### 1 MEMORANDUM

DATE: October 11 , 2011

SUBJECT: Tier I Drinking Water Exposure Assessment for the Section 3 New Use of

Acetamiprid on Various Agricultural Crops and as a Scatter Bait to Control

Insects

TO : Michael Doher ty, Chemist

Christina Swartz, Branch Chief

Risk Assessment Branch 2

Health Effects Division (HED)

Jennif er Urbanski , Risk Manager Reviewer

Venus Eagle , Product Manager

Laura Nollen, Risk Manager Reviewer

Barbara Madden, Risk Manager

Registration Division (7505P)

FROM: Katrina White

, Ph.D. Biologist

Environmental Risk Branc h IV

Environmental Fate and Effects Division (7507P )

REVIEWED

BY: Ja m es N. Carleton , Ph.D., Senior Scientist

Environmental Risk Branch IV

Environmental Fa te and Effects Division (7507P)

APPROVED

BY: Marietta Echeverria

, Branch Chief

Environmental Risk Branch IV

Environmental Fate and Effects Division (7507P) OFFICE OF CHEMICAL SAFETY

AND POLLUTION PREVENTION 

### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

WASHINGTON, D.C. 20460



### PC Code : 099050

DP Barcode: D394234, 394479

### 2 Executive Summary

This memo summarizes the Tier I estimated drinking water concentrations (EDWC s ) of

acetamiprid ( PC Code 099050, ( E )

- N 1

- [(6

- chloro

- 3

- pyridyl)methyl]

- N

2

- cyano

- N 1

- methylacetamidine ) in surface water and in ground water in support of the proposed Section 3

new u se of acetamiprid for control of a variety of insects on several use sites. Nippon Soda Co

LTD is seeking registration for

• a wettable powder (ASSAIL ® 70 WP, EPA Registration Number 8033

- 23) that contains

70 % acetamiprid

,

• a soluble granule (ASSAIL ® 30 SG, EPA Registration Number 8033

- 36) that contains

30% acetamiprid

, and

• a dry bait material (RF2157 Insecticide) that contains 0.5% acetamiprid and 0.075% z

- 9

Tricosene

. This assessment focuses only on the active ingredient acetamiprid ; z

- 9 tricosine is not assessed

. Ground, aerial, and chemigation applications are proposed for the wettable powder and soluble

granule formulatio ns and the bait is scattered by hand or placed in bait stations

. The maximum

application rates considered in this assessment include the seasonal rate of 2.0 lbs active

ingredient per acre ( a.i./A ) for the proposed new use as a scatter bait and 0.72 lbs a .i./A for the

proposed use on tree nuts

. The tree nut use is an existing use but was evaluating using updated

fate data

. The high application scenario for the scatter bait is based on an assumed 24 possible

applications because the label does not specif y a maximum number of applications. Results

were also modeled assuming one application. For the scatter bait use, only a portion of an acre is

likely to be treated; however, that portion is not specified on the label. If the label specified a

lower maxim um application rate for an entire acre, the EDWC s would be lower.

The EDWCs for both surface and ground water recommended for use in HED’s human health

dietary risk assessment are summarized in Table 1 . The EDWCs resulting from the propos ed

application rate s are higher than the EDWCs for surface and ground water in the previous

drinking water assessments for acetamiprid ( USEPA, 2011, D390070 )

. 1 

### The values in surface

wate r are f our to ten times higher than previously E DWCs and the values for groundwater are 3 3

to 35 times higher. Degradation kinetics used in modeling were calculated including results

from MRID 46255603 . This MRID was not included in estimated aerobic soil metabolism rates

for the previous drinking water assessments because only one replicate was included in the

study. While the study only had one replicate and two replicates are typically required , th e

results were found to be acceptable for use in modeling in this assessment. Kinetics were also

estimated assuming that unextracted residues were the parent compound for some studies.

Therefore, EDWC s were estimated for the previously evaluated use scen arios (citrus, potatoes,

tobacco, tree nuts, grapes and other small fruits, greenhouse

- grown tomatoes, and soybeans)

using the new input parameters. Additionally, a percent cropped area was not applied to the

modeled values because acetamiprid is register ed for use in residential areas, domestic dwellings,

rights of way, and on ornamentals. Drinking water assessments were not available for all of the

use patterns listed as active in OPPIN and it is not known if this risk assessment evaluated the

highest u se rates or use scenario that would result in the highest drinking water numbers when

considering all acetamiprid approved labels ; however, the reported values are the highest values

1 Previously estimated acu te and annual average surface water concentrations were 24.70 and 7.09 ppb, respectively.

Previously estimated groundwater concentrations were 4 parts per trillion.

### 3 based on previously evaluated uses and the currently propo s ed labels. If these EDWC result in a

risk concern they can be refined. For the use where the bait is placed in a station it is assumed

that minimal transport of the pesticide into water will occur and drinking water concentrations

are not estimated.

No monitoring dat a are currently available to further characterize potential drinking water

exposure.

Table 1

. Tier I EDWCs for drinking water risk assessment based on acetamiprid use as a

bait scattered on surfaces and on tree nuts

. 1

, 2

Source of Drinking

Water Acetamiprid concentration in drinking water ( μg/L)

Bait Scattered on Surfaces

(High Use Scenario) Tree Nuts

Surface water

drinking water sources acute: 95.2

annual average: 26.6 acute: 42.8

annual average: 12.2

Groundwater drinking

water sources 0.035 0.013

1 These are the highest EDWC s for the proposed and previously evaluated use scenarios.

2 Previously estimated acute and annual average surface water concentrations were 24.70 and 7.09 ppb,

respectively. Previously estimated groundwater concentrations were 4 parts per trillion.



