### − 1

**−**

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

WASHINGTON D.C., 20460

OFFICE OF

PREVENTION, PESTICIDES AND

TOXIC SUBSTANCES



## May 26, 2005

MEMORANDUM

SUBJECT: Reassessment of the Environmental Risk and Data Requirements of Prallethrin,

after Product Label Revision for MULTICIDE ® 

## Fogging Concentrate 2798

(PC Code 128722; DP Barcode D312733)

TO: George LaRocca, Product Manager #13

Registration Division (7505C)

FROM: Gabe Patrick, Biologist

José Luis Meléndez, Chemist

ERB V/Environmental Fate and Effects Division (7507C)

THROUGH : Mah T. Shamim, Ph.D., Chief

Environmental Risk Branch V

Environmental Fate and Effects Division (7507C)

The following data requirements are no longer outstanding:

Environmental Fate

Aerobic Aquatic Metabolism (162

- 4)

- The studies (MRID 44860101, 44861002, two

radiolabels) were considered supplemental. They provide information about systems that may be

partly aerobic and partly anaerobic. The systems were flooded prior to application of the test

material, which may have caused anaerobic conditions. The registrant indicated that the reports

show that the dissolved oxygen was measured in the water phase (resulting in 40

- 73% relative

dissolved oxygen, providing an indirect measure of the aerobicity of the water phase; however, the

aerobicity of the sediment is uncertain). They also argue that they followed the current guidelines

at the time of the analysis. For this chemical, the risks were well below the levels of concern (for

the most sensitive species, freshwater a nd estuarine/marine invertebrates, RQs<0.00). At this

time, the EFED will not require additional data. The study will not be upgraded to acceptable,

and will remain supplemental. Should the registrant wish to add uses of this chemical, the EFED

### − 2

**−**



## will rea ssess the data requirement. EFED advises the registrant that in future studies, the

aerobicity of the system must be measured in the water and in the sediment.

Eco

- toxicity

Acute Freshwater Fish Toxicity

- Bluegill [72

- 1(b) or 850.1075] and Rainbow Trout [72

- 1(d)

or 850.1075]

- TEPs: Testing with the TEP, MULTICIDE ® 

## Fogging Concentrate 2798, is

needed because MULTICIDE ® 

## Fogging Concentrate 2798 insecticide (it cont ains 1.00%

prallethrin, 5.00% sumithrin, and 5.00% piperonyl butoxide) will be deposited in water from ULV

ground applications and aerial applications, and will be used in combination with the synergist,

piperonyl butoxide which is expected to enhance the toxicity of prallethrin in MULTICIDE ®



## Fogging Concentrate 2798. Now, EFED is seeking TEP testing for the most prallethrin sensitive

aquatic surrogate species, mysid shrimp. After evaluating the results of mysid shrimp TEP,

testing EFED will decide if mor e TEP testing is needed for freshwater fish species. EFED is

reserving the need for this study.

Acute Freshwater Invertebrate Toxicity

- TEP [72

- 2(b)]: Testing with the TEP,

MULTICIDE ® 

## Fogging Concentrate 2798, is needed because MULTICIDE ® 

## Fogging

Conce ntrate 2798 insecticide (it contains 1.00% prallethrin, 5.00% sumithrin, and 5.00%

piperonyl butoxide) will be deposited in water from ULV ground applications and aerial

applications, and will be used in combination with the synergist, piperonyl butoxide w hich is

expected to enhance the toxicity of MULTICIDE ® 

## Fogging Concentrate 2798. Now, EFED is

seeking TEP testing for the most prallethrin sensitive aquatic surrogate species, mysid shrimp.

After evaluating the results of mysid shrimp TEP, testing EFED w ill decide if more TEP testing is

needed for freshwater invertebrate species. EFED is reserving the need for this study.

Acute Estuarine/Marine Fish Toxicity

- TEP [72

- 3(d)]: Testing with the TEP, MULTICIDE ®



## Fogging Concentrate 2798, is needed because M ULTICIDE ® 

## Fogging Concentrate 2798

insecticide (it contains 1.00% prallethrin, 5.00% sumithrin, and 5.00% piperonyl butoxide) will be

deposited in water from ULV ground applications and aerial applications, and will be used in

combination with the synergis t, piperonyl butoxide which is expected to enhance the toxicity of

MULTICIDE ® 

## Fogging Concentrate 2798. Now, EFED is seeking TEP testing for the most

prallethrin sensitive aquatic surrogate species, mysid shrimp. After evaluating the results of

mysid shr imp TEP, testing EFED will decide if more TEP testing is needed for estuarine/marine

fish species. EFED is reserving the need for this study.

Acute Estuarine/Marine Mollusk Toxicity

- TEP [72

- 3(e)]: Testing with the TEP,

MULTICIDE ® 

## Fogging Concentrate 2 798, is needed because MULTICIDE ® 

## Fogging

Concentrate 2798 insecticide (it contains 1.00% prallethrin, 5.00% sumithrin, and 5.00%

piperonyl butoxide) will be deposited in water from ULV ground applications and aerial

applications, and will be used in comb ination with the synergist, piperonyl butoxide which is

expected to enhance the toxicity of MULTICIDE ® 

## Fogging Concentrate 2798. Now, EFED is

seeking TEP testing for the most prallethrin sensitive aquatic surrogate species, mysid shrimp.

After evaluating the results of mysid shrimp TEP, testing EFED will decide if more TEP testing is

needed for estuarine/marine mollusk species. EFED is reserving the need for this study.

### − 3

**−**



## Estuarine/Marine Fish Early Life

- Stage

- TGAI [72

- 4(b)]: At this time, EFED doesn’t need

this study. EFED requested (initial assessment dated 10/29/03) an estuarine/marine fish early

life

- stage toxicity test using the TGAI for prallethrin. MULTICIDE ® 

## Fogging Concentrate 2798

will be transported estuarine/marine water bodies fro m terrestrial use. EFED wanted this testing

because prallethrin’s presence in water is likely to be continuous or recurrent and prallethrin’s

aquatic acute LC 50 

## and EC 50 

## are less than 1 ppm. Prallethrin’s sheepshead minnow LC 50 

## is 26 ppb

and mysid shrimp EC 50 

## is 3.9 ppb. The registrant in a September 30, 2004 letter to the Agency,

requested EFED waive this requirement. The registrant noting prallethrin was more acutely toxic

to freshwater fish (rainbow trout LC 50 

## = 12 ppb) tha n to estuarine/marine fish (sheepshead minnow

LC 50 

## = 26 ppb). Because of this, the registrant wanted EFED to use the chronic freshwater fish

toxicity (rainbow trout chronic NOAEC = 3 ppb) to characterize the chronic risk to

estuarine/marine fish. EFED ma de a cursory examination of EFED’s Ecotox One

- Liner database

for pyrethroid chemicals. This examination, with limited data, supported the conclusion that

pyrethroids more acutely toxic to freshwater fish than estuarine/marine fish can also be expected to

be more toxic on a chronic basis. EFED will waive this requirement for prallethrin (M. Rexrode,

per. com., 4/28/05). Future chronic risk characterization to estuarine/marine fish will use the

rainbow trout chronic NOAEC of 3 ppb.

Freshwater Fish Full Life Cycle

- TGAI (72

- 5 or 850.1500): At this time, EFED does not

need a freshwater fish full life cycle test using the TGAI for prallethrin. Prallethrin’s

aquatic exposure is predicted to be less than the EEC level needed for testing. The

maximum mode led EEC predicted for prallethin in water is 8.76 ppt (0.00876 ppb). This

level is less than one

- tenth of the NOAEC in the fish early life

- stage or invertebrate life

cycle test. The rainbow trout early life

- stage NOAEC for prallethrin is 3.0 ppb and the

daphnia life cycle NOAEC for prallethrin is 0.65 ppb. One

- tenth the daphnia life cycle

NOAEC is 0.065 ppb which is greater than the maximum predicted aquatic EEC for

prallethin (that is, 0.00876 ppb). This suggests, at maximum predicted EECs,

prallethin’s exposure should be below levels showing a chronic effect in aquatic

organisms. EFED is reserving the need for this study. Should the registrant wish to add uses of

this chemical, EFED will reassess the data requirement

Estuarine and Marine Whole Sedimen t Toxicity Invertebrates, Acute

- TGAI (850.1740) :

EFED is reserving the need for testing with estuarine/ marine invertebrates using the TGAI. The

registrant in a September 30, 2004 letter to the Agency agreed to Freshwater Whole Sediment

Toxicity Invert ebrates, Acute

- TGAI (850.1735) testing using the amphipod, Hyallella

azteca . The registrant agreed to conduct 850.1740 testing, if adverse effects are noted

in 850.1735 testing.

Estuarine/Marine Invertebrate Life

- Cycle

- TGAI [72

- 4(b)]: At this time, EFED doesn’t

need this study. EFED requested (first assessment dated 10/29/03) this study because EFED

expects MULTICIDE ® 

## Fogging Concentrate 2798 will be applied over estuarine/marine water

bodies and will be transported to these environments from terrestrial use. EFED needed this

testing because prallethrin’s presence in water is likely to be continuous or recurrent and

prallethrin’s aquatic acute LC 50 

## and EC 50 

## are less than 1 ppm. Prallethrin’s sheepshead minnow

### − 4

**−**



## LC 50 

## is 26 ppb and mysid shrimp EC 50 

## is 3.9 ppb. However, the latest modeling for

MULTICIDE ® 

## Fogging Concentrate’s uses shows the peak water column levels of prallethrin

expected are 0.00876 ppb and the 21

- day concentrations expected are 0.00532 ppb. These

expected pr allethrin aquatic EEC levels are two orders of magnitude below the lowest

estuarine/marine acute toxicity endpoint (that is, mysid shrimp EC 50 

## = 3.9 ppb ) for prallethrin.

Based on this, EFED doesn’t expect adverse prallethrin acute or chronic effects to

e stuarine/marine invertebrates from MULTICIDE ® 

## Fogging Concentrate’s proposed uses.

EFED is reserving the need for this study. Should the registrant wish to add uses of this chemical,

EFED will reassess the data requirement.

Aquatic Degradate Testing: I n previous assessments EFED requested aquatic degradate testing

for prallethrin degradates. EFED made this request because prallethrin degrades rapidly with a

pseudo first

- order half

- life of 13.6 hours in aqueous photolysis testing. Photodegradation is th e

primary route of prallethrin transformation. The major degradates are ketolon at 37.3% of the

applied. PGLS comprised a maximum of 26.0% at 192 hours. Keto

- PGLS comprised a

maximum of 16.5% after 24 hours of irradiation. EFED may need degradate test ing if the parent

material is short

- lived and any degradate is formed in large percentage. EFED reassessed the

need for prallethrin degradate testing through closer examination of these degradates. EFED has

now determined these degradates are the result of the rupture of the ester linkage of the parent,

resulting in a break of the basic frame or backbone structure of the pyrethroid prallethrin. EFED

believes that these degradates may have lost their activity in the process and that they are probably

less toxic than the parent. Because of this, EFED waives the need for prallethrin degradate testing

at this time.

The following are outstanding data requirements:

Eco

- toxicity

Honey Bee Residue on Foliage

- Typical End

- use Product (TEP) (141

- 2 or 850.3030 ): A

guideline study is required to be submitted with MULTICIDE ® 

## Fogging Concentrate 2798 at the

maximum allowable application rates to determine the residual toxicity of this product to bees as

the result of an Ultra Low Volume (ULV) application.

Freshwater Whole Sediment Toxicity Invertebrates, Acute

- TGAI (850.1735): Testing using

the TGAI is required to determine the toxicity and bioaccumulation potential of prallethrin in

sediments in benthic organisms. Testing is required for prallethrin bec ause prallethrin is toxic to

aquatic invertebrates, binds to sediment, and may persist on sediment surfaces. The registrant in a

September 30, 2004 letter to the Agency agreed to Freshwater Whole Sediment Toxicity

Invertebrates, Acute

- TGAI (850.1735) te sting using the amphipod, Hyallella azteca

. This

species testing is agreeable to EFED (M. Rexrode, per. com., 4/28/05). Testing using

Chironomus tentans is reserved pending the results using the test species, Hyallella azteca

.

- Test organism: Hyallella azteca

.

- Duration: 10 days, endpoint is survival.

### − 5

**−**



## Acute Estuarine/Marine Shrimp Toxicity

- TEP [72

- 3(f)]: Testing with the TEP,

MULTICIDE ® 

## Fogging Concentrate 2798, is needed because MULTICIDE ® 

## Fogging

Concentrate 2798 insecticide (it contains 1.00% prallethrin, 5.00% sumithrin, and 5.00%

piperonyl butoxide) will be deposited in water from ULV ground applications and aerial

applications, and will be used in combination with the synergist, piperonyl butoxide which is

expected to enhance the toxi city of the MULTICIDE ® 

## Fogging Concentrate 2798. EFED expects

the synergist, piperonyl butoxide, will likely increase the acute aquatic toxicity of prallethrin

fivefold or more (R. Lee, per. com., 5/25/05) compared to the toxicity of prallethrin used alon e.

Because of this, EFED needs TEP testing on the most sensitive aquatic species. Acutely, mysid

shrimp is the most prallethrin sensitive aquatic surrogate species (EC 50 

## = 3.9 ppb).

Seedling Emergence and Vegetative Vigor

- Tier I

- TEP [122

- 1(a & b)]: Terrestrial plant

Tier I seedling emergence and vegetative vigor testing of a prallethrin Technical End

- Use product

(TEP) is needed for all pesticides having outdoor uses. Testing with the TEP, MULTICIDE ®



## Fogging Concentrate 2798, is needed.

Aquatic P lant Growth

- Tier I

- TEP (122

- 2): Aquatic plant testing is needed for all pesticides

having outdoor uses. Tier I aquatic plant testing is a maximum dose test designed to quickly

evaluate the toxic effects to the test species in terms of growth and repr oduction and to determine

the need for additional aquatic plant testing. Testing with the TEP, MULTICIDE ® 

## Fogging

Concentrate 2798, is needed.



# Structure of Prallethrin

### − 6

**−**



## Conclusions:

................................ ................................ ................................ ................................ .. - 9

-

Uncertainties:

................................ ................................ ................................ ................................ - 9

-

Background:

................................ ................................ ................................ ................................ - 10

-

EFED Response:

................................ ................................ ................................ ......................... - 11

-

Appendix A. Equilibrium Partitioning Model and Risk Estimation for Benthic Organisms

... - 20

- Equilibrium Partitioning

................................ ................................ ................................ . - 20

- Assumptions of the equilib rium partitioning model

................................ ....................... - 21

-

Appendix B. Output Files from AGDISP and PRZM/EXAMS

................................ ................. - 23

-

AGDISP Numerical Values:

................................ ................................ ........................... - 23

- Input Summary:

................................ ................................ ................................ .............. - 23

- Aquatic Deposition Assessment

................................ ................................ ..................... - 26

- PRZM/EXAMS Output Files

................................ ................................ .......................... - 26

- 4 inch pond depth

................................ ................................ ................................ ............ - 26

-

Water column

................................ ................................ ................................ ...... - 26

-

Pore water

................................ ................................ ................................ ........... - 29

- 1 foot depth

................................ ................................ ................................ ..................... - 32

-

Water column

................................ ................................ ................................ ...... - 32

-

Pore water

................................ ................................ ................................ ........... - 35

- 1 meter depth

................................ ................................ ................................ ................... - 38

-

Water column

................................ ................................ ................................ ...... - 38

-

Pore water

................................ ................................ ................................ ........... - 41

- 2 meters pond depth (standard pond)

................................ ................................ .............. - 44

-

Water column

................................ ................................ ................................ ...... - 44

-

Pore water

................................ ................................ ................................ ........... - 47

-

Appendix C. Data Requirements

................................ ................................ ................................ - 51

- Ecological Effects Data Requirement s for: Prallethrin

................................ ................ - 51

- Environmental Fate Data Requirements for: Prallethrin

................................ ................ - 53

-

### − 7

**−**



## Conclusions:

The registrant, MGK (McLaughlin Gormley King Company), seeks full registration of prallethrin,

for the control of adult nuisance insects (e.g., mosquitos, midges, gnats, black flies, etc.) at outdoor

residential/recreational areas (vegetation surrounding parks, woodlands, swamps, marshes,

overgrown areas, and golf courses). At this time, the registrant submitted a revised label for

MULTICIDE ® 

## Fogging Concentrate 2798, which includes restrictions related to the boom height

(recommended 50

- 300 ft), and the interval between applications (recommended 7 days, except

under high pressure). Furthermore, the label restricts the aer ial uses of the product in the state of

Florida except under certain circumstances (specifically authorized by the Bureau of Entomology,

Florida Department of Agriculture and Consumer Services). The registrant addressed some of

the outstanding data requir ements imposed in a previous action. The following are the findings:

Based on the assumptions that the maximum application rate of prallethrin is 0.0008 lb/A, that

prallethrin is not applied directly over water, but it reaches adjacent bodies of water vi a spray drift,

a model of 26 applications at 7 day intervals, and an application with a boom height of 50 ft.,

EFED has found that there are no exceedance of the LOCs for acute, restricted use or endangered

species for all aquatic animals in the water colu mn. Furthermore, there are no exceedance of the

LOCs for acute, restricted use or endangered species aquatic invertebrates that dwell in the

benthos, based on the EqP screening method. However, there are no available plant data at this

time.

