Document ID: EPA-HQ-OPP-2008-0271-0010
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2009-07-14T04:00Z

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

WASHINGTON D.C., 20460

                                                                        
                                                       OFFICE  OF 

PREVENTION, PESTICIDES AND 

                                                                        
                                     TOXIC SUBSTANCES

Date: 		January 7, 2009

Chemical: 	067710 

DP Barcode: 	360115  

Subject:	EFED drinking water exposure assessment to support higher turf
use rate 

		based on Provaunt™ and Advion™ labels 

To: 		Susan Stanton

Insecticides Branch

Reregistration Division (7508P)

From: 		James Lin, Environmental Engineer

Nancy Andrews, Branch Chief

Environmental Risk Branch I

Environmental Fate and Effects Division (7507P)

Summary

The estimated surface water drinking water concentrations for DPX-MP062
(Indoxacarb) are: 

25.1 ug /L for the 1 in 10 year annual peak concentration (acute)  

 5.4 ug /L for the 1 in 10 year annual mean concentration (non-cancer
chronic) and  

  2.8 ug /L for the 30 year annual mean concentration (cancer chronic). 
 

These values are based on cotton uses which have been assessed
previously.  The turf uses evaluated in this memo do not provide higher
drinking water concentrations.

Previous Drinking Water Assessment

EFED has issued a revised drinking water assessment for indoxacarb to
support the Section 3 and Section 18 uses (dated: 02/01/2007, DP# 293793
and 335124).  The resulting drinking water concentration estimations are
based on the cotton use due to its high total application rate of 0.44
lb ai/ac and the most vulnerable modeling scenario which is prone to
runoff and erosion.

Turf Label Information 

There are three labels being evaluated for this drinking water exposure
assessment.  

Dupont™ Provaunt™ 1.25 SC insecticide (Reg. No. 352-637) - A
suspension concentrate that may be used at up to 0.22 lb a.i./A with
repeat applications allowed after 7 days with a seasonal limit of 0.44
lb a.i./A.

Dupont™ Provaunt™ Insecticide (Reg. No. 352-716) – A water
dispersible granular that can be applied at up to 0.225 lb a.i./A with
repeat applications allowed after 7 days with a seasonal limit of 0.45
lb a.i./A.

Dupont™ Advion™ Mole Cricket Bait (Reg. No. 352-651) – A granular
bait can be applied at up to 0.44 lb a.i./A with an annual limit of 0.44
lb a.i./A.

Environmental Fate Summary

The proposed Dupont Avaunt® insecticide contains 30% of active
ingredient of
(S)-methyl-7-chloro-2,5-dihydro-2-[(methoxycarbonyl)[4-(trifluoromethoxy
) phenyl] amino] carbonyl] indeno [1,2-e] [1,3,4]
oxadiazine-4a(3aH)-carboxylate (Indoxacarb).  The insecticide is
formulated as a water dispersible granule formulation.  Most of the
environmental fate studies were carried out with the either one of two
older formulations:  DPX-JW062 with a 50:50 (S : R) racemic mixture and
DPX-MP062 with a 75:25 (S; R) racemic mixture. 

The major routes of degradation for DPX-JW062 are alkaline-catalyzed
hydrolysis, photodegradation in water, and microbial mediated
degradation.  DPX-JW062 had abiotic hydrolysis half-lives of 519 days in
pH 5 buffer solution, 36 days in pH 7 buffer solution, and 1 day in pH 9
buffer solution (MRID 44477301).  The major hydrolysis degradation
product was sodium 7-chloro-2,5-dihydro-2-[[(methoxycarbonyl)
[4-(trifluoromethoxy)phenyl] amino]
indeno[1,2-e][1,3,4]oxadiazine-4a(3H)-carboxylic acid (IN-KT413)(48% of
applied).  Additional abiotic hydrolysis data indicate indanone and
trifluroromethoxyphenyl labeled DPX-MP062 (3S:1 R ratio) had hydrolysis
half-lives of 577.62 days in pH 5 buffer solution, 21.80 days in pH 7
buffer solution, and 1.11 days in pH 9 buffer solution (MRID 45795801). 
The trifluroromethoxyphenyl labeled DPX-MP062 hydrolyzed to form
IN-MF014 (methyl 2-[[[4-(trifluoromethoxy)phenyl] amino]carbonyl]
hydrazine carboxylate) as minor product (6.1% of applied)  in pH 5
buffer solution and a major degradation product (14.7% of applied) in pH
7 buffer solution.  IN-KT413 was identified as a major degradation in pH
7 buffer solution (47% of applied) and pH 9 buffer solution (88% of
applied).  A supplementary hydrolysis study showed the enantiomeric
ratio of the isomers of indoxacarb remained constant during the study.  
 