### Proposed Use

Nippon Soda Co. LTD is seeking registration of several new use s of acetamiprid (PC Code

099050) on three separate labels

. T he new uses evaluated in this assessment are for the wettable

powder product ASSAIL ® 70WP ( EPA registration Number 8033

- 23, 70 % acetamiprid), the

soluble granule ASSAIL ® 30SG (30% by weight acetamiprid), and the scatter bait RF2157

Insecticide (EPA Registration Number 8033

- XX, 0.5% acetamiprid and 0.075% Z

- 9 Tricos ene)

. A number of different uses are proposed on the labels including use on c otton, leafy vegetables

within crop group 4, h ead and stem cole c rops, leafy cole crops (within crop subgroup 5B),

turnip greens, fruiting vegetables (within cr op group 8

- 10), t uberous and cor m vegetables within

crop subgroup 1C, cucurbits with crop group 9, edible podded legume within crop subgroup 6A,

succulent shelled peas and beans within crop subgroup 6B, blueberries and other bush berries

within subgroup 13

- 07B, caneberries with crop subgroup 13

- 07A, onions and other bulb

vegetables within crop group 3

- 07, asparagus, sweet corn, and pome fruit within crop group 11

- 10, and as a bait in animal areas

. Uses are also proposed on tobacco but the previous label

already had approve d uses on that crop but the interval between applications was not previously

assessed ; the interval in this assessment is seven days and the interval is specified on the label.

Uses on the proposed label that w ere previously assessed include use on citrus fruits, grapes and

other climbing small fruits (except fuzzy kiwifruit) within crop subgroup 13

- 07F, soybeans, and

tree nuts within crop group 14 including pistachio. A erial, chemigation, ground, and airblast

applications are proposed for the agricultural crops and the scatter bait may be scattered on

surfaces or placed in a bait station in animal areas and near enclosed dumpsters

. The soluble

granule is dissolved into water and applied as a spray. The maximum number of applications for

t he scatter bait is not specified on the label. Therefore, a high (24 applications with a three day

### 4 interval) and a low (one application) scenario were modeled. For the use where the bait is placed

in a station it is assumed that minimal transport of the pesticide into water will occur and

drinking water concentrations are not estimated. Drinking water concentrations are estimated for

the scattering of bait on surfaces. The ASSAIL ® 30SG and 70WP Insecticide label s state for

applications to row crops or orchard and vine crops, “For aerial application, select nozzles and

pressure that deliver medium spray droplets as indicated in nozzle manufacturer’s catalogs and in

accordance with ASAE Standard S

- 572”. Additionally, use of adjuvant , such as high qualit y

non

- ionic or silicone surfactants or methylated see d oils is recommended to enhance coverage

and plant uptake and may improve pest control on certain crops. Details on the proposed use

rates are shown in Table 4

.

Environmental Fate and Transport Summary

Acetamiprid is classified as moderately mobile using the FAO classification system (K OC 

### s =

157

- 298 L/kg OC) . The primary rout e of degradation is aerobic soil metabolism. Unextracted

residues made up a significant amount of radioactivity and the identity of the residues is

unknown in metabolism studies. Therefore, d egradation rates were estimated for the parent

alone and assuming that unextract ed residues were the parent. Aerobic soil metabolism rates for

the parent ranged from <1 day to six days for the parent and two to 99 days for the parent and

unextracted residues in nine soils ( USEPA, 2011, D390070 ) . Aerobic aquatic metabolism rates

were slower at 25 days fo r the parent alone and 74 days for parent and unextracted residues in

one sediment (MRID 44988513). Anaerobic aquatic metabolism was much slower and the half

life was 325 days in a loamy sand sediment (MRID 44988512)

. Acetamiprid is stable to

hydrolysis at 25 o 

### C and aqueous photolysis is not a major degradation pathway (half

- life = 34

days). Acetamiprid may be transported to surface water and ground water via runoff, leaching,

and spray drift

. A n updated summary of all environmental fate information for acetamiprid is

available in a recently completed drinking water assessment evaluating a proposed use on

soybeans ( USEPA, 2011, D390070 )

.

Modeling Approach and Input Parameters

The Metabolism Assessment Review Committee (MARC) reported that the residue of concern

for acetamiprid is the parent only ( USEPA, 2001 )

. T he 2009 “ Tier I Drinking Water Assessment

for Acetamiprid Proposed Uses on Red Clover (Grown for Seed Only), Grape and Tomato

(Greenhouse) ” was conducted for aceta miprid only. Therefore, this assessment will also be

conducted on acetamiprid only. Unextracted residues were observed in aerobic soil and aerobic

aquatic metabolism studies and in some studies it was un certain whether the unextracted residues

were par en t compound (MRIDs 46255603, 44651881, 44699101, 44651879, 44988513, and

44988512)

. 2 

### Additionally, the extraction techniques were not exhaustive and it is likely that if

different extraction techniques were used a higher percentage would be extracted. The refore,

when it was uncertain

, half

- lives were estimated assuming the unextracted residues were the

parent compound. When the parent was shown to degrade at the beginning of the study and

2 If unextracted residues formed along with loss of the parent compound it is possible th at the unextracted residues

are the parent compound; however, if the parent degraded significantly in the beginning of the study and unextracted

residues did not form until the end of the study, the unextracted residues are unlikely to be the parent compou nd.