Uncertainti es:

There are certain uncertainties regarding this assessment of prallethrin.

**•** There are no terrestrial or aquatic plant toxicity data for prallethrin. EFED did not assess

the acute risk to nonendangered or endangered terrestrial o r aquatic plants species. EFED

is uncertain about these risks.

**•** There is uncertainty related to the EqP theory used to estimate the risk quotients for benthic

organisms. It is assumed that the toxicity of the most sensitive invertebrate species is a

surr ogate for the benthic organisms. The EqP theory may not be conservative enough.

**•** There are no Typical End

- use Product (TEP) toxicity data for prallethrin. EFED expects

the synergist, piperonyl butoxide, used in MULTICIDE ® 

## Fogging Concentrate 2798, will

li kely increase the acute aquatic toxicity of prallethrin fivefold or more (R. Lee, per. com.,

5/25/05) compared to the toxicity of prallethrin used alone. EFED is uncertain about the

increased toxicity that may result from the use of this end

- use formulati on and how it

would affect prallethrin’s risk to aquatic organisms which includes endangered aquatic

species.

**•** The modeling with AGDISP was done assuming that there is no direct application to any

bodies of water. According to the instructions in the label, direct applications should not

occur at any time. However, typically large levels of spray drift may reach adjacent

bodies of water. Spray drift levels larger than those assumed in the modeling for this

assessment (that is, 12.5%) will result in increased aquatic organism exposure. This may

increase the risk to aquatic organisms.

### − 8

**−**



## • The modeling was done with a 7 days interval; however, the label allows a smaller interval

between application under certain circumstances, which may increase the ri sk.

**•** EFED modeled aquatic EECs based on 50 ft. boom height. Labeling statements specify,

“Applications should be made at an altitude of 50 to 300 feet.” This implies applications

can be made at a lessor height which would increase potential risk to aquati c organisms.

Background:

The registrant, MGK ( McLaughlin Gormley King Company 

## ), seeks full registration of prallethrin, for

the control of adult nuisance insects (e.g., mosquitos, midges, gnats, black flies, etc.) at outdoor

resident ial/recreational areas (vegetation surrounding parks, woodlands, swamps, marshes,

overgrown areas, and golf courses). Prallethrin like other synthetic pyrethroids is a neural toxin

that alters the normal function of insect nerves by modifying the kinetics of voltage

- sensitive

sodium channels thus effecting nerve action potential.

This is EFED’s third assessment for this proposed registration. In EFED’s initial risk

assessment (DP Barcodes D239293, D291569, and D257565 dated 10/29/03), EFED conducted a

refined scenario for the assessment of possible aquatic impact of prallethrin’s proposed use as an

adulticide to control nuisance insects in outdoor residential/recreational areas. Using modeling

for the most reasonable, aquatic application to marshes and swamps, EFED found that prallethrin’s

proposed uses are not likely to result in acute risks to freshwater or estuarine/marine organisms or

chronic risks to freshwater organisms (no LOCs exceeded). However, applications of prallethin

to water bodies deeper than typical marshes and swamps (i.e., **≥** 1 foot) such as ponds, would be

lik ely to trigger acute endangered species risk to freshwater invertebrates and an acute restricted

use risks to estuarine/marine invertebrates (LOCs exceeded). Some key EFED assumptions in

this initial assessment were:

1) Applications would be made at a max imum rate of 0.0020 lb prallethrin/acre;

2) Applications would be made over water bodies;

3) 26 applications would be made every 4 days; and

4) Applications would be made aerially at a height of 25 feet above the spray block.

In a revised risk assessment (DP Barcode D301123 dated 6/10/04), EFED reassessed the risk because the registrant withdrew the pending application for registration of RESPONDÉ ®



## Insecticide, which had a higher application rate (0.002 lb prallethrin/A), and kept only the prod uct

MULTICIDE ® 

## Fogging Concentrate 2798, which has an application rate of 0.0008 lb

prallethrin/A. The latter product is a combination with other active ingredients (it contains 1.00%

prallethrin, 5.00% sumithrin, and 5.00% piperonyl butoxide). Again, us ing modeling for the

most reasonable typical scenarios, aquatic application to marshes, swamps, and standard pond,

EFED found that prallethrin’s uses were not likely to result in acute risks to freshwater or

estuarine/marine organisms (no LOCs exceeded). As in the initial assessment, this refined

assessment utilized the tools AGDISP, EXAMS, and PRZM/EXAMS to model aerial ULV

applications and aquatic scenarios of various depths (6 in., 1 ft., 1 m., and 2 m.). Some key EFED

assumptions in this second assess ment were:

1) Applications would be made at a maximum rate of 0.0008 lb prallethrin/acre;

### − 9

**−**



## 2) Applications would not be made over water bodies but drift to water bodies would occur ;

3) 26 applications would be made every 4 days; and

4) Applications would be made aerially at a height of 25 feet above the spray block.

At this time, resulting in EFED’s third assessment, dealing with a revised label for MULTICIDE ®



## Fogging Concentrate 2798 (EPA hole

- punch date 12

- 22

- 04), including restrictions related to the

boo m height (recommended 50

- 300 ft), and the interval between applications (recommended 7

days, except under high pressure). Furthermore, the label restricts the aerial uses of the product in

the state of Florida except under certain circumstances (specifica lly authorized by the Bureau of

Entomology, Florida Department of Agriculture and Consumer Services). The registrant also

addressed some of the outstanding data requirements imposed in a previous actions. Some key

EFED assumptions in this third assessmen t were:

1) Applications would be made at a maximum rate of 0.0008 lb prallethrin/acre;

2) Applications would not be made over water bodies but drift to water bodies would occur ;

3) 26 applications would be made every 7 days ; and

4) Applications would be ma de aerially at a height of 50 feet above the spray block.

EFED Response:

The LOCs triggered in the original risk assessment were based on applications of

prallethrin over deeper bodies of water (i.e., **≥** 1 foot). However, applicat ions of prallethrin

over shallow water bodies such as freshwater and estuarine/ marine marshes or swamps

suggested low risk to aquatic organisms. Therefore, EFED focused its attention to the

cases where there were exceedances.

Based on the information pr ovided by the registrant, EFED formulated a new more

refined scenario. The key points differences from previous scenarios were as follows:

**•** The input parameters in AGDISP were selected to more closely resemble the application of

MULTICIDE® 2798 (instead of the use of AGDISP default values). The input

parameters used in AGDISP modeling appear in Table 3. The summary of the results

from AGDISP appear in Table 4. The resulting outputs from AGDISP: Numerical

Values, Input Summary and Aquatic Deposition Ass essment, appear in Appendix B of this

document. The following are the major refinements in the AGDISP modeling:

**_** The flow rate was closely modeled as per label directions.

**_** The spray material was “user defined.” The percent active was modeled as per

lab el information. The specific gravity was estimated from label information

although it was found that it resembled that of the AGDISP default for oil.

**_** A “user defined” droplet size was utilized to further refine the model. The label

recommenda tion is D v0.5 

## = 30 μ. The smallest user defined droplet size had a D v0.5 

## = 47.79 (ASAE Aereosol to Very Fine). With this refinement, a droplet size with

D v0.5 

## = 30.43μ was achieved.

**_** The estimation of the value of spray drift was refined, based on the A GDISP

### − 10

**−**



## toolbox “Aquatic Deposition Assessment” (refer to output in Appendix B).

**•** Under “Use Areas”, the MULTICIDE® 2798 label (EPA hole

- punch date 12

- 22

- 04)

states: “For use in mosquito adulticiding programs involving outdoor residential and

recreational ar eas where adult mosquitoes are present in annoying number, and in

vegetation surrounding parks, woodlands, swamps, marshes, overgrown areas and golf

courses.” Therefore, the modeling approach included application to a field with drift

towards an adjacent body of water instead of application directly over the body of water.

The Tier II aquatic models PRZM/EXAMS (as opposed to EXAMS) were used.

**•** Dealing with the application interval and number of applications allowed, the label states:

“Retreat as needed af ter 7 days. More frequent treatments may be made if adult

mosquitoes have reinfested the treatment area...” For aquatic modeling purposes EFED

used a 7 day application interval to estimate exposure. Dealing with the number of

applications allowed or app lication interval, EFED doesn’t interpret this labeling statement

as a limit on the number of applications allowed or 7 days as the minimum retreatment

interval. For aquatic modeling purposes EFED used 26 applications to estimate exposure

because that is the maximum number of applications allowed by PRZM/EXAMS. In the

registrant’s (MGK’s) September 30, 2004 letter the registrant states: “Even in Florida,

where mosquito densities are high and the mosquito season is the longest in the nation, the

greatest f requency of applications is about twice a month...MGK’s modeling based on 10

applications is sufficient to cover the worst case scenario.” Given this statement, EFED

doesn’t understand why MGK fails to specify a maximum of 10 applications per season on

th e label for MULTICIDE® 2798.

**•** For aerial applications the label states: “Application should be made at an altitude of 50 to

300 feet.” For aquatic modeling purposes EFED used a 50 foot boom height to estimate

exposure.

**•** Since the label included certain lim itations of aerial applications in Florida 1 

## , the

Pennsylvania turf scenario was selected, in lieu of the Florida turf scenario. The input

parameters used in the modeling for PRZM/EXAMS appear in Table 5. The resulting

EECs at the four depths, 4 inches, 1 feet, 1 meter and 2 meters, are summarized in Table 6.

The output files from the PRZM/EXAMS runs appear in Appendix B.

1 “Prohibition on Aerial Use: Not for aeria l application in Florida unless specifically authorized by the Bureau of Entomology,

Florida Department of Agriculture and Consumer Services.”

### − 11

**−**



## • To evaluate the need for sediment toxicity tests, the “Write benthic pore water

concentrations” instruction of the graphica l user interphase pe4v.1.pl 2 

## , was activated.

Screening level RQs for sediment dwelling organisms were estimated with an

extrapolation method recommended by the Office of Water (USEPA). The

method is based on the Agency’s Equilibrium Partitioning Sediment Guidelines (ESG)

under the Clean Water Act [CWA Section 304(a)(2)]. After consultation with the OW,

EFED adopted the equilibrium partitioning (EqP) sediment method to be used when

sediment toxicity and/or exposure data are not available. This extrapolat ion method is

useful for estimating potential sediment exposure values, as well as sediment toxicity

values that can be used in a screening level risk assessment. The EqP theory holds that a

nonionic chemical in sediment partitions between sediment organi c carbon, interstitial

(pore) water and benthic organisms. At equilibrium, if the concentration in any phase is

known, then the concentration in the other phases can be predicted through the organic/

carbon soil partition coefficient. The EECs are calcula ted from the pore water

concentration (an output from PRZM/EXAMS) through the K OC 

## . In the absence of

sediment toxicity data, the endpoints are extrapolated from the water column

invertebrate toxicity tests. Further details about the EqP theory appear in

Appendix A.

**•** The acute risk for the most sensitive species of water column freshwater and estuarine/

marine invertebrates were revised and the results appear in Table 1a. There are no

exceedances in the levels of concern for any of the depths of the bodies of water. To

contrast the results, the risk quotients estimated in the previous assessment are summarized

in Table 1b (note that the peak EEC’s for the new assessment are lower by a factor of

around 3).

**•** The screening level acute risk for the freshwater and estuarine/marine benthic dwelling

invertebrates were estimated, based on the EqP theory and are summarized in Table 2.

There are no exceedances in the levels of concern for any of the depths of the bodies of

water.

**•** There are limitations and resulting uncertainty with the RQs listed in Table 2. First,

EFED is using pralle thrin’s toxicity to water column invertebrates (that is, freshwater and

estuarine/marine invertebrates) to estimate the RQs for benthic dwelling invertebrates in

this screening level assessment. Second, prallethrin’s anaerobic aquatic metabolism

half

- life is relatively long (37 days). This lengthy half

- life may adversely affect benthic

dwellers and would be better assessed if the toxicity to benthic dwellers were known

through the whole sediment toxicity testing EFED is requesting for prallethrin.

2 

### http://www.epa.gov/oppefed1/models/water

### − 12

**−**

Table 1a. Revised Prallethrin’s Acute Risk to Aquatic Invertebrates Based on Water Body

Depth, Based on Freshwater Invertebrate LC 50 

### (waterflea) of 6,200 ppt, and

Estuarine/Marine Invertebrate LC 50 

### (mysid shrimp) of 3,900 ppt.

Depth of Water Body Peak EECs (ppt) 1,2 Freshwater

Invertebrate RQs Estuarine/Marine

Invertebrate RQs Exceeds LOC 4

4.0 inches 7.01 0.001 0.002 NO

12.0 inches 7.61 0.001 0.002 NO

3.3 feet 8.12 0.001 0.002 NO

6.6 feet 8.76 0.001 0.002 NO

1 Based on 26 aerial applications applied every 7 days at an effective application rate of 0.0008 lb ai/A.

2 Based on AGDISP

- PRZM/EXAMS modeling

3 Risk Presumptions:

RQ greater or equal to 0.5 exceeds aquatic acute, acute restricted use and acute endang ered species LOCs.

RQ greater or equal to 0.1 exceeds aquatic acute restricted use and acute endangered species LOCs

RQ greater or equal to 0.05 exceeds aquatic acute endangered species LOCs

There are currently no estuarine/marine invertebrates listed as endangered species.



### Table 1b. FOR INFORMATION ONLY

- Prallethrin’s Acute Risk to Aquatic Invertebrates

Based on Water Body Depth, Based on Freshwater Invertebrate LC 50 

### (waterflea)

of 6,200 ppt, and Estuarine/Marine Invertebrate LC 50 

### (mysid shrimp) of 3,900 ppt

(RISK ASSESSMENT DATED JUNE 10, 2004).

Depth of Water Body Peak EECs (ppt) 1 Freshwater

Invertebrate RQs Estuarine/Marine

Invertebrate RQs Exceeds LOC 4

12.0 inches 2 20.1 0.003 0.005 NO

3.3 feet 2 25.4 0.004 0.007 NO

6.6 feet 3 29.2 0.005 0.007 NO

1 Based on 26 aerial applications applied every 4 days at an effective application rate of 0.0008 lb ai/A.

2 Based on AGDISP

- EXAMS modeling

3 Based on AGDISP

- PRZM/EXAMS modeling

4 Risk Presumptions are the same as in Table 1a.



### Table 2. Prallethrin’s Acute Risk Estimation to freshwater and estuarine/marine

sediment

- dwelling organisms based on data from the surrogate species: Freshwater

Invertebrate LC 50 

### (waterflea) of 6,200 ppt, and Estuarine/Marine Invertebrate LC 50 

### (mysid

shrimp) of 3,900 ppt. EEC values reflect porewater estimates that are in equilibrium

with sediment concentrations (K OC 

### of 2,533 L/kg) as generated from PRZM/EXAMS at

various depths of the body of water for the adulticide use.

