### Christina**2** 

### breakthrough t ime was 57 years and that this value was nearly t hree orders o f magnitude more than

that obtained from SCI

- GROW modeling ( 0.00 0 7 4 ppb of ipconazole ); and

(1) For surface water: 0.1 73 ppb of ipconazole for peak value

, 0. 10 5 ppb of ipconazole f or the highest non

- cancer chronic (annual mean) value , and 0.07 6 ppb of ipconazole for the highest cancer chronic (overall annual mean) value

.

As detailed below , this revision was necessary in order to cover all current labels including subject changes

, exclude non

- registered use patterns (i.e., potato & sweet potato) , and to correct
use label rates in lbs a.i/A for most of the crops to reflect all current labels and the newly published crop seeding rates by BEAD. It is noted that previous assessments use d Tier I modeling, however, Tier II modeling was used in this assessment: PRZM/EXAMS for surface water and

SCIGROW and PRZM

- GW for ground water.

It is also important to note the following :

(1) No decision was found on the residue of concern for ipconazole. Therefore, t his

assessment is based on parent ipconazole alone because ipconazole is highly persistent ( 90 th 

### percentile half

- life = 2,483 days ) and its only degradation product of concern is

Triazole which was found

, in an aerobic soil metabolism study

, at a relatively low concentrations ( maximum concentration = 11.8% of applied parent)

. Including the degradation product t riazole as part of the residue of concern is not expected to affect resultant EDWC concentrations;

(2) This assessment does not address the ex pected contribution of ipconazole to the

concentration of it’s degradate triazole; a common degradation product of several conazole pesticides. Please refer to previous drinking water assessments and/or other EFED

commun ications related to this aspect; an d

(3) The main drivers for exposure are application rate (product and seeding rates) and depth of incorporation (i.e., seeding depth). Seeding rates used were as per BEAD recommendation, however, seeding depths were obtained from the literature and for

conse rvative estimates, and the minimum reported seeding depths were used in modeling. It is noted that modeling assumed crops are to be seeded at appropriate depths and that

“No broadcast seeding is allowed for treated seeds ” is to be placed on the label for t reated seed bags.

The above stated values represent upper

- bound estimates of total concentrations that might be found in surface water and ground water due to the use of ipconazole as fungicide seed treatment

on the current use patterns including the proposed n ew u se by expansion of uses from crop subgroup 6C to the entire crop g roup 6

. The maximum EDWC values for both surface and ground water were based on the ginseng use pattern. If necessary, EDWC values for groundwater resulting from Tier I PRZM

- GW may be refined by using Tier II PRZM

- GW (strategies suggested**3** 

### are included in: Guidance for Using PRZM

- GW in Drinking Water Exposure Assessments ; October 15, 201 2 ) . I f more information or refinement is needed, please call Mohammed A. Ruhman at (703) 605

- 0 644 or email: Ruhman.mohammed@epa.gov



## I. Introduction

Previously, the attached two Tier I drinking water assessment s w ere developed for this chemical

on uses stated in these assessments:

• A ppendix 1 : Addendum: Tier 1 Drinking Water Concentrations for See d Treatment Uses of Ipconazole; EFED Memorandum dated March 15, 2004; DP Barcode: D289658; and;

• A ppendix 2 : Drinking Water Exposure Assessment for Ipconazole Use as Seed Treatment on Cotton, Peanuts, Soybean, Cer eal Grains (except Rice) and Pea and Beans (Dry Shelled) ; EFED Memorandum dated August 22, 2007; DP Barcode: DP339009

.

T he 1 st 

### drinking water assessment w as based on use as per one label ( Vortex ) while t he 2 nd


### drinking water assessment w as based on addit ional new use pattern s as per additional t hree labels, namely : Ipconazole/Thiram 10/350 FS ; Crusoe MD ; and Ipconazole 3.8 FS

. It appears that only two of these labels: Vortex and Ipconazole/ Thiram 10/350 FS are still current. No

information is available a bout Crusoe MD and Ipconazole 3.8 FS in either PRZM or the EPA Label System

. The driver for the EDWCs, for surface and ground water, was the seed treatment on potato which was not intended to be included in the label among the root & tuber crop group (both potato and sweet potato are not to be included in the label ).

Currently, there are 17 labels for ipconazole seed treatment ( Table 1 ) in addition to the new label which is a modification of one of these labels, namely: the Rancona 3.8FS

. From these labe ls, only two labels were considered in the previous drinking water assessments (highlighted yellow )

Table 1 Summary of the results for a label PRZM search of the active registrations for ipconazole

and its mixtures

Product Name 1 Bayer

- V1 Bayer

- IM Bayer

- V2 Bayer

- TWV Valent

- 1 Valent

- 2 CHEM

- IT

Registration Date PRZM Sep

- 04 Aug

- 05 Nov

- 08 Sep

- 09 Jun

- 11 Jan

- 12 Nov

- 08 Registration Date Label Nov

- 08 Aug

- 05 Feb

- 09 Sep

- 09 Aug

- 12 Jan

- 12 Sep

- 09 Registration Status (Label Stamped) 2 AC AC AC A N A AC

% of Activ e Ingredient 40.70% 6.04% 14.00% 1.02% 0.72% 0.72% 0.870% Active(s) Ingredient 3 1 1+3 1+3 1+2+3 1+2+3 1+2+3 1+5**4** 

### All of the 17 labels were down loaded from the EPA labeling system, examined and application parameters listed . The results for this exercise are summarized in Tab le s 2 and 3

. Product Name 1 CHEM

- R CHEM

- AP CHEM

- RP CHEM

- S CHEM

- XTR CHEM

- CW CHEM

- C CHEM

- RS CHEM

XTR P CHEM

CTS
Registration

Date : PRZM Mar

- 07 Nov

- 08 Jan

- 09 Jul

- 09 Jul

- 09 Nov

- 09 Nov

- 09 Jan

- 11 Nov

- 11 Sep

- 12 Registration

Date : Label Sep

- 12 Jun

- 10 Aug

- 10 Sep

- 12 Jun

- 12 Nov

- 09 Jun

- 11 May

- 12 Nov

- 11 Oct

- 12 Registration

Status 2 A AC N A A AC AC AC A N

% of Active Ingredient 40.70% 0.44% 0.434% 0.900% 1.029% 0.439% 0.421% 0.727% 1.029% 2.420% Active(s) Ingredient 3 1 1 1+3 1+3 1+3 1+3+6 1+3+4 1+7 1+3 1+3