### 5 unextracted residues did not appear until the end of the study, it was assumed that the

unextracted residues were not the parent compound.

EDWCs were generated using EFED’s standard suite of models. The FQPA Index Reservoir

Screening Tool (FIRST version 1.1.1, March 25, 2008 ) is a surface water model that is used to

est imate both acute and chronic pesticide concentrations in untreated drinking water. EDWCs

from FIRST represent concentrations which might occur from a single 1

- in

- 10

- year storm event

following the last application of pesticide at a location more vulnerable than most locations in

the United States to runoff, regardless of the crop being produced. The model considers

reductions in dissolved concentration due to the percentage of the watershed which is cropped

(percen t cropped area

- PCA), due to sorption of pesticide to field soil and to reservoir bottom

sediment, due to incorporation of the pesticide at the time of application, due to degradation in

soil before runoff to the reservoir, and due to degradation of the pesticide within the water body

. Reservoir water concentrations may be increased due to deposition of spray drift into the feeding

stream or directly into the reservoir itself. FIRST is designed to mimic a more complex

simulation using the linked PRZM3 ( Carsel et al. , 1997 ) and EXAMS 2.97.7 ( Burns, 2000 )

models, but requires less time and effort to complete. A more detailed description of the index

reservoir watersh ed can be found in USEPA , 2010 ( USEPA, 2010b ) . The FIRST model and

users manuals may be downloaded from the U.S. Environmental Protection Agency (EPA)

Wa ter Models web

- page ( http://www.epa.gov /oppefed1/models/water/#first ). Percent Cropped

Areas (PCA) that account for the maximum area within a watershed that may be planted with the

modeled crop are applied to concentrations predicted by FIRST according to “ Guidance on

Development and Use of Pe rcent Cropped Area Adjustment Factors in Drinking Water Exposure

Assessments ” ( USEPA, 2010a )

. Drinking water assessments have been completed for use of

acetamiprid on clover, grapes and other climbing vines, greenhouse grown tomatoes, citrus

fruits, tree nuts, bulb vegetables, succulen t legumes, strawberries, other berries, and potatoes

(D364248, D331596, D301859, D263686, D279762) . All of these crops are agricultural crops

and a PCA of 0.87 was used in the past in estimating surface water concentrations . OPPIN was

searched ( July 13, 2011 ) and there are currently registered uses in ornamentals (8033

- 22, 8033

- 107), domestic dwellings (8033

- 26, 8033109), rights of ways (8033

- 96), and residential areas

(WA060011 ) 3 

### . If a chemical has uses in a variety of land cover classes that include re sidential

areas, a PCA is not applied because the land

- class was not included in the development of PCAs

( USEPA, 2010a ) . A recent assessment evaluated proposed uses of acetamiprid on soybean and

also updated modeling for some previously assessed uses ( USEPA, 2011, D390070 )

.

Screening Concentration in Gr ound Water (SCI

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

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

as drinking water. SCI

- GROW was developed by fitting a linear model to ground water

concentrations wit h the Relative Index of Leaching Potential (RILP) as the independent variable.

The RILP is a function of aerobic soil metabolism and the soil

- water partition coefficient. The

output of SCI

- GROW r epresents the concentrations that might be expected in shal low

unconfined aquifers under sandy soils, which is representative of the ground water most

vulnerable to pesticide contamination and likely to serve as a drinking water source. The SCI

GROW model and user’s manual may also be downloaded from the EPA Wate r Models web

-

3 A comprehensive analysis of uses and labels was not completed. This reflects uses on only a subset of labels.

### 6 page ( http://www.epa.gov/oppefed1/models/water/#scigrow ). PCAs are not used with the SCI

GROW model.

A summary of the model input parameter values used in FIRST is presente d in Table 2 . A

summary of the model input parameter values used in SCI

- GROW is presented in Table 3

. Input parameters were selected in accordance with EFED’s “ Guidance for Selecting Input

Parameters in Modeling the Environmental Fate and Transport of Pesticides ,” Version 2.1

( USEPA, 2009 )

.

Coefficients of variation (CV) were lower for organic

- carbon normalized solid water distribution

coefficients (K OC 

### ; CV= 28 %) as compared to solid

- water dis tribution coefficients (K d 

### ;

CV= 66 %)(M RID 44651884 ). Therefore, the mean K OC 

### ( 227 L/kg OC) was used to estimate

acetamiprid concentrations in surface water in FIRST and the median K OC 

### ( 251 L/kg

- OC) was

used for SCI

- GROW . The aerobic soil metabolism input value in FIRST was calculated as the

90 th 

### percentile upper confidence bound on the mean of eight half

- life values and some of the

values were estimated for the parent and unextracted residues (MRIDs 44 651884, 44651882,

44699101, 44651879 , and 46255603 )

. 4 

### The aerobic soil metabolism input value for SCI

- GROW

was the median of the same eight half

- life value s

. The aerobic soil metabolism value from

MRIDs 44651880 w as not used in modeli ng because the study was not conducted using Good

Laboratory Practices (GLP)

. 40 CFR Part 160.1 prescribes that GLP should be followed for

studies used to support pesticide registrations. The MRID states that it was not conducted under

GLP. The uses on agricultural crops allow for ground

, aerial

, and airblast applications of a

flowable material

. 5 

### The scatter bait is applied as a dry material on surfaces or placed in a bait

station and no spray drift is expected with this use. The scatter bait use is evaluated as a granule

formulation. For the agricultural crop uses, EDW C for broadcast aerial spray applications w ere

estimated as these will result in higher concentrations than a ground or airblast application

. One

aerobic aquatic metabolism value was available ( 25 for parent only and 74 days for parent and

unextracted residues in a loamy sand ; MRID 44988513). The se value s w ere multiplied by three

to obtain the model input value s of 75 and 222 days for FIRST

. The 34

- day aqueous photolysis

half

- life input value reflects corrections for continuous illumination as well as for latitude/season

to reflect photolysis in summer sunlight at 40 o 

### N latitude

.

