9.00 7.96 7.05 5.98 2.06 1964 35.53 34.48 30.62 23.76 19.75 6.61 1965 7.47 7.25 6.41 4.96 4.18 1.60 1966 6.28 6.12 5.70 4.46 3.70 1.27 1967 1.35 1.31 1.21 0.94 0.78 0.32 1968 55.57 53.97 49.09 38.12 31.71 10.47 1969 43.32 42.07 38.05 29.99 25.16 8.68 1970 7.90 7.67 7.03 5.57 4.65 1.83 1971 6.31 6.13 5.53 4.75 3.99 1.39 1972 10.98 10.66 9.44 7.90 6.70 2.31 1973 5.10 4.96 4.51 3.48 2.89 1.04 1974 7.82 7.60 7.00 5.70 4.78 1.63 1975 7.16 6.95 6.23 4.99 4.16 1.44 1976 0.81 0.78 0.74 0.64 0.55 0.24 1977 79.25 77.12 68.19 53.04 43.88 14.31 1978 2.53 2.46 2.19 1.75 1.52 0.95 1979 22.10 21.45 19.41 15.20 12.64 4.25 1980 32.52 31.76 29.26 22.84 18.93 6.23 1981 4.11 3.99 3.52 2.99 2.54 1.03 1982 7.78 7.56 6.86 5.50 4.64 1.57 1983 83.15 81.65 73.58 57.72 48.20 15.93 1984 3.63 3.53 3.17 2.52 2.11 1.23 1985 19.75 19.16 16.96 12.92 10.65 3.51 1986 25.35 24.61 21.78 16.74 13.87 4.65 1987 31.77 30.85 27.32 20.79 17.15 5.72 1988 1.11 1.08 0.97 0.77 0.68 0.42 1989 10.67 10.45 9.34 7.23 6.03 2.01 1990 5.70 5.54 5.29 4.50 3.81 1.33

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 83.15 81.65 73.58 57.72 48.20 15.93 0.06 79.25 77.12 68.19 53.04 43.88 14.31 0.10 55.57 53.97 49.09 38.12 31.71 10.47 0.13 43.32 42.07 38.05 29.99 25.16 8.68 0.16 35.53 34.48 30.62 23.76 19.75 6.61 0.19 32.52 31.76 29.26 22.84 18.93 6.23 0.23 31.77 30.85 27.32 20.79 17.15 5.72 0.26 25.35 24.61 21.78 16.74 13.87 4.65 0.29 22.10 21.45 19.41 15.20 12.64 4.25 0.32 19.75 19.16 16.96 12.92 10.65 3.51 0.35 10.98 10.66 9.44 7.90 6.70 2.31 0.39 10.67 10.45 9.34 7.23 6.03 2.06 0.42 10.18 9.89 8.78 7.05 5.98 2.01 0.45 9.27 9.00 7.96 6.80 5.66 1.90 0.48 7.90 7.67 7.03 5.70 4.78 1.83 0.52 7.82 7.60 7.00 5.57 4.65 1.63 0.55 7.78 7.56 6.86 5.50 4.64 1.60 0.58 7.47 7.25 6.41 4.99 4.18 1.57 0.61 7.16 6.95 6.23 4.96 4.16 1.44 0.65 6.31 6.13 5.70 4.75 3.99 1.39 0.68 6.28 6.12 5.53 4.50 3.81 1.33 0.71 5.70 5.54 5.29 4.46 3.70 1.27 0.74 5.10 4.96 4.51 3.48 2.90 1.23 0.77 4.86 4.71 4.12 3.29 2.89 1.08 0.81 4.11 3.99 3.52 2.99 2.54 1.04 0.84 3.63 3.53 3.17 2.52 2.11 1.03 0.87 2.53 2.46 2.19 1.75 1.52 0.95 0.90 1.35 1.31 1.21 0.94 0.78 0.42 0.94 1.11 1.08 0.97 0.77 0.68 0.32 0.97 0.81 0.78 0.74 0.64 0.55 0.24

0.10 54.35 52.78 47.99 37.31 31.06 10.29 Average of yearly averages: 3.57

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: MOmelon gsb dw Metfile: w13893.dvf PRZM scenario: MOmelonStd.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.36 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 3 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)

# 27 stored as NJmelon pre dw.out Chemical: S-Metolachlor PRZM environment: NJmelonStd.txt modified Monday, 25 August 2008 at 15:53:14 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w13781.dvf modified Tueday, 26 August 2008 at 06:14:33 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 3.18 3.12 2.89 2.44 2.14 0.85 1962 3.40 3.34 3.09 2.93 2.78 1.29 1963 4.93 4.84 4.48 3.97 3.66 1.69 1964 20.14 19.76 18.18 15.16 13.35 5.55 1965 4.69 4.62 4.30 3.65 3.33 2.14 1966 6.37 6.25 5.86 5.34 4.77 2.13 1967 8.53 8.38 7.79 6.96 6.19 2.76 1968 6.53 6.41 5.95 5.43 4.92 2.31 1969 8.04 7.89 7.26 6.10 5.35 2.54 1970 5.80 5.71 5.29 4.61 4.62 2.36 1971 6.47 6.35 5.88 4.90 4.45 2.14 1972 4.55 4.47 4.25 3.76 3.49 1.69 1973 34.68 34.07 31.69 26.75 23.37 9.27 1974 5.44 5.36 5.07 4.55 4.07 2.65 1975 43.28 42.54 39.50 33.32 29.26 11.73 1976 17.00 16.69 15.52 13.20 11.63 6.03 1977 5.27 5.19 4.87 4.23 3.79 2.15 1978 11.17 10.96 10.15 8.57 7.58 3.32 1979 25.33 24.89 23.15 19.81 17.49 7.38 1980 29.14 28.59 26.37 22.37 19.68 8.55 1981 7.66 7.52 7.10 6.13 5.61 3.24 1982 21.99 21.61 19.93 17.45 15.54 6.57 1983 20.46 20.08 18.68 16.58 15.13 6.92 1984 4.89 4.81 4.59 4.32 3.96 2.39 1985 11.33 11.11 10.40 9.33 8.26 3.57 1986 7.36 7.25 6.67 6.04 5.43 2.85 1987 5.60 5.49 5.08 4.35 3.89 1.91 1988 8.05 7.91 7.50 6.73 5.96 2.58 1989 19.38 19.01 18.10 15.24 13.33 5.58 1990 5.57 5.51 5.22 4.72 4.32 2.42

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 43.28 42.54 39.50 33.32 29.26 11.73 0.06 34.68 34.07 31.69 26.75 23.37 9.27 0.10 29.14 28.59 26.37 22.37 19.68 8.55 0.13 25.33 24.89 23.15 19.81 17.49 7.38 0.16 21.99 21.61 19.93 17.45 15.54 6.92 0.19 20.46 20.08 18.68 16.58 15.13 6.57 0.23 20.14 19.76 18.18 15.24 13.35 6.03 0.26 19.38 19.01 18.10 15.16 13.33 5.58 0.29 17.00 16.69 15.52 13.20 11.63 5.55 0.32 11.33 11.11 10.40 9.33 8.26 3.57 0.35 11.17 10.96 10.15 8.57 7.58 3.32 0.39 8.53 8.38 7.79 6.96 6.19 3.24 0.42 8.05 7.91 7.50 6.73 5.96 2.85 0.45 8.04 7.89 7.26 6.13 5.61 2.76 0.48 7.66 7.52 7.10 6.10 5.43 2.65 0.52 7.36 7.25 6.67 6.04 5.35 2.58 0.55 6.53 6.41 5.95 5.43 4.92 2.54 0.58 6.47 6.35 5.88 5.34 4.77 2.42 0.61 6.37 6.25 5.86 4.90 4.62 2.39 0.65 5.80 5.71 5.29 4.72 4.45 2.36 0.68 5.60 5.51 5.22 4.61 4.32 2.31 0.71 5.57 5.49 5.08 4.55 4.07 2.15 0.74 5.44 5.36 5.07 4.35 3.96 2.14 0.77 5.27 5.19 4.87 4.32 3.89 2.14 0.81 4.93 4.84 4.59 4.23 3.79 2.13 0.84 4.89 4.81 4.48 3.97 3.66 1.91 0.87 4.69 4.62 4.30 3.76 3.49 1.69 0.90 4.55 4.47 4.25 3.65 3.33 1.69 0.94 3.40 3.34 3.09 2.93 2.78 1.29 0.97 3.18 3.12 2.89 2.44 2.14 0.85

0.10 28.76 28.22 26.05 22.11 19.46 8.43 Average of yearly averages: 3.88

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: NJmelon pre dw Metfile: w13781.dvf PRZM scenario: NJmelonStd.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.36 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 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 3 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)

# 28 stored as NJmelon gsb dw.out Chemical: S-Metolachlor PRZM environment: NJmelonStd.txt modified Monday, 25 August 2008 at 15:53:14 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w13781.dvf modified Tueday, 26 August 2008 at 06:14:33 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 0.01 0.01 0.01 0.01 0.01 0.00 1962 1.07 1.05 0.96 0.79 0.70 0.29 1963 1.82 1.78 1.64 1.49 1.42 0.66 1964 17.05 16.73 15.39 12.83 11.28 4.58 1965 2.31 2.28 2.19 1.99 1.85 1.12 1966 3.21 3.15 2.95 2.77 2.48 1.12 1967 5.53 5.44 5.05 4.42 3.95 1.73 1968 3.32 3.28 3.04 2.82 2.63 1.30 1969 5.43 5.32 4.89 4.13 3.62 1.55 1970 3.58 3.50 3.27 2.72 2.38 1.37 1971 3.72 3.65 3.37 2.80 2.45 1.15 1972 1.73 1.70 1.57 1.43 1.32 0.68 1973 31.67 31.12 28.94 24.43 21.35 8.37 1974 3.81 3.77 3.61 3.28 3.05 1.67 1975 40.29 39.60 36.78 31.04 27.25 10.83 1976 13.94 13.69 12.73 10.86 9.58 5.07 1977 2.10 2.08 1.99 1.81 1.69 1.14 1978 8.40 8.24 7.63 6.35 5.63 2.31 1979 22.18 21.80 20.29 17.41 15.38 6.41 1980 26.16 25.67 23.65 20.05 17.64 7.62 1981 4.91 4.82 4.50 3.87 3.41 2.26 1982 18.85 18.52 17.07 15.06 13.44 5.61 1983 17.84 17.51 16.30 14.10 12.95 5.97 1984 2.70 2.68 2.57 2.33 2.17 1.39 1985 8.69 8.51 7.83 7.03 6.24 2.59 1986 5.30 5.20 4.79 4.12 3.75 1.86 1987 2.50 2.45 2.27 1.91 1.68 0.92 1988 4.86 4.77 4.55 4.23 3.77 1.59 1989 16.49 16.17 15.37 12.95 11.33 4.62 1990 2.72 2.68 2.57 2.35 2.10 1.42

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 40.29 39.60 36.78 31.04 27.25 10.83 0.06 31.67 31.12 28.94 24.43 21.35 8.37 0.10 26.16 25.67 23.65 20.05 17.64 7.62 0.13 22.18 21.80 20.29 17.41 15.38 6.41 0.16 18.85 18.52 17.07 15.06 13.44 5.97 0.19 17.84 17.51 16.30 14.10 12.95 5.61 0.23 17.05 16.73 15.39 12.95 11.33 5.07 0.26 16.49 16.17 15.37 12.83 11.28 4.62 0.29 13.94 13.69 12.73 10.86 9.58 4.58 0.32 8.69 8.51 7.83 7.03 6.24 2.59 0.35 8.40 8.24 7.63 6.35 5.63 2.31 0.39 5.53 5.44 5.05 4.42 3.95 2.26 0.42 5.43 5.32 4.89 4.23 3.77 1.86 0.45 5.30 5.20 4.79 4.13 3.75 1.73 0.48 4.91 4.82 4.55 4.12 3.62 1.67 0.52 4.86 4.77 4.50 3.87 3.41 1.59 0.55 3.81 3.77 3.61 3.28 3.05 1.55 0.58 3.72 3.65 3.37 2.82 2.63 1.42 0.61 3.58 3.50 3.27 2.80 2.48 1.39 0.65 3.32 3.28 3.04 2.77 2.45 1.37 0.68 3.21 3.15 2.95 2.72 2.38 1.30 0.71 2.72 2.68 2.57 2.35 2.17 1.15 0.74 2.70 2.68 2.57 2.33 2.10 1.14 0.77 2.50 2.45 2.27 1.99 1.85 1.12 0.81 2.31 2.28 2.19 1.91 1.69 1.12 0.84 2.10 2.08 1.99 1.81 1.68 0.92 0.87 1.82 1.78 1.64 1.49 1.42 0.68 0.90 1.73 1.70 1.57 1.43 1.32 0.66 0.94 1.07 1.05 0.96 0.79 0.70 0.29 0.97 0.01 0.01 0.01 0.01 0.01 0.00

0.10 25.76 25.28 23.31 19.79 17.41 7.50 Average of yearly averages: 2.91

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: NJmelon gsb dw Metfile: w13781.dvf PRZM scenario: NJmelonStd.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.36 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 3 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)

# 29 stored as ORberries post dw.out Chemical: S-Metolachlor PRZM environment: ORberriesOP.txt modified Thuday, 14 June 2007 at 11:22:40 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w24232.dvf modified Tueday, 26 August 2008 at 06:15:54 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 3.38 3.34 3.18 3.03 2.79 1.29 1962 6.05 5.97 5.63 4.97 4.55 2.38 1963 7.13 7.03 6.65 5.86 5.35 2.98 1964 4.47 4.41 4.18 3.71 3.40 1.96 1965 5.54 5.49 5.19 4.59 4.28 2.24 1966 4.15 4.10 3.87 3.42 3.12 1.71 1967 3.91 3.86 3.65 3.23 2.94 1.52 1968 3.84 3.79 3.59 3.21 2.96 1.55 1969 3.90 3.85 3.64 3.20 2.97 1.69 1970 3.99 3.94 3.73 3.30 3.01 1.60 1971 19.30 19.04 17.99 15.87 14.48 6.84 1972 9.43 9.32 8.86 8.22 7.70 4.53 1973 4.88 4.82 4.57 4.06 3.72 2.25 1974 4.05 4.00 3.78 3.35 3.06 1.65 1975 3.91 3.86 3.65 3.29 3.01 1.59 1976 3.90 3.85 3.64 3.22 2.94 1.55 1977 3.89 3.83 3.62 3.22 2.95 1.55 1978 4.28 4.22 4.00 3.72 3.56 1.89 1979 4.05 3.99 3.77 3.42 3.13 1.69 1980 7.14 7.04 6.68 5.91 5.41 2.70 1981 7.65 7.55 7.13 6.30 5.81 3.06 1982 6.42 6.34 6.03 5.33 4.90 2.64 1983 4.38 4.32 4.12 3.68 3.37 1.86 1984 9.00 8.88 8.39 7.76 7.14 3.51 1985 5.44 5.38 5.08 4.42 4.24 2.75 1986 4.40 4.34 4.11 3.78 3.47 1.98 1987 4.78 4.71 4.45 4.00 3.67 2.03 1988 4.10 4.04 3.96 3.61 3.31 1.78 1989 3.94 3.88 3.66 3.22 2.93 1.55 1990 4.22 4.16 3.93 3.67 3.42 1.77