### − 13

**−**

Depth of Water Body Peak EECs (ppt) 1,2 Freshwater

Invertebrate RQs Estuarine/Marine

Invertebrate RQs Exceeds LOC 4

4.0 inches 2.43 <0.000 0.001 NO

12.0 inches 3.14 0.001 0.001 NO

3.3 feet 3.00 0.001 0.001 NO

6.6 feet 2.59 <0.000 0.001 NO

1 Based on 26 aerial applications applied every 7 days at an effective application rate of 0.0008 lb ai/A.

2 Based on AGDISP

- PRZM/EXAMS modeling

3 Risk Presumptions are the same as in Table 1a.



## Table 3. Input parameters to AGDISP for prallethrin aerial applications.

Parameter Value Reference

Aircraft type Air Tractor AT

- 401; fixed wing AGDISP Default (USDA 2003)

Swath Width 60 ft AGDISP Default (USDA 2003)

Wing semispan 24.5 ft. AGDISP Default (USDA 2003)

Swath Displacement 0 ft. AGDISP Default (USDA 2003)

propeller rpm 2000; propeller rad. 4.5 ft.; 1

engine AGDISP Default (USDA 2003)

Fixed wing 1 engine AGDISP Default (USDA 2003)

Flight lines 20 AGDISP Default (USDA 2003)

Flight speed 120 mph AGDISP Default (USDA 2003)

Boom height 50 ft. Proposed Product Label

Number of nozzles 42 AGDISP Default (USDA 2003)

Vortex decay rate 1.25 mph AGDISP Default (USDA 2003)

Aircraft drag coefficient 0.1 AGDISP Default (USDA 2003)

Propeller efficiency 0.8 AGDISP Default (USDA 2003)

Ambient pressure 29.91 in Hg AGDISP Default (USDA 2003)

Planform area 294 ft 2 

### AGDISP Default (USDA 2003)

Nozzle spacing (even) 9.3 in. AGDISP Default (USDA 2003)

Wind speed 10 mph Product Label Recommendation

Wind direction

- 90 **°** , Perpendicular to flight path AGDISP Default (USDA 2003)

### − 14

**−**



## Table 3. Input parameters to AGDISP for prallethrin aerial applications.

Parameter Value Reference

Surface roughness 0.0075 AGDISP Default (USDA 2003)

Canopy None Most Conservative Scenario

Stability Overcast AGDISP Default (USDA 2003)

Relative humidity 90% Value typical of mosquito habitat

Temperature 85 **°** F Value typical of mosquito habitat

Droplet type User defined See details below

D v0.1 

### 10.29 μ m AGDISP v. 8.07

D v0.5 

### 30.43 μ m Product Label, AGDISP v. 8.07

D v0.9 

### 62.29 μ m AGDISP v. 8.07

Relative span 1.7 μ m Calculated from AGDISP Library

< 141 μ m 99.46 % AGDISP v. 8.07

Spray material Oil (user defined ) Product Label

Specific gravity, carrier 0.887 Estimated from Product Label

Specific gravity, nonvolatile 0.887 Estimated from Product Label

Active rate 0.0008 lb a.i./A Product Label

Active Fraction (prallethrin) 0.01 (1.00%) Product Label

Non

- volatile Fraction 0.99 Calculated

Spray volume rate 1.24 fl oz/A = 0.00969 gal/A Product Label

Evaporation rate 2.49 μ m2/ **°** C/sec Minimum value recommended by

AGDISP

Downwind water body

width 208.7 ft Standard ecological pond



## The results obtained are summarized in the following Table 4 (in contrast to the default

values for aerial applications of agricultural crops, of 95% and 5%, respectively).

Table 4. Summary of Results from AGDISP

Application Efficiency 2.47 %

### − 15

**−**



## Table 4. Summary of Results from AGDISP

Spray Drift (to standard pond) 12.5 %



### Table 5. Input parameters to PRZM/EXAMS for calculation of EECs of prallethrin

using results of Application Efficiency and Spray Drift from AGDISP.

Parameter Value Source

Application rate 0.0008 lb a.i./A =

0.0009 Kg a.i./ha Product Label

Number of applications 26 Recommended by EFED

Minimum interval between

applications 7 days Recommended by EFED

Application time, method of

application, PRZM scenario April 01

Aerial

PA turf scenario. Recommended by EFED, the PA

turf scenario because the label

imposes certain restrictions with

respect to aerial applications in FL

(incorporation depth 0.0 in.)

Aerobic soil metabolism 9 days MRID 42838601 (3x’s the available

value as per EFED guidance)

K OC 

### 2533 L/kg MRID 42810801 (average value as

per EFED guidance)

Henry’s law constant 1.72x10

- 3 

### atm·m 3 

### /mol VP/WSOL

Aerobic Aquatic Metabolism 18 days MRID 44861001, 02 (Upperbound

value, n=2, as per EFED guidance)

Anaerobic Aquatic Metabolism 37 days MRID 44366601, 02 (Upperbound

value, n=2, as per EFED guidance)

Aqueous photolysis 0.57 days MRID 43797601

Hydrolysis pH 5

pH 7

pH 9 stable

stable

4.9 days MRID 42838602

Molecular weight 300 g/mol Registrant’s Submissions

Solubility (WSOL) 80.3 ppm 10 x’s the available value of 8.03

ppm as per EFED Model Input

Guidance, Version II (2002);

Product Chemistry Data

Vapor pressure (VP) 3.50x10

- 5 

### mm Hg MSDS

PLDKRT (foliage pesticide 0 days EFED Model Input Guidance,

### − 16

**−**

Table 5. Input parameters to PRZM/EXAMS for calculation of EECs of prallethrin

using results of Application Efficiency and Spray Drift from AGDISP.

half

- life) Version II (U.S. EPA 2002)

FEXTRC (foliar extraction) 0.5 EFED Model Input Guidance,

Version II (U.S. EPA 2002)

FILTRA (filtration parameter;

required if CAM set to 3) NA

--

PLVKRT (pesticide decay rate on

plant foliage) 0/day EFED Model Input Guidance,

Version II (U.S. EPA 2002)

IPSCND( condition for disposition

of foliar pesticide after harvest) 3 PRZM Version 3.0 User’s Manual

(Carsel 1998)

CAM (chemical application

method) 2 PRZM Version 3.0 User’s Manual

(Carsel 1998)

UPTKF (plant uptake factor) 0 EFED Model Input Guidance,

Version II (U.S. EPA 2002)

DAIR (diffusion coefficient for

pesticide in the air) 0 PRZM Version 3.0 User’s Manual

(Carsel 1998)

ENPY(enthalpy of vaporization of

pesticide) Not Specified

--

Application Efficiency 0.0247 (fraction) AGDISP v. 8.07 output

Drift 0.125 (fraction) AGDISP v. 8.07 output

POND SCENARIOS

Scenario Depth of Pond Layer (PL) CHARL a 

### (m)

1 0.0278 m (0.333 ft) 0.0528

2 0.3048 m (1 ft) 0.177

3 1 m (3.3 ft) 0.525

4 (Standard Pond) 2 m (6.6 ft) 1.025

a 

### Characteristic Length = 0.5 (Pond Layer) + 0.5 (Benthic Layer) = A measure of pond depth. To edit EXAMS

commands: set charl(1) to “x”; set dep(1) to “x”; where “x” is the corresponding value listed in the pond depth

scenarios table.



## Table 6. Surface wa ter EECs (ppb or  g/L) ecological risk assessment for ponds of

various depths based on prallethrin use on turf a 

## . 7

- Day application interval.

Average Depth Peak Value 21 Day Value 60 Day Value

4 in. = 0.333 ft. 0.00701 0.00234 0.00230

### − 17

**−**



## 12 in. = 1 ft. 0.00761 0.00356 0.00346

3.3 ft. = 1 m. 0.00812 0.00459 0.00440

6.6 ft. = 2 m. 0.00876 0.00533 0.00511

a 

### Based on 1

- in

- 10 year exceedance probability (0.10).



## Table 7. Pore Water EECs (ppb or  g/L) ecological risk assessment for ponds of

various depths based on prallethrin use on turf a 

## . 7

- Day application interval.

Average Depth Peak Value 21 Day Value 60 Day Value

4 in. = 0.333 ft. 0.00243 0.00212 0.00204

12 in. = 1 ft. 0.00314 0.00297 0.00285

3.3 ft. = 1 m. 0.00300 0.00293 0.00276

6.6 ft. = 2 m. 0.00259 0.00252 0.00240

a 

### Based on 1

- in

- 10 year exceedance probability (0.10).

### − 18

**−**



# Appendix A. Equilibrium Partitioning Model and Risk Estimation

for Benthic Organisms

Equilibrium Partitioning

Under the Clean Water Act (CWA Section 304(a)(2) the Environmental Protection Agency (EPA)

and the States are expected to develop pr ograms for protecting the chemical, physical, and

biological integrity of the nation’s waters. In order to meet the objectives of the CWA, EPA has

periodically issued ambient water quality criteria (WQC). However, toxic contaminants in bottom

sediments of lakes, rivers, wetlands, and coastal waters create potential for environmental

degradation even if water column contamination values are low and comply with EPAs water

quality criteria. In order to evaluate this possible concern the USEPA Office of Water ( OW) also

calculates Equilibrium Partitioning Sediment Guidelines (ESG).

Pesticide compounds that bind readily to particulate and organic carbon in the water column can

eventually settle onto the benthos. This increase in particulate

- bound

- pesticides can result in an

accumulation of compounds in or on the sediment that may have the potential for toxic impact to

benthic and epibenthic aquatic organisms (e.g., early life stage of many invertebrates and fish, as

well as crabs and shrimp). However, evaluating the risk to aquatic life from this exposure becomes

problematic especially if there is a lack of adequate sediment toxicity and exposure data.

Therefore, in order to assess this potential for pesticide risk to aquatic benthic systems, the

Environmental Fat e and Effects Division (EFED) of the Office of Pesticides Program (OPP) has

adopted the method used by the OW that relies on equilibrium partitioning (EqP) of chemicals.

The EqP theory is based on the hydrophobicity and concentrations of the chemical norma lized to

organic carbon (OC) in sediment (De Toro et al. 1991) and holds that a nonionic chemical in

sediment partitions between sediment organic carbon, interstitial (pore) water and benthic

organisms. At equilibrium, if the concentration in any phase is known, then the concentration in

the other phases can be predicted. A key component to this theory is the chemicals organic carbon

coefficient (Koc), which is constant for every chemical and represents the ratio of the chemical

concentration in water to th e concentration in organic carbon. The document, “ Technical Basis for

the Derivation of Equilibrium Partitioning Sediment Guidelines (ESGs) for the Protection of

Benthic Organisms: Nonionic Organics” (USEPA, 2000a), demonstrates that biological responses

of benthic organisms to nonionic organic chemicals in sediments are different when the sediment

concentrations are expressed on a dry weight basis, but similar when expressed on a u g chemical/g

organic carbon basis ( u g/g

oc 

## ). Similar responses were also observed across sediments when

interstitial water concentrations were used to normalize biological availability. The Technical

Basis Document further demonstrates that if the toxic effect concentration in water is known (e.g.,

LC 50 

## ), the effect concentrati on in sediment on a u g/g

oc 

## basis can be predicted by multiplying the

effect concentration in water by the chemical K

oc 

## ..

(LC 50 

## u g/L x Koc L/kg

oc 

## x 1 kg

oc 

## /1000g

oc 

## = LC 50 

## u g/g

oc 

## )

Since, EFED uses a deterministic method for its screening level risk assessment, the calculation of

### − 19

**−**



## risk quotient values (RQ) is important for assessing possible risk. The RQ values are calculated by

taking the ratio of the estimated exposure concentrations (EEC) to the toxicity effect value (e.g.,

LC 50 

## , NOAEC). The EEC values are model generated (e.g., GENEEC, PRZM/EXAMS) and

reflect peer evaluated and approved scenarios for assessing pesticide exposure to an aquatic

environment. However, the PRZM/EXAMS output produces water column EEC values, as well a s

sediment and porewater EEC values. Therefore, in order to assess possible toxic pesticide

exposure to aquatic organisms from sediments, EFED is using the PRZM/EXAMS model which

incorporates the principles of the equilibrium partitioning theory, in order to generate EECs from

sediment and porewater. By relying on sediment and/or porewater output values, EFED has two

ways for calculating RQ values for sediments by using porewater exposure values and bulk

sediment values.

The calculations that rely on por ewater can be calculated by dividing the PRZM/EXAMS output

value for porewater concentrations by the dissolved concentrations in the water column that

caused toxicity in bioassays (e.g., LC 50 

## ).

EEC porewater ug/L / LC50 ugL

If sediment effects data are available (LC50 ug/kg

oc 

## ), RQ can be produced by using the

PRZM/EXAMS sediment output value for sediment.

EEC sediment ug/ugoc / LC50 ug/kg

oc



## Assumptions of the equilibrium partitioning model

Three principle observations that underlie the equilibrium partitioning (EqP) approach:

1) The concentrations of nonionic organic chemicals in sediments (expressed on an organic

carbon basis) and in interstitial waters correlate w ith observed biological effects on

sediment

- dwelling organisms across a range of sediments.

2) Partitioning models can relate sediment concentrations for nonionic organic chemicals

on an organic carbon basis to freely

- dissolved concentrations in intersti tial water.

3) The distribution of sensitivities of benthic organisms is similar to that of water column

species.

The EqP approach assumes that:

1) The partitioning of a chemical between sediment organic carbon and interstitial water is

at or near equilibrium.

2) The concentration in either phase can be predictive using appropriate partition

coefficient and the measured concentration in the other phase.

### − 20

**−**



## 3) Organisms receive equivalent exposure from water

- only exposures or from any

equil ibrated phase (interstitial water via respiration; from sediment via ingestion or other

sediment integument exchange).

4) For nonionic compounds, effect concentrations in sediments on an organic carbon basis

can be predicted using the organic carbon parti tion coefficient (Koc) and effects

concentrations in the water.

### − 21

**−**



# Appendix B. Output Files from AGDISP and PRZM/EXAMS

AGDISP Numerical Values:

AGDISP Numerical Values

Drop Size Distribution:

Initial DSD

Dv0.1 10.29 = um

Dv0.5 30.43 = um

Dv0.9 62.29 = um

Relative Span: 1.71

< 141 = um: 99.46 %

Accountancy of Active:

Application Efficiency: 2.47 %

Downwind Deposition: 27.23 %

Airborne Drift: 70.29 %

Carrier Evaporated: 0.9945 %

RunID:

AGDISP Prall Revised Label.ag 8.08 03

- 25

- 2005 09:28:33



## Input Summary:

AGDISP Input Data Summary

-- General

--

Title: Prallethrin Label Revision

Notes:

Calculations Done: Yes

Run ID: AGDISP Prall Revised Label.ag 8.08 03

- 25

- 2005 09:28:33

-- Aircraft

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

Name Air Tractor AT

- 401

Type Library

Boom Height (ft) 50

Flight Lines 20

Optimize Flight Lines No

Flight Line Reps # Reps

1 1

2 1

3 1

4 1

5 1

6 1

7 1

8 1

9 1

10 1

11 1

12 1

13 1

14 1

### − 22

**−**

15 1

16 1

17 1

18 1

19 1

20 1

Wing Type Fixed

- Wing

Semispan (ft) 24.5

Typical Speed (mph) 119.99

Biplane Separation (ft) 0

Weight (lbs ) 6000

Planform Area (ft ▓ ) 294

Propeller RPM 2000

Propeller Radius (ft) 4.5

Engine Vert Distance (ft)

- 1.2

Engine Fwd Distance (ft) 11.9

-- Aerial Application Type

-- ---------------------------- Aerial Application Type Liquid

-- Drop Size Distribution

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

Name ASAE Fine to Medium

Type User

- defined

Drop Categories # Diam (um) Frac

1 1.03 0.0019

2 1.48 0.0024

3 1.99 0.0030

4 2.57 0.0038

5 3.23 0.0049

6 3.99 0.0062

7 4.85 0.0080

8 5.84 0.0103

9 6.97 0.0132

10 8.25 0.0168

11 9.72 0.0213

12 11.39 0.0267

13 13.30 0.0333

14 15.48 0.0409

15 17.97 0.0497

16 20.81 0.0593

17 24.05 0.0692

18 27.75 0.0783

19 31.97 0.0843

20 36.79 0.0885

21 42.29 0.0870

22 48.57 0.0801

23 55. 74 0.0687

24 63.91 0.0541

25 73.25 0.0382

26 83.90 0.0236

27 96.06 0.0124

28 109.94 0.0056

29 125.79 0.0021

30 143.87 0.0010

-- Nozzle Distribution

-- ---------------------------- Boom Length (%) 65.06

Nozzle Locations # Hor(ft) Ver(ft) Fwd(ft)