The FIRST output file and SCI

- GROW output file are located in Appendix A.

4 The values used to calculate the 90 th percentile value were 1.1, 1.2, 1.0, 2.8, 0.9, 6.0, 1.4, and 3.5 days for parent

only and 76, 75, 9 9, 2.8, 0.9, 10, 2, and 6.4 days for parent and unextracted residues. In previous drinking water

assessments results from MRID 46255603 were not used in modeling. The results from this study were used in

modeling in this assessment. The main deficiency in the study was that there was only one replicate.

5 In the previous assessment, the soluble granule (SG) formulation was assumed to be applied as a granule which

would result in no spray drift; however, the label states that the soluble granule should be dissolved in a liquid prior

to application and therefore, it was treated as a flowable in this assessment.

### 7 Table 2

. FIRST (v1.1.0) Input Parameter V alues for Acetamiprid use on Soybeans

Parameter Value Source Comment

Application Rate (lbs

a.i ./A) 1

See Table 4

. Proposed Label See Section titled “Proposed Use” for

full explanation.

Number of Applications Proposed Label

Interval between

Applications (days) Proposed Label

Organic carbon

partitioning coefficient

(K OC ; mL/g OC ) 227 MRID 44651884 M ean of five K OC value s . See text.

Aerobic Soil

Metabolism Half

- life

(days) Parent Only: 3.1

Parent+Unextracted

Residues: 55 MRID s

44655603,

4 4651881,

44699101,

44651879 T he 90 th percentile upper confidence

bound on the mean of eight values

.

Wetted in? No Proposed label. None

Depth of Incorporation

(inches) 0 Proposed label. None

Method of Application ground and aerial spray Proposed label. None

Percent Cropped Area

(PCA) 1.0 PCA Guidance

( USEPA, 2010a ) There are currently registered

residential and rights

- of

- way uses.

Solubility in Water

(mg/L) 4250 MRID 44651811 Measured at 25 o C

Aerobic Aquatic

Metabolism Half

- life

(days) Parent: 75

Parent+ Unextracted

Residues: 222 MRID 44988513 M easured value times three to account

for uncertainty associated with using a

single value

. Hydrolysis Half

- life at

pH 7 (days) Stable (0) MRID 44651876 None

Aquatic Photolysis

Half

- life at pH 7 (days ) 34 MRID 44988509 None



### Table 3

. SCI

- GROW (v2.3) Input Parameter Values for Acetamiprid Use on Soybeans

Parameter Value Source Comments

Application Rate (lb s

a.i./acre ) See Table 4 Proposed label See Section titled “Proposed Use” for

full explanation.

Number of

applications Proposed label

K

oc (mL/g) 251 MRID 44651884 Median of five values. There is not a

three fold difference in observed values.

See text.

Aerobic soil

metabolism t 1⁄2 (days) Parent Only: 1.3

Parent+Unextracted

Residues: 8.2 MRID s 44655603,

44651881,

44699101,

44651879 T he median of eight

values.

### 8 Modeling Results

Estimated acetamiprid concentrations in surface water and ground water used for drinking water

are summarized i n Table 4

. Use scenarios evaluated in previous drinking water assessment s and

the proposed uses were evaluated. Acute estimated acetamiprid concentrations in surface water

use d for drinking water ranged from 6 to 95 μg/L. Estimated annual average concentrations

ranged from 2 to 27 μg/L. Simulated concentrations in ground water ranged from 0. 00 04 to

0.035 μg/L. As unextracted residues were assumed to be the parent for most modeling and it is

uncertain whether the unextracted residues are the parent, the scenarios resulting in the highest

EDWC using inputs that assumed unextracted residues were the parent were also modeled using

inputs calcul ated for known residues of parent only ( e.g ., assuming that the unextracted residues

were not the parent compound)

. These inputs for both parent only and parent+unextracted

residues are shown in the input tables. T he acute, annual average and ground wate r EDWCs for

parent and unextracted residues are 6, 10 and 35 times the EDWC s for parent alone for the bait

high scenario. The acute, annual average and ground water EDWCs for parent and unextracted

residues are 4, 6, and 33 times the EDWCs for parent alone for the tree nut scenario. The

identity of the unextracted residues is a significant source of uncertainty given that it makes an

order of magnitude difference on the EDWCs. The high use bait scenario resulted in the hig hest

EDWC. For this value to occur, the scatter bait would need to be applied to a large consecutive

area 24 times per year . For the scatter bait use, it is expected that only a portion of a large area

will be treated and that 24 consecutive applications will not be needed; however, the label does

not specify a lower maximum application rate for a large area or a maximum number of

applications. With additional information on the use pattern , the modeling for this use could be

refined

, with the likely res ult being lower EDWC s

.