	

The photodegradation half-life for DPX-JW062 was 3 days in pH 5 buffer
solution 

(MRID 44477302).  Methyl[4-(trifluoro methoxy)phenyl] carbamate
(IN-KB687) and IN-MF014 were major degradates for phenyl labeled
DPX-JW062.  IN-MH304 and MW297 were  major degradates for indanone ring
labeled indoxacarb.  DPX-MP062 had a photodegradation half-life of 3.44 
days (6.88 days under a 12 hour day lengths) under continuous light
conditions in pH 5 buffer solution (MRID 45795802).  In dark controls,
the half-life of DPX-MP062 was estimated at 1.6 years.  Photodegradation
products were identified as IN-MH304 (32% of applied), IN-CO639 (10.2%
of applied) and IN-MA573 (10.6% of applied) for only  indanone labeled
indoxacarb; and  IN-MF014 (37.6 % applied), IN-KB687 (15% of applied)
for only phenyl labeled indoxacarb.   Additionally, numerous
unidentified non-polar and polar degradation products were found for
both  labels of  indoxacarb. A supplementary photodegradation study 
showed the enantiomeric ratio of the isomers of indoxacarb remained
constant during the study.     

The extent of DPX-JW062 photodegradation on soil is questionable because
there was extensive degradation in dark controls with similar
degradation products (MRID 44477303).  The dark control corrected
half-life was 126 days.  The main degradation products were
methyl-7-ch潬潲㈭㔬搭桩摹潲㈭嬭孛ⴴ琨楲汦潵潲敭桴硯
⥹瀠敨祮嵬浡湩嵯挠牡潢祮嵬湩敤潮ㅛ㈬攭孝ⰱⰳ崴漠
楸楤穡湩⁥䤨ⵎ告㌳⤳愠摮䤠ⵎ䉋㠶⸷ऍ

 μg/g, had a first-order, linear half-life of 133.3 days (nonlinear
half-life of 6.24 days) in a Speyer 2.2 loamy sand soil (MRID 45906701).
 Common degradation products from indanone and phenyl labeled indoxacarb
were JT333, IN-KT413, IN-ML438, IN-JU873, IN-KG433 and IN-MP819. 
IN-MK638 was identified as a unique degradation product from the phenyl
labeled indoxacarb.   

DPX-JW062, applied at 10 ppm, degraded with half-lives ranging from 18
to 34 days in near-neutral aerobic aquatic environments (MRID 44477306).
 JT333 was a common degradate (>10% of applied, half-life of 54 days
under aerobic soil conditions.) for the racemic and isomerically
(DPX-MP062) enriched formulations.  Additionally, the common degradate
Unknown A was detected (17-25% of applied) in the studies.  Also, a high
percentage of radiolabeled residues (38%) were nonextractable from
sediment.  DP-MP062, applied at 0.484 mg/L, degraded with total system
half-lives of 34.7 and 23.1 days in a  pond water/sediment and lake
water/sediment systems, respectively (MRID 45793301).  Major degradation
products (>10% of applied) were IN-KT413, IN-MP819 and IN-MS775.  Minor
degradation products (<10% of applied) were IN-JT333 and IN-KG433.  In
the lake water/ sediment system, the major degradation products were
IN-JT333 and IN-KT413. Minor degradation products were identified as
IN-KG433,IN-ML438 and IN-MS775.  Three unidentified degradation products
were also found in each water/sediment system.

DPX-JW062 degraded with half-lives of 147 and 231 days in anaerobic
soil-water environments (MRID 44477305).   JT333 and KT413 were detected
as common degradates between the indanone and phenyl labeled studies. 
JT333 was detected in both water and sediment samples.  Additionally, a
high percentage of nonextractable radiolabeled residues were detected
(40-43%) in sediment samples.  DPX-JW062 degraded with total system
half-lives of 192  and 315 days for the indanone and phenyl label
indoxacarb, respectively, in a flooded-silt loam sediment system (MRID
456795804). Major degradation products were INJT333 and IN-KT413. 
Enantiomeric ratios of the R and S isomers remained constant during the
study.

