
                     U. S. ENVIRONMENTAL PROTECTION AGENCY

	Washington, D.C. 20460	

                                                                        OFFICE OF 
	CHEMICAL SAFETY AND
	POLLUTION PREVENTION


                                                      Date:  July 19, 2011
                                                      PC Code:  128711
                                                      DP Barcode:  DP 384661
                                                      Decision:  441518

MEMORANDUM

SUBJECT:	Drinking Water Exposure for Quizalofop-P-Ethyl in Support of Propagation of Herbicide-tolerant Field Corn and Sorghum

TO:		Laura Nollen, Risk Manager Reviewer
		Barbara Madden, Risk Manager
		Registration Division (7505C) 

FROM:	Stephen P. Wente, Biologist
            Environmental Risk Branch I
            Environmental Fate and Effects Division (7504P)

THRU:	Nancy Andrews, Branch Chief 
            Sujatha Sankula, Lead Biologist
            Environmental Risk Branch I
            Environmental Fate and Effects Division (7504P)

I.	Exposure Summary
                              
A Tier II drinking water assessment of surface water was performed to assess drinking water exposure for quizalofop-p-ethyl in support of propagation of herbicide-tolerant field corn and sorghum. (A rapeseed use that appears on the sorghum supplemental label was previously assessed under DP 310868 on 10/25/2005.) The PRZM/EXAMS simulations of several corn scenarios and a sorghum scenario produced the highest estimated drinking water concentrations (EDWC) of 6.5 ug/L for acute exposure, 2.0 ug/L for chronic exposure, and 1.3 ug/L for long-term cancer exposure from MS corn scenario (Table 4). These values are higher than the previously predicted EDWCs of 5.25 ug/L for acute exposure, 1.99 ug/L for chronic exposure, and 1.34 ug/L for long-term cancer exposure. Additionally, the Tier 1 drinking water predicted EDWC of 1.29 ug/L for both acute and chronic exposure is higher than the previous highest EDWC of 0.15 ug/L for ground water. Therefore, the previous EDWCs should be updated for surface drinking water and groundwater drinking water exposure assessment purposes.

II.	Proposed Use Information

The national-scale quizalofop-p-ethyl use information can be found from the web site of National Pesticide Synthesis Program (NPSP) of the U.S. Geological Survey at: http://water.usgs.gov/nawqa/pnsp/usage/maps/show_map.php?year=02&map=m7006 (shown here as Figure 1.

Figure 1.  National-scale quizalofop-p-ethyl usage in 2002 as estimated by U.S. Geological Survey procedures.

This drinking water exposure assessment addresses use of quizalofop-p-ethyl on corn to produce herbicide-tolerant field corn seed as described on the proposed Assure(R) II label (EPA Reg. No. 352-541). This is a liquid herbicide applied as a foliar spray to control certain grassy weeds in field com containing DAS-40278-9 and selectively eliminates plants that do not carry a gene that imparts tolerance to quizalofop-p-ethyl herbicides used for propagation, breeding, and production. Assure(R) II may be applied to remove susceptible "segregates" (i.e., com plants that do not contain the quizalofop-p-ethyl tolerance trait) during seed propagation. According to the proposed label quizalofop-p-ethyl is applied at a rate 0.034 to 0.083 lbs a.i./A, not exceed two applications for total annual application rate of 0.083 lbs a.i./A.


III.	Water Resources Summary

No monitoring data was located during a search of the NAWQA data warehouse for quizalofop-p-ethyl or quizalofop-ethyl. Therefore, only model-generated EDWCs will be used in this drinking water assessment.

Surface Water Sources

The estimated drinking water concentrations from surface water sources were calculated using Tier II models PRZM (Pesticide Root Zone Model) and EXAMS (Exposure Analysis Modeling System). PRZM is used to simulate pesticide transport as the result of runoff and erosion from an agricultural field. EXAMS is used to estimate environmental fate and transport of pesticides in the receiving water bodies. A fraction of the application amount is added as spray drift loading to the receiving water bodies. The magnitude of the drift loading is dependent on the method of application. The current EFED approach is to use the linkage program  -  PE5V01, which incorporates the standard scenarios developed by EFED.

For drinking water purposes, the index reservoir is simulated. The index reservoir is based on a 172.8 ha watershed draining into a 5.3 ha reservoir with a depth of 2.74 m. A single steady flow is used to represent the flow through the reservoir. The index reservoir scenario uses the characteristics of a single soil to represent the soil in the watershed. Weather and agricultural practices are simulated over 30 years so that the 1-in10 year exceedence probability at the site can be estimated. The values generated by the models for drinking water were multiplied by a crop area factor (PCA), which accounts for the fact that it is unlikely for any basin to be completely planted to agricultural crops. Currently, EFED uses a default PCA of 0.87 for the combination of crops to which quizalofop-p-ethyl can be applied.

Ground Water Sources

The estimated drinking water concentrations from ground water sources were calculated using the Tier I SCIGROW (Screening Concentration In Ground Water) model. It is a regression approach model, based on the results of several prospective ground water monitoring studies. SCIGROW was developed using Koc values ranging from 32 - 180 ml/g and half-lives from 13 - 1000 days. Extrapolation beyond these values will increase the uncertainty of the predicted ground water concentrations.

For further information on these models see, http://www.epa.gov/oppefed1/models/water/index.htm

The model inputs for PRZM/EXAMS and SCIGROW are presented below. These input selections are based on the Guidance for Selecting Input Parameters in Modeling the Environmental Fate and Transport of Pesticides, Version 2.1 (October 22, 2009). 

Scenario Description

The model scenarios are only applicable to surface water models PRZM/EXAMS. (The ground water model, SCIGROW, is site independent.) Standard corn scenarios are available for Illinois Mississippi, North Carolina, Ohio, and Pennsylvania. A single standard scenario, Kansas, is available for sorghum. The proposed label recommends applying quizalofop-p-ethyl on corn that is at the V2 through V6 stage of development, approximately 1 to 3 weeks after the emergence date. Sorghum applications can occur between emergence and 45 days before harvest. Therefore the quizalofop-p-ethyl application date was chosen to be 2 weeks after the scenario emergence date for corn and within the appropriate interval for sorghum. The specific modeling scenario information, such as Major Land Resource Region, meteorological file, soil, and crop emergence, application dates, is presented in Table 1.