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 19.30 19.04 17.99 15.87 14.48 6.84 0.06 9.43 9.32 8.86 8.22 7.70 4.53 0.10 9.00 8.88 8.39 7.76 7.14 3.51 0.13 7.65 7.55 7.13 6.30 5.81 3.06 0.16 7.14 7.04 6.68 5.91 5.41 2.98 0.19 7.13 7.03 6.65 5.86 5.35 2.75 0.23 6.42 6.34 6.03 5.33 4.90 2.70 0.26 6.05 5.97 5.63 4.97 4.55 2.64 0.29 5.54 5.49 5.19 4.59 4.28 2.38 0.32 5.44 5.38 5.08 4.42 4.24 2.25 0.35 4.88 4.82 4.57 4.06 3.72 2.24 0.39 4.78 4.71 4.45 4.00 3.67 2.03 0.42 4.47 4.41 4.18 3.78 3.56 1.98 0.45 4.40 4.34 4.12 3.72 3.47 1.96 0.48 4.38 4.32 4.11 3.71 3.42 1.89 0.52 4.28 4.22 4.00 3.68 3.40 1.86 0.55 4.22 4.16 3.96 3.67 3.37 1.78 0.58 4.15 4.10 3.93 3.61 3.31 1.77 0.61 4.10 4.04 3.87 3.42 3.13 1.71 0.65 4.05 4.00 3.78 3.42 3.12 1.69 0.68 4.05 3.99 3.77 3.35 3.06 1.69 0.71 3.99 3.94 3.73 3.30 3.01 1.65 0.74 3.94 3.88 3.66 3.29 3.01 1.60 0.77 3.91 3.86 3.65 3.23 2.97 1.59 0.81 3.91 3.86 3.65 3.22 2.96 1.55 0.84 3.90 3.85 3.64 3.22 2.95 1.55 0.87 3.90 3.85 3.64 3.22 2.94 1.55 0.90 3.89 3.83 3.62 3.21 2.94 1.55 0.94 3.84 3.79 3.59 3.20 2.93 1.52 0.97 3.38 3.34 3.18 3.03 2.79 1.29

0.10 8.87 8.74 8.26 7.61 7.00 3.47 Average of yearly averages: 2.27

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: ORberries post dw Metfile: w24232.dvf PRZM scenario: ORberriesOP.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 08-04 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 30 stored as ORberries gsb dw.out Chemical: S-Metolachlor PRZM environment: ORberriesOP.txt modified Thuday, 14 June 2007 at 11:22:40 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w24232.dvf modified Tueday, 26 August 2008 at 06:15:54 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 7.10 7.00 6.62 5.98 5.50 2.60 1962 30.50 30.12 28.51 25.66 23.66 11.64 1963 39.84 39.32 37.34 33.25 30.42 15.66 1964 7.97 7.91 7.63 7.06 6.65 3.88 1965 1.77 1.75 1.67 1.50 1.39 1.00 1966 0.44 0.44 0.42 0.39 0.37 0.22 1967 0.36 0.36 0.34 0.30 0.28 0.15 1968 0.11 0.11 0.11 0.10 0.09 0.06 1969 0.26 0.26 0.24 0.21 0.19 0.09 1970 0.10 0.10 0.09 0.09 0.08 0.05 1971 7.18 7.08 6.69 5.89 5.37 2.51 1972 2.12 2.09 1.99 1.87 1.77 1.17 1973 0.55 0.54 0.53 0.49 0.46 0.27 1974 19.76 19.49 18.39 16.34 14.93 6.99 1975 3.72 3.69 3.56 3.28 3.09 1.83 1976 1.55 1.53 1.46 1.30 1.20 0.71 1977 0.34 0.34 0.32 0.30 0.28 0.18 1978 0.52 0.52 0.48 0.42 0.38 0.19 1979 0.17 0.17 0.16 0.14 0.13 0.09 1980 3.27 3.22 3.04 2.69 2.46 1.14 1981 4.71 4.65 4.40 3.96 3.68 1.94 1982 1.67 1.65 1.57 1.41 1.31 0.85 1983 18.37 18.13 17.10 15.10 13.76 6.47 1984 4.78 4.72 4.50 4.12 3.82 2.59 1985 7.43 7.34 6.97 6.20 5.85 3.18 1986 1.75 1.73 1.67 1.54 1.45 0.89 1987 0.94 0.92 0.87 0.77 0.70 0.48 1988 4.09 4.03 3.91 3.56 3.28 1.61 1989 0.84 0.83 0.80 0.74 0.70 0.41 1990 0.77 0.76 0.71 0.65 0.59 0.30

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 39.84 39.32 37.34 33.25 30.42 15.66 0.06 30.50 30.12 28.51 25.66 23.66 11.64 0.10 19.76 19.49 18.39 16.34 14.93 6.99 0.13 18.37 18.13 17.10 15.10 13.76 6.47 0.16 7.97 7.91 7.63 7.06 6.65 3.88 0.19 7.43 7.34 6.97 6.20 5.85 3.18 0.23 7.18 7.08 6.69 5.98 5.50 2.60 0.26 7.10 7.00 6.62 5.89 5.37 2.59 0.29 4.78 4.72 4.50 4.12 3.82 2.51 0.32 4.71 4.65 4.40 3.96 3.68 1.94 0.35 4.09 4.03 3.91 3.56 3.28 1.83 0.39 3.72 3.69 3.56 3.28 3.09 1.61 0.42 3.27 3.22 3.04 2.69 2.46 1.17 0.45 2.12 2.09 1.99 1.87 1.77 1.14 0.48 1.77 1.75 1.67 1.54 1.45 1.00 0.52 1.75 1.73 1.67 1.50 1.39 0.89 0.55 1.67 1.65 1.57 1.41 1.31 0.85 0.58 1.55 1.53 1.46 1.30 1.20 0.71 0.61 0.94 0.92 0.87 0.77 0.70 0.48 0.65 0.84 0.83 0.80 0.74 0.70 0.41 0.68 0.77 0.76 0.71 0.65 0.59 0.30 0.71 0.55 0.54 0.53 0.49 0.46 0.27 0.74 0.52 0.52 0.48 0.42 0.38 0.22 0.77 0.44 0.44 0.42 0.39 0.37 0.19 0.81 0.36 0.36 0.34 0.30 0.28 0.18 0.84 0.34 0.34 0.32 0.30 0.28 0.15 0.87 0.26 0.26 0.24 0.21 0.19 0.09 0.90 0.17 0.17 0.16 0.14 0.13 0.09 0.94 0.11 0.11 0.11 0.10 0.09 0.06 0.97 0.10 0.10 0.09 0.09 0.08 0.05

0.10 19.62 19.35 18.26 16.22 14.81 6.94 Average of yearly averages: 2.30

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: ORberries gsb dw Metfile: w24232.dvf PRZM scenario: ORberriesOP.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 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 3 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)

# 31 stored as Caneberry ORberries gsb dw.out Chemical: S-Metolachlor PRZM environment: ORberriesOP.txt modified Thuday, 14 June 2007 at 11:22:40 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w24232.dvf modified Tueday, 26 August 2008 at 06:15:54 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 21.24 20.96 19.82 17.88 16.46 7.78 1962 91.29 90.13 85.33 76.78 70.80 34.82 1963 119.00 118.00 112.00 99.51 91.04 46.86 1964 23.86 23.66 22.84 21.12 19.91 11.61 1965 5.29 5.25 5.01 4.50 4.16 2.98 1966 1.32 1.31 1.27 1.17 1.11 0.65 1967 1.09 1.08 1.02 0.91 0.83 0.44 1968 0.34 0.34 0.32 0.29 0.27 0.18 1969 0.78 0.77 0.71 0.62 0.56 0.28 1970 0.30 0.30 0.28 0.26 0.24 0.15 1971 21.49 21.20 20.02 17.63 16.07 7.52 1972 6.33 6.26 5.97 5.61 5.29 3.50 1973 1.64 1.63 1.57 1.46 1.37 0.80 1974 59.16 58.34 55.05 48.90 44.69 20.93 1975 11.12 11.03 10.64 9.83 9.26 5.48 1976 4.64 4.58 4.35 3.89 3.58 2.14 1977 1.01 1.00 0.97 0.90 0.85 0.54 1978 1.57 1.54 1.45 1.26 1.14 0.57 1979 0.51 0.50 0.47 0.42 0.38 0.28 1980 9.78 9.64 9.10 8.04 7.36 3.43 1981 14.11 13.92 13.17 11.84 11.02 5.81 1982 4.99 4.93 4.71 4.21 3.93 2.54 1983 54.99 54.27 51.19 45.19 41.19 19.37 1984 14.29 14.13 13.46 12.33 11.44 7.75 1985 22.24 21.96 20.86 18.56 17.50 9.50 1986 5.23 5.19 5.00 4.61 4.34 2.66 1987 2.81 2.77 2.62 2.30 2.09 1.43 1988 12.24 12.07 11.70 10.66 9.81 4.81 1989 2.51 2.49 2.40 2.23 2.10 1.22 1990 2.30 2.27 2.14 1.93 1.76 0.90

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 119.00 118.00 112.00 99.51 91.04 46.86 0.06 91.29 90.13 85.33 76.78 70.80 34.82 0.10 59.16 58.34 55.05 48.90 44.69 20.93 0.13 54.99 54.27 51.19 45.19 41.19 19.37 0.16 23.86 23.66 22.84 21.12 19.91 11.61 0.19 22.24 21.96 20.86 18.56 17.50 9.50 0.23 21.49 21.20 20.02 17.88 16.46 7.78 0.26 21.24 20.96 19.82 17.63 16.07 7.75 0.29 14.29 14.13 13.46 12.33 11.44 7.52 0.32 14.11 13.92 13.17 11.84 11.02 5.81 0.35 12.24 12.07 11.70 10.66 9.81 5.48 0.39 11.12 11.03 10.64 9.83 9.26 4.81 0.42 9.78 9.64 9.10 8.04 7.36 3.50 0.45 6.33 6.26 5.97 5.61 5.29 3.43 0.48 5.29 5.25 5.01 4.61 4.34 2.98 0.52 5.23 5.19 5.00 4.50 4.16 2.66 0.55 4.99 4.93 4.71 4.21 3.93 2.54 0.58 4.64 4.58 4.35 3.89 3.58 2.14 0.61 2.81 2.77 2.62 2.30 2.10 1.43 0.65 2.51 2.49 2.40 2.23 2.09 1.22 0.68 2.30 2.27 2.14 1.93 1.76 0.90 0.71 1.64 1.63 1.57 1.46 1.37 0.80 0.74 1.57 1.54 1.45 1.26 1.14 0.65 0.77 1.32 1.31 1.27 1.17 1.11 0.57 0.81 1.09 1.08 1.02 0.91 0.85 0.54 0.84 1.01 1.00 0.97 0.90 0.83 0.44 0.87 0.78 0.77 0.71 0.62 0.56 0.28 0.90 0.51 0.50 0.47 0.42 0.38 0.28 0.94 0.34 0.34 0.32 0.29 0.27 0.18 0.97 0.30 0.30 0.28 0.26 0.24 0.15

0.10 58.74 57.93 54.66 48.53 44.34 20.77 Average of yearly averages: 6.90

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Caneberry ORberries gsb dw Metfile: w24232.dvf PRZM scenario: ORberriesOP.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 4.28 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 3 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)

# 32 stored as KSsorghum pre dw.out Chemical: S-Metolachlor PRZM environment: KSsorghumSTD.txt modified Tueday, 29 May 2007 at 13:55:46 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 24.40 23.90 21.97 19.12 17.08 6.66 1962 46.23 45.11 41.62 34.46 29.76 12.08 1963 21.86 21.40 20.09 17.15 15.21 7.36 1964 23.36 22.81 21.19 17.67 15.66 6.89 1965 22.01 21.70 20.40 17.73 15.52 6.90 1966 27.30 26.87 24.58 20.04 17.31 7.57 1967 33.11 32.41 30.02 26.06 22.81 9.91 1968 15.06 14.71 13.69 11.87 10.82 5.82 1969 24.54 23.98 23.12 19.18 16.56 7.41 1970 43.14 42.49 40.55 36.67 32.17 13.17 1971 17.81 17.45 16.19 14.47 12.77 6.55 1972 9.31 9.10 8.59 7.94 7.54 3.98 1973 33.10 32.45 29.32 25.01 22.20 9.13 1974 29.04 28.41 25.94 24.02 21.58 9.70 1975 20.87 20.61 19.14 16.87 14.87 6.94 1976 25.68 25.16 22.97 19.11 17.06 7.38 1977 58.97 57.64 54.95 47.54 41.32 16.32 1978 55.29 54.01 49.80 43.15 37.52 16.18 1979 13.47 13.17 12.13 11.10 9.94 6.32 1980 34.99 34.16 30.76 25.28 21.80 8.88 1981 62.42 61.10 56.06 47.06 40.72 16.46 1982 17.54 17.20 16.08 14.16 12.63 6.91 1983 31.97 31.42 29.84 25.66 22.33 8.94 1984 37.52 36.72 33.60 29.87 26.16 10.98 1985 29.06 28.40 26.14 23.34 20.96 9.64 1986 38.33 37.49 34.19 29.06 25.69 11.00 1987 24.19 23.60 22.28 20.16 17.68 8.19 1988 21.94 21.47 19.65 17.87 16.79 7.80 1989 18.62 18.23 16.69 15.41 14.14 6.73 1990 64.07 62.75 57.55 48.71 42.51 16.81