### 9 Table 4

. Estimated Concentrations of Acetamiprid in Surface Water and Groundwater Source Drinking Water. Values with

an asterisk were calculated for parent residues only. Values without an asterisk were cal culated for parent and unextracted

residues.

Use Site/ Source Single App.

Rate

(lbs. a.i./A) Number of

Apps. Seasonal

App. Rate

(lbs.

a.i./A) Interval

Between

Apps.

(days) App.

Method Surface Water Groundwater

Concentration

(μg/L) Acute

(μg/L) Annual

Average

(μg/L)

RF2157 Insecticide/Dry Material/ 8033

- XXX 1

Scatter Bait 0.082 NS

1 (assumed) NS (0.082

assumed) NA Ground 5.9 2 1. 65 0.00 1

Scatter Bait 0.082 NS

24

(assumed) NS (2.0

assumed) NS (3

assumed ) Ground 95.2

16.3 * 26.6

2.65 * 0.035

0. 001 *

Bait Stations 0.082 1 NS NS Bait Station Assumed to be negligible

ASSAIL ® 70WP/ Wettable Powder / 8033

- 23 and ASSAIL® 30SG/ Soluble Granule / 8033

- 36

Cotton 0.1 4 0.4 7 Air 26.5 7.56 0.007

Leafy Vegetables within Crop Group

4 0.075 5 0.375 7 Air 23.95 6.83 0.007

Head and Stem Cole Crops 0.075 5 0.375 7 Air

Leafy Cole Crops (within Cro p

Subgroup 5B) and Turnip Greens 0.1 4 0.375 (0.4

assumed

for

modeling ) 7 Air 26.5 7.56 0.007

Fruiting Vegetables (within Crop

Grou p 8

- 10) 0.075 4 0.3 7 Air 19.9 5.67 0.005

Citrus (within Crop Group 10

- 10) 2 0.25 5 0.55 7 Air A ssume d a uniform application rate for Tier I

modeling as shown in next two rows

0.25

( assumed ) 2 (assumed) 7 Air 35.9 10.2 0.009

0.11

(assumed) 5 0.55 7 Air 35.1 10.0 0.010

Pome Fruit (within Crop Group 11

- 10) 0.15 4 0.60 12 Air 36.8 10.5 0.011

Tuberous and Corm Vegetables

(within Crop Sub

- group 1C) 2 0.075 4 0.3 7 Air 19.9 5.67 0.005

Tobacco 2 0.075 4 0.3 7 Air 19.9 5.67 0.005

Grapes and Other Climbing Small

Fruits (except Fuzzy Kiwifruit, 0.1 2 0.2 14 Air 13.8 3.94 0.004

### 10 Use Site/ Source Single App.

Rate

(lbs. a.i./A) Number of

Apps. Seasonal

App. Rate

(lbs.

a.i./A) Interval

Between

Apps.

(days) App.

Method Surface Water Groundwater

Concentration

(μg/L) Acute

(μg/L) Annual

Average

(μg/L)

within Crop Sub

- group 13

- 07F) 2

Stone Fruit (within Crop Group 12) 0.15 4 0.6 10 Air 37.9 10.8 0.011

Cucurbits (within Crop Group 9) 0.10 5 0.5 5 Air 33.4 9.50 0.009

Tree Nuts (within Crop Group 14,

including Pistachio) 2 0.18 4 0.72 14 Air 42.8

12.1 * 12.2

1.88 * 0.013

0.00 04 *

Edible Podded Legume (within Crop

Subgroup

- 6A) and Succulent Shelled

Peas and Beans (within Crop Sub

group 6B) 0.1 3 0.3 7 Air 20.7 5.90 0.006

Strawberries and Other Low

Growing Berries (within Crop Sub

group 13

- 07G) 0.13 2 0.26 7 Air 18.7 5.31 0.005

Blueberries and Other Bush Berries

(within Crop Sub

- Group 13

- 07B) and

Cane Berries (within Crop Sub

- group

13

- 07A) 0.085 5 0.5 7 Air 27.1 7.74 0.008

Onions and Other Bulb Vegetables

(within Crop Group 3

- 07) 0.15 4 0.6 7 Air 39.8 11.3 0.011

Clover (for use in OD, OR, and WA

only) 0.075 1 0.075 NA Air 5.61 1.60 0. 001

Asparagus 0.1 2 0.2 10 Air 14.1 4.02 0.004

Sweet Corn 0.1 4 (2

assumed for

modeling) 0.21 7 Air 14.1 4.02 0.0 0 4

TriStar 30 SG/ Soluble Granule/ 8033

- 94/ Modeling Updated

Greenhouse

- grown Tomatoes 2 0.075 2 0.15 3 assumed S oil

drenching 11. 0 3.14 0.003

Justice ® Insecticide/ Flowable/ 8033

- XXX 1 , modeling updated

Soybean 2 0.04 2 0.08 7 Aerial 5.75 1.64 0.00 1

Abbreviations: NS=not specified; ND=not determined; NA=Not applicable; App=Application

1 The proposed registrations will not get a full registration number until the product is registered. The XXX reflects the num bers that will be completed with

registration.