1 Product Name Abbreviations : Bayer

- V1 = Vortex ; Bayer

- IM = Ipconazole Metalaxyl Md (S); Bayer

- V2 = Vortex 2000; Bayer

- TWV = Three

- Way Vap; Valent

- 1 = Innovate Seed Pr otectant; Valent

- 2 = Innovate Neutral Seed Protectant; CHEM

- IT = Ipconazole/ Thiram 10/350

FS ; CHEM

- R = Rancona 3.8FS ; CHEM

- AP = Rancona Apex; CHEM

- RP = Rancona Pinnacle; CHEM

- S = Rancona Summit; CHEM

XTR = Rancona Xxtra; CHEM

- CW = Rancona Crest WR; CHEM

- C = Rancona Crest; CHEM

- RS = Rancona RS; CHEM

- XTRP = Rancona Xxtra Pro; and CHEM

- CTS = Rancona CTS Seed Protectant

2 Registration Status (Label Stamped) Abbreviations: A= Accepted; AC= Accepted with comments and N : Notification

3 Active Ingredient: 1= Ipconaz ole; 2= Clothianidin; 3= Metalaxyl; 4= Imidacloprid; 5= Thiram; 6= Imidacloprid ; and 7= Carboxin**5** 

### Table 2 Summary of use patterns f rom the current labels of ipconazole

Products Name 1 → New Label Bayer

- V1 Bayer

- IM Bayer

- V2 Bayer

- TWV Valent

- 1 Valent

- 2 CHEM

- IT CHEM

- R a.i/fl. Oz Product → Crop Group/ Crop 0.0294531 0.029453 0.0083594 0 .0100000 0.0008047 0.0005273 0.0005273 0.0294531 0.0294531

Vegetables: Root

& Tuber 1.00E

- 04 1.00E

- 04 No Use 2.50E

- 05 No Use No Use No Use No Use 1.00E

- 04

Vegetables: Leafy 1.00E

- 04 1.00E

- 04 No Use 2.50E

- 05 No Use No Use No Use No Use 1.00E

- 04 Vegetable s: Brassica 1.00E

- 04 1.00E

- 04 No Use 1.00E

- 04 No Use No Use No Use No Use 1.00E

- 04 Vegetables:

Cucurbits 1.00E

- 04 1.00E

- 04 No Use 2.50E

- 05 No Use No Use No Use No Use 1.00E

- 04

Hay: Grass No Use 2.49E

- 05 No Use No Use No Use No Use No Use No Use No Use

H ay: Non

- Grass No Use 2.49E

- 05 No Use No Use No Use No Use No Use No Use No Use

Cotton 1.00E

- 04 1.00E

- 04 5.02E

- 05 2.50E

- 05 No Use No Use No Use No Use 1.00E

- 04

Sunflower 2.50E

- 05 2.50E

- 05 No Use 2.50E

- 05 No Use No Use No Use 2.50E

- 05 2.50E

- 05

Mustard 1. 00E

- 04 1.00E

- 04 No Use 2.50E

- 05 No Use No Use No Use 5.78E

- 05 1.00E

- 04

Rape (Canola) 1.00E

- 04 1.00E

- 04 No Use 2.50E

- 05 No Use No Use No Use 5.78E

- 05 1.00E

- 04

Ornamental

flowers :

Perennials 1.00E

- 04 1.00E

- 04 No Use No Use No Use No Use No Use 5.78E

- 05 1. 00E

- 04

Ornamental

flowers : Annual 1.00E

- 04 1.00E

- 04 No Use No Use No Use No Use No Use 5.78E

- 05 1.00E

- 04

Conifer 1.00E

- 04 1.00E

- 04 No Use No Use No Use No Use No Use No Use 1.00E

- 04

Turf Grass 2.50E

- 05 2.50E

- 05 No Use No Use No Use No Use No Use 2.50E

- 05 2.50E

- 05

Peanuts 2.50E

- 05 No Use No Use No Use No Use No Use No Use 2.50E

- 05 2.50E

- 05

Soybean 2.50E

- 05 No Use No Use No Use No Use 2.50E

- 05 2.50E

- 05 2.50E

- 05 2.50E

- 05

Grains 2.50E

- 05 No Use No Use No Use No Use No Use No Use 2.50E

- 05 2.50E

- 05

Corn (field) 2.50E

- 05 2.50E

- 05 No Use 2.50E

- 05 No Use No Use No Use 2.50E

- 05 2.50E

- 05

Corn (Sweet) 2.50E

- 05 2.50E

- 05 No Use 2.50E

- 05 No Use No Use No Use 2.50E

- 05 2.50E

- 05
Corn (All or Not specified) See Above 2.50E

- 05 2.50E

- 05 2.50E

- 05 2.50E

- 05 No Use No Use 2.50E

- 05 2.50E

- 05

Millet 2.50E

- 05 No Use No Use No Use No Use No Use No Use 2.50E

- 05 2.50E

- 05

Sorghum 5.01E

- 05 4.98E

- 05 1.00E

- 04 5.00E

- 05 No Use No Use No Use 5.0 0 E

- 05 5.01E

- 05

Beans (Dry) 2.50E

- 05 No Use No Use No Use No Use No Use No Use 2.49 E

- 05 2.5 0E

- 05

Peas (Dry) 2.50E

- 05 No Use No Use No Use No Use No Use No Use 2.49 E

- 05 2.50E

- 05

Beans & Peas (All) 2.50E

- 05 No Use No Use No Use No Use No Use No Use No Use No Use

1 Product Name Abbreviations New Label= Rancona 3.8FS ( CHEM

- R label modified) ; Baye r
- V1 = Vortex; Bayer

- IM = Ipconazole Metalaxyl Md (S); Bayer

- V2 = Vortex 2000; Bayer

- TWV = Three

- Way Vap; Valent

- 1 = Innovate Seed Protectant; Valent

- 2 = Innovate Neutral Seed
Protectant; CHEM

- IT = Ipconazole/ Thiram 10/350 FS; CHEM

- R = Rancona 3.8FS**6** 

### Table 3 S ummary of use patterns for the current labels of ipconazole

Products/Crops CHEM

- A P CHEM

- RP CHEM

- S CHEM

- XTR CHEM

- CW CHEM

- C CHEM

- RS CHEM

XTRP CHEM

CTS a.i/fl. Oz Product 0.0002969 0.000301 0.000625 0.000716 0.000301 0.0003 0.000609 0.000716 0.0016328

Veget ables: Root

& Tuber No Use No Use No Use No Use No Use No Use No Use No Use No Use

Vegetables: Leafy No Use No Use No Use No Use No Use No Use No Use No Use No Use Vegetables:

Brassica No Use No Use No Use No Use No Use No Use No Use No Use No Use Veget ables:

Cucurbits No Use No Use No Use No Use No Use No Use No Use No Use No Use

Hay: Grass No Use No Use No Use No Use No Use No Use No Use No Use No Use

Hay: Non

- Grass No Use No Use No Use No Use No Use No Use No Use No Use No Use

Cotton No Use No Use No Use No Use No Use No Use No Use No Use No Use

Sunflower No Use No Use No Use No Use No Use No Use No Use No Use No Use

Mustard No Use No Use No Use No Use No Use No Use No Use No Use No Use

Rape (Canola) No Use No Use No Use No Use No Use No Use 7.5 0E

- 05 No Use No Use

Ornamental

flowers : Perennials No Use No Use No Use No Use No Use No Use No Use No Use No Use