1

- 15.94 0 0

### − 23

**−**

2

- 15.16 0 0

3

- 14.38 0 0

4

- 13.61 0 0

5

- 12.83 0 0

6

- 12.05 0 0

7

- 11.27 0 0

8

- 10.5 0 0

9

- 9.72 0 0

10

- 8.94 0 0

11

- 8.16 0 0

12

- 7.39 0 0

13

- 6.61 0 0

14

- 5.83 0 0

15

- 5.05 0 0

16

- 4.28 0 0

17

- 3.5 0 0

18

- 2.72 0 0

19

- 1.94 0 0

20

- 1.17 0 0

21

- 0.3888 0 0

22 0.3888 0 0

23 1.17 0 0

24 1.94 0 0

25 2.72 0 0

26 3.5 0 0

27 4.28 0 0

28 5.05 0 0

29 5.83 0 0

30 6.61 0 0

31 7.39 0 0

32 8.16 0 0

33 8.94 0 0

34 9.72 0 0

35 10.5 0 0

36 11.27 0 0

37 12.05 0 0

38 12.83 0 0

39 13.61 0 0

40 14.38 0 0

41 15.16 0 0

42 15.94 0 0

-- Swath

-- ---------------------------- Swath Width 60 ft

Swath Displacement 0 ft

-- Spray Material

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

Name Oil

Type User

- defined

Nonvolatile Fraction 0.99

Active Fraction 0.01

Spray Volume Rate (gal/ac) 0.0097

Specific Gravity 0.887

Evaporation Rate ( ╡ m ▓ /deg C/sec) 2.49

-- Meteorology

-- ---------------------------- Wind Speed (mph) 10

Wind Direction (deg)

- 90

Temperature (deg F) 85

### − 24

**−**

Relative Humidity (%) 90

-- Atmospheric Stability

-- ------------------------- --- Atmospheric Stability Overcast

-- Transport

-- ---------------------------- Flux Plane Distance (ft) 0

-- Canopy

-- ---------------------------- Type None

-- Terrain

-- ---------------------------- Surface Roughness (ft) 0.0246

Upslope Angle (deg) 0

Sideslope Angle (deg) 0

-- Advanced

-- ---------------------------- Wind Speed Height (ft) 6.56

Max Compute Time (sec) 600

Max Downwind Dist (ft) 2608.24

Vortex Decay Rate (IGE) (mph) 1.25

Vortex Decay Rate (OGE) (mph) 0.3355

Aircraft Drag Coeff 0.1

Propeller Efficiency 0.8

Ambient Pressure (in hg) 29.91

Save Trajectory Files No

Half Boom No



## Aquatic Deposition Assessment

Level of Spray Drift =

(Initial Average Deposition to the Downwind Water Body * 100%)/Prallethrin Application Rate =

(0.0001 lb a.i./A x 100) / 0.0008 lb a.i./A = 12.5%



## PRZM/EXAMS Output Files

### − 25

**−**



## 4 inch pond depth

Water column

stored as Prallethrin.out

Chemical: Prallethrin

PRZM environment: PAturfC.txt modified Satday, 12 October 2002 at 17:27:02

EXAMS environment: pond298.exv modified Thuday, 29 August 2002 at 16:33:30

Metfile: w14737.dvf modified Wedday, 3 July 2002 at 09:06:12

Water s egment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.006976 0.00292 0.00232 0.00228 0.002194 0.001071

1962 0.006896 0.002838 0.002227 0.002182 0.002125 0.001082

1963 0.006862 0.002792 0.002195 0.002182 0.002111 0.00106 3

1964 0.00689 0.002847 0.002185 0.002151 0.002102 0.001055

1965 0.006871 0.002827 0.002207 0.002151 0.002087 0.001064

1966 0.006987 0.002962 0.00234 0.002296 0.002171 0.001067

1967 0.006998 0.002949 0.002334 0.002246 0.002185 0.001097

1968 0.007026 0.0030 01 0.002373 0.002326 0.002222 0.001075

1969 0.006884 0.002789 0.002185 0.002182 0.002125 0.001067

1970 0.006859 0.002784 0.002196 0.00221 0.002153 0.001062

1971 0.006937 0.00288 0.002271 0.002214 0.002125 0.001071

1972 0.00694 0.002873 0.002277 0.002287 0.002223 0.001095

1973 0.007036 0.003005 0.002382 0.0023 0.002187 0.001066

1974 0.006947 0.002898 0.002291 0.002245 0.00217 0.001099

1975 0.00701 0.002936 0.002292 0.002245 0.002173 0.001096

1976 0.006885 0.002819 0.002215 0.002178 0.002115 0.001058

1977 0 .006905 0.002858 0.002248 0.002168 0.0021 0.001064

1978 0.006929 0.002871 0.00227 0.002211 0.002127 0.001078

1979 0.006949 0.002893 0.002293 0.002282 0.002228 0.001098

1980 0.006837 0.00276 0.002175 0.002166 0.002079 0.001019

1981 0.006918 0.002869 0.00225 3 0.002161 0.002082 0.00107

1982 0.006894 0.002822 0.002232 0.002208 0.002123 0.001066

1983 0.006945 0.002881 0.00229 0.002247 0.002134 0.00103

1984 0.006972 0.002925 0.002312 0.002255 0.002155 0.001069

1985 0.006779 0.002691 0.002111 0.002145 0.002093 0.0 01052

1986 0.006888 0.002828 0.002227 0.00217 0.002097 0.001055

1987 0.006879 0.002829 0.002204 0.002174 0.002088 0.001062

1988 0.006952 0.002873 0.002276 0.002212 0.002102 0.001038

1989 0.006959 0.002905 0.002303 0.002278 0.0022 0.001091

1990 0.006931 0.0 02887 0.002276 0.002238 0.002146 0.001064

Sorted results

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

0.032258064516129 0.007036 0.003005 0.002382 0.002326 0.002228

0.001099

0.0645161290322581 0.007026 0.003001 0.002373 0.0023 0.002223

0.001098

0.09677419 35483871 0.00701 0.002962 0.00234 0.002296 0.002222 0.001097

0.129032258064516 0.006998 0.002949 0.002334 0.002287 0.0022

0.001096

0.161290322580645 0.006987 0.002936 0.00232 0.002282 0.002194

0.001095

0.193548387096774 0.006976 0.002925 0.002312 0.00228 0.002187

0.001091

0.225806451612903 0.006972 0.00292 0.002303 0.002278 0.002185

### − 26

**−**

0.001082

0.258064516129032 0.006959 0.002905 0.002293 0.002255 0.002173

0.001078

0.290322580645161 0.006952 0.002898 0.002292 0.002247 0.002171

0.001075

0.32258064516129 0.0069 49 0.002893 0.002291 0.002246 0.00217

0.001071

0.354838709677419 0.006947 0.002887 0.00229 0.002245 0.002155

0.001071

0.387096774193548 0.006945 0.002881 0.002277 0.002245 0.002153

0.00107

0.419354838709677 0.00694 0.00288 0.002276 0.002238 0.002146 0.0010 69

0.451612903225806 0.006937 0.002873 0.002276 0.002214 0.002134

0.001067

0.483870967741936 0.006931 0.002873 0.002271 0.002212 0.002127

0.001067

0.516129032258065 0.006929 0.002871 0.00227 0.002211 0.002125

0.001066

0.548387096774194 0.006918 0.002869 0.002253 0.00221 0.002125

0.001066

0.580645161290323 0.006905 0.002858 0.002248 0.002208 0.002125

0.001064

0.612903225806452 0.006896 0.002847 0.002232 0.002182 0.002123

0.001064

0.645161290322581 0.006894 0.002838 0.002227 0.002182 0.002115

0.001 064

0.67741935483871 0.00689 0.002829 0.002227 0.002182 0.002111

0.001063

0.709677419354839 0.006888 0.002828 0.002215 0.002178 0.002102

0.001062

0.741935483870968 0.006885 0.002827 0.002207 0.002174 0.002102

0.001062

0.774193548387097 0.006884 0.002822 0. 002204 0.00217 0.0021 0.001058

0.806451612903226 0.006879 0.002819 0.002196 0.002168 0.002097

0.001055

0.838709677419355 0.006871 0.002792 0.002195 0.002166 0.002093

0.001055

0.870967741935484 0.006862 0.002789 0.002185 0.002161 0.002088

0.001052

0.9032258 06451613 0.006859 0.002784 0.002185 0.002151 0.002087

0.001038

0.935483870967742 0.006837 0.00276 0.002175 0.002151 0.002082 0.00103

0.967741935483871 0.006779 0.002691 0.002111 0.002145 0.002079

0.001019

0.1 0.0070088 0.0029607 0.0023394 0.0022951 0.0022198 0.0010969

Average of yearly averages: 0.00106813333333333

Inputs generated by pe4.pl

- 8

- August

- 2003

Data used for this run:

Output File: Prallethrin

Metfile: w14737.dvf

PRZM scenario: PAturfC.txt

EXAMS environment file: pond298.exv

Chemical Na me: Prallethrin

Description Variable Name Value Units Comments

Molecular weight mwt 300 g/mol

Henry's Law Const. henry 1.72e

- 3 atm

- m^3/mol

### − 27

**−**

Vapor Pressure vapr 3.50e

- 5 torr

Solubility sol 80.3 mg/L

Kd Kd mg/L

Koc Koc 2533 mg/L

Photolysis half

- life kdp 0.57 days Half

- life

Aerobic Aquatic Metabolism kbacw 18 days Halfife

Anaerobic Aquatic Metabolism kbacs 37 days Halfife

Aerobic Soil Metabolism asm 9 days Halfife

Hydrolysis: pH 5 0 days Half

- life

Hydrolysis: pH 7 0 days Half

- life

Hydrolysis: pH 9 4.9 days Half

- life

Method: CAM 2 integer See PRZM manual

Incorporation Depth: DEPI 0.0 cm

Application Rate: TAPP 0.0009 kg/ha

Application Efficiency: APPEFF 0.025 fraction

Spray Drift DRFT 0.125 fraction of application rate applied to pond

Application Da te Date 01

- 04 dd/mm or dd/mmm or dd

- mm or dd

- mmm

Interval 1 interval 7 days Set to 0 or delete line for single app.

Interval 2 interval 7 days Set to 0 or delete line for single app.

Interval 3 interval 7 days Set to 0 or delete line for single app.

Interv al 4 interval 7 days Set to 0 or delete line for single app.

Interval 5 interval 7 days Set to 0 or delete line for single app.

Interval 6 interval 7 days Set to 0 or delete line for single app.

Interval 7 interval 7 days Set to 0 or delete line for single app.

Interval 8 interval 7 days Set to 0 or delete line for single app.

Interval 9 interval 7 days Set to 0 or delete line for single app.

Interval 10 interval 7 days Set to 0 or delete line for single app.

Interval 11 interval 7 days Set to 0 or delete l ine for single app.

Interval 12 interval 7 days Set to 0 or delete line for single app.

Interval 13 interval 7 days Set to 0 or delete line for single app.

Interval 14 interval 7 days Set to 0 or delete line for single app.

Interval 15 interval 7 days Set to 0 or delete line for single app.

Interval 16 interval 7 days Set to 0 or delete line for single app.

Interval 17 interval 7 days Set to 0 or delete line for single app.

Interval 18 interval 7 days Set to 0 or delete line for single app.

Interval 19 inte rval 7 days Set to 0 or delete line for single app.

Interval 20 interval 7 days Set to 0 or delete line for single app.

Interval 21 interval 7 days Set to 0 or delete line for single app.

Interval 22 interval 7 days Set to 0 or delete line for single app.

Interval 23 interval 7 days Set to 0 or delete line for single app.

Interval 24 interval 7 days Set to 0 or delete line for single app.

Interval 25 interval 7 days Set to 0 or delete line for single app.

Record 17: FILTRA

IPSCND 3

UPTKF 0

Record 18: PLVKR T 0

PLDKRT 0

FEXTRC 0.5

Flag for Index Res. Run IR Pond

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



## Pore water

stored as Prallethrinben.out

Chemical: Prallethrin

PRZM environment: PAturfC.txt modified Satday, 12 October 2002 at 17:27:02

EXAMS environment: pond298.exv modified Thuday, 29 August 2002 at 16:33:30

### − 28

**−**

Metfile: w14737.dvf modified Wedday, 3 July 2002 at 09:06:12

Benthic segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.002395 0.002249 0.002099 0.002025 0.001957 0.0009558

1962 0.002303 0.00216 0.001989 0.001922 0.001884 0.0009678

1963 0.002265 0.002121 0.001961 0.001925 0.001875 0.0009506

1964 0.002316 0.002159 0.001963 0.001898 0.001867 0.0009416

1965 0.002 295 0.00214 0.001961 0.001898 0.001854 0.0009503

1966 0.00241 0.002264 0.002122 0.002045 0.001936 0.0009524

1967 0.002427 0.002283 0.002116 0.001995 0.001946 0.0009846

1968 0.002455 0.002315 0.002146 0.002069 0.001984 0.0009603

1969 0.002239 0.00209 0.0019 29 0.001904 0.001879 0.0009529

1970 0.002262 0.002116 0.001974 0.001953 0.001914 0.0009477

1971 0.002355 0.00221 0.002048 0.001958 0.001889 0.0009567

1972 0.002333 0.002184 0.002034 0.002025 0.001982 0.0009797

1973 0.002469 0.002324 0.002154 0.0 02041 0.001949 0.0009501

1974 0.002356 0.002211 0.002048 0.001988 0.001933 0.0009845

1975 0.002376 0.002231 0.002044 0.001979 0.001929 0.0009799

1976 0.002293 0.002149 0.00199 0.001917 0.001873 0.0009437

1977 0.002302 0.002158 0.001995 0.001882 0.001839 0. 0009475

1978 0.002339 0.002194 0.00204 0.001953 0.001887 0.000963

1979 0.002359 0.002212 0.002062 0.00202 0.001983 0.0009816

1980 0.002233 0.002087 0.001948 0.001909 0.001841 0.0009019

1981 0.002324 0.002179 0.002006 0.001905 0.001844 0.000955

1982 0.002284 0.002137 0.001993 0.001947 0.001883 0.0009532

1983 0.00236 0.002213 0.002071 0.001996 0.001897 0.0009152

1984 0.002378 0.002241 0.002087 0.002001 0.001917 0.0009538

1985 0.002163 0.002017 0.001882 0.001887 0.001855 0.0009368

1986 0.002288 0.002143 0.001987 0.001895 0.001842 0.0009405

1987 0.002285 0.002137 0.001983 0.001921 0.001849 0.0009466

1988 0.002342 0.002195 0.002047 0.00196 0.001865 0.0009237

1989 0.002374 0.002229 0.002075 0.002016 0.001957 0.0009755

1990 0.002346 0.002206 0.002051 0.00198 0.00191 0.0009502

Sorted results

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

0.032258064516129 0.002469 0.002324 0.002154 0.002069 0.001984

0.0009846

0.0645161290322581 0.002455 0.002315 0.002146 0.002045 0.001983

0.0009845

0.0967741935483871 0.002427 0 .002283 0.002122 0.002041 0.001982

0.0009816

0.129032258064516 0.00241 0.002264 0.002116 0.002025 0.001957

0.0009799

0.161290322580645 0.002395 0.002249 0.002099 0.002025 0.001957

0.0009797

0.193548387096774 0.002378 0.002241 0.002087 0.00202 0.001949

0.00 09755

0.225806451612903 0.002376 0.002231 0.002075 0.002016 0.001946

0.0009678

0.258064516129032 0.002374 0.002229 0.002071 0.002001 0.001936

0.000963

0.290322580645161 0.00236 0.002213 0.002062 0.001996 0.001933

0.0009603

0.32258064516129 0.002359 0.00221 2 0.002051 0.001995 0.001929

0.0009567

0.354838709677419 0.002356 0.002211 0.002048 0.001988 0.001917

0.0009558

### − 29

**−**

0.387096774193548 0.002355 0.00221 0.002048 0.00198 0.001914 0.000955

0.419354838709677 0.002346 0.002206 0.002047 0.001979 0.00191

0.0009538

0.451612903225806 0.002342 0.002195 0.002044 0.00196 0.001897

0.0009532

0.483870967741936 0.002339 0.002194 0.00204 0.001958 0.001889

0.0009529

0.516129032258065 0.002333 0.002184 0.002034 0.001953 0.001887

0.0009524

0.548387096774194 0.002324 0.002179 0.0 02006 0.001953 0.001884

0.0009506

0.580645161290323 0.002316 0.00216 0.001995 0.001947 0.001883

0.0009503

0.612903225806452 0.002303 0.002159 0.001993 0.001925 0.001879

0.0009502

0.645161290322581 0.002302 0.002158 0.00199 0.001922 0.001875

0.0009501

0.67741935483871 0.002295 0.002149 0.001989 0.001921 0.001873

0.0009477

0.709677419354839 0.002293 0.002143 0.001987 0.001917 0.001867

0.0009475

0.741935483870968 0.002288 0.00214 0.001983 0.001909 0.001865

0.0009466

0.774193548387097 0.002285 0.002137 0.001974 0.001905 0.001855

0.0009437

0.806451612903226 0.002284 0.002137 0.001963 0.001904 0.001854

0.0009416

0.838709677419355 0.002265 0.002121 0.001961 0.001898 0.001849

0.0009405

0.870967741935484 0.002262 0.002116 0.001961 0.001898 0.001844

0 .0009368

0.903225806451613 0.002239 0.00209 0.001948 0.001895 0.001842

0.0009237

0.935483870967742 0.002233 0.002087 0.001929 0.001887 0.001841

0.0009152

0.967741935483871 0.002163 0.002017 0.001882 0.001882 0.001839

0.0009019

0.1 0.0024253 0.0022811 0.00 21214 0.0020394 0.0019795 0.00098143

Average of yearly averages: 0.000953436666666667

Inputs generated by pe4.pl

- 8

- August

- 2003

Data used for this run:

Output File: Prallethrin

Metfile: w14737.dvf

PRZM scenario: PAturfC.txt

EXAMS environment file: pond298.exv

Chemical Name: Prallethrin

Description Variable Name Value Units Comments

Molecular weight mwt 300 g/mol

Henry's Law Const. henry 1.72e

- 3 atm

- m^3/mol

Vapor Pressure vapr 3.50e

- 5 torr

Solubility sol 80.3 mg/L

Kd Kd mg/L

Koc Koc 2533 mg/L

Photol ysis half

- life kdp 0.57 days Half

- life

Aerobic Aquatic Metabolism kbacw 18 days Halfife

Anaerobic Aquatic Metabolism kbacs 37 days Halfife

### − 30

**−**

Aerobic Soil Metabolism asm 9 days Halfife

Hydrolysis: pH 5 0 days Half

- life

Hydrolysis: pH 7 0 days Half

- life

Hydrolysis: pH 9 4.9 days Half

- life

Method: CAM 2 integer See PRZM manual

Incorporation Depth: DEPI 0.0 cm

Application Rate: TAPP 0.0009 kg/ha

Application Efficiency: APPEFF 0.025 fraction

Spray Drift DRFT 0.125 fraction of application rate applied to pond

Application Date Date 01

- 04 dd/mm or dd/mmm or dd

- mm or dd

- mmm

Interval 1 interval 7 days Set to 0 or delete line for single app.

Interval 2 interval 7 days Set to 0 or delete line for single app.

Interval 3 interval 7 days Set to 0 or delete line for sin gle app.

Interval 4 interval 7 days Set to 0 or delete line for single app.

Interval 5 interval 7 days Set to 0 or delete line for single app.

Interval 6 interval 7 days Set to 0 or delete line for single app.

Interval 7 interval 7 days Set to 0 or delete line for single app.

Interval 8 interval 7 days Set to 0 or delete line for single app.

Interval 9 interval 7 days Set to 0 or delete line for single app.

Interval 10 interval 7 days Set to 0 or delete line for single app.

Interval 11 interval 7 days Set to 0 or delete line for single app.

Interval 12 interval 7 days Set to 0 or delete line for single app.

Interval 13 interval 7 days Set to 0 or delete line for single app.

Interval 14 interval 7 days Set to 0 or delete line for single app.

Interv al 15 interval 7 days Set to 0 or delete line for single app.

Interval 16 interval 7 days Set to 0 or delete line for single app.

Interval 17 interval 7 days Set to 0 or delete line for single app.

Interval 18 interval 7 days Set to 0 or delete line for si ngle app.

Interval 19 interval 7 days Set to 0 or delete line for single app.

Interval 20 interval 7 days Set to 0 or delete line for single app.

Interval 21 interval 7 days Set to 0 or delete line for single app.

Interval 22 interval 7 days Set to 0 or delete line for single app.

Interval 23 interval 7 days Set to 0 or delete line for single app.

Interval 24 interval 7 days Set to 0 or delete line for single app.

Interval 25 interval 7 days Set to 0 or delete line for single app.

Record 17: FILTRA

IPSCN D 3

UPTKF 0

Record 18: PLVKRT 0

PLDKRT 0

FEXTRC 0.5

Flag for Index Res. Run IR Pond

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



## 1 foot depth

Water column

stored as Prallet hrin.out

Chemical: Prallethrin

PRZM environment: PAturfC.txt modified Satday, 12 October 2002 at 17:27:02

EXAMS environment: pond298.exv modified Thuday, 29 August 2002 at 16:33:30

Metfile: w14737.dvf modified Wedday, 3 July 2002 at 09:06:12

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

### − 31

**−**

1961 0.007541 0.004468 0.003483 0.003435 0.003343 0.001705

1962 0.007608 0.004555 0.003566 0.003386 0.003309 0.00179

1963 0.007583 0.004517 0.003546 0.003405 0.003294 0.001783

1964 0.007356 0.004265 0.003296 0.003337 0.00327 0.00174

1965 0.007506 0.004434 0.003464 0.003341 0.003262 0.001726

1966 0.007573 0.004495 0.003515 0.003436 0.003274 0.001707

1967 0.00759 0.004532 0.003525 0.003421 0.00335 0.001785

1968 0.007658 0.004631 0.003619 0.0035 73 0.003423 0.001761

1969 0.007479 0.004392 0.003428 0.003362 0.00332 0.001765

1970 0.00743 0.004316 0.00337 0.003388 0.003295 0.001738

1971 0.007529 0.004464 0.003469 0.003409 0.003285 0.001735

1972 0.007503 0.004361 0.00343 0.003458 0.003353 0.001746

197 3 0.007573 0.004532 0.003517 0.003412 0.003265 0.001688

1974 0.007607 0.00455 0.003572 0.003442 0.00333 0.001765

1975 0.007613 0.00454 0.003514 0.003389 0.003296 0.001726

1976 0.00748 0.004347 0.003389 0.00328 0.003194 0.001689

1977 0.007451 0.004371 0.003 406 0.003309 0.003211 0.00172

1978 0.0075 0.004416 0.003454 0.003386 0.003288 0.001765

1979 0.007545 0.004476 0.003502 0.003504 0.003423 0.001754

1980 0.007364 0.004257 0.003295 0.003284 0.003164 0.001623

1981 0.00751 0.004435 0.00346 0.003289 0.003172 0.001723

1982 0.007532 0.004453 0.003491 0.003391 0.003304 0.001744

1983 0.007505 0.004426 0.003444 0.003389 0.00325 0.001659

1984 0.007506 0.004455 0.003453 0.003361 0.003253 0.001713

1985 0.007318 0.004174 0.003269 0.003276 0.003203 0.001689

198 6 0.007486 0.0044 0.003438 0.00333 0.003222 0.001705

1987 0.007545 0.004414 0.003467 0.003324 0.003219 0.001712

1988 0.00753 0.004456 0.003476 0.003354 0.003208 0.001677

1989 0.007488 0.004403 0.003431 0.003409 0.003313 0.001738

1990 0.007453 0.004387 0.00 3393 0.003339 0.003212 0.001676

Sorted results

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

0.032258064516129 0.007658 0.004631 0.003619 0.003573 0.003423

0.00179

0.0645161290322581 0.007613 0.004555 0.003572 0.003504 0.003423

0.001785

0.0967741935483871 0.007608 0.00455 0.003566 0.003458 0.003353

0.001783

0.129032258064516 0.007607 0.00454 0.003546 0.003442 0.00335 0.001765

0.161290322580645 0.00759 0.004532 0.003525 0.003436 0.003343

0.001765

0.193548387096774 0.007583 0.004532 0.003517 0.003435 0.00333

0.001765

0.225806451612903 0.007573 0.004517 0.003515 0.003421 0.00332

0.001761

0.258064516129032 0.007573 0.004495 0.003514 0.003412 0.003313

0.001754

0.290322580645161 0.007545 0.004476 0.003502 0.003409 0.003309

0.001746

0.32258064516129 0.007545 0.0044 68 0.003491 0.003409 0.003304

0.001744

0.354838709677419 0.007541 0.004464 0.003483 0.003405 0.003296

0.00174

0.387096774193548 0.007532 0.004456 0.003476 0.003391 0.003295

0.001738

0.419354838709677 0.00753 0.004455 0.003469 0.003389 0.003294

0.001738

0.451612903225806 0.007529 0.004453 0.003467 0.003389 0.003288

### − 32

**−**

0.001735

0.483870967741936 0.00751 0.004435 0.003464 0.003388 0.003285

0.001726

0.516129032258065 0.007506 0.004434 0.00346 0.003386 0.003274

0.001726

0.548387096774194 0.007506 0.004426 0.0034 54 0.003386 0.00327

0.001723

0.580645161290323 0.007505 0.004416 0.003453 0.003362 0.003265

0.00172

0.612903225806452 0.007503 0.004414 0.003444 0.003361 0.003262

0.001713

0.645161290322581 0.0075 0.004403 0.003438 0.003354 0.003253

0.001712

0.677419354838 71 0.007488 0.0044 0.003431 0.003341 0.00325 0.001707

0.709677419354839 0.007486 0.004392 0.00343 0.003339 0.003222

0.001705

0.741935483870968 0.00748 0.004387 0.003428 0.003337 0.003219

0.001705

0.774193548387097 0.007479 0.004371 0.003406 0.00333 0.00321 2

0.001689

0.806451612903226 0.007453 0.004361 0.003393 0.003324 0.003211

0.001689

0.838709677419355 0.007451 0.004347 0.003389 0.003309 0.003208

0.001688

0.870967741935484 0.00743 0.004316 0.00337 0.003289 0.003203 0.001677

0.903225806451613 0. 007364 0.004265 0.003296 0.003284 0.003194

0.001676

0.935483870967742 0.007356 0.004257 0.003295 0.00328 0.003172

0.001659

0.967741935483871 0.007318 0.004174 0.003269 0.003276 0.003164

0.001623

0.1 0.0076079 0.004549 0.003564 0.0034564 0.0033527 0.001781 2

Average of yearly averages: 0.0017249

Inputs generated by pe4.pl

- 8

- August

- 2003

Data used for this run:

Output File: Prallethrin

Metfile: w14737.dvf

PRZM scenario: PAturfC.txt

EXAMS environment file: pond298.exv

Chemical Name: Prallethrin

Description Variable Name Value Units Comments

Molecular weight mwt 300 g/mol

Henry's Law Const. henry 1.72e

- 3 atm

- m^3/mol

Vapor Pressure vapr 3.50e

- 5 torr

Solubility sol 80.3 mg/L

Kd Kd mg/L

Koc Koc 2533 mg/L

Photolysis half

- life kdp 0.57 days Half

- life

Aerobic Aqua tic Metabolism kbacw 18 days Halfife

Anaerobic Aquatic Metabolism kbacs 37 days Halfife

Aerobic Soil Metabolism asm 9 days Halfife

Hydrolysis: pH 5 0 days Half

- life

Hydrolysis: pH 7 0 days Half

- life

Hydrolysis: pH 9 4.9 days Half

- life

Method: CAM 2 integer See PRZM manual

Incorporation Depth: DEPI 0.0 cm

### − 33

**−**

Application Rate: TAPP 0.0009 kg/ha

Application Efficiency: APPEFF 0.025 fraction

Spray Drift DRFT 0.125 fraction of application rate applied to pond

Application Date Date 01

- 04 dd/mm or dd/mmm or dd

- mm or dd

- mmm

Interval 1 interval 7 days Set to 0 or delete line for single app.

Interval 2 interval 7 days Set to 0 or delete line for single app.

Interval 3 interval 7 days Set to 0 or delete line for single app.

Interval 4 interval 7 days Set to 0 or delete li ne for single app.

Interval 5 interval 7 days Set to 0 or delete line for single app.

Interval 6 interval 7 days Set to 0 or delete line for single app.

Interval 7 interval 7 days Set to 0 or delete line for single app.

Interval 8 interval 7 days Set to 0 or delete line for single app.

Interval 9 interval 7 days Set to 0 or delete line for single app.

Interval 10 interval 7 days Set to 0 or delete line for single app.

Interval 11 interval 7 days Set to 0 or delete line for single app.

Interval 12 interval 7 days Set to 0 or delete line for single app.

Interval 13 interval 7 days Set to 0 or delete line for single app.

Interval 14 interval 7 days Set to 0 or delete line for single app.

Interval 15 interval 7 days Set to 0 or delete line for single app.

Interv al 16 interval 7 days Set to 0 or delete line for single app.

Interval 17 interval 7 days Set to 0 or delete line for single app.

Interval 18 interval 7 days Set to 0 or delete line for single app.

Interval 19 interval 7 days Set to 0 or delete line for single app.

Interval 20 interval 7 days Set to 0 or delete line for single app.

Interval 21 interval 7 days Set to 0 or delete line for single app.

Interval 22 interval 7 days Set to 0 or delete line for single app.

Interval 23 interval 7 days Set to 0 or delete line for single app.

Interval 24 interval 7 days Set to 0 or delete line for single app.

Interval 25 interval 7 days Set to 0 or delete line for single app.

Record 17: FILTRA

IPSCND 3

UPTKF 0

Record 18: PLVKRT 0

PLDKRT 0

FEXTRC 0.5

Flag for Index Res. Run IR Pond

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



## Pore water

stored as Prallethrinben.out

Chemical: Prallethrin

PRZM environment: PAturfC.txt modified Satday, 12 October 2002 at 17:27:02

EXAMS environment: pond298.exv modified Thuday, 29 August 2002 at 16:33:30

Metfile: w14737.dvf modified Wedday, 3 July 2002 at 09:06:12

Benthic segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.00309 0.00305 0.002 935 0.002828 0.00276 0.001425