2 Uses on citrus (D364248), potatoes (D301859), tobacco (D301859), tree nuts (D364248), grapes and other climbing small fruit s (D364248), greenhouse

- grown

tomatoes (D364248), and soybeans (D390070) were previously assessed ( USEPA, 2011, D390070 )



### .

### 11 Monitoring Data

The following databases and sources were searched for monitoring information on acetamiprid :

• 

### The United States Environmental Protection Agency (USEPA) STORET Database

( http://www.epa.gov/storet/dbtop.html )

• 

### The United States Geological Survey ( USGS ) National Water

- Quality Assessment

( NAWQA ) P rogram Data Warehouse

( http://infotrek.er.usgs.gov/traverse/f?p=NAWQA:HOME:1405517206944567 )

• 

### The USGS National Stream Quality Accounting Network ( NASQAN ) program

( http://water.usgs.gov/nasqan / )

No monitoring information was found.

Drinking Water Treatment

There is no available information on the effects of drinking water treatment on acetamiprid

. The

EDWCs in this assessment are representative of concentrations in drinking water source water

(pre

- treatment). For surface water, the conceptual model assumes that a pesticide reaches

surface water via spray drift or surface runoff and it is instantan eously mixed and concentrations

are observed in the water body. Acetamiprid is sta ble to hydrolysis. Therefore, acetamiprid will

not degrade by hydrolysis during the time that elapses from drinking water intake through

distribution to the first tap. P hotolysis is a relatively un important degradation pathway

. Additionally, the half

- life is much longer than the residence time of the water within a typical

treatment plant. Therefore, if ultraviolet light were used as a means of disinfection, degradation

of acetamiprid would not be expected to be significant

. Acetamiprid does degrade via aerobic

metabolism in soil and sediment and some may degrade in an aerobic digester where aerobic

metabolism occurs . The most successful drinking water treatment process for removal of

pesticides from drinking water is thought to be treatment with granular activated carbon (GAC)

which is only used in larger drinking water treatment facilities. The ability of GAC to remove

pesticides will vary with the properties o f the chemical, the viability of the biofilm on the GAC,

and whether the sorption sites on GAC have reached capacity ( Badriyha et al. , 2003 ; Zhao et al.

, 1999 ) . Data on the sorption of acetamiprid to GAC are not available ; however, a high

percentage of sorption and thus removal of acetamipr id to GAC is likely to occur as much

acetochlor (reported K OC 

### of 156 L/kg) was removed from river water treated with GAC ( AERU,

2009 ; Ba driyha et al. , 2003 )

.

Uncertainties

The estimated concentrations provided in this assessment were generated from Tier 1 models and

are conservative estimates of acetam i prid concentrations in untreated drinking water. There

were a number of uncertainties associated with this drinking water exposure assessment. The

major uncertainty is whether the highest use pattern for acetamiprid was evaluated and what the

maximum number of application s would be for the scatter bait use. Another source of

uncertainty in the assessment i s the inclusion of unidentified, unextracted residues in the

calculation of aerobic soil metabolism half

- lives. For the scenarios resulting in the highest

### 12 EDWC, inclusion of unextracted residues in ha lf

- life calculations resulted in EDWC s that are 4

to 35 times EDWCs based on parent alone

. Therefore, the identity of the unextracted residues

results in a significant uncertainty in the risk assessment. There is also uncertainty associated

with modeling with FIRST and SCI

- GROW

. They are both Tier I models and therefore could

potentially over

- estimate chemical concentrations. If dietary risks require refinement, higher

tiered models and modeling scenarios can be utilized upon request.

Literature Cit ed

AERU. 2009. The FOOTPRINT Pesticide Properties Database. Agriculture & Environment

Research Unit (AERU). Available at http://sitem.herts.ac.uk/aeru/footprint/ (Accessed

July 9, 2009).

Badriyha, B. N., Ravindran, V., Den, W., & Pirbazari, M. 2003. Bioadsorber efficiency, design,

and performance forecasting for alachlor removal. Water Research, 37

. Burns, L. A. 2000. Exposure Analysis Modeling System (EXAMS): U ser Manual and System

Documentation. Revision G . EPA/600/R

- 00/81

- 023. September 2000. Ecosystems

Research Division. National Exposure Research Laboratory. United States

Environmental Protection Agency.

Carsel, R. F., Imhoff, J. C., Hummel, P. R., Chepl ick, J. M., & Donigian Jr., J. S. 1997. PRZM

- 3,

A Model for Predicting Pesticide and Nitrogen Fate in Crop Root and Unsaturated Soil

Zones: Users Manual for Release 3.0 . Memorandum From to Environmental Research

Laboratory. Office of Research and Develop ment. United States Environmental

Protection Agency.

USEPA. 2001. Acetamiprid. Results of the HED Metabolism Assessment Review Committee

. D278652. Memorandum From H. Bietlot, M. Doherty & P. Hurley to Y. Donovan.

Office of Prevention, Pesticides, ans Toxic Substances. United States Environmental

Protection Agency.

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

and Transport of Pesticides, Version 2.1 . Environmental Fate and Effects Division.

Office of Pest icide Programs. United States Environmental Protection Agency. Available

at http://www.epa.gov/oppefed1/models/water/input_parameter_guidance.htm (Accessed

November 12, 201 0).

USEPA. 2010a. Guidance on Development and Use of Percent Cropped Area Adjustment

Factors in Drinking Water Exposure Assessments . Environmental Fate and Effects

Division, Office of Pesticide Programs, United States Environmental Protection Agency.

Avail able at http://www.epa.gov/oppefed1/models/water/pca_adjustment_dwa.pdf

(Accessed November 29, 2010).

USEPA. 2010b. Guidance on Development and Use of the Index Reservoir in Drin king Water

Exposure Assessments . September 14, 2010. Environmental Fate and Effects Division.