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 64.07 62.75 57.55 48.71 42.51 16.81 0.06 62.42 61.10 56.06 47.54 41.32 16.46 0.10 58.97 57.64 54.95 47.06 40.72 16.32 0.13 55.29 54.01 49.80 43.15 37.52 16.18 0.16 46.23 45.11 41.62 36.67 32.17 13.17 0.19 43.14 42.49 40.55 34.46 29.76 12.08 0.23 38.33 37.49 34.19 29.87 26.16 11.00 0.26 37.52 36.72 33.60 29.06 25.69 10.98 0.29 34.99 34.16 30.76 26.06 22.81 9.91 0.32 33.11 32.45 30.02 25.66 22.33 9.70 0.35 33.10 32.41 29.84 25.28 22.20 9.64 0.39 31.97 31.42 29.32 25.01 21.80 9.13 0.42 29.06 28.41 26.14 24.02 21.58 8.94 0.45 29.04 28.40 25.94 23.34 20.96 8.88 0.48 27.30 26.87 24.58 20.16 17.68 8.19 0.52 25.68 25.16 23.12 20.04 17.31 7.80 0.55 24.54 23.98 22.97 19.18 17.08 7.57 0.58 24.40 23.90 22.28 19.12 17.06 7.41 0.61 24.19 23.60 21.97 19.11 16.79 7.38 0.65 23.36 22.81 21.19 17.87 16.56 7.36 0.68 22.01 21.70 20.40 17.73 15.66 6.94 0.71 21.94 21.47 20.09 17.67 15.52 6.91 0.74 21.86 21.40 19.65 17.15 15.21 6.90 0.77 20.87 20.61 19.14 16.87 14.87 6.89 0.81 18.62 18.23 16.69 15.41 14.14 6.73 0.84 17.81 17.45 16.19 14.47 12.77 6.66 0.87 17.54 17.20 16.08 14.16 12.63 6.55 0.90 15.06 14.71 13.69 11.87 10.82 6.32 0.94 13.47 13.17 12.13 11.10 9.94 5.82 0.97 9.31 9.10 8.59 7.94 7.54 3.98

0.10 58.60 57.28 54.44 46.67 40.40 16.31 Average of yearly averages: 9.29

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: KSsorghum pre dw Metfile: w13996.dvf PRZM scenario: KSsorghumSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.88 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 13-05 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 33 stored as Leafys CA Cole Crop pre dw.out Chemical: S-Metolachlor PRZM environment: CARowCropRLF_V2.txt modified Wedday, 26 March 2008 at 10:38:52 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w23234.dvf modified Tueday, 26 August 2008 at 06:15:38 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 3.34 3.30 1.09 0.38 0.25 0.06 1962 6.54 6.49 6.32 5.77 5.53 3.56 1963 15.59 15.42 14.77 13.41 12.54 7.59 1964 20.88 20.73 19.87 18.07 16.89 10.25 1965 37.31 36.16 12.69 11.73 11.03 7.17 1966 36.73 36.45 35.13 32.43 30.44 18.29 1967 42.95 42.51 41.32 37.70 35.25 21.14 1968 33.06 32.71 17.39 16.05 15.45 10.46 1969 33.44 33.22 32.01 30.54 28.90 17.58 1970 18.87 18.74 18.31 16.78 15.72 9.82 1971 12.77 12.65 12.23 11.27 10.62 6.65 1972 9.52 9.43 9.07 8.36 7.86 4.82 1973 34.71 34.33 15.39 14.14 13.31 8.53 1974 37.23 36.83 35.27 32.33 30.26 18.31 1975 22.53 22.32 21.47 20.97 20.07 12.64 1976 48.17 26.80 8.46 7.88 7.89 5.53 1977 54.25 53.67 51.34 46.74 43.64 25.95 1978 20.13 19.94 19.68 18.30 17.23 10.64 1979 21.21 21.08 20.25 18.60 17.54 10.65 1980 12.65 12.53 12.03 11.06 10.38 6.49 1981 40.37 31.59 12.64 11.55 10.86 7.00 1982 61.20 60.56 57.99 52.76 49.27 29.53 1983 21.85 21.67 21.08 19.49 18.42 11.94 1984 18.03 17.85 17.11 15.64 14.64 8.76 1985 8.15 8.08 7.78 7.18 6.89 4.59 1986 8.56 8.47 8.11 7.51 7.05 4.32 1987 12.74 12.60 12.06 11.11 10.46 6.27 1988 6.90 6.84 6.61 6.27 5.93 3.64 1989 4.72 4.67 4.49 4.14 3.90 2.41 1990 6.07 6.00 5.76 5.37 5.08 3.18

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 61.20 60.56 57.99 52.76 49.27 29.53 0.06 54.25 53.67 51.34 46.74 43.64 25.95 0.10 48.17 42.51 41.32 37.70 35.25 21.14 0.13 42.95 36.83 35.27 32.43 30.44 18.31 0.16 40.37 36.45 35.13 32.33 30.26 18.29 0.19 37.31 36.16 32.01 30.54 28.90 17.58 0.23 37.23 34.33 21.47 20.97 20.07 12.64 0.26 36.73 33.22 21.08 19.49 18.42 11.94 0.29 34.71 32.71 20.25 18.60 17.54 10.65 0.32 33.44 31.59 19.87 18.30 17.23 10.64 0.35 33.06 26.80 19.68 18.07 16.89 10.46 0.39 22.53 22.32 18.31 16.78 15.72 10.25 0.42 21.85 21.67 17.39 16.05 15.45 9.82 0.45 21.21 21.08 17.11 15.64 14.64 8.76 0.48 20.88 20.73 15.39 14.14 13.31 8.53 0.52 20.13 19.94 14.77 13.41 12.54 7.59 0.55 18.87 18.74 12.69 11.73 11.03 7.17 0.58 18.03 17.85 12.64 11.55 10.86 7.00 0.61 15.59 15.42 12.23 11.27 10.62 6.65 0.65 12.77 12.65 12.06 11.11 10.46 6.49 0.68 12.74 12.60 12.03 11.06 10.38 6.27 0.71 12.65 12.53 9.07 8.36 7.89 5.53 0.74 9.52 9.43 8.46 7.88 7.86 4.82 0.77 8.56 8.47 8.11 7.51 7.05 4.59 0.81 8.15 8.08 7.78 7.18 6.89 4.32 0.84 6.90 6.84 6.61 6.27 5.93 3.64 0.87 6.54 6.49 6.32 5.77 5.53 3.56 0.90 6.07 6.00 5.76 5.37 5.08 3.18 0.94 4.72 4.67 4.49 4.14 3.90 2.41 0.97 3.34 3.30 1.09 0.38 0.25 0.06

0.10 47.65 41.94 40.72 37.17 34.77 20.86 Average of yearly averages: 9.92

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Leafys CA Cole Crop pre dw Metfile: w23234.dvf PRZM scenario: CARowCropRLF_V2.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 25-12 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 34 stored as FL carrot mineral pre dw.out Chemical: S-Metolachlor PRZM environment: FLcarrotSTD.txt modified Tueday, 29 May 2007 at 13:45:36 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w12844.dvf modified Tueday, 26 August 2008 at 06:14:21 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 18.86 17.94 15.81 11.48 9.00 2.22 1962 10.10 9.61 7.89 5.40 4.33 1.61 1963 57.52 54.74 48.59 34.27 26.36 6.83 1964 214.00 205.00 178.00 122.00 92.25 24.14 1965 298.00 283.00 237.00 163.00 122.00 35.02 1966 50.06 48.02 40.59 28.97 23.25 11.72 1967 15.87 15.10 12.40 8.61 6.91 2.93 1968 55.02 52.37 44.33 30.66 22.91 6.11 1969 35.30 33.56 30.56 21.52 16.38 5.53 1970 8.93 8.57 7.49 5.27 4.11 2.10 1971 16.86 16.03 14.27 10.91 8.49 2.34 1972 82.97 78.99 64.72 42.03 28.69 7.55 1973 42.19 40.76 34.32 23.62 18.10 7.44 1974 18.26 17.38 14.45 10.31 7.99 2.92 1975 8.66 8.24 7.63 5.62 4.46 1.61 1976 63.35 60.28 52.24 37.98 29.22 7.48 1977 13.35 12.83 10.66 6.91 5.50 3.00 1978 16.16 15.38 14.56 10.80 8.68 2.89 1979 48.94 46.55 38.56 26.82 20.26 5.60 1980 42.67 40.58 34.12 23.45 17.99 5.63 1981 34.34 32.77 27.10 19.87 15.91 4.92 1982 48.77 46.42 41.05 28.29 20.04 6.27 1983 14.21 13.54 11.29 8.37 6.61 3.41 1984 23.28 22.19 19.03 16.35 12.18 3.41 1985 8.99 8.62 7.26 5.12 4.07 2.17 1986 39.48 38.14 31.49 21.30 16.12 4.31 1987 73.18 69.71 57.06 42.38 32.60 9.02 1988 14.85 14.14 11.96 8.17 6.53 3.51 1989 63.22 60.14 50.93 35.63 27.28 7.24 1990 17.68 16.80 14.54 11.03 8.54 3.57

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 298.00 283.00 237.00 163.00 122.00 35.02 0.06 214.00 205.00 178.00 122.00 92.25 24.14 0.10 82.97 78.99 64.72 42.38 32.60 11.72 0.13 73.18 69.71 57.06 42.03 29.22 9.02 0.16 63.35 60.28 52.24 37.98 28.69 7.55 0.19 63.22 60.14 50.93 35.63 27.28 7.48 0.23 57.52 54.74 48.59 34.27 26.36 7.44 0.26 55.02 52.37 44.33 30.66 23.25 7.24 0.29 50.06 48.02 41.05 28.97 22.91 6.83 0.32 48.94 46.55 40.59 28.29 20.26 6.27 0.35 48.77 46.42 38.56 26.82 20.04 6.11 0.39 42.67 40.76 34.32 23.62 18.10 5.63 0.42 42.19 40.58 34.12 23.45 17.99 5.60 0.45 39.48 38.14 31.49 21.52 16.38 5.53 0.48 35.30 33.56 30.56 21.30 16.12 4.92 0.52 34.34 32.77 27.10 19.87 15.91 4.31 0.55 23.28 22.19 19.03 16.35 12.18 3.57 0.58 18.86 17.94 15.81 11.48 9.00 3.51 0.61 18.26 17.38 14.56 11.03 8.68 3.41 0.65 17.68 16.80 14.54 10.91 8.54 3.41 0.68 16.86 16.03 14.45 10.80 8.49 3.00 0.71 16.16 15.38 14.27 10.31 7.99 2.93 0.74 15.87 15.10 12.40 8.61 6.91 2.92 0.77 14.85 14.14 11.96 8.37 6.61 2.89 0.81 14.21 13.54 11.29 8.17 6.53 2.34 0.84 13.35 12.83 10.66 6.91 5.50 2.22 0.87 10.10 9.61 7.89 5.62 4.46 2.17 0.90 8.99 8.62 7.63 5.40 4.33 2.10 0.94 8.93 8.57 7.49 5.27 4.11 1.61 0.97 8.66 8.24 7.26 5.12 4.07 1.61

0.10 81.99 78.06 63.95 42.35 32.26 11.45 Average of yearly averages: 6.42

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: FL carrot mineral pre dw Metfile: w12844.dvf PRZM scenario: FLcarrotSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 09-10 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 35 stored as FL carrot muck bastard dw.out Chemical: S-Metolachlor PRZM environment: FLcarrot muck soil.txt modified Wedday, 14 April 2010 at 13:54:39 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w12844.dvf modified Tueday, 26 August 2008 at 06:14:21 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 16.74 15.93 13.57 10.42 8.32 2.05 1962 6.90 6.57 5.40 4.23 3.38 1.65 1963 33.98 32.34 26.57 20.60 16.41 4.55 1964 99.90 95.11 83.20 65.29 51.37 14.63 1965 130.00 126.00 116.00 91.79 70.12 20.90 1966 33.90 32.56 28.99 21.29 17.61 8.89 1967 15.48 14.73 12.11 8.51 6.86 3.05 1968 28.38 27.02 23.55 17.06 13.11 4.08 1969 44.75 43.20 36.90 27.79 21.51 6.90 1970 12.38 11.88 10.64 8.49 7.34 3.17 1971 48.11 45.84 38.09 26.23 19.73 5.25 1972 48.76 46.43 38.12 25.10 17.77 6.34 1973 15.52 15.00 12.83 9.20 7.23 3.93 1974 11.77 11.22 9.39 8.38 7.23 3.36 1975 8.66 8.26 7.04 5.94 4.95 2.03 1976 29.16 27.82 23.00 20.27 16.29 4.86 1977 17.03 16.33 14.58 10.50 8.06 3.72 1978 44.97 42.85 37.49 26.93 20.08 6.84 1979 28.47 27.09 22.29 16.24 12.99 5.55 1980 18.71 17.80 15.22 11.84 9.67 3.99 1981 33.02 31.51 26.07 17.82 13.74 4.38 1982 58.88 56.89 49.44 36.69 25.80 8.91 1983 28.77 27.46 25.92 19.86 15.50 7.29 1984 60.59 57.88 48.48 31.56 22.38 7.34 1985 24.18 23.16 19.45 13.66 10.97 4.24 1986 30.33 29.71 25.92 21.91 17.81 5.88 1987 50.32 48.93 41.71 33.15 26.67 8.79 1988 14.57 14.04 12.04 8.66 7.12 3.57 1989 25.52 24.29 21.46 15.61 12.21 3.65 1990 11.31 10.76 8.80 6.85 5.36 2.35

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 130.00 126.00 116.00 91.79 70.12 20.90 0.06 99.90 95.11 83.20 65.29 51.37 14.63 0.10 60.59 57.88 49.44 36.69 26.67 8.91 0.13 58.88 56.89 48.48 33.15 25.80 8.89 0.16 50.32 48.93 41.71 31.56 22.38 8.79 0.19 48.76 46.43 38.12 27.79 21.51 7.34 0.23 48.11 45.84 38.09 26.93 20.08 7.29 0.26 44.97 43.20 37.49 26.23 19.73 6.90 0.29 44.75 42.85 36.90 25.10 17.81 6.84 0.32 33.98 32.56 28.99 21.91 17.77 6.34 0.35 33.90 32.34 26.57 21.29 17.61 5.88 0.39 33.02 31.51 26.07 20.60 16.41 5.55 0.42 30.33 29.71 25.92 20.27 16.29 5.25 0.45 29.16 27.82 25.92 19.86 15.50 4.86 0.48 28.77 27.46 23.55 17.82 13.74 4.55 0.52 28.47 27.09 23.00 17.06 13.11 4.38 0.55 28.38 27.02 22.29 16.24 12.99 4.24 0.58 25.52 24.29 21.46 15.61 12.21 4.08 0.61 24.18 23.16 19.45 13.66 10.97 3.99 0.65 18.71 17.80 15.22 11.84 9.67 3.93 0.68 17.03 16.33 14.58 10.50 8.32 3.72 0.71 16.74 15.93 13.57 10.42 8.06 3.65 0.74 15.52 15.00 12.83 9.20 7.34 3.57 0.77 15.48 14.73 12.11 8.66 7.23 3.36 0.81 14.57 14.04 12.04 8.51 7.23 3.17 0.84 12.38 11.88 10.64 8.49 7.12 3.05 0.87 11.77 11.22 9.39 8.38 6.86 2.35 0.90 11.31 10.76 8.80 6.85 5.36 2.05 0.94 8.66 8.26 7.04 5.94 4.95 2.03 0.97 6.90 6.57 5.40 4.23 3.38 1.65