Ornamental

flowers : Annual No Use No Use No Use No Use No Use No Use No Use No Use No Use

Conifer No Use No Use No Use No Use No Use No U se No Use No Use No Use

Turf Grass No Use No Use No Use No Use No Use No Use No Use No Use No Use

Peanuts No Use No Use No Use No Use No Use No Use No Use No Use No Use

Soybean No Use No Use No Use 2.50E

- 05 No Use No Use No Use 2.50E

- 05 2.50E

- 05

Grain s 2.47E

- 05 2.51E

- 05 2.50E

- 05 No Use 2.51E

- 05 2.50E

- 05 No Use No Use No Use

Corn (field) No Use No Use No Use No Use No Use No Use No Use No Use No Use

Corn (Sweet) No Use No Use No Use No Use No Use No Use No Use No Use No Use Corn (All or Not specified ) 2.47E

- 05 No Use No Use No Use No Use No Use No Use No Use No Use

Millet 2.47E

- 05 No Use No Use No Use No Use No Use No Use No Use No Use

Sorghum 2.47E

- 05 2.51E

- 05 No Use No Use No Use No Use No Use No Use 2.50E

- 05

Beans (Dry) No Use No Use 2.50E

- 05 2. 50E

- 05 No Use No Use No Use 2.50E

- 05 2.50E

- 05

Peas (Dry) No Use No Use 2.50E

- 05 2.50E

- 05 No Use No Use No Use 2.50E

- 05 2.50E

- 05

Beans & Peas (All) No Use No Use No Use No Use No Use No Use No Use No Use No Use

1 Product Name Abbreviations : CHEM

- AP = Ranc ona Apex; CHEM

- RP = Rancona Pinnacle; CHEM

- S = Rancona Summit; CHEM

- XTR = Rancona Xxtra; CHEM

- CW = Rancona Crest WR; CHEM

- C = Rancona Crest; CHEM

- RS = Rancona RS; CHEM

- XTRP = Rancona Xxtra Pro; and CHEM

- CTS = Rancona CTS Seed Protectan t



### A review of previ ous drinking water assessments reveals that the application parameters used in theses assessment were generally in line with the current labels for ipconazole with the following exceptions: (1) Previous assessments fail to follow the labels upon which the ass essments were based. For example, a pplication rates for all vegetables should have been 1 .00 E

- 04 instead of 2.50E

- 0 5**7** 

### and application rates for mustard and rape should have been 1.00 E

- 04 instead of 9.96E

- 05 (minor difference) ; (2) Ornamental flowers, conifer and turf grass were not assessed; (3) Some of the crops

, within the crop group s, was not considered for modeling (e.g., rutabaga, turnip ginseng , parsley, collards, kale, Brussels sprout, some melons, and lupines);

In addition, the newly published BEAD seed ing rates were mostly higher than those used in previous assessments. Therefore, this revised drinking water assessment was necessary as it corrects a.i and seeding rates as well as it includes all crops and the requested change for Rancona

3.8FS label

. Ta ble 4 summarizes the differences between previous drinking water assessments

and this assessment.

Table 4 Comparison s ummary between previous drinking water assessments and this risk

assessment (differences highlighted in red )

Use Pattern Previous Drink ing Water Assessments This Drinking Water Assessment

Maximum Rates Maximum Rates lbs a.i/One lb of
Seed lbs Seeds/A (Seeding Rate) lbs a.i/A lbs a.i/One lb of Seed lbs Seeds/A (Seeding Rate) lbs a.i/A

Vegetables: Root & Tuber 2.49E

- 05 12.00 2.99E

- 04 1 .00E

- 04 100.00 1.00E

- 02 Vegetables: Leafy 2.49E

- 05 15.00 3.74E

- 04 1.00E

- 04 40.00 4.00E

- 03 Vegetables: Brassica 9.96E

- 05 5.00 4.98E

- 04 1.00E

- 04 6.00 6.00E

- 04 Vegetables: Cucurbits 2.49E

- 05 6.00 1.49E

- 04 1.00E

- 04 11.62 1.16E

- 03 Hay: Grass 2.49E

- 05 91.12 2.27E

- 03 2.49E

- 05 16.00 3.98E

- 04 Hay: Non

- Grass 2.50E

- 05 30.00 7.50E

- 04 2.50E

- 05 60.00 1.50 E

- 0 3

Cotton 1.00E

- 04 18.00 1.80E

- 03 1.00E

- 04 18.89 1.89E

- 03

Sunflower 2.50E

- 05 4.00 1.00E

- 04 2.50E

- 05 4.00 1.00E

- 04

Mustard 9.96E

- 05 15.00 1.49E

- 03 1.00E

- 04 7 .00 7.00E

- 04 Rape (Canola) 9.96E

- 05 6.00 5.98E

- 04 1.00E

- 04 8.23 8.23E

- 04

Ornamental flowers : Perennials Not Assessed Not Assessed Not Assessed 1.00E

- 04 4.00 4.00E

- 04

Ornamental flowers : Annual Not Assessed Not Assessed Not Assessed 1.00E

- 04 3.60 3.60E

- 04

Conifer Not Assessed Not Assessed Not Assessed 1.00E

- 04 5.00 5.00E

- 04

Turf Grass Not Assessed Not Assessed Not Assessed 2.50E

- 05 9.00 2.25E

- 04

Peanuts 2.50E

- 05 135.00 3.38E

- 03 2.50E

- 05 228.26 5.71E

- 03 Soybean 2.50E

- 05 100.00 2.50E

- 03 2.50E

- 05 166. 70 4.17E

- 03

Grains 2.50E

- 05 150 3.75E

- 03 2.51E

- 05 156.00 3.92E

- 03 Corn (field & pop) 2.50E

- 05 Not Assessed Not Assessed 2.50E

- 05 29.00 7.25E

- 04 Corn (Sweet) 2.50E

- 05 2.00 5.00E

- 05 2.50E

- 05 22.04 5.51E

- 04 Corn ( All or Not specified) 2.50E

- 05 25.00 6.25E

- 04 2.50E

- 05 3 5 .00 8. 79 E

- 04 Sorghum 5.05E

- 05 12.00 6.06E

- 04 1.00E

- 04 12.00 1.20E

- 03 Beans (Dry) 2.50E

- 05 160.00 4.00E

- 03 2.50E

- 05 163.35 4.08E

- 03 Peas (Dry) 2.50E

- 05 180.00 4.50E

- 03 2.50E

- 05 217.80 5.45E

- 03 Beans & Peas (All) Was not labeled Not Assess ed Not Assessed 2.50E

- 05 435.60 1.09 E

- 0 2



### It is also noted that t here appear to be problems associated with some of the labels; these problems/suggested solution can be summarized as follows:**8** 

### (1) Ipconazole Metalaxyl MD (S) label: T he density of the formulat ion or the contents in lbs

a. i/gallon was not stated (for this assessment : it was assumed to be 1.0688 lbs a.i/gallon);

(2) Three

- Way Vap label: States that application to “Corn (sweet, field, pop): 0.262 mg a.i./Kernel or 1. 45 fl oz or 42.9 mL / 80,000 Seed Un it (for the comparison below: the rate was taken to equal a maximum of 3.11 fl oz of product/100 lbs seeds which is equal to