1962 0.003133 0.003093 0.002938 0.002744 0.002705 0.001519

1963 0.003117 0.003077 0.00293 0.002788 0.002711 0.001517

1964 0.002876 0.002837 0.002752 0.00273 0.002687 0.001477

1965 0.002996 0.002956 0.002824 0.002688 0.002649 0.001459

1966 0.003142 0.003102 0.002976 0.002831 0.0027 0.00144

1967 0.003157 0.003117 0.00298 0.002824 0.002775 0.00153

1968 0.003204 0.003159 0.003058 0.002953 0.002838 0.001486

1969 0.002997 0.002957 0.002827 0.002716 0.002707 0.001494

### − 34

**−**

1970 0.002955 0. 00291 0.002826 0.002781 0.002716 0.001469

1971 0.003068 0.003028 0.00291 0.002794 0.00271 0.001471

1972 0.003014 0.002971 0.002886 0.002847 0.002767 0.00148

1973 0.003122 0.003082 0.00295 0.0028 0.002684 0.00142

1974 0.003122 0.003082 0.002941 0.002831 0.0 02744 0.001498

1975 0.003085 0.003044 0.002887 0.00275 0.002693 0.001457

1976 0.002958 0.002918 0.002783 0.002651 0.002601 0.001425

1977 0.002937 0.002897 0.002772 0.002619 0.002575 0.001445

1978 0.003015 0.002976 0.00285 0.002739 0.002676 0.001495

1979 0. 003057 0.003012 0.002923 0.002868 0.002815 0.001482

1980 0.002873 0.002834 0.00274 0.002675 0.002582 0.001346

1981 0.003019 0.002979 0.002836 0.002656 0.002576 0.001454

1982 0.003046 0.003006 0.002883 0.002757 0.002709 0.001488

1983 0.003046 0.003007 0.002 89 0.002778 0.002667 0.001387

1984 0.003063 0.003022 0.002895 0.00275 0.00267 0.001444

1985 0.00283 0.002789 0.002708 0.002673 0.002628 0.001418

1986 0.002999 0.002959 0.002833 0.002674 0.002604 0.001443

1987 0.003006 0.002967 0.002839 0.002664 0.002593 0. 001443

1988 0.003049 0.003009 0.002887 0.002747 0.002629 0.001408

1989 0.003027 0.002987 0.002879 0.002793 0.002729 0.00147

1990 0.002999 0.002959 0.002844 0.002737 0.002642 0.001418

Sorted results

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

0.032258064516129 0.003204 0.003159 0.003058 0.002953 0.002838

0.00153

0.0645161290322581 0.003157 0.003117 0.00298 0.002868 0.002815

0.001519

0.0967741935483871 0.003142 0.003102 0.002976 0.002847 0.002775

0.001517

0.129032258064516 0.003133 0.003093 0.00 295 0.002831 0.002767

0.001498

0.161290322580645 0.003122 0.003082 0.002941 0.002831 0.00276

0.001495

0.193548387096774 0.003122 0.003082 0.002938 0.002828 0.002744

0.001494

0.225806451612903 0.003117 0.003077 0.002935 0.002824 0.002729

0.001488

0.25806451 6129032 0.00309 0.00305 0.00293 0.0028 0.002716 0.001486

0.290322580645161 0.003085 0.003044 0.002923 0.002794 0.002711

0.001482

0.32258064516129 0.003068 0.003028 0.00291 0.002793 0.00271 0.00148

0.354838709677419 0.003063 0.003022 0.002895 0.002788 0.002 709

0.001477

0.387096774193548 0.003057 0.003012 0.00289 0.002781 0.002707

0.001471

0.419354838709677 0.003049 0.003009 0.002887 0.002778 0.002705

0.00147

0.451612903225806 0.003046 0.003007 0.002887 0.002757 0.0027

0.001469

0.483870967741936 0.003046 0.00 3006 0.002886 0.00275 0.002693

0.001459

0.516129032258065 0.003027 0.002987 0.002883 0.00275 0.002687

0.001457

0.548387096774194 0.003019 0.002979 0.002879 0.002747 0.002684

0.001454

0.580645161290323 0.003015 0.002976 0.00285 0.002744 0.002676

0.001445

0. 612903225806452 0.003014 0.002971 0.002844 0.002739 0.00267

### − 35

**−**

0.001444

0.645161290322581 0.003006 0.002967 0.002839 0.002737 0.002667

0.001443

0.67741935483871 0.002999 0.002959 0.002836 0.00273 0.002649

0.001443

0.709677419354839 0.002999 0.002959 0.002833 0.002716 0.002642

0.00144

0.741935483870968 0.002997 0.002957 0.002827 0.002688 0.002629

0.001425

0.774193548387097 0.002996 0.002956 0.002826 0.002675 0.002628

0.001425

0.806451612903226 0.002958 0.002918 0.002824 0.002674 0.002604

0.00142

0.8387096774193 55 0.002955 0.00291 0.002783 0.002673 0.002601

0.001418

0.870967741935484 0.002937 0.002897 0.002772 0.002664 0.002593

0.001418

0.903225806451613 0.002876 0.002837 0.002752 0.002656 0.002582

0.001408

0.935483870967742 0.002873 0.002834 0.00274 0.002651 0.0 02576

0.001387

0.967741935483871 0.00283 0.002789 0.002708 0.002619 0.002575

0.001346

0.1 0.0031411 0.0031011 0.0029734 0.0028454 0.0027742 0.0015151

Average of yearly averages: 0.00145693333333333

Inputs generated by pe4.pl

- 8

- August

- 2003

Da ta used for this run:

Output File: Prallethrin

Metfile: w14737.dvf

PRZM scenario: PAturfC.txt

EXAMS environment file: pond298.exv

Chemical Name: Prallethrin

Description Variable Name Value Units Comments

Molecular weight mwt 300 g/mol

Henry's Law Const. henry 1.72e

- 3 atm

- m^3/mol

Vapor Pressure vapr 3.50e

- 5 torr

Solubility sol 80.3 mg/L

Kd Kd mg/L

Koc Koc 2533 mg/L

Photolysis half

- life kdp 0.57 days Half

- life

Aerobic Aquatic Metabolism kbacw 18 days Halfife

Anaerobic Aquatic Metabolism kbacs 37 days Halfi fe

Aerobic Soil Metabolism asm 9 days Halfife

Hydrolysis: pH 5 0 days Half

- life

Hydrolysis: pH 7 0 days Half

- life

Hydrolysis: pH 9 4.9 days Half

- life

Method: CAM 2 integer See PRZM manual

Incorporation Depth: DEPI 0.0 cm

Application Rate: TAPP 0.0009 kg/ha

Application Efficiency: APPEFF 0.025 fraction

Spray Drift DRFT 0.125 fraction of application rate applied to pond

Application Date Date 01

- 04 dd/mm or dd/mmm or dd

- mm or dd

- mmm

Interval 1 interval 7 days Set to 0 or delete line for single app.

Interval 2 interval 7 days Set to 0 or delete line for single app.

Interval 3 interval 7 days Set to 0 or delete line for single app.

Interval 4 interval 7 days Set to 0 or delete line for single app.

Interval 5 interval 7 days Set to 0 or delete line for single app.

### − 36

**−**

Interval 6 interval 7 days Set to 0 or delete line for single app.

Interval 7 interval 7 days Set to 0 or delete line for single app.

Interval 8 interval 7 days Set to 0 or delete line for single app.

Interval 9 interval 7 days Set to 0 or delete line for single app.

Interval 10 interval 7 days Set to 0 or delete line for single app.

Interval 11 interval 7 days Set to 0 or delete line for single app.

Interval 12 interval 7 days Set to 0 or delete line for single app.

Interval 13 interval 7 days Set to 0 or delete line for single app.

Interval 14 interval 7 days Set to 0 or delete line for single app.

Interval 15 interval 7 days Set to 0 or delete line for single app.

Interval 16 interval 7 days Set to 0 or delete line for single app.

Interval 17 interval 7 days Set to 0 or delete line for single app.

Interval 18 interval 7 days Set to 0 or delete line for single app.

Interval 19 interval 7 days Set to 0 or delete line for single app.

Interval 20 interval 7 days Set to 0 or delete line for single app.

Interva l 21 interval 7 days Set to 0 or delete line for single app.

Interval 22 interval 7 days Set to 0 or delete line for single app.

Interval 23 interval 7 days Set to 0 or delete line for single app.

Interval 24 interval 7 days Set to 0 or delete line for sin gle app.

Interval 25 interval 7 days Set to 0 or delete line for single app.

Record 17: FILTRA

IPSCND 3

UPTKF 0

Record 18: PLVKRT 0

PLDKRT 0

FEXTRC 0.5

Flag for Index Res. Run IR Pond

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



## 1 meter depth

Water column

stored as Prallethrin.out

Chemical: Prallethrin

PRZM environment: PAturfC.txt modified Satday, 12 October 2002 at 17:27:02

EXAMS environment: pond298.ex v modified Thuday, 29 August 2002 at 16:33:30

Metfile: w14737.dvf modified Wedday, 3 July 2002 at 09:06:12

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.007878 0.005465 0.00432 0.004281 0.0042 0.002193

1962 0.008198 0.005821 0.00467 0.004371 0.004257 0.002364

1963 0.008182 0.005794 0.004663 0.004392 0.00427 0.002377

1964 0.007917 0.005546 0.004308 0.004294 0.004219 0.002304

1965 0.00802 0.005614 0.004485 0.004288 0.004189 0.002268

1966 0.00794 0.005527 0.004384 0.004342 0.004169 0.002224

1967 0.007979 0.005583 0.00442 0.004353 0.004259 0.002322

1968 0.008093 0.005739 0.004566 0.004495 0.004346 0.002328

1969 0.008044 0.005637 0.004508 0.004358 0.004268 0.00233

1970 0.007793 0.005345 0.004228 0.004261 0.004164 0.00 2284

1971 0.007943 0.005544 0.00439 0.004302 0.004167 0.002257

1972 0.007874 0.005512 0.0043 0.004331 0.004231 0.002258

1973 0.007913 0.005527 0.004356 0.004227 0.004079 0.002183

1974 0.00812 0.005726 0.004594 0.0044 0.004248 0.002289

1975 0.008058 0.00565 8 0.004469 0.004265 0.004177 0.002218

1976 0.007958 0.005503 0.004376 0.004205 0.004067 0.002182

1977 0.007849 0.005418 0.004301 0.004205 0.004076 0.002241

### − 37

**−**

1978 0.008046 0.00564 0.004513 0.004376 0.004235 0.002314

1979 0.007971 0.005564 0.004422 0.004415 0 .004332 0.002281

1980 0.007709 0.005263 0.004138 0.004143 0.004024 0.002116

1981 0.007949 0.005528 0.004401 0.004198 0.004035 0.002229

1982 0.008039 0.005626 0.004505 0.004368 0.004236 0.002275

1983 0.007859 0.005443 0.004302 0.004274 0.00413 0.002169

1984 0.007927 0.005509 0.004376 0.004235 0.004099 0.00222

1985 0.007738 0.005279 0.004226 0.004153 0.004079 0.002193

1986 0.007922 0.005494 0.004374 0.004228 0.00409 0.002218

1987 0.008072 0.005605 0.00449 0.004283 0.004146 0.002239

1988 0.007963 0.005547 0.00 4407 0.004267 0.004088 0.002198

1989 0.00785 0.005384 0.004265 0.004253 0.004152 0.002246

1990 0.007903 0.005477 0.004348 0.004162 0.004026 0.00215

Sorted results

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

0.032258064516129 0.008198 0.005821 0.00467 0.004495 0.004346

0.002377

0.0645161290322581 0.008182 0.005794 0.004663 0.004415 0.004332

0.002364

0.0967741935483871 0.00812 0.005739 0.004594 0.0044 0.00427 0.00233

0.129032258064516 0.008093 0.005726 0.004566 0.004392 0.004268

0.002328

0.161 290322580645 0.008072 0.005658 0.004513 0.004376 0.004259

0.002322

0.193548387096774 0.008058 0.00564 0.004508 0.004371 0.004257

0.002314

0.225806451612903 0.008046 0.005637 0.004505 0.004368 0.004248

0.002304

0.258064516129032 0.008044 0.005626 0.00449 0. 004358 0.004236

0.002289

0.290322580645161 0.008039 0.005614 0.004485 0.004353 0.004235

0.002284

0.32258064516129 0.00802 0.005605 0.004469 0.004342 0.004231

0.002281

0.354838709677419 0.007979 0.005583 0.004422 0.004331 0.004219

0.002275

0.387096774193548 0.007971 0.005564 0.00442 0.004302 0.0042 0.002268

0.419354838709677 0.007963 0.005547 0.004407 0.004294 0.004189

0.002258

0.451612903225806 0.007958 0.005546 0.004401 0.004288 0.004177

0.002257

0.483870967741936 0.007949 0.005544 0.00439 0.004283 0.00416 9

0.002246

0.516129032258065 0.007943 0.005528 0.004384 0.004281 0.004167

0.002241

0.548387096774194 0.00794 0.005527 0.004376 0.004274 0.004164

0.002239

0.580645161290323 0.007927 0.005527 0.004376 0.004267 0.004152

0.002229

0.612903225806452 0.007922 0.0 05512 0.004374 0.004265 0.004146

0.002224

0.645161290322581 0.007917 0.005509 0.004356 0.004261 0.00413 0.00222

0.67741935483871 0.007913 0.005503 0.004348 0.004253 0.004099

0.002218

0.709677419354839 0.007903 0.005494 0.00432 0.004235 0.00409 0.002218

0.7 41935483870968 0.007878 0.005477 0.004308 0.004228 0.004088

0.002198

0.774193548387097 0.007874 0.005465 0.004302 0.004227 0.004079

### − 38

**−**

0.002193

0.806451612903226 0.007859 0.005443 0.004301 0.004205 0.004079

0.002193

0.838709677419355 0.00785 0.005418 0.0043 0.004205 0.004076 0.002183

0.870967741935484 0.007849 0.005384 0.004265 0.004198 0.004067

0.002182

0.903225806451613 0.007793 0.005345 0.004228 0.004162 0.004035

0.002169

0.935483870967742 0.007738 0.005279 0.004226 0.004153 0.004026

0.00215

0.967741935483 871 0.007709 0.005263 0.004138 0.004143 0.004024

0.002116

0.1 0.0081173 0.0057377 0.0045912 0.0043992 0.0042698 0.0023298

Average of yearly averages: 0.002249

Inputs generated by pe4.pl

- 8

- August

- 2003

Data used for this run:

Output File: Prallethrin

Me tfile: w14737.dvf

PRZM scenario: PAturfC.txt

EXAMS environment file: pond298.exv

Chemical Name: Prallethrin

Description Variable Name Value Units Comments

Molecular weight mwt 300 g/mol

Henry's Law Const. henry 1.72e

- 3 atm

- m^3/mol

Vapor Pressure vapr 3.50e

- 5 torr

Solubility sol 80.3 mg/L

Kd Kd mg/L

Koc Koc 2533 mg/L

Photolysis half

- life kdp 0.57 days Half

- life

Aerobic Aquatic Metabolism kbacw 18 days Halfife

Anaerobic Aquatic Metabolism kbacs 37 days Halfife

Aerobic Soil Metabolism asm 9 days Ha lfife

Hydrolysis: pH 5 0 days Half

- life

Hydrolysis: pH 7 0 days Half

- life

Hydrolysis: pH 9 4.9 days Half

- life

Method: CAM 2 integer See PRZM manual

Incorporation Depth: DEPI 0.0 cm

Application Rate: TAPP 0.0009 kg/ha

Application Efficiency: APPEFF 0.025 fr action

Spray Drift DRFT 0.125 fraction of application rate applied to pond

Application Date Date 01

- 04 dd/mm or dd/mmm or dd

- mm or dd

- mmm

Interval 1 interval 7 days Set to 0 or delete line for single app.

Interval 2 interval 7 days Set to 0 or delete line for single app.

Interval 3 interval 7 days Set to 0 or delete line for single app.

Interval 4 interval 7 days Set to 0 or delete line for single app.

Interval 5 interval 7 days Set to 0 or delete line for single app.

Interval 6 interval 7 days Set to 0 or delete line for single app.

Interval 7 interval 7 days Set to 0 or delete line for single app.

Interval 8 interval 7 days Set to 0 or delete line for single app.

Interval 9 interval 7 days Set to 0 or delete line for single app.

Interval 10 interval 7 days Set to 0 or delete line for single app.

Interval 11 interval 7 days Set to 0 or delete line for single app.

Interval 12 interval 7 days Set to 0 or delete line for single app.

Interval 13 interval 7 days Set to 0 or delete line for single app.

Interval 14 interval 7 days Set to 0 or delete line for single app.

Interval 15 interval 7 days Set to 0 or delete line for single app.

### − 39

**−**

Interval 16 interval 7 days Set to 0 or delete line for single app.

Interval 17 interval 7 days Set to 0 or delete line for single app.

Interval 18 interval 7 days Set to 0 or delete line for single app.

Interval 19 interval 7 days Set to 0 or delete line for single app.

Interval 20 interval 7 days Set to 0 or delete line for single app.

Interval 21 interval 7 days Set to 0 or delete line for single app.

Interval 22 interval 7 days Set to 0 or delete line for single app.

Interval 23 interval 7 days Set to 0 or delete line for single app.

Interval 24 interval 7 days Set to 0 or delete line for single app.

Interval 25 interval 7 days Set to 0 or delete line for single app.