0.10 60.42 57.78 49.34 36.34 26.58 8.91 Average of yearly averages: 5.74

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: FL carrot muck bastard dw Metfile: w12844.dvf PRZM scenario: FLcarrot muck soil.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 2.13 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 09-10 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 36 stored as FL cucumber pre dw.out Chemical: S-Metolachlor PRZM environment: FLcucumberSTD.txt modified Wedday, 13 June 2007 at 12:19:24 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w12844.dvf modified Tueday, 26 August 2008 at 06:14:21 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 26.83 25.51 22.06 16.49 12.82 3.162 1962 9.816 9.33 7.642 5.207 4.22 1.764 1963 57.42 54.61 48.42 34.01 26.11 6.788 1964 214 205 177 121 91.37 23.87 1965 297 283 236 162 121 34.55 1966 48.77 46.75 39.43 28.02 22.44 11.41 1967 15.9 15.12 12.38 8.557 6.845 2.872 1968 54.9 52.22 44.1 30.37 22.67 6.029 1969 35.31 33.54 30.49 21.38 16.25 5.446 1970 8.875 8.545 7.439 5.206 4.05 2.043 1971 16.8 15.96 14.23 10.88 8.451 2.333 1972 85.92 81.73 66.79 43.21 29.48 7.73 1973 42.16 40.73 34.19 23.46 17.96 7.423 1974 18.25 17.35 14.4 10.28 7.965 2.891 1975 8.666 8.241 7.608 5.593 4.44 1.593 1976 63.33 60.22 52.05 37.72 28.97 7.413 1977 13.66 13.13 10.89 6.958 5.341 2.948 1978 16.26 15.46 14.66 10.85 8.705 2.892 1979 48.92 46.49 38.44 26.62 20.07 5.544 1980 42.66 40.54 34 23.25 17.8 5.538 1981 34.63 33.02 27.23 19.88 15.91 4.879 1982 49.55 47.12 41.68 28.61 20.24 6.325 1983 14.25 13.56 11.29 8.344 6.575 3.373 1984 24.06 22.92 19.63 16.89 12.56 3.495 1985 9.261 8.869 7.447 5.232 4.148 2.183 1986 39.52 38.16 31.43 21.19 16.01 4.317 1987 73.16 69.65 56.86 42.23 32.44 8.951 1988 14.9 14.18 11.97 8.152 6.509 3.447 1989 63.2 60.08 50.76 35.36 27.03 7.174 1990 17.72 16.83 14.53 10.98 8.492 3.518

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 297.00 283.00 236.00 162.00 121.00 34.55 0.06 214.00 205.00 177.00 121.00 91.37 23.87 0.10 85.92 81.73 66.79 43.21 32.44 11.41 0.13 73.16 69.65 56.86 42.23 29.48 8.95 0.16 63.33 60.22 52.05 37.72 28.97 7.73 0.19 63.20 60.08 50.76 35.36 27.03 7.42 0.23 57.42 54.61 48.42 34.01 26.11 7.41 0.26 54.90 52.22 44.10 30.37 22.67 7.17 0.29 49.55 47.12 41.68 28.61 22.44 6.79 0.32 48.92 46.75 39.43 28.02 20.24 6.33 0.35 48.77 46.49 38.44 26.62 20.07 6.03 0.39 42.66 40.73 34.19 23.46 17.96 5.54 0.42 42.16 40.54 34.00 23.25 17.80 5.54 0.45 39.52 38.16 31.43 21.38 16.25 5.45 0.48 35.31 33.54 30.49 21.19 16.01 4.88 0.52 34.63 33.02 27.23 19.88 15.91 4.32 0.55 26.83 25.51 22.06 16.89 12.82 3.52 0.58 24.06 22.92 19.63 16.49 12.56 3.50 0.61 18.25 17.35 14.66 10.98 8.71 3.45 0.65 17.72 16.83 14.53 10.88 8.49 3.37 0.68 16.80 15.96 14.40 10.85 8.45 3.16 0.71 16.26 15.46 14.23 10.28 7.97 2.95 0.74 15.90 15.12 12.38 8.56 6.85 2.89 0.77 14.90 14.18 11.97 8.34 6.58 2.89 0.81 14.25 13.56 11.29 8.15 6.51 2.87 0.84 13.66 13.13 10.89 6.96 5.34 2.33 0.87 9.82 9.33 7.64 5.59 4.44 2.18 0.90 9.26 8.87 7.61 5.23 4.22 2.04 0.94 8.88 8.55 7.45 5.21 4.15 1.76 0.97 8.67 8.24 7.44 5.21 4.05 1.59

0.10 84.64 80.52 65.80 43.11 32.14 11.16 Average of yearly averages: 6.40

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: FL cucumber pre dw Metfile: w12844.dvf PRZM scenario: FLcucumberSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 09-10 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 37 stored as Okra CA tomato post dw.out Chemical: S-Metolachlor PRZM environment: CAtomato_WirrigSTD.txt modified Tueday, 29 May 2007 at 13:43:54 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 4.97 4.92 4.79 4.45 4.16 2.06 1962 6.81 6.75 6.47 6.01 5.65 3.08 1963 15.34 15.19 14.95 13.94 13.20 7.13 1964 8.30 8.23 7.98 7.35 6.89 4.19 1965 49.17 48.64 46.56 42.36 39.23 19.89 1966 14.27 14.15 13.69 12.58 11.73 7.87 1967 19.52 19.33 18.61 17.45 16.32 8.80 1968 17.83 17.66 17.22 16.07 14.97 8.22 1969 13.55 13.42 12.87 12.41 11.77 6.78 1970 7.86 7.79 7.49 6.88 6.41 3.93 1971 9.14 9.05 8.71 8.23 7.84 4.62 1972 6.90 6.83 6.56 5.98 5.55 3.28 1973 13.79 13.66 13.11 11.84 10.88 5.76 1974 8.82 8.76 8.48 7.80 7.45 4.31 1975 7.97 7.90 7.61 7.04 6.59 3.72 1976 6.63 6.57 6.32 5.79 5.39 3.17 1977 8.55 8.46 8.30 7.54 7.09 3.84 1978 9.66 9.56 9.32 8.49 7.95 4.42 1979 7.88 7.80 7.62 7.13 6.66 3.64 1980 6.41 6.34 6.09 5.55 5.16 2.84 1981 12.62 12.50 11.97 10.80 9.94 5.13 1982 17.40 17.25 16.74 15.41 14.30 7.58 1983 16.45 16.29 15.85 14.77 13.77 7.50 1984 7.94 7.86 7.60 6.96 6.45 3.70 1985 6.88 6.81 6.57 5.99 5.54 2.97 1986 23.61 23.34 22.26 20.30 18.77 9.23 1987 11.50 11.39 10.93 9.95 9.40 5.52 1988 7.79 7.72 7.43 6.86 6.76 3.96 1989 11.49 11.37 10.83 9.71 8.94 4.87 1990 7.13 7.06 6.78 6.26 5.96 3.51

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 49.17 48.64 46.56 42.36 39.23 19.89 0.06 23.61 23.34 22.26 20.30 18.77 9.23 0.10 19.52 19.33 18.61 17.45 16.32 8.80 0.13 17.83 17.66 17.22 16.07 14.97 8.22 0.16 17.40 17.25 16.74 15.41 14.30 7.87 0.19 16.45 16.29 15.85 14.77 13.77 7.58 0.23 15.34 15.19 14.95 13.94 13.20 7.50 0.26 14.27 14.15 13.69 12.58 11.77 7.13 0.29 13.79 13.66 13.11 12.41 11.73 6.78 0.32 13.55 13.42 12.87 11.84 10.88 5.76 0.35 12.62 12.50 11.97 10.80 9.94 5.52 0.39 11.50 11.39 10.93 9.95 9.40 5.13 0.42 11.49 11.37 10.83 9.71 8.94 4.87 0.45 9.66 9.56 9.32 8.49 7.95 4.62 0.48 9.14 9.05 8.71 8.23 7.84 4.42 0.52 8.82 8.76 8.48 7.80 7.45 4.31 0.55 8.55 8.46 8.30 7.54 7.09 4.19 0.58 8.30 8.23 7.98 7.35 6.89 3.96 0.61 7.97 7.90 7.62 7.13 6.76 3.93 0.65 7.94 7.86 7.61 7.04 6.66 3.84 0.68 7.88 7.80 7.60 6.96 6.59 3.72 0.71 7.86 7.79 7.49 6.88 6.45 3.70 0.74 7.79 7.72 7.43 6.86 6.41 3.64 0.77 7.13 7.06 6.78 6.26 5.96 3.51 0.81 6.90 6.83 6.57 6.01 5.65 3.28 0.84 6.88 6.81 6.56 5.99 5.55 3.17 0.87 6.81 6.75 6.47 5.98 5.54 3.08 0.90 6.63 6.57 6.32 5.79 5.39 2.97 0.94 6.41 6.34 6.09 5.55 5.16 2.84 0.97 4.97 4.92 4.79 4.45 4.16 2.06

0.10 19.35 19.16 18.47 17.31 16.19 8.75 Average of yearly averages: 5.52

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Okra CA tomato post dw Metfile: w93193.dvf PRZM scenario: CAtomato_WirrigSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 2.13 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 08-03 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 38 stored as Okra CA tomato gsb dw.out Chemical: S-Metolachlor PRZM environment: CAtomato_WirrigSTD.txt modified Tueday, 29 May 2007 at 13:43:54 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 0.25 0.25 0.24 0.22 0.20 0.10 1962 1.11 1.10 1.05 0.94 0.87 0.43 1963 8.77 8.68 8.52 7.93 7.41 3.80 1964 2.23 2.22 2.17 2.07 2.00 1.25 1965 41.73 41.27 39.49 35.89 33.22 16.54 1966 9.31 9.27 9.08 8.65 8.30 4.96 1967 12.79 12.66 12.19 11.45 10.69 5.59 1968 11.93 11.81 11.51 10.81 10.07 5.44 1969 7.54 7.47 7.17 6.80 6.48 3.82 1970 1.93 1.92 1.88 1.78 1.70 1.03 1971 1.78 1.77 1.70 1.57 1.47 0.80 1972 0.42 0.42 0.41 0.39 0.38 0.24 1973 7.24 7.17 6.87 6.17 5.66 2.70 1974 2.97 2.95 2.86 2.61 2.41 1.47 1975 1.90 1.88 1.81 1.67 1.55 0.91 1976 0.46 0.46 0.45 0.43 0.41 0.25 1977 2.45 2.42 2.32 2.13 1.97 0.96 1978 3.69 3.65 3.52 3.21 2.96 1.52 1979 2.15 2.13 2.05 1.90 1.78 1.02 1980 0.47 0.47 0.46 0.44 0.42 0.25 1981 5.92 5.85 5.59 5.02 4.60 2.14 1982 11.06 10.95 10.62 9.75 9.05 4.65 1983 10.65 10.54 10.19 9.48 8.85 4.77 1984 2.31 2.29 2.24 2.13 2.05 1.21 1985 0.92 0.91 0.89 0.81 0.75 0.44 1986 17.38 17.18 16.37 14.85 13.73 6.57 1987 5.79 5.74 5.52 4.99 4.60 2.90 1988 1.32 1.31 1.29 1.22 1.17 0.70 1989 4.66 4.61 4.38 3.90 3.57 1.73 1990 0.97 0.97 0.95 0.90 0.87 0.52

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 41.73 41.27 39.49 35.89 33.22 16.54 0.06 17.38 17.18 16.37 14.85 13.73 6.57 0.10 12.79 12.66 12.19 11.45 10.69 5.59 0.13 11.93 11.81 11.51 10.81 10.07 5.44 0.16 11.06 10.95 10.62 9.75 9.05 4.96 0.19 10.65 10.54 10.19 9.48 8.85 4.77 0.23 9.31 9.27 9.08 8.65 8.30 4.65 0.26 8.77 8.68 8.52 7.93 7.41 3.82 0.29 7.54 7.47 7.17 6.80 6.48 3.80 0.32 7.24 7.17 6.87 6.17 5.66 2.90 0.35 5.92 5.85 5.59 5.02 4.60 2.70 0.39 5.79 5.74 5.52 4.99 4.60 2.14 0.42 4.66 4.61 4.38 3.90 3.57 1.73 0.45 3.69 3.65 3.52 3.21 2.96 1.52 0.48 2.97 2.95 2.86 2.61 2.41 1.47 0.52 2.45 2.42 2.32 2.13 2.05 1.25 0.55 2.31 2.29 2.24 2.13 2.00 1.21 0.58 2.23 2.22 2.17 2.07 1.97 1.03 0.61 2.15 2.13 2.05 1.90 1.78 1.02 0.65 1.93 1.92 1.88 1.78 1.70 0.96 0.68 1.90 1.88 1.81 1.67 1.55 0.91 0.71 1.78 1.77 1.70 1.57 1.47 0.80 0.74 1.32 1.31 1.29 1.22 1.17 0.70 0.77 1.11 1.10 1.05 0.94 0.87 0.52 0.81 0.97 0.97 0.95 0.90 0.87 0.44 0.84 0.92 0.91 0.89 0.81 0.75 0.43 0.87 0.47 0.47 0.46 0.44 0.42 0.25 0.90 0.46 0.46 0.45 0.43 0.41 0.25 0.94 0.42 0.42 0.41 0.39 0.38 0.24 0.97 0.25 0.25 0.24 0.22 0.20 0.10

0.10 12.70 12.58 12.12 11.39 10.63 5.57 Average of yearly averages: 2.62

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Okra CA tomato gsb dw Metfile: w93193.dvf PRZM scenario: CAtomato_WirrigSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 2.13 kg/ha Application Efficiency: APPEFF 1 fraction Spray Drift DRFT 0 fraction of application rate applied to pond Application Date Date 08-03 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 39 stored as Okra FL tomato post dw.out Chemical: S-Metolachlor PRZM environment: FLtomatoSTD_V2.txt modified Tueday, 20 May 2008 at 12:00:14 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w12844.dvf modified Tueday, 26 August 2008 at 06:14:21 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 25.62 24.59 21.72 15.28 11.90 3.73 1962 26.14 24.93 20.76 14.36 11.18 3.58 1963 16.05 15.32 12.69 8.65 6.89 2.14 1964 5.34 5.10 4.49 3.58 3.28 1.07 1965 28.72 27.61 22.87 15.47 12.00 3.64 1966 84.93 81.01 67.72 46.78 36.53 10.65 1967 35.52 33.90 27.96 20.20 16.42 5.04 1968 24.47 23.38 19.39 13.85 10.95 3.29 1969 27.87 26.61 22.14 18.91 15.20 4.55 1970 60.55 57.72 50.96 35.43 27.61 8.23 1971 5.12 4.89 4.04 2.81 2.36 0.97 1972 25.75 24.56 20.27 14.38 11.51 3.36 1973 16.45 15.71 13.34 9.67 7.82 2.33 1974 29.76 28.33 23.23 15.98 12.44 3.89 1975 5.04 4.81 3.95 2.68 2.08 0.68 1976 50.71 49.00 41.35 28.76 22.49 6.64 1977 5.82 5.54 4.68 3.21 2.58 1.27 1978 16.82 16.06 13.38 9.61 7.55 2.18 1979 22.95 21.85 17.91 12.00 9.25 3.21 1980 20.41 19.46 17.29 12.12 9.78 2.95 1981 28.39 27.08 22.36 15.75 12.47 3.70 1982 28.30 26.95 23.62 16.81 13.12 4.08 1983 58.66 56.37 49.94 35.18 27.51 7.98 1984 98.13 93.59 77.26 53.55 42.03 12.16 1985 30.69 29.24 24.03 17.47 13.72 4.33 1986 21.89 20.88 17.75 14.13 11.64 3.60 1987 38.78 36.96 31.94 22.24 17.38 5.26 1988 12.01 11.51 10.45 8.92 7.29 2.17 1989 10.09 9.62 8.18 6.45 5.69 1.89 1990 22.45 21.38 17.54 11.91 9.43 2.84