2.50E

- 03 a.i/100 lbs of seeds . EFED recommends using a product rate per 100 lbs of seeds

and omitting all other rates as it is con fusing, the rate is to be suggested by the registrant and could be as high as 3.11 fl oz of product/100 lbs seeds , which is similar to other labels ) ). The statement may reads as follows “ Corn (sweet, field, pop): 0.262 mg a.i./Kernel or “Could be

up to 3. 11 fl oz or 42.9 mL / 100 lbs 80,000 Seed Unit ” ; and

(3) Vortex 2000 label: States “ CORN includes Field Corn and Popcorn (Forage and silage): apply 0.125 or 0.25 fl oz of Vortex® 2000 per 100 pounds of seed. Product can be applied on a per seed basis at a rate range of 0.06

- 0.0625 or 0.12

- 0.125 fI oz per 80,000 units of corn seed. SWEET CORN: apply 0.25 fl oz of VORTE )(® 2000 per 100 pounds of seed”. Due to the problems specified above for calculating per seed unit, it is assumed that the label will be chang ed to read: “ CORN includes Field Corn and Popcorn (Forage and silage): apply 0.125 or 0.25 fl oz of Vortex® 2000 per 100 pounds of seed. Product can be applied on a per seed basis at a rate range of 0.06

- 0.0625 or 0.12

- 0.125 fI oz per 80,000 unit of co rn seed. SWEET CORN: apply 0.25 fl oz of VORTE )(® 2000 per 100 pounds of seed”.

It is noted that although the rates per seed might be accurate, it is recommended that the rate per

100 lbs of seeds is used instead.

This assessment is based on the assump tion that the above mentioned problems with the labels

are to be corrected. It is also assumed that the label for treated seed bags will specify “ No
broadcast seeding ”

.**9** 

## II. Surface Water Modeling

Surface water exposure was modeled using Tier II PRAZM/EXAMS and EXPRESS shell. Parameters used in modeling runs were as follows:

(1) Application rate and associated parameters

T he maximum active rate (lbs a.i/lb s eeds ) was calculated from the label. Additionally, the crops seeding rates were obtained from BEAD while crop seeding depths were obtained from the

literature. For each crop a scenario or surrogate scenario was chosen and the required active rate calculated by multiplying active rate (lbs a.i/lb s eeds ) by seeding rate (lbs seeds/A). For example,

the active ra te in lbs a.i/A for rutabaga= 1.00E

- 04 multiplied by 2.00= 2.00E

- 04 ( Table 5 ).

Table 5 Label and other parameters used for PRZM/EXAMS modeling (Crops, within each crop group, with the maximum application rate in lbs a.i/A are highlighted in bold/red )

Crop Group Crop Scenario Minimum Seeding Depth (cm) Active Rate:
lbs a.i/lb Seeds Seeding

Rate: lbs

Seeds/A Active
Rate: lbs

a.i/A

Vegetables: Root & Tuber Rutabaga ME_potatoe 1.27 1.00E

- 04 2.00 2.00E

- 04

Vegetables: Root & Tuber Rutabaga ID_potato 1.27 1.00E

- 04 2.00 2.00E

- 04

Vegetables: Root & Tuber Rutabaga NC sweet potato 1.27 1.00E

- 04 2.00 2.00E

- 04

Vegetables: Root & Tuber Turnip ME_potatoe 1.27 1.00E

- 04 6.00 6.00E

- 04

Vegetables: Root & Tuber Turnip ID_potato 1.27 1.00E

- 04 6.00 6.00E

- 04

Vegetables: Roo t & Tuber Turnip NC sweet potato 1.27 1.00E

- 04 6.00 6.00E

- 04

Vegetables: Root & Tuber Carrot FLcarrotSTD 0.32 1.00E

- 04 11.95 1.20E

- 03

Vegetables: Root & Tuber Beets (sugar/garden) MNsugarbeetSTD 1.27 1.00E

- 04 19.80 1.98E

- 03

Vegetables: Root & Tuber Rad ish GAOnion_WirrigSTD 0.64 1.00E

- 04 32.60 3.26E

- 03

Vegetables: Root & Tuber Radish CAonion_WirrigSTD 0.64 1.00E

- 04 32.60 3.26E

- 03

Vegetables: Root & Tuber Ginseng MNsugarbeetSTD 1.27 1.00E

- 04 100.00 1.00E

- 02

Vegetables: Leafy Lettuce & Celery CAlettuceS TD 0.64 1.00E

- 04 0.78 7.80E

- 05

Vegetables: Leafy Spinach CAlettuceSTD 1.27 1.00E

- 04 25.00 2.50E

- 03

Vegetables: Leafy Parsley ORmintSTD 0.64 1.00E

- 04 40.00 4.00E

- 03

Vegetables: Brassica Cauliflower FLcabbageSTD 0.64 1.00E

- 04 0.29 2.90E

- 05

Vegetables: Br assica Brussels sprout FLcabbageSTD 0.64 1.00E

- 04 0.44 4.40E

- 05

Vegetables: Brassica Cabbage FLcabbageSTD 0.64 1.00E

- 04 2.18 2.18E

- 04

Vegetables: Brassica Broccoli FLcabbageSTD 0.64 1.00E

- 04 4.00 4.00E

- 04

Vegetables: Brassica Kale FLcabbageSTD 0.64 1.00 E

- 04 5.75 5.75E

- 04

Vegetables: Brassica Mustrad green FLcabbageSTD 0.64 1.00E

- 04 6.00 6.00E

- 04

Vegetables: Cucurbits Melons (all) FL cucumber 1.27 1.00E

- 04 2.18 2.18E

- 04

Vegetables: Cucurbits Melons (all) MI melon 1.27 1.00E

- 04 2.18 2.18E

- 04

Vegetables : Cucurbits Melons (all) MO melon 1.27 1.00E

- 04 2.18 2.18E

- 04**10** Crop Group Crop Scenario Minimum Seeding Depth (cm) Active Rate:
lbs a.i/lb Seeds Seeding