Office of Pesticide Programs. United States Environmental Protection Agency. Available

at http://www.epa.gov/oppefed1/models/water/index_reservoir_dwa.pdf (Accessed

December 9, 2010).

USEPA. 2011.D390070. Tier I Drinking Water Exposure Assessment for the Section 3 New Use

of Acetamiprid on Soybeans to Control a Variety of Insect Pest s . D390070.

Memorandum From K. White to M. Doherty, C. Swartz & J. Urbanski. July 21, 2011.

### 13 Environmental Fate and Effects Division. Office of Chemical Safety and Pollution

Prevention. United States Environmental Protection Agency.

Zhao, X., Hickey, R . F., & Voice, T. C. 1999. Long

- term evaluation of adsorption capacity in a

biological activated carbon fluidized bed reactor system. Water Research, 33 (13).

### 14 Appendix A . Modeling Output file s

RUN No. 1 FOR acetamiprid ON scatter ba * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PP M ) (%DRIFT) AREA (IN)

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

0.082( 1.318) 24 3 227.0 4250.0 GRANUL( 0.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 0.00 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

95.195 26.550

RUN No. 2 FOR acetamiprid ON bait low s * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.082( 0.082) 1 1 227.0 4250.0 GRANUL( 0.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

5.922 1.652

### 15 RUN No. 3 FOR acetamiprid ON cotton * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.100( 0.352) 4 7 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

26.546 7.564

RUN No. 4 FOR acetamiprid ON leafy v ege * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.075( 0.317) 5 7 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOL IC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216. 00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

23.948 6.828

RUN No. 6 FOR acetamiprid ON leafy cole * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

### 16 ------------------------------------- -------------------------------

0.100( 0.352) 4 7 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYS IS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

26.546 7.564

RUN No. 1 FOR acetamiprid ON fruit * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.075( 0.264) 4 7 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSI S PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 0.00 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

19.909 5.673

RUN No. 2 FOR acetamiprid ON citrus * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.250( 0.479) 2 7 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

### 17 METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COM BINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

35.908 10.220

RUN No. 3 FOR acetamiprid ON pome * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.150( 0.485) 4 12 227.0 4250.0 AERIA L(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

36.777 10.492

RUN No. 4 FOR acetamiprid ON citrus 2 * INPUT VALUES *

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

RATE (#/AC ) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.110( 0.465) 5 7 227.0 4250.0 AERIAL(16.0 ) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

### 18 UNTREATED WATER CONC (MICROGRAMS/LI TER (PPB)) Ver 1.1.1 MAR 26, 2008

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

35.123 10.014

RUN No. 5 FOR acetamiprid ON corm * INPUT VALUES *

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

RATE (#/AC ) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.075( 0.264) 4 7 227.0 4250.0 AERIAL(16.0 ) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

UNTREATED WATER CONC (NANOGRAMS/LITER (PPTr)) Ver 1.1.1 MAR 26, 2008

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

0.000 0.000

RUN No. 6 FOR acetamiprid ON corm * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.075( 0.264) 4 7 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERV OIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

### 19 PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

19.909 5.673

RUN No. 7 FOR acetamiprid ON Tobacco * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROP PED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.100( 0.184) 2 14 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

13.819 3.935

RUN No. 8 FOR acetamiprid ON Stone * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (P PM ) (%DRIFT) AREA (IN)

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

0.150( 0.502) 4 10 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

37.943 10.819

### 20 RUN No. 9 FOR acetamiprid ON cucurbi ts * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.100( 0.443) 5 5 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

33.351 9.502

RUN No. 10 FOR acetamiprid ON tree nuts * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.180( 0.563) 4 14 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34 .00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCE NTRATION CONCENTRATION

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

42.808 12.218

RUN No. 11 FOR acetamiprid ON legume * INPUT VALUES *

### 21 ----------- ---------------------------------------------------------

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.100( 0.275) 3 7 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34 .00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCE NTRATION CONCENTRATION

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

20.704 5.896

RUN No. 12 FOR acetamiprid ON strawberri * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.130( 0.249) 2 7 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

18.672 5.314

RUN No. 1 FOR acetamiprid ON blue * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.085( 0.359) 5 7 227.0 4250.0 AERIAL(16.0) 100.0 0.0

### 22 FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 0.00 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

27.141 7.738

RUN No. 2 FOR acetamiprid ON onion * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.150( 0.528) 4 7 2 27.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

39.819 11.346

RUN No. 2 FOR acetamiprid ON clover * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.075( 0.075) 1 1 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

### 23 METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

5 .609 1.595

RUN No. 3 FOR acetamiprid ON asparagus * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.100( 0.188) 2 10 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DA YS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

14.124 4.021

RUN No. 4 FOR acetamiprid ON sweet corn * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DR IFT) AREA (IN)

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

0.100( 0.352) 4 7 227.0 222.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

26.546 7.564

RUN No. 5 FOR acetamiprid ON sweet corn * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.100( 0.352) 4 7 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

26.546 7.564

RUN No. 6 FOR acetamiprid ON tomato * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.075( 0.147) 2 3 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216.00 222.00 210.90

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

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

### 25 PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

11.022 3.136

RUN No. 7 FOR acetamiprid ON soybean * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.040( 0.077) 2 7 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOL IC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

55.00 2 N/A 34.00

- 4216. 00 222.00 210.90

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

5.745 1.635

RUN No. 8 FOR acetamiprid ON bait * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.082( 0.168) 24 3 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYS IS PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

3.10 2 N/A 34.00

- 4216.00 75.00 73.69

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

16.341 2.654

### 26 RUN No. 9 FOR acetamiprid ON tree nut p * INPUT VALUES *

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

RATE (#/AC) No.APPS & SOIL SOLUBIL APPL TYPE %CROPPED INCORP

ONE(MULT) INTERVAL Koc (PPM ) (%DRIFT) AREA (IN)

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

0.180( 0.188) 4 14 227.0 4250.0 AERIAL(16.0) 100.0 0.0

FIELD AND RESERVOIR HALFLIFE VALUES (DAYS)

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

METABOLIC DAYS UNTIL HYDROLYSI S PHOTOLYSIS METABOLIC COMBINED

(FIELD) RAIN/RUNOFF (RESERVOIR) (RES.