Table 1.  Corn scenarios employed in this assessment.
                                   Scenario
                      Crop Region, Met File and Soil Info
                            Crop Development Event
                               Application Date
                                     Corn
Illinois
MLRA: 108, McLean Co., IL
Metfile: W14842, Soil: Adair Clay Loam
                             5/1 (emergence date)
                        5/15 (2 weeks after emergence)
Mississippi
MLRA: 134, Southern MS Valley Uplands
Metfile: W03940, Soil: Grenada Silt Loam
                             4/10 (emergence date)
                        4/24 (2 weeks after emergence)
North Carolina
MLRA: 153A, Pitt Co., NC
Metfile: W13722, Soil: Craven silt loam
                             4/15 (emergence date)
                        4/29 (2 weeks after emergence)
Ohio
MLRA: 111, Darke and Rickaway Co., OH
Metfile: W93815, Soil: Cardington Silt Loam
                             5/1 (emergence date)
                        5/15 (2 weeks after emergence)
Pennsylvania
MLRA: 148, Lancaster Co.
Metfile: W14751, Soil: Hagerstown Silt Loam
                             4/16 (emergence date)
                        4/30 (2 weeks after emergence)
                                    Sorghum
Kansas
MLRA: M106, Brown County, KS
Metfile: W13996, Soil: Wymore silty clay loam
                             10/20 (harvest date)
                    8/15 (at least 45 days before harvest)
MLRA: Major Land Resource Area; Metfile: the meteorological file used in the simulation.

Model Inputs

Based on the fact that quizalofop-p-ethyl degrades quickly with a half-life of 1 day in laboratory studies, the major aquatic exposure concern would be the quizalofop acid degradate. A total toxics residue (TTR) approach was used to estimate EDWCs based on both the parent and quizalofop acid degradate. No Residue of Concern Knowledge-Based Sub Committee (ROCKS) decision memo was located. Therefore, the choice of chemicals included in the TTR approach was based on the chemicals included in previous drinking water assessments (parent and quizalofop acid degradate only). Structures of the parent, degradate of concern, and other degradates identified in the fate studies appear in Appendix A. The following assumptions have been made in order to provide the exposure values for screening purposes:
      1.	Quizalofop-p-ethyl is completely and rapidly converted to quizalofop acid.
      2.	Quizalofop acid does not degrade by hydrolysis.
      3.	The solubility of quizalofop acid is assumed the same as the parent.

The physical/chemical input parameters for PRZM and EXAMS appear in Table 2.

Table 2.  Physical/chemical PRZM and EXAMS input parameters.
                                Model Parameter
                                     Value
                                   Comments
Molecular Weight
344.8
Quizalofop Acid
Water Solubility
0.4 mg/l
Parent quizalofop-p-ethyl
Vapor Pressure
3 x 10-7 torr (mm Hg)
Parent quizalofop-p-ethyl
Spray Drift
6.4%
Ground application only
Aerobic Soil Metabolism t(1/2)
407 days
Combined parent, quizalofop-acid, and bound residues (Ascn # 146697 and MRID 43235603)
Anaerobic Soil Metabolism t(1/2)
Stable
Ascn # 146696 is unacceptable.
Aerobic Aquatic Degradation t(1/2)
814 days
2 x aerobic soil metabolism t(1/2)
Anaerobic Aquatic Degradation t(1/2)
420 days
Combined parent, quizalofop-acid, and bound residues (Ascn # 146697)
Aqueous Photolysis t(1/2)
85.4 days
Combined parent and quizalofop-acid (Ascn # 146693)
Hydrolysis t(1/2)
Stable
Combined parent and quizalofop-acid (No MRID located  -  based on DER only)
Kd/Koc
256 ml/g
Mean quizalofop-acid Koc (136, 90, 372, 425) (Ascn # 146947)

The chemical input parameters for SCIGROW are tabulated in Table 3.

Table 3.  Physical/Chemical Input Parameters for SCI-GROW.
                                Model Parameter
                                     Value
                                   Comments
Application Rate 
                            Corn: 0.0825 lbs a.i./A
                          Sorghum : 0.1375 lbs a.i./A
Maximum seasonal rate for corn and sorghum use
Aerobic Soil Metabolism t(1/2)
                                   407 days
Combined parent, quizalofop-acid, and bound residues (Ascn # 146697 and MRID 43235603)
Partition coefficient - Koc
                                    90 ml/g
Mean quizalofop-acid Koc (136, 90, 372, 425)

IV.	Results
      
For surface water sources, the estimated drinking water concentrations are presented in Table 4. The values shown have been adjusted with the 0.87 (national-scale default) PCA value because quizalofop-p-ethyl is used on other crops in addition to the corn and sorghum uses considered in this assessment. The outputs of PE5 runs are presented in Appendix B.

Table 4. Estimated drinking water concentrations (EDWC) from surface water sources adjusted with 87% PCA (percent cropped area).
                                    State 
                                  1-in-10 yr
                                 Peak (ug/L)
                                  1-in-10 yr
                              Annual Mean (ug/L)
                                   Overall 
                              Annual Mean (ug/L)
                                     Corn
Illinois
                                     2.051
                                     0.771
                                     0.610
Mississippi
                                     3.526
                                     0.720
                                     0.397
North Carolina
                                     1.523
                                     0.486
                                     0.357
Ohio
                                     2.690
                                     1.093
                                     0.565
Pennsylvania
                                     2.041
                                     0.715
                                     0.488
                                    Sorghum
Kansas
                                     6.509
                                     2.006
                                     1.306

For ground water sources, the highest SCI-GROW estimated drinking water concentration is 1.29 ug/L (sorghum scenario) and is assumed to be representative for both acute and chronic purposes. The SCI-GROW output is also included in Appendix B.

Appendix A  -  Chemical Structures of Parent and Degradates

Table A.  Chemical Names and Structures of Quizalofop-p-ethyl and its Degradates.
Chemical Name
                                   Structure
Quizalofop-p-ethyl

IUPAC name:  ethyl (R)-2-[4-(6-chloroquinoxalin-2-yloxy)phenoxy]propionate

CAS name:  ethyl (2R)-2-[4-[(6-chloro-2-quinoxalinyl)oxy]phenoxy]propanoate
                                       
Quizalofop acid

IUPAC name:  (RS)-2-[4-(6-chloroquinoxalin-2-yloxy)phenoxy]propionic acid

CAS name:  2-[4-[(6-chloro-2-quinoxalinyl)oxy]phenoxy]propanoic acid
                                       
3-OH-quizalofop acid

CAS name:  (R)-2-[4-(6-chloro-3-hydroxyquinoxalin-2-yloxy)phenoxy]propionic acid
                                       
Phenol 1
                                       
Hydroxylated Phenol 1
                                       
Phenol 2
                                       
hydroxy phenol 2

CAS name:  6-chloroquinoxaline-2,3-diol
                                       
Phenol 3
                                       
Phenol 4
                                       

Appendix B  -  PE5 (surface water) and SCI-GROW (ground water) outputs

                                 Surface Water
Corn
Illinois

stored as Quiz.out
Chemical: Quizalofop
PRZM environment: ILCornSTD.txt	modified Tueday, 29 May 2007 at 13:55:34
EXAMS environment: ir298.exv	modified Tueday, 26 August 2008 at 06:14:08
Metfile: w14842.dvf	modified Tueday, 26 August 2008 at 06:15:08
Water segment concentrations (ppb)

Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
1961	1.473	1.444	1.346	1.171	1.108	0.4749
1962	1.91	1.876	1.796	1.67	1.543	0.824
1963	1.499	1.47	1.406	1.26	1.156	0.6985
1964	1.926	1.893	1.753	1.477	1.365	0.76
1965	0.882	0.8666	0.8319	0.7889	0.7643	0.597
1966	1.643	1.613	1.535	1.351	1.256	0.7639
1967	1.338	1.313	1.24	1.087	0.994	0.6387
1968	3.556	3.491	3.29	2.925	2.875	1.407
1969	1.586	1.556	1.484	1.336	1.216	0.8
1970	1.449	1.421	1.323	1.236	1.206	0.6864
1971	1.607	1.577	1.503	1.36	1.242	0.688
1972	1.398	1.372	1.305	1.196	1.1	0.6202
1973	1.139	1.117	1.072	0.9658	0.8747	0.4944
1974	1.986	1.949	1.809	1.67	1.568	0.7574
1975	1.422	1.396	1.352	1.265	1.225	0.6786
1976	1.897	1.86	1.717	1.572	1.443	0.7898
1977	1.499	1.48	1.389	1.195	1.076	0.6294
1978	1.594	1.565	1.452	1.33	1.272	0.7074
1979	1.146	1.124	1.037	0.8771	0.7936	0.4919
1980	4.787	4.689	4.358	3.686	3.287	1.432
1981	1.427	1.401	1.333	1.292	1.2	0.7937
1982	1.894	1.859	1.766	1.618	1.479	0.8195
1983	0.9203	0.903	0.8533	0.7665	0.7062	0.4905
1984	1.754	1.727	1.661	1.518	1.388	0.6672
1985	0.9101	0.8963	0.865	0.7655	0.6992	0.4367
1986	2.399	2.353	2.195	2.04	1.863	0.8927
1987	1.482	1.454	1.343	1.15	1.114	0.6732
1988	0.4989	0.4901	0.4671	0.4205	0.4169	0.3298
1989	0.4327	0.4279	0.4087	0.3722	0.3647	0.2855
1990	1.892	1.855	1.739	1.555	1.461	0.6951

Sorted results
Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
0.032258064516129	4.787	4.689	4.358	3.686	3.287	1.432
0.0645161290322581	3.556	3.491	3.29	2.925	2.875	1.407
0.0967741935483871	2.399	2.353	2.195	2.04	1.863	0.8927
0.129032258064516	1.986	1.949	1.809	1.67	1.568	0.824
0.161290322580645	1.926	1.893	1.796	1.67	1.543	0.8195
0.193548387096774	1.91	1.876	1.766	1.618	1.479	0.8
0.225806451612903	1.897	1.86	1.753	1.572	1.461	0.7937
0.258064516129032	1.894	1.859	1.739	1.555	1.443	0.7898
0.290322580645161	1.892	1.855	1.717	1.518	1.388	0.7639
0.32258064516129	1.754	1.727	1.661	1.477	1.365	0.76
0.354838709677419	1.643	1.613	1.535	1.36	1.272	0.7574
0.387096774193548	1.607	1.577	1.503	1.351	1.256	0.7074
0.419354838709677	1.594	1.565	1.484	1.336	1.242	0.6985
0.451612903225806	1.586	1.556	1.452	1.33	1.225	0.6951
0.483870967741936	1.499	1.48	1.406	1.292	1.216	0.688
0.516129032258065	1.499	1.47	1.389	1.265	1.206	0.6864
0.548387096774194	1.482	1.454	1.352	1.26	1.2	0.6786
0.580645161290323	1.473	1.444	1.346	1.236	1.156	0.6732
0.612903225806452	1.449	1.421	1.343	1.196	1.114	0.6672
0.645161290322581	1.427	1.401	1.333	1.195	1.108	0.6387
0.67741935483871	1.422	1.396	1.323	1.171	1.1	0.6294
0.709677419354839	1.398	1.372	1.305	1.15	1.076	0.6202
0.741935483870968	1.338	1.313	1.24	1.087	0.994	0.597
0.774193548387097	1.146	1.124	1.072	0.9658	0.8747	0.4944
0.806451612903226	1.139	1.117	1.037	0.8771	0.7936	0.4919
0.838709677419355	0.9203	0.903	0.865	0.7889	0.7643	0.4905
0.870967741935484	0.9101	0.8963	0.8533	0.7665	0.7062	0.4749
0.903225806451613	0.882	0.8666	0.8319	0.7655	0.6992	0.4367
0.935483870967742	0.4989	0.4901	0.4671	0.4205	0.4169	0.3298
0.967741935483871	0.4327	0.4279	0.4087	0.3722	0.3647	0.2855

0.1	2.3577	2.3126	2.1564	2.003	1.8335	0.88583
					Average of yearly averages:	0.70078

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:
Output File: Quiz
Metfile:	w14842.dvf
PRZM scenario:	ILCornSTD.txt
EXAMS environment file:	ir298.exv
Chemical Name:	Quizalofop
Description	Variable Name	Value	Units	Comments
Molecular weight	mwt	344.8	g/mol
Henry's Law Const.	henry		atm-m^3/mol
Vapor Pressure	vapr	3e-7	torr
Solubility	sol	0.4	mg/L
Kd	Kd		mg/L
Koc	Koc	256	mg/L
Photolysis half-life	kdp	85.4	days	Half-life
Aerobic Aquatic Metabolism	kbacw	814	days	Halfife
Anaerobic Aquatic Metabolism	kbacs	420	days	Halfife
Aerobic Soil Metabolism	asm	407	days	Halfife
Hydrolysis:	pH 7	0	days	Half-life
Method:	CAM	2	integer	See PRZM manual
Incorporation Depth:	DEPI		cm
Application Rate:	TAPP	.092	kg/ha
Application Efficiency:	APPEFF	.99	fraction
Spray Drift	DRFT	.064	fraction of application rate applied to pond
Application Date	Date	15-05	dd/mm or dd/mmm or dd-mm or dd-mmm
Record 17:	FILTRA	
	IPSCND	1
	UPTKF	
Record 18:	PLVKRT	
	PLDKRT	
	FEXTRC	0.5
Flag for Index Res. Run	IR	Reservoir
Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of entire run)

Mississippi

stored as Quiz.out
Chemical: Quizalofop
PRZM environment: MScornSTD.txt	modified Tueday, 29 May 2007 at 13:57:40
EXAMS environment: ir298.exv	modified Tueday, 26 August 2008 at 06:14:08
Metfile: w03940.dvf	modified Tueday, 26 August 2008 at 06:14:14
Water segment concentrations (ppb)

Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
1961	1.475	1.42	1.216	0.9728	0.8375	0.2852
1962	1.196	1.151	1.034	0.8091	0.6733	0.2374
1963	1.743	1.678	1.438	1.136	0.9668	0.3944
1964	4.065	3.91	3.343	2.508	2.074	0.6933
1965	0.2542	0.2453	0.212	0.1777	0.1683	0.0991
1966	2.605	2.535	2.261	1.791	1.554	0.5271
1967	4.698	4.548	4.054	3.161	2.618	0.8693
1968	2.095	2.039	1.811	1.497	1.245	0.4363
1969	0.3745	0.3609	0.3105	0.2827	0.287	0.1396
1970	1.516	1.459	1.25	1.004	0.8416	0.2957
1971	3.072	2.958	2.596	2.049	1.709	0.5704
1972	2.075	2.017	1.938	1.495	1.231	0.4223
1973	1.313	1.264	1.11	0.8825	0.7497	0.2626
1974	1.101	1.06	0.9077	0.6656	0.5798	0.2243
1975	3.221	3.106	2.757	2.136	1.751	0.5731
1976	2.363	2.275	2.05	1.647	1.373	0.484
1977	0.9877	0.9557	0.8536	0.7211	0.6873	0.2804
1978	2.232	2.149	2.031	1.547	1.275	0.4352
1979	3.808	3.672	3.39	2.798	2.401	0.8297
1980	3.598	3.468	3.205	2.756	2.3	0.786
1981	2.304	2.217	2.029	1.558	1.283	0.4506
1982	1.871	1.801	1.563	1.191	1.029	0.4279
1983	5.582	5.408	4.677	3.545	2.908	0.9571
1984	2.033	1.957	1.716	1.355	1.132	0.4132
1985	0.4445	0.4284	0.3784	0.3463	0.3163	0.1589
1986	2.477	2.384	2.127	1.631	1.355	0.4528
1987	1.418	1.365	1.201	0.9942	0.8794	0.3233
1988	0.8136	0.7833	0.6858	0.5568	0.5303	0.2286
1989	3.946	3.827	3.573	2.907	2.407	0.807
1990	3.129	3.014	2.628	2.153	1.825	0.6357

Sorted results
Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
0.032258064516129	5.582	5.408	4.677	3.545	2.908	0.9571
0.0645161290322581	4.698	4.548	4.054	3.161	2.618	0.8693
0.0967741935483871	4.065	3.91	3.573	2.907	2.407	0.8297
0.129032258064516	3.946	3.827	3.39	2.798	2.401	0.807
0.161290322580645	3.808	3.672	3.343	2.756	2.3	0.786
0.193548387096774	3.598	3.468	3.205	2.508	2.074	0.6933
0.225806451612903	3.221	3.106	2.757	2.153	1.825	0.6357
0.258064516129032	3.129	3.014	2.628	2.136	1.751	0.5731
0.290322580645161	3.072	2.958	2.596	2.049	1.709	0.5704
0.32258064516129	2.605	2.535	2.261	1.791	1.554	0.5271
0.354838709677419	2.477	2.384	2.127	1.647	1.373	0.484
0.387096774193548	2.363	2.275	2.05	1.631	1.355	0.4528
0.419354838709677	2.304	2.217	2.031	1.558	1.283	0.4506
0.451612903225806	2.232	2.149	2.029	1.547	1.275	0.4363
0.483870967741936	2.095	2.039	1.938	1.497	1.245	0.4352
0.516129032258065	2.075	2.017	1.811	1.495	1.231	0.4279
0.548387096774194	2.033	1.957	1.716	1.355	1.132	0.4223
0.580645161290323	1.871	1.801	1.563	1.191	1.029	0.4132
0.612903225806452	1.743	1.678	1.438	1.136	0.9668	0.3944
0.645161290322581	1.516	1.459	1.25	1.004	0.8794	0.3233
0.67741935483871	1.475	1.42	1.216	0.9942	0.8416	0.2957
0.709677419354839	1.418	1.365	1.201	0.9728	0.8375	0.2852
0.741935483870968	1.313	1.264	1.11	0.8825	0.7497	0.2804
0.774193548387097	1.196	1.151	1.034	0.8091	0.6873	0.2626
0.806451612903226	1.101	1.06	0.9077	0.7211	0.6733	0.2374
0.838709677419355	0.9877	0.9557	0.8536	0.6656	0.5798	0.2286
0.870967741935484	0.8136	0.7833	0.6858	0.5568	0.5303	0.2243
0.903225806451613	0.4445	0.4284	0.3784	0.3463	0.3163	0.1589
0.935483870967742	0.3745	0.3609	0.3105	0.2827	0.287	0.1396
0.967741935483871	0.2542	0.2453	0.212	0.1777	0.1683	0.0991

0.1	4.0531	3.9017	3.5547	2.8961	2.4064	0.82743
					Average of yearly averages:	0.456683333333333

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:
Output File: Quiz
Metfile:	w03940.dvf
PRZM scenario:	MScornSTD.txt
EXAMS environment file:	ir298.exv
Chemical Name:	Quizalofop
Description	Variable Name	Value	Units	Comments
Molecular weight	mwt	344.8	g/mol
Henry's Law Const.	henry		atm-m^3/mol
Vapor Pressure	vapr	3e-7	torr
Solubility	sol	0.4	mg/L
Kd	Kd		mg/L
Koc	Koc	256	mg/L
Photolysis half-life	kdp	85.4	days	Half-life
Aerobic Aquatic Metabolism	kbacw	814	days	Halfife
Anaerobic Aquatic Metabolism	kbacs	420	days	Halfife
Aerobic Soil Metabolism	asm	407	days	Halfife
Hydrolysis:	pH 7	0	days	Half-life
Method:	CAM	2	integer	See PRZM manual
Incorporation Depth:	DEPI		cm
Application Rate:	TAPP	.092	kg/ha
Application Efficiency:	APPEFF	.99	fraction
Spray Drift	DRFT	.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	1
	UPTKF	
Record 18:	PLVKRT	
	PLDKRT	
	FEXTRC	0.5
Flag for Index Res. Run	IR	Reservoir
Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of entire run)

North Carolina

stored as Quiz.out
Chemical: Quizalofop
PRZM environment: NCcornESTD.txt	modified Tueday, 29 May 2007 at 13:58:28
EXAMS environment: ir298.exv	modified Tueday, 26 August 2008 at 06:14:08
Metfile: w13722.dvf	modified Tueday, 26 August 2008 at 06:14:28
Water segment concentrations (ppb)

Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
1961	0.94	0.921	0.853	0.7439	0.6786	0.2907
1962	0.7011	0.6877	0.6589	0.5835	0.5296	0.2852
1963	1.277	1.253	1.157	1.017	0.9112	0.4273
1964	0.5814	0.5705	0.5278	0.504	0.4624	0.2817
1965	1.785	1.749	1.658	1.419	1.268	0.5783
1966	1.083	1.063	0.9834	0.8805	0.8128	0.4566
1967	0.9625	0.9443	0.8834	0.7626	0.7307	0.3915
1968	0.5957	0.5846	0.5458	0.4811	0.4369	0.2541
1969	0.9684	0.9497	0.8836	0.8022	0.7355	0.3516
1970	0.7295	0.7155	0.6848	0.6001	0.5825	0.327
1971	1.326	1.3	1.208	1.102	1.002	0.4714
1972	2.233	2.191	2.05	1.876	1.723	0.8028
1973	0.6932	0.6811	0.6468	0.6157	0.5748	0.3743
1974	1.346	1.32	1.249	1.083	0.9809	0.4647
1975	0.7256	0.7119	0.6675	0.5762	0.5223	0.2983
1976	0.9499	0.9314	0.9021	0.802	0.7183	0.3462
1977	0.8238	0.8099	0.7485	0.6336	0.5718	0.3071
1978	1.09	1.069	1.024	0.9021	0.8205	0.3923
1979	0.7238	0.7106	0.6787	0.6326	0.5867	0.3081
1980	1.408	1.381	1.274	1.077	1.013	0.5049
1981	0.9542	0.9365	0.8869	0.7907	0.7273	0.4054
1982	0.809	0.7938	0.7606	0.6681	0.6031	0.3182
1983	0.9009	0.8835	0.8327	0.7174	0.6404	0.3183
1984	1.754	1.723	1.586	1.351	1.204	0.5476
1985	1.355	1.33	1.267	1.17	1.079	0.5476
1986	1.589	1.559	1.439	1.246	1.135	0.556
1987	0.7524	0.7382	0.6824	0.5806	0.5397	0.3476
1988	0.699	0.6857	0.6338	0.5621	0.5085	0.2748
1989	1.715	1.681	1.581	1.39	1.251	0.5584
1990	1.404	1.377	1.298	1.176	1.058	0.5163

Sorted results
Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
0.032258064516129	2.233	2.191	2.05	1.876	1.723	0.8028
0.0645161290322581	1.785	1.749	1.658	1.419	1.268	0.5783
0.0967741935483871	1.754	1.723	1.586	1.39	1.251	0.5584
0.129032258064516	1.715	1.681	1.581	1.351	1.204	0.556
0.161290322580645	1.589	1.559	1.439	1.246	1.135	0.5476
0.193548387096774	1.408	1.381	1.298	1.176	1.079	0.5476
0.225806451612903	1.404	1.377	1.274	1.17	1.058	0.5163
0.258064516129032	1.355	1.33	1.267	1.102	1.013	0.5049
0.290322580645161	1.346	1.32	1.249	1.083	1.002	0.4714
0.32258064516129	1.326	1.3	1.208	1.077	0.9809	0.4647
0.354838709677419	1.277	1.253	1.157	1.017	0.9112	0.4566
0.387096774193548	1.09	1.069	1.024	0.9021	0.8205	0.4273
0.419354838709677	1.083	1.063	0.9834	0.8805	0.8128	0.4054
0.451612903225806	0.9684	0.9497	0.9021	0.8022	0.7355	0.3923
0.483870967741936	0.9625	0.9443	0.8869	0.802	0.7307	0.3915
0.516129032258065	0.9542	0.9365	0.8836	0.7907	0.7273	0.3743
0.548387096774194	0.9499	0.9314	0.8834	0.7626	0.7183	0.3516
0.580645161290323	0.94	0.921	0.853	0.7439	0.6786	0.3476
0.612903225806452	0.9009	0.8835	0.8327	0.7174	0.6404	0.3462
0.645161290322581	0.8238	0.8099	0.7606	0.6681	0.6031	0.327
0.67741935483871	0.809	0.7938	0.7485	0.6336	0.5867	0.3183
0.709677419354839	0.7524	0.7382	0.6848	0.6326	0.5825	0.3182
0.741935483870968	0.7295	0.7155	0.6824	0.6157	0.5748	0.3081
0.774193548387097	0.7256	0.7119	0.6787	0.6001	0.5718	0.3071
0.806451612903226	0.7238	0.7106	0.6675	0.5835	0.5397	0.2983
0.838709677419355	0.7011	0.6877	0.6589	0.5806	0.5296	0.2907
0.870967741935484	0.699	0.6857	0.6468	0.5762	0.5223	0.2852
0.903225806451613	0.6932	0.6811	0.6338	0.5621	0.5085	0.2817
0.935483870967742	0.5957	0.5846	0.5458	0.504	0.4624	0.2748
0.967741935483871	0.5814	0.5705	0.5278	0.4811	0.4369	0.2541

0.1	1.7501	1.7188	1.5855	1.3861	1.2463	0.55816
					Average of yearly averages:	0.410143333333333

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:
Output File: Quiz
Metfile:	w13722.dvf
PRZM scenario:	NCcornESTD.txt
EXAMS environment file:	ir298.exv
Chemical Name:	Quizalofop
Description	Variable Name	Value	Units	Comments
Molecular weight	mwt	344.8	g/mol
Henry's Law Const.	henry		atm-m^3/mol
Vapor Pressure	vapr	3e-7	torr
Solubility	sol	0.4	mg/L
Kd	Kd		mg/L
Koc	Koc	256	mg/L
Photolysis half-life	kdp	85.4	days	Half-life
Aerobic Aquatic Metabolism	kbacw	814	days	Halfife
Anaerobic Aquatic Metabolism	kbacs	420	days	Halfife
Aerobic Soil Metabolism	asm	407	days	Halfife
Hydrolysis:	pH 7	0	days	Half-life
Method:	CAM	2	integer	See PRZM manual
Incorporation Depth:	DEPI		cm
Application Rate:	TAPP	.092	kg/ha
Application Efficiency:	APPEFF	.99	fraction
Spray Drift	DRFT	.064	fraction of application rate applied to pond
Application Date	Date	29-04	dd/mm or dd/mmm or dd-mm or dd-mmm
Record 17:	FILTRA	
	IPSCND	1
	UPTKF	
Record 18:	PLVKRT	
	PLDKRT	
	FEXTRC	0.5
Flag for Index Res. Run	IR	Reservoir
Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of entire run)

Ohio

stored as Quiz.out
Chemical: Quizalofop
PRZM environment: OHCornSTD.txt	modified Tueday, 29 May 2007 at 13:59:54
EXAMS environment: ir298.exv	modified Tueday, 26 August 2008 at 06:14:08
Metfile: w93815.dvf	modified Tueday, 26 August 2008 at 06:16:20
Water segment concentrations (ppb)

Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
1961	1.619	1.588	1.468	1.292	1.196	0.5063
1962	1.688	1.657	1.537	1.4	1.32	0.6977
1963	1.329	1.316	1.232	1.152	1.07	0.597
1964	0.5927	0.5827	0.5432	0.4895	0.4481	0.3111
1965	0.921	0.9042	0.8373	0.7246	0.6579	0.3376
1966	0.4584	0.4507	0.4203	0.3892	0.3898	0.2458
1967	1.696	1.668	1.556	1.408	1.362	0.6782
1968	3.682	3.627	3.426	2.998	2.7	1.271
1969	2.666	2.62	2.442	2.238	2.07	1.128
1970	1.078	1.061	1.008	0.9239	0.8581	0.5644
1971	0.8054	0.791	0.7416	0.6941	0.6426	0.3677
1972	1.134	1.122	1.051	0.9029	0.8237	0.4362
1973	0.8434	0.831	0.8061	0.7328	0.6704	0.3738
1974	2.596	2.551	2.388	2.289	2.166	1.027
1975	0.946	0.9353	0.8787	0.7874	0.7536	0.5463
1976	0.8604	0.8458	0.8114	0.7588	0.7027	0.3936
1977	0.5858	0.5781	0.5487	0.4961	0.484	0.3049
1978	1.092	1.072	1.032	0.9263	0.8497	0.4442
1979	0.995	0.9772	0.9076	0.8415	0.7754	0.4284
1980	2.717	2.669	2.479	2.237	2.054	0.9482
1981	3.043	2.986	2.853	2.482	2.234	1.122
1982	1.791	1.762	1.652	1.467	1.335	0.7864
1983	1.418	1.393	1.3	1.163	1.068	0.5826
1984	1.735	1.709	1.603	1.396	1.268	0.6539
1985	0.5392	0.5309	0.4979	0.462	0.4359	0.3101
1986	0.8866	0.8704	0.8265	0.7769	0.7084	0.3512
1987	0.8198	0.8092	0.755	0.6782	0.6411	0.3569
1988	0.8263	0.812	0.7869	0.7181	0.6666	0.3838
1989	6.147	6.037	5.659	4.934	4.438	1.93
1990	3.098	3.057	2.909	2.574	2.374	1.401

Sorted results
Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
0.032258064516129	6.147	6.037	5.659	4.934	4.438	1.93
0.0645161290322581	3.682	3.627	3.426	2.998	2.7	1.401
0.0967741935483871	3.098	3.057	2.909	2.574	2.374	1.271
0.129032258064516	3.043	2.986	2.853	2.482	2.234	1.128
0.161290322580645	2.717	2.669	2.479	2.289	2.166	1.122
0.193548387096774	2.666	2.62	2.442	2.238	2.07	1.027
0.225806451612903	2.596	2.551	2.388	2.237	2.054	0.9482
0.258064516129032	1.791	1.762	1.652	1.467	1.362	0.7864
0.290322580645161	1.735	1.709	1.603	1.408	1.335	0.6977
0.32258064516129	1.696	1.668	1.556	1.4	1.32	0.6782
0.354838709677419	1.688	1.657	1.537	1.396	1.268	0.6539
0.387096774193548	1.619	1.588	1.468	1.292	1.196	0.597
0.419354838709677	1.418	1.393	1.3	1.163	1.07	0.5826
0.451612903225806	1.329	1.316	1.232	1.152	1.068	0.5644
0.483870967741936	1.134	1.122	1.051	0.9263	0.8581	0.5463
0.516129032258065	1.092	1.072	1.032	0.9239	0.8497	0.5063
0.548387096774194	1.078	1.061	1.008	0.9029	0.8237	0.4442
0.580645161290323	0.995	0.9772	0.9076	0.8415	0.7754	0.4362
0.612903225806452	0.946	0.9353	0.8787	0.7874	0.7536	0.4284
0.645161290322581	0.921	0.9042	0.8373	0.7769	0.7084	0.3936
0.67741935483871	0.8866	0.8704	0.8265	0.7588	0.7027	0.3838
0.709677419354839	0.8604	0.8458	0.8114	0.7328	0.6704	0.3738
0.741935483870968	0.8434	0.831	0.8061	0.7246	0.6666	0.3677
0.774193548387097	0.8263	0.812	0.7869	0.7181	0.6579	0.3569
0.806451612903226	0.8198	0.8092	0.755	0.6941	0.6426	0.3512
0.838709677419355	0.8054	0.791	0.7416	0.6782	0.6411	0.3376
0.870967741935484	0.5927	0.5827	0.5487	0.4961	0.484	0.3111
0.903225806451613	0.5858	0.5781	0.5432	0.4895	0.4481	0.3101
0.935483870967742	0.5392	0.5309	0.4979	0.462	0.4359	0.3049
0.967741935483871	0.4584	0.4507	0.4203	0.3892	0.3898	0.2458

0.1	3.0925	3.0499	2.9034	2.5648	2.36	1.2567
					Average of yearly averages:	0.64951

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:
Output File: Quiz
Metfile:	w93815.dvf
PRZM scenario:	OHCornSTD.txt
EXAMS environment file:	ir298.exv
Chemical Name:	Quizalofop
Description	Variable Name	Value	Units	Comments
Molecular weight	mwt	344.8	g/mol
Henry's Law Const.	henry		atm-m^3/mol
Vapor Pressure	vapr	3e-7	torr
Solubility	sol	0.4	mg/L
Kd	Kd		mg/L
Koc	Koc	256	mg/L
Photolysis half-life	kdp	85.4	days	Half-life
Aerobic Aquatic Metabolism	kbacw	814	days	Halfife
Anaerobic Aquatic Metabolism	kbacs	420	days	Halfife
Aerobic Soil Metabolism	asm	407	days	Halfife
Hydrolysis:	pH 7	0	days	Half-life
Method:	CAM	2	integer	See PRZM manual
Incorporation Depth:	DEPI		cm
Application Rate:	TAPP	.092	kg/ha
Application Efficiency:	APPEFF	.99	fraction
Spray Drift	DRFT	.064	fraction of application rate applied to pond
Application Date	Date	15-05	dd/mm or dd/mmm or dd-mm or dd-mmm
Record 17:	FILTRA	
	IPSCND	1
	UPTKF	
Record 18:	PLVKRT	
	PLDKRT	
	FEXTRC	0.5
Flag for Index Res. Run	IR	Reservoir
Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of entire run)

Pennsylvania

stored as Quiz.out
Chemical: Quizalofop
PRZM environment: PAcornSTD.txt	modified Tueday, 29 May 2007 at 14:01:58
EXAMS environment: ir298.exv	modified Tueday, 26 August 2008 at 06:14:08
Metfile: w14751.dvf	modified Tueday, 26 August 2008 at 06:15:00
Water segment concentrations (ppb)

Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
1961	1.041	1.029	0.9717	0.9353	0.8785	0.3664
1962	0.5865	0.5771	0.5399	0.479	0.4784	0.3853
1963	0.361	0.3551	0.3321	0.3074	0.2956	0.2589
1964	0.8833	0.8682	0.809	0.769	0.7279	0.4636
1965	0.4666	0.4592	0.4316	0.4164	0.4169	0.3309
1966	1.742	1.709	1.619	1.475	1.368	0.5505
1967	1.043	1.028	0.9759	0.9288	0.8765	0.7204
1968	1.725	1.694	1.592	1.374	1.239	0.6906
1969	2.364	2.32	2.152	1.867	1.687	0.8226
1970	0.9261	0.9112	0.8668	0.809	0.7572	0.5812
1971	0.7976	0.7841	0.7309	0.661	0.6053	0.4085
1972	3.238	3.177	2.944	2.502	2.244	1.031
1973	1.488	1.463	1.364	1.192	1.085	0.7363
1974	0.9603	0.9464	0.89	0.8259	0.7994	0.5694
1975	1.193	1.173	1.105	1.012	0.975	0.5889
1976	0.9523	0.9362	0.8726	0.7821	0.757	0.4675
1977	0.3762	0.3704	0.347	0.3081	0.3051	0.2542
1978	1.109	1.09	1.034	0.9303	0.9202	0.4886
1979	0.7356	0.7235	0.6759	0.6272	0.613	0.4068
1980	1.257	1.236	1.151	1.003	0.9154	0.51
1981	0.5943	0.5849	0.5623	0.5171	0.4968	0.3797
1982	2.75	2.702	2.642	2.366	2.154	0.9791
1983	1.117	1.099	1.032	0.9018	0.8191	0.5669
1984	1.461	1.436	1.393	1.294	1.197	0.6195
1985	1.675	1.648	1.568	1.407	1.312	0.7169
1986	1.066	1.051	1.002	0.879	0.822	0.5264
1987	0.9247	0.9096	0.8482	0.7395	0.6908	0.4801
1988	0.7558	0.7435	0.7052	0.6211	0.6056	0.3974
1989	2.185	2.147	2.04	1.847	1.698	0.8164
1990	1.651	1.623	1.51	1.336	1.238	0.7197

Sorted results
Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
0.032258064516129	3.238	3.177	2.944	2.502	2.244	1.031
0.0645161290322581	2.75	2.702	2.642	2.366	2.154	0.9791
0.0967741935483871	2.364	2.32	2.152	1.867	1.698	0.8226
0.129032258064516	2.185	2.147	2.04	1.847	1.687	0.8164
0.161290322580645	1.742	1.709	1.619	1.475	1.368	0.7363
0.193548387096774	1.725	1.694	1.592	1.407	1.312	0.7204
0.225806451612903	1.675	1.648	1.568	1.374	1.239	0.7197
0.258064516129032	1.651	1.623	1.51	1.336	1.238	0.7169
0.290322580645161	1.488	1.463	1.393	1.294	1.197	0.6906
0.32258064516129	1.461	1.436	1.364	1.192	1.085	0.6195
0.354838709677419	1.257	1.236	1.151	1.012	0.975	0.5889
0.387096774193548	1.193	1.173	1.105	1.003	0.9202	0.5812
0.419354838709677	1.117	1.099	1.034	0.9353	0.9154	0.5694
0.451612903225806	1.109	1.09	1.032	0.9303	0.8785	0.5669
0.483870967741936	1.066	1.051	1.002	0.9288	0.8765	0.5505
0.516129032258065	1.043	1.029	0.9759	0.9018	0.822	0.5264
0.548387096774194	1.041	1.028	0.9717	0.879	0.8191	0.51
0.580645161290323	0.9603	0.9464	0.89	0.8259	0.7994	0.4886
0.612903225806452	0.9523	0.9362	0.8726	0.809	0.7572	0.4801
0.645161290322581	0.9261	0.9112	0.8668	0.7821	0.757	0.4675
0.67741935483871	0.9247	0.9096	0.8482	0.769	0.7279	0.4636
0.709677419354839	0.8833	0.8682	0.809	0.7395	0.6908	0.4085
0.741935483870968	0.7976	0.7841	0.7309	0.661	0.613	0.4068
0.774193548387097	0.7558	0.7435	0.7052	0.6272	0.6056	0.3974
0.806451612903226	0.7356	0.7235	0.6759	0.6211	0.6053	0.3853
0.838709677419355	0.5943	0.5849	0.5623	0.5171	0.4968	0.3797
0.870967741935484	0.5865	0.5771	0.5399	0.479	0.4784	0.3664
0.903225806451613	0.4666	0.4592	0.4316	0.4164	0.4169	0.3309
0.935483870967742	0.3762	0.3704	0.347	0.3081	0.3051	0.2589
0.967741935483871	0.361	0.3551	0.3321	0.3074	0.2956	0.2542

0.1	2.3461	2.3027	2.1408	1.865	1.6969	0.82198
					Average of yearly averages:	0.561123333333333

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:
Output File: Quiz
Metfile:	w14751.dvf
PRZM scenario:	PAcornSTD.txt
EXAMS environment file:	ir298.exv
Chemical Name:	Quizalofop
Description	Variable Name	Value	Units	Comments
Molecular weight	mwt	344.8	g/mol
Henry's Law Const.	henry		atm-m^3/mol
Vapor Pressure	vapr	3e-7	torr
Solubility	sol	0.4	mg/L
Kd	Kd		mg/L
Koc	Koc	256	mg/L
Photolysis half-life	kdp	85.4	days	Half-life
Aerobic Aquatic Metabolism	kbacw	814	days	Halfife
Anaerobic Aquatic Metabolism	kbacs	420	days	Halfife
Aerobic Soil Metabolism	asm	407	days	Halfife
Hydrolysis:	pH 7	0	days	Half-life
Method:	CAM	2	integer	See PRZM manual
Incorporation Depth:	DEPI		cm
Application Rate:	TAPP	.092	kg/ha
Application Efficiency:	APPEFF	.99	fraction
Spray Drift	DRFT	.064	fraction of application rate applied to pond
Application Date	Date	30-04	dd/mm or dd/mmm or dd-mm or dd-mmm
Record 17:	FILTRA	
	IPSCND	1
	UPTKF	
Record 18:	PLVKRT	
	PLDKRT	
	FEXTRC	0.5
Flag for Index Res. Run	IR	Reservoir
Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of entire run)

Sorghum
Kansas

stored as Quiz.out
Chemical: Quizalofop
PRZM environment: KSsorghumSTD.txt	modified Tueday, 29 May 2007 at 13:55:46
EXAMS environment: ir298.exv	modified Tueday, 26 August 2008 at 06:14:08
Metfile: w13996.dvf	modified Tueday, 26 August 2008 at 06:14:52
Water segment concentrations (ppb)

Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
1961	2.839	2.786	2.596	2.45	2.318	0.6943
1962	7.61	7.458	6.916	6.068	5.457	2.245
1963	2.84	2.806	2.671	2.402	2.224	1.304
1964	8.935	8.76	8.089	6.986	6.389	2.377
1965	3.966	3.916	3.718	3.326	3.059	2.267
1966	2.333	2.291	2.124	1.819	1.634	1.129
1967	3.584	3.517	3.323	2.898	2.687	1.233
1968	3.143	3.085	2.951	2.573	2.368	1.32
1969	1.764	1.742	1.654	1.469	1.339	1.031
1970	3.689	3.638	3.391	2.927	2.625	1.128
1971	4.054	3.978	3.68	3.178	2.437	1.233
1972	4.35	4.268	3.946	3.429	3.161	1.829
1973	8.952	8.802	8.31	7.264	6.553	2.491
1974	4.319	4.263	4.04	3.58	3.268	2.304
1975	2.505	2.46	2.3	2.054	1.95	1.213
1976	1.626	1.604	1.519	1.344	1.226	0.8279
1977	5.735	5.62	5.325	4.659	4.214	1.589
1978	6.33	6.211	5.813	4.992	4.533	2.14
1979	5.216	5.121	4.769	4.248	4.024	2.306
1980	4.831	4.743	4.481	3.917	3.416	1.901
1981	2.847	2.81	2.659	2.415	2.285	1.703
1982	1.774	1.752	1.663	1.497	1.38	1.021
1983	2.327	2.284	2.144	1.9	1.689	0.897
1984	2.472	2.426	2.243	2.13	1.963	1.059
1985	3.125	3.082	3.024	2.743	2.491	1.227
1986	3.149	3.093	2.935	2.64	2.453	1.296
1987	3.245	3.183	2.996	2.627	2.408	1.325
1988	1.327	1.311	1.249	1.127	1.041	0.6666
1989	4.72	4.636	4.321	3.838	3.485	1.401
1990	4.721	4.631	4.301	3.809	3.647	1.892

Sorted results
Prob.	Peak	96 hr	21 Day	60 Day	90 Day	Yearly
0.032258064516129	8.952	8.802	8.31	7.264	6.553	2.491
0.0645161290322581	8.935	8.76	8.089	6.986	6.389	2.377
0.0967741935483871	7.61	7.458	6.916	6.068	5.457	2.306
0.129032258064516	6.33	6.211	5.813	4.992	4.533	2.304
0.161290322580645	5.735	5.62	5.325	4.659	4.214	2.267
0.193548387096774	5.216	5.121	4.769	4.248	4.024	2.245
0.225806451612903	4.831	4.743	4.481	3.917	3.647	2.14
0.258064516129032	4.721	4.636	4.321	3.838	3.485	1.901
0.290322580645161	4.72	4.631	4.301	3.809	3.416	1.892
0.32258064516129	4.35	4.268	4.04	3.58	3.268	1.829
0.354838709677419	4.319	4.263	3.946	3.429	3.161	1.703
0.387096774193548	4.054	3.978	3.718	3.326	3.059	1.589
0.419354838709677	3.966	3.916	3.68	3.178	2.687	1.401
0.451612903225806	3.689	3.638	3.391	2.927	2.625	1.325
0.483870967741936	3.584	3.517	3.323	2.898	2.491	1.32
0.516129032258065	3.245	3.183	3.024	2.743	2.453	1.304
0.548387096774194	3.149	3.093	2.996	2.64	2.437	1.296
0.580645161290323	3.143	3.085	2.951	2.627	2.408	1.233
0.612903225806452	3.125	3.082	2.935	2.573	2.368	1.233
0.645161290322581	2.847	2.81	2.671	2.45	2.318	1.227
0.67741935483871	2.84	2.806	2.659	2.415	2.285	1.213
0.709677419354839	2.839	2.786	2.596	2.402	2.224	1.129
0.741935483870968	2.505	2.46	2.3	2.13	1.963	1.128
0.774193548387097	2.472	2.426	2.243	2.054	1.95	1.059
0.806451612903226	2.333	2.291	2.144	1.9	1.689	1.031
0.838709677419355	2.327	2.284	2.124	1.819	1.634	1.021
0.870967741935484	1.774	1.752	1.663	1.497	1.38	0.897
0.903225806451613	1.764	1.742	1.654	1.469	1.339	0.8279
0.935483870967742	1.626	1.604	1.519	1.344	1.226	0.6943
0.967741935483871	1.327	1.311	1.249	1.127	1.041	0.6666

0.1	7.482	7.3333	6.8057	5.9604	5.3646	2.3058
					Average of yearly averages:	1.50166

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:
Output File: Quiz
Metfile:	w13996.dvf
PRZM scenario:	KSsorghumSTD.txt
EXAMS environment file:	ir298.exv
Chemical Name:	Quizalofop
Description	Variable Name	Value	Units	Comments
Molecular weight	mwt	344.8	g/mol
Henry's Law Const.	henry		atm-m^3/mol
Vapor Pressure	vapr	3e-7	torr
Solubility	sol	0.4	mg/L
Kd	Kd		mg/L
Koc	Koc	256	mg/L
Photolysis half-life	kdp	85.4	days	Half-life
Aerobic Aquatic Metabolism	kbacw	814	days	Halfife
Anaerobic Aquatic Metabolism	kbacs	420	days	Halfife
Aerobic Soil Metabolism	asm	407	days	Halfife
Hydrolysis:	pH 7	0	days	Half-life
Method:	CAM	2	integer	See PRZM manual
Incorporation Depth:	DEPI		cm
Application Rate:	TAPP	.154	kg/ha
Application Efficiency:	APPEFF	.95	fraction
Spray Drift	DRFT	.05	fraction of application rate applied to pond
Application Date	Date	15-08	dd/mm or dd/mmm or dd-mm or dd-mmm
Record 17:	FILTRA	
	IPSCND	1
	UPTKF	
Record 18:	PLVKRT	
	PLDKRT	
	FEXTRC	0.5
Flag for Index Res. Run	IR	Reservoir
Flag for runoff calc.	RUNOFF	total	none, monthly or total(average of entire run)

                                 Ground Water

                           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:Quizalofop-p-ethyl
 time is  7/19/2011  11:28: 6
 ------------------------------------------------------------------------
  Application      Number of       Total Use    Koc      Soil Aerobic
  rate (lb/acre)  applications   (lb/acre/yr)  (ml/g)   metabolism (days)
 ------------------------------------------------------------------------
      0.138           1.0           0.138      9.00E+01      407.0
 ------------------------------------------------------------------------
 groundwater screening cond (ppb) =   1.29E+00 
 ************************************************************************