Rate: lbs

Seeds/A Active
Rate: lbs

a.i/A

Vegetables: Cucurbits Melons (all) NJ melon 1.27 1.00E

- 04 2.18 2.18E

- 04

Vegetables: Cucurbits Melons (all) CA melon 1.27 1.00E

- 04 2.18 2.18E

- 04

Vegetables: Cucurbits Pumpkin FL cucumber 1.27 1.00E

- 04 4.54 4.54E

- 04

Vegetables: Cucurbits Pumpkin MI melon 1.27 1.00E

- 04 4.54 4.54E

- 04

Vegetables: Cucurbits Pumpkin MO melon 1.27 1.00E

- 04 4.54 4.54E

- 04

Vegetables: Cucurbits Pumpkin NJ melon 1.27 1.00E

- 04 4.54 4.54E

- 04

Vegetables: Cucurbits Pumpki n CA melon 1.27 1.00E

- 04 4.54 4.54E

- 04

Vegetables: Cucurbits Squash FL cucumber 1.27 1.00E

- 04 8.01 8.01E

- 04

Vegetables: Cucurbits Squash MI melon 1.27 1.00E

- 04 8.01 8.01E

- 04

Vegetables: Cucurbits Squash MO melon 1.27 1.00E

- 04 8.01 8.01E

- 04

Vegetables: Cucurbits Squash NJ melon 1.27 1.00E

- 04 8.01 8.01E

- 04

Vegetables: Cucurbits Squash CA melon 1.27 1.00E

- 04 8.01 8.01E

- 04

Vegetables: Cucurbits Cucumber FL cucumber 1.27 1.00E

- 04 11.62 1.16E

- 03

Vegetables: Cucurbits Cucumber MI melon 1.27 1.00E

- 04 11.62 1 .16E

- 03

Vegetables: Cucurbits Cucumber MO melon 1.27 1.00E

- 04 11.62 1.16E

- 03

Vegetables: Cucurbits Cucumber NJ melon 1.27 1.00E

- 04 11.62 1.16E

- 03

Vegetables: Cucurbits Cucumber C A melon 1.27 1.00E

- 04 11.62 1.16E

- 03

Hay(Animal feed): Grass Bermuda ORgr assseedSTD 0.64 2.49E

- 05 8.00 1.99E

- 04

Hay(Animal feed): Grass Swithch ORgrassseedSTD 0.64 2.49E

- 05 9.00 2.24E

- 04

Hay(Animal feed): Grass Blue/Rye ORgrassseedSTD 0.64 2.49E

- 05 10.00 2.49E

- 04

Hay(Animal feed): Grass Tall fescue ORgrassseedSTD 0.64 2.49E

- 05 15.00 3.74E

- 04

Hay(Animal feed): Grass Brome ORgrassseedSTD 0.64 2.49E

- 05 16.00 3.98E

- 04

Hay(Animal feed): Non

- grass Alfalfa TXalfalfaOP 2.54 2.50E

- 05 15.00 3.75E

- 04

Hay(Animal feed): Non

- grass Alfalfa ILalfalfaNMC 2.54 2.50E

- 05 15.00 3.75E

- 04

Hay(A nimal feed): Non

- grass Alfalfa NCalfalfaOP 2.54 2.50E

- 05 15.00 3.75E

- 04

Hay(Animal feed): Non

- grass Alfalfa PAalfalfaOP 2.54 2.50E

- 05 15.00 3.75E

- 04

Hay(Animal feed): Non

- grass Alfalfa CAalfalfa_WirrigOP 2.54 2.50E

- 05 15.00 3.75E

- 04

Hay(Animal feed): No n

- grass Alfalfa MNalfalfaOP 2.54 2.50E

- 05 15.00 3.75E

- 04

Hay(Animal feed): Non

- grass Sweet clover TXalfalfaOP 2.54 2.50E

- 05 30.00 7.50E

- 04

Hay(Animal feed): Non

- grass Sweet clover ILalfalfaNMC 2.54 2.50E

- 05 30.00 7.50E

- 04

Hay(Animal feed): Non

- grass Swe et clover NCalfalfaOP 2.54 2.50E

- 05 30.00 7.50E

- 04

Hay(Animal feed): Non

- grass Sweet clover PAalfalfaOP 2.54 2.50E

- 05 30.00 7.50E

- 04

Hay(Animal feed): Non

- grass Sweet clover CAalfalfa_WirrigOP 2.54 2.50E

- 05 30.00 7.50E

- 04

Hay(Animal feed): Non

- grass Swe et clover MNalfalfaOP 2.54 2.50E

- 05 30.00 7.50E

- 04

Hay(Animal feed): Non

- grass vetch TXalfalfaOP 2.54 2.50E

- 05 60.00 1.50E

- 03**11** Crop Group Crop Scenario Minimum Seeding Depth (cm) Active Rate:
lbs a.i/lb Seeds Seeding

