**U. S. ENVIRONMENTAL PROTECTION AGENCY Washington, D.C. 20460** 

OFFICE OF PREVENTION, PESTICIDES AND TOXIC SUBSTANCES **Date:** September 2 , 20 14 **PC Code** : 124002 **DP Barcode** : 41 8740 **MEMORANDUM Subject:**  Drinking Water Assessment in Support of IR

- 4 New and Revised Use s of

Novaluron (RIMON ® 0.83 EC) on Avocado; Beans, Berries (Low

Growing), Bushberries, Carrot; Cotton, Cucurbit Vegetables, Fruiting Vegetables, Head and Stem Brassica, Leafy Brassica Greens, Ornamentals (Co ntainer Grown Ornamentals in Greenhouses, Shadehous es, Outdoor Nurseries), Peanuts, Pears , Pome Fruits, Potatoes / Sweet P otatoes, Sorghum, Soy

beans , Stonefruits, Sweet Corn, Sugarcane , Swiss Chard , and Turnip Greens **To :**  Julie L. VanAlstine , Environmental Health Scientist

Charles (Billy

) Smith , Branch Chief Risk Assessment Branch 1 Health Effects Division ( 7509P ) Sydney Jackson, Risk Manager Reviewer Barbara Madden, Minor Use Team Leader Risk Integration Minor Use, and Emergency Response Branch Registration Division (7505P) Jennifer Gaines , Risk Manager Reviewer Reuben Baris , Product Manager Team 7 Insecticide

- Rodenticide Branch Registration Division (7505P) **From:** He Zhong , Ph.D. , Biologist ,

Sujatha Sankula, Ph.D. , Branch Chief Meghan Radtke, Ph.D., Acting RAPL Environmental Risk Branch 1 Environmental Fate and Effects Division (7507P)2

The Environmental Fate and Effects Division (EFED) has completed the drinking water assessment in support of IR

- 4 new and revised use s registration of the insecticide , novaluron , ((RS)

- 1

- [3

- Chloro

- 4 (1,1,2

- trifluoromethoxyethox y)phenyl ]

- 3

- (2,6

- difluorobenzoy 1)urea, on Avocado; Beans, Berries (Low - Growing), Bushberries, Carrot; Cotton, Cucurbit Vegetables, Fruiting Vegetables, Head and Stem Brassica, Leaf y Brassica Greens, Ornamentals (Container Grown Ornamentals in Greenhouses, Shadehous es, Outdoor Nurseries), Peanuts, Pears , Pome Fruits, Potatoes / Sweet P otatoes, Sorghum, Soy

beans , Stonefruits, Sweet Corn, Sugarcane , Swiss Chard , and Turnip Greens ( Tabl e 1). Based on a review of the product label for the crops listed above , the maximum annual application rate s for the proposed IR

- 4 new and revised uses ranged from 0. 16 to 0.97 lb ai/A (Table 1). The proposed upper rate is equal to the previous rate for pome and stone fruits (0.972 lb ai/A) (USEPA 2009 , D363989 ) , and much lower than the previous application rate for poultry litter application s (1 4.82 lb ai/A) (USEPA 2013 , D412441)

. **Table 1. Novaluron application rates for the proposed new and revised uses.**  Crop (Subgroup) Maximum Application Rate 1 (lb a.i./A) Maximum

Number of Applications Per Year Minimum

Interval Between Applications (Days) Method of

Application 1 Single Annual

RIMON 0.83 EC (9.3% a.i.) Avocado 0.13 0.38 3 14 GA, AA Bean 0.077 0.23 3 7 GA,AA Lo w - Growing Berries 0.077 0.23 3 7 GA,AA, CHEM Bush b erries 0.193 0.58 3 10 GA,AA, CHEM Carrot 0.08 0.24 3 7 GA,AA, CHEM Cotton 0.09 0.27 3 7 GA,AA, CHEM Cucurbit Vegetables 0.08 0.2 3 3 14 GA,AA, CHEM Fruiting Vegetables 0.08 0.2 3 3 7 GA,AA, CHEM Head and Stem Brassica 0.08 0.16 2 7 GA,AA, CHEM Leafy Brassica Greens 0.08 0.2 3 3 7 GA,AA, CHEM Ornamentals 0.17 0.34 2 30 GA Peanuts 0.08 0.23 3 7 GA,AA, CHEM Group 11

- 10 Pear 0.21 0.62 3 10 OS Group 11

- 10 Pome 0.323 0.97 3 10 OS Potatoes / Sweet Potatoes 0.08 0.16 2 7 GA,AA, CHEM Grain Sorghum 0.08 0.23 3 7 GA,AA, CHEM Soy beans 0.08 0.23 3 10 GA,AA, CHEM Stone Fruit 0.323 0.97 3 7 GA,AA, CHEM3

Crop (Subgroup) Maximum Application Rate 1 (lb a.i./A) Maximum

Number of Applications Per Year Minimum

Interval Between Applications Method of

Application 1 Straw berry 0.08 0.23 3 7 GA,AA, CHEM Sugarcane 0.08 0.39 5 14 GA,AA, CHEM Sweet Corn 0.08 0.39 5 7 GA,AA, CHEM Swiss Chard 0.08 0.23 3 7 GA,AA, CHEM Turnip Greens 0.08 0.23 3 7 GA,AA, CHEM 1

– It shows only the maximum application rate and minimum reapplication intervals for novaluron proposed uses,

-- OS : Orchard Spraying,; GA: Ground Application; BA: Band Application (in Cotton only); AA: Aerial Application; CHEM: Chemigation; CHEM

- PW: Chemigation system connected to public water systems; S

- CHEM: Sprinkler Chemigation, The estimated drinking water conc entrations (EDWC) of novaluron and its degradates ( chlorophenylurea and chloroaniline ) from the new proposed and revised uses are not expected to exceed those from previous registered uses on PA apples (0.972 lbs ai/A/year) and poultry

litter ( 14.82 lb ai/A/year). Therefore, EFED continues to recommend the previous surface water upper bound EDWCs (Table 2)

. Table 2. The upper bound EDWCs for novaluron , chlorophenylurea and chloroaniline **Acute (**  **μg/L )**  **Non -**  **cancer Chronic**

**(μg/L) Cancer**  **Chronic**

**(μg/L) Novaluron**  (PA Apples) 3 * 0.76 0.62 **Chlorophenyl Urea** (P oultry litter use) 8.77 6.01 3.21 **Chloroaniline** (P oultry litter use) 12,59 10.05 6.05 * Novaluron solubility limit In addition , EFED continues to recommend the previous ly estimated concentrations of novaluron and two degradates modeled b y SCI

- GROW and PRZM

- GW in shallow ground water sources with the peak EDWCs not to exceed **8.72 x 10 -**  **2 μg/L**  (SCI

GROW), **0.43 μg/L** and **84.2 μg/L** (PRZM

- GW) for novaluron, chlorophenyl urea , and chloroanil ine , respectively

. **References** UPEPA 2009. Novaluron and Novaluron Degradates (C hlorophenylurea and C hloroaniline ) Drinking Water Assessment in Support of New Use Registration Action for Sorghum, Fruiting Vegetables (Group 8, D364309), Cucurbit Vegetables (Group 9), Low

- growing Berry Subgroup (13

- 07G), Snap and Dry Bean, and Swiss Chard. D363989 and D364309. 4pp. USEPA 2013. Drinking Water Assessment in Support of the New Indoor and Outdoor non - food Use of Novaluron for Pest Control. DP Barcode: 412441 28pp.