Record 17: FILTRA

IPSCND 3

UPTKF 0

Record 18: PLVKRT 0

PLDKRT 0

FEXTRC 0.5

Flag for Index Res. Run IR Pond

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



## Pore water

stored as Prallethrinben.out

Chemical: Prallethrin

PRZM environment: PAturfC.txt modified Satday, 12 October 2002 at 17:27:02

EXAMS environment: pond298.exv modified Thuday, 29 August 2002 at 16:33:30

Metfile: w14737.dvf modified Wedday, 3 J uly 2002 at 09:06:12

Benthic segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.002798 0.002781 0.002739 0.002683 0.002637 0.001448

1962 0.003069 0.003056 0.002942 0.002745 0.002697 0.001649

1963 0.003074 0.003061 0.00295 0.00 2748 0.002689 0.001672

1964 0.002804 0.002788 0.002735 0.002672 0.002638 0.001618

1965 0.002884 0.002869 0.002782 0.002646 0.002617 0.001571

1966 0.002885 0.00287 0.002812 0.002692 0.002575 0.001534

1967 0.002995 0.002978 0.002905 0.002778 0.002724 0.00166 1

1968 0.002985 0.002968 0.00293 0.002851 0.002755 0.001606

1969 0.002955 0.002941 0.002849 0.002707 0.002672 0.001623

1970 0.002781 0.002765 0.002731 0.002683 0.002624 0.001586

1971 0.002827 0.002811 0.002762 0.002688 0.002631 0.00157

1972 0.002833 0.0028 17 0.00278 0.002723 0.002652 0.001572

1973 0.002803 0.002786 0.002731 0.002622 0.002536 0.001495

1974 0.003005 0.002992 0.002892 0.002713 0.002667 0.001596

1975 0.002936 0.002924 0.002814 0.002637 0.002604 0.001532

1976 0.002855 0.002841 0.002747 0.00259 0.00253 0.001503

1977 0.002758 0.002742 0.002664 0.002527 0.002481 0.001539

1978 0.002937 0.002923 0.00283 0.002668 0.002618 0.001609

1979 0.00285 0.002834 0.002802 0.002766 0.002718 0.001577

1980 0.002647 0.002631 0.002601 0.002539 0.002453 0.001407

1981 0.00287 0.002856 0.002759 0.002577 0.002496 0.001535

1982 0.002973 0.002957 0.002877 0.002737 0.002684 0.001611

1983 0.002767 0.002751 0.00271 0.002635 0.002545 0.001466

1984 0.002824 0.002812 0.002706 0.002595 0.00254 0.001528

1985 0.002729 0.002718 0.002 653 0.002561 0.00255 0.001495

1986 0.002865 0.00285 0.002765 0.00261 0.002538 0.001545

1987 0.002895 0.00288 0.00279 0.002614 0.002539 0.001544

1988 0.002796 0.00278 0.002726 0.00262 0.002509 0.001503

### − 40

**−**

1989 0.002792 0.002775 0.002703 0.002648 0.002606 0.001 557

1990 0.002825 0.002812 0.002712 0.002572 0.002502 0.001492

Sorted results

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

0.032258064516129 0.003074 0.003061 0.00295 0.002851 0.002755

0.001672

0.0645161290322581 0.003069 0.003056 0.002942 0.002778 0.0027 24

0.001661

0.0967741935483871 0.003005 0.002992 0.00293 0.002766 0.002718

0.001649

0.129032258064516 0.002995 0.002978 0.002905 0.002748 0.002697

0.001623

0.161290322580645 0.002985 0.002968 0.002892 0.002745 0.002689

0.001618

0.193548387096774 0.002973 0.002957 0.002877 0.002737 0.002684

0.001611

0.225806451612903 0.002955 0.002941 0.002849 0.002723 0.002672

0.001609

0.258064516129032 0.002937 0.002924 0.00283 0.002713 0.002667

0.001606

0.290322580645161 0.002936 0.002923 0.002814 0.002707 0.002652

0.001 596

0.32258064516129 0.002895 0.00288 0.002812 0.002692 0.002638

0.001586

0.354838709677419 0.002885 0.00287 0.002802 0.002688 0.002637

0.001577

0.387096774193548 0.002884 0.002869 0.00279 0.002683 0.002631

0.001572

0.419354838709677 0.00287 0.0 02856 0.002782 0.002683 0.002624

0.001571

0.451612903225806 0.002865 0.00285 0.00278 0.002672 0.002618 0.00157

0.483870967741936 0.002855 0.002841 0.002765 0.002668 0.002617

0.001557

0.516129032258065 0.00285 0.002834 0.002762 0.002648 0.002606

0.001545

0. 548387096774194 0.002833 0.002817 0.002759 0.002646 0.002604

0.001544

0.580645161290323 0.002827 0.002812 0.002747 0.002637 0.002575

0.001539

0.612903225806452 0.002825 0.002812 0.002739 0.002635 0.00255

0.001535

0.645161290322581 0.002824 0.002811 0.00273 5 0.002622 0.002545

0.001534

0.67741935483871 0.002804 0.002788 0.002731 0.00262 0.00254 0.001532

0.709677419354839 0.002803 0.002786 0.002731 0.002614 0.002539

0.001528

0.741935483870968 0.002798 0.002781 0.002726 0.00261 0.002538

0.001503

0.7741935483870 97 0.002796 0.00278 0.002712 0.002595 0.002536

0.001503

0.806451612903226 0.002792 0.002775 0.00271 0.00259 0.00253 0.001495

0.838709677419355 0.002781 0.002765 0.002706 0.002577 0.002509

0.001495

0.870967741935484 0.002767 0.002751 0.002703 0.002572 0.002 502

0.001492

0.903225806451613 0.002758 0.002742 0.002664 0.002561 0.002496

0.001466

0.935483870967742 0.002729 0.002718 0.002653 0.002539 0.002481

### − 41

**−**

0.001448

0.967741935483871 0.002647 0.002631 0.002601 0.002527 0.002453

0.001407

0.1 0.003004 0.0029906 0.0029275 0.0027642 0.0027159 0.0016464

Average of yearly averages: 0.0015548

Inputs generated by pe4.pl

- 8

- August

- 2003

Data used for this run:

Output File: Prallethrin

Metfile: w14737.dvf

PRZM scenario: PAturfC.txt

EXAMS environment file: pond298.exv

C hemical Name: Prallethrin

Description Variable Name Value Units Comments

Molecular weight mwt 300 g/mol

Henry's Law Const. henry 1.72e

- 3 atm

- m^3/mol

Vapor Pressure vapr 3.50e

- 5 torr

Solubility sol 80.3 mg/L

Kd Kd mg/L

Koc Koc 2533 mg/L

Photolysis half

- lif e kdp 0.57 days Half

- life

Aerobic Aquatic Metabolism kbacw 18 days Halfife

Anaerobic Aquatic Metabolism kbacs 37 days Halfife

Aerobic Soil Metabolism asm 9 days Halfife

Hydrolysis: pH 5 0 days Half

- life

Hydrolysis: pH 7 0 days Half

- life

Hydrolysis: pH 9 4.9 days Half

- life

Method: CAM 2 integer See PRZM manual

Incorporation Depth: DEPI 0.0 cm

Application Rate: TAPP 0.0009 kg/ha

Application Efficiency: APPEFF 0.025 fraction

Spray Drift DRFT 0.125 fraction of application rate applied to pond

Application Date Date 01

- 04 dd/mm or dd/mmm or dd

- mm or dd

- mmm

Interval 1 interval 7 days Set to 0 or delete line for single app.

Interval 2 interval 7 days Set to 0 or delete line for single app.

Interval 3 interval 7 days Set to 0 or delete line for sin gle app.

Interval 4 interval 7 days Set to 0 or delete line for single app.

Interval 5 interval 7 days Set to 0 or delete line for single app.

Interval 6 interval 7 days Set to 0 or delete line for single app.

Interval 7 interval 7 days Set to 0 or delete line for single app.

Interval 8 interval 7 days Set to 0 or delete line for single app.

Interval 9 interval 7 days Set to 0 or delete line for single app.

Interval 10 interval 7 days Set to 0 or delete line for single app.

Interval 11 interval 7 days Set t o 0 or delete line for single app.

Interval 12 interval 7 days Set to 0 or delete line for single app.

Interval 13 interval 7 days Set to 0 or delete line for single app.

Interval 14 interval 7 days Set to 0 or delete line for single app.

Interval 15 inter val 7 days Set to 0 or delete line for single app.

Interval 16 interval 7 days Set to 0 or delete line for single app.

Interval 17 interval 7 days Set to 0 or delete line for single app.

Interval 18 interval 7 days Set to 0 or delete line for single app.

Interval 19 interval 7 days Set to 0 or delete line for single app.

Interval 20 interval 7 days Set to 0 or delete line for single app.

Interval 21 interval 7 days Set to 0 or delete line for single app.

Interval 22 interval 7 days Set to 0 or delete line for single app.

Interval 23 interval 7 days Set to 0 or delete line for single app.

Interval 24 interval 7 days Set to 0 or delete line for single app.

### − 42

**−**

Interval 25 interval 7 days Set to 0 or delete line for single app.

Record 17: FILTRA

IPSCND 3

UPTKF 0

Record 18: PLVKRT 0

PLDKRT 0

FEXTRC 0.5

Flag for Index Res. Run IR Pond

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



## 2 meters pond depth (standard pond)

Water column

stored as Prallethrin.out

Chemical: Prallethrin

PRZM environment: PAturfC.txt modified Satday, 12 October 2002 at 17:27:02

EXAMS environment: pond298.exv modified Thuday, 29 August 2002 at 16:33:30

Metfile: w14737.dvf modified Wedday, 3 July 2002 at 09:06:12

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.008355 0.006144 0.00498 0.004975 0.004846 0.002509

1962 0.008826 0.006662 0.005464 0.005043 0.004906 0.002711

1963 0.008821 0.006647 0.005472 0.005 093 0.004943 0.002735

1964 0.008768 0.006585 0.005313 0.005098 0.004971 0.002652

1965 0.008622 0.006424 0.005206 0.004966 0.004844 0.002611

1966 0.008592 0.006422 0.005183 0.00511 0.004882 0.002538

1967 0.008502 0.006307 0.005126 0.004989 0.0048 71 0.002643

1968 0.008668 0.006515 0.005326 0.005263 0.005084 0.002687

1969 0.008644 0.006454 0.005282 0.005051 0.004921 0.002672

1970 0.008371 0.006174 0.004959 0.004962 0.004843 0.002611

1971 0.008489 0.006294 0.005118 0.004983 0.004826 0.002579

1972 0.0 08728 0.006553 0.005285 0.005113 0.004939 0.002579

1973 0.008396 0.006211 0.005021 0.004888 0.004705 0.002491

1974 0.008678 0.006492 0.005323 0.005061 0.004868 0.002618

1975 0.008551 0.006363 0.005133 0.004873 0.004775 0.002527

1976 0.008476 0.006241 0.005 071 0.004839 0.004658 0.002482

1977 0.008301 0.006073 0.004923 0.004814 0.004662 0.002551

1978 0.008641 0.006451 0.005282 0.005063 0.004886 0.002651

1979 0.008522 0.006348 0.005154 0.00517 0.005045 0.002614

1980 0.008298 0.006093 0.004877 0.004858 0.004702 0.002424

1981 0.008436 0.00622 0.005057 0.004849 0.004668 0.002533

1982 0.008574 0.006371 0.005211 0.005033 0.004869 0.002592

1983 0.00836 0.006147 0.004984 0.004964 0.004821 0.002489

1984 0.008501 0.006299 0.005122 0.004973 0.004764 0.002538

1985 0.00822 3 0.005981 0.004892 0.004769 0.004675 0.002505

1986 0.008404 0.006183 0.005027 0.004837 0.004675 0.002527

1987 0.008605 0.006369 0.005219 0.004946 0.004782 0.002569

1988 0.008542 0.00632 0.005151 0.005047 0.004793 0.00252

1989 0.008528 0.006339 0.005095 0. 004987 0.004818 0.002556

1990 0.008425 0.006211 0.005041 0.004865 0.004675 0.002449

Sorted results

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

0.032258064516129 0.008826 0.006662 0.005472 0.005263 0.005084

### − 43

**−**

0.002735

0.0645161290322581 0.008821 0.006647 0. 005464 0.00517 0.005045

0.002711

0.0967741935483871 0.008768 0.006585 0.005326 0.005113 0.004971

0.002687

0.129032258064516 0.008728 0.006553 0.005323 0.00511 0.004943

0.002672

0.161290322580645 0.008678 0.006515 0.005313 0.005098 0.004939

0.002652

0.19354 8387096774 0.008668 0.006492 0.005285 0.005093 0.004921

0.002651

0.225806451612903 0.008644 0.006454 0.005282 0.005063 0.004906

0.002643

0.258064516129032 0.008641 0.006451 0.005282 0.005061 0.004886

0.002618

0.290322580645161 0.008622 0.006424 0.005219 0. 005051 0.004882

0.002614

0.32258064516129 0.008605 0.006422 0.005211 0.005047 0.004871

0.002611

0.354838709677419 0.008592 0.006371 0.005206 0.005043 0.004869

0.002611

0.387096774193548 0.008574 0.006369 0.005183 0.005033 0.004868

0.002592

0.419354838709677 0.008551 0.006363 0.005154 0.004989 0.004846

0.002579

0.451612903225806 0.008542 0.006348 0.005151 0.004987 0.004844

0.002579

0.483870967741936 0.008528 0.006339 0.005133 0.004983 0.004843

0.002569

0.516129032258065 0.008522 0. 00632 0.005126 0.004975 0.004826

0.002556

0.548387096774194 0.008502 0.006307 0.005122 0.004973 0.004821

0.002551

0.580645161290323 0.008501 0.006299 0.005118 0.004966 0.004818

0.002538

0.612903225806452 0.008489 0.006294 0.005095 0.004964 0.004793

0.00253 8

0.645161290322581 0.008476 0.006241 0.005071 0.004962 0.004782

0.002533

0.67741935483871 0.008436 0.00622 0.005057 0.004946 0.004775

0.002527

0.709677419354839 0.008425 0.006211 0.005041 0.004888 0.004764

0.002527

0.741935483870968 0.008404 0.006211 0.00 5027 0.004873 0.004705

0.00252

0.774193548387097 0.008396 0.006183 0.005021 0.004865 0.004702

0.002509

0.806451612903226 0.008371 0.006174 0.004984 0.004858 0.004675

0.002505

0.838709677419355 0.00836 0.006147 0.00498 0.004849 0.004675 0.002491

0.870967741 935484 0.008355 0.006144 0.004959 0.004839 0.004675

0.002489

0.903225806451613 0.008301 0.006093 0.004923 0.004837 0.004668

0.002482

0.935483870967742 0.008298 0.006073 0.004892 0.004814 0.004662

0.002449

0.967741935483871 0.008223 0.005981 0.004877 0.0047 69 0.004658

0.002424

### − 44

**−**

0.1 0.008764 0.0065818 0.0053257 0.0051127 0.0049682 0.0026855

Average of yearly averages: 0.0025721

Inputs generated by pe4.pl

- 8

- August

- 2003

Data used for this run:

Output File: Prallethrin

Metfile: w14737.dvf

PRZM scenario: PAturfC.txt

EXAMS environment file: pond298.exv

Chemical Name: Prallethrin

Description Variable Name Value Units Comments

Molecular weight mwt 300 g/mol

Henry's Law Const. henry 1.72e

- 3 atm

- m^3/mol

Vapor Pressure vapr 3.50e

- 5 torr

Solubility sol 80.3 mg/L

Kd Kd mg/L

Koc Koc 2533 mg/L

Photolysis half

- life kdp 0.57 days Half

- life

Aerobic Aquatic Metabolism kbacw 18 days Halfife

Anaerobic Aquatic Metabolism kbacs 37 days Halfife

Aerobic Soil Metabolism asm 9 days Halfife

Hydrolysis: pH 5 0 days Half

- life

Hydr olysis: pH 7 0 days Half

- life

Hydrolysis: pH 9 4.9 days Half

- life

Method: CAM 2 integer See PRZM manual

Incorporation Depth: DEPI 0.0 cm

Application Rate: TAPP 0.0009 kg/ha

Application Efficiency: APPEFF 0.025 fraction

Spray Drift DRFT 0.125 fraction of application rate applied to pond

Application Date Date 01

- 04 dd/mm or dd/mmm or dd

- mm or dd

- mmm

Interval 1 interval 7 days Set to 0 or delete line for single app.

Interval 2 interval 7 days Set to 0 or delete line for single app.

Interval 3 inte rval 7 days Set to 0 or delete line for single app.

Interval 4 interval 7 days Set to 0 or delete line for single app.

Interval 5 interval 7 days Set to 0 or delete line for single app.

Interval 6 interval 7 days Set to 0 or delete line for single app.

Int erval 7 interval 7 days Set to 0 or delete line for single app.