Degradation products of indoxacarb had different half-lives in aerobic
soils.  IN-KT413 and IN-MK638 were non-persistent (t1/2 1.3 to 16.2
days) in foreign and US mineral soils (MRID 45906703, 45795816). 
IN-KG433 and IN-JU873 were non-persistent to moderately persistent (t1/2
10.5 to 58.7 days) in aerobic soils (MRIDs 45795814 and 45795815). In
contrast, IN-MK643 was persistent (141.5 to 346.6 days) in aerobic soils
(MRID 45795817).  Degradation products except for CO2 were not
identified.  However, the degradation pathways were generally associated
with oxidative mineralization to CO2 and residue incorporation into
non-extractable soil organic matter.      

The results of batch equilibrium studies suggest low mobility of
DPX-JW062 and JT333 in terrestrial and aquatic environments.  Reviewer
calculated soil:water partition coefficients for DPX-JW062 are 29 ml/g
in Myaka sand soil, 30 ml/g in Donna sandy clay loam soil, 99 ml/g in
Chino loam soil, and 40 ml/g in a Tama silt loam soil (MRIDs 44477308
and 45795809).  Soil:water partition coefficients for JT333 are 251 ml/g
in Myaka sand soil, 115 ml/g in Donna sandy clay loam soil, 308 ml/g  in
Chino loam soil, and 147 ml/g in a Tama silt loam soil.  There was no
correlation between soil organic matter content and indoxacarb
soil:water partitioning coefficients.  Indoxacarb degradation products
(IN-KT413, IN-KG433, IN-MK638, IN-MK643) had reviewer calculated Kds
ranging from 1.2 to 11.3 ml/g in five US and foreign mineral soils
(MRIDs 45795808, 45906702, 45795807, 45795806).  In contrast, IN-JU873
has reviewer calculated Kds ranging from 52.1 to 406.4 (MRID 45795805). 
With the exception of IN-JU873, the batch equilibrium data suggest
indoxacarb degradation products may exhibit some mobility in soil.  Aged
soil column leaching studies, however, indicate aged residues of
DPX-MP062 have low mobility in packed soil columns (MRID 44477309).

Plant and soil volatility studies indicate that DPX-JW062 has low
volatility from plant and soil surfaces, since after 168 hours of
incubation, <3% of applied radioactivity had volatilized from lettuce
plants and soil surface (MRID 44491703).  

DPX-JW062, at 10 and 100 ug/L, had reviewer calculated fish
bioconcentration factors of 395 to 504X for edible tissues, 1568-2081X
for nonedible tissues, and 1044-1351X for whole fish tissues,
respectively (MRIDs  44477319 and 45805301).   When based on residues of
the active isomer, DPX-KN128, maximum BCFs were 24 in fillet, 153 in
viscera, and 90 in whole fish for the 10 ppb exposure.   The major
degradation product in fish tissues (>10% recovered) was IN-JT333. 
Minor degradation products (<10% recovered) were IN-ML811, IN-KT319,
IN-KG433, and IN-JU873.  The depuration half-life of bioaccumulated
indoxacarb 14C residues ranged from 6.55 to 7.88 days.

DPX-JW062, applied at 0.6 lbs ai/A, had reviewer calculated field
dissipation half-lives ranging from 72 to 79 days on bare sand soil in
Florida and California, respectively (MRIDs  44477312, 44477315 and
44477316).  Radiolabeled DPX-JW062, applied at 0.88 lb a.i./A, had field
dissipation half-lives ranging from 29 to 113 days on bareground soils
in Delaware and Texas studies and 73 to 119 days on bareground soils in
California and Florida studies, respectively (MRIDs 44477311 and
45850002 ).  The degradate IN-JT333 was detected in all field studies. 
The degradate IN-KG433 was only detected in the radiolabeled field
studies.  Some leaching of parent and residues occurred but were not
detected below 45 cm (18 inches).