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 98.13 93.59 77.26 53.55 42.03 12.16 0.06 84.93 81.01 67.72 46.78 36.53 10.65 0.10 60.55 57.72 50.96 35.43 27.61 8.23 0.13 58.66 56.37 49.94 35.18 27.51 7.98 0.16 50.71 49.00 41.35 28.76 22.49 6.64 0.19 38.78 36.96 31.94 22.24 17.38 5.26 0.23 35.52 33.90 27.96 20.20 16.42 5.04 0.26 30.69 29.24 24.03 18.91 15.20 4.55 0.29 29.76 28.33 23.62 17.47 13.72 4.33 0.32 28.72 27.61 23.23 16.81 13.12 4.08 0.35 28.39 27.08 22.87 15.98 12.47 3.89 0.39 28.30 26.95 22.36 15.75 12.44 3.73 0.42 27.87 26.61 22.14 15.47 12.00 3.70 0.45 26.14 24.93 21.72 15.28 11.90 3.64 0.48 25.75 24.59 20.76 14.38 11.64 3.60 0.52 25.62 24.56 20.27 14.36 11.51 3.58 0.55 24.47 23.38 19.39 14.13 11.18 3.36 0.58 22.95 21.85 17.91 13.85 10.95 3.29 0.61 22.45 21.38 17.75 12.12 9.78 3.21 0.65 21.89 20.88 17.54 12.00 9.43 2.95 0.68 20.41 19.46 17.29 11.91 9.25 2.84 0.71 16.82 16.06 13.38 9.67 7.82 2.33 0.74 16.45 15.71 13.34 9.61 7.55 2.18 0.77 16.05 15.32 12.69 8.92 7.29 2.17 0.81 12.01 11.51 10.45 8.65 6.89 2.14 0.84 10.09 9.62 8.18 6.45 5.69 1.89 0.87 5.82 5.54 4.68 3.58 3.28 1.27 0.90 5.34 5.10 4.49 3.21 2.58 1.07 0.94 5.12 4.89 4.04 2.81 2.36 0.97 0.97 5.04 4.81 3.95 2.68 2.08 0.68

0.10 60.36 57.59 50.86 35.41 27.60 8.20 Average of yearly averages: 4.05

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Okra FL tomato post dw Metfile: w12844.dvf PRZM scenario: FLtomatoSTD_V2.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 2.13 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 08-02 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 40 stored as Okra FL tomato gsb dw.out Chemical: S-Metolachlor PRZM environment: FLtomatoSTD_V2.txt modified Tueday, 20 May 2008 at 12:00:14 EXAMS environment: ir298.exv modified Tueday, 26 August 2008 at 06:14:07 Metfile: w12844.dvf modified Tueday, 26 August 2008 at 06:14:21 Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 22.55 21.58 19.14 13.48 10.49 2.98 1962 23.05 21.97 18.30 12.64 9.84 2.82 1963 11.65 11.12 9.21 6.24 4.98 1.55 1964 2.30 2.19 1.83 1.38 1.34 0.45 1965 25.05 24.09 19.97 13.50 10.47 3.02 1966 79.34 75.67 63.23 43.70 34.08 9.79 1967 31.35 29.92 24.68 17.91 14.27 4.36 1968 20.74 19.81 16.42 11.63 9.16 2.66 1969 23.67 22.60 18.81 16.53 13.33 3.92 1970 55.76 53.15 47.02 32.67 25.45 7.34 1971 1.99 1.92 1.58 1.11 0.90 0.33 1972 21.18 20.20 16.67 11.86 9.52 2.78 1973 12.62 12.05 10.03 7.40 5.90 1.73 1974 26.81 25.52 20.91 14.39 11.20 3.20 1975 0.37 0.35 0.30 0.23 0.19 0.07 1976 46.80 45.20 38.15 26.52 20.71 5.93 1977 4.52 4.30 3.63 2.47 1.91 0.59 1978 12.14 11.60 9.63 7.00 5.52 1.60 1979 20.00 19.04 15.60 10.43 8.03 2.38 1980 16.59 15.82 13.90 9.79 7.65 2.25 1981 23.84 22.74 18.76 13.27 10.36 3.01 1982 25.02 23.82 20.74 14.81 11.56 3.38 1983 53.93 51.60 45.93 32.41 25.35 7.30 1984 92.75 88.46 73.02 50.65 39.76 11.46 1985 27.46 26.16 21.49 15.67 12.30 3.56 1986 19.16 18.27 15.56 11.89 9.88 2.96 1987 34.58 32.96 28.56 19.90 15.50 4.46 1988 8.52 8.13 7.54 6.22 5.18 1.56 1989 7.13 6.79 5.75 4.72 4.13 1.27 1990 18.97 18.06 14.81 10.06 7.85 2.25

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 92.75 88.46 73.02 50.65 39.76 11.46 0.06 79.34 75.67 63.23 43.70 34.08 9.79 0.10 55.76 53.15 47.02 32.67 25.45 7.34 0.13 53.93 51.60 45.93 32.41 25.35 7.30 0.16 46.80 45.20 38.15 26.52 20.71 5.93 0.19 34.58 32.96 28.56 19.90 15.50 4.46 0.23 31.35 29.92 24.68 17.91 14.27 4.36 0.26 27.46 26.16 21.49 16.53 13.33 3.92 0.29 26.81 25.52 20.91 15.67 12.30 3.56 0.32 25.05 24.09 20.74 14.81 11.56 3.38 0.35 25.02 23.82 19.97 14.39 11.20 3.20 0.39 23.84 22.74 19.14 13.50 10.49 3.02 0.42 23.67 22.60 18.81 13.48 10.47 3.01 0.45 23.05 21.97 18.76 13.27 10.36 2.98 0.48 22.55 21.58 18.30 12.64 9.88 2.96 0.52 21.18 20.20 16.67 11.89 9.84 2.82 0.55 20.74 19.81 16.42 11.86 9.52 2.78 0.58 20.00 19.04 15.60 11.63 9.16 2.66 0.61 19.16 18.27 15.56 10.43 8.03 2.38 0.65 18.97 18.06 14.81 10.06 7.85 2.25 0.68 16.59 15.82 13.90 9.79 7.65 2.25 0.71 12.62 12.05 10.03 7.40 5.90 1.73 0.74 12.14 11.60 9.63 7.00 5.52 1.60 0.77 11.65 11.12 9.21 6.24 5.18 1.56 0.81 8.52 8.13 7.54 6.22 4.98 1.55 0.84 7.13 6.79 5.75 4.72 4.13 1.27 0.87 4.52 4.30 3.63 2.47 1.91 0.59 0.90 2.30 2.19 1.83 1.38 1.34 0.45 0.94 1.99 1.92 1.58 1.11 0.90 0.33 0.97 0.37 0.35 0.30 0.23 0.19 0.07

0.10 55.58 53.00 46.91 32.64 25.44 7.33 Average of yearly averages: 3.36

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Okra FL tomato gsb dw Metfile: w12844.dvf PRZM scenario: FLtomatoSTD_V2.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 2.13 kg/ha Application Efficiency: APPEFF 1 fraction Spray Drift DRFT 0 fraction of application rate applied to pond Application Date Date 08-02 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 41 stored as Okra PA tomato post dw.out Chemical: S-Metolachlor PRZM environment: PAtomatoSTD.txt modified Tueday, 29 May 2007 at 14:01:58 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 4.97 4.93 4.60 3.88 3.54 1.65 1962 7.58 7.48 6.91 6.23 5.76 2.65 1963 5.67 5.57 5.24 4.66 4.22 2.05 1964 14.09 13.82 12.71 11.57 10.60 4.70 1965 7.56 7.42 6.84 6.28 5.86 3.05 1966 11.84 11.63 10.73 9.13 8.02 3.65 1967 12.21 11.99 11.18 9.58 8.59 4.00 1968 26.34 25.87 23.97 22.34 20.32 8.72 1969 8.11 7.96 7.38 6.81 6.18 3.91 1970 6.95 6.84 6.41 5.80 5.32 2.62 1971 10.15 9.98 9.27 7.98 7.13 3.23 1972 14.24 13.97 13.11 11.45 10.41 4.66 1973 16.23 15.95 14.85 13.25 11.83 5.29 1974 21.20 20.79 19.54 16.57 14.57 6.53 1975 29.45 28.87 26.84 23.73 21.06 9.24 1976 13.93 13.80 13.13 11.21 9.88 5.29 1977 16.05 15.76 14.58 12.23 10.83 4.92 1978 17.91 17.57 16.38 13.74 12.07 5.55 1979 11.61 11.40 10.67 9.05 8.00 4.23 1980 17.93 17.59 16.88 14.96 13.48 5.98 1981 6.51 6.40 5.99 5.24 4.75 2.64 1982 16.42 16.13 15.17 12.90 11.34 5.28 1983 38.29 37.63 34.90 30.84 27.42 11.70 1984 11.87 11.66 10.81 9.48 8.94 5.19 1985 33.20 32.58 30.26 27.82 24.92 10.80 1986 12.59 12.36 11.43 9.58 8.80 5.34 1987 11.26 11.13 10.29 9.59 8.79 4.35 1988 10.60 10.41 10.01 8.84 7.89 3.75 1989 43.89 43.06 41.55 35.24 30.97 12.95 1990 19.75 19.40 18.04 16.65 14.87 7.90

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 43.89 43.06 41.55 35.24 30.97 12.95 0.06 38.29 37.63 34.90 30.84 27.42 11.70 0.10 33.20 32.58 30.26 27.82 24.92 10.80 0.13 29.45 28.87 26.84 23.73 21.06 9.24 0.16 26.34 25.87 23.97 22.34 20.32 8.72 0.19 21.20 20.79 19.54 16.65 14.87 7.90 0.23 19.75 19.40 18.04 16.57 14.57 6.53 0.26 17.93 17.59 16.88 14.96 13.48 5.98 0.29 17.91 17.57 16.38 13.74 12.07 5.55 0.32 16.42 16.13 15.17 13.25 11.83 5.34 0.35 16.23 15.95 14.85 12.90 11.34 5.29 0.39 16.05 15.76 14.58 12.23 10.83 5.29 0.42 14.24 13.97 13.13 11.57 10.60 5.28 0.45 14.09 13.82 13.11 11.45 10.41 5.19 0.48 13.93 13.80 12.71 11.21 9.88 4.92 0.52 12.59 12.36 11.43 9.59 8.94 4.70 0.55 12.21 11.99 11.18 9.58 8.80 4.66 0.58 11.87 11.66 10.81 9.58 8.79 4.35 0.61 11.84 11.63 10.73 9.48 8.59 4.23 0.65 11.61 11.40 10.67 9.13 8.02 4.00 0.68 11.26 11.13 10.29 9.05 8.00 3.91 0.71 10.60 10.41 10.01 8.84 7.89 3.75 0.74 10.15 9.98 9.27 7.98 7.13 3.65 0.77 8.11 7.96 7.38 6.81 6.18 3.23 0.81 7.58 7.48 6.91 6.28 5.86 3.05 0.84 7.56 7.42 6.84 6.23 5.76 2.65 0.87 6.95 6.84 6.41 5.80 5.32 2.64 0.90 6.51 6.40 5.99 5.24 4.75 2.62 0.94 5.67 5.57 5.24 4.66 4.22 2.05 0.97 4.97 4.93 4.60 3.88 3.54 1.65

0.10 32.83 32.21 29.92 27.41 24.53 10.64 Average of yearly averages: 5.39

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Okra PA tomato post dw Metfile: w14751.dvf PRZM scenario: PAtomatoSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 2.13 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 23-04 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 42 stored as Okra PA tomato gsb dw.out Chemical: S-Metolachlor PRZM environment: PAtomatoSTD.txt modified Tueday, 29 May 2007 at 14:01:58 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 1.12 1.10 1.01 0.84 0.74 0.29 1962 2.85 2.79 2.60 2.50 2.35 1.07 1963 0.90 0.88 0.83 0.73 0.66 0.44 1964 8.80 8.64 7.93 7.51 7.00 2.99 1965 3.03 2.97 2.74 2.52 2.37 1.42 1966 6.70 6.58 6.07 5.12 4.48 2.05 1967 7.21 7.09 6.61 5.55 4.91 2.31 1968 21.42 21.03 19.49 18.50 16.93 7.18 1969 3.50 3.47 3.32 3.02 2.82 2.28 1970 2.00 1.96 1.88 1.85 1.75 0.99 1971 5.41 5.32 4.94 4.17 3.68 1.57 1972 9.46 9.28 8.59 7.59 6.80 3.01 1973 10.91 10.72 10.00 9.06 8.11 3.62 1974 15.94 15.63 14.75 12.54 11.03 4.72 1975 24.44 23.96 22.30 19.60 17.42 7.57 1976 9.34 9.22 8.86 7.63 6.73 3.59 1977 10.78 10.59 9.80 8.22 7.30 3.32 1978 12.64 12.40 11.55 9.70 8.52 3.71 1979 7.06 6.94 6.50 5.54 4.90 2.44 1980 13.17 12.91 12.48 10.79 9.80 4.27 1981 2.09 2.06 1.98 1.80 1.67 1.01 1982 11.77 11.56 10.81 9.21 8.09 3.40 1983 32.63 32.06 29.74 26.42 23.51 9.92 1984 7.51 7.38 6.85 5.85 5.23 3.43 1985 28.10 27.57 25.61 23.38 20.98 8.89 1986 8.08 7.94 7.34 6.17 5.62 3.58 1987 6.96 6.87 6.35 5.77 5.42 2.68 1988 6.17 6.06 5.67 5.02 4.46 2.11 1989 38.67 37.94 36.64 31.10 27.31 11.17 1990 15.26 14.98 13.77 12.66 11.35 6.09