Interval 8 interval 7 days Set to 0 or delete line for single app.

Interval 9 interval 7 days Set to 0 or delete line for single app.

Interval 10 interval 7 days Set to 0 or delete line for si ngle app.

Interval 11 interval 7 days Set to 0 or delete line for single app.

Interval 12 interval 7 days Set to 0 or delete line for single app.

Interval 13 interval 7 days Set to 0 or delete line for single app.

Interval 14 interval 7 days Set to 0 or de lete line for single app.

Interval 15 interval 7 days Set to 0 or delete line for single app.

Interval 16 interval 7 days Set to 0 or delete line for single app.

Interval 17 interval 7 days Set to 0 or delete line for single app.

Interval 18 interval 7 day s Set to 0 or delete line for single app.

Interval 19 interval 7 days Set to 0 or delete line for single app.

Interval 20 interval 7 days Set to 0 or delete line for single app.

Interval 21 interval 7 days Set to 0 or delete line for single app.

Interval 22 interval 7 days Set to 0 or delete line for single app.

Interval 23 interval 7 days Set to 0 or delete line for single app.

Interval 24 interval 7 days Set to 0 or delete line for single app.

Interval 25 interval 7 days Set to 0 or delete line for singl e app.

Record 17: FILTRA

IPSCND 3

UPTKF 0

### − 45

**−**

Record 18: PLVKRT 0

PLDKRT 0

FEXTRC 0.5

Flag for Index Res. Run IR Pond

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



## Pore water

stored as Prallethrinben.o ut

Chemical: Prallethrin

PRZM environment: PAturfC.txt modified Satday, 12 October 2002 at 17:27:02

EXAMS environment: pond298.exv modified Thuday, 29 August 2002 at 16:33:30

Metfile: w14737.dvf modified Wedday, 3 July 2002 at 09:06:12

Benthic segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 0.002277 0.002268 0.002249 0.002225 0.002206 0.00126

1962 0.002644 0.002637 0.00256 0.002389 0.002334 0.001512

1963 0.002658 0.002651 0.002573 0.002399 0.002334 0.00155

1964 0.002424 0. 002416 0.002374 0.002298 0.002275 0.001497

1965 0.002464 0.002457 0.002393 0.002281 0.002252 0.001449

1966 0.002392 0.002384 0.00235 0.002263 0.002169 0.001404

1967 0.002593 0.002586 0.002524 0.002405 0.002349 0.001526

1968 0.002506 0.002498 0.002481 0.002 419 0.002348 0.001487

1969 0.00255 0.002543 0.002474 0.002342 0.002298 0.001492

1970 0.002352 0.002343 0.00232 0.002273 0.002228 0.001456

1971 0.002376 0.002369 0.002317 0.002267 0.002234 0.00143

1972 0.002385 0.002378 0.002349 0.002293 0.002243 0.001437

1 973 0.002293 0.002285 0.002253 0.002182 0.002119 0.001361

1974 0.002566 0.002559 0.002489 0.002339 0.002288 0.001459

1975 0.002492 0.002484 0.002408 0.002257 0.002218 0.001401

1976 0.002433 0.002426 0.002357 0.002222 0.00216 0.001369

1977 0.0023 2 0.002313 0.002254 0.002144 0.002103 0.001399

1978 0.002515 0.002508 0.002438 0.002298 0.002246 0.001468

1979 0.002405 0.002397 0.002375 0.00234 0.002303 0.001447

1980 0.002222 0.002213 0.002188 0.002126 0.002056 0.001274

1981 0.002431 0.002423 0.002355 0 .002209 0.002132 0.001386

1982 0.002556 0.002549 0.002488 0.00237 0.00231 0.001479

1983 0.002287 0.002279 0.00226 0.002206 0.002139 0.001339

1984 0.002407 0.0024 0.002323 0.002169 0.002134 0.001386

1985 0.002336 0.00233 0.002278 0.002193 0.002174 0.00136

1986 0.002432 0.002425 0.00236 0.002232 0.002165 0.001408

1987 0.002465 0.002458 0.002391 0.002248 0.002176 0.001416

1988 0.002317 0.002308 0.00228 0.002201 0.002113 0.001378

1989 0.002376 0.002369 0.002311 0.002221 0.002202 0.001418

1990 0.0024 0.002393 0 .00232 0.002171 0.002119 0.001357

Sorted results

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

0.032258064516129 0.002658 0.002651 0.002573 0.002419 0.002349

0.00155

0.0645161290322581 0.002644 0.002637 0.00256 0.002405 0.002348

0.001526

0.0967741935483871 0.002593 0.002586 0.002524 0.002399 0.002334

0.001512

0.129032258064516 0.002566 0.002559 0.002489 0.002389 0.002334

0.001497

### − 46

**−**

0.161290322580645 0.002556 0.002549 0.002488 0.00237 0.00231 0.001492

0.193548387096774 0.00255 0.002543 0.002481 0.002342 0.0023 03

0.001487

0.225806451612903 0.002515 0.002508 0.002474 0.00234 0.002298

0.001479

0.258064516129032 0.002506 0.002498 0.002438 0.002339 0.002288

0.001468

0.290322580645161 0.002492 0.002484 0.002408 0.002298 0.002275

0.001459

0.32258064516129 0.002465 0.0 02458 0.002393 0.002298 0.002252

0.001456

0.354838709677419 0.002464 0.002457 0.002391 0.002293 0.002246

0.001449

0.387096774193548 0.002433 0.002426 0.002375 0.002281 0.002243

0.001447

0.419354838709677 0.002432 0.002425 0.002374 0.002273 0.002234

0.00143 7

0.451612903225806 0.002431 0.002423 0.00236 0.002267 0.002228 0.00143

0.483870967741936 0.002424 0.002416 0.002357 0.002263 0.002218

0.001418

0.516129032258065 0.002407 0.0024 0.002355 0.002257 0.002206

0.001416

0.548387096774194 0.002405 0.002397 0.00235 0.002248 0.002202

0.001408

0.580645161290323 0.0024 0.002393 0.002349 0.002232 0.002176

0.001404

0.612903225806452 0.002392 0.002384 0.002323 0.002225 0.002174

0.001401

0.645161290322581 0.002385 0.002378 0.00232 0.002222 0.002169

0.001399

0.67741935483871 0.002376 0.002369 0.00232 0.002221 0.002165

0.001386

0.709677419354839 0.002376 0.002369 0.002317 0.002209 0.00216

0.001386

0.741935483870968 0.002352 0.002343 0.002311 0.002206 0.002139

0.001378

0.774193548387097 0.002336 0.00 233 0.00228 0.002201 0.002134 0.001369

0.806451612903226 0.00232 0.002313 0.002278 0.002193 0.002132

0.001361

0.838709677419355 0.002317 0.002308 0.00226 0.002182 0.002119 0.00136

0.870967741935484 0.002293 0.002285 0.002254 0.002171 0.002119

0.001357

0.90 3225806451613 0.002287 0.002279 0.002253 0.002169 0.002113

0.001339

0.935483870967742 0.002277 0.002268 0.002249 0.002144 0.002103

0.001274

0.967741935483871 0.002222 0.002213 0.002188 0.002126 0.002056

0.00126

0.1 0.0025903 0.0025833 0.0025205 0.002398 0 .002334 0.0015105

Average of yearly averages: 0.00142016666666667

Inputs generated by pe4.pl

- 8

- August

- 2003

Data used for this run:

Output File: Prallethrin

Metfile: w14737.dvf

PRZM scenario: PAturfC.txt

EXAMS environment file: pond298.exv

### − 47

**−**

Chemical Name: Prallethrin

Description Variable Name Value Units Comments

Molecular weight mwt 300 g/mol

Henry's Law Const. henry 1.72e

- 3 atm

- m^3/mol

Vapor Pressure vapr 3.50e

- 5 torr

Solubility sol 80.3 mg/L

Kd Kd mg/L

Koc Koc 2533 mg/L

Photolysis half

- life kdp 0. 57 days Half

- life

Aerobic Aquatic Metabolism kbacw 18 days Halfife

Anaerobic Aquatic Metabolism kbacs 37 days Halfife

Aerobic Soil Metabolism asm 9 days Halfife

Hydrolysis: pH 5 0 days Half

- life

Hydrolysis: pH 7 0 days Half

- life

Hydrolysis: pH 9 4.9 days H alf

- life

Method: CAM 2 integer See PRZM manual

Incorporation Depth: DEPI 0.0 cm

Application Rate: TAPP 0.0009 kg/ha

Application Efficiency: APPEFF 0.025 fraction

Spray Drift DRFT 0.125 fraction of application rate applied to pond

Application Date Date 01

- 0 4 dd/mm or dd/mmm or dd

- mm or dd

- mmm

Interval 1 interval 7 days Set to 0 or delete line for single app.

Interval 2 interval 7 days Set to 0 or delete line for single app.

Interval 3 interval 7 days Set to 0 or delete line for single app.

Interval 4 interval 7 days Set to 0 or delete line for single app.

Interval 5 interval 7 days Set to 0 or delete line for single app.

Interval 6 interval 7 days Set to 0 or delete line for single app.

Interval 7 interval 7 days Set to 0 or delete line for single app.

Interval 8 interval 7 days Set to 0 or delete line for single app.

Interval 9 interval 7 days Set to 0 or delete line for single app.

Interval 10 interval 7 days Set to 0 or delete line for single app.

Interval 11 interval 7 days Set to 0 or de lete line for single app.

Interval 12 interval 7 days Set to 0 or delete line for single app.

Interval 13 interval 7 days Set to 0 or delete line for single app.

Interval 14 interval 7 days Set to 0 or delete line for single app.

Interval 15 interval 7 day s Set to 0 or delete line for single app.

Interval 16 interval 7 days Set to 0 or delete line for single app.

Interval 17 interval 7 days Set to 0 or delete line for single app.

Interval 18 interval 7 days Set to 0 or delete line for single app.

Interval 1 9 interval 7 days Set to 0 or delete line for single app.

Interval 20 interval 7 days Set to 0 or delete line for single app.

Interval 21 interval 7 days Set to 0 or delete line for single app.

Interval 22 interval 7 days Set to 0 or delete line for single app.

Interval 23 interval 7 days Set to 0 or delete line for single app.

Interval 24 interval 7 days Set to 0 or delete line for single app.

Interval 25 interval 7 days Set to 0 or delete line for single app.

Record 17: FILTRA

IPSCND 3

UPTKF 0

Record 18: PLVKRT 0

PLDKRT 0

FEXTRC 0.5

Flag for Index Res. Run IR Pond

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

### − 48

**−**



# Appendix C. Data Requirements

Ecological Effects Data Requirements for: Prallethrin

Guideline # Data Requirement Is Data

Requirement

Satisfied? MRID #’s Study

Classification

71

- 1 Avian Oral LD 50 Yes 41321805

41321804 Core

Supplemental

71

- 2 2 Avian Dietary LC 50 's

Yes 41321806

41321807 Core

Core

71

- 4 Avian Reproduction (2 species)

Yes 43773403

43797604 Core

Core

72

- 1 2 Freshwater Fish LC 50's (Tech)

2 Freshwater Fish LC 50's (TEP)

2 Freshwater Fish LC 50's (degradates ketolon and PGLS) Yes

Reserved 1

Waived 41321809 (Tech)

41321808 (Tech) Core

Core

72

- 2 Freshwater Invert. Acute LC 50 (Tech)

Freshwater Invert. Acute LC 50 (TEP)

Freshwater Invert. Acute LC 50 (degradate) Yes

Reserved 1

Waived 41321810 (Tech) Core

850.1735 Whole Sediment Acute Toxicity

Freshwater Invertebrates (Tech) No Not applicable Not applicable

72

- 3(a) Estuarine/Marine Fish LC 50 (Tech)

Estuarine/Marine Fish LC 50 (TEP)

Estuarine/Marine Fish LC 50 (degradate) Yes

Reserved 1

Waived 444729602 (Tech) Core

72

- 3(b) Estuarine/Marine Mollusk EC 50 (Tech)

Estuarine/Marine Mollusk LC 50 (TEP)

Estuarine/Marine Mollusk EC 50 (degradate) Yes

Reserved 1

Waived 44729601 (Tech) Core

72

- 3(c) Estuarine/Marine Shrimp EC 50 (Tech)

Estuarine/Marine Shrimp LC 50 (TEP) Yes

No

Waived 44729603 (Tech) Core

### − 49

**−**



# Ecological Effects Data Requirements for: Prallethrin

Guideline # Data Requirement Is Data

Requirement

Satisfied? MRID #’s Study

Classification

Estuarine/Marine Shrimp EC 50 (degradate)

850.1740 Whole Sediment Acute Toxicity

Estuarine/Marine Invertebrates

(Tech) No

Reserved Not applicable Not applicable

72

- 4(a) Freshwater Fish Early Life

- Stage

(Tech)

Freshwater Fish Early Life

- Stage

(degradate) Yes

Waived 44729604 (Tech) Core

72

- 4(b) Estuarine Fish Early Life

- Stage

(Tech)

Estuarine Fish Early Life

- Stage

(degradate) Waived

Waived Not applicable

(Tech)

(degradate) Not applicable

72

- 4(c) Estuarine Invertebrate Life

- Cycle

(Tech)

Estuarine Invertebrate Life

- Cycle

(degradate) Reserved

Waived Not applicable

(Tech)

(degradate) Not applicable

72

- 4(d) Freshwater Invert Life

- Cycle

(Tech)

Freshwater Invert. Life

- Cycle

(degradate) Yes

Waived 44729605 (Tech) Core

72

- 5 Freshwater Fish Full Life

- Cycle

Estuarine Fish Full Life

- Cycle Reserved

Reserved Not applicable Not applicable

81

- 1 Acute Mammalian LD 50 Yes 42030903 Guideline

83

- 4 2

- generation mammalian

reproduction Yes 42077006

42178501 Guideline

122

- 1(a)

- Tier I Seed Germ./Seedling Emergence No Not applicable Not applicable

122

- 1(b)

- Tier I Vegetative Vigor No Not applicable Not applicable

122

- 2

- Tier I Aquatic Plant Growth No Not applicable Not applicable

123

- 1(a)

- Tier II Seed Germ./Seedling Emergence Reserved Not applicable Not applicable

123

- 1(b)

- Tier II Vegetative Vigor Reserved Not applicable Not applicable

123

- 2

- Tier II Aquatic Plant Growth Reserved Not applicable Not applicable

141

- 1 Honey Bee Acute Contact (Tech) Yes 41321823 Core

### − 50

**−**



# Ecological Effects Data Requirements for: Prallethrin

Guideline # Data Requirement Is Data

Requirement

Satisfied? MRID #’s Study

Classification

141

- 2 Honey Bee Residue on Foliage

(TEP) No 43749301 Core

1. EFED is seeking TEP testing for the most prallethrin sensitive aquatic surrogate species, mysid shrimp. After evaluating the results of

mysid shrimp TEP, testing EFED will decide if more TEP testing is needed.



# Environmental Fate Data Requirements for: Prallethrin

Guideline # Data Requirement Is Data

Requirement

Satisfied? MRID #’s Study

Classification

161

- 1 Hydrolysis Y 42838602 C

161

- 2 Photodegradation in Water Y 43797601 C

161

- 3 Photodegradation on Soil Y 43797602,

43797603 C

161

- 4 Photodegradation in Air N NA W

162

- 1 Aerobic Soil Metabolism Y 42838601 C

162

- 2 Anaerobic Soil Metabolism N N/A N/A

162

- 3 Anaerobic Aquatic Metabolism Y 44366601,

44366602 C

162

- 4 Aerobic Aquatic Metabolism N* 44861001,

44861002 S*

163

- 1 Adsorption/Desorption Y 42810801 S**

163

- 2 Laboratory Volatility N NA W

163

- 3 Field Volatility N NA W

164

- 1 Terrestrial Field Dissipation N NA W

164

- 2 Aquatic Field Dissipation N NA W

165

- 4 Accumulation in Fish/

Bioconcentration Y 42810802,

43758001 C

C=Core; S=Supplemental; U=Unnaceptable; W=Waived; N/A=Not Applicable; NA=Not Available

* The study will not be upgraded to acceptable, and will remain supplemental. Should the registrant wish to add uses of this chemical, t he EFED

will reassess the data requirement. **No additional data are required