Surface Water Assessment

To estimate the exposure of drinking water associated with turf uses,
EFED’s aquatic Tier II models, PRZM and EXAMS were implemented.  A
graphical user interface (PE5.pl), developed by the EPA (    HYPERLINK
"(http://www.epa.gov/oppefed1/models/water)" 
http://www.epa.gov/oppefed1/models/water) , was used to facilitate
inputting chemical and use specific parameters into the appropriate PRZM
input files and EXAMS chemical files.  This approach employs PRZM, which
simulates runoff and erosion from an agricultural field on a daily time
step.  The runoff and erosion flux output data from PRZM are used as
chemical loadings to EXAMS, which simulates surface water in order to
predict the Estimated Drinking Water Concentrations (EDWCs).  EDWCs for
drinking water exposure assessment were determined using an Index
Reservoir (IR) scenario which describes a generic scenario for the EXAMS
component of the modeling exercise.

Dupont™ Advion™ Mole Cricket Bait (Reg. No. 352-651) label has the
highest single application rate of  0.44 lb a.i./A.  Therefore, this
rate is used in estimating drinking water concentrations.

Table 1. PRZM/EXAMS Input Parameters for indoxacarb

Parameter	Input Value and Unit	Comment	Source

Method of application	Granular application

Label

CAM	2, foliar applied

Hydrolysis (t1/2)	36 days

MRID 44477301

MRID 45795801

Spray drift and application efficiency	Granular application	Efficiency
– 1.0

No spray drift	Guidance 

Aerobic soil metabolism (t1/2)	156 days 	Rate constant = 0.00444/day

(UB90th% 3,3,6,10,15,30, 693,3,3,7,6),	MRID 44477304

MRID 44477307

MRID 45850001

MRID 45795803

MRID 45906701

Aerobic aquatic metabolism (t1/2)	34 days

MRID 44477306

MRID 45793301

Anaerobic aquatic metabolism (t1/2)	248 days

MRID 45795804

Aquatic photolysis (t1/2)	3 days

MRID 44477302

MRID 45795802

Vapor pressure	1.9 x 10-10 torr @ 25oC

Product Chemistry 

Solubility in water 

(pH 7, 20 °C)	8 mg/L

Henry’s Law constant (20 °C)	6 x 10-10

Molecular weight	527.8

Partition coefficient Kd	25 mL/g 

MRID 44477308

MRID 45795809

Plant Decay Rate

PLDKRT	1.65×10-2 (days-1)

Half-life of 4.2 days

MRID 47331001

PRZM/EXAMS   SEQ CHAPTER \h \r 1 output values for each of the crop
scenarios are provided in the Appendix A.  The final drinking water
estimates were adjusted with a default Percent Cropped Area (PCA) factor
of 0.87.  The estimated drinking water concentration (EDWC) values are
summarized in Table 2.  

Table 2: Default PCA corrected PRZM -EXAMS  Indoxacarb Residue
Concentrations (µg/L)

Scenario	

1 in 10 year peak	

1 in 10 year annual average	

30 year annual average

Turf (FL)	1.563	0.109	0.034

Turf (PA)	1.935	0.168	0.067

APPENDIX  A- PRZM/EXAMS OUTPUT FILES

stored as INDFLTu.out

Chemical: Indoxacarb

PRZM environment: FLturfSTD.txt	modified Tueday, 21 February 2006 at
13:38:26

EXAMS environment: ir298.exv	modified Thuday, 29 August 2002 at 14:34:12

Metfile: w12834.dvf	modified Wedday, 3 July 2002 at 08:04:28

Water segment concentrations (ppb)