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 38.67 37.94 36.64 31.10 27.31 11.17 0.06 32.63 32.06 29.74 26.42 23.51 9.92 0.10 28.10 27.57 25.61 23.38 20.98 8.89 0.13 24.44 23.96 22.30 19.60 17.42 7.57 0.16 21.42 21.03 19.49 18.50 16.93 7.18 0.19 15.94 15.63 14.75 12.66 11.35 6.09 0.23 15.26 14.98 13.77 12.54 11.03 4.72 0.26 13.17 12.91 12.48 10.79 9.80 4.27 0.29 12.64 12.40 11.55 9.70 8.52 3.71 0.32 11.77 11.56 10.81 9.21 8.11 3.62 0.35 10.91 10.72 10.00 9.06 8.09 3.59 0.39 10.78 10.59 9.80 8.22 7.30 3.58 0.42 9.46 9.28 8.86 7.63 7.00 3.43 0.45 9.34 9.22 8.59 7.59 6.80 3.40 0.48 8.80 8.64 7.93 7.51 6.73 3.32 0.52 8.08 7.94 7.34 6.17 5.62 3.01 0.55 7.51 7.38 6.85 5.85 5.42 2.99 0.58 7.21 7.09 6.61 5.77 5.23 2.68 0.61 7.06 6.94 6.50 5.55 4.91 2.44 0.65 6.96 6.87 6.35 5.54 4.90 2.31 0.68 6.70 6.58 6.07 5.12 4.48 2.28 0.71 6.17 6.06 5.67 5.02 4.46 2.11 0.74 5.41 5.32 4.94 4.17 3.68 2.05 0.77 3.50 3.47 3.32 3.02 2.82 1.57 0.81 3.03 2.97 2.74 2.52 2.37 1.42 0.84 2.85 2.79 2.60 2.50 2.35 1.07 0.87 2.09 2.06 1.98 1.85 1.75 1.01 0.90 2.00 1.96 1.88 1.80 1.67 0.99 0.94 1.12 1.10 1.01 0.84 0.74 0.44 0.97 0.90 0.88 0.83 0.73 0.66 0.29

0.10 27.73 27.21 25.28 23.00 20.62 8.76 Average of yearly averages: 3.70

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Okra PA tomato gsb dw Metfile: w14751.dvf PRZM scenario: PAtomatoSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 2.13 kg/ha Application Efficiency: APPEFF 1 fraction Spray Drift DRFT 0 fraction of application rate applied to pond Application Date Date 23-04 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 43 stored as Bulb CA onion post dw.out Chemical: S-Metolachlor 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 6.40 6.34 6.12 5.65 5.32 2.99 1962 25.63 25.43 24.95 23.16 21.74 12.14 1963 38.57 38.22 36.82 34.10 32.26 18.61 1964 15.14 15.05 14.67 13.81 13.27 8.55 1965 9.94 9.87 9.60 9.20 8.76 5.51 1966 12.35 12.26 11.89 11.04 10.42 6.14 1967 9.03 8.96 8.70 8.13 7.75 4.70 1968 8.45 8.37 8.14 7.88 7.50 4.44 1969 9.93 9.88 9.57 8.90 8.49 4.92 1970 10.57 10.49 10.13 9.37 8.84 5.03 1971 8.38 8.32 8.08 7.56 7.15 4.26 1972 8.19 8.12 7.86 7.24 6.81 4.00 1973 8.04 7.97 7.70 7.23 6.85 3.96 1974 8.60 8.53 8.23 7.83 7.52 4.38 1975 9.57 9.49 9.18 8.53 8.07 4.70 1976 9.99 9.91 9.58 8.89 8.40 4.88 1977 8.36 8.29 8.01 7.46 7.03 4.11 1978 30.04 29.77 28.67 26.56 25.05 13.49 1979 12.20 12.12 11.88 11.21 10.62 6.48 1980 12.18 12.08 11.70 10.98 10.41 6.22 1981 11.02 10.93 10.58 9.87 9.33 5.46 1982 9.14 9.06 8.76 8.29 7.85 4.59 1983 21.05 20.88 20.29 19.26 18.58 10.87 1984 10.96 10.88 10.58 9.90 9.41 5.84 1985 8.83 8.77 8.50 7.94 7.49 4.53 1986 8.51 8.44 8.17 7.98 7.62 4.61 1987 8.45 8.39 8.13 7.56 7.11 4.27 1988 8.20 8.14 7.88 7.33 6.91 4.11 1989 10.49 10.41 10.08 9.31 8.74 5.12 1990 8.64 8.57 8.32 7.72 7.27 4.35

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 38.57 38.22 36.82 34.10 32.26 18.61 0.06 30.04 29.77 28.67 26.56 25.05 13.49 0.10 25.63 25.43 24.95 23.16 21.74 12.14 0.13 21.05 20.88 20.29 19.26 18.58 10.87 0.16 15.14 15.05 14.67 13.81 13.27 8.55 0.19 12.35 12.26 11.89 11.21 10.62 6.48 0.23 12.20 12.12 11.88 11.04 10.42 6.22 0.26 12.18 12.08 11.70 10.98 10.41 6.14 0.29 11.02 10.93 10.58 9.90 9.41 5.84 0.32 10.96 10.88 10.58 9.87 9.33 5.51 0.35 10.57 10.49 10.13 9.37 8.84 5.46 0.39 10.49 10.41 10.08 9.31 8.76 5.12 0.42 9.99 9.91 9.60 9.20 8.74 5.03 0.45 9.94 9.88 9.58 8.90 8.49 4.92 0.48 9.93 9.87 9.57 8.89 8.40 4.88 0.52 9.57 9.49 9.18 8.53 8.07 4.70 0.55 9.14 9.06 8.76 8.29 7.85 4.70 0.58 9.03 8.96 8.70 8.13 7.75 4.61 0.61 8.83 8.77 8.50 7.98 7.62 4.59 0.65 8.64 8.57 8.32 7.94 7.52 4.53 0.68 8.60 8.53 8.23 7.88 7.50 4.44 0.71 8.51 8.44 8.17 7.83 7.49 4.38 0.74 8.45 8.39 8.14 7.72 7.27 4.35 0.77 8.45 8.37 8.13 7.56 7.15 4.27 0.81 8.38 8.32 8.08 7.56 7.11 4.26 0.84 8.36 8.29 8.01 7.46 7.03 4.11 0.87 8.20 8.14 7.88 7.33 6.91 4.11 0.90 8.19 8.12 7.86 7.24 6.85 4.00 0.94 8.04 7.97 7.70 7.23 6.81 3.96 0.97 6.40 6.34 6.12 5.65 5.32 2.99

0.10 25.17 24.98 24.48 22.77 21.42 12.01 Average of yearly averages: 6.11

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Bulb CA onion post dw Metfile: w23155.dvf PRZM scenario: CAonion_WirrigSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 23-01 dd/mm or dd/mmm or dd-mm or dd-mmm Interval 1 interval 21 days Set to 0 or delete line for single app. app. rate 1 apprate 1.43 kg/ha Record 17: FILTRA IPSCND 3 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)

# 44 stored as Bulb CA onion gsb dw.out Chemical: S-Metolachlor 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 1.5E-05 1.5E-05 1.5E-05 1.4E-05 1.3E-05 5.9E-06 1962 1.7E+01 1.7E+01 1.7E+01 1.6E+01 1.5E+01 7.9E+00 1963 3.1E+01 3.1E+01 2.9E+01 2.7E+01 2.6E+01 1.5E+01 1964 7.5E+00 7.5E+00 7.4E+00 7.1E+00 6.9E+00 4.3E+00 1965 1.9E+00 1.9E+00 1.9E+00 1.8E+00 1.8E+00 1.2E+00 1966 4.1E+00 4.1E+00 3.9E+00 3.7E+00 3.4E+00 2.0E+00 1967 9.1E-01 9.1E-01 8.9E-01 8.6E-01 8.3E-01 5.3E-01 1968 9.1E-01 9.0E-01 8.7E-01 8.0E-01 7.4E-01 4.1E-01 1969 1.8E+00 1.8E+00 1.8E+00 1.6E+00 1.5E+00 8.0E-01 1970 2.5E+00 2.5E+00 2.4E+00 2.3E+00 2.1E+00 1.1E+00 1971 5.3E-01 5.2E-01 5.1E-01 4.8E-01 4.8E-01 3.2E-01 1972 1.4E-01 1.4E-01 1.4E-01 1.3E-01 1.3E-01 8.0E-02 1973 1.0E-01 1.0E-01 1.0E-01 9.2E-02 8.5E-02 4.8E-02 1974 8.9E-01 8.8E-01 8.5E-01 7.7E-01 7.2E-01 3.5E-01 1975 1.6E+00 1.6E+00 1.5E+00 1.4E+00 1.4E+00 7.4E-01 1976 2.0E+00 2.0E+00 1.9E+00 1.8E+00 1.7E+00 9.5E-01 1977 4.3E-01 4.3E-01 4.2E-01 4.0E-01 3.9E-01 2.4E-01 1978 2.1E+01 2.1E+01 2.0E+01 1.8E+01 1.7E+01 9.1E+00 1979 4.2E+00 4.2E+00 4.1E+00 4.0E+00 4.0E+00 2.5E+00 1980 4.4E+00 4.4E+00 4.3E+00 4.0E+00 3.8E+00 2.2E+00 1981 3.2E+00 3.1E+00 3.0E+00 2.8E+00 2.7E+00 1.6E+00 1982 1.3E+00 1.3E+00 1.2E+00 1.2E+00 1.2E+00 7.0E-01 1983 1.4E+01 1.4E+01 1.4E+01 1.3E+01 1.2E+01 6.9E+00 1984 3.1E+00 3.1E+00 3.1E+00 2.9E+00 2.8E+00 1.8E+00 1985 7.7E-01 7.6E-01 7.5E-01 7.3E-01 7.0E-01 4.4E-01 1986 8.7E-01 8.6E-01 8.3E-01 7.7E-01 7.2E-01 4.1E-01 1987 2.2E-01 2.2E-01 2.1E-01 2.1E-01 2.0E-01 1.2E-01 1988 8.7E-02 8.6E-02 8.5E-02 8.0E-02 7.5E-02 4.8E-02 1989 2.5E+00 2.5E+00 2.4E+00 2.2E+00 2.0E+00 1.1E+00 1990 5.3E-01 5.3E-01 5.2E-01 5.1E-01 4.9E-01 3.1E-01

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 30.80 30.52 29.38 27.17 25.68 14.54 0.06 21.10 20.90 20.10 18.48 17.36 9.07 0.10 17.32 17.17 16.82 15.58 14.61 7.86 0.13 14.22 14.11 13.61 12.75 12.12 6.85 0.16 7.54 7.51 7.39 7.11 6.87 4.35 0.19 4.43 4.39 4.26 4.03 3.97 2.50 0.23 4.24 4.22 4.12 3.97 3.82 2.23 0.26 4.10 4.07 3.94 3.66 3.44 1.95 0.29 3.16 3.14 3.06 2.94 2.84 1.78 0.32 3.12 3.11 3.04 2.85 2.71 1.56 0.35 2.55 2.53 2.44 2.25 2.12 1.21 0.39 2.48 2.46 2.37 2.19 2.05 1.14 0.42 2.02 2.00 1.94 1.82 1.80 1.10 0.45 1.90 1.90 1.87 1.80 1.72 0.95 0.48 1.85 1.83 1.77 1.64 1.53 0.80 0.52 1.61 1.60 1.54 1.43 1.35 0.74 0.55 1.29 1.28 1.25 1.19 1.16 0.70 0.58 0.91 0.91 0.89 0.86 0.83 0.53 0.61 0.91 0.90 0.87 0.80 0.74 0.44 0.65 0.89 0.88 0.85 0.77 0.72 0.41 0.68 0.87 0.86 0.83 0.77 0.72 0.41 0.71 0.77 0.76 0.75 0.73 0.70 0.35 0.74 0.53 0.53 0.52 0.51 0.49 0.32 0.77 0.53 0.52 0.51 0.48 0.48 0.31 0.81 0.43 0.43 0.42 0.40 0.39 0.24 0.84 0.22 0.22 0.21 0.21 0.20 0.12 0.87 0.14 0.14 0.14 0.13 0.13 0.08 0.90 0.10 0.10 0.10 0.09 0.08 0.05 0.94 0.09 0.09 0.08 0.08 0.08 0.05 0.97 0.00 0.00 0.00 0.00 0.00 0.00

0.10 17.01 16.86 16.50 15.30 14.36 7.76 Average of yearly averages: 2.09

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Bulb CA onion gsb dw Metfile: w23155.dvf PRZM scenario: CAonion_WirrigSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 1 fraction Spray Drift DRFT 0 fraction of application rate applied to pond Application Date Date 23-01 dd/mm or dd/mmm or dd-mm or dd-mmm Interval 1 interval 21 days Set to 0 or delete line for single app. app. rate 1 apprate 1.43 kg/ha Record 17: FILTRA IPSCND 3 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)

# 45 stored as Bulb GA onion post dw.out Chemical: S-Metolachlor 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 5.90 5.72 5.09 4.45 4.32 1.16 1962 20.21 19.49 17.53 15.25 13.16 4.30 1963 38.62 37.27 33.49 28.52 24.83 7.72 1964 103.00 99.55 87.09 66.99 58.38 17.32 1965 33.29 32.40 28.99 22.97 19.55 10.73 1966 8.00 7.79 7.01 5.61 4.80 2.68 1967 12.18 11.79 10.35 8.88 7.62 2.53 1968 19.04 18.41 17.14 14.86 12.38 3.95 1969 75.04 72.75 64.06 49.41 39.83 11.74 1970 30.72 29.90 26.77 22.94 19.70 11.27 1971 97.28 93.93 86.56 67.90 53.23 15.34 1972 32.59 31.68 28.21 22.21 18.87 8.25 1973 10.21 9.88 8.60 7.82 7.04 3.15 1974 5.78 5.60 4.90 4.13 3.76 1.90 1975 45.15 43.54 37.80 33.13 28.30 7.98 1976 59.33 57.42 50.27 38.87 31.03 10.57 1977 19.88 19.37 17.40 13.87 11.80 6.94 1978 8.06 7.85 7.04 5.60 4.77 2.91 1979 35.10 33.91 30.54 24.36 21.30 6.40 1980 16.08 15.57 14.92 13.70 12.06 5.45 1981 7.05 6.82 5.98 5.48 4.79 2.69 1982 6.50 6.29 5.87 4.70 4.24 1.78 1983 14.43 13.98 12.66 9.86 8.05 2.72 1984 48.97 47.26 42.31 34.36 29.32 8.84 1985 14.31 13.94 12.52 10.13 8.84 5.25 1986 11.54 11.17 10.09 7.87 7.21 3.25 1987 13.75 13.32 11.76 9.00 7.40 3.17 1988 18.42 17.83 16.28 13.62 11.91 4.24 1989 58.63 56.68 49.39 38.60 34.02 10.01 1990 81.58 79.59 70.95 58.66 48.79 16.08