Rate: lbs

Seeds/A Active
Rate: lbs

a.i/A

Hay(Animal feed): Non

- grass vetch ILalfalfaNMC 2.54 2.50E

- 05 60.00 1.50E

- 03

Hay(Animal feed): Non

- grass vetch NCalfalfaOP 2.54 2.50E

- 05 60.00 1.50E

- 03

Hay(Animal feed): Non

- grass vetch PAalfalfaOP 2.54 2.50E

- 05 60.00 1.50E

- 03

Hay(Animal feed): Non

- grass vetch CAalfalfa_WirrigOP 2.54 2.50E

- 05 60.00 1.50E

- 03

Hay(Animal feed): Non

- grass vetch MNalfalfaOP 2.54 2.50E

- 05 60.00 1.50E

- 03

Cotton Cotton MScottonSTD 1.27 1.00E

- 04 18.89 1.89E

- 03

Cotton Cotton NCcottonSTD 1.27 1.00E

- 04 18.89 1.89E

- 03

Cotton Cotton CAcotton_WirrigSTD 1.27 1.00E

- 04 18.89 1.89E

- 03

Sunflower Sunflower OHCornSTD 2.54 2.50E

- 05 4.00 1.00E

- 04

Sunflower Sunflowe r MScornSTD 2.54 2.50E

- 05 4.00 1.00E

- 04

Sunflower Sunflower NCcornESTD 2.54 2.50E

- 05 4.00 1.00E

- 04

Sunflower Sunflower ILCornSTD 2.54 2.50E

- 05 4.00 1.00E

- 04

Sunflower Sunflower PAcornSTD 2.54 2.50E

- 05 4.00 1.00E

- 04

Mustard Mustard FLcabbageSTD 0.64 1.0 0E

- 04 7.00 7.00E

- 04

Rape (Canola) Rape (Canola) NDcanolaSTD 0.64 1.00E

- 04 8.23 8.23E

- 04

Ornamental flowers Perennial CA nursery 0.64 1.00E

- 04 4.00 4.00E

- 04

Ornamental flowers Perennial FL nursery 0.64 1.00E

- 04 4.00 4.00E

- 04

Ornamental flowers Perennial MI nursery 0.64 1.00E

- 04 4.00 4.00E

- 04

Ornamental flowers Perennial NJ nursery 0.64 1.00E

- 04 4.00 4.00E

- 04

Ornamental flowers Perennial OR nursery 0.64 1.00E

- 04 4.00 4.00E

- 04

Ornamental flowers Perennial TN nursery 0.64 1.00E

- 04 4.00 4.00E

- 04

Ornament al flowers Annual CA nursery 0.64 1.00E

- 04 3.60 3.60E

- 04

Ornamental flowers Annual FL nursery 0.64 1.00E

- 04 3.60 3.60E

- 04

Ornamental flowers Annual MI nursery 0.64 1.00E

- 04 3.60 3.60E

- 04

Ornamental flowers Annual NJ nursery 0.64 1.00E

- 04 3.60 3.60E

- 04

Ornamental flowers Annual OR nursery 0.64 1.00E

- 04 3.60 3.60E

- 04

Ornamental flowers Annual TN nursery 0.64 1.00E

- 04 3.60 3.60E

- 04

Conifers Conifers ORXmasTreeSTD 2.54 1.00E

- 04 5.00 5.00E

- 04

Turf Grass Tall fescue FL turfSTD 0.64 2.50E

- 05 9.00 2.25 E

- 04

Turf Grass Tall fescue FL turfSTD 0.64 2.50E

- 05 9.00 2.25E

- 04

Peanuts Peanuts NC peanutSTD 3.81 2.50E

- 05 228.26 5.71E

- 03

Soybean Edamame MSsoybeanSTD 1.91 2.50E

- 05 60.31 1.51E

- 03

Soybean Soybean MSsoybeanSTD 1.91 2.50E

- 05 166.67 4.17E

- 03

Grains ( cereals) Millet NDwheatSTD 2.54 2.51E

- 05 30.00 7.53E

- 04

Grains (cereals) Buckwheat NDwheatSTD 2.54 2.51E

- 05 72.00 1.81E

- 03

Grains (cereals) Oats NDwheatSTD 2.54 2.51E

- 05 90.00 2.26E

- 03**12** Crop Group Crop Scenario Minimum Seeding Depth (cm) Active Rate:
lbs a.i/lb Seeds Seeding

Rate: lbs

Seeds/A Active
Rate: lbs

a.i/A

Grains (cereals) Triticali/Rye NDwheatSTD 2.54 2.51E

- 05 109.00 2.74E

- 03

Grains (cereals) Baley NDwheatSTD 2.54 2.51E

- 05 138.30 3.47E

- 03

Grains (cereals) Wheat NDwheatSTD 2.54 2.51E

- 05 156.00 3.92E

- 03

Corn (Field & Pop) Field & Pop OHCornSTD 3.81 2.50E

- 05 29.00 7.25E

- 04

Corn (Field & Pop) Field & Pop MScornSTD 3.81 2.5 0E

- 05 29.00 7.25E

- 04

Corn (Field & Pop) Field & Pop NCcornESTD 3.81 2.50E

- 05 29.00 7.25E

- 04

Corn (Field & Pop) Field & Pop ILCornSTD 3.81 2.50E

- 05 29.00 7.25E

- 04

Corn (Field & Pop) Field & Pop PAcornSTD 3.81 2.50E

- 05 29.00 7.25E

- 04

Corn sweet OHCornST D 3.81 2.50E

- 05 22.04 5.51E

- 04

Corn sweet MScornSTD 3.81 2.50E

- 05 22.04 5.51E

- 04

Corn sweet NCcornESTD 3.81 2.50E

- 05 22.04 5.51E

- 04

Corn sweet ILCornSTD 3.81 2.50E

- 05 22.04 5.51E

- 04

Corn sweet PAcornSTD 3.81 2.50E

- 05 22.04 5.51E

- 04

Corn (not speci fied) Corn (not specified) OHCornSTD 3.81 2.51E

- 05 35.00 8.79E

- 04

Corn (not specified) Corn (not specified) MScornSTD 3.81 2.51E

- 05 35.00 8.79E

- 04

Corn (not specified) Corn (not specified) NCcornESTD 3.81 2.51E

- 05 35.00 8.79E

- 04

Corn (not specified) Cor n (not specified) ILCornSTD 3.81 2.51E

- 05 35.00 8.79E

- 04

Corn (not specified) Corn (not specified) PAcornSTD 3.81 2.51E

- 05 35.00 8.79E

- 04

Sorghum Sorghum KSsorghumSTD 1.91 1.00E

- 04 12.00 1.20E

- 03

Legumes: Beans (Dry) Lima bean MIbeansSTD 2.54 2.50E

- 05 1 04.79 2.62E

- 03

Legumes: Beans (Dry) Lima bean ORsnbeansSTD 2.54 2.50E

- 05 104.79 2.62E

- 03

Legumes: Beans (Dry) Lima bean ILbeansNMC 2.54 2.50E

- 05 104.79 2.62E

- 03

Legumes: Beans (Dry) Lima bean WAbeansNMC 2.54 2.50E

- 05 104.79 2.62E

- 03

Legumes: Beans (Dry ) Lima bean ORsnbeansSTD 2.54 2.50E

- 05 104.79 2.62E

- 03

Legumes: Beans (Dry) lupine (white) MIbeansSTD 2.54 2.50E

- 05 160.00 4.00E

- 03

Legumes: Beans (Dry) lupine (white) ORsnbeansSTD 2.54 2.50E

- 05 160.00 4.00E

- 03

Legumes: Beans (Dry) lupine (white) ILbean sNMC 2.54 2.50E

- 05 160.00 4.00E

- 03

Legumes: Beans (Dry) lupine (white) WAbeansNMC 2.54 2.50E

- 05 160.00 4.00E

- 03

Legumes: Beans (Dry) lupine (white) ORsnbeansSTD 2.54 2.50E

- 05 160.00 4.00E

- 03

Legumes: Beans (All) Common or dry bean MIbeansSTD 2.54 2.50E

- 05 163.35 4.08E

- 03

Legumes: Beans (Dry) Common or dry bean ORsnbeansSTD 2.54 2.50E

- 05 163.35 4.08E

- 03

Legumes: Beans (Dry) Common or dry bean ILbeansNMC 2.54 2.50E

- 05 163.35 4.08E

- 03

Legumes: Beans (Dry) Common or dry bean WAbeansNMC 2.54 2.50E

- 05 163.3 5 4.08E

- 03

Legumes: Beans (Dry) Common or dry bean ORsnbeansSTD 2.54 2.50E

- 05 163.35 4.08E

- 03

Legumes:Peas (Dry) Southern pea MIbeansSTD 2.54 2.50E

- 05 43.56 1.09E

- 03

Legumes:Peas (Dry) Southern pea ORsnbeansSTD 2.54 2.50E

- 05 43.56 1.09E

- 03**13** Crop Group Crop Scenario Minimum Seeding Depth (cm) Active Rate:
lbs a.i/lb Seeds Seeding