Year	Peak	96 hr	21 Day	60 Day	90 Day	Yearly

1961	0.2439	0.2222	0.153	0.08308	0.05961	0.01562

1962	0.3974	0.3613	0.2502	0.1605	0.116	0.03101

1963	0.3161	0.2864	0.2079	0.1541	0.1212	0.03367

1964	1.87	1.715	1.232	0.6615	0.4878	0.1306

1965	0.3661	0.3338	0.2461	0.1448	0.1038	0.02911

1966	0.4395	0.4017	0.2835	0.2471	0.1982	0.05477

1967	0.1728	0.1573	0.1096	0.06385	0.04811	0.01392

1968	1.095	1.014	0.7196	0.3848	0.2769	0.07318

1969	0.3124	0.2856	0.2343	0.1561	0.1124	0.03201

1970	0.002541	0.002503	0.002343	0.001998	0.001749	0.0006361

1971	0.269	0.2446	0.1685	0.08855	0.06397	0.01878

1972	0.3169	0.288	0.1986	0.1041	0.0752	0.02151

1973	0.01202	0.0109	0.008324	0.005153	0.003726	0.001498

1974	0.03769	0.03465	0.0248	0.01356	0.01037	0.002838

1975	0.4003	0.3676	0.2638	0.143	0.1036	0.02761

1976	0.2434	0.2228	0.1642	0.09884	0.07234	0.0195

1977	0.1903	0.1738	0.1196	0.06187	0.05948	0.01962

1978	2.8	2.567	1.824	0.9964	0.7241	0.1916

1979	1.134	1.035	0.726	0.3872	0.2792	0.07558

1980	0.03272	0.02974	0.02032	0.01072	0.007687	0.003162

1981	0.03998	0.03622	0.02735	0.0153	0.01106	0.004486

1982	0.3924	0.3563	0.2454	0.1296	0.09198	0.02498

1983	0.8224	0.7522	0.6065	0.338	0.2407	0.06385

1984	3.44	3.149	2.22	1.188	0.8438	0.2215

1985	0.1352	0.1245	0.09044	0.05021	0.04498	0.01595

1986	0.1696	0.1536	0.1094	0.07013	0.05036	0.0134

1987	0.001604	0.001584	0.001497	0.001288	0.001136	0.0004286

1988	0.003346	0.003037	0.002359	0.001616	0.001186	0.0004193

1989	0.2072	0.1895	0.1327	0.07082	0.05015	0.01387

1990	0.006412	0.005805	0.003967	0.002118	0.001576	0.000679

Sorted results

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

0.032258064516129	3.44	3.149	2.22	1.188	0.8438	0.2215

0.0645161290322581	2.8	2.567	1.824	0.9964	0.7241	0.1916

0.0967741935483871	1.87	1.715	1.232	0.6615	0.4878	0.1306

0.129032258064516	1.134	1.035	0.726	0.3872	0.2792	0.07558

0.161290322580645	1.095	1.014	0.7196	0.3848	0.2769	0.07318

0.193548387096774	0.8224	0.7522	0.6065	0.338	0.2407	0.06385

0.225806451612903	0.4395	0.4017	0.2835	0.2471	0.1982	0.05477

0.258064516129032	0.4003	0.3676	0.2638	0.1605	0.1212	0.03367

0.290322580645161	0.3974	0.3613	0.2502	0.1561	0.116	0.03201

0.32258064516129	0.3924	0.3563	0.2461	0.1541	0.1124	0.03101

0.354838709677419	0.3661	0.3338	0.2454	0.1448	0.1038	0.02911

0.387096774193548	0.3169	0.288	0.2343	0.143	0.1036	0.02761

0.419354838709677	0.3161	0.2864	0.2079	0.1296	0.09198	0.02498

0.451612903225806	0.3124	0.2856	0.1986	0.1041	0.0752	0.02151

0.483870967741936	0.269	0.2446	0.1685	0.09884	0.07234	0.01962

0.516129032258065	0.2439	0.2228	0.1642	0.08855	0.06397	0.0195

0.548387096774194	0.2434	0.2222	0.153	0.08308	0.05961	0.01878

0.580645161290323	0.2072	0.1895	0.1327	0.07082	0.05948	0.01595

0.612903225806452	0.1903	0.1738	0.1196	0.07013	0.05036	0.01562

0.645161290322581	0.1728	0.1573	0.1096	0.06385	0.05015	0.01392

0.67741935483871	0.1696	0.1536	0.1094	0.06187	0.04811	0.01387

0.709677419354839	0.1352	0.1245	0.09044	0.05021	0.04498	0.0134

0.741935483870968	0.03998	0.03622	0.02735	0.0153	0.01106	0.004486

0.774193548387097	0.03769	0.03465	0.0248	0.01356	0.01037	0.003162

0.806451612903226	0.03272	0.02974	0.02032	0.01072	0.007687	0.002838

0.838709677419355	0.01202	0.0109	0.008324	0.005153	0.003726	0.001498

0.870967741935484	0.006412	0.005805	0.003967	0.002118	0.001749	0.000679

0.903225806451613	0.003346	0.003037	0.002359	0.001998	0.001576	0.0006361

0.935483870967742	0.002541	0.002503	0.002343	0.001616	0.001186	0.0004286

0.967741935483871	0.001604	0.001584	0.001497	0.001288	0.001136	0.0004193