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 103.00 99.55 87.09 67.90 58.38 17.32 0.06 97.28 93.93 86.56 66.99 53.23 16.08 0.10 81.58 79.59 70.95 58.66 48.79 15.34 0.13 75.04 72.75 64.06 49.41 39.83 11.74 0.16 59.33 57.42 50.27 38.87 34.02 11.27 0.19 58.63 56.68 49.39 38.60 31.03 10.73 0.23 48.97 47.26 42.31 34.36 29.32 10.57 0.26 45.15 43.54 37.80 33.13 28.30 10.01 0.29 38.62 37.27 33.49 28.52 24.83 8.84 0.32 35.10 33.91 30.54 24.36 21.30 8.25 0.35 33.29 32.40 28.99 22.97 19.70 7.98 0.39 32.59 31.68 28.21 22.94 19.55 7.72 0.42 30.72 29.90 26.77 22.21 18.87 6.94 0.45 20.21 19.49 17.53 15.25 13.16 6.40 0.48 19.88 19.37 17.40 14.86 12.38 5.45 0.52 19.04 18.41 17.14 13.87 12.06 5.25 0.55 18.42 17.83 16.28 13.70 11.91 4.30 0.58 16.08 15.57 14.92 13.62 11.80 4.24 0.61 14.43 13.98 12.66 10.13 8.84 3.95 0.65 14.31 13.94 12.52 9.86 8.05 3.25 0.68 13.75 13.32 11.76 9.00 7.62 3.17 0.71 12.18 11.79 10.35 8.88 7.40 3.15 0.74 11.54 11.17 10.09 7.87 7.21 2.91 0.77 10.21 9.88 8.60 7.82 7.04 2.72 0.81 8.06 7.85 7.04 5.61 4.80 2.69 0.84 8.00 7.79 7.01 5.60 4.79 2.68 0.87 7.05 6.82 5.98 5.48 4.77 2.53 0.90 6.50 6.29 5.87 4.70 4.32 1.90 0.94 5.90 5.72 5.09 4.45 4.24 1.78 0.97 5.78 5.60 4.90 4.13 3.76 1.16

0.10 80.93 78.91 70.26 57.74 47.89 14.98 Average of yearly averages: 6.68

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Bulb GA onion post dw Metfile: w03822.dvf PRZM scenario: GAOnion_WirrigSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 22-09 dd/mm or dd/mmm or dd-mm or dd-mmm Interval 1 interval 21 days Set to 0 or delete line for single app. app. rate 1 apprate 1.43 kg/ha Record 17: FILTRA IPSCND 3 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)

# 46 stored as Bulb GA onion gsb dw.out Chemical: S-Metolachlor 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 3.02 2.93 2.67 1.66 1.11 0.27 1962 17.13 16.52 14.33 11.57 9.92 3.04 1963 35.64 34.40 29.93 24.71 21.47 6.44 1964 96.10 93.01 81.36 62.58 54.52 15.89 1965 31.13 30.29 27.10 21.47 18.27 9.41 1966 6.19 6.03 5.43 4.35 3.72 1.43 1967 7.21 6.96 6.49 5.17 4.37 1.27 1968 14.16 13.69 12.54 11.22 9.05 2.67 1969 68.21 66.13 58.21 44.86 35.47 10.18 1970 27.87 27.13 24.28 19.23 16.45 9.81 1971 90.65 87.54 80.93 63.58 49.48 13.96 1972 30.54 29.69 26.43 20.81 17.67 6.92 1973 6.14 5.92 5.13 4.16 3.81 1.86 1974 2.69 2.61 2.31 1.81 1.53 0.66 1975 42.18 40.67 35.17 29.67 25.22 6.80 1976 53.08 51.37 44.97 34.79 27.36 9.24 1977 17.81 17.34 15.58 12.41 10.56 5.59 1978 6.11 5.94 5.32 4.23 3.60 1.61 1979 32.05 30.97 27.07 20.64 17.95 5.11 1980 12.64 12.21 10.66 9.98 8.82 4.17 1981 5.04 4.91 4.41 3.51 2.99 1.43 1982 1.78 1.73 1.50 1.23 1.06 0.54 1983 10.17 9.86 8.95 6.79 4.65 1.42 1984 46.18 44.57 38.89 30.74 26.13 7.57 1985 12.57 12.25 11.00 8.77 7.48 3.98 1986 7.93 7.68 6.88 4.91 3.88 1.94 1987 9.32 9.02 7.97 6.01 4.04 1.84 1988 13.34 12.91 11.94 9.85 8.67 2.96 1989 52.71 50.95 44.40 34.55 30.48 8.69 1990 78.12 76.37 67.09 55.59 46.13 14.93

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 96.10 93.01 81.36 63.58 54.52 15.89 0.06 90.65 87.54 80.93 62.58 49.48 14.93 0.10 78.12 76.37 67.09 55.59 46.13 13.96 0.13 68.21 66.13 58.21 44.86 35.47 10.18 0.16 53.08 51.37 44.97 34.79 30.48 9.81 0.19 52.71 50.95 44.40 34.55 27.36 9.41 0.23 46.18 44.57 38.89 30.74 26.13 9.24 0.26 42.18 40.67 35.17 29.67 25.22 8.69 0.29 35.64 34.40 29.93 24.71 21.47 7.57 0.32 32.05 30.97 27.10 21.47 18.27 6.92 0.35 31.13 30.29 27.07 20.81 17.95 6.80 0.39 30.54 29.69 26.43 20.64 17.67 6.44 0.42 27.87 27.13 24.28 19.23 16.45 5.59 0.45 17.81 17.34 15.58 12.41 10.56 5.11 0.48 17.13 16.52 14.33 11.57 9.92 4.17 0.52 14.16 13.69 12.54 11.22 9.05 3.98 0.55 13.34 12.91 11.94 9.98 8.82 3.04 0.58 12.64 12.25 11.00 9.85 8.67 2.96 0.61 12.57 12.21 10.66 8.77 7.48 2.67 0.65 10.17 9.86 8.95 6.79 4.65 1.94 0.68 9.32 9.02 7.97 6.01 4.37 1.86 0.71 7.93 7.68 6.88 5.17 4.04 1.84 0.74 7.21 6.96 6.49 4.91 3.88 1.61 0.77 6.19 6.03 5.43 4.35 3.81 1.43 0.81 6.14 5.94 5.32 4.23 3.72 1.43 0.84 6.11 5.92 5.13 4.16 3.60 1.42 0.87 5.04 4.91 4.41 3.51 2.99 1.27 0.90 3.02 2.93 2.67 1.81 1.53 0.66 0.94 2.69 2.61 2.31 1.66 1.11 0.54 0.97 1.78 1.73 1.50 1.23 1.06 0.27

0.10 77.13 75.35 66.20 54.52 45.06 13.58 Average of yearly averages: 5.39

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Bulb GA onion gsb dw Metfile: w03822.dvf PRZM scenario: GAOnion_WirrigSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 1 fraction Spray Drift DRFT 0 fraction of application rate applied to pond Application Date Date 22-09 dd/mm or dd/mmm or dd-mm or dd-mmm Interval 1 interval 21 days Set to 0 or delete line for single app. app. rate 1 apprate 1.43 kg/ha Record 17: FILTRA IPSCND 3 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)

# 47 stored as Green CA onion post dw.out Chemical: S-Metolachlor 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 3.34 3.31 3.20 2.96 2.79 1.54 1962 10.69 10.60 10.39 9.80 9.24 5.25 1963 11.92 11.82 11.40 10.58 10.03 6.01 1964 6.21 6.17 6.01 5.66 5.40 3.30 1965 4.74 4.71 4.57 4.30 4.09 2.46 1966 7.84 7.78 7.54 7.01 6.66 3.84 1967 5.02 4.99 4.85 4.55 4.34 2.59 1968 4.39 4.36 4.22 3.94 3.75 2.16 1969 4.24 4.21 4.08 3.86 3.68 2.10 1970 6.15 6.09 5.88 5.44 5.13 2.92 1971 4.52 4.49 4.35 4.08 3.87 2.25 1972 4.29 4.26 4.13 3.84 3.62 2.06 1973 4.20 4.17 4.04 3.74 3.55 1.99 1974 4.13 4.10 3.97 3.72 3.54 2.01 1975 5.42 5.38 5.20 4.82 4.59 2.65 1976 5.88 5.85 5.70 5.29 5.01 2.91 1977 4.54 4.51 4.37 4.07 3.85 2.19 1978 26.32 26.08 25.10 23.07 21.67 11.57 1979 8.30 8.25 8.04 7.64 7.30 4.41 1980 5.95 5.90 5.72 5.54 5.33 3.22 1981 6.75 6.70 6.48 6.02 5.69 3.22 1982 4.96 4.92 4.76 4.55 4.36 2.52 1983 18.06 17.92 17.30 16.03 15.17 8.63 1984 7.06 7.02 6.84 6.45 6.16 3.77 1985 4.92 4.89 4.76 4.45 4.23 2.50 1986 4.44 4.40 4.26 3.99 3.79 2.23 1987 4.32 4.29 4.16 3.89 3.68 2.13 1988 4.25 4.22 4.09 3.80 3.60 2.07 1989 6.50 6.45 6.24 5.78 5.43 3.14 1990 4.73 4.70 4.57 4.28 4.05 2.36

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 26.32 26.08 25.10 23.07 21.67 11.57 0.06 18.06 17.92 17.30 16.03 15.17 8.63 0.10 11.92 11.82 11.40 10.58 10.03 6.01 0.13 10.69 10.60 10.39 9.80 9.24 5.25 0.16 8.30 8.25 8.04 7.64 7.30 4.41 0.19 7.84 7.78 7.54 7.01 6.66 3.84 0.23 7.06 7.02 6.84 6.45 6.16 3.77 0.26 6.75 6.70 6.48 6.02 5.69 3.30 0.29 6.50 6.45 6.24 5.78 5.43 3.22 0.32 6.21 6.17 6.01 5.66 5.40 3.22 0.35 6.15 6.09 5.88 5.54 5.33 3.14 0.39 5.95 5.90 5.72 5.44 5.13 2.92 0.42 5.88 5.85 5.70 5.29 5.01 2.91 0.45 5.42 5.38 5.20 4.82 4.59 2.65 0.48 5.02 4.99 4.85 4.55 4.36 2.59 0.52 4.96 4.92 4.76 4.55 4.34 2.52 0.55 4.92 4.89 4.76 4.45 4.23 2.50 0.58 4.74 4.71 4.57 4.30 4.09 2.46 0.61 4.73 4.70 4.57 4.28 4.05 2.36 0.65 4.54 4.51 4.37 4.08 3.87 2.25 0.68 4.52 4.49 4.35 4.07 3.85 2.23 0.71 4.44 4.40 4.26 3.99 3.79 2.19 0.74 4.39 4.36 4.22 3.94 3.75 2.16 0.77 4.32 4.29 4.16 3.89 3.68 2.13 0.81 4.29 4.26 4.13 3.86 3.68 2.10 0.84 4.25 4.22 4.09 3.84 3.62 2.07 0.87 4.24 4.21 4.08 3.80 3.60 2.06 0.90 4.20 4.17 4.04 3.74 3.55 2.01 0.94 4.13 4.10 3.97 3.72 3.54 1.99 0.97 3.34 3.31 3.20 2.96 2.79 1.54

0.10 11.80 11.70 11.30 10.50 9.95 5.93 Average of yearly averages: 3.33

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Green CA onion post dw Metfile: w23155.dvf PRZM scenario: CAonion_WirrigSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 23-01 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 48 stored as Green CA onion gsb dw.out Chemical: S-Metolachlor 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 3E-07 3E-07 3E-07 3E-07 3E-07 1E-07 1962 7E+00 7E+00 6E+00 6E+00 6E+00 3E+00 1963 8E+00 8E+00 7E+00 7E+00 6E+00 4E+00 1964 2E+00 2E+00 2E+00 2E+00 2E+00 1E+00 1965 5E-01 5E-01 5E-01 5E-01 4E-01 3E-01 1966 4E+00 4E+00 4E+00 3E+00 3E+00 2E+00 1967 8E-01 8E-01 8E-01 8E-01 7E-01 5E-01 1968 3E-01 3E-01 3E-01 2E-01 2E-01 2E-01 1969 2E-01 2E-01 2E-01 1E-01 1E-01 8E-02 1970 2E+00 2E+00 2E+00 2E+00 2E+00 9E-01 1971 4E-01 4E-01 4E-01 4E-01 4E-01 2E-01 1972 1E-01 1E-01 1E-01 1E-01 1E-01 6E-02 1973 3E-02 3E-02 3E-02 2E-02 2E-02 1E-02 1974 9E-02 9E-02 8E-02 8E-02 7E-02 4E-02 1975 1E+00 1E+00 1E+00 1E+00 1E+00 6E-01 1976 2E+00 2E+00 2E+00 2E+00 2E+00 9E-01 1977 4E-01 4E-01 4E-01 4E-01 4E-01 2E-01 1978 2E+01 2E+01 2E+01 2E+01 2E+01 9E+00 1979 4E+00 4E+00 4E+00 4E+00 4E+00 2E+00 1980 2E+00 2E+00 2E+00 2E+00 2E+00 1E+00 1981 3E+00 3E+00 3E+00 2E+00 2E+00 1E+00 1982 1E+00 1E+00 1E+00 1E+00 9E-01 6E-01 1983 1E+01 1E+01 1E+01 1E+01 1E+01 7E+00 1984 3E+00 3E+00 3E+00 3E+00 3E+00 2E+00 1985 7E-01 7E-01 7E-01 7E-01 7E-01 4E-01 1986 2E-01 2E-01 2E-01 2E-01 2E-01 1E-01 1987 6E-02 6E-02 6E-02 6E-02 6E-02 4E-02 1988 2E-02 2E-02 2E-02 2E-02 2E-02 1E-02 1989 2E+00 2E+00 2E+00 2E+00 2E+00 1E+00 1990 5E-01 5E-01 5E-01 5E-01 5E-01 3E-01