- EFF) (RESER.) (RESER.)

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

3.10 2 N/A 34.00

- 4216.00 75.00 73.69

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

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

PEAK DAY (ACUTE) ANNUAL AVERAGE (CHRONIC)

CONCENTRATION CONCENTRATION

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

12.090 1.882

SCIGROW

VERSION 2.3

ENVIRONMENTAL FATE AND EFFECTS DIVISION

OFFICE OF PESTICIDE PROGRAMS

U.S. ENVIRONMENTAL PROTECTION AGENCY

SCREENING MODEL

FOR AQUATIC PESTICIDE EXPOSURE

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:52: 21

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.082 1.0 0.082 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 1.46E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:53:20

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.082 24.0 1.968 2.51E+02 8.2

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

### 2 7 groundwater screening cond (ppb) = 3.50E

- 02

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:53:47

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.100 4.0 0.400 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 7.10E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:54: 8

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

Application Number of Total Use Koc Soil Ae robic

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

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

0.075 5.0 0.375 2.51E+02 8.2

---------------------------------- -------------------------------------- groundwater screening cond (ppb) = 6.66E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:54:28

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.100 4.0 0.400 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 7.10E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:54:41

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

Application Number of Total Use Koc Soil Ae robic

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

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

0.075 4.0 0.300 2.51E+02 8.2

---------------------------------- -------------------------------------- groundwater screening cond (ppb) = 5.33E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:54:58

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

Application Number of Total Use Koc Soil Aerobic

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

### 28 --------------------------------------------------------- ---------------

0.075 4.0 0.300 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 5.33E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:55: 5

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.250 2.0 0.500 2.51E+02 8.2

--- --------------------------------------------------------------------- groundwater screening cond (ppb) = 8.88E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:55:21

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.110 5.0 0.550 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 9.77E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:56: 0

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.150 4.0 0. 600 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 1.07E

- 02

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

SciGrow version 2.3

chemica l:acetamiprid

time is 10/ 7/2011 13:56:20

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.075 4.0 0.300 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 5.33E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:56:43

### 29 ------------------------------------------------------------------------

Application N umber of Total Use Koc Soil Aerobic

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

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

0.100 2.0 0.200 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 3.55E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:56:57

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.150 4.0 0.600 2.51E+02 8.2

---------------------------------------------------------------------- -- groundwater screening cond (ppb) = 1.07E

- 02

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:57:22

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.100 5.0 0.500 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 8.88E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:57:37

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.180 4.0 0.720 2.51E+02 8.2

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

groun dwater screening cond (ppb) = 1.28E

- 02

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:58: 1

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.110 3.0 0.330 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 5.86E

- 03

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

### 30 SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:58:14

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.130 2.0 0.260 2.51E+02 8.2

---------------------------------------- -------------------------------- groundwater screening cond (ppb) = 4.62E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:58:30

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.085 5.0 0.425 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 7.55E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:58:44

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

Application Number of Total Use Koc Soil Aerobic

rate (lb/acre) ap plications (lb/acre/yr) (ml/g) metabolism (days)

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

0.150 4.0 0.600 2.51E+02 8.2

------------------------------------------------------------ ------------ groundwater screening cond (ppb) = 1.07E

- 02

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:59: 0

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.075 1.0 0.075 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 1.33E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:59:18

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

Application Number of Total Use Koc Soil Ae robic

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

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

0.100 2.0 0.200 2.51E+02 8.2

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

### 31 groundwater screening cond (ppb) = 3.55E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 13:59:43

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.100 4.0 0.400 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 7.10E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 14: 0:14

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

Application Number of Total Use Koc Soil Ae robic

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

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

0.100 2.0 0.200 2.51E+02 8.2

---------------------------------- -------------------------------------- groundwater screening cond (ppb) = 3.55E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 14: 0:43

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.075 2.0 0.150 2.51E+02 8.2

------------------------------------------------------------------------ groundwater screening cond (ppb) = 2.66E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 14: 0:56

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.040 2.0 0.080 2.51E+02 8.2

--- --------------------------------------------------------------------- groundwater screening cond (ppb) = 1.42E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 14: 1:37

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

Application Number of Total Use Koc Soil Aerobic

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

### 32 -------------------------- ----------------------------------------------

0.082 24.0 1.968 2.51E+02 1.3

------------------------------------------------------------------------ groundwater screening cond (ppb) = 1.19E

- 03

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

SciGrow version 2.3

chemical:acetamiprid

time is 10/ 7/2011 14: 1:58

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

Application Number of Total Use Koc Soil Aerobic

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

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

0.180 4.0 0. 720 2.51E+02 1.3

------------------------------------------------------------------------ groundwater screening cond (ppb) = 4.37E

- 04

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