0.1	1.7964	1.647	1.1814	0.63407	0.46694	0.125098

			Average of yearly averages:	0.0385262333333333

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: INDFLTu

Metfile:	w12834.dvf

PRZM scenario:	FLturfSTD.txt

EXAMS environment file:	ir298.exv

Chemical Name:	Indoxacarb

Description	Variable Name	Value	Units	Comments

Molecular weight	mwt	527.8	g/mol

Henry's Law Const.	henry	6e-10	atm-m^3/mol

Vapor Pressure	vapr	1.9e-10	torr

Solubility	sol	8	mg/L

Kd	Kd	25	mg/L

Koc	Koc		mg/L

Photolysis half-life	kdp	3	days	Half-life

Aerobic Aquatic Metabolism	kbacw	34	days	Halfife

Anaerobic Aquatic Metabolism	kbacs	248	days	Halfife

Aerobic Soil Metabolism	asm	156	days	Halfife

Hydrolysis:	pH 7	36	days	Half-life

Method:	CAM	2	integer	See PRZM manual

Incorporation Depth:	DEPI	0	cm

Application Rate:	TAPP	0.655	kg/ha

Application Efficiency:	APPEFF	1	fraction

Spray Drift	DRFT	0	fraction of application rate applied to pond

Application Date	Date	10/04	dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17:	FILTRA	

	IPSCND	1

	UPTKF	

Record 18:	PLVKRT	

	PLDKRT	0.03

	FEXTRC	0.5

Flag for Index Res. Run	IR	Reservoir

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

stored as INDPATu.out

Chemical: Indoxacarb

PRZM environment: PAturfSTD.txt	modified Thuday, 23 February 2006 at
16:55:08

EXAMS environment: ir298.exv	modified Thuday, 29 August 2002 at 14:34:12

Metfile: w14751.dvf	modified Wedday, 3 July 2002 at 08:06:14

Water segment concentrations (ppb)

h4-

h4-

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D

F

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T

U

z

‹

ž

Ù

Û

ú

h4-

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U

û

ü

摧㷔¥ሀú

û

ü

0.1072	0.0926	0.02854

0.709677419354839	0.2162	0.2002	0.1468	0.09579	0.07018	0.0243

0.741935483870968	0.1087	0.09984	0.0717	0.05044	0.04532	0.01672

0.774193548387097	0.08477	0.07699	0.05342	0.03903	0.03166	0.01505

0.806451612903226	0.0742	0.06811	0.05254	0.02962	0.02977	0.01311

0.838709677419355	0.06737	0.06176	0.04893	0.02893	0.02106	0.008175

0.870967741935484	0.05682	0.05192	0.03917	0.02334	0.01771	0.006912

0.903225806451613	0.03191	0.02917	0.02061	0.01327	0.01028	0.003969

0.935483870967742	0.01562	0.01462	0.01109	0.00746	0.006781	0.003006

0.967741935483871	0.01242	0.01153	0.008718	0.006618	0.005565	0.002952

0.1	2.2242	2.1004	1.6599	0.96748	0.70607	0.19292

					Average of yearly averages:	0.0774701333333333

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: INDPATu

Metfile:	w14751.dvf

PRZM scenario:	PAturfSTD.txt

EXAMS environment file:	ir298.exv

Chemical Name:	Indoxacarb

Description	Variable Name	Value	Units	Comments

Molecular weight	mwt	527.8	g/mol

Henry's Law Const.	henry	6e-10	atm-m^3/mol

Vapor Pressure	vapr	1.9e-10	torr

Solubility	sol	8	mg/L

Kd	Kd	25	mg/L

Koc	Koc		mg/L

Photolysis half-life	kdp	3	days	Half-life

Aerobic Aquatic Metabolism	kbacw	34	days	Halfife

Anaerobic Aquatic Metabolism	kbacs	248	days	Halfife

Aerobic Soil Metabolism	asm	156	days	Halfife

Hydrolysis:	pH 7	36	days	Half-life

Method:	CAM	2	integer	See PRZM manual

Incorporation Depth:	DEPI	0	cm

Application Rate:	TAPP	0.655	kg/ha

Application Efficiency:	APPEFF	1	fraction

Spray Drift	DRFT	0	fraction of application rate applied to pond

Application Date	Date	10/04	dd/mm or dd/mmm or dd-mm or dd-mmm

Record 17:	FILTRA	

	IPSCND	1

	UPTKF	

Record 18:	PLVKRT	

	PLDKRT	0.03

	FEXTRC	0.5

Flag for Index Res. Run	IR	Reservoir

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

 

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