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 21.09 20.89 20.10 18.44 17.31 9.03 0.06 14.15 14.04 13.54 12.53 11.84 6.65 0.10 7.68 7.61 7.33 6.80 6.43 3.72 0.13 6.68 6.62 6.43 6.08 5.73 3.10 0.16 4.13 4.11 4.04 3.89 3.77 2.31 0.19 3.70 3.67 3.55 3.28 3.08 1.72 0.23 3.01 3.00 2.95 2.84 2.74 1.71 0.26 2.67 2.65 2.56 2.38 2.25 1.25 0.29 2.46 2.44 2.36 2.17 2.03 1.17 0.32 2.23 2.21 2.13 1.97 1.87 1.10 0.35 2.18 2.16 2.10 1.95 1.84 1.09 0.39 1.98 1.96 1.90 1.80 1.74 0.95 0.42 1.91 1.90 1.87 1.77 1.67 0.92 0.45 1.46 1.44 1.39 1.28 1.21 0.65 0.48 1.10 1.09 1.06 0.99 0.94 0.56 0.52 0.80 0.80 0.79 0.76 0.73 0.46 0.55 0.74 0.74 0.73 0.70 0.68 0.43 0.58 0.53 0.53 0.52 0.50 0.49 0.30 0.61 0.48 0.48 0.47 0.45 0.45 0.30 0.65 0.43 0.42 0.42 0.40 0.39 0.25 0.68 0.41 0.41 0.40 0.39 0.37 0.23 0.71 0.27 0.27 0.26 0.24 0.23 0.15 0.74 0.22 0.22 0.22 0.20 0.20 0.14 0.77 0.16 0.16 0.15 0.14 0.13 0.08 0.81 0.11 0.11 0.11 0.10 0.10 0.06 0.84 0.09 0.09 0.08 0.08 0.07 0.04 0.87 0.06 0.06 0.06 0.06 0.06 0.04 0.90 0.03 0.03 0.03 0.02 0.02 0.01 0.94 0.02 0.02 0.02 0.02 0.02 0.01 0.97 0.00 0.00 0.00 0.00 0.00 0.00

0.10 7.58 7.51 7.24 6.72 6.36 3.65 Average of yearly averages: 1.28

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Green CA onion gsb dw Metfile: w23155.dvf PRZM scenario: CAonion_WirrigSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 1 fraction Spray Drift DRFT 0 fraction of application rate applied to pond Application Date Date 23-01 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 49 stored as Green GA onion post dw.out Chemical: S-Metolachlor 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 3.34 3.22 2.78 2.09 2.03 0.55 1962 20.13 19.42 16.85 12.80 10.68 3.11 1963 38.56 37.22 32.39 24.87 20.87 6.33 1964 49.04 47.65 44.13 35.21 29.53 9.48 1965 21.27 20.55 18.00 14.24 12.00 6.12 1966 5.42 5.28 4.75 3.81 3.27 1.71 1967 10.16 9.82 8.99 7.09 5.95 1.77 1968 7.59 7.37 6.88 5.80 5.03 1.90 1969 24.62 23.88 21.07 19.04 17.02 4.97 1970 28.28 27.26 23.76 18.42 15.40 6.05 1971 24.03 23.20 21.14 16.42 13.16 4.83 1972 7.82 7.60 6.78 5.34 4.54 2.29 1973 9.12 8.79 7.61 5.79 4.91 1.72 1974 3.42 3.30 2.86 2.17 1.91 0.97 1975 45.10 43.48 37.60 28.91 24.10 6.48 1976 12.50 12.10 10.62 8.44 7.58 4.12 1977 7.92 7.65 6.68 5.81 5.10 2.22 1978 3.95 3.86 3.45 2.74 2.38 1.21 1979 35.02 33.84 29.56 22.34 18.72 5.11 1980 15.45 14.92 13.02 10.28 8.66 3.98 1981 4.24 4.13 3.72 2.97 2.64 1.59 1982 3.39 3.27 2.91 2.53 2.17 0.86 1983 4.99 4.84 4.37 3.41 3.10 1.07 1984 48.84 47.13 41.15 31.28 26.04 7.09 1985 11.59 11.30 10.16 8.12 6.92 3.40 1986 5.11 4.94 4.30 3.70 3.43 1.36 1987 4.82 4.67 4.12 3.17 2.96 1.24 1988 12.23 11.83 10.49 8.45 7.21 2.30 1989 33.04 31.93 28.56 23.12 19.46 5.71 1990 79.52 77.70 67.86 51.71 42.14 12.43

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 79.52 77.70 67.86 51.71 42.14 12.43 0.06 49.04 47.65 44.13 35.21 29.53 9.48 0.10 48.84 47.13 41.15 31.28 26.04 7.09 0.13 45.10 43.48 37.60 28.91 24.10 6.48 0.16 38.56 37.22 32.39 24.87 20.87 6.33 0.19 35.02 33.84 29.56 23.12 19.46 6.12 0.23 33.04 31.93 28.56 22.34 18.72 6.05 0.26 28.28 27.26 23.76 19.04 17.02 5.71 0.29 24.62 23.88 21.14 18.42 15.40 5.11 0.32 24.03 23.20 21.07 16.42 13.16 4.97 0.35 21.27 20.55 18.00 14.24 12.00 4.83 0.39 20.13 19.42 16.85 12.80 10.68 4.12 0.42 15.45 14.92 13.02 10.28 8.66 3.98 0.45 12.50 12.10 10.62 8.45 7.58 3.40 0.48 12.23 11.83 10.49 8.44 7.21 3.11 0.52 11.59 11.30 10.16 8.12 6.92 2.30 0.55 10.16 9.82 8.99 7.09 5.95 2.29 0.58 9.12 8.79 7.61 5.81 5.10 2.22 0.61 7.92 7.65 6.88 5.80 5.03 1.90 0.65 7.82 7.60 6.78 5.79 4.91 1.77 0.68 7.59 7.37 6.68 5.34 4.54 1.72 0.71 5.42 5.28 4.75 3.81 3.43 1.71 0.74 5.11 4.94 4.37 3.70 3.27 1.59 0.77 4.99 4.84 4.30 3.41 3.10 1.36 0.81 4.82 4.67 4.12 3.17 2.96 1.24 0.84 4.24 4.13 3.72 2.97 2.64 1.21 0.87 3.95 3.86 3.45 2.74 2.38 1.07 0.90 3.42 3.30 2.91 2.53 2.17 0.97 0.94 3.39 3.27 2.86 2.17 2.03 0.86 0.97 3.34 3.22 2.78 2.09 1.91 0.55

0.10 48.47 46.77 40.80 31.04 25.85 7.03 Average of yearly averages: 3.73

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Green GA onion post dw Metfile: w03822.dvf PRZM scenario: GAOnion_WirrigSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 0.99 fraction Spray Drift DRFT 0.064 fraction of application rate applied to pond Application Date Date 22-09 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 50 stored as Green GA onion gsb dw.out Chemical: S-Metolachlor 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 1.08 1.05 0.96 0.61 0.41 0.10 1962 17.09 16.48 14.30 10.88 9.08 2.51 1963 35.61 34.37 29.91 22.99 19.31 5.72 1964 46.11 44.81 41.63 33.31 27.94 8.85 1965 18.49 17.86 15.65 12.28 10.37 5.52 1966 4.72 4.60 4.15 3.33 2.85 1.11 1967 7.20 6.95 6.48 5.16 4.33 1.16 1968 5.54 5.36 5.01 4.23 3.53 1.29 1969 22.94 22.25 19.63 17.26 15.53 4.36 1970 25.31 24.39 21.27 16.54 13.83 5.45 1971 21.53 20.79 19.02 14.80 11.57 4.20 1972 7.04 6.85 6.10 4.80 4.08 1.66 1973 6.05 5.83 5.05 3.87 3.28 1.12 1974 1.61 1.57 1.39 1.09 0.93 0.37 1975 42.16 40.65 35.15 27.04 22.56 5.93 1976 10.28 9.96 8.73 6.74 5.86 3.53 1977 5.03 4.86 4.25 3.95 3.50 1.61 1978 2.02 1.97 1.77 1.41 1.21 0.60 1979 32.00 30.93 27.03 20.37 17.06 4.50 1980 12.60 12.16 10.61 8.45 7.14 3.38 1981 3.52 3.43 3.09 2.47 2.11 0.97 1982 0.77 0.74 0.65 0.54 0.47 0.25 1983 3.39 3.29 2.97 2.24 1.54 0.45 1984 46.09 44.48 38.81 29.50 24.55 6.51 1985 10.93 10.65 9.58 7.65 6.53 2.82 1986 2.76 2.67 2.42 2.12 1.89 0.76 1987 3.12 3.02 2.67 2.01 1.35 0.63 1988 9.48 9.17 8.16 6.68 5.63 1.69 1989 30.11 29.10 26.09 21.25 17.89 5.09 1990 77.91 76.16 66.48 50.67 41.11 11.93

Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.03 77.91 76.16 66.48 50.67 41.11 11.93 0.06 46.11 44.81 41.63 33.31 27.94 8.85 0.10 46.09 44.48 38.81 29.50 24.55 6.51 0.13 42.16 40.65 35.15 27.04 22.56 5.93 0.16 35.61 34.37 29.91 22.99 19.31 5.72 0.19 32.00 30.93 27.03 21.25 17.89 5.52 0.23 30.11 29.10 26.09 20.37 17.06 5.45 0.26 25.31 24.39 21.27 17.26 15.53 5.09 0.29 22.94 22.25 19.63 16.54 13.83 4.50 0.32 21.53 20.79 19.02 14.80 11.57 4.36 0.35 18.49 17.86 15.65 12.28 10.37 4.20 0.39 17.09 16.48 14.30 10.88 9.08 3.53 0.42 12.60 12.16 10.61 8.45 7.14 3.38 0.45 10.93 10.65 9.58 7.65 6.53 2.82 0.48 10.28 9.96 8.73 6.74 5.86 2.51 0.52 9.48 9.17 8.16 6.68 5.63 1.69 0.55 7.20 6.95 6.48 5.16 4.33 1.66 0.58 7.04 6.85 6.10 4.80 4.08 1.61 0.61 6.05 5.83 5.05 4.23 3.53 1.29 0.65 5.54 5.36 5.01 3.95 3.50 1.16 0.68 5.03 4.86 4.25 3.87 3.28 1.12 0.71 4.72 4.60 4.15 3.33 2.85 1.11 0.74 3.52 3.43 3.09 2.47 2.11 0.97 0.77 3.39 3.29 2.97 2.24 1.89 0.76 0.81 3.12 3.02 2.67 2.12 1.54 0.63 0.84 2.76 2.67 2.42 2.01 1.35 0.60 0.87 2.02 1.97 1.77 1.41 1.21 0.45 0.90 1.61 1.57 1.39 1.09 0.93 0.37 0.94 1.08 1.05 0.96 0.61 0.47 0.25 0.97 0.77 0.74 0.65 0.54 0.41 0.10

0.10 45.70 44.10 38.44 29.25 24.35 6.45 Average of yearly averages: 3.14

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run: Output File: Green GA onion gsb dw Metfile: w03822.dvf PRZM scenario: GAOnion_WirrigSTD.txt EXAMS environment file: ir298.exv Chemical Name: S-Metolachlor Description Variable Name Value Units Comments Molecular weight mwt 283.8 g/mol Henry's Law Const. henry 2.20E-08 atm-m^3/mol Vapor Pressure vapr 2.80E-05 torr Solubility sol 480 mg/L Kd Kd mg/L Koc Koc 181 mg/L Photolysis half-life kdp 70 days Half-life Aerobic Aquatic Metabolism kbacw 141 days Halfife Anaerobic Aquatic Metabolism kbacs 234 days Halfife Aerobic Soil Metabolism asm 48.9 days Halfife Hydrolysis: pH 7 0 days Half-life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI cm Application Rate: TAPP 1.43 kg/ha Application Efficiency: APPEFF 1 fraction Spray Drift DRFT 0 fraction of application rate applied to pond Application Date Date 22-09 dd/mm or dd/mmm or dd-mm or dd-mmm Record 17: FILTRA IPSCND 3 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)

# 51

**SCI**

**- GROW Output: S** 

**- Metolachlor Parent** 

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:S

-Metolachlor time is 4/ 8/2010 19:41:46

------------------------------------------------------------------------ Application Number of Total Use Koc Soil Aerobic rate (lb/acre) applications (lb/acre/yr) (ml/g) metabolism (days)

------------------------------------------------------------------------ 3.810 1.0 3.810 2.16E+01 37.8

------------------------------------------------------------------------ groundwater screening cond (ppb) = 5.26E+00

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



# FIRST Output: S

**- Metolachlor Degradate Ethanesulfonic Acid (ESA)** 

RUN No. 1 FOR S

-Metolachlor ESA ON Caneberry * INPUT VALUES *

-------------------------------------------------------------------- RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP ONE(MULT) INTERVAL Kd (PPM ) (%DRIFT) AREA (IN)

# 52

-------------------------------------------------------------------- 0.530( 0.530) 1 1 0.0 480.0 GRANUL( 0.0) 87.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

-------------------------------------------------------------------- METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED (FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

-EFF) (RESER.) (RESER.)

-------------------------------------------------------------------- 162.50 2 N/A 0.00

- 0.00 0.00 0.00

UNTREATED WATER CONC (MICROGRAMS/LITER (PPB)) Ver 1.1.1 MAR 26, 2008

-------------------------------------------------------------------- PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC) CONCENTRATION CONCENTRATION

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

47.611 34.040



# SCI

**- GROW Output: S** 

**- Metolachlor Degradate Ethanesulfonic Acid (ESA)** 

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:S

-Metolachlor ESA time is 4/11/2010 10:39:35

------------------------------------------------------------------------ Application Number of Total Use Koc Soil Aerobic rate (lb/acre) applications (lb/acre/yr) (ml/g) metabolism (days)

------------------------------------------------------------------------ 0.530 1.0 0.530 2.01E+00 153.5

------------------------------------------------------------------------ groundwater screening cond (ppb) = 4.59E+01

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



# FIRST Ou**tput: S**

**- Metolachlor Degradate Oxanillic Acid (OA)** 

RUN No. 1 FOR S

-Metolachlor OA ON Caneberry * INPUT VALUES *

-------------------------------------------------------------------- RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP ONE(MULT) INTERVAL Kd (PPM ) (%DRIFT) AREA (IN)

-------------------------------------------------------------------- 1.050( 1.050) 1 1 0.1 480.0 GRANUL( 0.0) 87.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

# 53

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED (FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

-EFF) (RESER.) (RESER.)

-------------------------------------------------------------------- 127.50 2 N/A 0.00

- 0.00 0.00 0.00

UNTREATED WATER CONC (MICROGRAMS/LITER (PPB)) Ver 1.1.1 MAR 26, 2008

-------------------------------------------------------------------- PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC) CONCENTRATION CONCENTRATION

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

93.571 66.617



# SCI

**- GROW Output: S** 

**- Metolachlor Degra** **date Oxanillic Acid (OA)**

OFFICE OF PESTICIDE PROGRAMS U.S. ENVIRONMENTAL PROTECTION AGENCY SCREENING MODEL FOR AQUATIC PESTICIDE EXPOSURE

SciGrow version 2.3 chemical:S

-Metolachlor OA time is 4/11/2010 11: 1:15

------------------------------------------------------------------------ Application Number of Total Use Koc Soil Aerobic rate (lb/acre) applications (lb/acre/yr) (ml/g) metabolism (days)

------------------------------------------------------------------------ 1.050 1.0 1.050 2.82E+00 93.8

------------------------------------------------------------------------ groundwater screening cond (ppb) = 2.97E+01

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