Rate: lbs

Seeds/A Active
Rate: lbs

a.i/A

Legumes:Pe as (Dry) Southern pea ILbeansNMC 2.54 2.50E

- 05 43.56 1.09E

- 03

Legumes:Peas (Dry) Southern pea WAbeansNMC 2.54 2.50E

- 05 43.56 1.09E

- 03

Legumes:Peas (Dry) Southern pea ORsnbeansSTD 2.54 2.50E

- 05 43.56 1.09E

- 03

Legumes:Peas (Dry) Pea, field MIbeansSTD 2.54 2.50E

- 05 217.8 5.45E

- 03

Legumes:Peas (Dry) Pea, field ORsnbeansSTD 2.54 2.50E

- 05 217.8 5.45E

- 03

Legumes:Peas (Dry) Pea, field ILbeansNMC 2.54 2.50E

- 05 217.8 5.45E

- 03

Legumes:Peas (Dry) Pea, field WAbeansNMC 2.54 2.50E

- 05 217.8 5.45E

- 03

Legumes: Peas (Dry) Pea, field ORsnbeansSTD 2.54 2.50E

- 05 217.8 5.45E

- 03

Legumes:Peas (All) Pea, garden MIbeansSTD 2.54 2.50E

- 05 384.07 9.60E

- 03

Legumes:Peas (All) Pea, garden ORsnbeansSTD 2.54 2.50E

- 05 384.07 9.60E

- 03

Legumes:Peas (All) Pea, garden ILbeansNMC 2.54 2.50E

- 05 384.07 9.60E

- 03

Legumes:Peas (All) Pea, garden WAbeansNMC 2.54 2.50E

- 05 384.07 9.60E

- 03

Legumes:Peas (All) Pea, garden ORsnbeansSTD 2.54 2.50E

- 05 384.07 9.60E

- 03

Legumes: Beans (All) Beans, succulent green MIbeansSTD 2.54 2.50E

- 05 435.60 1.09E

- 02

Legumes: Beans (All) Beans, succulent green ORsnbeansSTD 2.54 2.50E

- 05 435.60 1.09E

- 02

Legumes: Beans (All) Beans, succulent green ILbeansNMC 2.54 2.50E

- 05 435.60 1.09E

- 02

Legumes: Beans (All) Beans, succulent green WAbeansNMC 2.54 2.50E

- 05 435.60 1.09E

- 02

Legumes: Beans (All) Beans, succulent G reen ORsnbeansSTD 2.54 2.50E

- 05 435.60 1.09E

- 02



### (2) Other parameters used for modeling:

Table 6 contains a list of the chemical parameters used in modeling surface water exposure for ipconazole. To r epresent application with buried seeds, CAM used was 8 for all the scenario runs

with 0% drift and 100% efficiency.

Table 6 Ipconazole chemical parameters used in PRZM/EXAMS modeling for surface water

Parameter 1 Value Data Source/Comments

Application Rat e Refer to Table 5 , above Maximum Label rate for Ginseng

Molecular Weight (g mole - 1 ) 333.90

Solubility (ppm) 6.93

Koc (mL/g O.C) 2

, 428 Average value ; MRID 4554220

- 25

Soil Metabolism Half

- life (days) 2,483 90 th percentile half

- life ; MRIDs: 455422

- 24

and 46008402 . Half

- lives= 1,386 and 330 d

Vapor Pressure (torr) 1.58E

- 08 Chemical Data

Water Column Half

- life (days) 4,966 Aerobic soil half

- life X 2= 2,483 x 2= 4,966

Benthic Sediment Half

- life (days) Stable Anaerobic Aquatic half

- life

Hydrolysis Ha lf

- life at pH 7 (days) 495 MRID 455422

- 2 1**14** Parameter 1 Value Data Source/Comments

Aquatic Direct Photolysis Hal

- life (days) 64 MRID 455422

- 2 2

Number of Applications 1 Seed Treatment

Application Date(s) At planting Seed Treatment

CAM (chemical Application Model) 8 Assume 1 because no run

- of f in this model

Depth of incorporation (cm) Refer to Table 5 , above

1 

### As per Guidance: URL: http://www.epa.gov/oppefed1/models/water/input_parameter_guidanc e.htm#guidance

The results for all runs are summarized in Figure 1

.

Figure 1 Modeled surface water EDWCs for all current uses of ipconazole including the new use

0.000 0.020 0.040 0.060 0.080 0.100 0.120 0.140 0.160 0.180Root & TuberLeafy VegetablesBrasssicaCucurbitsHay: GrassHay: Non-grassCottonSunflowerMustardCanolaOrnamentals 1Ornamental 2ConifersTurf GrassPeanutsSoybeanGrains (cereals)CornSorghumLegumes 

### Peak Annual Long

- Term**15** 

## III. Ground Water Modeling
As per current EFED policy, ground water exposure was modeled u sing Tier I PRAZM

- GW and

SCI

- GROW models. Parameters used in modeling runs were as follows:

(1) Scenarios and application rates and associated parameters:

PRZM

- GW calls for using the six standard scenarios representing vulnerable ground waters, namely: (1) D ELMARVA_STD GW, (2) FLCITRUS_STD GW, (3) FLPOTATO_STD, (4)
GACOASTAL_STD GW, (5) NCCOASTAL _STD , and (6) WISANDS_STD GW. Table 7 contains a summary of the maximum active rate (lbs a.i/A) for all crop use patterns categorized in three application rate categ ories

.

Table 7 M aximum active rate (lbs a.i/A) and expected application dates for ipconazole use

Crop Group Crop Highest Active Rate ( lbs a.i/A )

Category 1 : Range from 0.01 09 (highest rate) to 0.010 0 lb a.i/A Or 0.01 121 to 0.0122 2 kg a.i/ha Legumes Be ans & Peas (All) 1.09E

- 02 0.0109 Vegetables: Root & Tuber Ginseng 1.00 E

- 02 0.0100 Category 2: Range from 0.0057 to 0.0012 lb a.i/A Or 0.00639 to 0.001345 kg a.i/ha

Peanuts Peanuts 5.71E

- 03 0.0057 Soybean Edamme & Soybean 4.17E

- 03 0.0042 Vegetables: Le afy Parsley 4.00E

- 03 0.0040 Grains (cereals) Millet. Buckwheat, Oats, Triticale/Rye, Barley & Wheat 3.92E

- 03 0.0039 Vegetables: Root & Tuber Radish 3.26E

- 03 0.0033 Vegetables: Leafy Lettuce, Celery & Spinach 2.50E

- 03 0.0025 Vegetables: Root & Tuber Be ets (sugar/garden) 1.98E

- 03 0.0020

Cotton Cotton 1.89E

- 03 0.0019 Hay(Animal feed): Non

- grass Alfalfa, Sweet clover & V etch 1.50E

- 03 0.0015 Sorghum Sorghum 1.20E

- 03 0.0012 Vegetables: Root & Tuber Carrot 1.20E

- 03 0.0012 Vegetables: Cucurbits Melons (a ll), Pumpkin, Squash & Cucumber 1.16E

- 03 0.0012 Category 3: Range from 0.0009 to 0.0001 lb a.i/A (lowest Rate) Or 0.001009 to 0.000112 kg a.i/ha

Corn Field & Pop, S weet Or not specified 8.79E

- 04 0.0009 Rape (Canola) Rape (Canola) 8.23E

- 04 0.0008

Mustar d Mustard 7.00E

- 04 0.0007 Vegetables: Brassica Cauliflower, Brussels sprout, Cabbage, Broccoli, Kale & Mustard green 6.00E

- 04 0.0006 Vegetables: Root & Tuber Rutabaga & Turnip 6.00E

- 04 0.0006

Conifers Conifers 5.00E

- 04 0.0005

Ornamental flowers Perenni al/Annual 4.00E

- 04 0.0004 Hay(Animal feed): Grass Bermuda , Switch, Blue/Rye, Tall fescue & Brome 3.98E

- 04 0.0004

Turf Grass Tall fescue 2.25E

- 04 0.0002

Sunflower Sunflower 1.00E

- 04 0.0001**16** 

### Table 7 suggests the following:

• A pplication rate is the hi ghest for category 1 in which the rate for b eans & p eas is 0.0122 2 kg a.i/ha and for ginseng is 0.01 121 kg/h ; a nd

• The highest application rates for categories 2 and 3 are one and two order of magnitude less than category 1.

Due to the fact that applicati on rate is the main driver for expected EECs it was decided to only model the two highest rates for ginseng and b eans & peas. Ginseng was run separately using the

WISAND

- GW scenario because of the unique geographical and agronomic practices for this crop ( refer to note on ginseng, below). However, for b eans & peas all of the six available scenarios were used as per EFED interim policy on PRZM

- GW modeling. Table 8 cation s a summary of important application rate parameters (rate/date of application) for each of the crop/scenarios

combination s used in modeling. Additionally Table 9 contains the chemical specific parameters used in modeling for PRZM

- GW as well as these parameters and the application rate for SCI

GROW (one rate= the highest application rate “ b ean s & peas rate in lbs a.i/A”).

Table 8 Ipconazole application p arameters used for PRZM

- GW modeling

C

rop Application Date s Scenario* Highest Active Rate (Kg a.i/ha )

Ginseng 1 September, 15

WISANDS_STD 0.0 1121 October, 15
November, 15

Beans & Peas (All) 2 June 01 All Six PRZM

GW Scenarios 0.0122 2 Jun e 15

1 Ginseng: One application applied every three years ( fall planting = used three dates),

2 Beans & Peas : One yearly Application at planting date (used two possible dates)



### Table 9 PRZM

- GW and SCI

- GROW input p arameters used for modeling ipconazole

Parameter (units) Input Values

Data Source/Comments PRZM

- G W SCI

- GROW

Application Rate Table 8 , above 0.010 9 lb a.i /A Label

Hydrolysis Half

- life (days) 495 N/A MRID 455422

- 21

Soil Metabolism Ha lf

- life (days) 2,488 858 90 th percentile half

- life for PRZM

- GW ; MRIDs:

455422

- 24 and 46008402 . Half

- lives= 1,386 and

330 days and A verage =Median of the same two
half

- lives for SCI

- GROW
CAM (chemical Application Model) 1 495 N/A Assume 1 because no run

- of f in this model

Koc (mL/g O.C) 2,428 2,512 Average for PRZM

- GW and Median for SCI

GROW (Koc= 3214, 1191,2512,2813, and 2410 ; MRID 4554220

- 25 )**17** 

### Results for PRZM

- GW and SCI

- Grow modeling is summarized in Table 10

.

Table 10 PRZM

- GW and SCIGRO estimated drinking water c oncentrations (EDWCs **μg/L** 

### ) in

g round water resulting from ipconazole use

PRZM

- GW SCI

- GRO W

C

rop Application

Dates Scenario* Highest Daily

Valu e Post Breakthrough Averag e Average Simulation Breakthrough Time
(D ays /Years) Peak and Averag e

Ginseng 1 Sep 15 WISANDS_STD 0.198 0

Incomplete Incomplete

0.00 0 74 Oct 15 WISANDS_STD 0.197 0

Nov 15 WISANDS_STD 0.180 0

Beans & Peas (All ) Jun 01 DELMARVA_STD 1.010 0 0.822 0 20

, 617 d ( 5 7 y )

Jun 01 FLCITRUS_STD 0.812 0 0.782 0 20,112 d ( 55 y )

Jun 01 FLPOTATO_STD 0.0697 Incomplete Incomplete

Jun 01 GACOASTAL_STD 0.0841 Incomplete Incomplete

Jun 01 NCCOASTAL_STD 0.543 0 0.514 0 20

, 927 / d ( 57 y )

Jun 01 WISANDS_STD 0.198 Incomplete Incomplete

Beans & Peas (All ) Jun 15 DELMARVA_STD 1.0100 0.8220 20

, 617 d ( 57 y )

J un 15 FLCITRUS_STD 0.812 0 0.782 0 20,112 d ( 55 y )

Jun 15 FLPOTATO_STD 0.0698 Incomplete Incomplete

Jun 15 GACOASTAL_STD 0.0843 Incomplete Incomplete

Jun 15 NCCOASTAL_STD 0.543 0 0.514 0 20

, 927 / d ( 57 y )

Jun 15 WISANDS_STD 0.569 0 Incomplete Incomp lete



### Notes on Ginseng

American ginseng ( Panax quinquefolium L.) is a perennial herb native to parts of the United States and Canada. The following information is relevant to modeling exposure for this use pattern and was obtained mainly from two worksh op reports 1 

### or as referenced below:

• More than 90% of the cultivated ginseng grown in the U.S. is grown in Wisconsin (400 growers cultivate 2,100 acres of ginseng/2004 report reduced to 150 growers cultivate 1,500 acres in a 2010 report). States having sma ll acreage of mainly wood

- grown ginseng include: WV, NC, NY, and WA and OR.

• There are two types of cultivation for ginseng, namely: Woods

- grown ginseng that takes from 6 to 10 years to mature and Shaded “gardens” which takes 3 to 4 years to mature.

1 

### Pest Management in the Future, A Strategic Plan for the Michigan and Wisconsin Ginseng Industry , Workshop Summaries December 6, 2010 and April 13, 2004 (two publications), Michigan State University

, East Lansing, Michigan

. Prepared by Dr. Mary K. Hausbeck , ( E

- mail:

hausbec1@msu.edu ).**18** 

### Cu ltiva ted ginseng is grown in raised mulched beds under shaded conditions imitating forest shade. The latter type is mainly established by planting stratified seeds although it may be established by planting roots.

• Production of shaded “gardens” ginseng is conce ntrated in the north

- central part of the

state of Wisconsin (Marathon County) but 37 although other Wisconsin counties also have acreage devoted to ginseng cultivation ( Figure 1)

.

• Production of Woods

- grown ginseng is small. For example, the total acreage in Michigan

is nearly 135 acres and is located in Michigan’s Upper Peninsula (Houghton County).

• The preferred times for sowing stratified seed are October and November. The seeds are sowed 0.5 to 1" deep in rows 6 or 8 inches apart and most growers report sowing 50 to l00 pounds of seed per acre 2 

### (Th is maximum i s similar to BEAD ’ s seeding rate). It is noted that the general timeline for seeding ginseng was reported to be mid July to end of

October 1



### • Ginseng tolerates a wide variety of soil types, although he avy clay or light sandy soils should be avoided. Ideal soils are loams with high organic matter content 3



### .

2 

### http://www.hort.purdue.edu/newcrop/newcropsnews/94

- 4

- 1/ginseng.html http://www.hort.purdue.edu/newcrop/afcm/g inseng.html

3 

### http://www.ces.ncsu.edu/depts/hort/hil/pdf/ag

- 323.pdf**19** 

### Figure 1 Main area of ginseng cultivation and its proximity to the central Wisconsin sand area